:root {
  --background: #0e1420;
  --surface: #151d2b;
  --surface-alt: #202a3a;
  --primary: #8b8cff;
  --text: #f3f5f8;
  --muted: #a7b0c0;
  --border: #344054;
  --danger: #f97066;
  --success: #47cd89;
  --warning: #f4bd50;
  --shadow-sm: 0 1px 2px rgb(0 0 0 / .18), 0 5px 16px rgb(0 0 0 / .08);
  --shadow-md: 0 16px 46px rgb(0 0 0 / .22), 0 2px 8px rgb(0 0 0 / .14);
  --shadow-lg: 0 28px 90px rgb(0 0 0 / .36);
  --radius-sm: 8px;
  --radius: 13px;
  --radius-lg: 20px;
  --sidebar-width: 232px;
  --ad-width: 332px;
  color-scheme: dark;
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
}

[data-theme="classic"], [data-theme="paper"], [data-theme="lavender"], [data-theme="rose"], [data-theme="arctic"] { color-scheme: light; }

* { box-sizing: border-box; }
html { min-width: 320px; scroll-behavior: smooth; background: var(--background); }
html.reduce-motion { scroll-behavior: auto; }
html.reduce-motion *, html.reduce-motion *::before, html.reduce-motion *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
body { margin: 0; min-height: 100vh; background: var(--background); color: var(--text); line-height: 1.45; overflow-x: hidden; }
body::selection { background: color-mix(in srgb, var(--primary) 45%, transparent); }
button, input, select, textarea { font: inherit; color: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
button { cursor: pointer; }
button:disabled, input:disabled, select:disabled { cursor: not-allowed; opacity: .52; }
a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }
svg.icon { flex: 0 0 auto; }
h1, h2, h3, h4, p { margin-top: 0; }
h1, h2, h3, h4, strong, b { letter-spacing: -.015em; }
input, select, textarea {
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--surface) 92%, var(--background));
  border-radius: 9px;
  padding: 10px 12px;
  outline: none;
  min-height: 42px;
  transition: border-color .16s ease, box-shadow .16s ease, background .16s ease;
}
input:focus, select:focus, textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--primary) 20%, transparent);
}
input::placeholder, textarea::placeholder { color: color-mix(in srgb, var(--muted) 72%, transparent); }
select { appearance: none; background-image: linear-gradient(45deg, transparent 50%, var(--muted) 50%), linear-gradient(135deg, var(--muted) 50%, transparent 50%); background-position: calc(100% - 16px) 18px, calc(100% - 11px) 18px; background-size: 5px 5px, 5px 5px; background-repeat: no-repeat; padding-right: 32px; }
input[type="checkbox"], input[type="radio"] { min-height: auto; padding: 0; box-shadow: none; }
:focus-visible { outline: 2px solid color-mix(in srgb, var(--primary) 92%, white); outline-offset: 2px; }
[hidden], .hidden { display: none !important; }
.clickable { cursor: pointer; }

::-webkit-scrollbar { width: 11px; height: 11px; }
::-webkit-scrollbar-track { background: color-mix(in srgb, var(--background) 70%, var(--surface)); }
::-webkit-scrollbar-thumb { background: color-mix(in srgb, var(--border) 82%, var(--muted)); border-radius: 20px; border: 3px solid var(--background); }
::-webkit-scrollbar-thumb:hover { background: var(--muted); }

#app { min-height: 100vh; }
.noscript { padding: 16px; background: #7a271a; color: white; text-align: center; }
.boot-screen, .fatal-screen, .route-error { min-height: 100vh; display: grid; place-content: center; justify-items: center; gap: 13px; padding: 32px; text-align: center; }
.boot-screen .logo-mark, .fatal-screen .logo-mark, .route-error .logo-mark { color: var(--primary); }
.boot-screen strong { font-size: 23px; }
.boot-screen small { color: var(--muted); }
.fatal-screen, .route-error { max-width: 720px; margin: auto; }
.fatal-screen h1, .route-error h1 { margin: 8px 0 0; }
.fatal-screen p, .route-error p { color: var(--muted); max-width: 600px; }
.route-loading { min-height: 100vh; display: grid; place-items: center; }

.logo-mark { display: inline-grid; place-items: center; color: var(--primary); width: var(--logo-size); height: var(--logo-size); }
.logo-mark svg { overflow: visible; }

.button {
  min-height: 40px;
  border: 1px solid transparent;
  border-radius: 9px;
  padding: 9px 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 700;
  font-size: 14px;
  white-space: nowrap;
  transition: transform .15s ease, border-color .15s ease, background .15s ease, color .15s ease, box-shadow .15s ease;
}
.button:hover:not(:disabled) { transform: translateY(-1px); }
.button:active:not(:disabled) { transform: translateY(0); }
.button.primary { background: var(--primary); color: color-mix(in srgb, var(--background) 92%, black); box-shadow: 0 8px 22px color-mix(in srgb, var(--primary) 22%, transparent); }
.button.primary:hover:not(:disabled) { background: color-mix(in srgb, var(--primary) 87%, white); box-shadow: 0 11px 28px color-mix(in srgb, var(--primary) 28%, transparent); }
.button.secondary { background: color-mix(in srgb, var(--surface-alt) 82%, transparent); color: var(--text); border-color: var(--border); }
.button.secondary:hover:not(:disabled) { background: color-mix(in srgb, var(--surface-alt) 70%, var(--primary) 12%); border-color: color-mix(in srgb, var(--border) 65%, var(--primary)); }
.button.danger { background: var(--danger); color: #fff; }
.button.danger-subtle { background: color-mix(in srgb, var(--danger) 10%, transparent); color: var(--danger); border-color: color-mix(in srgb, var(--danger) 30%, var(--border)); }
.button.danger-subtle:hover:not(:disabled) { background: color-mix(in srgb, var(--danger) 18%, transparent); }
.button.large { min-height: 49px; padding: 12px 20px; font-size: 15px; border-radius: 11px; }
.button.compact { min-height: 33px; padding: 6px 10px; font-size: 12px; border-radius: 8px; }

.icon-button {
  width: 38px;
  height: 38px;
  padding: 0;
  border: 1px solid transparent;
  border-radius: 9px;
  display: inline-grid;
  place-items: center;
  background: transparent;
  color: var(--muted);
  transition: color .15s ease, background .15s ease, border-color .15s ease, transform .15s ease;
}
.icon-button:hover:not(:disabled) { color: var(--text); background: var(--surface-alt); border-color: var(--border); }
.icon-button:active:not(:disabled) { transform: scale(.96); }
.text-button, .text-link { border: 0; padding: 0; background: transparent; color: var(--primary); font-size: 13px; font-weight: 750; display: inline-flex; align-items: center; gap: 6px; }
.text-button:hover, .text-link:hover { color: color-mix(in srgb, var(--primary) 75%, white); }

.panel, .surface-panel {
  background: color-mix(in srgb, var(--surface) 96%, transparent);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}
.panel-header { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; padding: 22px 22px 17px; }
.panel-header h2 { margin: 3px 0 0; font-size: 18px; }
.panel-footer { border-top: 1px solid var(--border); padding: 12px 20px; }
.muted-footer { color: var(--muted); font-size: 12px; }
.eyebrow { color: var(--primary); font-size: 11px; line-height: 1.2; font-weight: 850; letter-spacing: .11em; text-transform: uppercase; }
.status-pill { display: inline-flex; align-items: center; gap: 6px; min-height: 25px; padding: 4px 9px; border: 1px solid var(--border); background: var(--surface-alt); border-radius: 999px; color: var(--muted); font-size: 11px; font-weight: 750; }
.status-pill.success { color: var(--success); border-color: color-mix(in srgb, var(--success) 32%, var(--border)); background: color-mix(in srgb, var(--success) 10%, transparent); }
.status-pill.warning { color: var(--warning); border-color: color-mix(in srgb, var(--warning) 35%, var(--border)); background: color-mix(in srgb, var(--warning) 10%, transparent); }
.status-pill.danger { color: var(--danger); border-color: color-mix(in srgb, var(--danger) 35%, var(--border)); background: color-mix(in srgb, var(--danger) 10%, transparent); }
.status-pill.neutral { color: var(--muted); }
.status-pill.load-normal { color: var(--primary); }
.status-pill.load-light { color: var(--warning); }
.status-pill.load-off { color: var(--muted); }

.spinner { width: 20px; height: 20px; display: inline-block; border: 2px solid color-mix(in srgb, currentColor 24%, transparent); border-top-color: currentColor; border-radius: 50%; animation: spin .75s linear infinite; }
.spinner.small { width: 15px; height: 15px; }
@keyframes spin { to { transform: rotate(360deg); } }
.loading-block { display: flex; align-items: center; gap: 11px; color: var(--muted); padding: 30px; }

.inline-notice { display: flex; align-items: flex-start; gap: 11px; border: 1px solid color-mix(in srgb, var(--primary) 28%, var(--border)); background: color-mix(in srgb, var(--primary) 8%, var(--surface)); border-radius: 11px; padding: 13px 15px; color: var(--muted); font-size: 13px; }
.inline-notice > .icon { color: var(--primary); margin-top: 1px; }
.inline-notice > div { flex: 1; display: grid; gap: 2px; }
.inline-notice strong { color: var(--text); }
.inline-notice.notice-warning { border-color: color-mix(in srgb, var(--warning) 38%, var(--border)); background: color-mix(in srgb, var(--warning) 8%, var(--surface)); }
.inline-notice.notice-warning > .icon { color: var(--warning); }
.inline-notice.notice-danger { border-color: color-mix(in srgb, var(--danger) 36%, var(--border)); background: color-mix(in srgb, var(--danger) 8%, var(--surface)); }
.inline-notice.notice-danger > .icon { color: var(--danger); }

.metric-grid { display: grid; gap: 14px; }
.metric-card { min-width: 0; min-height: 112px; display: flex; align-items: center; gap: 14px; padding: 18px; border: 1px solid var(--border); background: var(--surface); border-radius: var(--radius); box-shadow: var(--shadow-sm); }
.metric-icon { width: 42px; height: 42px; display: grid; place-items: center; border-radius: 11px; flex: 0 0 auto; color: var(--primary); background: color-mix(in srgb, var(--primary) 11%, var(--surface-alt)); }
.metric-card > div { min-width: 0; display: grid; }
.metric-card strong { font-size: 25px; line-height: 1.15; }
.metric-card small, .metric-card span { color: var(--muted); font-size: 12px; }
.metric-card > div > span { color: var(--text); font-weight: 700; margin-top: 2px; }
.metric-card.tone-danger .metric-icon, .metric-card.tone-danger > div > strong { color: var(--danger); }
.metric-card.tone-success .metric-icon, .metric-card.tone-success > div > strong { color: var(--success); }
.metric-card.tone-accent .metric-icon, .metric-card.tone-accent > div > strong { color: #c592ff; }
.metric-card.tone-neutral .metric-icon { color: var(--muted); }
.metric-card.tone-primary .metric-icon, .metric-card.tone-primary > div > strong { color: var(--primary); }

.thin-progress { height: 5px; background: color-mix(in srgb, var(--border) 65%, transparent); border-radius: 999px; overflow: hidden; }
.thin-progress.large { height: 7px; }
.thin-progress > span, .deck-progress-mini > span, .study-progress-track > span { display: block; width: var(--value, 0%); height: 100%; background: var(--primary); border-radius: inherit; transition: width .28s ease; }
.progress-ring { --progress: 0; display: inline-grid; place-items: center; width: 84px; height: 84px; border-radius: 50%; background: conic-gradient(var(--primary) calc(var(--progress) * 1%), color-mix(in srgb, var(--border) 70%, transparent) 0); position: relative; }
.progress-ring::after { content: ""; position: absolute; inset: 7px; background: var(--surface); border-radius: 50%; }
.progress-ring span { position: relative; z-index: 1; font-weight: 800; }

.search-field { min-width: 240px; min-height: 42px; display: flex; align-items: center; gap: 9px; border: 1px solid var(--border); border-radius: 10px; padding: 0 11px; background: color-mix(in srgb, var(--surface) 92%, var(--background)); color: var(--muted); }
.search-field:focus-within { border-color: var(--primary); box-shadow: 0 0 0 3px color-mix(in srgb, var(--primary) 18%, transparent); }
.search-field input { flex: 1; min-width: 0; min-height: 39px; border: 0; padding: 0; background: transparent; box-shadow: none; }
.search-field kbd { border: 1px solid var(--border); background: var(--surface-alt); color: var(--muted); border-radius: 5px; padding: 2px 5px; font-size: 10px; }
.search-field.compact { min-width: 220px; min-height: 37px; }
.search-field.compact input { min-height: 35px; }
.compact-select { display: flex; align-items: center; gap: 8px; font-size: 12px; color: var(--muted); }
.compact-select select { min-height: 38px; padding-top: 7px; padding-bottom: 7px; }
.segmented-control { display: inline-flex; align-items: stretch; border: 1px solid var(--border); background: color-mix(in srgb, var(--background) 45%, var(--surface)); border-radius: 9px; padding: 3px; gap: 2px; }
.segmented-control button { min-height: 32px; padding: 6px 10px; border: 0; border-radius: 6px; background: transparent; color: var(--muted); font-size: 12px; font-weight: 700; display: inline-flex; align-items: center; justify-content: center; gap: 6px; }
.segmented-control button:hover { color: var(--text); }
.segmented-control button.active { color: var(--text); background: var(--surface-alt); box-shadow: 0 1px 4px rgb(0 0 0 / .15); }
.segmented-control.compact button { min-width: 58px; min-height: 29px; padding: 4px 8px; }

.field, .form-field { display: grid; gap: 6px; min-width: 0; color: var(--muted); font-size: 12px; }
.field > span, .form-field > span { color: var(--text); font-weight: 700; font-size: 13px; }
.field small, .form-field small { color: var(--muted); line-height: 1.35; }
.form-grid { display: grid; gap: 15px; }
.form-grid.two-column { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.form-grid .span-2 { grid-column: span 2; }
.form-fieldset { min-width: 0; margin: 0; padding: 17px; border: 1px solid var(--border); border-radius: 11px; }
.form-fieldset legend { padding: 0 8px; color: var(--text); font-weight: 800; font-size: 14px; }
.input-suffix { display: flex; align-items: stretch; }
.input-suffix input { flex: 1; min-width: 0; border-radius: 9px 0 0 9px; }
.input-suffix > span { display: grid; place-items: center; min-width: 58px; border: 1px solid var(--border); border-left: 0; border-radius: 0 9px 9px 0; background: var(--surface-alt); color: var(--muted); font-size: 12px; font-weight: 700; }
.form-error { border: 1px solid color-mix(in srgb, var(--danger) 45%, var(--border)); border-radius: 9px; padding: 11px; background: color-mix(in srgb, var(--danger) 9%, transparent); color: var(--danger); font-size: 13px; }

.toggle-row { display: flex; align-items: center; justify-content: space-between; gap: 18px; padding: 14px 0; border-top: 1px solid var(--border); cursor: pointer; }
.toggle-row > span:first-child { display: grid; gap: 2px; }
.toggle-row strong { font-size: 13px; }
.toggle-row small { color: var(--muted); }
.toggle-row input, .toggle-inline input { position: absolute; opacity: 0; pointer-events: none; }
.switch { width: 42px; height: 24px; padding: 2px; flex: 0 0 auto; background: color-mix(in srgb, var(--border) 85%, var(--muted)); border-radius: 999px; transition: background .18s ease; }
.switch::after { content: ""; display: block; width: 20px; height: 20px; background: white; border-radius: 50%; box-shadow: 0 1px 3px rgb(0 0 0 / .25); transition: transform .18s ease; }
input:checked + .switch, input:checked + * + .switch { background: var(--primary); }
input:checked + .switch::after, input:checked + * + .switch::after { transform: translateX(18px); }
.switch.small { width: 34px; height: 20px; }
.switch.small::after { width: 16px; height: 16px; }
input:checked + .switch.small::after, input:checked + * + .switch.small::after { transform: translateX(14px); }

.empty-state { min-height: 250px; display: grid; place-content: center; justify-items: center; gap: 8px; text-align: center; padding: 35px; }
.empty-state-icon { width: 58px; height: 58px; display: grid; place-items: center; border-radius: 16px; color: var(--primary); background: color-mix(in srgb, var(--primary) 12%, var(--surface-alt)); margin-bottom: 4px; }
.empty-state h3 { margin: 0; font-size: 18px; }
.empty-state p { margin: 0 0 8px; color: var(--muted); max-width: 460px; }
.compact-empty { min-height: 170px; display: grid; place-content: center; justify-items: center; gap: 5px; color: var(--muted); text-align: center; padding: 24px; }
.compact-empty strong { color: var(--text); }
.compact-empty.small { min-height: 110px; }
.spacious-panel { min-height: 390px; }

.toast-host { position: fixed; top: 18px; right: 18px; z-index: 10000; display: grid; gap: 10px; width: min(390px, calc(100vw - 32px)); pointer-events: none; }
.toast { display: grid; grid-template-columns: auto 1fr auto; gap: 10px; align-items: start; padding: 13px 14px; border: 1px solid var(--border); border-radius: 11px; background: color-mix(in srgb, var(--surface) 94%, black); box-shadow: var(--shadow-md); transform: translateX(20px); opacity: 0; transition: transform .18s ease, opacity .18s ease; pointer-events: auto; }
.toast.visible { transform: translateX(0); opacity: 1; }
.toast.leaving { transform: translateX(18px); opacity: 0; }
.toast-icon { color: var(--primary); }
.toast.toast-success .toast-icon { color: var(--success); }
.toast.toast-error .toast-icon { color: var(--danger); }
.toast.toast-warning .toast-icon { color: var(--warning); }
.toast-copy { display: grid; gap: 2px; }
.toast-copy strong { font-size: 13px; }
.toast-copy small { color: var(--muted); }
.toast .icon-button { width: 27px; height: 27px; }

.modal-overlay { position: fixed; inset: 0; z-index: 9000; display: grid; place-items: center; padding: 22px; background: rgb(2 6 12 / .7); backdrop-filter: blur(8px); opacity: 0; transition: opacity .16s ease; }
.modal-overlay.modal-visible { opacity: 1; }
.modal { width: min(620px, 100%); max-height: min(90vh, 930px); display: flex; flex-direction: column; border: 1px solid color-mix(in srgb, var(--border) 85%, var(--primary) 10%); border-radius: 16px; background: var(--surface); box-shadow: var(--shadow-lg); transform: translateY(10px) scale(.99); transition: transform .18s ease; overflow: hidden; }
.modal-visible .modal { transform: translateY(0) scale(1); }
.modal.modal-small { width: min(470px, 100%); }
.modal.modal-large { width: min(850px, 100%); }
.modal.modal-wide { width: min(1080px, 100%); }
.modal-header { display: flex; align-items: flex-start; gap: 18px; padding: 20px 22px 16px; border-bottom: 1px solid var(--border); }
.modal-header > div { flex: 1; min-width: 0; }
.modal-header h2 { margin: 0; font-size: 19px; overflow-wrap: anywhere; }
.modal-header p { margin: 3px 0 0; color: var(--muted); font-size: 12px; }
.modal-close { margin: -5px -7px 0 0; }
.modal-body { overflow: auto; padding: 21px 22px; }
.modal-actions { display: flex; justify-content: flex-end; align-items: center; gap: 9px; margin-top: 20px; }
.modal-intro { color: var(--muted); margin-bottom: 17px; }
.modal-section { margin-top: 21px; padding-top: 18px; border-top: 1px solid var(--border); }
.modal-section h4 { margin-bottom: 12px; }
.confirm-copy > p { color: var(--text); font-size: 15px; }
.action-list, .choice-stack { display: grid; gap: 7px; }
.action-list > button, .action-list-item, .choice-button { width: 100%; min-height: 62px; display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 13px; padding: 11px 12px; border: 1px solid transparent; border-radius: 10px; background: transparent; color: var(--text); text-align: left; }
.action-list > button:hover, .action-list-item:hover, .choice-button:hover { border-color: var(--border); background: var(--surface-alt); }
.action-list > button > .icon:first-child, .action-list-item > .icon:first-child, .choice-button > .icon:first-child { color: var(--primary); }
.action-list > button span, .action-list-item span, .choice-button span { min-width: 0; display: grid; }
.action-list > button small, .action-list-item small, .choice-button small { color: var(--muted); font-size: 11px; }
.action-list > button.danger-row, .action-list-item.danger { color: var(--danger); }
.action-list > button.danger-row > .icon:first-child, .action-list-item.danger > .icon:first-child { color: var(--danger); }
.choice-card-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; }
.choice-card { position: relative; min-height: 150px; display: grid; align-content: start; gap: 7px; padding: 15px; border: 1px solid var(--border); border-radius: 12px; background: color-mix(in srgb, var(--surface-alt) 55%, transparent); cursor: pointer; }
.choice-card:hover { border-color: color-mix(in srgb, var(--primary) 55%, var(--border)); }
.choice-card input { position: absolute; opacity: 0; }
.choice-card:has(input:checked) { border-color: var(--primary); background: color-mix(in srgb, var(--primary) 10%, var(--surface)); box-shadow: inset 0 0 0 1px var(--primary); }
.choice-indicator { position: absolute; top: 12px; right: 12px; width: 17px; height: 17px; border: 1px solid var(--border); border-radius: 50%; }
.choice-card:has(input:checked) .choice-indicator { border: 5px solid var(--primary); }
.choice-icon { width: 42px; height: 42px; display: grid; place-items: center; color: var(--primary); border-radius: 11px; background: color-mix(in srgb, var(--primary) 12%, var(--surface-alt)); }
.choice-card small { color: var(--muted); line-height: 1.35; }

.app-layout { min-height: 100vh; display: grid; grid-template-columns: var(--sidebar-width) minmax(0, 1fr) var(--ad-width); align-items: stretch; }
.app-sidebar { position: sticky; top: 0; height: 100vh; padding: 19px 14px 17px; display: flex; flex-direction: column; border-right: 1px solid var(--border); background: color-mix(in srgb, var(--surface) 94%, var(--background)); z-index: 30; }
.app-brand { display: flex; align-items: center; gap: 10px; padding: 4px 10px 19px; }
.app-brand > span:last-child { display: grid; line-height: 1.05; }
.app-brand strong { font-size: 18px; }
.app-brand small { margin-top: 3px; color: var(--primary); font-size: 10px; font-weight: 850; letter-spacing: .14em; text-transform: uppercase; }
.sidebar-nav { display: grid; gap: 4px; }
.sidebar-link { min-height: 43px; display: flex; align-items: center; gap: 11px; padding: 9px 11px; border: 1px solid transparent; border-radius: 9px; color: var(--muted); font-size: 13px; font-weight: 700; }
.sidebar-link:hover { color: var(--text); background: var(--surface-alt); }
.sidebar-link.active { color: var(--text); border-color: color-mix(in srgb, var(--primary) 25%, var(--border)); background: color-mix(in srgb, var(--primary) 10%, var(--surface-alt)); }
.sidebar-link.active .icon { color: var(--primary); }
.sidebar-link span:nth-child(2) { flex: 1; }
.nav-badge { min-width: 22px; height: 21px; display: grid; place-items: center; padding: 0 6px; border-radius: 999px; background: color-mix(in srgb, var(--primary) 17%, var(--surface-alt)); color: var(--primary); font-size: 10px; }
.sidebar-spacer { flex: 1; }
.sidebar-secondary { padding-top: 10px; border-top: 1px solid var(--border); }
.local-data-note { display: flex; align-items: flex-start; gap: 9px; margin-top: 14px; padding: 11px; border: 1px solid var(--border); border-radius: 9px; background: color-mix(in srgb, var(--surface-alt) 52%, transparent); color: var(--muted); }
.local-data-note .icon { color: var(--success); margin-top: 1px; }
.local-data-note span { display: grid; gap: 1px; }
.local-data-note strong { color: var(--text); font-size: 11px; }
.local-data-note small { font-size: 9px; line-height: 1.35; }
.app-center { min-width: 0; }
.app-content { width: 100%; }
.mobile-app-header { display: none; }
.view, .library-view { width: 100%; max-width: 1280px; margin: 0 auto; padding: 30px 30px 110px; }
.view-header { display: flex; align-items: flex-start; justify-content: space-between; gap: 22px; margin-bottom: 25px; }
.view-heading-copy { min-width: 0; max-width: 720px; }
.view-heading-copy h1 { margin: 5px 0 6px; font-size: clamp(25px, 2.2vw, 34px); line-height: 1.13; }
.view-heading-copy p { margin: 0; color: var(--muted); max-width: 680px; }
.view-header-actions { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 9px; padding-top: 4px; }
.back-button { margin-bottom: 11px; }

.app-ad-rail, .landing-ad-rail { width: var(--ad-width); padding: 20px 16px 26px; border-left: 1px solid var(--border); background: color-mix(in srgb, var(--background) 95%, var(--surface)); }
.app-ad-rail { position: sticky; top: 0; height: 100vh; overflow-y: auto; }
.ad-label { color: color-mix(in srgb, var(--muted) 72%, transparent); font-size: 9px; letter-spacing: .13em; text-align: center; text-transform: uppercase; margin: 0 0 7px; }
.ad-label.second { margin-top: 23px; }
.ad-slot { width: 300px; max-width: 100%; margin: 0 auto; display: grid; place-content: center; justify-items: center; gap: 5px; border: 1px dashed color-mix(in srgb, var(--border) 78%, var(--muted)); border-radius: 8px; background: repeating-linear-gradient(135deg, color-mix(in srgb, var(--surface) 55%, transparent) 0 10px, color-mix(in srgb, var(--surface-alt) 25%, transparent) 10px 20px); color: var(--muted); text-align: center; }
.ad-slot-rectangle { height: 250px; }
.ad-slot-skyscraper { height: 600px; }
.ad-placeholder-mark { width: 38px; height: 27px; display: grid; place-items: center; border: 1px solid var(--border); border-radius: 5px; font-size: 10px; font-weight: 850; }
.ad-slot strong { color: var(--text); font-size: 13px; }
.ad-slot span { max-width: 170px; font-size: 10px; }
.ad-disclosure { width: 300px; max-width: 100%; margin: 11px auto 0; color: color-mix(in srgb, var(--muted) 74%, transparent); font-size: 9px; line-height: 1.45; text-align: center; }
.app-ad-rail.compact .ad-disclosure { display: none; }

/* Marketing website */
.landing-page { min-height: 100vh; background:
  radial-gradient(circle at 35% 2%, color-mix(in srgb, var(--primary) 13%, transparent) 0, transparent 31rem),
  radial-gradient(circle at 72% 25%, color-mix(in srgb, #55d6be 8%, transparent) 0, transparent 28rem),
  var(--background); }
.site-header { width: min(1540px, calc(100% - 36px)); min-height: 78px; margin: 0 auto; display: flex; align-items: center; gap: 30px; border-bottom: 1px solid color-mix(in srgb, var(--border) 65%, transparent); }
.site-brand { display: inline-flex; align-items: center; gap: 10px; font-size: 19px; font-weight: 850; }
.site-brand.small { font-size: 15px; }
.site-nav { display: flex; align-items: center; gap: 25px; margin-left: auto; }
.site-nav a { color: var(--muted); font-size: 13px; font-weight: 650; }
.site-nav a:hover { color: var(--text); }
.site-cta { margin-left: 4px; }
.landing-grid { width: min(1540px, calc(100% - 36px)); margin: 0 auto; display: grid; grid-template-columns: minmax(0, 1fr) var(--ad-width); align-items: start; }
.landing-main { min-width: 0; padding-right: 38px; }
.landing-ad-rail { position: sticky; top: 0; min-height: 100vh; padding-top: 26px; }
.hero-section { min-height: 660px; display: grid; grid-template-columns: minmax(370px, .88fr) minmax(520px, 1.12fr); align-items: center; gap: clamp(35px, 5vw, 80px); padding: 76px 0 68px; }
.hero-copy h1 { max-width: 690px; margin: 12px 0 20px; font-size: clamp(46px, 5.3vw, 78px); line-height: .99; letter-spacing: -.055em; }
.hero-copy > p { max-width: 660px; color: var(--muted); font-size: 18px; line-height: 1.6; }
.hero-kicker { display: inline-flex; align-items: center; min-height: 29px; padding: 5px 10px; border: 1px solid color-mix(in srgb, var(--primary) 30%, var(--border)); background: color-mix(in srgb, var(--primary) 8%, transparent); color: var(--primary); border-radius: 999px; font-size: 12px; font-weight: 780; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 11px; margin-top: 29px; }
.hero-trust-row { display: flex; flex-wrap: wrap; gap: 17px; margin-top: 23px; color: var(--muted); font-size: 11px; }
.hero-trust-row span { display: inline-flex; align-items: center; gap: 6px; }
.hero-trust-row .icon { color: var(--success); }
.hero-product-frame { border: 1px solid color-mix(in srgb, var(--border) 78%, var(--primary) 18%); border-radius: 17px; background: color-mix(in srgb, var(--surface) 96%, transparent); box-shadow: 0 35px 100px rgb(0 0 0 / .38), 0 0 70px color-mix(in srgb, var(--primary) 9%, transparent); overflow: hidden; transform: perspective(1400px) rotateY(-2.8deg) rotateX(1.2deg); transform-origin: center; }
.mock-window-bar { height: 38px; display: flex; align-items: center; gap: 6px; padding: 0 12px; border-bottom: 1px solid var(--border); background: color-mix(in srgb, var(--surface-alt) 65%, var(--surface)); }
.mock-window-bar > span { width: 8px; height: 8px; border-radius: 50%; background: var(--border); }
.mock-window-bar > span:first-child { background: #f97066; }
.mock-window-bar > span:nth-child(2) { background: #f4bd50; }
.mock-window-bar > span:nth-child(3) { background: #47cd89; }
.mock-window-bar small { margin: auto; color: var(--muted); font-size: 9px; }
.mock-app { height: 430px; display: grid; grid-template-columns: 125px minmax(0, 1fr); }
.mock-sidebar { padding: 16px 9px; border-right: 1px solid var(--border); background: color-mix(in srgb, var(--surface) 82%, var(--background)); }
.mock-logo { display: flex; align-items: center; gap: 7px; margin-bottom: 19px; font-size: 11px; }
.mock-nav { min-height: 31px; display: flex; align-items: center; gap: 7px; padding: 0 8px; margin-bottom: 4px; border-radius: 6px; color: var(--muted); font-size: 8px; font-weight: 700; }
.mock-nav.active { color: var(--text); background: color-mix(in srgb, var(--primary) 11%, var(--surface-alt)); }
.mock-nav.active .icon { color: var(--primary); }
.mock-nav i { margin-left: auto; display: grid; place-items: center; min-width: 16px; height: 16px; border-radius: 999px; background: color-mix(in srgb, var(--primary) 15%, transparent); color: var(--primary); font-size: 7px; font-style: normal; }
.mock-content { min-width: 0; padding: 22px; }
.mock-heading { display: flex; align-items: center; justify-content: space-between; }
.mock-heading div { display: grid; }
.mock-heading small { color: var(--primary); font-size: 7px; font-weight: 850; letter-spacing: .12em; }
.mock-heading b { font-size: 15px; }
.mock-heading button { min-height: 28px; border: 0; border-radius: 6px; background: var(--primary); padding: 0 10px; color: var(--background); font-size: 8px; font-weight: 800; }
.mock-metrics { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin: 17px 0; }
.mock-metrics > span { min-height: 64px; display: grid; align-content: center; gap: 3px; padding: 10px; border: 1px solid var(--border); border-radius: 8px; background: var(--surface); }
.mock-metrics small { color: var(--muted); font-size: 7px; }
.mock-metrics b { font-size: 16px; }
.mock-decks { display: grid; gap: 7px; }
.mock-deck { min-height: 54px; display: grid; grid-template-columns: 31px 1fr auto; align-items: center; gap: 9px; padding: 8px 10px; border: 1px solid var(--border); border-radius: 8px; background: var(--surface); }
.mock-deck i { grid-row: span 2; width: 31px; height: 31px; display: grid; place-items: center; border-radius: 7px; color: var(--primary); background: color-mix(in srgb, var(--primary) 10%, var(--surface-alt)); }
.mock-deck b { align-self: end; font-size: 9px; }
.mock-deck small { align-self: start; color: var(--muted); font-size: 7px; }
.mock-deck em { grid-column: 3; grid-row: 1 / 3; padding: 4px 7px; border: 1px solid var(--border); border-radius: 5px; color: var(--text); font-size: 7px; font-style: normal; }
.feature-strip { display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid var(--border); border-radius: 13px; background: color-mix(in srgb, var(--surface) 92%, transparent); box-shadow: var(--shadow-sm); }
.feature-strip > div { min-height: 94px; display: flex; align-items: center; gap: 12px; padding: 17px 20px; border-right: 1px solid var(--border); }
.feature-strip > div:last-child { border-right: 0; }
.feature-strip > div > .icon { color: var(--primary); }
.feature-strip span { min-width: 0; display: grid; }
.feature-strip strong { font-size: 13px; }
.feature-strip small { color: var(--muted); font-size: 10px; }
.section-block { padding: 115px 0; }
.section-heading { max-width: 760px; margin-bottom: 35px; }
.section-heading.centered { margin-left: auto; margin-right: auto; text-align: center; }
.section-heading h2, .split-copy h2 { margin: 8px 0 13px; font-size: clamp(32px, 4vw, 50px); line-height: 1.08; letter-spacing: -.04em; }
.section-heading p, .split-copy > p { color: var(--muted); font-size: 16px; line-height: 1.65; }
.workflow-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 13px; }
.workflow-grid article { min-height: 285px; position: relative; padding: 28px 24px; border: 1px solid var(--border); border-radius: 14px; background: linear-gradient(145deg, color-mix(in srgb, var(--surface-alt) 55%, var(--surface)), var(--surface)); overflow: hidden; }
.workflow-grid article > .icon { color: var(--primary); margin: 28px 0 22px; }
.workflow-grid h3 { font-size: 18px; }
.workflow-grid p { color: var(--muted); font-size: 13px; line-height: 1.6; }
.step-number { position: absolute; top: 17px; right: 18px; color: color-mix(in srgb, var(--muted) 55%, transparent); font-size: 10px; font-weight: 850; letter-spacing: .14em; }
.split-section { min-height: 590px; display: grid; grid-template-columns: 1fr 1fr; align-items: center; gap: clamp(50px, 8vw, 110px); padding: 90px 0; border-top: 1px solid color-mix(in srgb, var(--border) 65%, transparent); border-bottom: 1px solid color-mix(in srgb, var(--border) 65%, transparent); }
.split-visual { min-height: 430px; position: relative; display: grid; place-items: center; }
.privacy-visual { border: 1px solid var(--border); border-radius: 50%; background: radial-gradient(circle, color-mix(in srgb, var(--primary) 16%, var(--surface)) 0 14%, var(--surface) 15% 34%, transparent 35%); overflow: hidden; }
.privacy-lock { width: 116px; height: 116px; z-index: 4; display: grid; place-items: center; border: 1px solid color-mix(in srgb, var(--primary) 50%, var(--border)); border-radius: 50%; background: var(--surface); color: var(--primary); box-shadow: 0 0 60px color-mix(in srgb, var(--primary) 20%, transparent); }
.privacy-orbit { position: absolute; border: 1px solid color-mix(in srgb, var(--primary) 20%, var(--border)); border-radius: 50%; }
.orbit-one { width: 65%; height: 65%; }
.orbit-two { width: 90%; height: 90%; }
.privacy-chip { position: absolute; z-index: 3; padding: 7px 10px; border: 1px solid var(--border); border-radius: 999px; background: var(--surface-alt); color: var(--muted); font-size: 10px; box-shadow: var(--shadow-sm); }
.chip-one { top: 15%; left: 14%; }
.chip-two { right: 10%; top: 29%; }
.chip-three { bottom: 16%; left: 24%; }
.check-list { display: grid; gap: 12px; margin: 25px 0; }
.check-list span { display: flex; align-items: center; gap: 9px; color: var(--muted); font-size: 13px; }
.check-list .icon { color: var(--success); }
.check-list span:last-child .icon { color: var(--warning); }
.showcase-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 15px; }
.showcase-card { min-height: 310px; display: flex; flex-direction: column; border: 1px solid var(--border); border-radius: 15px; background: var(--surface); box-shadow: var(--shadow-md); overflow: hidden; }
.showcase-card > small { padding: 17px 19px 0; color: var(--primary); font-size: 9px; font-weight: 850; letter-spacing: .12em; }
.showcase-card > div { flex: 1; display: grid; place-items: center; padding: 27px; font-size: 23px; font-weight: 700; text-align: center; }
.showcase-card footer { min-height: 48px; display: flex; align-items: center; justify-content: space-between; padding: 0 17px; border-top: 1px solid var(--border); color: var(--muted); font-size: 9px; }
.showcase-card footer span { display: inline-flex; align-items: center; gap: 5px; }
.diagram-mock { width: 100%; height: 190px; position: relative; border-radius: 11px; background: linear-gradient(29deg, transparent 47%, color-mix(in srgb, var(--muted) 18%, transparent) 48% 50%, transparent 51%), radial-gradient(circle at 40% 45%, color-mix(in srgb, var(--primary) 22%, transparent), transparent 32%), var(--surface-alt); }
.diagram-line { position: absolute; height: 2px; background: color-mix(in srgb, var(--muted) 50%, transparent); transform-origin: left; }
.diagram-line.one { width: 80px; left: 22%; top: 55%; transform: rotate(-32deg); }
.diagram-line.two { width: 95px; right: 8%; top: 32%; transform: rotate(18deg); }
.mask { position: absolute; width: 63px; height: 27px; border-radius: 4px; background: #080a0f; }
.mask.red { left: 37%; top: 39%; background: #e53935; }
.mask.black { left: 15%; bottom: 20%; }
.mask.black.second { right: 13%; top: 18%; left: auto; }
.plan-stat { align-content: center !important; gap: 0; }
.plan-stat b { font-size: 65px; line-height: 1; }
.plan-stat span { color: var(--muted); font-size: 12px; font-weight: 500; }
.plan-bars { display: flex !important; align-items: flex-end !important; gap: 9px; height: 65px; padding-top: 0 !important; }
.plan-bars i { width: 16px; height: var(--w); border-radius: 5px 5px 2px 2px; background: var(--primary); opacity: .85; }
.faq-section { padding: 90px 0 115px; }
.faq-grid { max-width: 920px; margin: auto; display: grid; gap: 10px; }
.faq-grid details { border: 1px solid var(--border); border-radius: 11px; background: var(--surface); }
.faq-grid summary { padding: 18px 20px; cursor: pointer; font-weight: 750; list-style: none; }
.faq-grid summary::-webkit-details-marker { display: none; }
.faq-grid summary::after { content: "+"; float: right; color: var(--primary); }
.faq-grid details[open] summary::after { content: "−"; }
.faq-grid p { padding: 0 20px 19px; margin: 0; color: var(--muted); font-size: 13px; line-height: 1.65; }
.final-cta { min-height: 170px; display: flex; align-items: center; justify-content: space-between; gap: 25px; padding: 35px 42px; margin-bottom: 80px; border: 1px solid color-mix(in srgb, var(--primary) 38%, var(--border)); border-radius: 16px; background: linear-gradient(115deg, color-mix(in srgb, var(--primary) 13%, var(--surface)), var(--surface)); }
.final-cta > div { display: flex; align-items: center; gap: 17px; }
.final-cta small { color: var(--primary); font-size: 9px; font-weight: 850; letter-spacing: .12em; }
.final-cta h2 { margin: 2px 0 0; font-size: 26px; }
.site-footer { width: min(1540px, calc(100% - 36px)); min-height: 90px; margin: 0 auto; display: flex; align-items: center; gap: 25px; border-top: 1px solid var(--border); color: var(--muted); font-size: 11px; }
.site-footer > span { margin-left: auto; }
.site-footer nav { display: flex; gap: 17px; }
.site-footer a:hover { color: var(--text); }

/* Library */
.library-metrics { grid-template-columns: repeat(4, minmax(0, 1fr)); margin-bottom: 17px; }
.library-toolbar { min-height: 64px; display: flex; align-items: center; gap: 12px; padding: 10px 12px; margin-bottom: 11px; }
.library-toolbar .search-field { width: min(410px, 45%); }
.toolbar-spacer { flex: 1; }
.library-dropzone { min-height: 42px; display: flex; align-items: center; justify-content: center; gap: 8px; padding: 8px 12px; margin-bottom: 22px; border: 1px dashed var(--border); border-radius: 9px; color: var(--muted); background: color-mix(in srgb, var(--surface-alt) 24%, transparent); font-size: 11px; cursor: pointer; transition: border-color .16s ease, background .16s ease, color .16s ease; }
.library-dropzone:hover, .library-dropzone.drag-active { color: var(--text); border-color: var(--primary); background: color-mix(in srgb, var(--primary) 8%, var(--surface)); }
.breadcrumbs { min-height: 29px; display: flex; align-items: center; flex-wrap: wrap; gap: 5px; margin: -8px 0 14px; color: var(--muted); font-size: 11px; }
.breadcrumbs a { display: inline-flex; align-items: center; gap: 5px; }
.breadcrumbs a:hover { color: var(--text); }
.library-content-head { display: flex; align-items: center; justify-content: space-between; margin: 19px 2px 11px; }
.library-content-head > div { display: flex; align-items: baseline; gap: 9px; }
.library-content-head h2 { margin: 0; font-size: 16px; }
.library-content-head span { color: var(--muted); font-size: 11px; }
.library-items.grid { display: grid; grid-template-columns: repeat(3, minmax(210px, 1fr)); gap: 11px; }
.library-item { min-width: 0; position: relative; border: 1px solid var(--border); border-radius: 11px; background: var(--surface); box-shadow: var(--shadow-sm); transition: border-color .15s ease, transform .15s ease, background .15s ease; }
.library-item:hover { transform: translateY(-1px); border-color: color-mix(in srgb, var(--primary) 35%, var(--border)); }
.library-item.selected { border-color: var(--primary); box-shadow: inset 0 0 0 1px var(--primary), var(--shadow-sm); background: color-mix(in srgb, var(--primary) 7%, var(--surface)); }
.item-select { position: absolute; z-index: 4; top: 10px; left: 10px; cursor: pointer; }
.item-select input { position: absolute; opacity: 0; }
.item-select span { width: 19px; height: 19px; display: block; border: 1px solid var(--border); border-radius: 5px; background: color-mix(in srgb, var(--surface) 90%, transparent); box-shadow: 0 1px 4px rgb(0 0 0 / .18); }
.item-select input:checked + span { border-color: var(--primary); background: var(--primary); }
.item-select input:checked + span::after { content: ""; width: 8px; height: 4px; display: block; margin: 5px 0 0 4px; border-left: 2px solid var(--background); border-bottom: 2px solid var(--background); transform: rotate(-45deg); }
.library-items.grid .folder-item { min-height: 113px; display: grid; grid-template-columns: 1fr auto; align-items: center; padding: 16px 11px 13px 14px; }
.library-items.grid .folder-item .item-main { min-width: 0; display: flex; align-items: center; gap: 12px; padding: 17px 0 0 8px; border: 0; background: transparent; color: inherit; text-align: left; }
.folder-visual { width: 49px; height: 45px; flex: 0 0 auto; display: grid; place-items: center; border-radius: 10px; color: var(--primary); background: color-mix(in srgb, var(--primary) 11%, var(--surface-alt)); }
.item-copy { min-width: 0; display: grid; gap: 3px; border: 0; background: transparent; color: inherit; text-align: left; }
.item-copy strong { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 13px; }
.item-copy small { color: var(--muted); font-size: 10px; }
.item-chevron { color: var(--muted); }
.item-more { position: absolute; z-index: 4; top: 6px; right: 6px; }
.library-items.grid .folder-item .item-chevron { display: none; }
.library-items.grid .deck-item { min-height: 217px; display: grid; grid-template-columns: 1fr auto; grid-template-rows: 105px auto auto; padding: 9px 10px 10px; gap: 7px 9px; }
.item-thumbnail-host { grid-column: 1 / 3; min-width: 0; overflow: hidden; padding: 0; border: 0; border-radius: 8px; background: var(--surface-alt); }
.deck-thumbnail { width: 100%; height: 100%; display: grid; place-items: center; color: var(--primary); background: radial-gradient(circle at 40% 38%, color-mix(in srgb, var(--primary) 16%, transparent), transparent 40%), var(--surface-alt); overflow: hidden; }
.deck-thumbnail img { width: 100%; height: 100%; object-fit: cover; }
.library-items.grid .deck-item .item-copy { padding: 2px 0 0; }
.deck-progress-mini { min-width: 46px; display: grid; align-content: center; gap: 5px; }
.deck-progress-mini > span { width: 100%; height: 4px; background: var(--primary); position: relative; }
.deck-progress-mini::before { content: ""; height: 4px; margin-bottom: -9px; border-radius: 999px; background: var(--border); }
.deck-progress-mini small { color: var(--muted); font-size: 9px; text-align: right; }
.quick-study { grid-column: 1 / 3; }
.warning-tag { width: max-content; display: inline-flex; align-items: center; gap: 4px; margin-top: 3px; padding: 2px 6px; border-radius: 999px; color: var(--warning); background: color-mix(in srgb, var(--warning) 10%, transparent); font-size: 9px; }
.library-items.list { display: grid; gap: 7px; }
.library-items.list .library-item { min-height: 72px; display: grid; grid-template-columns: 58px minmax(0, 1fr) 90px 86px 40px; align-items: center; gap: 12px; padding: 7px 8px 7px 38px; }
.library-items.list .folder-item { grid-template-columns: 48px minmax(0, 1fr) 1fr 40px; }
.library-items.list .folder-item .item-main { min-width: 0; display: contents; }
.library-items.list .folder-visual { width: 43px; height: 43px; }
.library-items.list .item-thumbnail-host { width: 54px; height: 54px; grid-column: auto; }
.library-items.list .quick-study { grid-column: auto; }
.library-items.list .item-more { position: static; }
.library-items.list .item-chevron { justify-self: end; }
.library-items.list .folder-item .item-more { grid-column: 4; }
.library-items.list .folder-item .item-chevron { display: none; }
.selection-bar { position: fixed; z-index: 100; left: calc(var(--sidebar-width) + 28px); right: calc(var(--ad-width) + 28px); bottom: 20px; min-height: 65px; display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 11px 14px 11px 18px; border: 1px solid color-mix(in srgb, var(--primary) 38%, var(--border)); border-radius: 13px; background: color-mix(in srgb, var(--surface) 96%, transparent); box-shadow: var(--shadow-lg); backdrop-filter: blur(16px); }
.selection-bar > div { display: flex; align-items: center; gap: 13px; }
.selection-actions { flex-wrap: wrap; justify-content: flex-end; }
.import-progress { min-height: 100px; display: flex; align-items: center; gap: 15px; }
.import-progress > div { display: grid; gap: 3px; }
.import-progress small { color: var(--muted); }
.report-list { display: grid; gap: 7px; }
.report-list > div { padding: 10px; border: 1px solid var(--border); border-radius: 8px; }
.report-list strong, .report-list span { display: block; }
.report-list span { color: var(--muted); font-size: 11px; }

.deck-detail-layout { display: grid; grid-template-columns: 230px minmax(0, 1fr); gap: 25px; }
.deck-detail-visual { display: grid; align-content: start; gap: 15px; }
.deck-detail-visual .deck-thumbnail { height: 160px; border: 1px solid var(--border); border-radius: 11px; }
.deck-detail-progress { display: flex; justify-content: center; }
.deck-detail-summary { min-width: 0; }
.deck-detail-title { display: flex; align-items: flex-start; justify-content: space-between; gap: 15px; }
.deck-detail-title h3 { margin: 0; font-size: 23px; overflow-wrap: anywhere; }
.type-tag { display: inline-flex; align-items: center; gap: 5px; padding: 5px 8px; border: 1px solid var(--border); border-radius: 999px; color: var(--muted); font-size: 10px; }
.deck-detail-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; margin: 18px 0; }
.deck-detail-stats > div { display: grid; gap: 2px; padding: 11px; border: 1px solid var(--border); border-radius: 9px; background: var(--surface-alt); }
.deck-detail-stats strong { font-size: 18px; }
.deck-detail-stats span { color: var(--muted); font-size: 9px; }
.deck-detail-actions { display: flex; flex-wrap: wrap; gap: 8px; }
.section-inline-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 10px; }
.section-inline-head h4 { margin: 0; }
.card-preview-list { display: grid; gap: 6px; max-height: 290px; overflow: auto; }
.card-preview-list article { min-height: 53px; display: grid; grid-template-columns: 31px minmax(0, 1fr) auto; align-items: center; gap: 9px; padding: 8px 10px; border: 1px solid var(--border); border-radius: 8px; }
.card-number { color: var(--muted); font-size: 10px; }
.card-preview-list article > div { min-width: 0; display: grid; }
.card-preview-list strong { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 11px; }
.card-preview-list small { color: var(--muted); font-size: 9px; }
.miss-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--danger); }
.preview-footnote { margin-top: 9px; color: var(--muted); font-size: 10px; }
.deck-source-actions, .deck-management-actions { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
.source-action { min-height: 63px; display: flex; align-items: center; gap: 10px; padding: 10px; border: 1px solid var(--border); border-radius: 9px; background: var(--surface-alt); text-align: left; }
.source-action:hover { border-color: var(--primary); }
.source-action span { display: grid; }
.source-action small { color: var(--muted); font-size: 9px; }

/* Today */
.today-hero { min-height: 260px; display: flex; align-items: center; justify-content: space-between; gap: 36px; padding: 30px 34px; margin-bottom: 15px; background: linear-gradient(120deg, color-mix(in srgb, var(--primary) 12%, var(--surface)), var(--surface) 58%); }
.today-hero.is-overloaded { border-color: color-mix(in srgb, var(--warning) 42%, var(--border)); }
.today-hero-copy { max-width: 720px; }
.today-hero-copy h2 { margin: 13px 0 7px; font-size: 31px; }
.today-hero-copy p { margin: 0; color: var(--muted); line-height: 1.6; }
.today-hero-actions { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 21px; }
.capacity-gauge { display: flex; align-items: center; gap: 15px; min-width: 245px; padding: 18px; border: 1px solid var(--border); border-radius: 13px; background: color-mix(in srgb, var(--surface-alt) 48%, transparent); }
.capacity-ring { width: 91px; height: 91px; display: grid; place-items: center; flex: 0 0 auto; border-radius: 50%; background: conic-gradient(var(--primary) calc(var(--capacity) * 1%), color-mix(in srgb, var(--border) 65%, transparent) 0); position: relative; }
.capacity-ring::after { content: ""; position: absolute; inset: 7px; border-radius: 50%; background: var(--surface); }
.capacity-ring span { z-index: 1; display: grid; justify-items: center; line-height: 1.05; }
.capacity-ring b { font-size: 24px; }
.capacity-ring small { color: var(--muted); font-size: 9px; }
.capacity-gauge > div:last-child { display: grid; gap: 3px; }
.capacity-gauge > div:last-child small { color: var(--muted); font-size: 10px; }
.today-overload { margin-bottom: 15px; }
.today-overload .button { align-self: center; }
.today-metrics { grid-template-columns: repeat(4, minmax(0, 1fr)); margin-bottom: 15px; }
.today-content-grid { display: grid; grid-template-columns: minmax(0, 1.45fr) minmax(300px, .75fr); gap: 15px; align-items: start; }
.today-queue-list { display: grid; }
.queue-row { min-height: 59px; display: grid; grid-template-columns: 33px 118px minmax(0, 1fr) auto; align-items: center; gap: 11px; padding: 8px 20px; border-top: 1px solid var(--border); }
.queue-position { color: color-mix(in srgb, var(--muted) 65%, transparent); font-size: 9px; font-variant-numeric: tabular-nums; }
.queue-kind { width: max-content; display: inline-flex; align-items: center; gap: 5px; padding: 4px 7px; border: 1px solid var(--border); border-radius: 999px; color: var(--muted); font-size: 9px; font-weight: 750; }
.queue-kind.kind-miss { color: var(--danger); border-color: color-mix(in srgb, var(--danger) 28%, var(--border)); }
.queue-kind.kind-due_review { color: var(--primary); }
.queue-kind.kind-new { color: var(--success); border-color: color-mix(in srgb, var(--success) 28%, var(--border)); }
.queue-kind.kind-final_review { color: #c592ff; border-color: color-mix(in srgb, #c592ff 30%, var(--border)); }
.queue-row > div { min-width: 0; display: grid; }
.queue-row strong { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 12px; }
.queue-row small { color: var(--muted); font-size: 9px; }
.queue-exam { color: var(--muted); font-size: 10px; }
.subtle-count { color: var(--muted); font-size: 11px; }
.plan-status-list { display: grid; }
.plan-status-row { display: grid; gap: 9px; padding: 15px 18px; border-top: 1px solid var(--border); }
.plan-status-title { display: grid; grid-template-columns: 8px minmax(0, 1fr) auto; align-items: center; gap: 9px; }
.plan-status-title > div { min-width: 0; display: grid; }
.plan-status-title strong { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 12px; }
.plan-status-title small { color: var(--muted); font-size: 9px; }
.plan-status-title > b { font-size: 16px; }
.plan-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--success); }
.plan-dot.soon { background: var(--warning); }
.plan-dot.urgent { background: var(--danger); }
.plan-status-meta { display: flex; justify-content: space-between; color: var(--muted); font-size: 9px; }
.how-today-panel { margin-top: 16px; }
.explanation-grid { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--border); }
.explanation-grid > div { min-height: 160px; padding: 20px; border-right: 1px solid var(--border); }
.explanation-grid > div:last-child { border-right: 0; }
.explanation-grid .icon { color: var(--primary); margin-bottom: 15px; }
.explanation-grid strong { display: block; }
.explanation-grid p { color: var(--muted); font-size: 11px; line-height: 1.55; }

/* Study plans */
.plan-overview-grid { display: grid; grid-template-columns: minmax(270px, 1.55fr) repeat(3, minmax(150px, .72fr)); gap: 13px; margin-bottom: 26px; }
.plan-overview-primary { min-height: 164px; padding: 20px 22px; }
.overview-number { display: flex; align-items: baseline; gap: 8px; margin: 5px 0 3px; }
.overview-number strong { font-size: 37px; }
.overview-number span { color: var(--muted); }
.plan-overview-primary p { margin: 0 0 14px; color: var(--muted); font-size: 11px; }
.plan-overview-primary > small { display: block; margin-top: 8px; color: var(--muted); font-size: 9px; }
.plan-overview-stat { display: flex; align-items: center; gap: 12px; padding: 18px; }
.plan-overview-stat > div { display: grid; }
.plan-overview-stat strong { font-size: 27px; }
.plan-overview-stat span { font-size: 11px; font-weight: 700; }
.plan-overview-stat small { color: var(--muted); font-size: 9px; }
.section-toolbar { min-height: 45px; display: flex; align-items: center; justify-content: space-between; gap: 15px; margin: 9px 1px 12px; }
.section-toolbar > div:first-child { display: flex; align-items: baseline; gap: 9px; }
.section-toolbar h2 { margin: 0; font-size: 17px; }
.section-toolbar > div:first-child > span { color: var(--muted); font-size: 10px; }
.plan-card-list { display: grid; gap: 13px; }
.plan-card { overflow: hidden; }
.plan-card.is-paused, .plan-card.is-past { opacity: .78; }
.plan-card-head { min-height: 107px; display: grid; grid-template-columns: 67px minmax(0, 1fr) auto; align-items: center; gap: 15px; padding: 17px 20px; }
.plan-date-tile { width: 65px; height: 72px; display: grid; place-content: center; justify-items: center; border: 1px solid var(--border); border-radius: 10px; background: var(--surface-alt); line-height: 1; }
.plan-date-tile span { color: var(--primary); font-size: 9px; font-weight: 850; letter-spacing: .08em; }
.plan-date-tile strong { font-size: 29px; }
.plan-date-tile small { color: var(--muted); font-size: 8px; }
.plan-title-block { min-width: 0; }
.plan-badges { min-height: 24px; }
.plan-title-block h3 { margin: 3px 0 2px; font-size: 19px; overflow-wrap: anywhere; }
.plan-title-block p { margin: 0; color: var(--muted); font-size: 10px; }
.plan-card-actions { display: flex; align-items: center; gap: 7px; }
.plan-progress-section { padding: 15px 20px; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); background: color-mix(in srgb, var(--surface-alt) 30%, transparent); }
.plan-progress-copy { display: flex; align-items: center; justify-content: space-between; margin-bottom: 7px; font-size: 10px; }
.plan-progress-copy small { color: var(--muted); }
.plan-metric-row { display: grid; grid-template-columns: repeat(5, 1fr); }
.plan-metric-row > span { display: grid; justify-items: center; gap: 1px; padding: 15px 8px; border-right: 1px solid var(--border); }
.plan-metric-row > span:last-child { border-right: 0; }
.plan-metric-row b { font-size: 19px; }
.plan-metric-row small { color: var(--muted); font-size: 9px; }
.plan-card-foot { min-height: 42px; display: flex; align-items: center; flex-wrap: wrap; gap: 18px; padding: 9px 20px; border-top: 1px solid var(--border); color: var(--muted); font-size: 9px; }
.plan-card-foot span { display: inline-flex; align-items: center; gap: 5px; }
.plan-detail-hero { padding: 19px; border: 1px solid var(--border); border-radius: 11px; background: color-mix(in srgb, var(--primary) 8%, var(--surface-alt)); }
.plan-detail-hero h3 { margin: 5px 0; font-size: 22px; }
.plan-detail-hero p { margin: 0; color: var(--muted); }
.detail-metric-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; margin-top: 14px; }
.detail-metric-grid > div { display: grid; gap: 2px; padding: 13px; border: 1px solid var(--border); border-radius: 9px; background: var(--surface-alt); }
.detail-metric-grid strong { font-size: 18px; }
.detail-metric-grid span { color: var(--muted); font-size: 9px; }
.tag-list { display: flex; flex-wrap: wrap; gap: 7px; }
.tag-list span { display: inline-flex; align-items: center; gap: 5px; padding: 6px 9px; border: 1px solid var(--border); border-radius: 999px; background: var(--surface-alt); color: var(--muted); font-size: 10px; }
.definition-list { display: grid; gap: 8px; margin: 0; }
.definition-list > div { display: flex; justify-content: space-between; gap: 18px; padding: 9px 0; border-bottom: 1px solid var(--border); }
.definition-list dt { color: var(--muted); }
.definition-list dd { margin: 0; font-weight: 700; text-align: right; }
.plan-form { display: grid; gap: 17px; }
.scope-tabs { margin-bottom: 13px; }
.scope-panel { min-width: 0; }
.deck-picker-toolbar { display: flex; justify-content: space-between; align-items: center; margin-bottom: 8px; color: var(--muted); font-size: 11px; }
.deck-checkbox-list { max-height: 270px; overflow: auto; display: grid; gap: 6px; padding-right: 4px; }
.deck-checkbox-list label { min-height: 53px; position: relative; display: grid; grid-template-columns: 20px minmax(0, 1fr); align-items: center; gap: 9px; padding: 7px 10px; border: 1px solid var(--border); border-radius: 8px; cursor: pointer; }
.deck-checkbox-list label:hover { background: var(--surface-alt); }
.deck-checkbox-list label:has(input:checked) { border-color: var(--primary); background: color-mix(in srgb, var(--primary) 7%, var(--surface)); }
.deck-checkbox-list input { position: absolute; opacity: 0; }
.check-box { width: 18px; height: 18px; display: block; border: 1px solid var(--border); border-radius: 5px; }
.deck-checkbox-list input:checked + .check-box { background: var(--primary); border-color: var(--primary); }
.deck-checkbox-list input:checked + .check-box::after { content: ""; width: 7px; height: 4px; display: block; margin: 4px 0 0 4px; border-left: 2px solid var(--background); border-bottom: 2px solid var(--background); transform: rotate(-45deg); }
.deck-checkbox-list label > span:last-child { min-width: 0; display: grid; grid-template-columns: auto minmax(0, 1fr); align-items: center; column-gap: 7px; }
.deck-checkbox-list strong { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 11px; }
.deck-checkbox-list small { grid-column: 2; color: var(--muted); font-size: 8px; }

/* Sessions */
.session-metrics { grid-template-columns: repeat(4, minmax(0, 1fr)); margin-bottom: 25px; }
.session-section { margin-top: 25px; }
.active-session-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.active-session-grid > .empty-state { grid-column: 1 / -1; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); }
.active-session-card { display: grid; gap: 14px; padding: 16px; }
.active-session-card header, .active-session-card footer { display: flex; align-items: center; justify-content: space-between; }
.mode-chip { display: inline-flex; align-items: center; gap: 6px; padding: 4px 8px; border: 1px solid color-mix(in srgb, var(--primary) 28%, var(--border)); border-radius: 999px; background: color-mix(in srgb, var(--primary) 8%, transparent); color: var(--primary); font-size: 9px; font-weight: 750; }
.session-card-copy h3 { margin: 0 0 2px; font-size: 18px; }
.session-card-copy p { margin: 0; color: var(--muted); font-size: 10px; }
.active-session-progress { display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: center; gap: 10px; }
.active-session-progress > span { color: var(--muted); font-size: 9px; }
.session-inline-stats { display: flex; align-items: center; gap: 9px; }
.session-inline-stats > span { min-width: 74px; display: grid; padding: 8px 10px; border: 1px solid var(--border); border-radius: 8px; background: var(--surface-alt); }
.session-inline-stats b { font-size: 14px; }
.session-inline-stats small { color: var(--muted); font-size: 8px; }
.active-session-card footer > small { color: var(--muted); font-size: 9px; }
.session-history-list { display: grid; gap: 7px; }
.session-history-row { min-height: 70px; display: grid; grid-template-columns: 42px minmax(0, 1fr) 72px 72px 82px 38px; align-items: center; gap: 11px; padding: 8px 10px 8px 13px; }
.history-mode-icon { width: 38px; height: 38px; display: grid; place-items: center; border-radius: 9px; color: var(--primary); background: color-mix(in srgb, var(--primary) 10%, var(--surface-alt)); }
.history-main { min-width: 0; display: grid; }
.history-main strong { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 12px; }
.history-main small { color: var(--muted); font-size: 9px; }
.history-stat { display: grid; justify-items: end; }
.history-stat b { font-size: 13px; }
.history-stat small { color: var(--muted); font-size: 8px; }
.completion-mini-hero { display: flex; align-items: center; gap: 14px; padding: 14px; border: 1px solid var(--border); border-radius: 11px; background: color-mix(in srgb, var(--success) 7%, var(--surface-alt)); }
.completion-check { width: 52px; height: 52px; display: grid; place-items: center; flex: 0 0 auto; border-radius: 50%; color: var(--success); background: color-mix(in srgb, var(--success) 13%, var(--surface)); }
.completion-mini-hero h3 { margin: 3px 0 1px; }
.completion-mini-hero p { margin: 0; color: var(--muted); }
.answer-split { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.answer-split span { display: flex; align-items: baseline; gap: 6px; padding: 13px; border: 1px solid var(--border); border-radius: 9px; background: var(--surface-alt); }
.answer-split span.correct b { color: var(--success); }
.answer-split span.wrong b { color: var(--danger); }

/* Trash */
.trash-view > .inline-notice { margin-bottom: 15px; }
.trash-list { overflow: hidden; }
.trash-rows { display: grid; }
.trash-row { min-height: 72px; display: grid; grid-template-columns: 44px minmax(0, 1fr) auto auto; align-items: center; gap: 12px; padding: 10px 16px; border-top: 1px solid var(--border); }
.trash-item-icon { width: 40px; height: 40px; display: grid; place-items: center; border-radius: 9px; color: var(--primary); background: color-mix(in srgb, var(--primary) 10%, var(--surface-alt)); }
.trash-item-icon.folder { color: #d0a2ff; }
.trash-item-copy { min-width: 0; display: grid; }
.trash-item-copy strong { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.trash-item-copy small { color: var(--muted); font-size: 10px; }

/* Study surface and card renderer */
.study-layout { min-height: 100vh; display: grid; grid-template-columns: minmax(0, 1fr) var(--ad-width); background: var(--background); }
.study-center { min-width: 0; min-height: 100vh; display: flex; flex-direction: column; }
.study-header { min-height: 66px; display: grid; grid-template-columns: auto auto minmax(0, 1fr) auto; align-items: center; gap: 14px; padding: 0 22px; border-bottom: 1px solid var(--border); background: color-mix(in srgb, var(--surface) 93%, var(--background)); }
.study-exit { color: var(--muted); }
.study-brand { display: inline-flex; align-items: center; gap: 7px; padding-left: 13px; border-left: 1px solid var(--border); font-size: 13px; font-weight: 850; }
.study-header-copy { min-width: 0; display: grid; justify-items: center; line-height: 1.25; }
.study-header-copy strong { max-width: 470px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 13px; }
.study-header-copy small { color: var(--muted); font-size: 9px; }
.study-header-actions { display: flex; align-items: center; gap: 3px; }
.study-main { width: min(1150px, 100%); flex: 1; margin: 0 auto; padding: 18px 22px 25px; display: flex; flex-direction: column; }
.study-progress-row { min-height: 34px; display: grid; grid-template-columns: auto minmax(150px, 1fr) auto; align-items: center; gap: 13px; margin-bottom: 13px; }
.study-progress-copy { display: flex; align-items: baseline; gap: 8px; min-width: 185px; }
.study-position { font-size: 11px; font-weight: 750; }
.study-estimate { color: var(--muted); font-size: 9px; }
.study-progress-track { height: 5px; border-radius: 999px; overflow: hidden; background: color-mix(in srgb, var(--border) 66%, transparent); }
.study-percent { color: var(--muted); font-size: 10px; font-variant-numeric: tabular-nums; }
.study-workspace { min-height: 0; flex: 1; display: flex; flex-direction: column; border: 1px solid var(--border); border-radius: 14px; background: var(--surface); box-shadow: var(--shadow-md); overflow: hidden; }
.study-card-toolbar { min-height: 57px; display: flex; align-items: center; justify-content: space-between; gap: 18px; padding: 8px 12px 8px 15px; border-bottom: 1px solid var(--border); background: color-mix(in srgb, var(--surface-alt) 48%, var(--surface)); }
.study-card-identity { min-width: 0; display: flex; align-items: center; gap: 10px; }
.face-chip { min-width: 54px; padding: 4px 7px; border: 1px solid color-mix(in srgb, var(--primary) 30%, var(--border)); border-radius: 999px; background: color-mix(in srgb, var(--primary) 9%, transparent); color: var(--primary); text-align: center; font-size: 9px; font-weight: 850; letter-spacing: .09em; }
.face-chip.back { color: var(--success); border-color: color-mix(in srgb, var(--success) 32%, var(--border)); background: color-mix(in srgb, var(--success) 9%, transparent); }
.study-card-identity > div { min-width: 0; display: grid; }
.study-deck-name { max-width: 370px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 11px; }
.study-card-number { color: var(--muted); font-size: 8px; }
.study-tools { display: flex; align-items: center; gap: 4px; }
.zoom-readout { min-width: 52px; height: 32px; border: 0; border-radius: 7px; background: transparent; color: var(--muted); font-size: 10px; font-weight: 750; }
.zoom-readout:hover { background: var(--surface-alt); color: var(--text); }
.toolbar-divider { width: 1px; height: 25px; background: var(--border); margin: 0 5px; }
.remove-others.active { color: var(--primary); border-color: var(--primary); background: color-mix(in srgb, var(--primary) 10%, var(--surface-alt)); }
.study-card-stage { min-height: 430px; flex: 1; position: relative; display: flex; overflow: hidden; background:
  linear-gradient(color-mix(in srgb, var(--surface) 97%, transparent), color-mix(in srgb, var(--surface) 97%, transparent)),
  radial-gradient(circle at center, color-mix(in srgb, var(--primary) 5%, transparent), transparent 50%); }
.study-card-loading { margin: auto; display: flex; align-items: center; gap: 10px; color: var(--muted); }
.study-card-face { width: 100%; min-height: 100%; display: flex; flex-direction: column; overflow: hidden; }
.study-card-face.mixed-content { display: grid; grid-template-rows: minmax(100px, auto) minmax(230px, 1fr); }
.card-side-text { min-height: 140px; display: flex; align-items: var(--card-vertical, center); justify-content: var(--card-horizontal, center); padding: var(--card-v-margin, 18px) var(--card-h-margin, 24px); color: var(--text); font-size: var(--card-font-size, 20px); line-height: 1.55; overflow: auto; overflow-wrap: anywhere; text-align: var(--card-horizontal, center); }
.card-side-text > *:first-child { margin-top: 0; }
.card-side-text > *:last-child { margin-bottom: 0; }
.card-side-text table { max-width: 100%; border-collapse: collapse; }
.card-side-text th, .card-side-text td { border: 1px solid var(--border); padding: 6px 8px; }
.card-side-text a { color: var(--primary); text-decoration: underline; }
.card-side-text code, .card-side-text pre { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; background: var(--surface-alt); border-radius: 5px; }
.card-side-text code { padding: 2px 4px; }
.card-side-text pre { padding: 12px; overflow: auto; }
.card-image-scroller { min-height: 0; flex: 1; overflow: auto; display: grid; align-content: center; justify-items: center; padding: 18px; cursor: grab; touch-action: none; user-select: none; }
.card-image-scroller.is-panning { cursor: grabbing; }
.card-image-gallery { width: var(--image-zoom, 100%); min-width: min(100%, 340px); display: grid; justify-items: center; gap: 14px; }
.card-image-gallery.multiple { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); align-items: start; }
.card-image-figure { max-width: 100%; margin: 0; display: grid; justify-items: center; gap: 7px; }
.card-image-figure img { max-width: 100%; max-height: 650px; object-fit: contain; border-radius: 6px; user-select: none; pointer-events: none; }
.card-image-figure figcaption { color: var(--muted); font-size: 10px; }
.occlusion-scroller { align-content: start; }
.occlusion-svg { display: block; max-width: none; height: auto; min-width: 50%; margin: auto; border-radius: 5px; box-shadow: 0 0 0 1px color-mix(in srgb, var(--border) 60%, transparent); }
.occlusion-mask { stroke: rgb(255 255 255 / .35); stroke-width: 1; vector-effect: non-scaling-stroke; }
.missing-media { min-height: 180px; min-width: min(460px, 100%); display: grid; place-content: center; justify-items: center; gap: 6px; padding: 20px; border: 1px dashed var(--border); border-radius: 11px; color: var(--muted); text-align: center; }
.missing-media.large { min-height: 360px; }
.missing-media strong { color: var(--text); }
.missing-media span { max-width: 420px; overflow-wrap: anywhere; font-size: 10px; }
.blank-card-side { min-height: 300px; margin: auto; display: grid; place-content: center; justify-items: center; gap: 8px; color: var(--muted); }
.study-controls { display: grid; grid-template-columns: minmax(140px, .8fr) minmax(190px, 1fr) minmax(210px, 1.15fr); gap: 9px; margin-top: 12px; }
.study-control { min-height: 67px; display: flex; align-items: center; justify-content: center; gap: 15px; padding: 10px 15px; border: 1px solid var(--border); border-radius: 11px; background: var(--surface); color: var(--text); box-shadow: var(--shadow-sm); }
.study-control:hover { transform: translateY(-1px); }
.study-control > span:not(.keycap) { display: grid; text-align: left; }
.study-control strong { font-size: 13px; }
.study-control small { color: var(--muted); font-size: 9px; }
.study-control.secondary { color: var(--muted); }
.study-control.wrong { border-color: color-mix(in srgb, var(--danger) 35%, var(--border)); color: var(--danger); background: color-mix(in srgb, var(--danger) 7%, var(--surface)); }
.study-control.wrong.is-marked { opacity: .66; }
.study-control.primary { border-color: color-mix(in srgb, var(--primary) 50%, var(--border)); background: var(--primary); color: var(--background); }
.study-control.primary small { color: color-mix(in srgb, var(--background) 78%, transparent); }
.keycap { min-width: 33px; height: 27px; display: grid; place-items: center; padding: 0 7px; border: 1px solid color-mix(in srgb, currentColor 35%, transparent); border-radius: 6px; background: color-mix(in srgb, var(--background) 17%, transparent); font-size: 9px; font-weight: 800; box-shadow: 0 2px 0 color-mix(in srgb, currentColor 18%, transparent); }
.study-hints { display: flex; align-items: center; justify-content: center; gap: 7px; margin-top: 10px; color: var(--muted); font-size: 9px; }
.study-hints b { color: var(--text); }
.study-completion { width: min(800px, 100%); margin: auto; padding: 45px 42px; display: grid; justify-items: center; text-align: center; background: radial-gradient(circle at 50% 0, color-mix(in srgb, var(--primary) 13%, transparent), transparent 42%), var(--surface); }
.completion-crown { width: 115px; height: 115px; display: grid; place-items: center; margin-bottom: 13px; border: 1px solid color-mix(in srgb, var(--primary) 35%, var(--border)); border-radius: 50%; background: color-mix(in srgb, var(--primary) 8%, var(--surface-alt)); box-shadow: 0 0 50px color-mix(in srgb, var(--primary) 14%, transparent); }
.study-completion h1 { margin: 8px 0 5px; font-size: 31px; }
.study-completion > p { max-width: 570px; color: var(--muted); }
.completion-score { margin: 21px 0; display: grid; justify-items: center; }
.completion-score strong { font-size: 67px; line-height: 1; color: var(--primary); }
.completion-score span { color: var(--muted); font-size: 11px; }
.completion-metrics { width: 100%; display: grid; grid-template-columns: repeat(4, 1fr); margin: 2px 0 24px; border: 1px solid var(--border); border-radius: 11px; overflow: hidden; }
.completion-metrics > div { min-height: 78px; display: grid; align-content: center; gap: 2px; border-right: 1px solid var(--border); }
.completion-metrics > div:last-child { border-right: 0; }
.completion-metrics b { font-size: 19px; }
.completion-metrics span { color: var(--muted); font-size: 9px; }
.completion-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 9px; }
.missing-study { display: grid; place-items: center; padding: 30px; }
.missing-study-panel { max-width: 580px; display: grid; justify-items: center; gap: 9px; padding: 45px; text-align: center; }
.missing-study-panel h1 { margin: 7px 0 0; }
.missing-study-panel p { color: var(--muted); }

/* Settings */
.settings-form { display: grid; grid-template-columns: 170px minmax(0, 1fr); align-items: start; gap: 17px; }
.settings-section-nav { position: sticky; top: 20px; display: grid; gap: 3px; padding: 8px; border: 1px solid var(--border); border-radius: 11px; background: var(--surface); }
.settings-section-nav a { min-height: 37px; display: flex; align-items: center; padding: 7px 9px; border-radius: 7px; color: var(--muted); font-size: 10px; font-weight: 700; }
.settings-section-nav a:hover { color: var(--text); background: var(--surface-alt); }
.settings-section { grid-column: 2; padding: 21px 22px; scroll-margin-top: 20px; }
.settings-section-head { display: flex; align-items: flex-start; gap: 12px; padding-bottom: 17px; margin-bottom: 17px; border-bottom: 1px solid var(--border); }
.settings-icon { width: 43px; height: 43px; display: grid; place-items: center; flex: 0 0 auto; border-radius: 11px; color: var(--primary); background: color-mix(in srgb, var(--primary) 10%, var(--surface-alt)); }
.settings-section-head h2 { margin: 0 0 3px; font-size: 19px; }
.settings-section-head p { margin: 0; color: var(--muted); font-size: 11px; }
.theme-picker { display: grid; grid-template-columns: repeat(5, minmax(110px, 1fr)); gap: 8px; margin-bottom: 18px; }
.theme-choice { min-width: 0; position: relative; display: grid; gap: 8px; padding: 9px; border: 1px solid var(--border); border-radius: 10px; cursor: pointer; }
.theme-choice input { position: absolute; opacity: 0; }
.theme-choice:hover { border-color: color-mix(in srgb, var(--primary) 40%, var(--border)); }
.theme-choice:has(input:checked) { border-color: var(--primary); box-shadow: inset 0 0 0 1px var(--primary); background: color-mix(in srgb, var(--primary) 6%, var(--surface)); }
.theme-preview { height: 53px; display: grid; grid-template-columns: 16px 1fr; grid-template-rows: 15px 1fr; gap: 4px; padding: 6px; border-radius: 7px; background: var(--preview-background); overflow: hidden; }
.theme-preview i { grid-row: 1 / 3; border-radius: 3px; background: var(--preview-surface); }
.theme-preview b { border-radius: 3px; background: var(--preview-primary); opacity: .9; }
.theme-preview em { border-radius: 3px; background: var(--preview-surface); position: relative; }
.theme-preview em::before, .theme-preview em::after { content: ""; position: absolute; left: 4px; right: 8px; height: 2px; border-radius: 4px; background: var(--preview-text); opacity: .5; }
.theme-preview em::before { top: 7px; }
.theme-preview em::after { top: 13px; right: 13px; }
.theme-choice > span:nth-of-type(2) { min-width: 0; display: grid; }
.theme-choice strong { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 10px; }
.theme-choice small { color: var(--muted); font-size: 8px; }
.choice-check { position: absolute; top: 13px; right: 13px; width: 18px; height: 18px; display: none; place-items: center; border-radius: 50%; background: var(--primary); color: var(--background); }
.theme-choice:has(input:checked) .choice-check { display: grid; }
.settings-control-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 17px; }
.settings-control-grid.two-by-two { row-gap: 19px; }
.reinsertion-block, .date-override-block { margin-top: 23px; padding-top: 19px; border-top: 1px solid var(--border); }
.subsection-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 15px; margin-bottom: 12px; }
.subsection-head h3 { margin: 0 0 2px; font-size: 15px; }
.subsection-head p { margin: 0; color: var(--muted); font-size: 10px; }
.reinsertion-list { display: grid; gap: 7px; margin-bottom: 13px; }
.reinsertion-row { min-height: 57px; display: grid; grid-template-columns: 28px 100px minmax(0, 1fr) 38px; align-items: center; gap: 12px; padding: 7px 8px 7px 12px; border: 1px solid var(--border); border-radius: 9px; background: var(--surface-alt); }
.level-number { width: 25px; height: 25px; display: grid; place-items: center; border-radius: 7px; background: color-mix(in srgb, var(--primary) 12%, var(--surface)); color: var(--primary); font-size: 10px; font-weight: 800; }
.toggle-inline { display: flex; align-items: center; gap: 6px; color: var(--muted); font-size: 9px; cursor: pointer; }
.inline-number { min-width: 0; display: flex; align-items: center; gap: 8px; color: var(--muted); font-size: 9px; }
.inline-number input { width: 70px; min-height: 35px; padding: 5px 8px; }
.inline-number b { margin-left: auto; color: var(--muted); font-size: 9px; font-weight: 650; }
.weekday-loads { display: grid; }
.weekday-row { min-height: 54px; display: flex; align-items: center; justify-content: space-between; gap: 17px; padding: 7px 0; border-bottom: 1px solid var(--border); }
.weekday-row > span { display: grid; }
.weekday-row strong { font-size: 11px; }
.weekday-row small { color: var(--muted); font-size: 8px; }
.light-percent-field { max-width: 330px; margin-top: 17px; }
.override-add-row { display: grid; grid-template-columns: 1fr 135px auto; gap: 8px; }
.override-list { display: grid; gap: 6px; margin-top: 10px; }
.override-row { min-height: 44px; display: grid; grid-template-columns: minmax(0, 1fr) auto 36px; align-items: center; gap: 10px; padding: 5px 6px 5px 10px; border: 1px solid var(--border); border-radius: 8px; background: var(--surface-alt); }
.override-row > span:first-child { display: flex; align-items: center; gap: 8px; font-size: 10px; }
.data-overview-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 7px; margin-bottom: 18px; }
.data-overview-grid > div { min-width: 0; display: grid; gap: 2px; padding: 11px; border: 1px solid var(--border); border-radius: 9px; background: var(--surface-alt); }
.data-overview-grid strong { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 16px; }
.data-overview-grid span { color: var(--muted); font-size: 8px; }
.data-action-list { display: grid; }
.data-action-list article { min-height: 78px; display: grid; grid-template-columns: 41px minmax(0, 1fr) auto; align-items: center; gap: 13px; padding: 12px 0; border-top: 1px solid var(--border); }
.data-action-icon { width: 39px; height: 39px; display: grid; place-items: center; border-radius: 9px; color: var(--primary); background: color-mix(in srgb, var(--primary) 10%, var(--surface-alt)); }
.data-action-icon.danger { color: var(--danger); background: color-mix(in srgb, var(--danger) 9%, var(--surface-alt)); }
.data-action-list article > div { min-width: 0; }
.data-action-list strong { font-size: 12px; }
.data-action-list p { margin: 2px 0 0; color: var(--muted); font-size: 9px; }
.settings-save-bar { grid-column: 2; position: sticky; bottom: 15px; z-index: 20; min-height: 69px; display: flex; align-items: center; gap: 11px; padding: 11px 12px 11px 16px; border: 1px solid color-mix(in srgb, var(--primary) 32%, var(--border)); border-radius: 12px; background: color-mix(in srgb, var(--surface) 94%, transparent); box-shadow: var(--shadow-lg); backdrop-filter: blur(15px); }
.settings-save-bar > div { flex: 1; display: grid; }
.settings-save-bar strong { font-size: 11px; }
.settings-save-bar span { color: var(--muted); font-size: 8px; }
.not-found-view { display: grid; place-items: center; min-height: 80vh; }


/* Optional account identity */
.site-header-actions { display: flex; align-items: center; gap: 8px; }
.sidebar-account-host { margin-top: 10px; }
.account-control { width: 100%; min-height: 52px; display: grid; grid-template-columns: 34px minmax(0, 1fr) 15px; align-items: center; gap: 9px; padding: 7px 8px; border: 1px solid var(--border); border-radius: 10px; background: color-mix(in srgb, var(--surface-alt) 56%, transparent); color: var(--text); text-align: left; }
.account-control:hover { border-color: color-mix(in srgb, var(--primary) 45%, var(--border)); background: color-mix(in srgb, var(--surface-alt) 76%, transparent); }
.account-control.signed-in { border-color: color-mix(in srgb, var(--primary) 25%, var(--border)); }
.account-control-copy { min-width: 0; display: grid; gap: 1px; }
.account-control-copy strong, .account-control-copy small { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.account-control-copy strong { font-size: 10px; }
.account-control-copy small { color: var(--muted); font-size: 8px; }
.account-avatar { width: 34px; height: 34px; display: grid; place-items: center; flex: 0 0 auto; border-radius: 50%; background: color-mix(in srgb, var(--primary) 18%, var(--surface-alt)); color: var(--primary); font-size: 10px; font-weight: 850; letter-spacing: .04em; }
.account-avatar.guest-avatar { color: var(--muted); background: var(--surface-alt); }
.account-avatar.large { width: 48px; height: 48px; font-size: 14px; }
.account-avatar.xlarge { width: 62px; height: 62px; font-size: 18px; }
.account-control.compact { width: 38px; min-height: 38px; height: 38px; display: grid; grid-template-columns: 1fr; padding: 2px; border: 0; background: transparent; }
.account-control.compact .account-control-copy, .account-control.compact > .icon { display: none; }
.account-control.compact .account-avatar { width: 34px; height: 34px; }

.auth-dialog-content, .account-dialog-content { display: grid; gap: 15px; }
.auth-local-note { display: flex; align-items: flex-start; gap: 10px; padding: 12px; border: 1px solid var(--border); border-radius: 10px; background: color-mix(in srgb, var(--surface-alt) 56%, transparent); }
.auth-local-note > .icon { flex: 0 0 auto; margin-top: 1px; color: var(--success); }
.auth-local-note > div { display: grid; gap: 2px; }
.auth-local-note strong { font-size: 11px; }
.auth-local-note span { color: var(--muted); font-size: 10px; line-height: 1.5; }
.auth-provider-list { display: grid; gap: 9px; }
.auth-provider { min-height: 94px; display: grid; gap: 10px; padding: 12px; border: 1px solid var(--border); border-radius: 11px; background: color-mix(in srgb, var(--surface-alt) 38%, transparent); }
.auth-provider.unavailable { opacity: .68; }
.auth-provider.provider-error { border-color: color-mix(in srgb, var(--danger) 40%, var(--border)); }
.auth-provider-head { display: flex; align-items: center; gap: 9px; }
.auth-provider-head > div { display: grid; gap: 1px; }
.auth-provider-head strong { font-size: 12px; }
.auth-provider-head small { color: var(--muted); font-size: 9px; overflow-wrap: anywhere; }
.provider-badge { width: 29px; height: 29px; display: grid; place-items: center; border: 1px solid var(--border); border-radius: 8px; background: white; color: #202124; font-size: 14px; font-weight: 850; }
.provider-badge.apple { background: #000; color: #fff; font-size: 9px; }
.google-button-host { min-height: 40px; display: grid; place-items: center; overflow: hidden; }
.apple-signin-button { width: min(100%, 340px); min-height: 40px; justify-self: center; display: flex; align-items: center; justify-content: center; gap: 8px; padding: 0 16px; border: 1px solid #000; border-radius: 5px; background: #000; color: #fff; font: 600 14px -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; }
.apple-signin-button:hover:not(:disabled) { background: #1a1a1a; }
.apple-signin-button:disabled { opacity: .48; cursor: not-allowed; }
.apple-mark { font-size: 10px; }
.auth-divider { display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 10px; color: var(--muted); font-size: 9px; text-transform: uppercase; letter-spacing: .12em; }
.auth-divider::before, .auth-divider::after { content: ""; height: 1px; background: var(--border); }
.full-width { width: 100%; }
.auth-footnote { margin: -4px 0 0; color: var(--muted); font-size: 9px; line-height: 1.45; text-align: center; }
.account-dialog-profile { display: flex; align-items: center; gap: 13px; padding: 4px 2px; }
.account-dialog-profile > div { min-width: 0; display: grid; gap: 2px; }
.account-dialog-profile strong, .account-dialog-profile span { overflow-wrap: anywhere; }
.account-dialog-profile strong { font-size: 15px; }
.account-dialog-profile span { color: var(--muted); font-size: 11px; }
.account-dialog-profile small { color: var(--primary); font-size: 9px; font-weight: 750; }
.account-settings-body { padding-top: 1px; }
.account-profile-row { min-height: 74px; display: grid; grid-template-columns: 48px minmax(0, 1fr) auto; align-items: center; gap: 13px; }
.account-profile-row > div { min-width: 0; display: grid; gap: 2px; }
.account-profile-row strong { font-size: 13px; overflow-wrap: anywhere; }
.account-profile-row span { color: var(--muted); font-size: 10px; overflow-wrap: anywhere; }
.account-profile-row small { color: var(--primary); font-size: 9px; }

.report-list > article { padding: 11px 12px; border: 1px solid var(--border); border-radius: 8px; background: color-mix(in srgb, var(--surface-alt) 38%, transparent); }
.report-list > article.report-error { border-color: color-mix(in srgb, var(--danger) 34%, var(--border)); }
.report-list > article.report-warning { border-color: color-mix(in srgb, var(--warning) 34%, var(--border)); }
.report-list article strong { display: block; font-size: 11px; }
.report-list article p { margin: 3px 0 0; color: var(--muted); font-size: 10px; line-height: 1.45; }

@media (max-width: 1550px) {
  :root { --sidebar-width: 216px; --ad-width: 316px; }
  .app-ad-rail, .landing-ad-rail { padding-left: 8px; padding-right: 8px; }
  .hero-section { grid-template-columns: minmax(330px, .84fr) minmax(480px, 1.16fr); gap: 38px; }
  .hero-copy h1 { font-size: clamp(43px, 4.8vw, 68px); }
  .workflow-grid article { padding-left: 19px; padding-right: 19px; }
  .view, .library-view { padding-left: 24px; padding-right: 24px; }
  .theme-picker { grid-template-columns: repeat(4, 1fr); }
}

@media (max-width: 1320px) {
  .landing-main { padding-right: 25px; }
  .hero-section { grid-template-columns: 1fr; padding-top: 58px; }
  .hero-copy { max-width: 830px; }
  .hero-copy h1 { max-width: 760px; }
  .hero-product-frame { max-width: 850px; transform: none; }
  .workflow-grid { grid-template-columns: repeat(2, 1fr); }
  .workflow-grid article { min-height: 245px; }
  .feature-strip { grid-template-columns: repeat(2, 1fr); }
  .feature-strip > div:nth-child(2) { border-right: 0; }
  .feature-strip > div:nth-child(-n+2) { border-bottom: 1px solid var(--border); }
  .library-items.grid { grid-template-columns: repeat(2, minmax(210px, 1fr)); }
  .today-content-grid { grid-template-columns: 1fr; }
  .plan-status-list { grid-template-columns: repeat(2, 1fr); }
  .plan-status-row:nth-child(even) { border-left: 1px solid var(--border); }
  .plan-overview-grid { grid-template-columns: repeat(3, 1fr); }
  .plan-overview-primary { grid-column: 1 / -1; }
  .theme-picker { grid-template-columns: repeat(3, 1fr); }
  .data-overview-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 1180px) {
  .app-layout, .study-layout { grid-template-columns: var(--sidebar-width) minmax(0, 1fr); }
  .study-layout { grid-template-columns: minmax(0, 1fr); }
  .app-ad-rail, .study-layout > .app-ad-rail { display: none; }
  .selection-bar { right: 28px; }
  .landing-grid { grid-template-columns: minmax(0, 1fr); }
  .landing-main { padding-right: 0; }
  .landing-ad-rail { position: static; width: 100%; min-height: auto; display: grid; grid-template-columns: auto 300px auto 300px; align-items: end; gap: 10px 16px; border: 0; border-top: 1px solid var(--border); }
  .landing-ad-rail .ad-label.second { margin: 0 0 7px; }
  .landing-ad-rail .ad-slot-skyscraper { height: 250px; }
  .landing-ad-rail .ad-disclosure { display: none; }
  .split-section { gap: 50px; }
  .showcase-grid { grid-template-columns: repeat(2, 1fr); }
  .showcase-card:last-child { grid-column: 1 / -1; max-width: calc(50% - 8px); }
  .today-hero { align-items: flex-start; }
  .capacity-gauge { flex-direction: column; min-width: 175px; text-align: center; }
  .settings-form { grid-template-columns: 145px minmax(0, 1fr); }
  .settings-section { grid-column: 2; }
  .settings-save-bar { grid-column: 2; }
}

@media (max-width: 920px) {
  .site-header-actions { margin-left: auto; }
  :root { --sidebar-width: 260px; }
  .app-layout { display: block; min-height: 100vh; }
  .app-sidebar { position: fixed; left: 0; top: 0; z-index: 1000; width: var(--sidebar-width); transform: translateX(-105%); box-shadow: var(--shadow-lg); transition: transform .2s ease; }
  .app-layout.mobile-nav-open .app-sidebar { transform: translateX(0); }
  .app-layout.mobile-nav-open::after { content: ""; position: fixed; inset: 0; z-index: 900; background: rgb(0 0 0 / .58); }
  .app-center { min-height: 100vh; }
  .mobile-app-header { position: sticky; top: 0; z-index: 40; min-height: 58px; display: grid; grid-template-columns: 38px 1fr 38px; align-items: center; padding: 0 13px; border-bottom: 1px solid var(--border); background: color-mix(in srgb, var(--surface) 93%, transparent); backdrop-filter: blur(15px); }
  .mobile-brand { justify-self: center; display: inline-flex; align-items: center; gap: 7px; font-size: 14px; }
  .view, .library-view { padding: 24px 18px 100px; }
  .view-header { flex-direction: column; }
  .view-header-actions { justify-content: flex-start; }
  .selection-bar { left: 18px; right: 18px; }
  .site-header { min-height: 68px; }
  .site-nav { display: none; }
  .site-cta { margin-left: auto; }
  .hero-section { min-height: auto; padding: 52px 0; }
  .hero-product-frame { overflow-x: auto; }
  .mock-app { min-width: 630px; }
  .split-section { grid-template-columns: 1fr; }
  .split-visual { min-height: 390px; order: 2; }
  .workflow-grid { grid-template-columns: repeat(2, 1fr); }
  .library-metrics, .today-metrics, .session-metrics { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .library-toolbar { flex-wrap: wrap; }
  .library-toolbar .search-field { width: 100%; }
  .library-toolbar .toolbar-spacer { display: none; }
  .today-hero { flex-direction: column; }
  .capacity-gauge { width: 100%; flex-direction: row; text-align: left; }
  .explanation-grid { grid-template-columns: repeat(2, 1fr); }
  .explanation-grid > div:nth-child(2) { border-right: 0; }
  .explanation-grid > div:nth-child(-n+2) { border-bottom: 1px solid var(--border); }
  .plan-overview-grid { grid-template-columns: repeat(3, 1fr); }
  .active-session-grid { grid-template-columns: 1fr; }
  .settings-form { display: block; }
  .settings-section-nav { position: static; display: flex; overflow-x: auto; margin-bottom: 14px; }
  .settings-section-nav a { white-space: nowrap; }
  .settings-section { margin-bottom: 13px; }
  .settings-save-bar { bottom: 10px; }
  .study-header { grid-template-columns: auto minmax(0, 1fr) auto; }
  .study-brand { display: none; }
  .study-header-copy { justify-items: start; }
  .study-main { padding: 14px 14px 22px; }
}

@media (max-width: 720px) {
  .site-header-actions { gap: 5px; }
  .site-header-actions .button { min-height: 36px; padding: 7px 9px; font-size: 11px; }
  .account-profile-row { grid-template-columns: 48px minmax(0, 1fr); }
  .account-profile-row .button { grid-column: 1 / -1; width: 100%; }
  .site-header { width: min(100% - 24px, 1540px); }
  .site-brand { font-size: 16px; }
  .site-cta { min-height: 36px; padding: 7px 10px; font-size: 12px; }
  .landing-grid, .site-footer { width: min(100% - 24px, 1540px); }
  .hero-copy h1 { font-size: clamp(38px, 13vw, 58px); }
  .hero-copy > p { font-size: 15px; }
  .hero-actions .button { width: 100%; }
  .feature-strip { grid-template-columns: 1fr; }
  .feature-strip > div { border-right: 0; border-bottom: 1px solid var(--border); }
  .feature-strip > div:last-child { border-bottom: 0; }
  .workflow-grid, .showcase-grid { grid-template-columns: 1fr; }
  .showcase-card:last-child { grid-column: auto; max-width: none; }
  .section-block { padding: 78px 0; }
  .section-heading h2, .split-copy h2 { font-size: 34px; }
  .privacy-visual { min-height: 330px; }
  .final-cta { flex-direction: column; align-items: stretch; padding: 27px; }
  .final-cta .button { width: 100%; }
  .site-footer { flex-wrap: wrap; padding: 20px 0; }
  .site-footer > span { order: 3; width: 100%; margin-left: 0; }
  .landing-ad-rail { display: block; }
  .landing-ad-rail .ad-label.second, .landing-ad-rail .ad-slot-skyscraper { display: none; }
  .landing-ad-rail .ad-slot-rectangle { margin-bottom: 10px; }
  .view, .library-view { padding-left: 13px; padding-right: 13px; }
  .view-heading-copy h1 { font-size: 28px; }
  .view-header-actions { width: 100%; }
  .view-header-actions .button { flex: 1; }
  .metric-card { min-height: 98px; padding: 14px; }
  .metric-card strong { font-size: 21px; }
  .library-items.grid { grid-template-columns: 1fr; }
  .library-items.list .library-item { grid-template-columns: 48px minmax(0, 1fr) 40px; padding-left: 35px; }
  .library-items.list .deck-progress-mini, .library-items.list .quick-study { display: none; }
  .library-items.list .folder-item { grid-template-columns: 43px minmax(0, 1fr) 40px; }
  .library-items.list .folder-item .item-more { grid-column: 3; }
  .selection-bar { flex-direction: column; align-items: stretch; }
  .selection-bar > div { justify-content: space-between; }
  .selection-actions { display: grid !important; grid-template-columns: repeat(3, 1fr); }
  .selection-actions .button { width: 100%; }
  .deck-detail-layout { grid-template-columns: 1fr; }
  .deck-detail-visual { grid-template-columns: 160px 1fr; align-items: center; }
  .deck-detail-stats { grid-template-columns: repeat(2, 1fr); }
  .today-hero { padding: 23px; }
  .today-hero-copy h2 { font-size: 26px; }
  .today-metrics, .library-metrics, .session-metrics { grid-template-columns: 1fr 1fr; }
  .queue-row { grid-template-columns: 25px minmax(0, 1fr) auto; }
  .queue-kind { grid-column: 2; grid-row: 2; }
  .queue-row > div { grid-column: 2; grid-row: 1; }
  .queue-exam { grid-column: 3; grid-row: 1 / 3; }
  .plan-status-list { grid-template-columns: 1fr; }
  .plan-status-row:nth-child(even) { border-left: 0; }
  .plan-overview-grid { grid-template-columns: 1fr 1fr; }
  .plan-overview-primary { grid-column: 1 / -1; }
  .plan-overview-stat:last-child { grid-column: 1 / -1; }
  .plan-card-head { grid-template-columns: 58px minmax(0, 1fr); }
  .plan-date-tile { width: 56px; }
  .plan-card-actions { grid-column: 1 / -1; }
  .plan-card-actions .plan-study { flex: 1; }
  .plan-metric-row { grid-template-columns: repeat(3, 1fr); }
  .plan-metric-row > span:nth-child(3) { border-right: 0; }
  .plan-metric-row > span:nth-child(-n+3) { border-bottom: 1px solid var(--border); }
  .plan-metric-row > span:nth-child(4), .plan-metric-row > span:nth-child(5) { grid-column: span 1; }
  .form-grid.two-column, .settings-control-grid { grid-template-columns: 1fr; }
  .form-grid .span-2 { grid-column: auto; }
  .choice-card-grid { grid-template-columns: 1fr; }
  .detail-metric-grid { grid-template-columns: repeat(2, 1fr); }
  .session-history-row { grid-template-columns: 40px minmax(0, 1fr) 58px 36px; }
  .session-history-row .history-stat:nth-of-type(2), .session-history-row .history-stat:nth-of-type(3) { display: none; }
  .trash-row { grid-template-columns: 42px minmax(0, 1fr) 38px; }
  .trash-row .button { width: 38px; min-width: 38px; padding: 0; font-size: 0; }
  .trash-row .delete-button { grid-column: 3; }
  .theme-picker { grid-template-columns: repeat(2, 1fr); }
  .reinsertion-row { grid-template-columns: 27px minmax(0, 1fr) 35px; }
  .toggle-inline { display: none; }
  .inline-number { grid-column: 2; }
  .override-add-row { grid-template-columns: 1fr 100px; }
  .override-add-row .button { grid-column: 1 / -1; }
  .data-overview-grid { grid-template-columns: repeat(2, 1fr); }
  .data-action-list article { grid-template-columns: 39px minmax(0, 1fr); }
  .data-action-list article .button { grid-column: 1 / -1; width: 100%; }
  .settings-save-bar { flex-wrap: wrap; }
  .settings-save-bar > div { width: 100%; flex-basis: 100%; }
  .study-header { padding: 0 12px; gap: 8px; }
  .study-exit { font-size: 0; width: 38px; height: 38px; display: grid; place-items: center; }
  .study-header-actions a { display: none; }
  .study-progress-copy { min-width: 110px; display: grid; gap: 0; }
  .study-card-toolbar { align-items: flex-start; flex-direction: column; }
  .study-tools { width: 100%; justify-content: flex-end; }
  .study-card-stage { min-height: 400px; }
  .study-controls { grid-template-columns: 1fr 1fr; }
  .study-control.secondary { display: none; }
  .study-control { min-height: 62px; }
  .study-hints { display: none; }
  .completion-metrics { grid-template-columns: repeat(2, 1fr); }
  .completion-metrics > div:nth-child(2) { border-right: 0; }
  .completion-metrics > div:nth-child(-n+2) { border-bottom: 1px solid var(--border); }
  .study-completion { padding: 31px 20px; }
}

@media (max-width: 470px) {
  .site-header-actions .site-signin { display: none; }
  .button span { display: none; }
  .site-cta .icon { display: none; }
  .site-cta { font-size: 11px; }
  .hero-trust-row { display: grid; }
  .library-metrics, .today-metrics, .session-metrics { grid-template-columns: 1fr; }
  .metric-card { min-height: 88px; }
  .library-toolbar .compact-select { flex: 1; }
  .library-toolbar .compact-select select { width: 100%; }
  .selection-actions { grid-template-columns: repeat(2, 1fr); }
  .deck-detail-visual { grid-template-columns: 1fr; }
  .deck-detail-visual .deck-thumbnail { height: 145px; }
  .today-hero-actions .button { width: 100%; }
  .capacity-gauge { flex-direction: column; text-align: center; }
  .explanation-grid { grid-template-columns: 1fr; }
  .explanation-grid > div { border-right: 0; border-bottom: 1px solid var(--border); }
  .plan-overview-grid { grid-template-columns: 1fr; }
  .plan-overview-stat:last-child { grid-column: auto; }
  .plan-metric-row { grid-template-columns: repeat(2, 1fr); }
  .plan-metric-row > span { border-bottom: 1px solid var(--border); }
  .plan-metric-row > span:nth-child(even) { border-right: 0; }
  .plan-metric-row > span:last-child { grid-column: 1 / -1; border-bottom: 0; }
  .plan-card-foot { display: grid; gap: 6px; }
  .theme-picker { grid-template-columns: 1fr 1fr; }
  .weekday-row { align-items: flex-start; flex-direction: column; }
  .weekday-row .segmented-control { width: 100%; }
  .weekday-row .segmented-control button { flex: 1; }
  .settings-save-bar .button { flex: 1; }
  .study-header-copy strong { max-width: 170px; }
  .study-progress-row { grid-template-columns: minmax(0, 1fr) auto; }
  .study-progress-track { grid-column: 1 / -1; grid-row: 2; }
  .study-tools .remove-others { flex: 1; }
  .study-tools .remove-others { font-size: 0; }
  .study-tools .remove-others .icon { margin: auto; }
  .study-controls { grid-template-columns: 1fr 1fr; }
  .study-control { padding: 8px; gap: 7px; }
  .study-control .keycap { display: none; }
  .completion-actions { width: 100%; }
  .completion-actions .button { width: 100%; }
}

@media print {
  .app-sidebar, .app-ad-rail, .landing-ad-rail, .view-header-actions, .settings-save-bar, .selection-bar { display: none !important; }
  .app-layout { display: block; }
  body { background: white; color: black; }
  .panel, .metric-card { box-shadow: none; }
}

/* KramKing Web 0.3 study, practice-test, and deck-detail refinements */
.view-header-actions { flex-wrap: wrap; }
.modal.deck-detail-modal { width: min(1080px, 100%); max-height: min(900px, calc(100vh - 36px)); }
.deck-detail-modal .modal-header > div { min-width: 0; }
.deck-detail-modal .modal-header h2 { overflow-wrap: anywhere; }
.deck-detail-modal .modal-body { padding: 0; }

.deck-detail-shell { min-width: 0; }
.deck-detail-tabs { position: sticky; top: 0; z-index: 3; display: flex; gap: 4px; padding: 0 24px; border-bottom: 1px solid var(--border); background: color-mix(in srgb, var(--surface) 97%, var(--background)); }
.deck-detail-tabs button { min-height: 50px; display: inline-flex; align-items: center; gap: 7px; padding: 0 15px; border: 0; border-bottom: 2px solid transparent; background: transparent; color: var(--muted); font-weight: 780; }
.deck-detail-tabs button:hover { color: var(--text); }
.deck-detail-tabs button.active { color: var(--primary); border-bottom-color: var(--primary); }
.deck-detail-tabs button span { min-width: 19px; height: 19px; display: inline-grid; place-items: center; border-radius: 999px; background: color-mix(in srgb, var(--primary) 14%, var(--surface-alt)); font-size: 10px; }
.deck-detail-panel { padding: 24px; }
.deck-detail-panel[hidden] { display: none; }
.deck-overview-hero { display: grid; grid-template-columns: 180px minmax(0, 1fr) auto; align-items: center; gap: 22px; padding: 18px; border: 1px solid var(--border); border-radius: 13px; background: linear-gradient(120deg, color-mix(in srgb, var(--primary) 7%, var(--surface-alt)), var(--surface-alt)); }
.deck-overview-thumbnail .deck-thumbnail { height: 128px; border: 1px solid color-mix(in srgb, var(--border) 80%, transparent); border-radius: 10px; background: var(--surface); }
.deck-overview-thumbnail .deck-thumbnail img { width: 100%; height: 100%; object-fit: contain; }
.deck-overview-copy { min-width: 0; display: grid; justify-items: start; gap: 9px; }
.deck-overview-copy p { max-width: 610px; margin: 0; color: var(--text); font-size: 14px; line-height: 1.6; overflow-wrap: anywhere; }
.deck-overview-copy > small { color: var(--muted); }
.deck-overview-progress { display: flex; align-items: center; gap: 13px; min-width: 190px; padding-left: 20px; border-left: 1px solid var(--border); }
.deck-overview-progress > div { display: grid; }
.deck-overview-progress > div strong { font-size: 17px; }
.deck-overview-progress > div span { color: var(--muted); font-size: 11px; }
.deck-primary-actions { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 11px; margin-top: 18px; }
.deck-primary-action { min-height: 88px; display: flex; align-items: center; gap: 14px; padding: 16px 18px; border: 1px solid var(--border); border-radius: 12px; background: var(--surface-alt); color: var(--text); text-align: left; box-shadow: var(--shadow-sm); transition: transform .16s ease, border-color .16s ease, background .16s ease; }
.deck-primary-action:hover { transform: translateY(-1px); border-color: color-mix(in srgb, var(--primary) 65%, var(--border)); background: color-mix(in srgb, var(--surface-alt) 86%, var(--primary) 10%); }
.deck-primary-action.primary { border-color: color-mix(in srgb, var(--primary) 72%, var(--border)); background: var(--primary); color: color-mix(in srgb, var(--background) 92%, black); }
.deck-primary-action > span { display: grid; gap: 3px; }
.deck-primary-action strong { font-size: 16px; }
.deck-primary-action small { color: color-mix(in srgb, currentColor 72%, transparent); font-size: 11px; line-height: 1.35; }
.deck-secondary-actions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 9px; }
.deck-focus-heading { margin: 25px 0 10px; }
.deck-focus-heading h3, .deck-progress-intro h3, .deck-results-head h3 { margin: 3px 0 0; font-size: 19px; }
.deck-focus-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 9px; }
.deck-focus-action { min-height: 78px; display: grid; grid-template-columns: auto minmax(0, 1fr) auto; align-items: center; gap: 11px; padding: 13px; border: 1px solid var(--border); border-radius: 10px; background: color-mix(in srgb, var(--surface-alt) 82%, transparent); color: var(--text); text-align: left; }
.deck-focus-action:hover:not(:disabled) { border-color: var(--primary); background: color-mix(in srgb, var(--surface-alt) 88%, var(--primary) 8%); }
.deck-focus-action > span { min-width: 0; display: grid; gap: 3px; }
.deck-focus-action small { color: var(--muted); font-size: 10px; }
.trouble-definition { display: flex; align-items: flex-start; gap: 8px; margin-top: 10px; padding: 10px 12px; border: 1px solid color-mix(in srgb, var(--warning) 25%, var(--border)); border-radius: 9px; background: color-mix(in srgb, var(--warning) 5%, var(--surface)); color: var(--muted); font-size: 11px; line-height: 1.5; }
.trouble-definition svg { color: var(--warning); margin-top: 1px; }
.trouble-definition strong { color: var(--text); }
.deck-detail-footer { display: flex; justify-content: flex-end; gap: 8px; padding: 15px 24px 20px; border-top: 1px solid var(--border); background: color-mix(in srgb, var(--surface-alt) 35%, var(--surface)); }

.deck-progress-intro { display: flex; align-items: center; justify-content: space-between; gap: 22px; margin-bottom: 17px; }
.deck-progress-intro p, .deck-results-head p { max-width: 690px; margin: 6px 0 0; color: var(--muted); }
.deck-progress-ring { display: flex; align-items: center; gap: 10px; color: var(--muted); font-size: 11px; }
.deck-progress-metrics { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 8px; }
.deck-progress-metrics article { min-height: 93px; display: grid; grid-template-columns: auto 1fr; grid-template-rows: auto auto; align-content: center; column-gap: 9px; padding: 13px; border: 1px solid var(--border); border-radius: 10px; background: var(--surface-alt); }
.deck-progress-metrics article > span { grid-row: 1 / 3; width: 34px; height: 34px; display: grid; place-items: center; align-self: center; border-radius: 8px; color: var(--primary); background: color-mix(in srgb, var(--primary) 10%, var(--surface)); }
.deck-progress-metrics strong { align-self: end; font-size: 20px; }
.deck-progress-metrics small { color: var(--muted); font-size: 10px; }
.deck-progress-columns { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 13px; margin-top: 16px; }
.deck-progress-section { min-width: 0; padding: 16px; border: 1px solid var(--border); border-radius: 11px; background: color-mix(in srgb, var(--surface-alt) 45%, var(--surface)); }
.deck-progress-section .section-inline-head h3 { margin: 2px 0 0; font-size: 15px; }
.deck-missed-list, .deck-activity-list, .deck-test-results { display: grid; gap: 7px; }
.deck-missed-row { display: grid; grid-template-columns: 32px minmax(0, 1fr) auto; align-items: center; gap: 9px; min-height: 59px; padding: 9px; border: 1px solid var(--border); border-radius: 9px; background: var(--surface); }
.deck-missed-number { width: 28px; height: 28px; display: grid; place-items: center; border-radius: 7px; background: color-mix(in srgb, var(--danger) 10%, var(--surface-alt)); color: var(--danger); font-size: 10px; font-weight: 800; }
.deck-missed-row > div, .deck-activity-row > div, .deck-test-result-row > div { min-width: 0; display: grid; }
.deck-missed-row strong, .deck-activity-row strong, .deck-test-result-row strong { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 11px; }
.deck-missed-row small, .deck-activity-row small, .deck-test-result-row small { color: var(--muted); font-size: 9px; }
.deck-activity-row { min-height: 55px; display: grid; grid-template-columns: 34px minmax(0, 1fr) auto; align-items: center; gap: 9px; padding: 9px; border-bottom: 1px solid var(--border); }
.deck-activity-row:last-child { border-bottom: 0; }
.deck-activity-row > span { width: 31px; height: 31px; display: grid; place-items: center; border-radius: 8px; background: var(--surface-alt); color: var(--primary); }
.deck-activity-row > b { color: var(--muted); font-size: 11px; }
.deck-progress-empty { min-height: 170px; }
.deck-results-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 18px; margin-bottom: 15px; }
.deck-test-result-row { min-height: 68px; display: grid; grid-template-columns: 39px minmax(0, 1fr) auto auto; align-items: center; gap: 11px; padding: 11px 12px; border: 1px solid var(--border); border-radius: 10px; background: var(--surface-alt); }
.test-result-icon { width: 36px; height: 36px; display: grid; place-items: center; border-radius: 9px; color: var(--primary); background: color-mix(in srgb, var(--primary) 10%, var(--surface)); }
.test-result-icon.pass { color: var(--success); background: color-mix(in srgb, var(--success) 10%, var(--surface)); }
.test-result-icon.needs-work { color: var(--danger); background: color-mix(in srgb, var(--danger) 10%, var(--surface)); }
.deck-test-result-row > b { min-width: 78px; text-align: right; font-size: 12px; }

/* Card presentation: fixed semantic alignment and adaptive fitting. */
.study-card-stage { isolation: isolate; perspective: 1800px; }
.study-card-face { width: 100%; height: 100%; min-height: 0; position: relative; display: flex; flex-direction: column; overflow: hidden; background: transparent; }
.study-card-face.text-only .card-text-viewport { flex: 1; }
.study-card-face.visual-only .card-image-scroller { flex: 1; }
.study-card-face.mixed-content { display: grid; grid-template-columns: minmax(250px, .82fr) minmax(330px, 1.18fr); grid-template-rows: minmax(0, 1fr); }
.study-card-face.mixed-content .card-text-viewport, .study-card-face.mixed-content .card-image-scroller { min-width: 0; min-height: 0; }
.card-text-viewport { min-width: 0; min-height: 0; display: flex; align-items: center; overflow: hidden; padding: clamp(22px, 4.2vh, 52px) clamp(26px, 5vw, 74px); }
.card-text-viewport.needs-scroll { align-items: flex-start; overflow: auto; }
.card-side-text { width: 100%; min-height: 0; display: block; padding: 0; overflow: visible; overflow-wrap: anywhere; line-height: 1.47; color: var(--text); }
.card-side-text-front { text-align: center; }
.card-side-text-back { text-align: left; }
.card-side-text p, .card-side-text div, .card-side-text section, .card-side-text article { max-width: 100%; }
.card-side-text img { max-width: 100%; height: auto; }
.card-side-text [style*="position"] { position: static !important; inset: auto !important; }
.card-side-text [style*="width"] { max-width: 100% !important; }
.card-side-text ul, .card-side-text ol { display: inline-block; max-width: 100%; text-align: left; }
.card-side-text-back ul, .card-side-text-back ol { display: block; }
.study-card-face.mixed-content.face-front .card-text-viewport { padding-right: clamp(18px, 3vw, 42px); }
.study-card-face.mixed-content.face-back .card-text-viewport { padding-right: clamp(18px, 3vw, 42px); }
.card-image-scroller { width: 100%; height: 100%; min-height: 0; flex: 1; overflow: auto; display: grid; align-content: center; justify-items: center; padding: clamp(16px, 3vh, 34px); }
.card-image-gallery { width: var(--image-zoom, 100%); max-width: none; min-width: 0; min-height: 0; align-items: center; }
.card-image-gallery:not([data-zoomed="true"]) { height: 100%; }
.card-image-figure { width: 100%; min-width: 0; min-height: 0; height: 100%; align-content: center; }
.card-image-figure img { width: auto; height: auto; max-width: 100%; max-height: min(68vh, 690px); object-fit: contain; }
.study-card-face.mixed-content .card-image-figure img { max-height: min(58vh, 560px); }
.card-image-gallery.multiple { height: auto; grid-template-columns: repeat(auto-fit, minmax(min(220px, 100%), 1fr)); align-content: center; }
.occlusion-scroller { align-content: center; }
.occlusion-svg { width: var(--image-zoom, 100%); max-width: none; max-height: min(70vh, 720px); }
.preparing-card { position: absolute !important; inset: 0; visibility: hidden; pointer-events: none; }
.card-transition { position: absolute; inset: 0; overflow: hidden; transform-style: preserve-3d; }
.card-transition-layer { position: absolute; inset: 0; overflow: hidden; transform-origin: 50% 50%; backface-visibility: hidden; }
.card-transition-layer > .study-card-face { height: 100%; }

.animation-settings { margin-top: 18px; padding: 16px; border: 1px solid var(--border); border-radius: 11px; background: color-mix(in srgb, var(--surface-alt) 48%, var(--surface)); }
.animation-settings .subsection-head { margin-bottom: 7px; }
.animation-speed-grid input[type="range"] { width: 100%; accent-color: var(--primary); }
.animation-speed-grid .range-value { color: var(--primary); }

/* Practice-test workspace */
.practice-test-layout { min-height: 100vh; display: grid; grid-template-columns: minmax(0, 1fr) var(--ad-width); background: var(--background); }
.practice-test-center { min-width: 0; min-height: 100vh; display: flex; flex-direction: column; }
.practice-test-header { min-height: 70px; display: grid; grid-template-columns: auto minmax(0, 1fr) minmax(180px, 280px); align-items: center; gap: 18px; padding: 9px 22px; border-bottom: 1px solid var(--border); background: color-mix(in srgb, var(--surface) 94%, var(--background)); }
.practice-test-header-copy { min-width: 0; display: grid; justify-items: center; line-height: 1.3; }
.practice-test-header-copy strong { max-width: 600px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.practice-test-header-copy small { color: var(--muted); font-size: 10px; }
.practice-test-header-progress { display: grid; grid-template-columns: minmax(100px, 1fr) auto; align-items: center; gap: 10px; }
.practice-test-header-progress > div { height: 6px; overflow: hidden; border-radius: 999px; background: color-mix(in srgb, var(--border) 70%, transparent); }
.practice-test-header-progress > div span { display: block; height: 100%; border-radius: inherit; background: var(--primary); }
.practice-test-header-progress b { color: var(--muted); font-size: 11px; }
.practice-test-main { width: min(1180px, 100%); flex: 1; margin: 0 auto; padding: 20px 22px 30px; }
.practice-question-shell { min-height: calc(100vh - 122px); display: grid; grid-template-columns: 220px minmax(0, 1fr); overflow: hidden; }
.practice-question-nav { display: flex; flex-direction: column; min-width: 0; padding: 18px 15px; border-right: 1px solid var(--border); background: color-mix(in srgb, var(--surface-alt) 48%, var(--surface)); }
.practice-nav-head { display: grid; gap: 2px; margin-bottom: 13px; }
.practice-nav-head small { color: var(--muted); font-size: 10px; }
.practice-question-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 7px; align-content: start; max-height: calc(100vh - 250px); overflow: auto; padding: 2px; }
.practice-question-dot { min-width: 0; aspect-ratio: 1; position: relative; border: 1px solid var(--border); border-radius: 8px; background: var(--surface); color: var(--muted); font-size: 11px; font-weight: 780; }
.practice-question-dot:hover { border-color: var(--primary); color: var(--text); }
.practice-question-dot.answered { border-color: color-mix(in srgb, var(--success) 45%, var(--border)); background: color-mix(in srgb, var(--success) 9%, var(--surface)); color: var(--success); }
.practice-question-dot.current { border-color: var(--primary); box-shadow: 0 0 0 2px color-mix(in srgb, var(--primary) 20%, transparent); color: var(--primary); }
.practice-question-dot.flagged::after { content: ""; position: absolute; top: 4px; right: 4px; width: 5px; height: 5px; border-radius: 50%; background: var(--warning); }
.practice-question-dot > span { display: none; }
.practice-nav-legend { display: grid; gap: 6px; margin-top: auto; padding-top: 18px; color: var(--muted); font-size: 9px; }
.practice-nav-legend span { display: flex; align-items: center; gap: 7px; }
.practice-nav-legend i { width: 9px; height: 9px; border: 1px solid var(--border); border-radius: 3px; }
.practice-nav-legend i.answered { border-color: var(--success); background: color-mix(in srgb, var(--success) 20%, transparent); }
.practice-nav-legend i.flagged { border-color: var(--warning); background: var(--warning); }
.practice-question-workspace { min-width: 0; display: flex; flex-direction: column; }
.practice-question-toolbar { min-height: 65px; display: flex; align-items: center; justify-content: space-between; gap: 14px; padding: 12px 18px; border-bottom: 1px solid var(--border); }
.practice-question-toolbar > div { display: grid; gap: 3px; }
.practice-question-toolbar > div strong { font-size: 11px; color: var(--muted); }
.practice-flag.active { color: var(--warning); border-color: color-mix(in srgb, var(--warning) 55%, var(--border)); }
.practice-prompt-stage { min-height: 270px; height: clamp(280px, 42vh, 470px); position: relative; display: flex; overflow: hidden; border-bottom: 1px solid var(--border); background: radial-gradient(circle at center, color-mix(in srgb, var(--primary) 4%, transparent), transparent 55%); }
.practice-prompt-card { height: 100%; }
.practice-prompt-card.mixed-content { grid-template-columns: minmax(210px, .8fr) minmax(280px, 1.2fr); }
.practice-response-area { padding: 18px; }
.practice-choice-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 9px; }
.practice-choice { min-height: 64px; display: grid; grid-template-columns: 24px minmax(0, 1fr); align-items: center; gap: 11px; padding: 12px; border: 1px solid var(--border); border-radius: 10px; background: var(--surface-alt); cursor: pointer; transition: border-color .15s ease, background .15s ease, transform .15s ease; }
.practice-choice:hover { transform: translateY(-1px); border-color: color-mix(in srgb, var(--primary) 60%, var(--border)); }
.practice-choice.selected { border-color: var(--primary); background: color-mix(in srgb, var(--primary) 10%, var(--surface-alt)); box-shadow: 0 0 0 2px color-mix(in srgb, var(--primary) 13%, transparent); }
.practice-choice input { position: absolute; opacity: 0; pointer-events: none; }
.practice-choice-marker { width: 20px; height: 20px; position: relative; border: 2px solid var(--border); border-radius: 50%; background: var(--surface); }
.practice-choice.selected .practice-choice-marker { border-color: var(--primary); }
.practice-choice.selected .practice-choice-marker::after { content: ""; position: absolute; inset: 4px; border-radius: 50%; background: var(--primary); }
.practice-choice-content { min-width: 0; display: flex; align-items: center; gap: 12px; }
.practice-choice-text { overflow-wrap: anywhere; }
.practice-choice-content img { width: auto; max-width: 160px; max-height: 100px; object-fit: contain; border-radius: 6px; }
.practice-written-field { display: grid; gap: 8px; }
.practice-written-field > span { font-weight: 750; }
.practice-written-field textarea { resize: vertical; min-height: 140px; line-height: 1.5; }
.practice-written-field small { color: var(--muted); }
.practice-question-actions { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 12px; margin-top: auto; padding: 14px 18px; border-top: 1px solid var(--border); }
.practice-save-state { justify-self: center; display: inline-flex; align-items: center; gap: 5px; color: var(--muted); font-size: 10px; }
.practice-save-state svg { color: var(--success); }

.practice-result-hero { display: grid; grid-template-columns: auto minmax(0, 1fr) auto; align-items: center; gap: 22px; padding: 22px; margin-bottom: 14px; }
.practice-result-score { width: 128px; height: 128px; display: grid; place-content: center; justify-items: center; border-radius: 50%; background: conic-gradient(var(--primary) calc(var(--score, 100) * 1%), color-mix(in srgb, var(--border) 60%, transparent) 0); position: relative; overflow: hidden; }
.practice-result-score::before { content: ""; position: absolute; inset: 8px; border-radius: 50%; background: var(--surface); }
.practice-result-score strong, .practice-result-score span { z-index: 1; }
.practice-result-score strong { font-size: 29px; }
.practice-result-score span { color: var(--muted); font-size: 9px; }
.practice-result-copy h1 { margin: 3px 0 5px; font-size: 25px; overflow-wrap: anywhere; }
.practice-result-copy p { margin: 0; color: var(--muted); }
.practice-result-actions { display: grid; gap: 7px; }
.practice-result-list { display: grid; gap: 9px; }
.practice-result-item { overflow: hidden; }
.practice-result-item > summary { list-style: none; min-height: 68px; display: grid; grid-template-columns: 36px minmax(0, 1fr) auto auto 20px; align-items: center; gap: 10px; padding: 10px 14px; cursor: pointer; }
.practice-result-item > summary::-webkit-details-marker { display: none; }
.practice-result-item > summary > span:nth-child(2) { min-width: 0; display: grid; }
.practice-result-item > summary small { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: var(--muted); font-size: 10px; }
.practice-result-item > summary > svg { transition: transform .16s ease; }
.practice-result-item[open] > summary > svg { transform: rotate(180deg); }
.practice-result-status { width: 33px; height: 33px; display: grid; place-items: center; border-radius: 8px; }
.practice-result-item.correct .practice-result-status { color: var(--success); background: color-mix(in srgb, var(--success) 10%, var(--surface-alt)); }
.practice-result-item.incorrect .practice-result-status { color: var(--danger); background: color-mix(in srgb, var(--danger) 10%, var(--surface-alt)); }
.practice-result-detail { display: grid; gap: 12px; padding: 0 14px 15px 60px; border-top: 1px solid var(--border); }
.practice-review-prompt { min-height: 160px; max-height: 310px; position: relative; overflow: hidden; margin-top: 13px; border: 1px solid var(--border); border-radius: 9px; background: var(--surface-alt); }
.practice-review-card { min-height: 160px; height: 100%; }
.practice-answer-comparison { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
.practice-answer-comparison article { display: grid; gap: 4px; padding: 12px; border: 1px solid var(--border); border-radius: 9px; background: var(--surface-alt); }
.practice-answer-comparison article span { color: var(--muted); font-size: 9px; text-transform: uppercase; letter-spacing: .08em; }
.practice-answer-comparison article.correct strong { color: var(--success); }
.practice-answer-comparison article.incorrect strong { color: var(--danger); }
.practice-note-heading { display: flex; align-items: center; gap: 7px; margin-bottom: 7px; color: var(--primary); }
.practice-note-card { min-height: 130px; max-height: 320px; border: 1px solid var(--border); border-radius: 9px; background: color-mix(in srgb, var(--primary) 4%, var(--surface-alt)); }

@media (max-width: 980px) {
  .study-card-face.mixed-content, .practice-prompt-card.mixed-content { grid-template-columns: 1fr; grid-template-rows: minmax(110px, .55fr) minmax(190px, 1fr); }
  .study-card-face.mixed-content .card-text-viewport { padding-top: 20px; padding-bottom: 12px; }
  .deck-overview-hero { grid-template-columns: 145px minmax(0, 1fr); }
  .deck-overview-progress { grid-column: 1 / -1; justify-content: center; padding: 12px 0 0; border-left: 0; border-top: 1px solid var(--border); }
  .deck-progress-metrics { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .deck-progress-columns { grid-template-columns: 1fr; }
  .practice-test-layout { grid-template-columns: minmax(0, 1fr); }
  .practice-test-layout > .app-ad-rail { display: none; }
}

@media (max-width: 760px) {
  .modal.deck-detail-modal { width: 100%; max-height: calc(100vh - 12px); border-radius: 14px 14px 0 0; align-self: end; }
  .deck-detail-tabs { overflow-x: auto; padding: 0 12px; }
  .deck-detail-tabs button { white-space: nowrap; }
  .deck-detail-panel { padding: 15px; }
  .deck-overview-hero { grid-template-columns: 105px minmax(0, 1fr); gap: 13px; padding: 13px; }
  .deck-overview-thumbnail .deck-thumbnail { height: 96px; }
  .deck-overview-copy p { font-size: 12px; }
  .deck-primary-actions, .deck-focus-grid { grid-template-columns: 1fr; }
  .deck-primary-action { min-height: 76px; }
  .deck-progress-intro, .deck-results-head { align-items: flex-start; flex-direction: column; }
  .deck-progress-ring { align-self: center; }
  .deck-detail-footer { position: sticky; bottom: 0; z-index: 3; padding: 11px 15px; }
  .deck-detail-footer .button { flex: 1; }
  .deck-test-result-row { grid-template-columns: 36px minmax(0, 1fr) auto; }
  .deck-test-result-row > b { display: none; }
  .practice-test-header { grid-template-columns: auto minmax(0, 1fr); padding: 8px 12px; }
  .practice-test-header-copy { justify-items: start; }
  .practice-test-header-progress { grid-column: 1 / -1; }
  .practice-test-main { padding: 12px; }
  .practice-question-shell { min-height: calc(100vh - 126px); grid-template-columns: 1fr; }
  .practice-question-nav { padding: 11px; border-right: 0; border-bottom: 1px solid var(--border); }
  .practice-nav-head, .practice-nav-legend { display: none; }
  .practice-question-grid { grid-template-columns: repeat(auto-fit, 34px); grid-auto-flow: column; grid-auto-columns: 34px; max-height: none; overflow-x: auto; }
  .practice-question-dot { width: 34px; height: 34px; aspect-ratio: auto; }
  .practice-prompt-stage { height: clamp(260px, 38vh, 390px); }
  .practice-choice-list { grid-template-columns: 1fr; }
  .practice-question-actions { grid-template-columns: 1fr 1fr; }
  .practice-save-state { display: none; }
  .practice-result-hero { grid-template-columns: 100px minmax(0, 1fr); padding: 15px; }
  .practice-result-score { width: 96px; height: 96px; }
  .practice-result-actions { grid-column: 1 / -1; grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .practice-result-actions .button:first-child:last-child { grid-column: 1 / -1; }
  .practice-result-item > summary { grid-template-columns: 32px minmax(0, 1fr) auto 18px; }
  .practice-result-item > summary .status-pill { display: none; }
  .practice-result-detail { padding-left: 14px; }
  .practice-answer-comparison { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .deck-overview-hero { grid-template-columns: 1fr; }
  .deck-overview-thumbnail .deck-thumbnail { height: 130px; }
  .deck-overview-progress { grid-column: auto; }
  .deck-progress-metrics { grid-template-columns: 1fr 1fr; }
  .deck-missed-row { grid-template-columns: 30px minmax(0, 1fr); }
  .deck-missed-row .button { grid-column: 2; justify-self: start; }
  .deck-detail-footer { display: grid; grid-template-columns: 1fr; }
  .practice-test-header .practice-exit { width: 38px; padding: 0; font-size: 0; }
  .practice-test-header-copy strong { max-width: 210px; }
  .practice-question-toolbar { align-items: flex-start; }
  .practice-question-toolbar .practice-flag { width: 38px; padding: 0; font-size: 0; }
  .practice-question-actions .button { padding-left: 8px; padding-right: 8px; }
  .practice-result-hero { grid-template-columns: 1fr; justify-items: center; text-align: center; }
  .practice-result-actions { width: 100%; grid-template-columns: 1fr; }
  .practice-result-item > summary { grid-template-columns: 32px minmax(0, 1fr) auto 18px; padding: 9px; }
}

/* Mixed-card fitting correction */
.card-side-text {
  overflow-wrap: break-word;
  word-break: normal;
  hyphens: auto;
  white-space: normal;
}
.study-card-face.mixed-content .card-text-viewport {
  padding: clamp(18px, 3vh, 36px) clamp(20px, 2.8vw, 38px);
}

/* v0.4.0 fixed advertising rail: no nested scroll surface. */
.app-ad-rail,
.landing-ad-rail {
  height: auto;
  min-height: 100dvh;
  overflow: visible;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  padding: 16px;
}
.app-ad-rail { position: sticky; top: 0; }
.landing-ad-rail { position: sticky; top: 0; }
.ad-slot { position: relative; flex: 0 0 auto; margin: 0; }
.ad-slot-skyscraper { height: 600px; }
.ad-corner-label {
  position: absolute;
  top: 7px;
  right: 8px;
  max-width: none !important;
  color: color-mix(in srgb, var(--muted) 72%, transparent);
  font-size: 8px !important;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.app-ad-rail.single-ad,
.study-layout > .app-ad-rail,
.practice-test-layout > .app-ad-rail { justify-content: flex-start; }

.trouble-threshold-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 150px auto auto;
  align-items: end;
  gap: 14px;
  margin: 16px 0 20px;
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: color-mix(in srgb, var(--surface-alt) 52%, var(--surface));
}
.trouble-threshold-panel h3 { margin: 3px 0 4px; }
.trouble-threshold-panel p { margin: 0; color: var(--muted); font-size: 11px; line-height: 1.5; }
.trouble-threshold-panel label { display: grid; gap: 6px; color: var(--muted); font-size: 10px; font-weight: 750; }
.trouble-threshold-panel input { width: 100%; }
.trouble-threshold-count { align-self: center; color: var(--muted); font-size: 11px; white-space: nowrap; }
@media (max-width: 780px) {
  .trouble-threshold-panel { grid-template-columns: 1fr 1fr; align-items: end; }
  .trouble-threshold-panel > div { grid-column: 1 / -1; }
}
@media (max-width: 480px) {
  .trouble-threshold-panel { grid-template-columns: 1fr; }
}

/* v0.4.0 desktop-compatible study card composition. */
.study-card-stage {
  perspective: 1800px;
  transform-style: preserve-3d;
  contain: layout paint;
}
.study-card-face {
  box-sizing: border-box;
  width: 100%;
  height: 100%;
  min-width: 0;
  min-height: 0;
  display: flex;
  overflow: hidden;
}
.study-card-face.mixed-content {
  display: grid;
  grid-template-columns: minmax(220px, 38fr) minmax(320px, 62fr);
  grid-template-rows: minmax(0, 1fr);
}
.card-text-viewport {
  box-sizing: border-box;
  width: 100%;
  height: 100%;
  min-width: 0;
  min-height: 0;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding: clamp(24px, 4.5vh, 58px) clamp(30px, 5.4vw, 82px);
  scrollbar-gutter: stable;
}
.study-card-face.mixed-content .card-text-viewport {
  padding: clamp(20px, 3.5vh, 42px) clamp(24px, 3.2vw, 46px);
  border-right: 1px solid color-mix(in srgb, var(--border) 65%, transparent);
}
.card-text-viewport.needs-scroll {
  align-items: flex-start;
  overflow: auto;
  overscroll-behavior: contain;
}
.card-side-text {
  box-sizing: border-box;
  width: 100%;
  max-width: 100%;
  margin: 0;
  padding: 0;
  color: var(--text);
  line-height: 1.42;
  word-break: normal;
  overflow-wrap: break-word;
  hyphens: manual;
  white-space: normal;
  font-kerning: normal;
  text-rendering: optimizeLegibility;
}
.card-side-text-front,
.face-front .card-side-text { text-align: center !important; }
.card-side-text-back,
.face-back .card-side-text { text-align: left !important; }
.card-side-text > :first-child { margin-top: 0; }
.card-side-text > :last-child { margin-bottom: 0; }
.card-side-text p,
.card-side-text div,
.card-side-text section,
.card-side-text article,
.card-side-text table { max-width: 100% !important; }
.card-side-text table { width: auto; border-collapse: collapse; }
.card-side-text td,
.card-side-text th { padding: .24em .45em; }
.card-side-text [align],
.card-side-text [style] { text-align: inherit !important; }
.card-image-scroller {
  box-sizing: border-box;
  width: 100%;
  height: 100%;
  min-width: 0;
  min-height: 0;
  display: grid;
  place-items: center;
  overflow: auto;
  padding: clamp(14px, 2.7vh, 34px);
  overscroll-behavior: contain;
  touch-action: pan-x pan-y;
}
.card-image-gallery {
  box-sizing: border-box;
  width: var(--image-zoom, 100%);
  height: var(--image-zoom, 100%);
  min-width: 0;
  min-height: 0;
  display: grid;
  place-items: center;
  gap: 14px;
}
.card-image-gallery.multiple {
  height: auto;
  grid-template-columns: repeat(auto-fit, minmax(min(230px, 100%), 1fr));
}
.card-image-figure {
  box-sizing: border-box;
  width: 100%;
  height: 100%;
  min-width: 0;
  min-height: 0;
  margin: 0;
  display: grid;
  place-items: center;
  align-content: center;
}
.card-image-figure img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}
.card-image-figure figcaption { margin-top: 8px; color: var(--muted); font-size: 10px; text-align: center; }
.occlusion-svg {
  display: block;
  width: var(--image-zoom, 100%);
  height: var(--image-zoom, 100%);
  max-width: none;
  max-height: none;
}
.card-transition {
  position: absolute;
  inset: 0;
  overflow: hidden;
  perspective: 1800px;
  transform-style: preserve-3d;
  isolation: isolate;
}
.card-transition-layer {
  position: absolute;
  inset: 0;
  overflow: hidden;
  transform-origin: 50% 50%;
  transform-style: preserve-3d;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  outline: 0;
  will-change: transform, opacity, filter;
}
.card-transition-layer > .study-card-face { height: 100%; }
.card-transition-shadow {
  position: absolute;
  z-index: 1;
  left: 8%;
  right: 8%;
  bottom: -18px;
  height: 17px;
  border-radius: 50%;
  background: rgb(0 0 0 / .62);
  pointer-events: none;
  will-change: transform, opacity, filter;
}

@media (max-width: 820px) {
  .study-card-face.mixed-content {
    grid-template-columns: 1fr;
    grid-template-rows: minmax(120px, 38fr) minmax(220px, 62fr);
  }
  .study-card-face.mixed-content .card-text-viewport {
    border-right: 0;
    border-bottom: 1px solid color-mix(in srgb, var(--border) 65%, transparent);
    padding: 20px 24px;
  }
}

/* v0.4.0 Community, sharing, and build-identification surfaces. */
.sidebar-version {
  display: block;
  padding: 4px 14px 13px;
  color: var(--muted);
  font-size: 9px;
  letter-spacing: .05em;
  text-align: center;
}
.community-view { display: grid; gap: 16px; min-width: 0; }
.community-pane { min-width: 0; display: grid; gap: 16px; }
.community-tabs {
  min-width: 0;
  display: flex;
  align-items: stretch;
  gap: 4px;
  overflow-x: auto;
  padding: 5px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface);
  scrollbar-width: thin;
}
.community-tabs button {
  min-width: max-content;
  flex: 1 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 43px;
  padding: 8px 14px;
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-size: 11px;
  font-weight: 760;
  cursor: pointer;
}
.community-tabs button:hover { color: var(--text); background: var(--surface-alt); }
.community-tabs button.active { color: color-mix(in srgb, var(--background) 92%, black); background: var(--primary); box-shadow: var(--shadow-sm); }
.community-tabs button small {
  display: grid;
  place-items: center;
  min-width: 20px;
  height: 20px;
  padding: 0 5px;
  border-radius: 999px;
  background: color-mix(in srgb, currentColor 14%, transparent);
  color: inherit;
  font-size: 9px;
}
.community-profile-strip {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto auto auto;
  align-items: center;
  gap: 14px;
  padding: 14px 17px;
}
.community-profile-strip > div:nth-child(2) { min-width: 0; display: grid; gap: 2px; }
.community-profile-strip > div:nth-child(2) strong { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.community-profile-strip > div:nth-child(2) small { color: var(--muted); font-size: 10px; }
.community-profile-stat { min-width: 68px; display: grid; justify-items: center; padding: 5px 11px; border-left: 1px solid var(--border); }
.community-profile-stat strong { font-size: 18px; }
.community-profile-stat small { color: var(--muted); font-size: 9px; }
.community-avatar {
  flex: 0 0 auto;
  width: 39px;
  height: 39px;
  display: grid;
  place-items: center;
  overflow: hidden;
  border: 1px solid color-mix(in srgb, var(--primary) 42%, var(--border));
  border-radius: 50%;
  background: color-mix(in srgb, var(--primary) 13%, var(--surface-alt));
  color: var(--primary);
  font-size: 12px;
  font-weight: 850;
  letter-spacing: .03em;
}
.community-avatar-small { width: 31px; height: 31px; font-size: 9px; }
.community-avatar-large { width: 53px; height: 53px; font-size: 15px; }
.community-avatar img { width: 100%; height: 100%; object-fit: cover; }
.community-two-column { min-width: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.community-section { min-width: 0; padding: 18px; }
.community-section .section-heading { margin-bottom: 15px; }
.community-section .section-heading p { max-width: 650px; margin: 4px 0 0; color: var(--muted); font-size: 11px; line-height: 1.55; }
.community-section .section-heading > small { align-self: center; color: var(--muted); font-size: 10px; }
.community-person-search .search-field { grid-template-columns: auto minmax(0, 1fr) auto; }
.community-person-search .search-field kbd { display: none; }
.community-search-results,
.community-person-list { display: grid; gap: 8px; margin-top: 12px; }
.community-person-row {
  min-width: 0;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 10px;
  padding: 9px 10px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: color-mix(in srgb, var(--surface-alt) 55%, var(--surface));
}
.community-person-copy { min-width: 0; display: grid; gap: 2px; }
.community-person-copy strong { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 11px; }
.community-person-copy small { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: var(--muted); font-size: 9px; }
.subtle-empty { margin: 9px 0; padding: 14px; color: var(--muted); font-size: 10px; text-align: center; border: 1px dashed var(--border); border-radius: 9px; }
.community-friend-grid,
.community-member-grid { min-width: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 10px; }
.community-friend-card {
  min-width: 0;
  position: relative;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
  gap: 11px;
  padding: 13px;
  border: 1px solid var(--border);
  border-radius: 11px;
  background: var(--surface-alt);
}
.community-friend-card > div { min-width: 0; display: grid; gap: 2px; }
.community-friend-card > div strong,
.community-friend-card > div small { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.community-friend-card > div small { color: var(--muted); font-size: 9px; }
.community-friend-card .message-friend { grid-column: 1 / -1; }
.community-friend-card .remove-friend { position: absolute; top: 7px; right: 7px; }
.community-wide-empty { grid-column: 1 / -1; }
.community-auth-panel { padding: 18px; }
.community-auth-copy { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 16px; align-items: start; }
.community-auth-copy h2 { margin: 3px 0 6px; font-size: 18px; }
.community-auth-copy p { max-width: 760px; margin: 0; color: var(--muted); font-size: 11px; line-height: 1.55; }
.community-demo-login {
  display: grid;
  grid-template-columns: minmax(190px, 1fr) minmax(180px, 1fr) minmax(210px, 1fr) auto;
  align-items: end;
  gap: 10px;
  margin-top: 16px;
  padding-top: 15px;
  border-top: 1px solid var(--border);
}
.community-demo-login > div { display: grid; gap: 3px; align-self: center; }
.community-demo-login > div small { color: var(--muted); font-size: 9px; line-height: 1.4; }
.community-messages-layout {
  min-height: min(650px, calc(100vh - 235px));
  display: grid;
  grid-template-columns: 270px minmax(0, 1fr);
  overflow: hidden;
}
.conversation-list { min-width: 0; overflow-y: auto; border-right: 1px solid var(--border); background: color-mix(in srgb, var(--surface-alt) 48%, var(--surface)); }
.conversation-heading { padding: 16px 15px 11px; }
.conversation-heading h2 { margin: 3px 0 0; font-size: 17px; }
.conversation-row {
  width: 100%;
  min-width: 0;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 9px;
  padding: 10px 12px;
  border: 0;
  border-top: 1px solid color-mix(in srgb, var(--border) 58%, transparent);
  background: transparent;
  color: var(--text);
  text-align: left;
  cursor: pointer;
}
.conversation-row:hover { background: var(--surface-alt); }
.conversation-row.active { background: color-mix(in srgb, var(--primary) 10%, var(--surface-alt)); box-shadow: inset 3px 0 var(--primary); }
.conversation-row > span:nth-child(2) { min-width: 0; display: grid; gap: 2px; }
.conversation-row strong,
.conversation-row small { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.conversation-row strong { font-size: 10px; }
.conversation-row small { color: var(--muted); font-size: 9px; }
.conversation-row b { min-width: 20px; height: 20px; display: grid; place-items: center; border-radius: 999px; background: var(--primary); color: color-mix(in srgb, var(--background) 92%, black); font-size: 8px; }
.message-thread-host { min-width: 0; min-height: 0; display: flex; flex-direction: column; }
.message-thread-header { min-height: 66px; display: flex; align-items: center; gap: 10px; padding: 10px 16px; border-bottom: 1px solid var(--border); }
.message-thread-header > div { display: grid; gap: 2px; }
.message-thread-header small { color: var(--muted); font-size: 9px; }
.message-thread { min-height: 0; flex: 1; display: flex; flex-direction: column; gap: 8px; overflow-y: auto; padding: 17px; }
.direct-message { max-width: min(72%, 620px); display: grid; gap: 4px; padding: 9px 12px; border: 1px solid var(--border); border-radius: 12px; background: var(--surface-alt); }
.direct-message.mine { align-self: flex-end; border-bottom-right-radius: 3px; background: color-mix(in srgb, var(--primary) 13%, var(--surface-alt)); border-color: color-mix(in srgb, var(--primary) 35%, var(--border)); }
.direct-message.theirs { align-self: flex-start; border-bottom-left-radius: 3px; }
.direct-message p { margin: 0; font-size: 11px; line-height: 1.5; overflow-wrap: anywhere; }
.direct-message small { color: var(--muted); font-size: 8px; }
.message-composer { display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: end; gap: 9px; padding: 12px; border-top: 1px solid var(--border); }
.message-composer textarea { min-height: 48px; max-height: 150px; resize: vertical; }
.message-thread-empty { flex: 1; display: grid; place-content: center; justify-items: center; gap: 5px; padding: 30px; color: var(--muted); text-align: center; }
.message-thread-empty h3,
.message-thread-empty p { margin: 0; }
.message-thread-empty.compact { min-height: 200px; }
.community-group-grid { min-width: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(285px, 1fr)); gap: 11px; }
.community-group-card {
  min-width: 0;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 12px;
  padding: 15px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface-alt);
  color: var(--text);
  text-decoration: none;
  transition: transform .15s ease, border-color .15s ease, box-shadow .15s ease;
}
.community-group-card:hover { transform: translateY(-2px); border-color: color-mix(in srgb, var(--primary) 55%, var(--border)); box-shadow: var(--shadow-sm); }
.community-group-mark,
.community-deck-icon {
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  border-radius: 11px;
  background: color-mix(in srgb, var(--primary) 12%, var(--surface));
  color: var(--primary);
}
.community-group-card > div:nth-child(2) { min-width: 0; }
.community-group-card h3 { margin: 3px 0 4px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 14px; }
.community-group-card p { min-height: 2.8em; margin: 0 0 6px; color: var(--muted); font-size: 10px; line-height: 1.4; }
.community-group-card small { color: var(--muted); font-size: 9px; }
.community-explainer-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0; padding: 0; overflow: hidden; }
.community-explainer-grid article { min-width: 0; display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 11px; padding: 16px; }
.community-explainer-grid article + article { border-left: 1px solid var(--border); }
.community-explainer-grid svg { color: var(--primary); }
.community-explainer-grid strong { font-size: 11px; }
.community-explainer-grid p { margin: 3px 0 0; color: var(--muted); font-size: 9px; line-height: 1.45; }
.community-deck-grid { min-width: 0; display: grid; gap: 10px; }
.community-deck-card {
  min-width: 0;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 13px;
  padding: 14px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface-alt);
}
.community-deck-copy { min-width: 0; }
.community-deck-copy h3 { margin: 4px 0 3px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 13px; }
.community-deck-copy p { margin: 0 0 6px; color: var(--muted); font-size: 10px; line-height: 1.45; }
.community-deck-copy > small { color: var(--muted); font-size: 9px; }
.community-deck-access { display: inline-flex; align-items: center; gap: 5px; color: var(--muted); font-size: 8px; font-weight: 780; text-transform: uppercase; letter-spacing: .05em; }
.community-deck-access.public { color: var(--success); }
.community-deck-actions { display: flex; align-items: center; gap: 7px; flex-wrap: wrap; justify-content: flex-end; }
.community-member-card {
  min-width: 0;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 10px;
  padding: 11px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface-alt);
}
.community-member-card > div { min-width: 0; display: grid; }
.community-member-card strong,
.community-member-card small { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.community-member-card small { color: var(--muted); font-size: 9px; }
.community-member-card > span:last-child { padding: 4px 7px; border-radius: 999px; background: var(--surface); color: var(--muted); font-size: 8px; text-transform: capitalize; }
.group-capacity { height: 7px; overflow: hidden; margin-top: 15px; border-radius: 999px; background: color-mix(in srgb, var(--border) 70%, transparent); }
.group-capacity span { display: block; width: var(--group-capacity, 0%); height: 100%; border-radius: inherit; background: var(--primary); }
.group-hero {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 17px;
  padding: 19px;
}
.group-hero-mark { width: 64px; height: 64px; display: grid; place-items: center; border-radius: 15px; color: var(--primary); background: color-mix(in srgb, var(--primary) 13%, var(--surface-alt)); }
.group-hero-copy { min-width: 0; }
.group-hero-copy h1 { margin: 4px 0 5px; overflow-wrap: anywhere; font-size: clamp(21px, 2.4vw, 30px); }
.group-hero-copy p { max-width: 760px; margin: 0 0 6px; color: var(--muted); font-size: 11px; line-height: 1.5; }
.group-hero-copy small { color: var(--muted); font-size: 9px; text-transform: capitalize; }
.group-hero-actions { max-width: 370px; display: flex; justify-content: flex-end; gap: 8px; flex-wrap: wrap; }
.community-public-notice { margin: 0; }
.group-feed { padding: 18px; }
.group-post-composer { display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: end; gap: 10px; margin-bottom: 16px; padding: 12px; border: 1px solid var(--border); border-radius: 11px; background: var(--surface-alt); }
.group-post-composer textarea { resize: vertical; min-height: 66px; }
.group-post-list { display: grid; gap: 9px; }
.group-post {
  min-width: 0;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: start;
  gap: 10px;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 11px;
  background: var(--surface-alt);
}
.group-post.bulletin { border-color: color-mix(in srgb, var(--warning) 40%, var(--border)); background: color-mix(in srgb, var(--warning) 6%, var(--surface-alt)); }
.group-post > div { min-width: 0; }
.group-post header { display: flex; align-items: center; gap: 7px; flex-wrap: wrap; }
.group-post header strong { font-size: 10px; }
.group-post header span,
.group-post header time { color: var(--muted); font-size: 8px; }
.group-post header time { margin-left: auto; }
.group-post header b { display: inline-flex; align-items: center; gap: 4px; padding: 3px 6px; border-radius: 999px; color: var(--warning); background: color-mix(in srgb, var(--warning) 12%, transparent); font-size: 8px; }
.group-post p { margin: 6px 0 0; font-size: 11px; line-height: 1.55; overflow-wrap: anywhere; }
.community-error-panel,
.community-signin-required { display: grid; place-items: center; gap: 8px; padding: 32px; text-align: center; }
.community-error-panel svg,
.community-signin-required .large-icon { color: var(--primary); }
.community-error-panel h2,
.community-signin-required h3 { margin: 0; }
.community-error-panel p,
.community-signin-required p { max-width: 600px; margin: 0 0 10px; color: var(--muted); font-size: 11px; line-height: 1.55; }
.share-deck-summary { display: grid; grid-template-columns: auto minmax(0, 1fr); align-items: center; gap: 11px; padding: 12px; border: 1px solid var(--border); border-radius: 10px; background: var(--surface-alt); }
.share-deck-summary > span { width: 42px; height: 42px; display: grid; place-items: center; border-radius: 10px; color: var(--primary); background: color-mix(in srgb, var(--primary) 12%, var(--surface)); }
.share-deck-summary > div { min-width: 0; display: grid; gap: 2px; }
.share-deck-summary strong { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.share-deck-summary small { color: var(--muted); font-size: 9px; }
.share-deck-form { display: grid; gap: 14px; }
.community-visibility-fieldset { display: grid; gap: 8px; margin: 0; padding: 0; border: 0; }
.community-visibility-fieldset legend { margin-bottom: 7px; font-size: 10px; font-weight: 780; }
.choice-card {
  display: grid;
  grid-template-columns: auto auto minmax(0, 1fr);
  align-items: center;
  gap: 10px;
  padding: 11px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface-alt);
  cursor: pointer;
}
.choice-card:has(input:checked) { border-color: var(--primary); box-shadow: 0 0 0 2px color-mix(in srgb, var(--primary) 12%, transparent); }
.choice-card input { accent-color: var(--primary); }
.choice-card > span:last-child { display: grid; gap: 2px; }
.choice-card small { color: var(--muted); font-size: 9px; line-height: 1.4; }
.share-recipient-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 13px; }
.community-recipient-list { max-height: 235px; display: grid; gap: 6px; overflow-y: auto; padding: 2px; }
.community-recipient-option { min-width: 0; display: grid; grid-template-columns: auto auto minmax(0, 1fr); align-items: center; gap: 9px; padding: 8px; border: 1px solid var(--border); border-radius: 9px; background: var(--surface-alt); cursor: pointer; }
.community-recipient-option:has(input:checked) { border-color: var(--primary); background: color-mix(in srgb, var(--primary) 8%, var(--surface-alt)); }
.community-recipient-option input { accent-color: var(--primary); }
.community-recipient-avatar { width: 31px; height: 31px; display: grid; place-items: center; border-radius: 8px; color: var(--primary); background: var(--surface); }
.community-recipient-option > span:last-child { min-width: 0; display: grid; gap: 2px; }
.community-recipient-option strong,
.community-recipient-option small { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.community-recipient-option strong { font-size: 10px; }
.community-recipient-option small { color: var(--muted); font-size: 8px; }
.community-share-note { margin: 0; }
.share-deck-picker { display: grid; gap: 8px; }
.share-deck-pick { width: 100%; min-width: 0; display: grid; grid-template-columns: auto minmax(0, 1fr) auto; align-items: center; gap: 10px; padding: 11px; border: 1px solid var(--border); border-radius: 10px; background: var(--surface-alt); color: var(--text); text-align: left; cursor: pointer; }
.share-deck-pick:hover { border-color: var(--primary); }
.share-deck-pick > span { min-width: 0; display: grid; gap: 2px; }
.share-deck-pick strong,
.share-deck-pick small { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.share-deck-pick small { color: var(--muted); font-size: 9px; }
.deck-detail-footer { flex-wrap: wrap; }

@media (max-width: 1050px) {
  .community-demo-login { grid-template-columns: 1fr 1fr; }
  .community-demo-login > div { grid-column: 1 / -1; }
  .community-messages-layout { grid-template-columns: 230px minmax(0, 1fr); }
  .group-hero { grid-template-columns: auto minmax(0, 1fr); }
  .group-hero-actions { grid-column: 1 / -1; max-width: none; justify-content: flex-start; }
}
@media (max-width: 760px) {
  .community-two-column,
  .share-recipient-grid { grid-template-columns: 1fr; }
  .community-profile-strip { grid-template-columns: auto minmax(0, 1fr) auto auto; }
  .community-profile-strip .demo-signout { grid-column: 1 / -1; }
  .community-messages-layout { min-height: 640px; grid-template-columns: 1fr; grid-template-rows: auto minmax(0, 1fr); }
  .conversation-list { display: flex; gap: 5px; overflow-x: auto; border-right: 0; border-bottom: 1px solid var(--border); padding: 7px; }
  .conversation-heading { min-width: 120px; padding: 8px; }
  .conversation-row { min-width: 190px; border: 1px solid var(--border); border-radius: 9px; }
  .conversation-row.active { box-shadow: inset 0 -3px var(--primary); }
  .community-explainer-grid { grid-template-columns: 1fr; }
  .community-explainer-grid article + article { border-left: 0; border-top: 1px solid var(--border); }
  .community-deck-card { grid-template-columns: auto minmax(0, 1fr); }
  .community-deck-actions { grid-column: 1 / -1; justify-content: stretch; }
  .community-deck-actions .button { flex: 1; }
  .group-hero { grid-template-columns: 1fr; }
  .group-hero-mark { width: 52px; height: 52px; }
  .group-post-composer { grid-template-columns: 1fr; }
  .community-demo-login { grid-template-columns: 1fr; }
  .community-demo-login > div { grid-column: auto; }
}
@media (max-width: 480px) {
  .community-profile-strip { grid-template-columns: auto minmax(0, 1fr); }
  .community-profile-stat { border-left: 0; border-top: 1px solid var(--border); }
  .community-tabs button { flex: 0 0 auto; }
  .community-person-search .search-field { grid-template-columns: auto minmax(0, 1fr); }
  .community-person-search .search-field .button { grid-column: 1 / -1; }
  .community-person-row { grid-template-columns: auto minmax(0, 1fr); }
  .community-person-row .button { grid-column: 1 / -1; }
  .direct-message { max-width: 88%; }
  .message-composer { grid-template-columns: 1fr; }
  .community-deck-card { grid-template-columns: 1fr; }
  .community-deck-icon { width: 42px; height: 42px; }
  .community-deck-actions { grid-column: auto; }
  .community-member-grid,
  .community-friend-grid,
  .community-group-grid { grid-template-columns: 1fr; }
}

/* v0.4.0 release correction: keep the study surface bounded to the viewport.
   Dense cards are fitted inside the card area and only the card body scrolls
   after the minimum readable text size is reached. */
.study-layout {
  height: 100dvh;
  min-height: 620px;
  overflow: hidden;
}
.study-center {
  height: 100%;
  min-height: 0;
  overflow: hidden;
}
.study-main {
  min-height: 0;
  overflow: hidden;
}
.study-workspace {
  flex: 1 1 0;
  min-height: 0;
}
.study-card-stage {
  flex: 1 1 0;
  height: 0;
  min-height: 0;
}

@media (max-width: 760px) {
  .modal-overlay:has(.deck-detail-modal) {
    place-items: end center;
    padding: 6px 12px 0;
  }
  .modal.deck-detail-modal {
    max-height: calc(100dvh - 6px);
  }
}


/* v0.4.1 complete-card transitions.
   The detached animation surface contains the bordered study card itself:
   face badge, deck/card label, zoom toolbar, background, contents, rounded
   corners, and shadow. The progress row and grading controls stay fixed. */
.study-card-motion-stage {
  flex: 1 1 0;
  width: 100%;
  height: 0;
  min-width: 0;
  min-height: 0;
  position: relative;
  display: flex;
  perspective: 1800px;
  transform-style: preserve-3d;
  overflow: visible;
  isolation: isolate;
}
.study-card-motion-stage > .study-workspace {
  width: 100%;
  height: 100%;
  min-width: 0;
  min-height: 0;
  flex: 1 1 auto;
  margin: 0;
}
.study-card-motion-stage.card-transition-active > .study-workspace {
  visibility: hidden;
}
.card-transition-surface {
  z-index: 20;
  overflow: visible;
  pointer-events: none;
}
.card-transition-surface .card-transition-layer {
  overflow: visible;
}
.card-transition-surface .card-transition-layer > .study-workspace {
  box-sizing: border-box;
  width: 100%;
  height: 100%;
  min-width: 0;
  min-height: 0;
  margin: 0;
  flex: none;
  box-shadow: none !important;
  will-change: transform, opacity, filter;
}
.card-transition-snapshot {
  pointer-events: none;
  user-select: none;
  -webkit-user-select: none;
  box-shadow: none !important;
}
.card-transition-snapshot *,
.card-transition-snapshot *::before,
.card-transition-snapshot *::after {
  box-shadow: none !important;
}
.card-transition-snapshot .study-card-stage,
.card-transition-snapshot .study-card-face,
.card-transition-snapshot .card-text-viewport,
.card-transition-snapshot .card-image-scroller,
.card-transition-snapshot .occlusion-scroller {
  box-shadow: none !important;
}
@media (max-width: 700px) {
  .study-card-motion-stage { perspective: 1400px; }
}

/* v0.5.x Desktop Creator Studio */
.creator-view {
  width: 100%;
  max-width: 1500px;
  margin: 0 auto;
  padding: 30px 30px 120px;
}
.creator-local-banner {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 13px;
  margin-bottom: 15px;
  padding: 13px 15px;
  border: 1px solid color-mix(in srgb, var(--success) 32%, var(--border));
  border-radius: 12px;
  background: color-mix(in srgb, var(--success) 7%, var(--surface));
  color: var(--success);
}
.creator-local-banner > div { min-width: 0; display: grid; gap: 2px; }
.creator-local-banner strong { color: var(--text); font-size: 13px; }
.creator-local-banner span:not(.status-pill) { color: var(--muted); font-size: 11px; line-height: 1.45; }
.creator-tabs {
  position: sticky;
  top: 0;
  z-index: 18;
  display: flex;
  align-items: center;
  gap: 5px;
  margin-bottom: 16px;
  padding: 7px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: color-mix(in srgb, var(--surface) 94%, transparent);
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(12px);
}
.creator-tabs button {
  min-height: 41px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 8px 15px;
  border: 1px solid transparent;
  border-radius: 9px;
  background: transparent;
  color: var(--muted);
  font-size: 13px;
  font-weight: 780;
}
.creator-tabs button:hover { color: var(--text); background: var(--surface-alt); }
.creator-tabs button.active {
  color: var(--text);
  border-color: color-mix(in srgb, var(--primary) 35%, var(--border));
  background: color-mix(in srgb, var(--primary) 12%, var(--surface-alt));
  box-shadow: inset 0 -2px var(--primary);
}
.creator-tabs button.active .icon { color: var(--primary); }
.creator-workspace-host { display: grid; gap: 14px; min-width: 0; }
.creator-editor-grid,
.practice-editor-grid {
  display: grid;
  grid-template-columns: 220px minmax(540px, 1fr) 245px;
  align-items: start;
  gap: 14px;
  min-width: 0;
}
.creator-item-rail {
  position: sticky;
  top: 70px;
  max-height: calc(100dvh - 100px);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.creator-item-rail > header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 14px 14px 11px;
  border-bottom: 1px solid var(--border);
}
.creator-item-rail > header > strong {
  min-width: 26px;
  min-height: 24px;
  display: grid;
  place-items: center;
  padding: 2px 7px;
  border-radius: 999px;
  color: var(--primary);
  background: color-mix(in srgb, var(--primary) 13%, transparent);
  font-size: 11px;
}
.creator-item-list { min-height: 120px; display: grid; align-content: start; gap: 5px; overflow-y: auto; padding: 8px; }
.creator-item-row {
  width: 100%;
  min-width: 0;
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr);
  align-items: center;
  gap: 8px;
  padding: 8px;
  border: 1px solid transparent;
  border-radius: 9px;
  background: transparent;
  color: var(--muted);
  text-align: left;
}
.creator-item-row:hover { border-color: var(--border); background: var(--surface-alt); color: var(--text); }
.creator-item-row.active { border-color: color-mix(in srgb, var(--primary) 45%, var(--border)); background: color-mix(in srgb, var(--primary) 10%, var(--surface-alt)); color: var(--text); }
.creator-item-row > span {
  width: 27px;
  height: 27px;
  display: grid;
  place-items: center;
  border: 1px solid var(--border);
  border-radius: 7px;
  font-size: 10px;
  font-weight: 800;
}
.creator-item-row.active > span { color: var(--primary); border-color: var(--primary); }
.creator-item-row > div { min-width: 0; display: grid; gap: 1px; }
.creator-item-row strong,
.creator-item-row small { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.creator-item-row strong { font-size: 11px; }
.creator-item-row small { color: var(--muted); font-size: 9px; text-transform: capitalize; }
.creator-item-rail > footer { display: grid; grid-template-columns: 1fr 1fr; gap: 7px; padding: 10px; border-top: 1px solid var(--border); }
.creator-editor-main { min-width: 0; overflow: hidden; }
.creator-editor-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 14px;
  padding: 15px 16px;
  border-bottom: 1px solid var(--border);
}
.creator-name-field { flex: 1 1 420px; }
.creator-deck-name { width: 100%; font-weight: 780; }
.creator-card-actions { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 6px; }
.creator-side-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); min-width: 0; }
.creator-card-side { min-width: 0; padding: 16px; }
.creator-card-side + .creator-card-side { border-left: 1px solid var(--border); }
.creator-field-label { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.creator-field-label strong { font-size: 12px; }
.creator-field-label span { color: var(--muted); font-size: 9px; }
.creator-rich-field { min-width: 0; display: grid; gap: 7px; }
.rich-toolbar {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 3px;
  padding: 5px;
  border: 1px solid var(--border);
  border-bottom: 0;
  border-radius: 9px 9px 0 0;
  background: color-mix(in srgb, var(--surface-alt) 72%, var(--surface));
}
.rich-toolbar > span { width: 1px; align-self: stretch; margin: 2px 3px; background: var(--border); }
.rich-toolbar button {
  min-width: 29px;
  height: 29px;
  display: grid;
  place-items: center;
  padding: 0 7px;
  border: 1px solid transparent;
  border-radius: 6px;
  background: transparent;
  color: var(--muted);
  font-size: 11px;
  font-weight: 780;
}
.rich-toolbar button:hover { color: var(--text); border-color: var(--border); background: var(--surface); }
.creator-rich-editor {
  min-height: 175px;
  max-height: 340px;
  overflow: auto;
  padding: 14px;
  border: 1px solid var(--border);
  border-radius: 0 0 9px 9px;
  background: color-mix(in srgb, var(--background) 35%, var(--surface));
  color: var(--text);
  outline: none;
  line-height: 1.6;
}
.creator-rich-field.compact .creator-rich-editor { min-height: 92px; max-height: 180px; }
.creator-rich-editor:empty::before { content: attr(data-placeholder); color: color-mix(in srgb, var(--muted) 66%, transparent); pointer-events: none; }
.creator-rich-editor:focus { border-color: var(--primary); box-shadow: 0 0 0 3px color-mix(in srgb, var(--primary) 17%, transparent); }
.creator-rich-editor img { max-width: 100%; }
.creator-image-section { display: grid; gap: 8px; margin-top: 13px; }
.creator-image-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.creator-image-head > strong { font-size: 11px; }
.creator-image-list { display: grid; gap: 6px; }
.creator-image-empty { min-height: 58px; display: grid; place-items: center; border: 1px dashed var(--border); border-radius: 9px; color: var(--muted); font-size: 10px; }
.creator-image-chip {
  min-width: 0;
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr) auto;
  align-items: center;
  gap: 9px;
  padding: 7px;
  border: 1px solid var(--border);
  border-radius: 9px;
  background: var(--surface-alt);
}
.creator-image-chip > div { width: 52px; height: 44px; display: grid; place-items: center; overflow: hidden; border-radius: 7px; background: var(--surface); }
.creator-image-chip img { width: 100%; height: 100%; object-fit: contain; }
.creator-image-chip > span { min-width: 0; display: grid; gap: 1px; }
.creator-image-chip strong,
.creator-image-chip small { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.creator-image-chip strong { font-size: 10px; }
.creator-image-chip small { color: var(--muted); font-size: 8px; }
.creator-side-tools { display: flex; justify-content: flex-start; margin-top: 12px; }
.same-front-toggle { margin-top: 13px; }
.creator-notes-field { padding: 16px; border-top: 1px solid var(--border); }
.creator-preview-panel {
  position: sticky;
  top: 70px;
  display: grid;
  gap: 10px;
  padding: 15px;
}
.creator-preview-panel h3 { margin: -3px 0 2px; }
.creator-preview-face { min-width: 0; min-height: 100px; display: grid; align-content: center; gap: 6px; overflow: hidden; padding: 13px; border: 1px solid var(--border); border-radius: 10px; background: color-mix(in srgb, var(--surface-alt) 68%, var(--surface)); }
.creator-preview-face.back { align-content: center; }
.creator-preview-face small { color: var(--primary); font-size: 9px; font-weight: 820; letter-spacing: .08em; text-transform: uppercase; }
.creator-preview-face > div { max-height: 110px; overflow: hidden; font-size: 12px; line-height: 1.45; overflow-wrap: anywhere; }
.creator-preview-panel dl { display: grid; gap: 7px; margin: 0; }
.creator-preview-panel dl > div { display: flex; justify-content: space-between; gap: 12px; padding-bottom: 7px; border-bottom: 1px solid var(--border); font-size: 10px; }
.creator-preview-panel dt { color: var(--muted); }
.creator-preview-panel dd { margin: 0; font-weight: 750; text-align: right; }
.creator-savebar {
  position: sticky;
  bottom: 12px;
  z-index: 15;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 13px 15px;
  box-shadow: var(--shadow-md);
}
.creator-savebar > div { min-width: 0; display: flex; align-items: center; gap: 9px; flex-wrap: wrap; }
.creator-savebar > div:first-child { display: grid; gap: 1px; }
.creator-savebar strong { font-size: 12px; }
.creator-savebar span { color: var(--muted); font-size: 10px; }

/* Practice-test authoring */
.practice-question-settings {
  display: grid;
  grid-template-columns: minmax(170px, 1.2fr) 120px repeat(2, minmax(140px, .8fr));
  gap: 11px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
  background: color-mix(in srgb, var(--surface-alt) 42%, transparent);
}
.practice-question-settings .toggle-row { min-height: 42px; padding: 0; border: 0; }
.practice-answer-configuration { display: grid; gap: 13px; padding: 0 16px 16px; }
.multiple-choice-editor,
.written-answers { display: grid; gap: 8px; }
.multiple-choice-editor > header { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.practice-choice-list { display: grid; gap: 7px; }
.practice-choice-row {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto auto;
  align-items: center;
  gap: 7px;
  padding: 7px;
  border: 1px solid var(--border);
  border-radius: 9px;
  background: var(--surface-alt);
}
.practice-choice-row input[type="radio"] { width: 17px; height: 17px; accent-color: var(--primary); }
.practice-choice-row .choice-text { width: 100%; min-height: 38px; padding: 7px 9px; }
.choice-image-preview { width: 48px; height: 38px; display: grid; place-items: center; overflow: hidden; border-radius: 7px; background: var(--surface); }
.choice-image-preview img { width: 100%; height: 100%; object-fit: contain; }
.written-answers textarea { resize: vertical; }

/* Local import center */
.creator-tool-intro {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 19px 21px;
}
.creator-tool-intro > div { min-width: 0; }
.creator-tool-intro h2 { margin: 4px 0 5px; }
.creator-tool-intro p { max-width: 800px; margin: 0; color: var(--muted); }
.creator-tool-intro > span { width: 64px; height: 64px; display: grid; place-items: center; flex: 0 0 auto; border-radius: 17px; color: var(--success); background: color-mix(in srgb, var(--success) 11%, var(--surface-alt)); }
.creator-import-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 13px; }
.creator-import-card {
  min-height: 222px;
  display: grid;
  grid-template-rows: auto 1fr auto;
  align-content: start;
  gap: 12px;
  padding: 18px;
}
.creator-import-card[data-import="anki"] { border-color: color-mix(in srgb, var(--primary) 45%, var(--border)); }
.creator-import-icon { width: 50px; height: 50px; display: grid; place-items: center; border-radius: 13px; color: var(--primary); background: color-mix(in srgb, var(--primary) 11%, var(--surface-alt)); }
.creator-import-card h3 { margin: 0 0 5px; font-size: 16px; }
.creator-import-card p { margin: 0; color: var(--muted); font-size: 11px; line-height: 1.55; }
.creator-import-log { display: flex; align-items: center; gap: 11px; padding: 14px; }
.creator-import-log > div { display: grid; gap: 2px; }
.creator-import-log strong { font-size: 12px; }
.creator-import-log span { color: var(--muted); font-size: 10px; }
.creator-merge-form { display: grid; gap: 14px; }
.creator-merge-list { max-height: 330px; display: grid; gap: 7px; overflow-y: auto; }
.creator-merge-list label { display: grid; grid-template-columns: auto minmax(0, 1fr); align-items: center; gap: 10px; padding: 10px; border: 1px solid var(--border); border-radius: 9px; background: var(--surface-alt); }
.creator-merge-list input { accent-color: var(--primary); }
.creator-merge-list span { min-width: 0; display: grid; gap: 2px; }
.creator-merge-list small { color: var(--muted); }

/* Screen capture */
.creator-capture-home { min-height: 500px; display: grid; place-content: center; justify-items: center; gap: 11px; padding: 42px; text-align: center; }
.creator-capture-home h2 { max-width: 700px; margin: 3px 0 0; font-size: clamp(23px, 2.3vw, 34px); }
.creator-capture-home > p { max-width: 720px; margin: 0; color: var(--muted); }
.creator-capture-home > small { color: var(--muted); }
.creator-capture-illustration { position: relative; width: 102px; height: 80px; display: grid; place-items: center; margin-bottom: 5px; border: 1px solid var(--border); border-radius: 18px; color: var(--primary); background: color-mix(in srgb, var(--primary) 9%, var(--surface-alt)); }
.creator-capture-illustration > span { position: absolute; right: -9px; bottom: -8px; width: 44px; height: 38px; display: grid; place-items: center; border: 1px solid var(--border); border-radius: 11px; color: var(--success); background: var(--surface); box-shadow: var(--shadow-sm); }
.creator-capture-feature-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 7px; margin: 8px 0 9px; text-align: left; }
.creator-capture-feature-grid span { display: flex; align-items: center; gap: 7px; padding: 8px 10px; border: 1px solid var(--border); border-radius: 8px; background: var(--surface-alt); color: var(--muted); font-size: 10px; }
.capture-layout { display: grid; grid-template-columns: minmax(0, 1fr) 275px; gap: 13px; min-width: 0; }
.capture-preview-panel { min-width: 0; display: grid; gap: 8px; }
.capture-topbar { display: flex; align-items: center; gap: 7px; flex-wrap: wrap; }
.capture-status { margin-right: auto; display: inline-flex; align-items: center; min-height: 29px; padding: 4px 9px; border-radius: 999px; color: var(--success); background: color-mix(in srgb, var(--success) 10%, transparent); font-size: 10px; font-weight: 750; }
.capture-stage { position: relative; min-height: 430px; display: grid; place-items: center; overflow: hidden; border: 1px solid var(--border); border-radius: 11px; background: #070b13; }
.capture-video { display: block; max-width: 100%; max-height: 65dvh; }
.capture-preview { position: absolute; inset: 0; width: 100%; height: 100%; touch-action: none; }
.capture-placeholder { display: grid; place-content: center; justify-items: center; gap: 8px; color: var(--muted); text-align: center; }
.capture-countdown { position: absolute; inset: 0; z-index: 5; display: grid; place-content: center; justify-items: center; background: rgb(5 9 16 / .76); backdrop-filter: blur(5px); }
.capture-countdown strong { font-size: 76px; color: var(--primary); line-height: 1; }
.capture-countdown span { margin-top: 8px; font-weight: 750; }
.capture-preview-actions { display: flex; flex-wrap: wrap; gap: 7px; }
.capture-settings { display: grid; align-content: start; gap: 11px; padding: 14px; border: 1px solid var(--border); border-radius: 11px; background: color-mix(in srgb, var(--surface-alt) 55%, var(--surface)); }
.capture-settings h3 { margin: 0; }
.capture-settings .toggle-row { padding: 10px 0; }
.capture-help,
.capture-privacy-note { display: flex; align-items: flex-start; gap: 8px; padding: 10px; border: 1px solid var(--border); border-radius: 9px; color: var(--muted); font-size: 10px; line-height: 1.45; }
.capture-review { margin-top: 14px; display: grid; gap: 9px; }
.capture-review-actions { display: flex; align-items: center; justify-content: space-between; gap: 8px; flex-wrap: wrap; }
.capture-strip { display: flex; gap: 9px; overflow-x: auto; padding: 3px 2px 10px; }
.capture-thumb { flex: 0 0 170px; overflow: hidden; border: 1px solid var(--border); border-radius: 10px; background: var(--surface-alt); }
.capture-thumb.active { border-color: var(--primary); box-shadow: 0 0 0 2px color-mix(in srgb, var(--primary) 17%, transparent); }
.capture-thumb-image { height: 105px; display: grid; place-items: center; overflow: hidden; background: #080c14; }
.capture-thumb-image img { width: 100%; height: 100%; object-fit: contain; }
.capture-thumb footer { display: flex; align-items: center; justify-content: space-between; gap: 5px; padding: 7px; }
.capture-thumb footer strong { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 9px; }
.capture-thumb footer span { display: flex; }
.capture-footer { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-top: 14px; padding-top: 14px; border-top: 1px solid var(--border); }

/* Image-occlusion editor */
.occlusion-workspace { display: grid; grid-template-columns: minmax(0, 1fr) 250px; gap: 13px; min-width: 0; }
.occlusion-canvas-shell { position: relative; min-height: 520px; display: grid; place-items: center; overflow: hidden; border: 1px solid var(--border); border-radius: 11px; background: #080c14; }
.occlusion-canvas { width: 100%; height: 100%; min-height: 520px; touch-action: none; }
.occlusion-toolbar { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 10px; }
.occlusion-toolbar button { min-height: 35px; display: inline-flex; align-items: center; gap: 6px; padding: 6px 9px; border: 1px solid var(--border); border-radius: 8px; background: var(--surface-alt); color: var(--muted); font-size: 10px; font-weight: 740; }
.occlusion-toolbar button:hover,
.occlusion-toolbar button.active { color: var(--text); border-color: var(--primary); background: color-mix(in srgb, var(--primary) 10%, var(--surface-alt)); }
.occlusion-inspector { display: grid; align-content: start; gap: 11px; padding: 14px; border: 1px solid var(--border); border-radius: 11px; background: var(--surface-alt); }
.occlusion-inspector h3 { margin: 0; }
.occlusion-shape-fields { display: grid; gap: 9px; }
.occlusion-counts { display: grid; grid-template-columns: 1fr 1fr; gap: 7px; }
.occlusion-counts span { display: grid; gap: 2px; padding: 9px; border: 1px solid var(--border); border-radius: 8px; background: var(--surface); color: var(--muted); font-size: 9px; }
.occlusion-counts strong { color: var(--text); font-size: 15px; }
.occlusion-empty-inspector { min-height: 145px; display: grid; place-content: center; justify-items: center; gap: 6px; color: var(--muted); text-align: center; }
.occlusion-footer { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-top: 13px; padding-top: 13px; border-top: 1px solid var(--border); }
.occlusion-footer > div { display: flex; flex-wrap: wrap; gap: 7px; }

.creator-unavailable-view { width: 100%; max-width: 760px; margin: 0 auto; padding: 70px 24px; }
.creator-unavailable-panel { min-height: 430px; display: grid; place-content: center; justify-items: center; gap: 8px; padding: 34px; text-align: center; }
.creator-unavailable-icon { width: 78px; height: 78px; display: grid; place-items: center; margin-bottom: 4px; border-radius: 20px; color: var(--primary); background: color-mix(in srgb, var(--primary) 12%, var(--surface-alt)); }
.creator-unavailable-panel h1 { margin: 3px 0 0; }
.creator-unavailable-panel p { max-width: 580px; color: var(--muted); }

@media (max-width: 1320px) {
  .creator-editor-grid,
  .practice-editor-grid { grid-template-columns: 200px minmax(500px, 1fr); }
  .creator-preview-panel { position: static; grid-column: 2; grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .creator-preview-panel > .eyebrow,
  .creator-preview-panel > h3,
  .creator-preview-panel > dl,
  .creator-preview-panel > .inline-notice { grid-column: 1 / -1; }
}
@media (max-width: 1120px) {
  .creator-editor-grid,
  .practice-editor-grid { grid-template-columns: 180px minmax(0, 1fr); }
  .creator-side-grid { grid-template-columns: 1fr; }
  .creator-card-side + .creator-card-side { border-left: 0; border-top: 1px solid var(--border); }
  .creator-import-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .practice-question-settings { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .capture-layout,
  .occlusion-workspace { grid-template-columns: 1fr; }
  .capture-settings,
  .occlusion-inspector { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .capture-settings h3,
  .capture-help,
  .capture-privacy-note,
  .occlusion-inspector h3,
  .occlusion-empty-inspector { grid-column: 1 / -1; }
}
@media (max-width: 900px), (pointer: coarse) {
  .desktop-creation-only,
  body.study-only-mobile .desktop-creator-view,
  body.study-only-mobile .library-dropzone,
  body.study-only-mobile .item-select,
  body.study-only-mobile .item-more,
  body.study-only-mobile .select-all-button,
  body.study-only-mobile .selection-bar,
  body.study-only-mobile .deck-detail-footer,
  body.study-only-mobile .trouble-threshold-panel { display: none !important; }
}

/* Creator Studio lives between the application sidebar and ad rail. Keep the
   editor wide enough for authoring controls even on ordinary desktop screens. */
.creator-editor-grid,
.practice-editor-grid { grid-template-columns: 210px minmax(0, 1fr); }
.creator-preview-panel {
  position: static;
  grid-column: 2;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}
.creator-preview-panel > .eyebrow,
.creator-preview-panel > h3,
.creator-preview-panel > dl,
.creator-preview-panel > .inline-notice { grid-column: 1 / -1; }
@media (min-width: 1880px) {
  .creator-editor-grid,
  .practice-editor-grid { grid-template-columns: 220px minmax(620px, 1fr) 250px; }
  .creator-preview-panel { position: sticky; grid-column: auto; grid-template-columns: 1fr; }
  .creator-preview-panel > .eyebrow,
  .creator-preview-panel > h3,
  .creator-preview-panel > dl,
  .creator-preview-panel > .inline-notice { grid-column: auto; }
}

/* v0.5.1 local import progress */
.task-progress-dialog { display: grid; gap: 15px; }
.task-progress-status { display: grid; grid-template-columns: 42px minmax(0, 1fr) auto; align-items: center; gap: 12px; }
.task-progress-status > div { min-width: 0; display: grid; gap: 3px; }
.task-progress-title { overflow-wrap: anywhere; font-size: 13px; }
.task-progress-detail { color: var(--muted); font-size: 10px; line-height: 1.45; overflow-wrap: anywhere; }
.task-progress-icon { width: 40px; height: 40px; display: grid; place-items: center; border: 1px solid var(--border); border-radius: 10px; color: var(--primary); background: color-mix(in srgb, var(--primary) 8%, var(--surface-alt)); }
.task-progress-icon.success { color: var(--success); background: color-mix(in srgb, var(--success) 10%, var(--surface-alt)); }
.task-progress-icon.error { color: var(--danger); background: color-mix(in srgb, var(--danger) 10%, var(--surface-alt)); }
.task-progress-percent { min-width: 42px; color: var(--primary); text-align: right; font-size: 12px; font-weight: 820; }
.task-progress-bar { appearance: none; width: 100%; height: 10px; overflow: hidden; border: 0; border-radius: 999px; background: var(--surface-alt); }
.task-progress-bar::-webkit-progress-bar { border-radius: inherit; background: var(--surface-alt); }
.task-progress-bar::-webkit-progress-value { border-radius: inherit; background: linear-gradient(90deg, color-mix(in srgb, var(--primary) 74%, white), var(--primary)); transition: width .2s ease; }
.task-progress-bar::-moz-progress-bar { border-radius: inherit; background: var(--primary); }
.task-progress-stages { display: grid; grid-template-columns: repeat(4, 1fr); gap: 6px; }
.task-progress-stages span { position: relative; padding-top: 9px; color: var(--muted); text-align: center; font-size: 8px; font-weight: 760; letter-spacing: .04em; text-transform: uppercase; }
.task-progress-stages span::before { content: ""; position: absolute; top: 0; left: 50%; width: 7px; height: 7px; border: 1px solid var(--border); border-radius: 50%; background: var(--surface); transform: translateX(-50%); }
.task-progress-stages span.active { color: var(--primary); }
.task-progress-stages span.active::before { border-color: var(--primary); background: var(--primary); box-shadow: 0 0 0 3px color-mix(in srgb, var(--primary) 16%, transparent); }
.task-progress-stages span.complete { color: var(--success); }
.task-progress-stages span.complete::before { border-color: var(--success); background: var(--success); }
.task-progress-actions { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 8px; padding-top: 4px; }

/* v0.5.1 desktop-faithful image-occlusion studio */
.modal.occlusion-editor-modal {
  width: min(1450px, calc(100vw - 32px));
  height: min(900px, calc(100vh - 32px));
  max-width: calc(100vw - 20px);
  max-height: calc(100vh - 20px);
  min-width: min(980px, calc(100vw - 20px));
  min-height: min(680px, calc(100vh - 20px));
  resize: both;
  overflow: hidden;
}
.occlusion-editor-modal .modal-header { flex: 0 0 auto; padding: 14px 17px 12px; }
.occlusion-editor-modal .modal-header h2 { font-size: 17px; }
.occlusion-editor-modal .modal-header p { font-size: 10px; }
.occlusion-editor-modal .modal-body { flex: 1 1 auto; min-height: 0; overflow: hidden; padding: 12px; }
.desktop-occlusion-editor { width: 100%; height: 100%; min-height: 0; display: flex; flex-direction: column; }
.desktop-occlusion-editor .occlusion-toolbar { flex: 0 0 auto; align-items: center; margin-bottom: 9px; }
.desktop-occlusion-editor .toolbar-spacer { flex: 1 1 auto; }
.occlusion-editor-modal .occlusion-workspace { flex: 1 1 auto; min-height: 0; display: grid; grid-template-columns: minmax(0, 1fr) minmax(286px, 330px); gap: 11px; }
.occlusion-editor-modal .occlusion-canvas-shell { width: 100%; height: 100%; min-width: 0; min-height: 0; }
.occlusion-editor-modal .occlusion-canvas { width: auto; height: auto; min-width: 1px; min-height: 1px; max-width: none; max-height: none; }
.occlusion-sidebar { min-width: 0; min-height: 0; display: flex; flex-direction: column; gap: 10px; padding: 0; overflow: auto; overscroll-behavior: contain; }
.occlusion-navigator-section { flex: 0 0 auto; display: grid; gap: 8px; padding: 11px; border-bottom: 1px solid var(--border); }
.occlusion-navigator-section > header { display: flex; align-items: flex-start; justify-content: space-between; gap: 8px; }
.occlusion-navigator-section h3 { margin: 2px 0 0; font-size: 13px; }
.occlusion-batch-count { flex: 0 0 auto; padding: 4px 7px; border: 1px solid var(--border); border-radius: 999px; color: var(--muted); background: var(--surface-alt); font-size: 8px; white-space: nowrap; }
.occlusion-navigator { min-height: 0; display: grid; gap: 5px; }
.occlusion-tree-heading { display: flex; align-items: center; justify-content: space-between; gap: 8px; margin-top: 4px; padding: 5px 7px; border-radius: 7px; color: var(--muted); background: color-mix(in srgb, var(--surface-alt) 76%, transparent); font-size: 9px; font-weight: 800; letter-spacing: .03em; text-transform: uppercase; }
.occlusion-tree-heading span { display: inline-flex; align-items: center; gap: 6px; }
.occlusion-tree-card { display: grid; gap: 2px; }
.occlusion-tree-children { display: grid; gap: 2px; margin-left: 13px; padding-left: 7px; border-left: 1px solid var(--border); }
.occlusion-tree-row { width: 100%; min-width: 0; display: grid; grid-template-columns: 18px minmax(0, 1fr); align-items: center; gap: 6px; padding: 6px 7px; border: 1px solid transparent; border-radius: 7px; background: transparent; color: var(--muted); text-align: left; }
.occlusion-tree-row:hover { border-color: var(--border); background: var(--surface-alt); color: var(--text); }
.occlusion-tree-row.active { border-color: color-mix(in srgb, var(--primary) 52%, var(--border)); background: color-mix(in srgb, var(--primary) 10%, var(--surface-alt)); color: var(--text); }
.occlusion-tree-row > div { min-width: 0; display: grid; gap: 1px; }
.occlusion-tree-row strong, .occlusion-tree-row small { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.occlusion-tree-row strong { font-size: 9px; }
.occlusion-tree-row small { color: var(--muted); font-size: 8px; }
.occlusion-tree-row.group-row > span { color: var(--danger); }
.occlusion-tree-row.area-row > span { color: var(--success); }
.occlusion-tree-row .tree-line { width: 9px; height: 1px; background: var(--border); }
.occlusion-tree-empty { padding: 9px; border: 1px dashed var(--border); border-radius: 7px; color: var(--muted); font-size: 9px; text-align: center; }
.occlusion-inspector-section { flex: 0 0 auto; padding: 0 11px; }
.occlusion-editor-modal .occlusion-inspector { display: grid; grid-template-columns: 1fr; align-content: start; gap: 9px; padding: 11px; border: 1px solid var(--border); border-radius: 9px; background: var(--surface-alt); }
.occlusion-editor-modal .occlusion-inspector h3 { margin: 0; font-size: 13px; }
.occlusion-editor-modal .occlusion-inspector p { margin: 0; color: var(--muted); font-size: 9px; line-height: 1.5; }
.occlusion-editor-modal .occlusion-inspector .form-field { gap: 5px; }
.occlusion-editor-modal .occlusion-inspector .form-field > span { font-size: 9px; }
.occlusion-editor-modal .occlusion-inspector select,
.occlusion-editor-modal .occlusion-inspector input[type="text"] { min-height: 32px; }
.occlusion-inspector-stat { display: flex; align-items: center; gap: 8px; padding: 8px; border: 1px solid var(--border); border-radius: 8px; background: var(--surface); }
.occlusion-inspector-stat strong { min-width: 28px; color: var(--primary); font-size: 18px; text-align: center; }
.occlusion-inspector-stat span { color: var(--muted); font-size: 9px; line-height: 1.35; }
.occlusion-language-note { flex: 0 0 auto; margin: 0 11px 11px; }
.occlusion-language-note > div { display: grid; gap: 2px; }
.occlusion-language-note strong { color: var(--text); }
.occlusion-context-help { align-self: center; color: var(--muted); font-size: 9px; }
.occlusion-editor-modal .occlusion-footer { flex: 0 0 auto; margin-top: 9px; padding-top: 9px; }

/* Separate connected card areas are combined on a black SVG canvas. */
.occlusion-connected-svg { background: #000; }
.occlusion-connected-background { pointer-events: none; }

@media (max-height: 760px) {
  .modal.occlusion-editor-modal { min-height: calc(100vh - 12px); height: calc(100vh - 12px); }
  .occlusion-editor-modal .modal-header { padding-block: 10px; }
  .occlusion-editor-modal .modal-body { padding: 9px; }
}

/* Session selection and rolling completion window */
.session-toolbar-actions { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; justify-content: flex-end; }
.session-card-select-mode { display: flex; align-items: center; gap: 9px; }
.session-select { position: relative; width: 20px; height: 20px; display: inline-grid; place-items: center; flex: 0 0 auto; cursor: pointer; }
.session-select input { position: absolute; opacity: 0; pointer-events: none; }
.session-select > span:not(.sr-only) { width: 19px; height: 19px; display: block; border: 1px solid var(--border); border-radius: 5px; background: color-mix(in srgb, var(--surface) 90%, transparent); box-shadow: 0 1px 4px rgb(0 0 0 / .16); }
.session-select input:checked + span { border-color: var(--primary); background: var(--primary); }
.session-select input:checked + span::after { content: ""; width: 8px; height: 4px; display: block; margin: 5px 0 0 4px; border-left: 2px solid var(--background); border-bottom: 2px solid var(--background); transform: rotate(-45deg); }
.active-session-card.selected,
.session-history-row.selected { border-color: var(--primary); box-shadow: inset 0 0 0 1px var(--primary), var(--shadow-sm); background: color-mix(in srgb, var(--primary) 6%, var(--surface)); }
.session-history-row { grid-template-columns: 22px 42px minmax(0, 1fr) 72px 72px 82px 38px; }
.session-selection-bar { z-index: 145; }
@media (max-width: 1090px) {
  .session-history-row { grid-template-columns: 22px 40px minmax(0, 1fr) 58px 36px; }
  .session-history-row .history-stat:nth-of-type(2),
  .session-history-row .history-stat:nth-of-type(3) { display: none; }
}
@media (max-width: 720px) {
  .session-toolbar-actions { width: 100%; justify-content: space-between; }
  .session-toolbar-actions .history-search { flex: 1 1 220px; }
}

/* v0.5.2 creator completion, simplified authoring, and capture permission help */
.creator-editor-grid,
.practice-editor-grid { grid-template-columns: 210px minmax(0, 1fr) !important; }
.creator-item-rail > footer { grid-template-columns: 1fr; }
.creator-finish-confirmation { display: grid; grid-template-columns: 54px minmax(0, 1fr); align-items: start; gap: 14px; }
.creator-finish-confirmation > div:nth-child(2) { display: grid; gap: 5px; }
.creator-finish-confirmation strong { font-size: 14px; }
.creator-finish-confirmation p { margin: 0; color: var(--muted); font-size: 11px; line-height: 1.5; }
.creator-finish-confirmation .modal-actions { grid-column: 1 / -1; }
.creator-finish-icon { width: 52px; height: 52px; display: grid; place-items: center; border-radius: 14px; color: var(--success); background: color-mix(in srgb, var(--success) 13%, var(--surface-alt)); }

.occlusion-checkbox-row {
  min-width: 0;
  display: grid;
  grid-template-columns: 18px minmax(0, 1fr);
  align-items: start;
  gap: 9px;
  padding: 9px;
  border: 1px solid var(--border);
  border-radius: 9px;
  background: color-mix(in srgb, var(--surface) 72%, var(--surface-alt));
  cursor: pointer;
}
.occlusion-checkbox-row input[type="checkbox"] {
  width: 16px;
  height: 16px;
  margin: 1px 0 0;
  accent-color: var(--primary);
  cursor: pointer;
}
.occlusion-checkbox-row > span { min-width: 0; display: grid; gap: 2px; }
.occlusion-checkbox-row strong { font-size: 10px; }
.occlusion-checkbox-row small { color: var(--muted); font-size: 8px; line-height: 1.45; }

.capture-permission-guide { margin: 10px 0; padding: 0; overflow: hidden; }
.capture-permission-guide summary { display: flex; align-items: center; gap: 7px; padding: 10px 12px; color: var(--muted); font-size: 10px; font-weight: 760; cursor: pointer; list-style: none; }
.capture-permission-guide summary::-webkit-details-marker { display: none; }
.capture-permission-guide[open] summary { color: var(--text); border-bottom: 1px solid var(--border); }
.capture-permission-guide > div { display: grid; gap: 7px; padding: 11px 13px 13px; }
.capture-permission-guide p { margin: 0; color: var(--muted); font-size: 9px; line-height: 1.5; }
.capture-permission-guide code { padding: 1px 4px; border-radius: 4px; color: var(--text); background: var(--surface-alt); }
.capture-permission-problem { display: grid; grid-template-columns: auto minmax(0, 1fr) auto; align-items: center; gap: 10px; margin-bottom: 10px; }
.capture-permission-problem[hidden] { display: none; }
.capture-permission-actions { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 6px; }
@media (max-width: 1120px) {
  .capture-permission-problem { grid-template-columns: auto minmax(0, 1fr); }
  .capture-permission-actions { grid-column: 1 / -1; justify-content: flex-start; }
}

/* Accessible text that remains available to assistive technology without affecting layout. */
.sr-only {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

/* v0.5.3 missed-card recurrence indicator */
.study-card-identity { min-width: 0; }
.study-reinsert-chip {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  margin-left: 10px;
  padding: 4px 8px;
  border: 1px solid color-mix(in srgb, var(--warning) 48%, var(--border));
  border-radius: 999px;
  background: color-mix(in srgb, var(--warning) 13%, var(--surface-alt));
  color: color-mix(in srgb, var(--warning) 80%, var(--text));
  font-size: 9px;
  font-weight: 800;
  letter-spacing: .065em;
  white-space: nowrap;
}
.study-reinsert-chip.is-recheck {
  border-color: color-mix(in srgb, var(--primary) 45%, var(--border));
  background: color-mix(in srgb, var(--primary) 10%, var(--surface-alt));
  color: color-mix(in srgb, var(--primary) 82%, var(--text));
}
.study-reinsert-chip[hidden] { display: none !important; }
@media (max-width: 680px) {
  .study-reinsert-chip { margin-left: 0; font-size: 8px; }
}

/* v0.5.3 practice-test authoring, flagged navigation, and clearer creator rail. */
.creator-item-rail { min-height: 390px; }
.creator-item-rail > header > span { min-width: 0; display: grid; gap: 3px; }
.creator-item-rail > header > span > small { color: var(--muted); font-size: 9px; line-height: 1.4; }
.creator-item-list { min-height: 292px; }
.creator-item-placeholder {
  width: 100%;
  min-width: 0;
  min-height: 50px;
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr) auto;
  align-items: center;
  gap: 8px;
  padding: 8px;
  border: 1px dashed color-mix(in srgb, var(--border) 82%, transparent);
  border-radius: 9px;
  background: color-mix(in srgb, var(--surface-alt) 42%, transparent);
  color: var(--muted);
  font: inherit;
  text-align: left;
}
.creator-item-placeholder > span {
  width: 27px;
  height: 27px;
  display: grid;
  place-items: center;
  border: 1px dashed var(--border);
  border-radius: 7px;
  font-size: 10px;
  font-weight: 800;
}
.creator-item-placeholder > div { min-width: 0; display: grid; gap: 1px; }
.creator-item-placeholder strong,
.creator-item-placeholder small { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.creator-item-placeholder strong { font-size: 10px; }
.creator-item-placeholder small { color: var(--muted); font-size: 8px; }
.creator-item-placeholder > svg { justify-self: end; }
.creator-item-placeholder.add-item-placeholder { cursor: pointer; }
.creator-item-placeholder.add-item-placeholder:hover {
  border-color: color-mix(in srgb, var(--primary) 58%, var(--border));
  background: color-mix(in srgb, var(--primary) 8%, var(--surface-alt));
  color: var(--text);
}
.creator-item-placeholder.future-slot { opacity: .48; pointer-events: none; }

.practice-question-settings {
  grid-template-columns: minmax(190px, 1fr) 120px minmax(240px, 1.35fr);
  align-items: end;
}
.creator-checkbox-row {
  min-height: 56px;
  display: grid;
  grid-template-columns: 20px minmax(0, 1fr);
  align-items: center;
  gap: 10px;
  padding: 9px 11px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
  cursor: pointer;
}
.creator-checkbox-row > input[type="checkbox"] {
  width: 18px;
  height: 18px;
  margin: 0;
  accent-color: var(--primary);
  cursor: pointer;
}
.creator-checkbox-row > span { display: none; }
.creator-checkbox-row > div { min-width: 0; display: grid; gap: 2px; }
.creator-checkbox-row strong { font-size: 10px; }
.creator-checkbox-row small { color: var(--muted); font-size: 8px; line-height: 1.35; }
.creator-checkbox-row.is-disabled { opacity: .48; cursor: not-allowed; }

.practice-answer-builder { display: grid; gap: 10px; }
.practice-answer-builder .practice-choice-list { grid-template-columns: 1fr; }
.practice-choice-row {
  grid-template-columns: minmax(78px, auto) minmax(0, 1fr) auto auto auto;
  transition: border-color .15s ease, background .15s ease, box-shadow .15s ease;
}
.practice-choice-row.is-correct {
  border-color: color-mix(in srgb, var(--success) 65%, var(--border));
  background: color-mix(in srgb, var(--success) 9%, var(--surface-alt));
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--success) 18%, transparent);
}
.practice-correct-choice {
  min-width: 54px;
  display: grid;
  grid-template-columns: 22px auto;
  align-items: center;
  gap: 6px;
  color: var(--muted);
  cursor: pointer;
}
.practice-correct-choice input { position: absolute; opacity: 0; pointer-events: none; }
.practice-correct-choice > span {
  width: 22px;
  height: 22px;
  display: grid;
  place-items: center;
  border: 2px solid var(--border);
  border-radius: 50%;
  background: var(--surface);
  color: #fff;
}
.practice-correct-choice small { font-size: 7px; font-weight: 800; text-transform: uppercase; letter-spacing: .045em; }
.practice-correct-choice input:focus-visible + span { outline: 2px solid var(--primary); outline-offset: 2px; }
.practice-correct-choice input:checked + span { border-color: var(--success); background: var(--success); }
.practice-choice-row.is-correct .practice-correct-choice { color: var(--success); }
.practice-choice-footer { display: flex; align-items: center; justify-content: space-between; gap: 10px; flex-wrap: wrap; }
.practice-correct-defined,
.practice-correct-required { display: inline-flex; align-items: center; gap: 5px; font-size: 9px; font-weight: 750; }
.practice-correct-defined { color: var(--success); }
.practice-correct-required { color: var(--warning); }

.practice-question-dot.flagged,
.practice-question-dot.flagged.answered {
  border-color: var(--warning);
  background: color-mix(in srgb, var(--warning) 42%, var(--surface));
  color: var(--text);
}
.practice-question-dot.flagged:hover { border-color: var(--warning); background: color-mix(in srgb, var(--warning) 52%, var(--surface)); }
.practice-question-dot.flagged.current {
  border-color: var(--warning);
  color: var(--text);
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--warning) 30%, transparent);
}
.practice-question-dot.flagged::after { display: none; }
.practice-question-dot.flagged > span {
  position: absolute;
  right: 3px;
  bottom: 2px;
  display: inline-flex;
  color: color-mix(in srgb, var(--warning) 78%, var(--text));
}

@media (max-width: 820px) {
  .practice-question-settings { grid-template-columns: 1fr 110px; }
  .practice-question-settings .creator-checkbox-row { grid-column: 1 / -1; }
  .practice-choice-row { grid-template-columns: minmax(72px, auto) minmax(0, 1fr) auto auto; }
  .practice-choice-row .choice-image-preview { grid-column: 2 / -1; }
}

/* v0.5.3 transition cleanup: only the dedicated floor shadow moves. */
.card-transition-layer,
.card-transition-layer *,
.card-transition-layer::before,
.card-transition-layer::after,
.card-transition-layer *::before,
.card-transition-layer *::after {
  box-shadow: none !important;
  text-shadow: none !important;
}
.card-transition-snapshot,
.card-transition-snapshot *,
.card-transition-snapshot::before,
.card-transition-snapshot::after,
.card-transition-snapshot *::before,
.card-transition-snapshot *::after {
  box-shadow: none !important;
  text-shadow: none !important;
  filter: none;
}
.card-transition-flip .card-transition-layer {
  outline: 0;
  overflow: clip;
  transform-style: preserve-3d;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
}

.creator-item-rail > header > strong {
  flex: 0 0 auto;
  min-width: auto;
  white-space: nowrap;
  font-size: 9px;
}

/* v0.5.3 deadline and ongoing study-plan choices. */
.plan-purpose-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 18px;
}
.plan-purpose-card {
  min-width: 0;
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr);
  align-items: start;
  gap: 14px;
  padding: 18px;
}
.plan-purpose-card h2 { margin: 3px 0 5px; font-size: 17px; }
.plan-purpose-card p { margin: 0; color: var(--muted); font-size: 11px; line-height: 1.55; }
.plan-purpose-icon {
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  border-radius: 13px;
  color: var(--primary);
  background: color-mix(in srgb, var(--primary) 12%, var(--surface-alt));
}
.personal-purpose .plan-purpose-icon {
  color: var(--success);
  background: color-mix(in srgb, var(--success) 12%, var(--surface-alt));
}
.personal-plan-card { border-color: color-mix(in srgb, var(--success) 22%, var(--border)); }
.personal-plan-tile {
  color: var(--success);
  background: color-mix(in srgb, var(--success) 10%, var(--surface-alt));
}
.personal-plan-tile > svg { margin: 1px 0; }
.personal-plan-tile > span { color: var(--success); }
.plan-type-fieldset { margin-top: 0; }
.plan-type-choice-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 11px;
}
.plan-type-choice {
  min-width: 0;
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  align-items: center;
  gap: 11px;
  padding: 14px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface);
  color: var(--text);
  font: inherit;
  text-align: left;
  cursor: pointer;
  transition: border-color .15s ease, background .15s ease, box-shadow .15s ease;
}
.plan-type-choice:hover { border-color: color-mix(in srgb, var(--primary) 48%, var(--border)); }
.plan-type-choice.active {
  border-color: var(--primary);
  background: color-mix(in srgb, var(--primary) 8%, var(--surface));
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--primary) 55%, transparent);
}
.plan-type-choice > span {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  border-radius: 11px;
  color: var(--primary);
  background: color-mix(in srgb, var(--primary) 11%, var(--surface-alt));
}
.plan-type-choice[data-plan-type="personal"] > span {
  color: var(--success);
  background: color-mix(in srgb, var(--success) 11%, var(--surface-alt));
}
.plan-type-choice > div { min-width: 0; display: grid; gap: 3px; }
.plan-type-choice strong { font-size: 12px; }
.plan-type-choice small { color: var(--muted); font-size: 9px; line-height: 1.45; }
.plan-personal-behavior {
  min-height: 100%;
  display: grid;
  align-content: center;
  gap: 5px;
  padding: 13px 14px;
  border: 1px solid color-mix(in srgb, var(--success) 24%, var(--border));
  border-radius: 10px;
  background: color-mix(in srgb, var(--success) 6%, var(--surface-alt));
}
.plan-personal-behavior strong { display: flex; align-items: center; gap: 7px; font-size: 11px; }
.plan-personal-behavior p { margin: 0; color: var(--muted); font-size: 9px; line-height: 1.5; }
.plan-dot.personal { background: var(--success); box-shadow: 0 0 0 4px color-mix(in srgb, var(--success) 13%, transparent); }
.plan-status-row.is-deferred { opacity: .68; }
.plan-deferred-note { display: block; margin-top: 7px; color: var(--warning); font-size: 8px; line-height: 1.4; }
.upcoming-test-metrics { grid-template-columns: repeat(6, minmax(0, 1fr)); }

/* v0.5.3 practice-test answer builder. */
.practice-authoring-grid { grid-template-columns: minmax(0, .88fr) minmax(0, 1.12fr); align-items: stretch; }
.practice-answer-side { min-width: 0; }
.practice-answer-builder { min-height: 100%; align-content: start; }
.choice-image-preview {
  width: 48px;
  height: 38px;
  object-fit: contain;
  border-radius: 7px;
  background: var(--surface);
}

@media (max-width: 900px) {
  .plan-purpose-grid { grid-template-columns: 1fr; }
  .plan-type-choice-grid { grid-template-columns: 1fr; }
  .upcoming-test-metrics { grid-template-columns: repeat(3, 1fr); }
  .upcoming-test-metrics > span:nth-child(3) { border-right: 0; }
  .upcoming-test-metrics > span:nth-child(-n+3) { border-bottom: 1px solid var(--border); }
}
@media (max-width: 700px) {
  .plan-filter { width: 100%; overflow-x: auto; justify-content: flex-start; }
  .plan-filter button { flex: 0 0 auto; }
  .plan-purpose-card { grid-template-columns: 40px minmax(0, 1fr); padding: 14px; }
  .plan-purpose-icon { width: 38px; height: 38px; }
  .upcoming-test-metrics { grid-template-columns: repeat(2, 1fr); }
  .upcoming-test-metrics > span { border-bottom: 1px solid var(--border); }
  .upcoming-test-metrics > span:nth-child(3) { border-right: 1px solid var(--border); }
  .upcoming-test-metrics > span:nth-child(even) { border-right: 0; }
  .upcoming-test-metrics > span:nth-last-child(-n+2) { border-bottom: 0; }
}


@media (max-width: 1120px) {
  .practice-authoring-grid { grid-template-columns: 1fr; }
  .practice-authoring-grid .creator-card-side + .creator-card-side { border-left: 0; border-top: 1px solid var(--border); }
}

/* v0.6.0 deliberate online publishing, catalog, revisions, and account profile. */
.publish-deck-modal .modal-body { overflow-x: hidden; }
.publish-deck-form { min-width: 0; }
.publish-local-note {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: start;
  gap: 10px;
  padding: 12px 13px;
  border: 1px solid color-mix(in srgb, var(--success) 34%, var(--border));
  border-radius: 10px;
  background: color-mix(in srgb, var(--success) 7%, var(--surface-alt));
}
.publish-local-note > svg { margin-top: 1px; color: var(--success); }
.publish-local-note > div { min-width: 0; display: grid; gap: 2px; }
.publish-local-note strong { font-size: 11px; }
.publish-local-note span { color: var(--muted); font-size: 9px; line-height: 1.5; }
.publish-visibility-fieldset {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}
.publish-visibility-fieldset legend { grid-column: 1 / -1; }
.publish-visibility-fieldset .choice-card {
  min-height: 112px;
  grid-template-columns: auto minmax(0, 1fr);
  align-content: start;
}
.publish-visibility-fieldset .choice-card > input { position: absolute; opacity: 0; }
.publish-visibility-fieldset .choice-card > span:first-of-type {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: 10px;
  color: var(--primary);
  background: color-mix(in srgb, var(--primary) 11%, var(--surface));
}
.publish-visibility-fieldset .choice-card > span:last-child { align-self: start; }
.publish-access-explanation {
  margin: -4px 0 0;
  padding: 9px 11px;
  border-radius: 8px;
  color: var(--muted);
  background: color-mix(in srgb, var(--surface-alt) 72%, transparent);
  font-size: 9px;
  line-height: 1.5;
}
.publish-success-panel { display: grid; justify-items: center; gap: 10px; padding: 4px 0 0; text-align: center; }
.publish-success-icon {
  width: 64px;
  height: 64px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  color: var(--success);
  background: color-mix(in srgb, var(--success) 12%, var(--surface-alt));
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--success) 28%, transparent);
}
.publish-success-panel h3 { margin: 2px 0 0; font-size: 21px; }
.publish-success-panel > p { max-width: 520px; margin: 0; color: var(--muted); font-size: 11px; line-height: 1.55; }
.publish-result-facts {
  width: 100%;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 7px;
  margin: 4px 0;
}
.publish-result-facts > div { min-width: 0; display: grid; gap: 2px; padding: 11px; border: 1px solid var(--border); border-radius: 9px; background: var(--surface-alt); }
.publish-result-facts dt { color: var(--muted); font-size: 8px; text-transform: uppercase; letter-spacing: .06em; }
.publish-result-facts dd { margin: 0; overflow: hidden; text-overflow: ellipsis; font-size: 11px; font-weight: 760; }

.online-decks-view,
.published-deck-view { min-width: 0; display: grid; gap: 15px; }
.online-tabs {
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 6px;
  border: 1px solid var(--border);
  border-radius: 11px;
  background: color-mix(in srgb, var(--surface) 96%, transparent);
  overflow-x: auto;
}
.online-tabs a {
  min-height: 39px;
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  padding: 8px 13px;
  border-radius: 8px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 760;
}
.online-tabs a:hover { color: var(--text); background: var(--surface-alt); }
.online-tabs a.active { color: color-mix(in srgb, var(--background) 92%, black); background: var(--primary); box-shadow: var(--shadow-sm); }
.online-deck-results { min-width: 0; display: grid; gap: 13px; }
.online-search { padding: 12px; }
.online-search .search-field { width: min(680px, 100%); grid-template-columns: auto minmax(0, 1fr) auto; }
.online-section-intro { padding: 17px 19px; }
.online-section-intro h2 { margin: 3px 0 5px; font-size: 17px; }
.online-section-intro p { max-width: 850px; margin: 0; color: var(--muted); font-size: 10px; line-height: 1.55; }
.online-deck-grid {
  min-width: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(275px, 1fr));
  gap: 12px;
}
.online-deck-card {
  min-width: 0;
  min-height: 300px;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto auto auto;
  gap: 12px;
  padding: 16px;
  overflow: hidden;
}
.online-deck-card-top { display: flex; align-items: flex-start; justify-content: space-between; gap: 10px; }
.online-deck-icon,
.published-deck-mark {
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  border-radius: 12px;
  color: var(--primary);
  background: color-mix(in srgb, var(--primary) 12%, var(--surface-alt));
}
.online-status-badge {
  max-width: 150px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 25px;
  padding: 4px 8px;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--muted);
  background: var(--surface-alt);
  font-size: 8px;
  font-weight: 800;
  letter-spacing: .045em;
  text-transform: uppercase;
  white-space: nowrap;
}
.online-status-badge.published,
.online-status-badge.public { color: var(--success); border-color: color-mix(in srgb, var(--success) 38%, var(--border)); background: color-mix(in srgb, var(--success) 9%, var(--surface)); }
.online-status-badge.unlisted { color: var(--warning); border-color: color-mix(in srgb, var(--warning) 40%, var(--border)); background: color-mix(in srgb, var(--warning) 8%, var(--surface)); }
.online-status-badge.private,
.online-status-badge.unpublished { color: var(--muted); }
.online-status-badge.draft,
.online-status-badge.pending { color: var(--primary); border-color: color-mix(in srgb, var(--primary) 35%, var(--border)); background: color-mix(in srgb, var(--primary) 8%, var(--surface)); }
.online-status-badge.failed { color: var(--danger); border-color: color-mix(in srgb, var(--danger) 38%, var(--border)); background: color-mix(in srgb, var(--danger) 8%, var(--surface)); }
.online-deck-copy { min-width: 0; }
.online-deck-copy h3 { margin: 0 0 6px; overflow-wrap: anywhere; font-size: 16px; }
.online-deck-copy p { min-height: 4.5em; margin: 0 0 8px; color: var(--muted); font-size: 10px; line-height: 1.5; }
.online-deck-owner { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: var(--muted); font-size: 9px; }
.online-deck-stats,
.online-manage-facts,
.published-deck-details dl {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 6px;
  margin: 0;
}
.online-deck-stats > div,
.online-manage-facts > div,
.published-deck-details dl > div { min-width: 0; display: grid; gap: 1px; padding: 8px 9px; border: 1px solid var(--border); border-radius: 8px; background: var(--surface-alt); }
.online-deck-stats dt,
.online-manage-facts dt,
.published-deck-details dt { color: var(--muted); font-size: 7px; text-transform: uppercase; letter-spacing: .05em; }
.online-deck-stats dd,
.online-manage-facts dd,
.published-deck-details dd { margin: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 10px; font-weight: 760; }
.online-deck-updated { color: var(--muted); font-size: 8px; line-height: 1.4; }
.online-deck-actions { display: flex; align-items: center; gap: 7px; flex-wrap: wrap; }
.online-deck-actions .open-online-deck,
.online-deck-actions .manage-online-deck,
.online-deck-actions .add-online-deck { flex: 1 1 auto; }
.online-auth-panel {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 15px;
  padding: 22px;
}
.online-auth-panel > svg { color: var(--primary); }
.online-auth-panel h2 { margin: 3px 0 4px; font-size: 17px; }
.online-auth-panel p { margin: 0; color: var(--muted); font-size: 10px; line-height: 1.5; }
.online-error-panel { display: grid; place-items: center; gap: 8px; padding: 36px; text-align: center; }
.online-error-panel > svg { color: var(--warning); }
.online-error-panel h1,
.online-error-panel h2 { margin: 2px 0; }
.online-error-panel p { max-width: 650px; margin: 0 0 8px; color: var(--muted); font-size: 11px; line-height: 1.55; }

.online-manage-panel { min-width: 0; display: grid; gap: 15px; }
.online-manage-summary { min-width: 0; display: grid; grid-template-columns: auto minmax(0, 1fr); align-items: center; gap: 12px; padding: 13px; border: 1px solid var(--border); border-radius: 10px; background: var(--surface-alt); }
.online-manage-summary > span { width: 46px; height: 46px; display: grid; place-items: center; border-radius: 11px; color: var(--primary); background: color-mix(in srgb, var(--primary) 11%, var(--surface)); }
.online-manage-summary h3 { margin: 2px 0 1px; overflow-wrap: anywhere; }
.online-manage-summary p { margin: 0; color: var(--muted); font-size: 9px; }
.online-manage-facts { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.online-revision-list { min-width: 0; }
.online-revision-list > article { min-width: 0; display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 2px 10px; padding: 9px 3px; border-top: 1px solid var(--border); }
.online-revision-list > article > span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 10px; font-weight: 730; }
.online-revision-list > article > strong { color: var(--muted); font-size: 8px; text-transform: capitalize; }
.online-revision-list > article > small { grid-column: 1 / -1; color: var(--muted); font-size: 8px; }
.online-manage-actions { display: flex; gap: 8px; flex-wrap: wrap; padding-top: 2px; }

.published-back { justify-self: start; }
.published-deck-hero {
  min-width: 0;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 18px;
  padding: 22px;
}
.published-deck-mark { width: 72px; height: 72px; border-radius: 17px; }
.published-deck-main { min-width: 0; }
.published-deck-main h1 { margin: 7px 0 7px; overflow-wrap: anywhere; font-size: clamp(24px, 3vw, 37px); }
.published-deck-main > p { max-width: 760px; margin: 0 0 8px; color: var(--muted); font-size: 11px; line-height: 1.55; }
.published-author { color: var(--muted); font-size: 9px; }
.published-author strong { color: var(--text); }
.published-deck-actions { max-width: 265px; display: grid; gap: 8px; }
.published-deck-details { display: grid; gap: 15px; padding: 19px; }
.published-deck-details dl { grid-template-columns: repeat(6, minmax(0, 1fr)); }

.online-profile-settings .field { min-width: 0; }
.input-prefix { min-width: 0; display: grid; grid-template-columns: auto minmax(0, 1fr); align-items: stretch; }
.input-prefix > span { display: grid; place-items: center; padding: 0 11px; border: 1px solid var(--border); border-right: 0; border-radius: 9px 0 0 9px; color: var(--muted); background: var(--surface-alt); font-weight: 760; }
.input-prefix input { min-width: 0; border-radius: 0 9px 9px 0; }
.online-profile-actions { display: flex; justify-content: flex-end; gap: 9px; margin-top: 13px; flex-wrap: wrap; }

@media (max-width: 980px) {
  .publish-visibility-fieldset { grid-template-columns: 1fr; }
  .publish-visibility-fieldset .choice-card { min-height: auto; }
  .published-deck-hero { grid-template-columns: auto minmax(0, 1fr); }
  .published-deck-actions { grid-column: 1 / -1; max-width: none; grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .published-deck-details dl { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (max-width: 760px) {
  .share-recipient-grid { grid-template-columns: 1fr; }
  .publish-result-facts { grid-template-columns: 1fr; }
  .online-deck-results,
  .online-deck-grid,
  .online-search,
  .online-deck-card { width: 100%; max-width: 100%; min-width: 0; }
  .online-deck-grid { grid-template-columns: minmax(0, 1fr); }
  .online-deck-card { min-height: 0; }
  .online-auth-panel { grid-template-columns: auto minmax(0, 1fr); }
  .online-auth-panel .button { grid-column: 1 / -1; width: 100%; }
  .online-manage-facts { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .published-deck-hero { grid-template-columns: 1fr; justify-items: start; padding: 17px; }
  .published-deck-mark { width: 58px; height: 58px; }
  .published-deck-actions { width: 100%; grid-template-columns: 1fr; }
  .published-deck-details dl { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .online-profile-actions > * { width: 100%; }
}
@media (max-width: 520px) {
  .online-tabs { width: 100%; }
  .online-search .search-field { grid-template-columns: auto minmax(0, 1fr); }
  .online-search .search-field .button { grid-column: 1 / -1; width: 100%; }
  .online-deck-stats { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .published-deck-details dl { grid-template-columns: 1fr; }
}
.community-deck-access.unlisted { color: var(--warning); }

/* v0.6.1 study-plan, creator-preview, Library-shortcut, and mascot refinements. */
.creator-tabs {
  width: 100%;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  padding: 0;
  border: 0;
  background: transparent;
}
.creator-tabs button {
  min-height: 74px;
  justify-content: flex-start;
  gap: 11px;
  padding: 16px 18px;
  border: 1px solid var(--border);
  border-radius: 13px;
  background: var(--surface);
  color: var(--text);
  font-size: 14px;
  box-shadow: var(--shadow-sm);
}
.creator-tabs button .icon { width: 23px; height: 23px; color: var(--primary); }
.creator-tabs button:hover { transform: translateY(-1px); border-color: color-mix(in srgb, var(--primary) 35%, var(--border)); }
.creator-tabs button.active {
  border-color: color-mix(in srgb, var(--primary) 62%, var(--border));
  background: color-mix(in srgb, var(--primary) 12%, var(--surface));
  box-shadow: 0 10px 24px color-mix(in srgb, var(--primary) 12%, transparent);
}
.creator-image-list { grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); }
.creator-image-chip {
  min-height: 126px;
  grid-template-columns: 142px minmax(0, 1fr) auto;
  gap: 12px;
  padding: 10px;
}
.creator-image-chip > div {
  width: 142px;
  height: 104px;
  border-radius: 9px;
  border: 1px solid color-mix(in srgb, var(--border) 80%, transparent);
}
.creator-image-chip strong { font-size: 12px; }
.creator-image-chip small { font-size: 10px; }
.creator-image-empty { min-height: 90px; }

.plan-purpose-grid { margin-bottom: 14px; }
.plan-purpose-card {
  width: 100%;
  min-height: 132px;
  grid-template-columns: 54px minmax(0, 1fr) 28px;
  align-items: center;
  cursor: pointer;
  color: var(--text);
  text-align: left;
  transition: transform .16s ease, border-color .16s ease, background .16s ease;
}
.plan-purpose-card:hover,
.plan-purpose-card:focus-visible {
  transform: translateY(-2px);
  border-color: color-mix(in srgb, var(--primary) 48%, var(--border));
  background: color-mix(in srgb, var(--primary) 5%, var(--surface));
  outline: none;
}
.plan-purpose-copy { min-width: 0; display: grid; gap: 4px; }
.plan-purpose-copy > strong { font-size: 20px; line-height: 1.15; }
.plan-purpose-copy > small { color: var(--primary); font-size: 11px; font-weight: 760; }
.plan-purpose-copy > p { margin: 5px 0 0; color: var(--muted); font-size: 11px; line-height: 1.55; }
.personal-purpose .plan-purpose-copy > small { color: var(--success); }
.plan-purpose-arrow { color: var(--muted); }
.plan-overload-explainer { margin: 0 0 18px; }
.planning-priority-notice { margin-top: 14px; }

.plan-selection-fieldset { display: grid; gap: 12px; }
.open-scope-picker { width: 100%; justify-content: center; min-height: 52px; }
.selected-scope-summary { min-width: 0; }
.plan-scope-empty {
  min-height: 54px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 12px;
  border: 1px dashed var(--border);
  border-radius: 11px;
  color: var(--muted);
  background: color-mix(in srgb, var(--surface-alt) 45%, transparent);
  font-size: 11px;
}
.plan-scope-chips { display: flex; flex-wrap: wrap; gap: 7px; }
.plan-scope-chips > span {
  max-width: 100%;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 9px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface-alt);
  color: var(--text);
  font-size: 10px;
}
.plan-scope-chips > span svg { flex: 0 0 auto; color: var(--primary); }
.plan-scope-picker { min-width: 0; display: grid; gap: 12px; }
.scope-picker-selection {
  display: grid;
  gap: 9px;
  padding: 13px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: color-mix(in srgb, var(--surface-alt) 64%, var(--surface));
}
.scope-picker-selection > div:first-child { display: flex; justify-content: space-between; gap: 12px; }
.scope-picker-selection > div:first-child > strong { font-size: 11px; }
.scope-picker-breadcrumb {
  min-height: 39px;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 4px;
  padding: 5px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface-alt);
}
.scope-picker-breadcrumb button {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 6px 8px;
  border: 0;
  border-radius: 7px;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-size: 10px;
  font-weight: 720;
}
.scope-picker-breadcrumb button:hover,
.scope-picker-breadcrumb button.active { color: var(--text); background: var(--surface); }
.scope-picker-breadcrumb > span { color: var(--muted); display: inline-flex; }
.scope-picker-items {
  min-height: 280px;
  max-height: min(52vh, 520px);
  display: grid;
  align-content: start;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 9px;
  overflow-y: auto;
  padding: 2px;
}
.scope-picker-item {
  min-width: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: stretch;
  border: 1px solid var(--border);
  border-radius: 11px;
  overflow: hidden;
  background: var(--surface);
}
.scope-picker-item.selected {
  border-color: color-mix(in srgb, var(--primary) 64%, var(--border));
  background: color-mix(in srgb, var(--primary) 9%, var(--surface));
}
.scope-item-toggle {
  min-width: 0;
  display: grid;
  grid-template-columns: 24px 39px minmax(0, 1fr);
  align-items: center;
  gap: 9px;
  padding: 12px;
  border: 0;
  background: transparent;
  color: var(--text);
  text-align: left;
}
.scope-item-toggle:hover { background: color-mix(in srgb, var(--primary) 5%, transparent); }
.scope-item-check {
  width: 21px;
  height: 21px;
  display: grid;
  place-items: center;
  border: 1px solid var(--border);
  border-radius: 6px;
  color: white;
  background: var(--surface-alt);
}
.scope-picker-item.selected .scope-item-check { border-color: var(--primary); background: var(--primary); }
.scope-item-icon {
  width: 37px;
  height: 37px;
  display: grid;
  place-items: center;
  border-radius: 9px;
  color: var(--primary);
  background: color-mix(in srgb, var(--primary) 10%, var(--surface-alt));
}
.scope-item-toggle > span:last-child { min-width: 0; display: grid; gap: 2px; }
.scope-item-toggle strong,
.scope-item-toggle small { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.scope-item-toggle strong { font-size: 11px; }
.scope-item-toggle small { color: var(--muted); font-size: 9px; }
.scope-folder-open {
  min-width: 66px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 3px;
  padding: 0 9px;
  border: 0;
  border-left: 1px solid var(--border);
  background: var(--surface-alt);
  color: var(--muted);
  font: inherit;
  font-size: 9px;
  font-weight: 760;
}
.scope-folder-open:hover { color: var(--primary); }
.scope-picker-empty { grid-column: 1 / -1; min-height: 180px; }

.personal-streak-block {
  display: grid;
  gap: 11px;
  padding: 14px 18px;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: color-mix(in srgb, var(--success) 4%, transparent);
}
.personal-streak-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.personal-streak-head > div { display: grid; gap: 2px; }
.personal-streak-head > div > strong { font-size: 12px; }
.streak-count {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 6px 9px;
  border-radius: 999px;
  color: var(--success);
  background: color-mix(in srgb, var(--success) 11%, var(--surface-alt));
  font-size: 10px;
  font-weight: 780;
}
.personal-streak-days { display: grid; grid-template-columns: repeat(7, minmax(0, 1fr)); gap: 6px; }
.personal-streak-day { display: grid; place-items: center; gap: 4px; color: var(--muted); font-size: 9px; }
.personal-streak-day i {
  width: 29px;
  height: 29px;
  display: grid;
  place-items: center;
  border: 1px solid var(--border);
  border-radius: 50%;
  background: var(--surface-alt);
  font-style: normal;
  font-size: 9px;
}
.personal-streak-day.is-met i { border-color: var(--success); color: white; background: var(--success); }
.personal-streak-day.is-off i { opacity: .55; }
.strict-test-notice { margin-bottom: 13px; }
.plan-personal-behavior { align-self: stretch; }

.library-study-shortcuts { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.metric-card.metric-action {
  width: 100%;
  cursor: pointer;
  color: var(--text);
  text-align: left;
  font: inherit;
  transition: transform .15s ease, border-color .15s ease, background .15s ease;
}
.metric-card.metric-action:hover,
.metric-card.metric-action:focus-visible {
  transform: translateY(-1px);
  border-color: color-mix(in srgb, var(--primary) 48%, var(--border));
  background: color-mix(in srgb, var(--primary) 5%, var(--surface));
  outline: none;
}
.metric-card.metric-action > svg { margin-left: auto; color: var(--muted); }

.deck-primary-action { position: relative; min-height: 104px; overflow: hidden; }
.deck-primary-action .deck-action-mascot {
  width: 76px;
  height: 76px;
  flex: 0 0 auto;
  object-fit: contain;
  filter: drop-shadow(0 7px 9px rgba(0,0,0,.16));
}
.deck-primary-action .study-mascot { width: 82px; height: 82px; }
.deck-primary-action .kram-mascot { width: 70px; height: 70px; }
.deck-primary-action > span { flex: 1 1 auto; }
.deck-primary-action > svg:last-child { flex: 0 0 auto; opacity: .7; }
.deck-detail-footer { flex-wrap: wrap; }
.deck-plan-choice-list { display: grid; gap: 8px; max-height: 46vh; overflow-y: auto; }
.deck-plan-choice {
  display: grid;
  grid-template-columns: 24px minmax(0, 1fr);
  align-items: center;
  gap: 10px;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
  cursor: pointer;
}
.deck-plan-choice input { position: absolute; opacity: 0; pointer-events: none; }
.deck-plan-choice .choice-check { width: 22px; height: 22px; display: grid; place-items: center; border: 1px solid var(--border); border-radius: 6px; color: transparent; }
.deck-plan-choice:has(input:checked) { border-color: color-mix(in srgb, var(--primary) 52%, var(--border)); background: color-mix(in srgb, var(--primary) 8%, var(--surface)); }
.deck-plan-choice:has(input:checked) .choice-check { color: white; border-color: var(--primary); background: var(--primary); }
.deck-plan-choice > span:last-child { display: grid; gap: 2px; }
.deck-plan-choice small { color: var(--muted); font-size: 9px; }
.deck-plan-choice.is-inherited { cursor: default; opacity: .82; }

.today-overload-notice { margin-bottom: 14px; }

@media (max-width: 1120px) {
  .creator-image-list { grid-template-columns: 1fr; }
  .creator-image-chip { grid-template-columns: 118px minmax(0, 1fr) auto; }
  .creator-image-chip > div { width: 118px; height: 90px; }
  .scope-picker-items { grid-template-columns: 1fr; }
}

@media (max-width: 760px) {
  .plan-purpose-grid,
  .library-study-shortcuts { grid-template-columns: 1fr; }
  .plan-purpose-card { min-height: 112px; grid-template-columns: 46px minmax(0, 1fr) 22px; padding: 14px; }
  .plan-purpose-copy > strong { font-size: 17px; }
  .personal-streak-head { align-items: flex-start; flex-direction: column; }
  .personal-streak-days { gap: 3px; }
  .personal-streak-day i { width: 25px; height: 25px; }
  .scope-picker-items { max-height: 44vh; }
  .scope-picker-item { grid-template-columns: minmax(0, 1fr) 57px; }
  .scope-folder-open { min-width: 57px; padding: 0 5px; }
  .deck-primary-action .deck-action-mascot { width: 62px; height: 62px; }
}

/* v0.6.1 — large, readable Creator image previews. */
.creator-image-list {
  grid-template-columns: minmax(0, 1fr);
}
.creator-image-chip {
  min-height: 0;
  grid-template-columns: minmax(0, 1fr) auto;
  grid-template-rows: auto auto;
  align-items: center;
  gap: 10px 12px;
  padding: 11px;
}
.creator-image-chip > div {
  grid-column: 1 / -1;
  width: 100%;
  height: clamp(180px, 17vw, 270px);
  padding: 8px;
  border: 1px solid color-mix(in srgb, var(--border) 86%, transparent);
  border-radius: 10px;
  background:
    linear-gradient(45deg, color-mix(in srgb, var(--surface-alt) 85%, transparent) 25%, transparent 25%) 0 0 / 18px 18px,
    linear-gradient(-45deg, color-mix(in srgb, var(--surface-alt) 85%, transparent) 25%, transparent 25%) 0 9px / 18px 18px,
    linear-gradient(45deg, transparent 75%, color-mix(in srgb, var(--surface-alt) 85%, transparent) 75%) 9px -9px / 18px 18px,
    linear-gradient(-45deg, transparent 75%, color-mix(in srgb, var(--surface-alt) 85%, transparent) 75%) -9px 0 / 18px 18px,
    var(--surface);
}
.creator-image-chip img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
}
.creator-image-chip > span { grid-column: 1; }
.creator-image-chip > .remove-side-image { grid-column: 2; grid-row: 2; }
.creator-image-empty { min-height: 126px; }

@media (max-width: 1120px) {
  .creator-image-chip > div { height: clamp(170px, 27vw, 250px); }
}

/* Prevent intrinsic image dimensions from forcing a tall preview beyond its fixed viewport. */
.creator-image-chip > div { min-width: 0; min-height: 0; box-sizing: border-box; }
.creator-image-chip img { min-width: 0; min-height: 0; display: block; }

/* v0.6.3 — legible, uncropped Library deck previews. */
.deck-thumbnail.has-image { position: relative; isolation: isolate; background: var(--surface-alt); }
.deck-thumbnail-backdrop {
  position: absolute;
  inset: -10%;
  z-index: 0;
  width: 120% !important;
  height: 120% !important;
  object-fit: cover !important;
  filter: blur(13px) saturate(.82);
  opacity: .24;
  transform: scale(1.03);
}
.deck-thumbnail-image {
  position: relative;
  z-index: 1;
  width: 100% !important;
  height: 100% !important;
  object-fit: contain !important;
  object-position: center !important;
  padding: 7px;
  filter: drop-shadow(0 4px 7px rgb(0 0 0 / .16));
}
.deck-thumbnail.large .deck-thumbnail-image,
.deck-overview-thumbnail .deck-thumbnail-image { padding: 9px; }

/* v0.6.3 — Library context, scheduling controls, mascots, and Creator navigation. */
.library-context-row {
  min-width: 0;
  min-height: 52px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin: -9px 0 14px;
}
.library-context-row .breadcrumbs { min-width: 0; margin: 0; }
.library-study-time {
  flex: 0 0 auto;
  min-height: 46px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 4px 11px 4px 5px;
  border: 1px solid color-mix(in srgb, var(--primary) 22%, var(--border));
  border-radius: 999px;
  background: color-mix(in srgb, var(--primary) 5%, var(--surface));
  box-shadow: var(--shadow-sm);
}
.library-study-time img {
  width: 39px;
  height: 39px;
  object-fit: contain;
  filter: drop-shadow(0 4px 5px rgb(0 0 0 / .12));
}
.library-study-time > span { display: grid; gap: 1px; }
.library-study-time small { color: var(--muted); font-size: 8px; font-weight: 750; text-transform: uppercase; letter-spacing: .07em; }
.library-study-time strong { font-size: 12px; white-space: nowrap; }

.plan-purpose-card {
  min-height: 226px;
  grid-template-columns: 66px minmax(0, 1fr) 30px;
  align-content: center;
  padding: 26px;
}
.plan-purpose-icon { width: 58px; height: 58px; }
.plan-purpose-copy { align-content: center; }
.plan-purpose-copy > strong { font-size: 23px; }
.plan-purpose-copy > p { max-width: 46ch; margin-top: 11px; font-size: 12px; line-height: 1.65; }

.scope-picker-item.folder {
  border-color: color-mix(in srgb, var(--primary) 24%, var(--border));
  background: color-mix(in srgb, var(--primary) 5%, var(--surface));
}
.scope-picker-item.folder .scope-item-icon {
  color: var(--primary);
  background: color-mix(in srgb, var(--primary) 14%, var(--surface-alt));
}
.scope-picker-item.deck {
  background: color-mix(in srgb, var(--surface-alt) 42%, var(--surface));
}
.scope-picker-item.deck .scope-item-icon {
  color: color-mix(in srgb, var(--text) 68%, var(--primary));
  background: color-mix(in srgb, var(--muted) 9%, var(--surface-alt));
}
.scope-picker-item.folder.selected,
.scope-picker-item.deck.selected {
  border-color: color-mix(in srgb, var(--primary) 68%, var(--border));
  background: color-mix(in srgb, var(--primary) 11%, var(--surface));
}

.test-schedule-field {
  display: grid;
  gap: 10px;
  padding: 14px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: color-mix(in srgb, var(--surface-alt) 48%, var(--surface));
}
.test-schedule-heading { display: grid; gap: 3px; }
.test-schedule-heading > span { font-size: 11px; font-weight: 780; }
.test-schedule-heading > small { color: var(--muted); font-size: 9px; line-height: 1.45; }
.test-schedule-grid { display: grid; grid-template-columns: minmax(190px, .85fr) minmax(330px, 1.4fr); gap: 10px; }
.test-date-control,
.test-time-control {
  min-width: 0;
  margin: 0;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
}
.test-date-control { display: grid; gap: 8px; }
.test-date-control > span,
.test-time-control > legend {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 0 2px;
  color: var(--muted);
  font-size: 9px;
  font-weight: 780;
  text-transform: uppercase;
  letter-spacing: .06em;
}
.test-date-control input { min-height: 44px; font-size: 13px; }
.test-time-control { display: grid; gap: 7px; }
.test-time-control > legend { float: none; }
.test-time-selects {
  display: grid;
  grid-template-columns: minmax(70px, 1fr) auto minmax(76px, 1fr) minmax(92px, 1.1fr);
  align-items: end;
  gap: 7px;
}
.test-time-selects label { min-width: 0; display: grid; gap: 4px; }
.test-time-selects label > span { color: var(--muted); font-size: 8px; }
.test-time-selects select { width: 100%; min-height: 44px; padding-left: 11px; font-size: 13px; font-weight: 730; }
.time-separator { align-self: end; display: grid; place-items: center; min-height: 44px; color: var(--muted); font-size: 19px; font-weight: 800; }
.meridiem-control select { color: var(--primary); }

.practice-keyboard-hint {
  display: flex;
  align-items: flex-start;
  gap: 7px;
  margin-top: auto;
  padding: 9px;
  border: 1px solid color-mix(in srgb, var(--primary) 18%, var(--border));
  border-radius: 9px;
  color: var(--muted);
  background: color-mix(in srgb, var(--primary) 4%, var(--surface-alt));
  font-size: 8px;
  line-height: 1.65;
}
.practice-keyboard-hint svg { flex: 0 0 auto; margin-top: 2px; color: var(--primary); }
.practice-keyboard-hint b { color: var(--text); font-weight: 780; }
.practice-result-detail {
  position: relative;
  grid-template-columns: minmax(0, 1fr) 76px;
  align-items: start;
}
.practice-review-prompt { grid-column: 1; grid-row: 1; }
.practice-review-mascot {
  grid-column: 2;
  grid-row: 1;
  width: 72px;
  height: 72px;
  align-self: start;
  justify-self: center;
  margin-top: 15px;
  object-fit: contain;
  pointer-events: none;
  user-select: none;
  filter: drop-shadow(0 7px 8px rgb(0 0 0 / .14));
}
.practice-review-mascot.correct { transform: rotate(1.5deg); }
.practice-review-mascot.wrong { transform: rotate(-1.5deg); }
.practice-result-detail > :not(.practice-review-mascot):not(.practice-review-prompt) { grid-column: 1 / -1; }

.creator-local-banner { grid-template-columns: 70px minmax(0, 1fr) auto; padding: 8px 14px 8px 8px; }
.creator-page-mascot {
  width: 66px;
  height: 66px;
  object-fit: contain;
  filter: drop-shadow(0 6px 7px rgb(0 0 0 / .13));
}
.creator-local-banner strong { display: inline-flex; align-items: center; gap: 6px; }

.online-tabs-mascot {
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-left: auto;
  padding: 0 7px 0 4px;
  border-left: 1px solid var(--border);
  color: var(--muted);
  white-space: nowrap;
}
.online-tabs-mascot img { width: 47px; height: 47px; object-fit: contain; filter: drop-shadow(0 5px 6px rgb(0 0 0 / .12)); }
.online-tabs-mascot small { font-size: 8px; font-weight: 760; text-transform: uppercase; letter-spacing: .06em; }

.creator-question-rail-row {
  position: relative;
  min-width: 0;
  display: grid;
  grid-template-columns: 18px minmax(0, 1fr) 30px;
  align-items: center;
  gap: 3px;
  border: 1px solid transparent;
  border-radius: 10px;
  transition: opacity .14s ease, border-color .14s ease, background .14s ease;
}
.creator-question-rail-row.active { background: color-mix(in srgb, var(--primary) 4%, transparent); }
.creator-question-rail-row.is-dragging { opacity: .42; }
.creator-question-rail-row.drop-before::before,
.creator-question-rail-row.drop-after::after {
  content: "";
  position: absolute;
  z-index: 3;
  left: 5px;
  right: 5px;
  height: 3px;
  border-radius: 999px;
  background: var(--primary);
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--primary) 16%, transparent);
}
.creator-question-rail-row.drop-before::before { top: -4px; }
.creator-question-rail-row.drop-after::after { bottom: -4px; }
.creator-question-drag-handle { display: grid; place-items: center; color: var(--muted); cursor: grab; }
.creator-question-rail-row:active .creator-question-drag-handle { cursor: grabbing; }
.creator-question-rail-row .creator-item-row { padding: 7px 5px; }
.creator-question-menu { position: relative; }
.creator-question-menu > summary { list-style: none; }
.creator-question-menu > summary::-webkit-details-marker { display: none; }
.creator-question-menu-popover {
  position: fixed;
  z-index: 120;
  width: 190px;
  display: grid;
  gap: 9px;
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
  box-shadow: var(--shadow-lg);
}
.creator-question-menu-popover label { display: grid; gap: 5px; }
.creator-question-menu-popover label > span { color: var(--muted); font-size: 9px; }
.creator-question-menu-popover select { width: 100%; }
.creator-drag-reorder-note { display: inline-flex; align-items: center; gap: 6px; color: var(--muted); font-size: 9px; }
.practice-question-actions { align-items: center; }

@media (max-width: 980px) {
  .test-schedule-grid { grid-template-columns: 1fr; }
  .online-tabs-mascot small { display: none; }
}

@media (max-width: 760px) {
  .library-context-row { align-items: flex-start; flex-direction: column; }
  .library-study-time { align-self: flex-end; margin-top: -5px; }
  .plan-purpose-card { min-height: 150px; padding: 18px; }
  .test-time-selects { grid-template-columns: minmax(58px, 1fr) auto minmax(64px, 1fr) minmax(86px, 1.1fr); }
  .practice-keyboard-hint { display: none; }
  .practice-result-detail { grid-template-columns: minmax(0, 1fr) 54px; }
  .practice-review-mascot { width: 51px; height: 51px; margin-top: 13px; }
  .creator-local-banner { grid-template-columns: 52px minmax(0, 1fr); }
  .creator-page-mascot { width: 49px; height: 49px; }
  .creator-local-banner .status-pill { grid-column: 2; justify-self: start; }
  .online-tabs-mascot { display: none; }
}

/* Performance containment: isolate large, independently rendered collections
   without changing their visual styling or interaction model. */
.library-items,
.session-history-list,
.active-session-grid,
.plan-card-list,
.online-deck-results,
.online-deck-grid,
.practice-result-list,
.community-group-grid,
.community-friend-grid,
.community-deck-grid,
.community-member-grid,
.scope-picker-items,
.creator-import-grid {
  contain: layout style;
}

.deck-thumbnail,
.item-thumbnail-host,
.creator-image-preview,
.study-card-stage,
.occlusion-canvas-shell,
.capture-stage {
  contain: layout paint;
}

@supports (content-visibility: auto) {
  .library-item {
    content-visibility: auto;
    contain-intrinsic-size: auto 217px;
  }

  .library-items.list .library-item {
    contain-intrinsic-size: auto 72px;
  }

  .library-items.grid .folder-item {
    contain-intrinsic-size: auto 113px;
  }

  .session-history-row {
    content-visibility: auto;
    contain-intrinsic-size: auto 70px;
  }

  .active-session-card,
  .plan-card,
  .online-deck-card,
  .community-group-card,
  .community-friend-card,
  .community-deck-card,
  .community-member-card,
  .scope-picker-item,
  .creator-import-card {
    content-visibility: auto;
    contain-intrinsic-size: auto 120px;
  }

  .practice-result-item {
    content-visibility: auto;
    contain-intrinsic-size: auto 68px;
  }
}

/* v0.6.4 — Today controls, modal continuity, Library navigation, and mascot placement. */
.metric-card.is-overloaded > div > strong,
.overloaded-number { color: var(--warning) !important; }

.library-study-time {
  min-width: 205px;
  min-height: 69px;
  gap: 12px;
  padding: 7px 17px 7px 8px;
}
.library-study-time img { width: 58px; height: 58px; }
.library-study-time small { font-size: 10px; letter-spacing: .065em; }
.library-study-time strong { font-size: 17px; }

.parent-folder-item {
  border-style: dashed !important;
  border-color: color-mix(in srgb, var(--primary) 32%, var(--border)) !important;
  background: color-mix(in srgb, var(--primary) 3%, var(--surface)) !important;
}
.parent-folder-item .folder-visual { color: var(--primary); }
.parent-folder-item .item-copy strong { color: var(--primary); }

.deck-plan-target {
  min-width: 0;
  display: grid;
  grid-template-columns: 43px minmax(0, 1fr);
  align-items: center;
  gap: 12px;
  margin-bottom: 13px;
  padding: 12px 14px;
  border: 1px solid color-mix(in srgb, var(--primary) 32%, var(--border));
  border-radius: 12px;
  background: color-mix(in srgb, var(--primary) 6%, var(--surface-alt));
  color: var(--primary);
}
.deck-plan-target > svg {
  width: 39px;
  height: 39px;
  padding: 8px;
  border-radius: 10px;
  background: color-mix(in srgb, var(--primary) 12%, var(--surface));
}
.deck-plan-target > div { min-width: 0; display: grid; gap: 2px; }
.deck-plan-target small { color: var(--muted); font-size: 9px; text-transform: uppercase; letter-spacing: .06em; }
.deck-plan-target strong { color: var(--text); font-size: 13px; line-height: 1.35; overflow-wrap: anywhere; }
.deck-plan-choice {
  grid-template-columns: 22px minmax(0, 1fr);
  align-items: start;
  gap: 11px;
  cursor: pointer;
}
.deck-plan-choice input.deck-plan-native-check {
  position: static;
  width: 19px;
  height: 19px;
  margin: 1px 0 0;
  opacity: 1;
  pointer-events: auto;
  accent-color: var(--primary);
}
.deck-plan-choice-copy { min-width: 0; display: grid; gap: 3px; }
.deck-plan-choice-copy strong { line-height: 1.35; overflow-wrap: anywhere; }
.deck-plan-choice.is-inherited input { cursor: not-allowed; }

.today-category-grid { align-items: stretch; }
.today-category-card {
  min-height: 178px;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  grid-template-rows: minmax(0, 1fr) auto;
  align-items: start;
  gap: 13px;
  padding: 20px;
}
.today-category-card .metric-icon { margin-top: 2px; }
.today-category-copy { align-content: start; gap: 3px !important; }
.today-category-copy > strong { font-size: 29px; }
.today-category-copy > span { font-size: 13px !important; }
.today-category-copy > small { margin-top: 7px; line-height: 1.45; }
.today-category-toggle {
  grid-column: 1 / -1;
  min-height: 38px;
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 9px;
  background: color-mix(in srgb, var(--surface-alt) 68%, var(--surface));
  color: var(--text);
  cursor: pointer;
  font-size: 10px;
  font-weight: 750;
}
.today-category-toggle input,
.today-plan-include input,
.plan-review-checkbox {
  width: 18px;
  height: 18px;
  flex: 0 0 auto;
  accent-color: var(--primary);
}
.today-plan-pacing-panel { overflow: hidden; margin-top: 16px; }
.today-plan-pacing-head { align-items: flex-start; padding: 20px 22px; border-bottom: 1px solid var(--border); }
.today-plan-pacing-head p { max-width: 760px; margin: 5px 0 0; color: var(--muted); font-size: 10px; line-height: 1.55; }
.today-plan-pacing-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  padding: 16px;
}
.today-plan-pacing-card {
  min-width: 0;
  display: grid;
  gap: 12px;
  padding: 18px;
  border: 1px solid color-mix(in srgb, var(--primary) 25%, var(--border));
  border-radius: 13px;
  background: color-mix(in srgb, var(--primary) 4%, var(--surface));
  box-shadow: var(--shadow-sm);
}
.today-plan-pacing-card.personal {
  border-color: color-mix(in srgb, var(--success) 28%, var(--border));
  background: color-mix(in srgb, var(--success) 4%, var(--surface));
}
.today-plan-pacing-card.is-skipped { opacity: .72; }
.today-plan-pacing-card > header { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.today-plan-type { display: inline-flex; align-items: center; gap: 6px; color: var(--primary); font-size: 9px; font-weight: 780; text-transform: uppercase; letter-spacing: .055em; }
.today-plan-pacing-card.personal .today-plan-type { color: var(--success); }
.today-plan-include {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--text);
  font-size: 9px;
  font-weight: 730;
  cursor: pointer;
  white-space: nowrap;
}
.today-plan-title { min-width: 0; display: flex; align-items: start; justify-content: space-between; gap: 12px; }
.today-plan-title h3 { min-width: 0; margin: 0; font-size: 17px; line-height: 1.25; overflow-wrap: anywhere; }
.today-plan-title strong { flex: 0 0 auto; color: var(--primary); font-size: 24px; }
.today-plan-pacing-card.personal .today-plan-title strong { color: var(--success); }
.today-plan-pacing-card > p { margin: -5px 0 0; color: var(--muted); font-size: 10px; }
.today-plan-facts { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border: 1px solid var(--border); border-radius: 10px; overflow: hidden; }
.today-plan-facts > span { min-width: 0; display: grid; gap: 2px; padding: 10px 8px; border-right: 1px solid var(--border); text-align: center; }
.today-plan-facts > span:last-child { border-right: 0; }
.today-plan-facts b { font-size: 15px; }
.today-plan-facts small { color: var(--muted); font-size: 8px; line-height: 1.25; }
.today-plan-pacing-card > footer { min-height: 42px; display: flex; align-items: flex-start; gap: 7px; padding: 9px 10px; border-radius: 9px; background: color-mix(in srgb, var(--surface-alt) 72%, transparent); color: var(--muted); font-size: 9px; line-height: 1.45; }
.today-plan-pacing-card > footer svg { flex: 0 0 auto; margin-top: 1px; }

.study-plans-view .section-toolbar {
  align-items: stretch;
  flex-direction: column;
  gap: 10px;
  margin-top: 13px;
}
.study-plans-view .section-toolbar > div:first-child { justify-content: space-between; }
.study-plans-view .plan-filter {
  width: 100%;
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 5px;
  padding: 5px;
}
.study-plans-view .plan-filter button {
  min-width: 0;
  min-height: 47px;
  padding: 9px 10px;
  font-size: 11px;
}

.plan-review-option {
  display: grid;
  grid-template-columns: 21px minmax(0, 1fr);
  align-items: start;
  gap: 10px;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: color-mix(in srgb, var(--surface-alt) 60%, var(--surface));
  cursor: pointer;
}
.plan-review-option > span { min-width: 0; display: grid; gap: 3px; }
.plan-review-option strong { font-size: 11px; }
.plan-review-option small { color: var(--muted); font-size: 9px; line-height: 1.45; }

.scope-picker-item.folder {
  border-color: color-mix(in srgb, #22a99d 48%, var(--border));
  background: color-mix(in srgb, #22a99d 11%, var(--surface));
}
.scope-picker-item.folder .scope-item-icon {
  color: #1aa398;
  background: color-mix(in srgb, #22a99d 18%, var(--surface-alt));
}
.scope-picker-item.folder .scope-folder-open { background: color-mix(in srgb, #22a99d 10%, var(--surface-alt)); }
.scope-picker-item.folder.selected {
  border-color: #22a99d;
  background: color-mix(in srgb, #22a99d 17%, var(--surface));
}
.scope-picker-item.folder.selected .scope-item-check { border-color: #22a99d; background: #22a99d; }
.scope-picker-item.deck.selected {
  border-color: color-mix(in srgb, var(--primary) 68%, var(--border));
  background: color-mix(in srgb, var(--primary) 11%, var(--surface));
}

.practice-result-detail { grid-template-columns: minmax(0, 1fr); }
.practice-review-prompt,
.practice-result-detail > * { grid-column: 1; }
.practice-review-mascot { display: none !important; }

.creator-local-banner { grid-template-columns: minmax(0, 1fr) auto; padding: 12px 15px; }
.mascot-view-header { position: relative; align-items: center; }
.header-mascot { flex: 0 0 auto; object-fit: contain; pointer-events: none; user-select: none; filter: drop-shadow(0 8px 10px rgb(0 0 0 / .14)); }
.creator-header-mascot { width: 96px; height: 96px; margin: -12px 8px -10px auto; }
.online-header-mascot { width: 91px; height: 91px; margin: -5px 14px -15px auto; }
.online-tabs-mascot,
.creator-page-mascot { display: none !important; }

@media (max-width: 1040px) {
  .today-plan-pacing-grid { grid-template-columns: 1fr; }
  .study-plans-view .plan-filter { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .header-mascot { width: 76px; height: 76px; margin-right: 0; }
}

@media (max-width: 760px) {
  .library-study-time { min-width: 190px; min-height: 62px; }
  .library-study-time img { width: 50px; height: 50px; }
  .library-study-time small { font-size: 9px; }
  .library-study-time strong { font-size: 15px; }
  .today-category-card { min-height: 144px; }
  .today-plan-pacing-grid { padding: 11px; }
  .today-plan-facts { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .today-plan-facts > span:nth-child(2) { border-right: 0; }
  .today-plan-facts > span:nth-child(-n+2) { border-bottom: 1px solid var(--border); }
  .study-plans-view .plan-filter { display: flex; overflow-x: auto; }
  .study-plans-view .plan-filter button { flex: 0 0 auto; min-width: 118px; }
  .header-mascot { display: none; }
  .creator-local-banner { grid-template-columns: 1fr; }
}

/* v0.6.6 — Library accuracy and card/question navigator refinements. */
.library-study-shortcuts { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.library-due-metric {
  display: grid;
  grid-template-rows: minmax(0, 1fr) auto;
  align-items: stretch;
  gap: 0;
  padding: 0;
  overflow: hidden;
}
.library-metric-main {
  width: 100%;
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 17px 18px 12px;
  border: 0;
  background: transparent;
  color: var(--text);
  text-align: left;
  font: inherit;
  cursor: pointer;
}
.library-metric-main:disabled { cursor: default; opacity: .72; }
.library-metric-main:not(:disabled):hover,
.library-metric-main:not(:disabled):focus-visible {
  background: color-mix(in srgb, var(--primary) 5%, transparent);
  outline: none;
}
.library-metric-copy { min-width: 0; display: grid; flex: 1; }
.library-metric-copy > small { color: var(--muted); font-size: 12px; }
.library-metric-copy > strong { color: var(--primary); font-size: 25px; line-height: 1.15; }
.library-due-metric.is-overloaded .library-metric-copy > strong { color: var(--warning); }
.library-metric-copy > span { margin-top: 2px; color: var(--text); font-size: 12px; font-weight: 700; }
.library-metric-main > svg:last-child { flex: 0 0 auto; margin-left: auto; color: var(--muted); }
.library-plan-review-toggle {
  min-height: 40px;
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 8px 13px;
  border-top: 1px solid var(--border);
  background: color-mix(in srgb, var(--surface-alt) 68%, var(--surface));
  color: var(--text);
  cursor: pointer;
  font-size: 10px;
  font-weight: 750;
}
.library-plan-review-toggle input { width: 18px; height: 18px; flex: 0 0 auto; accent-color: var(--primary); }

.deck-focus-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }

.creator-start-prompt {
  min-height: 210px;
  display: grid;
  place-content: center;
  justify-items: center;
  gap: 8px;
  padding: 36px 24px;
  text-align: center;
  color: var(--muted);
}
.creator-start-prompt h2 { margin: 0; color: var(--text); font-size: clamp(22px, 2.4vw, 31px); }
.creator-start-prompt p { max-width: 690px; margin: 0; line-height: 1.6; }
.creator-import-intro {
  padding: 2px 3px 14px;
  border-bottom: 1px solid var(--border);
}
.creator-import-intro h2 { margin: 4px 0 5px; }
.creator-import-intro p { display: flex; align-items: flex-start; gap: 8px; max-width: 860px; margin: 0; color: var(--muted); line-height: 1.55; }
.creator-import-intro p > svg { flex: 0 0 auto; margin-top: 2px; color: var(--success); }

.study-plans-view .plan-filter { grid-template-columns: repeat(5, minmax(0, 1fr)); }

@media (max-width: 1120px) {
  .library-study-shortcuts { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .library-due-metric { grid-column: 1 / -1; }
  .deck-focus-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 760px) {
  .library-study-shortcuts { grid-template-columns: 1fr; }
  .library-due-metric { grid-column: auto; }
  .deck-focus-grid { grid-template-columns: 1fr; }
  .creator-start-prompt { min-height: 160px; padding: 24px 15px; }
}
@media (max-width: 1040px) {
  .study-plans-view .plan-filter { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (max-width: 760px) {
  .study-plans-view .plan-filter { display: flex; overflow-x: auto; }
  .study-plans-view .plan-filter button { flex: 0 0 auto; min-width: 124px; }
}


/* v0.6.6 creator navigation, Library interaction, and empty-state refinements. */
.creator-tabs button { min-height: 111px; }

.library-items.grid .folder-item.folder-card-clickable,
.library-items.list .folder-item.folder-card-clickable { cursor: pointer; }
.library-items.grid .folder-item.folder-card-clickable:hover .folder-visual,
.library-items.list .folder-item.folder-card-clickable:hover .folder-visual {
  color: color-mix(in srgb, var(--primary) 86%, var(--text));
  background: color-mix(in srgb, var(--primary) 17%, var(--surface-alt));
}
.library-empty-state {
  grid-column: 1 / -1;
  min-height: 210px;
  gap: 9px;
  padding: 36px 24px;
}
.library-empty-state h3 { font-size: clamp(22px, 2.4vw, 31px); }
.library-empty-state p { max-width: 690px; font-size: 12px; line-height: 1.6; }
.library-empty-state .empty-state-icon { width: 64px; height: 64px; border-radius: 18px; }

.creator-item-rail-row {
  position: relative;
  min-width: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 31px;
  align-items: center;
  gap: 3px;
  border: 1px solid transparent;
  border-radius: 10px;
  cursor: grab;
  transition: opacity .14s ease, border-color .14s ease, background .14s ease;
}
.creator-item-rail-row:active { cursor: grabbing; }
.creator-item-rail-row.active { background: color-mix(in srgb, var(--primary) 4%, transparent); }
.creator-item-rail-row.is-dragging { opacity: .42; }
.creator-item-rail-row.drop-before::before,
.creator-item-rail-row.drop-after::after {
  content: "";
  position: absolute;
  z-index: 3;
  left: 5px;
  right: 5px;
  height: 3px;
  border-radius: 999px;
  background: var(--primary);
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--primary) 16%, transparent);
}
.creator-item-rail-row.drop-before::before { top: -4px; }
.creator-item-rail-row.drop-after::after { bottom: -4px; }
.creator-item-rail-row .creator-item-row { padding: 7px 5px; cursor: inherit; }
.creator-item-menu { position: relative; }
.creator-item-menu > summary { list-style: none; }
.creator-item-menu > summary::-webkit-details-marker { display: none; }
.creator-item-menu-trigger {
  opacity: 0;
  pointer-events: none;
  color: var(--muted);
  transition: opacity .14s ease, color .14s ease, background .14s ease, transform .14s ease;
}
.creator-item-rail-row:hover .creator-item-menu-trigger,
.creator-item-rail-row.active .creator-item-menu-trigger,
.creator-item-menu[open] .creator-item-menu-trigger {
  opacity: 1;
  pointer-events: auto;
}
.creator-item-menu-trigger:hover,
.creator-item-menu[open] .creator-item-menu-trigger {
  color: var(--primary);
  background: color-mix(in srgb, var(--primary) 13%, var(--surface-alt));
  transform: scale(1.06);
}
.creator-item-menu-popover {
  position: fixed;
  z-index: 140;
  width: 260px;
  display: grid;
  gap: 3px;
  padding: 7px;
  border: 1px solid var(--border);
  border-radius: 11px;
  background: var(--surface);
  box-shadow: var(--shadow-lg);
}
.creator-item-menu-popover > button {
  width: 100%;
  min-height: 34px;
  display: grid;
  grid-template-columns: 20px minmax(0, 1fr);
  align-items: center;
  gap: 8px;
  padding: 7px 9px;
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: var(--text);
  font: inherit;
  font-size: 10px;
  font-weight: 700;
  text-align: left;
  cursor: pointer;
}
.creator-item-menu-popover > button:hover:not(:disabled) { background: var(--surface-alt); }
.creator-item-menu-popover > button.danger { color: var(--danger); }
.creator-item-menu-popover > button.danger:hover:not(:disabled) { background: color-mix(in srgb, var(--danger) 10%, var(--surface-alt)); }
.creator-item-menu-popover > button:disabled { opacity: .38; cursor: not-allowed; }
.creator-move-position-form { display: grid; gap: 15px; }
.creator-move-position-form > p { margin: 0; color: var(--muted); line-height: 1.55; }
.creator-editor-delete-zone {
  min-height: 70px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 13px 16px;
  border-top: 1px solid var(--border);
  background: color-mix(in srgb, var(--surface-alt) 38%, transparent);
}
.creator-editor-delete-zone > div { min-width: 0; display: grid; gap: 2px; }
.creator-editor-delete-zone strong { font-size: 11px; }
.creator-editor-delete-zone span { color: var(--muted); font-size: 9px; line-height: 1.4; }
.creator-card-actions,
.creator-question-drag-handle,
.creator-question-menu,
.creator-drag-reorder-note { display: none !important; }

@media (max-width: 760px) {
  .creator-tabs button { min-height: 88px; }
  .creator-editor-delete-zone { align-items: stretch; flex-direction: column; }
  .creator-editor-delete-zone .button { width: 100%; }
}