/* Original sample player. Scale and exceptions are documented in DESIGN.md §8. */
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; border: 0; }
.demo-jump { color: var(--text-soft); font-size: .95rem; padding: .6rem .2rem; }
.demo-jump:hover { color: var(--text); text-decoration: none; }
.demo-jump span { margin-left: .4rem; }
.sample-demo { margin: 3.5rem auto 0; max-width: 960px; text-align: left; scroll-margin-top: 6rem; }
.sample-demo [hidden] { display: none !important; }
.sample-intro { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: .4rem 1rem; margin-bottom: 1rem; }
.sample-intro h2 { font: 500 1rem/1.5 var(--display); letter-spacing: -.01em; margin: 0; }
.sample-intro p, .sample-footer p { color: var(--text-soft); font-size: .875rem; }
.sample-player { position: relative; border: 1px solid var(--line); border-radius: var(--r-l); background: var(--bg-raised); overflow: hidden; }
.sample-player button { font-family: inherit; cursor: pointer; }
.sample-player button:disabled { cursor: default; opacity: .55; }
.sample-player svg { display: block; width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; flex: none; }
.sample-topbar { min-height: 60px; padding: .4rem 1.2rem; display: flex; align-items: center; justify-content: space-between; gap: .75rem; }
.sample-label { color: var(--text); font-size: .875rem; }
.sample-label > span { color: var(--text-soft); }
.sample-toggle { display: flex; align-items: center; gap: .7rem; background: none; border: none; padding: .3rem 0 .3rem .3rem; color: var(--text-soft); font-size: .875rem; min-height: 44px; }
.sample-toggle b { color: var(--text); font-weight: 500; }
.toggle-track { width: 38px; height: 22px; border-radius: 22px; background: var(--accent-deep); padding: 3px; flex: none; }
.toggle-track::after { content: ''; display: block; width: 16px; height: 16px; border-radius: 50%; background: var(--accent-ink); transform: translateX(16px); transition: transform .18s ease; }
.sample-toggle[aria-checked="false"] .toggle-track { background: var(--text-faint); }
.sample-toggle[aria-checked="false"] .toggle-track::after { transform: translateX(0); background: var(--bg); }
.sample-stage { position: relative; aspect-ratio: 16 / 9; isolation: isolate; background: var(--scene-lo); overflow: hidden; }
.sample-scene { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transform: scale(1.04); }
.sample-scene-shade { position: absolute; inset: 0; background: linear-gradient(180deg, rgba(11,12,15,.48), transparent 26%, transparent 40%, rgba(11,12,15,.8)); pointer-events: none; }
.sample-title { position: absolute; top: 1.2rem; left: 1.4rem; text-shadow: 0 2px 4px rgba(0,0,0,.9); font-family: var(--jp); font-size: 1rem; }
.sample-title span span { color: var(--text); font-family: var(--display); }
.sample-title small { display: block; font: .75rem/1.6 system-ui, sans-serif; color: var(--text); }
.sample-start { position: absolute; top: 40%; left: 50%; transform: translate(-50%, -50%); display: flex; align-items: center; gap: .9rem; min-height: 64px; white-space: nowrap; border: 1px solid var(--line); background: var(--bg-raised); border-radius: var(--r); padding: .8rem 1.3rem; color: var(--text); text-align: left; }
.sample-start:hover { background: var(--bg); border-color: var(--accent); }
.sample-start svg { width: 25px; height: 25px; color: var(--accent); }
.sample-start span { font-size: 1rem; font-weight: 600; }
.sample-start small { display: block; font-size: .75rem; color: var(--text-soft); font-weight: 400; }
.sample-subtitles { position: absolute; bottom: 106px; left: 4%; right: 4%; text-align: center; text-shadow: 0 0 4px #000, 0 2px 4px rgba(0,0,0,.9); }
.sample-jp { font: 600 clamp(1.25rem, 3vw, 2rem)/1.7 var(--jp); margin-bottom: .25rem; }
.sample-en { font: 500 clamp(.95rem, 2vw, 1.2rem)/1.7 system-ui, sans-serif; color: var(--text); }
.sample-subtitles button { display: inline; padding: 2px 1px; font: inherit; color: inherit; text-shadow: inherit; border: none; border-radius: var(--r-s); background: transparent; }
.sample-subtitles button:hover, .sample-subtitles button.linked { background: rgba(255,255,255,.16); text-decoration: underline; text-underline-offset: .2em; }
.sample-subtitles ruby { ruby-position: over; }
.sample-subtitles rt { color: var(--reading); font-size: .48em; font-weight: 400; line-height: 1; }
.sample-transport { position: absolute; bottom: 0; left: 0; right: 0; padding: 0 1.2rem .7rem; background: linear-gradient(180deg, transparent, rgba(11,12,15,.8)); }
.sample-seek { display: block; width: 100%; height: 28px; margin: 0; appearance: none; -webkit-appearance: none; cursor: pointer; background: transparent; --position: 0%; }
.sample-seek::-webkit-slider-runnable-track { height: 3px; background: linear-gradient(to right, var(--accent) var(--position), var(--text-faint) var(--position)); border-radius: var(--r-s); }
.sample-seek::-moz-range-track { height: 3px; background: var(--text-faint); border-radius: var(--r-s); }
.sample-seek::-moz-range-progress { height: 3px; background: var(--accent); }
.sample-seek::-webkit-slider-thumb { appearance: none; width: 12px; height: 12px; margin-top: -4.5px; border-radius: 50%; background: var(--accent); }
.sample-seek::-moz-range-thumb { width: 12px; height: 12px; border: none; border-radius: 50%; background: var(--accent); }
.sample-controls { display: flex; align-items: center; gap: .25rem; }
.sample-icon { display: inline-flex; justify-content: center; align-items: center; width: 44px; height: 44px; flex: none; padding: 0; border: none; border-radius: var(--r-s); background: transparent; color: var(--text); }
.sample-icon:hover, .sample-replay:hover { background: var(--wash); color: var(--accent); }
.sample-clock { font: .75rem/1.5 var(--mono); color: var(--text); font-variant-numeric: tabular-nums; white-space: nowrap; margin-left: .35rem; }
.sample-replays { display: flex; gap: .4rem; margin-left: auto; }
.sample-replay { display: flex; align-items: center; gap: .5rem; min-height: 44px; padding: 0 .6rem; border: none; border-radius: var(--r-s); background: transparent; color: var(--text); font-size: .875rem; }
.sample-replay[aria-pressed="true"] { color: var(--accent); background: var(--wash); }
.sample-card.wordcard { position: absolute; top: 18%; right: 4%; width: 280px; max-width: 92%; padding: .7rem 1rem 1rem; z-index: 3; }
.sample-card .wc-head { align-items: center; gap: .5rem; }
.sample-card .wc-surface { margin: 0; font-size: 1.45rem; line-height: 1.4; letter-spacing: 0; white-space: normal; }
.sample-card .wc-head .sample-icon { margin-left: auto; }
.sample-reading-row { display: flex; align-items: center; margin-top: -.5rem; }
.sample-reading-row .sample-icon { height: 36px; margin-left: auto; }
.sample-card .wc-reading { font-family: var(--jp); font-size: .875rem; }
.sample-card .wc-gloss { font-size: 1rem; line-height: 1.45; color: var(--text); margin: .1rem 0 .35rem; }
.sample-grammar { color: var(--text-soft); font-size: .75rem; margin-bottom: .9rem; line-height: 1.5; }
.sample-card .wc-save { width: 100%; border: none; min-height: 44px; font-size: .875rem; }
.sample-card .wc-save:hover { background: var(--accent); }
.sample-card .wc-save:disabled { color: var(--ok); background: var(--wash); opacity: 1; }
.sample-player[data-enabled="false"] .sample-jp { display: none; }
.sample-footer { padding: .65rem 1.2rem; display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: .3rem 1rem; border-top: 1px solid var(--line); }
.sample-saved-toggle { display: flex; align-items: center; gap: .5rem; min-height: 44px; font-size: .875rem; background: transparent; border: none; padding: 0; color: var(--text); }
.sample-saved-toggle:hover, .sample-saved-toggle[aria-expanded="true"] { color: var(--accent); }
.sample-saved-toggle span { font: .75rem/1 var(--mono); color: var(--text-soft); }
.sample-saved { padding: 1.2rem; border-top: 1px solid var(--line); }
.sample-saved > p { color: var(--text-soft); font-size: .875rem; margin-bottom: .75rem; }
.sample-saved > small { display: block; color: var(--text-soft); font-size: .75rem; }
.sample-saved ul { padding: 0; list-style: none; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: .75rem; margin-bottom: .8rem; }
.sample-saved li button { width: 100%; min-height: 60px; display: flex; align-items: center; gap: .75rem; border: 1px solid var(--line); border-radius: var(--r); background: transparent; padding: .65rem; text-align: left; color: var(--text); }
.sample-saved li button:hover { border-color: var(--accent); }
.sample-saved li img { width: 52px; height: 40px; object-fit: cover; border-radius: var(--r-s); }
.sample-saved li strong { display: block; font: 600 1rem/1.5 var(--jp); }
.sample-saved li small { display: block; color: var(--text-soft); font-size: .75rem; }
.sample-caption { color: var(--text-soft); text-align: center; font-size: .75rem; margin: .9rem auto 0; }
@media (max-width: 900px) {
  .sample-stage { aspect-ratio: 4 / 3; min-height: 480px; }
  .sample-card.wordcard { top: 8px; right: 8px; }
  .sample-player:has(.sample-card:not([hidden])) .sample-title { visibility: hidden; }
}
@media (max-width: 620px) {
  .sample-demo { margin-top: 2.5rem; }
  .sample-topbar { padding-inline: .8rem; }
  .sample-label > span { display: none; }
  .sample-stage { aspect-ratio: 4 / 5; min-height: 410px; }
  .sample-scene { object-position: 40% center; }
  .sample-title { top: .8rem; left: .9rem; }
  .sample-start { top: 39%; }
  .sample-subtitles { bottom: 112px; left: .5rem; right: .5rem; }
  .sample-card.wordcard { top: 8px; right: 8px; width: min(280px, calc(100% - 16px)); padding: .4rem .85rem .75rem; }
  .sample-player:has(.sample-card:not([hidden])) .sample-title { visibility: hidden; }
  .sample-transport { padding-inline: .5rem; }
  .sample-controls { gap: 0; }
  .sample-clock { margin-left: .1rem; }
  .sample-replays { gap: 0; }
  .sample-replay { padding-inline: .4rem; gap: .35rem; }
  #demo-replay span { display: none; }
  .sample-replay svg { width: 18px; height: 18px; }
  .sample-footer { padding: .6rem .9rem; }
  .sample-saved ul { grid-template-columns: 1fr; }
}
@media (max-width: 380px) {
  .sample-stage { aspect-ratio: auto; height: 410px; }
}
@media (prefers-reduced-motion: reduce) {
  .sample-scene { transform: none !important; }
}