/* soundtrack: the tape deck. Builds on ../css/site.css (tokens, bar, buttons, head, empty). */
.viz { position: fixed; inset: 0; width: 100%; height: 100%; z-index: 0; pointer-events: none; opacity: .9; }
.bar, main, .dock { position: relative; z-index: 2; }
.bar { position: sticky; }
.deckwrap { padding-bottom: 150px; }
.deck { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); gap: clamp(20px, 4vw, 56px); align-items: center; padding: clamp(28px, 6vw, 72px) 0 8px; }
.cassette { width: 100%; height: auto; display: block; filter: drop-shadow(0 30px 30px rgba(0, 0, 0, .65)); transform: rotate(-2.2deg); transition: transform .5s ease; }
.is-playing .cassette { transform: rotate(-1deg) translateY(-4px); }
.reel { transform-box: fill-box; transform-origin: center; }
.is-playing .reel { animation: spin 2.4s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) { .is-playing .reel { animation: none; } }
.deck__h { font: 800 clamp(34px, 6vw, 64px)/.95 var(--display); text-transform: uppercase; margin: 0 0 10px; overflow-wrap: anywhere; }
.deck__sub { color: var(--dim); margin: 0 0 14px; font: 400 14px/1.5 var(--mono); }
.deck__chips { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 20px; min-height: 28px; }
.chip { font: 500 12px/1 var(--mono); letter-spacing: .06em; text-transform: uppercase; padding: 7px 10px 6px; border-radius: 999px; border: 1px solid var(--line); color: var(--dim); }
.chip--b { color: var(--gold); border-color: rgba(220, 168, 52, .4); } .chip--m { color: #8fd6cf; border-color: rgba(47, 158, 148, .5); }
.deck__btns { display: flex; flex-wrap: wrap; gap: 12px; }
.btn small { margin-left: 4px; }
.tl { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; counter-reset: n; }
.tl__sec { margin: 22px 0 2px; }
.tl__sech { font: 800 clamp(22px, 3.4vw, 30px)/1 var(--display); text-transform: uppercase; letter-spacing: .04em; margin: 0; color: var(--dim); }
.tl__sech::after { content: ""; display: block; width: 48px; height: 4px; margin-top: 10px; border-radius: 2px; background: linear-gradient(90deg, var(--gold) 0 50%, var(--purple) 0); }
.tl__secm { font: 400 12px var(--mono); color: var(--faint); margin: 8px 0 0; }
.tl__sec { scroll-margin-top: 24px; position: relative; }
.tl__top { position: absolute; right: 0; top: 4px; font: 500 12px var(--mono); color: var(--faint); text-decoration: underline; }
.tl__top:hover { color: var(--lamp); }
.toc { margin: 0 0 8px; padding: 14px 16px 16px; border: 1px solid var(--line); border-radius: 14px; background: rgba(27, 19, 13, .6); scroll-margin-top: 24px; }
.toc__h { font: 700 14px var(--display); letter-spacing: .14em; text-transform: uppercase; color: var(--dim); margin: 0 0 10px; }
.toc__l { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 4px 18px; }
.toc__l a { display: flex; justify-content: space-between; gap: 10px; padding: 7px 4px; color: var(--text); text-decoration: none; border-bottom: 1px dotted var(--line); font: 600 15px var(--display); letter-spacing: .04em; text-transform: uppercase; }
.toc__l a:hover { color: var(--lamp); }
.toc__l b { font: 500 13px var(--mono); color: var(--dim); }
.tr { background: linear-gradient(180deg, rgba(40, 28, 18, .92), rgba(27, 19, 13, .92)); border: 1px solid var(--line); border-radius: 14px; overflow: hidden; }
.tr__links { display: flex; flex-wrap: wrap; align-items: center; gap: 4px 14px; margin: 0 0 10px 76px; }
.tr__share { font: 500 12px 'IBM Plex Mono', monospace; color: #b9a98f; text-decoration: underline; padding: 6px 4px; cursor: pointer; }
.tr__share:hover, .tr__share.is-copied { color: var(--lamp); }
.tr__copy { flex: 1 1 200px; min-width: 0; font: 400 12px var(--mono); color: var(--text); background: rgba(0, 0, 0, .35); border: 1px solid var(--lamp); border-radius: 6px; padding: 5px 8px; }
.tr { scroll-margin-top: 24px; scroll-margin-bottom: 120px; }
.tr.is-linked { border-color: var(--lamp); box-shadow: 0 0 0 3px rgba(255, 180, 95, .35), 0 0 28px rgba(255, 180, 95, .18); }
@keyframes armed { 50% { box-shadow: 0 0 0 8px rgba(255, 180, 95, .35); } }
body.is-armed #b-play, body.is-armed #hero-play { animation: armed 1.4s ease-in-out infinite; }
.tr.is-current { border-color: var(--lamp); box-shadow: 0 0 0 3px rgba(255, 180, 95, .18); }
.tr__row { display: grid; grid-template-columns: 56px minmax(0, 1fr) auto; gap: 14px; align-items: center; padding: 10px 14px 10px 10px; width: 100%; border: 0; background: none; color: inherit; text-align: left; cursor: pointer; font: inherit; }
.tr__row:hover { background: rgba(255, 255, 255, .04); }
.tr canvas.cov { width: 56px; height: 56px; border-radius: 6px; display: block; box-shadow: 0 4px 10px rgba(0, 0, 0, .5); }
.tr__t { font: 700 21px/1.1 var(--display); letter-spacing: .03em; text-transform: uppercase; margin: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.tr__m { font: 400 12px/1.5 var(--mono); color: var(--dim); margin: 2px 0 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.tr__d { font: 500 14px var(--mono); color: var(--dim); }
.tr__more { padding: 0 16px 16px; display: none; gap: 12px; border-top: 1px solid var(--line); }
.tr.is-open .tr__more { display: grid; }
.tr__more p { margin: 12px 0 0; font-size: 14.5px; color: #d8c9af; }
.tr__more dl { display: grid; grid-template-columns: auto 1fr; gap: 4px 14px; margin: 12px 0 0; font: 400 12.5px/1.5 var(--mono); }
.tr__more dt { color: var(--faint); } .tr__more dd { margin: 0; color: var(--dim); overflow-wrap: anywhere; }
.tr__act { display: flex; flex-wrap: wrap; gap: 8px; }
.tr__act a, .tr__act button { font: 600 13px/1 var(--display); letter-spacing: .1em; text-transform: uppercase; color: var(--text); text-decoration: none; background: rgba(255, 255, 255, .08); border: 1px solid var(--line); border-radius: 8px; padding: 10px 12px; cursor: pointer; }
.tr__act a:hover, .tr__act button:hover { border-color: var(--lamp); color: var(--lamp); }
.fine { color: var(--faint); font-size: 14px; margin-top: 28px; max-width: 80ch; }
kbd { font: 500 12px var(--mono); background: rgba(255, 255, 255, .1); border-radius: 4px; padding: 1px 6px; }
.kb { display: block; margin-top: 8px; }
.toast { position: fixed; left: 50%; bottom: 120px; transform: translate(-50%, 20px); opacity: 0; background: #f1e8d3; color: #2a2118; padding: 10px 16px; border-radius: 8px; font: 400 16px var(--hand); z-index: 30; transition: .25s; pointer-events: none; max-width: 90vw; }
.toast.on { opacity: 1; transform: translate(-50%, 0); }

.dock { position: fixed; left: 0; right: 0; bottom: 0; z-index: 25; display: grid; grid-template-columns: minmax(150px, 1fr) minmax(0, 2fr) minmax(120px, 1fr); gap: 18px; align-items: center;
  padding: 12px max(16px, calc((100% - 1120px) / 2)) calc(12px + env(safe-area-inset-bottom)); background: rgba(16, 11, 8, .94); border-top: 1px solid rgba(255, 190, 110, .25);
  -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px); }
.dock[hidden] { display: none; }
.dock__meta { display: flex; gap: 12px; align-items: center; min-width: 0; }
.dock__meta canvas { width: 48px; height: 48px; border-radius: 6px; flex: none; }
.dock__meta b { display: block; font: 700 17px/1.1 var(--display); text-transform: uppercase; letter-spacing: .03em; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.dock__meta span { font: 400 12px var(--mono); color: var(--dim); display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.dock__meta > div { min-width: 0; }
.dock__ctl { display: flex; justify-content: center; align-items: center; gap: 8px; }
.dock button { background: none; border: 0; color: var(--dim); font-size: 20px; width: 42px; height: 42px; border-radius: 50%; cursor: pointer; line-height: 1; }
.dock button:hover { color: var(--text); background: rgba(255, 255, 255, .08); }
.dock button[aria-pressed="true"] { color: var(--lamp); }
.dock button.big { background: var(--red); color: #fff; width: 50px; height: 50px; box-shadow: 0 3px 0 #6e1c0f; }
.dock button.big:hover { background: #e2553b; }
.dock__scrub { display: grid; grid-template-columns: auto 1fr auto; gap: 10px; align-items: center; font: 400 12px var(--mono); color: var(--dim); }
.wave { position: relative; height: 34px; cursor: pointer; touch-action: none; border-radius: 6px; }
.wave canvas { width: 100%; height: 100%; display: block; }
.dock__side { display: flex; align-items: center; justify-content: flex-end; gap: 6px; }
#vol { width: 100px; accent-color: var(--lamp); }
@media (max-width: 820px) {
  .deck { grid-template-columns: 1fr; }
  .dock { grid-template-columns: 1fr auto; gap: 8px 12px; }
  .dock__mid { grid-column: 1 / -1; grid-row: 2; }
  .dock__side { display: none; }
  .tr__d { display: none; }
  .tr__row { grid-template-columns: 56px minmax(0, 1fr); }
  .deckwrap { padding-bottom: 210px; }
}
.tracks { margin-top: clamp(40px, 7vw, 72px); }