/* =========================================================
   DARK SACHI · unified soundtrack UI
   Shared across /, /shop/ and /game/. Two variants:
   .soundtrack--dock  → bottom-left pill+dock (homepage, shop)
   .soundtrack--game  → compact top-center (game, clears touchpad)
   Uses brand vars with literal fallbacks so it renders even on
   pages whose stylesheet omits a given custom property.
   ========================================================= */
.soundtrack { position: fixed; z-index: 55; }
.soundtrack[hidden] { display: none; }
.soundtrack--dock { left: 20px; bottom: 20px; }
.soundtrack--game { top: max(12px, env(safe-area-inset-top)); left: 50%; transform: translateX(-50%); z-index: 9; }

/* Enter-with-sound activation (autoplay blocked) */
.soundtrack__enter {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 12px 18px; border-radius: 999px;
  font-family: var(--f-mono, 'JetBrains Mono', ui-monospace, monospace);
  font-size: 12.5px; letter-spacing: .04em; text-transform: uppercase;
  color: var(--ink, #f6f3ff);
  background: linear-gradient(135deg, rgba(75,0,130,.72), rgba(45,0,79,.86));
  border: 1px solid var(--line, #2a2540);
  box-shadow: 0 10px 34px rgba(0,0,0,.55), 0 0 0 1px rgba(255,26,75,.12) inset;
  backdrop-filter: blur(8px);
  transition: transform .25s var(--ease, cubic-bezier(.22,.61,.36,1)), border-color .25s, box-shadow .25s;
}
.soundtrack__enter[hidden] { display: none; }
.soundtrack__enter:hover { transform: translateY(-2px); border-color: var(--magenta, #FF1A4B); box-shadow: 0 14px 40px rgba(0,0,0,.6), 0 0 24px rgba(255,26,75,.22); }
.soundtrack--game .soundtrack__enter:hover { transform: translateX(-50%) translateY(-2px); }
.soundtrack__enter-ico { color: var(--gold, #FFC83A); display: inline-flex; }

/* Active dock */
.soundtrack__dock {
  display: inline-flex; align-items: center; gap: 12px;
  padding: 9px 14px 9px 10px; border-radius: 999px;
  background: linear-gradient(135deg, rgba(20,20,33,.86), rgba(10,10,20,.92));
  border: 1px solid var(--line, #2a2540);
  box-shadow: 0 10px 34px rgba(0,0,0,.55);
  backdrop-filter: blur(8px);
}
.soundtrack__dock[hidden] { display: none; }
.soundtrack__btn {
  width: 34px; height: 34px; flex: none; border-radius: 50%;
  display: inline-grid; place-items: center; color: var(--ink, #f6f3ff);
  border: 1px solid var(--line-soft, var(--line, #1d1a30)); background: rgba(255,255,255,.02);
  transition: color .2s var(--ease, cubic-bezier(.22,.61,.36,1)), border-color .2s, background .2s, transform .2s;
}
.soundtrack__btn:hover { color: var(--gold, #FFC83A); border-color: var(--magenta, #FF1A4B); transform: translateY(-1px); }
.soundtrack__btn svg { display: block; }

/* icon toggling driven by state classes */
.soundtrack__btn--play .ico-pause { display: none; }
.soundtrack.is-playing .soundtrack__btn--play .ico-play { display: none; }
.soundtrack.is-playing .soundtrack__btn--play .ico-pause { display: block; }
.soundtrack__btn--mute .ico-muted { display: none; }
.soundtrack.is-muted .soundtrack__btn--mute .ico-vol { display: none; }
.soundtrack.is-muted .soundtrack__btn--mute .ico-muted { display: block; color: var(--magenta-2, #ff3a6a); }

.soundtrack__meta { display: inline-flex; align-items: center; gap: 9px; padding-right: 4px; }
.soundtrack__track {
  font-family: var(--f-mono, 'JetBrains Mono', ui-monospace, monospace);
  font-size: 11.5px; letter-spacing: .03em;
  color: var(--ink-2, #cfc8ea); white-space: nowrap; max-width: 150px; overflow: hidden; text-overflow: ellipsis;
}

/* equalizer bars */
.soundtrack__eq { display: inline-flex; align-items: flex-end; gap: 2px; height: 14px; }
.soundtrack__eq i { width: 2.5px; height: 4px; background: var(--gold, #FFC83A); border-radius: 2px; opacity: .55; }
.soundtrack.is-playing .soundtrack__eq i { animation: st-eq .9s ease-in-out infinite; opacity: 1; }
.soundtrack.is-playing .soundtrack__eq i:nth-child(2) { animation-delay: .18s; }
.soundtrack.is-playing .soundtrack__eq i:nth-child(3) { animation-delay: .36s; }
@keyframes st-eq { 0%,100% { height: 4px; } 50% { height: 14px; } }

/* keyboard focus */
.soundtrack__enter:focus-visible,
.soundtrack__btn:focus-visible { outline: 2px solid var(--gold, #FFC83A); outline-offset: 2px; }

/* --- game variant: compact, hide the track label to save width --- */
.soundtrack--game .soundtrack__dock { padding: 6px 10px; gap: 8px; }
.soundtrack--game .soundtrack__btn { width: 30px; height: 30px; }
.soundtrack--game .soundtrack__track { display: none; }
.soundtrack--game .soundtrack__enter { padding: 9px 14px; font-size: 11.5px; }

@media (max-width: 760px) {
  .soundtrack--dock { left: 14px; bottom: 14px; }
  .soundtrack--dock .soundtrack__track { max-width: 108px; }
}

@media (prefers-reduced-motion: reduce) {
  .soundtrack__enter, .soundtrack__btn { transition: none; }
  .soundtrack.is-playing .soundtrack__eq i { animation: none; }
}