/* LyricViz — iOS-style liquid glass over a live canvas stage.
   Palette shared with the rest of the fleet:
   ink #0b0e14, panel #12161f, edge #232a38, cyan #22d3ee,
   text #e8ecf3, secondary #94a3b8, indigo #818cf8. */

:root {
  --ink: #0b0e14;
  --panel: #12161f;
  --edge: #232a38;
  --cyan: #22d3ee;
  --indigo: #818cf8;
  --text: #e8ecf3;
  --secondary: #94a3b8;
  /* Frost controls how solid the glass feels. 74 is the fleet default. */
  --frost: 74;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

/* The hidden attribute must always win — several components set
   their own display value, which would otherwise override it. */
[hidden] { display: none !important; }

/* Visible keyboard focus everywhere — one clear cyan ring.
   Several controls remove the default outline, so this rule is
   the only focus signal keyboard users get. */
:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
  border-radius: 6px;
}
input[type="range"]:focus-visible {
  outline-offset: 4px;
}

html, body { height: 100%; }

body {
  background: var(--ink);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display",
    "Segoe UI", Inter, Roboto, sans-serif;
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
}

/* ---- Stage ---------------------------------------------------- */

#stage {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  /* Keep the canvas on its own GPU layer. */
  transform: translateZ(0);
  will-change: transform;
}

/* Small live frame-rate readout in the top bar. */
.fps-pill {
  font-size: 12px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: var(--cyan);
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.12);
  padding: 6px 10px;
  border-radius: 999px;
  white-space: nowrap;
}

/* Soft shade so lyrics stay readable over bright visuals. */
.stage-shade {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(ellipse at center,
    transparent 40%, rgba(11, 14, 20, 0.55) 100%);
}

.app {
  position: relative;
  z-index: 2;
  height: 100dvh;
  display: flex;
  flex-direction: column;
  padding: 14px clamp(12px, 3vw, 28px) 16px;
  gap: 10px;
}

/* ---- Glass ---------------------------------------------------- */
/* One glass recipe everywhere: translucent panel, strong blur,
   a light edge, and a soft shadow. The --frost value (45–92)
   mixes more or less solid panel colour into the glass. */

.glass {
  background: color-mix(in srgb, var(--panel) calc(var(--frost) * 1%), transparent);
  -webkit-backdrop-filter: blur(22px) saturate(160%);
  backdrop-filter: blur(22px) saturate(160%);
  border: 1px solid rgba(255, 255, 255, 0.13);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.35),
    inset 0 1px 0 rgba(255, 255, 255, 0.10);
}

.bar {
  border-radius: 999px;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 8px 10px 8px 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text);
  flex-shrink: 0;
}

/* Interface animations are OFF by default. The Animations toggle
   in the top bar adds body.anim-on, which is the only state where
   decorative motion (like this mark breathing) runs. */
.brand-mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.12);
}
body.anim-on .brand-mark { animation: mark-breathe 4.5s ease-in-out infinite; }

@keyframes mark-breathe {
  0%, 100% { box-shadow: 0 0 0 0 rgba(34, 211, 238, 0.0); }
  50% { box-shadow: 0 0 18px 2px rgba(34, 211, 238, 0.28); }
}

.brand-name { font-size: 20px; font-weight: 700; letter-spacing: -0.02em; }
/* One colour for the whole wordmark — no split-colour headline. */
.brand-name em { font-style: normal; }

.bar .segmented { margin-left: auto; }

.glass-btn {
  width: 40px; height: 40px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.07);
  color: var(--text);
  font-size: 17px;
  cursor: pointer;
  flex-shrink: 0;
}
.glass-btn:active { transform: scale(0.93); }
.anim-btn {
  width: auto;
  padding: 0 14px;
  border-radius: 999px;
  font-size: 12.5px;
  font-weight: 600;
  white-space: nowrap;
}

/* ---- Segmented control (iOS style) ---------------------------- */

.segmented {
  display: flex;
  gap: 2px;
  padding: 3px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.seg {
  border: 0;
  background: transparent;
  color: var(--secondary);
  font: inherit;
  font-size: 14px;
  font-weight: 600;
  padding: 7px 14px;
  border-radius: 999px;
  cursor: pointer;
  transition: background 0.18s ease, color 0.18s ease, transform 0.12s ease;
  white-space: nowrap;
}
.seg:active { transform: scale(0.95); }
.seg.active {
  background: rgba(255, 255, 255, 0.92);
  color: #11141c;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}
.segmented.small .seg { font-size: 13px; padding: 6px 11px; }

/* ---- Lyrics stage --------------------------------------------- */

.stage-wrap {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 18px;
  padding: 0 clamp(8px, 6vw, 90px);
  min-height: 0;
}

.track-label {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--secondary);
}

.lyrics { display: flex; flex-direction: column; gap: 14px; }

.lyric-line {
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.25;
  transition: opacity 0.3s ease;
}
.lyric-line.prev, .lyric-line.next {
  font-size: clamp(17px, 2.6vw, 27px);
  color: rgba(232, 236, 243, 0.38);
  font-weight: 600;
}
.lyric-line.current {
  font-size: clamp(28px, 5.2vw, 54px);
  color: rgba(232, 236, 243, 0.42);
}

/* Words light up one by one as they are sung. Future words in the
   current line stay dim; sung words turn full white with a glow. */
.lyric-line.current .word { transition: color 0.15s ease, text-shadow 0.15s ease; }
.lyric-line.current .word.sung {
  color: #fff;
  text-shadow: 0 0 22px rgba(34, 211, 238, 0.65), 0 0 46px rgba(129, 140, 248, 0.4);
}
.lyric-line.current .word.now { color: var(--cyan); }

.hint { font-size: 13px; color: var(--secondary); }

/* ---- Control sheet -------------------------------------------- */

.sheet {
  border-radius: 28px;
  padding: 16px 18px 12px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-height: 46dvh;
  overflow-y: auto;
}

.row {
  display: flex;
  align-items: center;
  gap: 10px;
}
.row.wrap { flex-wrap: wrap; }

.row-label {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--secondary);
  /* 88px fits the longest label ("Download", measured 83.5px) —
     at the old 52px its last letter slid under the first button
     and vanished. */
  width: 88px;
  flex-shrink: 0;
}

.source-actions { display: flex; gap: 8px; }

.pill-btn {
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.09);
  color: var(--text);
  font: inherit;
  font-size: 13.5px;
  font-weight: 600;
  padding: 8px 14px;
  border-radius: 999px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
}
a.pill-btn { text-decoration: none; }
.dl-note { font-size: 12.5px; color: var(--secondary); }
.pill-btn:active { transform: scale(0.95); }
.pill-btn.accent { background: var(--cyan); border-color: transparent; color: #06222a; }
.pill-btn.ghost { background: transparent; }

.field {
  flex: 1;
  min-width: 150px;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 14px;
  color: var(--text);
  font: inherit;
  font-size: 14px;
  padding: 9px 13px;
  outline: none;
}
.field:focus { border-color: var(--cyan); }
.field::placeholder { color: rgba(148, 163, 184, 0.75); }
.field.area { width: 100%; resize: vertical; line-height: 1.5; }

.offset-group { display: flex; align-items: center; gap: 7px; margin-left: auto; }
.offset-value { font-size: 13px; color: var(--secondary); min-width: 38px; text-align: center; }
.mini-btn {
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.07);
  color: var(--text);
  font: inherit; font-size: 12.5px; font-weight: 600;
  padding: 6px 10px; border-radius: 999px; cursor: pointer;
}
.mini-btn:active { transform: scale(0.93); }

.results { display: flex; flex-direction: column; gap: 6px; width: 100%; }
.result-item {
  text-align: left;
  border: 1px solid rgba(255, 255, 255, 0.10);
  background: rgba(255, 255, 255, 0.05);
  color: var(--text);
  border-radius: 14px;
  padding: 9px 13px;
  font: inherit; font-size: 14px;
  cursor: pointer;
  display: flex; justify-content: space-between; gap: 12px;
}
.result-item:hover { border-color: var(--cyan); }
.result-item .meta { color: var(--secondary); font-size: 12.5px; white-space: nowrap; }
.result-item .no-sync { color: #f0abfc; font-size: 12.5px; }

/* ---- Player bar ----------------------------------------------- */

.player {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-top: 4px;
}

.play-btn {
  width: 52px; height: 52px;
  border-radius: 50%;
  border: 0;
  background: #fff;
  color: #11141c;
  font-size: 19px;
  cursor: pointer;
  display: grid; place-items: center;
  box-shadow: 0 6px 22px rgba(0, 0, 0, 0.4);
  flex-shrink: 0;
  transition: transform 0.12s ease;
}
.play-btn:active { transform: scale(0.93); }

.time { font-size: 12.5px; color: var(--secondary); min-width: 34px; text-align: center; }

input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  height: 6px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.18);
  outline: none;
  cursor: pointer;
}
#seekBar { flex: 1; }
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 15px; height: 15px; border-radius: 50%;
  background: #fff; border: 0;
  box-shadow: 0 1px 6px rgba(0, 0, 0, 0.5);
}
input[type="range"]::-moz-range-thumb {
  width: 15px; height: 15px; border-radius: 50%;
  background: #fff; border: 0;
}

.frost {
  display: flex; align-items: center; gap: 8px;
  font-size: 12.5px; color: var(--secondary); font-weight: 600;
}
.frost input { width: 84px; }

.fineprint { font-size: 12px; color: rgba(148, 163, 184, 0.8); text-align: center; }

/* Themed separator — a 2px glowing gradient line in the app's own
   theme colours (cyan into indigo). It flows only when the master
   Animations toggle is on; otherwise it sits as a static gradient. */
.theme-sep {
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--cyan), var(--indigo), var(--cyan));
  background-size: 200% 100%;
  opacity: 0.65;
  flex-shrink: 0;
}
body.anim-on .theme-sep { animation: sep-flow 6s linear infinite; }
@keyframes sep-flow { to { background-position: 200% 0; } }
.player { padding-top: 4px; }

/* Back-to-top — fixed bottom-left, 46px round, same glass recipe
   as the other round controls. JS shows it once the sheet scrolls. */
.jump-top {
  position: fixed;
  left: 16px;
  bottom: 16px;
  z-index: 50;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: color-mix(in srgb, var(--panel) 78%, transparent);
  -webkit-backdrop-filter: blur(18px) saturate(160%);
  backdrop-filter: blur(18px) saturate(160%);
  color: var(--text);
  font-size: 18px;
  cursor: pointer;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
}
.jump-top:active { transform: scale(0.93); }

@media (max-width: 640px) {
  .brand-name { display: none; }
  /* The full bar cannot fit one row on a phone: drop the fps
     pill and let the mode picker take its own full-width row
     instead of clipping off-screen. */
  .fps-pill { display: none; }
  .bar { gap: 8px; flex-wrap: wrap; border-radius: 28px; }
  .bar .segmented { order: 3; width: 100%; margin-left: 0; }
  .bar .segmented .seg { flex: 1; }
  .seg { padding: 7px 10px; font-size: 13px; }
  .row-label { display: none; }
  .sheet { max-height: 52dvh; }
}

@media (prefers-reduced-motion: reduce) {
  .brand-mark, .theme-sep { animation: none !important; }
  .seg, .lyric-line, .lyric-line.current .word, .play-btn,
  .glass-btn, .pill-btn, .mini-btn, .jump-top {
    transition: none !important;
  }
}