/* Pocket Orchestra console: a concert program with gilt hairlines.
   Palette comes from theme.css (T7) shared tokens; the fallbacks are the dark theme. */
@property --p { syntax: '<number>'; inherits: true; initial-value: 0; }

body {
  /* local aliases of the shared tokens (palette itself lives in theme.css) */
  --c-bg: var(--bg, #0d0709);
  --c-surface: var(--surface, #170c10);
  --c-surface-2: var(--surface-2, #22131b);
  --c-ink: var(--ink, #f3e9d6);
  --c-muted: var(--ink-muted, #bba898);
  --c-line: var(--line, rgb(214 178 108 / 0.2));
  --c-accent: var(--accent, #d6b26c);
  --c-accent-ink: var(--accent-ink, #1a0e07);
  --c-velvet: var(--velvet, #3d0f1c);
  --c-glow: var(--glow, rgb(242 217 156 / 0.7));
  --c-shadow: var(--shadow, rgb(0 0 0 / 0.85));
  --line-strong: color-mix(in srgb, var(--c-accent) 45%, transparent);
  --accent-hi: color-mix(in srgb, var(--c-accent) 55%, white);
  --accent-lo: color-mix(in srgb, var(--c-accent) 62%, black);
  --well: color-mix(in srgb, var(--c-shadow) 28%, var(--c-surface));
  --display: 'Bodoni Moda', 'Didot', 'Bodoni 72', Georgia, serif;
  --sans: 'Jost', 'Futura', 'Avenir Next', system-ui, sans-serif;
  --ease-out: cubic-bezier(.16, 1, .3, 1);
  --ease-quint: cubic-bezier(.22, 1, .36, 1);

  margin: 0;
  min-height: 100vh;
  color: var(--c-ink);
  font: 400 15px/1.5 var(--sans);
  font-variant-numeric: tabular-nums;
  background:
    radial-gradient(120% 55% at 50% -12%, color-mix(in srgb, var(--c-velvet) 75%, transparent) 0%, transparent 62%),
    radial-gradient(70% 45% at 100% 105%, color-mix(in srgb, var(--c-velvet) 45%, transparent) 0%, transparent 70%),
    var(--c-bg);
  background-attachment: fixed;
  overflow-x: hidden;
  scrollbar-color: var(--accent-lo) var(--c-bg);
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
/* velvet curtain folds, fading out down the page */
body::before {
  content: '';
  position: fixed; inset: 0 0 auto; height: 70vh;
  pointer-events: none;
  opacity: 0.22;
  background: repeating-linear-gradient(90deg, var(--c-shadow) 0 1px, transparent 14px, color-mix(in srgb, var(--c-shadow) 70%, transparent) 34px, var(--c-shadow) 44px);
  -webkit-mask-image: linear-gradient(#000, transparent);
          mask-image: linear-gradient(#000, transparent);
}
:root[data-theme=light] body::before { opacity: 0.06; }
::selection { background: var(--c-accent); color: var(--c-accent-ink); }
:focus-visible { outline: 2px solid var(--c-accent); outline-offset: 3px; }
button { font: inherit; color: inherit; cursor: pointer; -webkit-tap-highlight-color: transparent; }
button:disabled { cursor: not-allowed; opacity: 0.35; }
svg { display: block; width: 1em; height: 1em; flex: none; }

main { position: relative; z-index: 1; max-width: 1240px; margin: 0 auto; padding: 28px 16px 72px; }

/* ---------- masthead + transport ---------- */
.top {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
  gap: 18px 40px;
  padding-bottom: 20px;
  margin-bottom: 18px;
  border-bottom: 1px solid var(--c-line);
}
h1 {
  margin: 0;
  font: 500 clamp(2.5rem, 6.4vw, 4.6rem)/0.95 var(--display);
  font-optical-sizing: auto;
  letter-spacing: -0.025em;
  text-wrap: balance;
}
h1 em { font-style: italic; font-weight: 400; color: var(--c-accent); }
.work {
  display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 14px;
  margin: 12px 0 0;
  font: italic 400 1.2rem/1.2 var(--display);
}
.work .by { font: 500 0.72rem/1 var(--sans); font-style: normal; letter-spacing: 0.22em; text-transform: uppercase; color: var(--c-muted); }
.sub { margin: 10px 0 0; max-width: 46ch; color: var(--c-muted); font-size: 0.92rem; }

.transport { display: grid; gap: 14px; justify-items: end; }
.transport-main { display: flex; gap: 10px; }
.btn-tutti, .btn-stop {
  display: inline-flex; align-items: center; gap: 10px;
  min-height: 48px; padding: 0 22px;
  border-radius: 3px;
  font: 600 0.82rem/1 var(--sans); letter-spacing: 0.2em; text-transform: uppercase;
  transition: background-position 0.6s var(--ease-out), border-color 0.3s, color 0.3s, box-shadow 0.4s;
}
.btn-tutti {
  color: var(--c-accent-ink);
  border: 1px solid var(--accent-hi);
  background: linear-gradient(105deg, var(--accent-lo) 0%, var(--c-accent) 30%, var(--accent-hi) 46%, var(--c-accent) 58%, var(--accent-lo) 100%);
  background-size: 260% 100%; background-position: 100% 0;
  box-shadow: 0 6px 18px -8px var(--c-shadow), inset 0 1px 0 rgb(255 255 255 / 0.4);
}
.btn-tutti:hover { background-position: 0 0; box-shadow: 0 10px 24px -10px var(--c-glow), inset 0 1px 0 rgb(255 255 255 / 0.5); }
.btn-stop { color: var(--c-ink); background: var(--well); border: 1px solid var(--line-strong); }
.btn-stop:hover { border-color: var(--c-accent); color: var(--c-accent); }
body.playing .btn-stop { border-color: var(--c-accent); }
.btn-tutti:active, .btn-stop:active { transform: translateY(1px); }

.tempo { width: min(320px, 100%); }
.tempo-read { display: flex; align-items: baseline; gap: 8px; }
.tempo-read label { font: 500 0.7rem/1 var(--sans); letter-spacing: 0.22em; text-transform: uppercase; color: var(--c-muted); margin-right: auto; }
.tempo-read output { font: 500 1.9rem/1 var(--display); min-width: 2.2ch; text-align: right; }
.tempo-read .unit { font-size: 0.72rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--c-muted); }
.tempo-read .marking { font: italic 400 1.05rem/1 var(--display); color: var(--c-accent); min-width: 5.6em; }

input[type=range] {
  --fill: 0.38;
  -webkit-appearance: none; appearance: none;
  display: block; width: 100%; height: 28px; margin: 4px 0 0;
  background: transparent; cursor: pointer;
}
input[type=range]::-webkit-slider-runnable-track {
  height: 3px; border-radius: 2px;
  background: linear-gradient(90deg, var(--c-accent) calc(var(--fill) * 100%), color-mix(in srgb, var(--c-accent) 22%, transparent) 0);
}
input[type=range]::-moz-range-track { height: 3px; border-radius: 2px; background: color-mix(in srgb, var(--c-accent) 22%, transparent); }
input[type=range]::-moz-range-progress { height: 3px; border-radius: 2px; background: var(--c-accent); }
input[type=range]::-webkit-slider-thumb {
  -webkit-appearance: none; appearance: none;
  width: 18px; height: 18px; margin-top: -7.5px;
  border-radius: 50%; border: 1px solid var(--accent-hi);
  background: radial-gradient(circle at 35% 30%, var(--accent-hi), var(--c-accent) 55%, var(--accent-lo));
  box-shadow: 0 2px 6px var(--c-shadow);
  transition: transform 0.25s var(--ease-out);
}
input[type=range]::-moz-range-thumb {
  width: 18px; height: 18px; border-radius: 50%; border: 1px solid var(--accent-hi);
  background: radial-gradient(circle at 35% 30%, var(--accent-hi), var(--c-accent) 55%, var(--accent-lo));
}
input[type=range]:active::-webkit-slider-thumb { transform: scale(1.25); }
input[type=range]:focus-visible { outline-offset: 2px; }

/* ---------- proscenium: loop timeline above the stage ---------- */
.proscenium {
  position: relative;
  padding: 10px;
  margin-bottom: 44px;
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  background: linear-gradient(var(--c-surface), var(--c-bg));
  box-shadow: 0 0 0 4px var(--c-bg), 0 0 0 5px var(--c-line), 0 30px 60px -30px var(--c-shadow);
}
.timeline { position: relative; margin: 2px 2px 10px; }
.chords, .beats { display: grid; grid-template-columns: repeat(8, 1fr); }
.beats { grid-template-columns: repeat(16, 1fr); align-items: end; height: 30px; }
.chords span {
  padding: 0 0 4px 6px;
  font: italic 500 0.95rem/1 var(--display);
  color: var(--c-muted);
  border-left: 1px solid var(--c-line);
}
.chords span:nth-child(odd) { border-left-color: var(--line-strong); }
.cell { position: relative; height: 100%; display: flex; align-items: flex-end; padding: 0 2px; }
.cell i {
  display: block; width: 100%; height: 10px; border-radius: 1px;
  background: color-mix(in srgb, var(--c-accent) 18%, transparent);
  transform-origin: bottom;
  transition: background-color 0.5s;
}
.cell.down i { height: 18px; background: color-mix(in srgb, var(--c-accent) 32%, transparent); }
.cell.one i { height: 24px; }
.cell b {
  position: absolute; left: 4px; top: 0;
  font: 600 0.6rem/1 var(--sans); letter-spacing: 0.1em; color: var(--c-muted);
}
.timeline.running .cell.past i { background: color-mix(in srgb, var(--c-accent) 48%, transparent); }
.timeline.running .cell.now i { background: var(--c-accent); box-shadow: 0 -4px 14px -2px var(--c-glow); }
.playhead {
  --ph: 0;
  position: absolute; inset: -2px 0 -4px;
  pointer-events: none;
  opacity: 0; transition: opacity 0.6s;
  transform: translateX(calc(var(--ph) * 100%));
}
.timeline.running .playhead { opacity: 1; }
.playhead i {
  position: absolute; left: 0; top: 0; bottom: 0; width: 2px; margin-left: -1px;
  background: linear-gradient(transparent, var(--c-accent) 40%, var(--accent-hi));
  box-shadow: 0 2px 10px var(--c-glow);
}
body:not(.playing) .timeline.running { opacity: 0.55; transition: opacity 0.6s; }

/* ---------- the program ---------- */
.program-head {
  display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 6px 20px;
  margin-bottom: 8px;
}
.program-head h2 { margin: 0; font: 500 clamp(1.9rem, 4vw, 2.6rem)/1 var(--display); letter-spacing: -0.015em; }
.tally { margin: 0; font: italic 400 1.05rem/1.2 var(--display); color: var(--c-accent); }
.program-head .hint { flex-basis: 100%; margin: 4px 0 0; color: var(--c-muted); font-size: 0.92rem; }
@media (hover: none) { .hint .mouse { display: none; } }

.family { margin-top: 30px; }
.family h3 {
  display: flex; align-items: center; gap: 16px;
  margin: 0 0 14px;
  font: 500 0.74rem/1 var(--sans); letter-spacing: 0.28em; text-transform: uppercase; color: var(--c-muted);
}
.family h3::after { content: ''; flex: 1; height: 1px; background: linear-gradient(90deg, var(--line-strong), transparent); }
.strips { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 300px), 1fr)); gap: 12px; }

/* ---------- channel strip ---------- */
.strip {
  --ic: hsl(var(--hue, 30) var(--hue-s, 80%) var(--hue-l, 60%));
  position: relative;
  display: grid;
  grid-template-columns: 8px minmax(0, 1fr) auto;
  grid-template-rows: auto 1fr;
  grid-template-areas: 'meter name sect' 'meter seats seats';
  gap: 14px;
  padding: 16px 16px 14px;
  border: 1px solid var(--c-line);
  border-radius: 4px;
  background: linear-gradient(180deg, var(--c-surface-2), var(--c-surface) 70%);
  box-shadow: inset 0 1px 0 rgb(255 255 255 / 0.04), 0 14px 28px -20px var(--c-shadow);
  transition: border-color 0.6s, box-shadow 0.6s;
  scroll-margin: 96px 0 24px;
}
.strip.live {
  border-color: color-mix(in srgb, var(--ic) 42%, transparent);
  box-shadow: inset 0 1px 0 rgb(255 255 255 / 0.05), 0 18px 34px -22px color-mix(in srgb, var(--ic) 70%, transparent);
}
/* keyboard selection (orch:select from keys.js) */
.strip.selected {
  border-color: var(--c-accent);
  box-shadow: 0 0 0 1px var(--c-accent), 0 18px 40px -22px var(--c-glow);
}
.strip.selected .strip-name h4 { text-decoration: underline 1px var(--c-accent); text-underline-offset: 6px; }
.meter {
  --lvl: 0;
  grid-area: meter;
  position: relative; width: 8px; border-radius: 2px; overflow: hidden;
  background: var(--well);
}
.meter i {
  position: absolute; inset: 0;
  background: linear-gradient(0deg, color-mix(in srgb, var(--ic) 70%, black), var(--ic) 65%, var(--accent-hi));
  -webkit-mask-image: repeating-linear-gradient(0deg, #000 0 4px, transparent 4px 6px);
          mask-image: repeating-linear-gradient(0deg, #000 0 4px, transparent 4px 6px);
  clip-path: inset(calc((1 - var(--lvl)) * 100%) 0 0 0);
}
.strip-name { grid-area: name; min-width: 0; }
.strip-name h4 { margin: 0; font: 500 1.55rem/1.05 var(--display); letter-spacing: -0.01em; color: var(--c-ink); }
.strip-name p { margin: 4px 0 0; font: 500 0.68rem/1 var(--sans); letter-spacing: 0.2em; text-transform: uppercase; color: color-mix(in srgb, var(--ic) 60%, var(--c-ink)); }

/* section toggle: Play all while everyone rests, Stop once anyone plays; hidden for a lone player */
.sect {
  grid-area: sect; align-self: start;
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  min-width: 6.4rem; min-height: 32px; padding: 0 14px 0 11px;
  font: 500 0.66rem/1 var(--sans); letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--c-ink);
  background: var(--well); border: 1px solid var(--line-strong); border-radius: 999px;
  transition: border-color 0.25s, color 0.25s;
}
.sect[hidden] { display: none; }
.sect svg { width: 12px; height: 12px; color: var(--ic); }
.sect:hover { border-color: var(--c-accent); color: var(--c-accent); }
.sect.on { border-color: color-mix(in srgb, var(--ic) 55%, transparent); }

/* add / remove players: a small stepper trailing the last chip */
.count {
  display: inline-flex; align-items: center; gap: 2px; margin-left: 4px; padding: 2px;
  border: 1px solid var(--c-line); border-radius: 999px; background: var(--well);
}
.step {
  position: relative;
  display: grid; place-items: center;
  width: 28px; height: 28px; padding: 0;
  font-size: 14px;
  border: 0; border-radius: 50%;
  background: none; color: var(--c-muted);
  transition: background-color 0.25s, color 0.25s;
}
.step::after { content: ''; position: absolute; inset: -6px -1px; }
.step:hover:not(:disabled) { color: var(--c-accent); background: var(--c-surface-2); }

/* ---------- players ---------- */
.seats { grid-area: seats; display: flex; flex-wrap: wrap; align-items: center; gap: 12px 10px; min-height: 54px; align-content: flex-start; }
.seat { --d: 0ms; display: grid; scroll-margin: 96px 0 24px; }
.chip {
  --p: 0;
  position: relative;
  width: 54px; height: 54px; padding: 0;
  border-radius: 50%;
  border: 1px solid color-mix(in srgb, var(--ic) 50%, transparent);
  background: radial-gradient(circle at 50% 35%, var(--c-surface-2), var(--c-surface) 85%);
  color: var(--c-ink);
  transition: border-color 0.4s var(--d), color 0.4s var(--d), outline-offset 0.3s var(--ease-out);
}
.chip:hover { border-color: var(--ic); }
.chip > span { position: absolute; border-radius: 50%; pointer-events: none; }
.chip .num {
  inset: 0; display: grid; place-items: center;
  font: 600 1rem/1 var(--display); letter-spacing: 0.02em;
  transition: color 0.4s var(--d);
}
.chip .fill {
  inset: 3px;
  background: radial-gradient(circle at 36% 30%, color-mix(in srgb, var(--ic) 50%, white), var(--ic) 55%, color-mix(in srgb, var(--ic) 55%, black));
  box-shadow: 0 6px 16px -6px var(--ic);
  opacity: 0; transform: scale(0.25);
  transition: opacity 0.35s var(--d), transform 0.6s var(--ease-out) var(--d);
}
.chip .halo { inset: -2px; border: 2px solid var(--ic); opacity: 0; }
/* loop: a comet sweeping once per 16-beat loop; once: an arc filling up */
.chip .ring {
  inset: -6px;
  background: conic-gradient(from calc(var(--p) * 1turn - 0.32turn), transparent 0turn, color-mix(in srgb, var(--ic) 85%, transparent) 0.31turn, color-mix(in srgb, var(--ic) 30%, white) 0.32turn, transparent 0.322turn),
              radial-gradient(closest-side, transparent calc(100% - 2px), color-mix(in srgb, var(--ic) 22%, transparent) calc(100% - 1.5px));
  -webkit-mask: radial-gradient(closest-side, transparent calc(100% - 2.5px), #000 calc(100% - 2px));
          mask: radial-gradient(closest-side, transparent calc(100% - 2.5px), #000 calc(100% - 2px));
  opacity: 0;
  transition: opacity 0.4s var(--d);
}
/* plays once: dashed rim at rest, an arc filling up while it plays */
.seat.once .chip { border-style: dashed; border-color: color-mix(in srgb, var(--ic) 80%, transparent); }
.seat.once .chip .ring {
  background: conic-gradient(var(--ic) calc(var(--p) * 1turn), color-mix(in srgb, var(--ic) 22%, transparent) 0);
}
.chip.on { border-color: transparent; }
.chip.on .num { color: var(--on-hue, #1a0e07); }
.chip.on .fill { opacity: 1; transform: scale(1); }
.chip.on .ring { opacity: 1; }
.seat.selected .chip { outline: 2px solid var(--c-accent); outline-offset: 8px; }

/* ---------- small screens ---------- */
@media (max-width: 760px) {
  main { padding-top: 20px; }
  .top { grid-template-columns: minmax(0, 1fr); align-items: start; gap: 16px; }
  .transport { justify-items: stretch; }
  .transport-main > button { flex: 1; justify-content: center; }
  .tempo { width: 100%; }
  .sub { font-size: 0.86rem; }
  .proscenium { padding: 8px; margin-bottom: 32px; }
  .chords span { font-size: 0.8rem; padding-left: 4px; }
  .cell { padding: 0 1px; }
}
@media (max-width: 400px) {
  .strip { padding: 14px 12px 12px; gap: 12px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; }
  .seat { --d: 0ms !important; }
}