:root {
  color-scheme: light;
  --page: #f9f9f7;
  --surface: #fcfcfb;
  --ink: #0b0b0b;
  --ink2: #52514e;
  --muted: #898781;
  --grid: #e1e0d9;
  --axis: #c3c2b7;
  --border: rgba(11, 11, 11, 0.10);
  --wash: rgba(11, 11, 11, 0.05);
  --s1: #2a78d6;  /* right hand / melody */
  --s2: #eb6834;  /* left hand / accompaniment */
  --s3: #1baf7a;  /* notes outside the score */
  --sel: rgba(42, 120, 214, 0.10);
  --on-accent: #ffffff;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --page: #0d0d0d;
    --surface: #1a1a19;
    --ink: #f0efec;
    --ink2: #c3c2b7;
    --muted: #898781;
    --grid: #2c2c2a;
    --axis: #383835;
    --border: rgba(255, 255, 255, 0.10);
    --wash: rgba(255, 255, 255, 0.06);
    --s1: #3987e5;
    --s2: #d95926;
    --s3: #199e70;
    --sel: rgba(57, 135, 229, 0.16);
  }
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--page);
  color: var(--ink);
  font: 14px/1.5 system-ui, -apple-system, "Segoe UI", "Malgun Gothic", sans-serif;
}
button, select, textarea { font: inherit; color: inherit; }
h2 { font-size: 15px; font-weight: 600; margin: 0; }

.top {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 14px 20px 6px; flex-wrap: wrap;
}
.brand { display: flex; align-items: baseline; gap: 14px; flex-wrap: wrap; }
.logo { font-size: 18px; font-weight: 700; letter-spacing: -0.01em; }
.piece { color: var(--ink2); }
.take-pick { display: flex; align-items: center; gap: 8px; color: var(--ink2); }
select {
  background: var(--surface); border: 1px solid var(--border); border-radius: 8px;
  padding: 6px 10px; max-width: 320px;
}

.transport {
  position: sticky; top: 0; z-index: 20;
  display: flex; align-items: center; gap: 14px; flex-wrap: wrap;
  padding: 10px 20px; background: var(--page); border-bottom: 1px solid var(--border);
}
.play {
  width: 40px; height: 40px; border-radius: 50%; border: 0; cursor: pointer;
  background: var(--s1); color: var(--on-accent); font-size: 15px; line-height: 1;
}
.play:disabled { opacity: 0.5; cursor: progress; }
.seg { display: inline-flex; border: 1px solid var(--border); border-radius: 8px; overflow: hidden; }
.seg button { border: 0; background: transparent; padding: 7px 12px; cursor: pointer; color: var(--ink2); }
.seg button.on { background: var(--ink); color: var(--page); }
.seg button:disabled { opacity: 0.4; cursor: not-allowed; }
.clock { font-variant-numeric: tabular-nums; font-size: 16px; font-weight: 600; }
.dim { color: var(--muted); font-weight: 400; }
.where { color: var(--ink2); min-width: 130px; }
.loop { color: var(--ink2); display: flex; align-items: center; gap: 6px; }
.status { color: var(--muted); margin-left: auto; }

.layout {
  display: grid; grid-template-columns: minmax(0, 1fr) 340px; gap: 16px;
  padding: 16px 20px 40px; align-items: start;
}
@media (max-width: 1080px) { .layout { grid-template-columns: minmax(0, 1fr); } }
.main-col { display: flex; flex-direction: column; gap: 16px; min-width: 0; }
.side-col { display: flex; flex-direction: column; gap: 16px; position: sticky; top: 72px; }
@media (max-width: 1080px) { .side-col { position: static; } }

.card { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 16px; }
.card-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 12px; flex-wrap: wrap; }
.tools { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.sel-label { color: var(--ink2); font-size: 13px; }
.ghost { border: 1px solid var(--border); background: transparent; border-radius: 8px; padding: 4px 10px; cursor: pointer; font-size: 13px; }
.ghost:hover { background: var(--wash); }

.tiles { display: grid; grid-template-columns: repeat(auto-fit, minmax(120px, 1fr)); gap: 12px; }
.tile { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 12px 14px; }
.tile .k { color: var(--ink2); font-size: 12.5px; }
.tile .v { font-size: 24px; font-weight: 650; letter-spacing: -0.02em; margin-top: 2px; }
.tile .v small { font-size: 13px; font-weight: 500; color: var(--ink2); margin-left: 2px; }
.tile .s { color: var(--muted); font-size: 12px; margin-top: 2px; }
.tile .d { font-size: 12px; color: var(--ink2); margin-top: 2px; }

.timeline { position: relative; user-select: none; cursor: crosshair; }
.timeline svg { display: block; width: 100%; }
.panel { margin-top: 10px; }
.panel-title { font-size: 12.5px; font-weight: 600; margin-bottom: 2px; display: flex; gap: 10px; align-items: baseline; flex-wrap: wrap; }
.panel-title .unit { font-weight: 400; color: var(--muted); }
.legend { display: inline-flex; gap: 12px; font-weight: 400; color: var(--ink2); margin-left: auto; }
.legend i { display: inline-block; width: 10px; height: 10px; border-radius: 2px; margin-right: 5px; vertical-align: -1px; }
.legend i.line { height: 2px; width: 14px; border-radius: 1px; vertical-align: 3px; }
.legend i.dash { height: 0; width: 14px; border-top: 2px dashed var(--muted); background: none !important; vertical-align: 3px; }

.overlay { position: absolute; top: 0; bottom: 0; pointer-events: none; }
.overlay.playhead { width: 2px; margin-left: -1px; background: var(--ink); opacity: 0.85; }
.overlay.hover { width: 1px; background: var(--muted); opacity: 0.6; }
.overlay.sel { background: var(--sel); border-left: 1px solid var(--s1); border-right: 1px solid var(--s1); }
.tooltip {
  position: absolute; z-index: 5; pointer-events: none; min-width: 170px;
  background: var(--surface); border: 1px solid var(--border); border-radius: 8px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.14); padding: 8px 10px; font-size: 12.5px;
}
.tooltip .t { font-weight: 600; margin-bottom: 4px; }
.tooltip .r { display: flex; justify-content: space-between; gap: 14px; color: var(--ink2); }
.tooltip .r b { color: var(--ink); font-weight: 600; font-variant-numeric: tabular-nums; }
.tooltip .r i { display: inline-block; width: 8px; height: 8px; border-radius: 2px; margin-right: 5px; }

svg text { fill: var(--muted); font-size: 11px; font-family: inherit; }
svg text.lbl { fill: var(--ink2); }
svg text.strong { fill: var(--ink); font-weight: 600; }
svg .grid { stroke: var(--grid); stroke-width: 1; }
svg .barline { stroke: var(--grid); stroke-width: 1; }
svg .secline { stroke: var(--axis); stroke-width: 1; }
svg .axis { stroke: var(--axis); stroke-width: 1; }
svg .ref { stroke: var(--muted); stroke-width: 1; stroke-dasharray: 4 4; }
svg .ln { fill: none; stroke-width: 2; stroke-linejoin: round; stroke-linecap: round; }
svg .prev { fill: none; stroke: var(--muted); stroke-width: 1.5; stroke-dasharray: 3 3; }

.table-view { margin-top: 12px; color: var(--ink2); }
.table-view summary { cursor: pointer; font-size: 13px; }
.table-view table { border-collapse: collapse; width: 100%; margin-top: 8px; font-size: 12.5px; font-variant-numeric: tabular-nums; }
.table-view th, .table-view td { text-align: right; padding: 3px 8px; border-bottom: 1px solid var(--grid); }
.table-view th:first-child, .table-view td:first-child { text-align: left; }
#barTable { max-height: 300px; overflow: auto; }

.insights { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 12px; }
.insight { border: 1px solid var(--border); border-radius: 10px; padding: 12px 14px; }
.insight h3 { margin: 0 0 4px; font-size: 13.5px; }
.insight p { margin: 0; color: var(--ink2); }
.insight button { margin-top: 8px; }
.footnote { color: var(--muted); font-size: 12px; margin: 14px 0 0; }

.scope { font-size: 13px; color: var(--ink2); margin-bottom: 8px; }
.scope b { color: var(--ink); }
textarea {
  width: 100%; resize: vertical; background: var(--page); border: 1px solid var(--border);
  border-radius: 8px; padding: 9px 10px;
}
.chips { display: flex; flex-wrap: wrap; gap: 6px; margin: 8px 0 12px; }
.chip { border: 1px solid var(--border); background: transparent; border-radius: 999px; padding: 3px 10px; font-size: 12.5px; cursor: pointer; color: var(--ink2); }
.chip:hover { background: var(--wash); color: var(--ink); }
.primary { width: 100%; border: 0; border-radius: 8px; padding: 9px 12px; background: var(--s1); color: var(--on-accent); font-weight: 600; cursor: pointer; }
.hint { color: var(--muted); font-size: 12px; margin: 8px 0 0; }
.preview {
  margin: 10px 0 0; padding: 8px 10px; background: var(--page); border-radius: 8px; border: 1px solid var(--border);
  font: 11.5px/1.5 ui-monospace, Consolas, monospace; white-space: pre-wrap; word-break: break-word; color: var(--ink2);
  max-height: 180px; overflow: auto;
}

.takes { display: flex; flex-direction: column; gap: 8px; }
.take { border: 1px solid var(--border); border-radius: 10px; padding: 9px 12px; cursor: pointer; background: transparent; text-align: left; width: 100%; }
.take:hover { background: var(--wash); }
.take.cur { border-color: var(--s1); box-shadow: inset 0 0 0 1px var(--s1); }
.take .tt { font-weight: 600; }
.take .id { color: var(--muted); font-size: 12px; font-family: ui-monospace, Consolas, monospace; }
.take .pp { color: var(--ink2); font-size: 12.5px; margin-top: 3px; }
.take .ops { color: var(--muted); font: 11.5px/1.45 ui-monospace, Consolas, monospace; margin-top: 4px; white-space: pre-wrap; word-break: break-word; }

.credits { padding: 0 20px 28px; color: var(--muted); font-size: 12px; }
.credits a { color: var(--ink2); }