:root {
  --bg: #0d1017;
  --panel: #131823;
  --border: #232b3b;
  --title: #eef2f8;
  --subtitle: #7d8799;
  --control: #cfd6e2;
  --accent: #59d8c5;
  --mono: "JetBrains Mono", Menlo, Consolas, "DejaVu Sans Mono", monospace;
  color-scheme: dark;
}

* { box-sizing: border-box; }

[hidden] { display: none !important; }

html, body { margin: 0; }

body {
  background: var(--bg);
  color: var(--control);
  font: 13px/1.4 var(--mono);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

body.dragging::after {
  content: "Drop to open";
  position: fixed;
  inset: 12px;
  border: 2px dashed var(--accent);
  border-radius: 10px;
  display: grid;
  place-items: center;
  color: var(--accent);
  font-size: 18px;
  background: rgba(13, 16, 23, 0.82);
  pointer-events: none;
  z-index: 10;
}

button, select {
  font: inherit;
  color: var(--title);
  background: #1a2130;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 12px;
  cursor: pointer;
}

button:hover, select:hover { border-color: var(--subtitle); }
button:focus-visible, select:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }
button.secondary { background: transparent; }
#play { min-width: 72px; border-color: var(--accent); }

.bar {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  background: var(--panel);
  flex-wrap: wrap;
}

.brand { font-weight: 700; font-size: 18px; color: var(--title); letter-spacing: 0.5px; }
.brand span { color: var(--accent); }

.tune { flex: 1; min-width: 200px; }
.tune-title { color: var(--title); font-weight: 700; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.tune-meta { color: var(--subtitle); font-size: 12px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.chip { margin-left: 8px; }

.transport { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.time { color: var(--title); min-width: 96px; font-variant-numeric: tabular-nums; }

.status { margin: 0; padding: 8px 16px; color: var(--subtitle); font-size: 12px; border-bottom: 1px solid var(--border); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.status.error { color: #f27f7f; }

.drop { flex: 1; display: grid; place-items: center; padding: 32px 16px; }
.drop-box {
  max-width: 520px;
  text-align: center;
  border: 1px dashed var(--border);
  border-radius: 12px;
  padding: 40px 28px;
}
.drop-title { color: var(--title); font-size: 18px; font-weight: 700; margin-bottom: 12px; }
.drop-box p { color: var(--subtitle); margin: 0 0 20px; }

main { flex: 1; display: flex; flex-direction: column; min-height: 0; }

.score {
  display: flex;
  height: min(52vh, 520px);
  min-height: 300px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
}

.tracker-wrap { flex: 1; min-width: 0; overflow-x: auto; overflow-y: hidden; padding-left: 12px; }
.tracker-wrap canvas { display: block; cursor: pointer; }

.panels {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr)) minmax(0, 1.3fr);
  gap: 10px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
}
.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-top: 2px solid var(--voice);
  border-radius: 8px;
  padding: 8px 10px 10px;
  min-width: 0;
  cursor: pointer;
}
.card.selected { border-color: var(--voice); }
.card.muted { opacity: 0.45; }
.card.filter-card { cursor: default; border-top-color: var(--border); }
.card-head { color: var(--voice); font-weight: 700; font-size: 11px; letter-spacing: 0.5px; margin-bottom: 6px; }
.card-head .off { color: var(--subtitle); font-weight: 400; margin-left: 6px; text-transform: uppercase; }
.card .line { white-space: pre; height: 17px; line-height: 17px; overflow: hidden; text-overflow: ellipsis; }
.card .title { color: var(--voice); font-weight: 700; }
.card .heading { color: var(--voice); font-weight: 700; }
.card .dim { color: var(--subtitle); }
.card .lit {
  color: var(--title);
  font-weight: 700;
  background: color-mix(in srgb, var(--voice) 24%, transparent);
  margin: 0 -4px;
  padding: 0 4px;
  border-radius: 3px;
}

.filter, .sheet { padding: 12px 16px 4px; }
.section-head { display: flex; align-items: baseline; gap: 16px; flex-wrap: wrap; margin-bottom: 6px; }
.section-head h2 { margin: 0; font-size: 13px; color: var(--title); text-transform: uppercase; letter-spacing: 0.5px; }
.chord-now { color: var(--accent); font-size: 18px; font-weight: 700; }
.chord-now .label { color: var(--subtitle); font-size: 11px; font-weight: 400; text-transform: uppercase; letter-spacing: 0.5px; }
.sheet-wrap { border: 1px solid var(--border); border-radius: 8px; overflow: hidden; }
.sheet-wrap canvas { display: block; }
.readout { color: var(--control); white-space: pre-wrap; font-variant-numeric: tabular-nums; }
.filter-wrap { border: 1px solid var(--border); border-radius: 8px; overflow: hidden; }
.filter-wrap canvas { display: block; }
.hint { color: var(--subtitle); font-size: 11px; margin: 8px 0 0; }

.foot { padding: 14px 16px; color: var(--subtitle); font-size: 11px; border-top: 1px solid var(--border); margin-top: 12px; }
.foot a { color: var(--control); }

@media (max-width: 760px) {
  .score { height: 52vh; }
  .panels { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .bar { gap: 12px; }
}