:root {
  color-scheme: dark;
  --bg: #14161a; --panel: #1f2329; --line: #343a43; --text: #e9ecef; --dim: #a3abb5;
  --accent: #f2a33a; --on-accent: #14161a; --danger: #ff7b7b;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font: 17px/1.4 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
main { max-width: 860px; margin: 0 auto; padding: 16px; }
h1 { font-size: 1.5rem; margin: 8px 0 2px; }
h2 { font-size: 1.05rem; margin: 20px 0 8px; color: var(--dim); }
a { color: inherit; }
.dim { color: var(--dim); }
.artist { margin: 0 0 8px; }
.error { color: var(--danger); }
.bar { display: flex; justify-content: space-between; align-items: center; gap: 8px; margin-bottom: 12px; }
.bar h1 { margin: 0; }
.tools { display: flex; flex-wrap: wrap; gap: 8px; margin: 10px 0; }
.tools input { flex: 1 1 200px; min-width: 0; }
.btn, select, input, textarea {
  font: inherit; color: var(--text); background: var(--panel); border: 1px solid var(--line);
  border-radius: 8px; padding: 9px 12px; min-height: 44px; max-width: 100%;
}
.btn { display: inline-flex; align-items: center; text-decoration: none; cursor: pointer; }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--on-accent); font-weight: 600; }
.btn.danger { color: var(--danger); margin-top: 24px; }
.list { display: grid; gap: 8px; margin-top: 12px; }
.row { display: block; padding: 12px; background: var(--panel); border: 1px solid var(--line); border-radius: 8px; text-decoration: none; }
.row span { display: block; font-size: .9rem; }
.form { display: grid; gap: 8px; }
.form input, .form select, .form textarea { width: 100%; }
textarea { font: 15px/1.45 ui-monospace, Consolas, monospace; white-space: pre; overflow-x: auto; }
.summary { margin: 4px 0 16px; color: var(--accent); font-weight: 600; }
.lyrics { font-size: 1.1rem; }
.section { color: var(--dim); font-weight: 600; margin: 14px 0 2px; }
.gap { height: .6em; }
.line { display: flex; flex-wrap: wrap; align-items: flex-end; margin-bottom: 6px; }
.unit { display: inline-flex; flex-direction: column; min-width: 0; }
.word { white-space: pre-wrap; }
.chord, .chord-space { display: block; font: 700 .95rem/1.5 system-ui, sans-serif; min-height: 1.5em; }
.chord { color: var(--accent); background: none; border: 0; padding: 0 8px 0 0; text-align: left; cursor: pointer; white-space: nowrap; }
.chord:hover, .chord:focus-visible { text-decoration: underline; outline: none; }
.chord.unknown { color: var(--danger); cursor: default; }
.preview { background: var(--panel); border: 1px solid var(--line); border-radius: 8px; padding: 12px; }
.bar-actions { display: flex; flex-wrap: wrap; gap: 8px; justify-content: flex-end; }
.sync-box { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 12px; margin: 12px 0; }
.sync-box h2 { margin: 0 0 8px; }
.sync-row { margin: 4px 0; }
.sync-check { display: flex; gap: 8px; align-items: center; padding: 6px 0; }
.sync-check input { min-height: 0; width: 20px; height: 20px; flex: none; }
.sync-ok { color: var(--dim); }
.sync-end { margin-top: 24px; }
.conflict { border-top: 1px solid var(--line); padding: 10px 0; }
.versions { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 10px; margin: 8px 0; }
.version { min-width: 0; }
.version p { margin: 2px 0 6px; font-size: .9rem; }
.version pre { margin: 0; max-height: 220px; overflow: auto; background: var(--bg); padding: 8px; border-radius: 6px; font: 13px/1.4 ui-monospace, Consolas, monospace; white-space: pre-wrap; }
.btn.on { background: var(--accent); border-color: var(--accent); color: var(--on-accent); }
.btn:disabled { opacity: .45; cursor: default; }
main:has(.transport) { max-width: 1120px; padding-bottom: 150px; }
.song-layout { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: 20px; align-items: start; }
.line { cursor: pointer; border-radius: 6px; padding: 0 4px; margin-left: -4px; }
.line.current { background: rgb(242 163 58 / .22); box-shadow: inset 3px 0 0 var(--accent); }
.stem-panel { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 12px; position: sticky; top: 12px; max-height: calc(100vh - 170px); overflow-y: auto; }
.stem-panel h2 { margin: 0; }
.stem-panel label { display: block; color: var(--dim); font-size: .9rem; margin: 8px 0; }
.stem-panel label select, .stem-panel label input { display: block; width: 100%; margin-top: 4px; }
.panel-head { display: flex; justify-content: space-between; align-items: center; }
.panel-close, .panel-open { display: none; }
.stem { display: grid; grid-template-columns: 1fr auto auto auto; gap: 6px; align-items: center; padding: 10px 0; border-bottom: 1px solid var(--line); }
.stem .btn { padding: 6px 9px; }
.stem strong { overflow-wrap: anywhere; }
.stem input[type=range], .stem select { grid-column: 1 / -1; width: 100%; }
.stem select[hidden] { display: none; }
input[type=range] { accent-color: var(--accent); padding: 0; border: 0; background: none; min-height: 32px; }
.stem-status, .split-help { font-size: .9rem; }
.transport { position: fixed; left: 0; right: 0; bottom: 0; z-index: 5; background: #1a1d22; border-top: 1px solid var(--line); padding: 8px 16px; }
.bar-seek { display: flex; align-items: center; gap: 10px; max-width: 1088px; margin: 0 auto; }
.bar-seek input { flex: 1; min-width: 0; }
.time { font-variant-numeric: tabular-nums; white-space: nowrap; font-size: .9rem; }
.bar-tools { display: flex; flex-wrap: wrap; gap: 6px; max-width: 1088px; margin: 4px auto 0; }
.bar-tools .btn, .bar-tools select { padding: 6px 10px; }
@media (max-width: 820px) {
  main:has(.transport) { padding-bottom: 190px; }
  .song-layout { display: block; }
  .stem-panel { display: none; }
  .stem-panel.open { display: block; position: fixed; left: 0; right: 0; bottom: 0; top: 15vh; max-height: none; z-index: 8; border-radius: 12px 12px 0 0; }
  .panel-close, .panel-open { display: inline-flex; }
}
#chord-popup { position: fixed; z-index: 10; background: #2b3038; border: 1px solid var(--line); border-radius: 10px; padding: 10px; box-shadow: 0 6px 20px rgb(0 0 0 / .5); max-width: 220px; }
#chord-popup[hidden] { display: none; }
#chord-popup p { margin: 4px 0 0; font-size: .9rem; }
.popup-title { font-weight: 700; color: var(--accent); text-align: center; }
.d-line { stroke: var(--dim); stroke-width: 1; }
.d-nut { fill: var(--text); }
.d-dot { fill: var(--accent); }
.d-open { fill: none; stroke: var(--text); stroke-width: 1.5; }
.d-text { fill: var(--text); font: 13px system-ui, sans-serif; }