.score-track-entry { display:flex; align-items:center; justify-content:center; gap:6px; padding:0 8px; min-height:44px; border:0; background:transparent; color:#52675f; font-size:14px; }
.score-track-entry .icon { width:14px; height:14px; }
.score-track-entry[aria-expanded="true"] { color:var(--v2-jade); background:#edf4ef; border-radius:6px; }
.score-track-panel { position:fixed; margin:0; padding:14px 16px; max-height:calc(100dvh - 24px); overflow:auto; border:1px solid #d1dad4; border-radius:12px; background:var(--v2-paper); box-shadow:0 12px 36px #173c3025; color:#354e44; font-size:12px; }
.score-track-panel>header { display:grid; grid-template-columns:85px minmax(0,1fr) var(--track-close-size,32px); gap:8px; align-items:center; padding-bottom:12px; margin-bottom:6px; border-bottom:1px solid #e2e8e0; }
.score-track-panel>header strong { font:700 16px/1.3 "Songti SC","STSong",serif; }
.score-track-panel [data-track-close] { display:grid; place-items:center; width:32px; height:32px; padding:6px; border:0; background:transparent; color:#708077; border-radius:6px; }
.score-track-panel [data-track-close]:hover { background:#edf4ef; }
.track-columns,.track-row { display:grid; grid-template-columns:56px 38px 38px minmax(100px,1fr) minmax(110px,1.2fr); gap:8px; align-items:center; }
.track-columns { padding:7px 0; color:#708077; font-size:11px; }
.track-columns>span:nth-child(2),.track-columns>span:nth-child(3) { text-align:center; }
.track-group { border-top:1px solid #e6ebe6; }
.track-row { min-height:48px; }
.track-display-items { display:flex; flex-wrap:nowrap; gap:2px; width:max-content; max-width:100%; min-width:0; overflow-x:auto; border:1px solid #e1e7df; border-radius:8px; padding:3px; margin:0; background:#eef1eb; }
.track-display-items legend { position:absolute; width:1px; height:1px; overflow:hidden; clip-path:inset(50%); }
.track-display-items label { position:relative; display:flex; align-items:center; justify-content:center; flex:none; min-height:28px; padding:3px 5px; border:1px solid transparent; border-radius:5px; color:#849087; font-size:12px; font-weight:600; white-space:nowrap; cursor:pointer; }
.track-display-items input { position:absolute; inset:0; width:100%; height:100%; min-height:0; margin:0; opacity:0; cursor:inherit; }
.track-display-items label:has(input:checked) { color:#35614d; background:#fffefa; border-color:#ccd8cc; box-shadow:0 1px 2px #294d4209; }
.track-display-items label:has(input:not(:disabled)):hover { color:#285640; border-color:#b7cbbd; }
.track-display-items label:has(input:focus-visible) { outline:2px solid #7ea68f; outline-offset:1px; }
.track-display-items label:has(input:disabled) { cursor:default; }
.track-display-items .unavailable { color:#a7aea7; }
.track-prototype-note { margin:8px 0 0; color:#87948c; font-size:11px; line-height:1.5; }
.track-check { display:flex; align-items:center; justify-content:center; height:40px; cursor:pointer; }
.track-check input { width:16px; height:16px; min-height:0; margin:0; accent-color:var(--v2-jade); cursor:pointer; }
.track-row select { width:100%; min-height:32px; padding:4px 6px; border:1px solid #d1dad4; border-radius:5px; background:#fffefa; font-size:12px; }
.track-row select:disabled { background:#f0f1ed; color:#929b94; cursor:not-allowed; }
.track-check input:disabled { opacity:.45; cursor:not-allowed; }
.track-volume { display:flex; align-items:center; gap:8px; }
.track-volume input { min-width:0; width:100%; min-height:32px; margin:0; padding:0; border:0; accent-color:var(--v2-jade); }
.track-volume output { min-width:34px; text-align:right; font-variant-numeric:tabular-nums; }
.track-playing-hint { display:block; margin-top:8px; color:#87948c; }
.track-playing-hint[hidden],.track-mobile-label { display:none; }
@media (max-width:480px) {
  .track-columns { display:none; }
  .track-row { grid-template-columns:1fr 1fr; gap:4px 12px; padding:8px 0; }
  .track-name { grid-column:1/-1; font-weight:600; }
  .track-mobile-label { display:inline; margin-right:10px; }
  .track-check { justify-content:flex-start; }
  .score-track-panel>header { grid-template-columns:1fr var(--track-close-size,32px); gap:8px; }
  .score-track-panel [data-track-close] { grid-column:2; grid-row:1; }
  .track-display-items { grid-column:1/-1; grid-row:2; }
}

.track-volume input[type="range"] { appearance:none; background:transparent; }
.track-volume input::-webkit-slider-runnable-track { height:4px; border-radius:2px; background:#c9dad1; }
.track-volume input::-webkit-slider-thumb { appearance:none; width:14px; height:14px; margin-top:-5px; border:2px solid #fffefa; border-radius:50%; background:var(--v2-jade); box-shadow:0 0 0 1px #8da99b; }
.track-volume input::-moz-range-track { height:4px; border-radius:2px; background:#c9dad1; }
.track-volume input::-moz-range-thumb { width:10px; height:10px; border:2px solid #fffefa; border-radius:50%; background:var(--v2-jade); }
@media(pointer:coarse) { .score-track-panel { --track-close-size:44px; } .track-display-items label,.track-check { min-height:44px; } .score-track-panel [data-track-close] { width:44px; height:44px; } }

.score-track-panel { inset:auto; z-index:110; box-sizing:border-box; }
.score-track-panel .icon,.score-track-entry .icon { width:14px; height:14px; fill:currentColor; }
.track-name { overflow-wrap:anywhere; }
.track-name small { display:block; font-size:11px; color:#87948c; }
.track-volume:has(input:disabled) { opacity:.45; }
.v2-track-controls,.fullscreen-track-controls { position:relative; display:flex; align-items:center; height:44px; }
.fullscreen-track-controls { display:none; }
.v2-fullscreen .fullscreen-track-controls,.workbench-v2:fullscreen .fullscreen-track-controls { display:flex; }
.hidden-track-hint { position:absolute; top:1px; right:0; display:grid; place-items:center; min-width:18px; min-height:18px; padding:0 4px; border:1px solid #c9d9cf; border-radius:10px; background:#edf4ef; color:#52675f; font-size:10px; font-weight:600; }
.hidden-track-hint[hidden],.show-sounding-tracks[hidden] { display:none; }
.hidden-track-hint.is-sounding { animation:track-breathe 1.8s ease-in-out infinite; }
@keyframes track-breathe { 50% { opacity:.35; } }
@media(prefers-reduced-motion:reduce) { .hidden-track-hint.is-sounding { animation:none; } }
.show-sounding-tracks { min-height:32px; padding:4px 10px; margin-top:8px; font-size:12px; }
.paper-key-source { display:none; }
.gtp-paper-heading .paper-key-source { display:block; position:absolute; top:1.5cqw; left:3.8462%; }
.gtp-paper-heading .transpose-summary { display:grid; gap:1px; min-height:0; padding:0; font-size:1.8cqw; line-height:1.45; color:#66736e; text-align:left; }
.gtp-paper-heading .transpose-summary span { display:grid; grid-template-columns:3em auto; gap:6px; font-size:inherit; }
.gtp-paper-heading .transpose-summary span b { font-size:inherit; font-weight:600; }
.gtp-paper-heading .transpose-summary:disabled { opacity:1; }
.workbench-v2>.transpose-popover { position:fixed; z-index:115; transform:none; width:264px; max-width:calc(100vw - 24px); box-sizing:border-box; padding:16px; border:1px solid #c8d3cc; border-radius:14px; background:#fffefa; box-shadow:0 18px 48px #173c302b; text-align:left; }
.workbench-v2>.transpose-popover label { font-size:12px; color:#62746d; }
.workbench-v2>.transpose-popover select { width:96px; min-height:38px; padding:5px 9px; border-radius:8px; background:#fff; }
.workbench-v2>.transpose-popover small { display:block; margin-top:11px; font-size:11px; line-height:1.5; }
.gtp-paper-heading { gap:0; }
.paper-metadata { display:flex; align-items:center; justify-content:center; gap:12px; max-width:94%; }
.paper-metadata small { min-width:0; overflow:hidden; white-space:nowrap; text-overflow:ellipsis; }
.paper-rhythm { position:absolute; top:1.5cqw; right:3.8462%; display:grid; gap:1px; color:#66736e; font-size:1.8cqw; line-height:1.45; text-align:right; }
.paper-rhythm b { font-size:inherit; font-weight:600; }