:root{--bg: #07080a;--panel: #0e1013;--raised: #1a1d22;--line: #262a30;--line-strong: #3f454e;--text: #f8f9fa;--muted: #c3c8cf;--accent: #5ad8c8;--on-accent: #052421;--danger: #ff8a7a;--record: #ff5a5f;--track-chords: #3ddc6a;--track-drums: #ffc83d;--vocal-1: #3d9bff;--vocal-2: #b06cff;--vocal-3: #ff8a3d;--vocal-4: #ff5fa8;--vocal-5: #2fd6e8;--vocal-6: #ff5c5c;--vocal-7: #b5e63c;--vocal-8: #7c86ff;--on-track: #0a0c10;--radius: 12px;color-scheme:dark;font-family:DM Sans,system-ui,sans-serif;color:var(--text);background:var(--panel)}*{box-sizing:border-box}body{margin:0;min-height:100vh}button,select,input{font:inherit;color:inherit}button{cursor:pointer}button:disabled{opacity:.4;cursor:default}:focus-visible{outline:2px solid var(--accent);outline-offset:2px}h2{margin:0;font-size:14px;font-weight:700}.muted{color:var(--muted);font-weight:400}.hint{margin:0;font-size:13px;color:var(--muted)}kbd{font-family:DM Mono,monospace;font-size:11px;padding:1px 5px;border:1px solid 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.song-bar{order:1;flex:1}.toolbar-end .toolbar-icons{order:2}.toolbar-end .toolbar-icons+.toolbar-icons{padding-left:0;border-left:0}.transport{order:3}.toolbar-modes{order:4;margin-left:auto}.lcd{order:5;width:100%}.lcd-cell{flex:1}.selection{order:6;width:100%}.selection .selection-chord{flex:1}}.panel{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:18px;display:flex;flex-direction:column;gap:14px;min-width:0}.timeline-wrap{--ruler-h: 18px;--strip-y: 25px;--grid-top: 20px;--track-h: 62px;--gap: 10px;--head: 32px;--chord-h: var(--track-h);--drum-top: calc(var(--head) + var(--chord-h) + var(--gap));--drum-h: var(--track-h);--drum-rows: 0;--vocal-top: calc(var(--head) + var(--chord-h) + var(--drum-rows) * (var(--drum-h) + var(--gap)) + var(--gap) + 8px);--vocal-h: var(--track-h);--lanes: 1;position:relative;display:flex;min-width:0}.timeline-wrap.has-vocals:after{content:"";position:absolute;top:calc(var(--vocal-top) - var(--gap) / 2 - 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var(--line-strong);background:var(--panel);color:var(--muted);font-size:20px}.add-slot.is-open{border-color:var(--accent);color:var(--accent)}.add-chord-menu{position:fixed;z-index:30;padding:12px;gap:10px}.add-chord-group{display:flex;flex-direction:column;gap:6px}.add-chord-chords{display:grid;grid-template-columns:repeat(3,1fr);gap:6px}.add-chord{height:48px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;border:1px solid var(--line-strong);border-radius:8px;background:var(--raised)}.add-chord:hover{border-color:var(--muted)}.add-chord:active{background:var(--accent);border-color:var(--accent);color:var(--on-accent)}.add-chord-name{font-size:15px;font-weight:700}.add-chord-roman{font-family:DM Mono,monospace;font-size:11px;color:var(--muted)}.add-chord:active .add-chord-roman{color:inherit}.add-chord-menu .progressions{display:grid;grid-template-columns:repeat(2,1fr);gap:6px}.add-chord-menu .progression{min-width:0;padding:7px 10px;border-radius:8px}.add-chord-menu .progression-numerals{white-space:normal}.add-chord-note{font-size:12px;color:var(--muted)}.add-slot:not(.is-moved):hover{border-color:var(--muted);color:var(--text)}.playhead{position:absolute;top:0;bottom:0;left:0;width:2px;background:var(--text);pointer-events:none;will-change:transform;z-index:3}.timeline-empty{position:absolute;top:var(--head);height:var(--chord-h);margin:0;display:flex;align-items:center;white-space:nowrap;font-size:14px;pointer-events:none}.timeline-empty span{color:var(--text)}.track-adds{position:absolute;left:0;right:0;top:calc(var(--vocal-top) - var(--gap) / 2 + var(--row, 0) * (var(--vocal-h) + var(--gap)));height:calc(var(--vocal-h) + var(--gap));display:flex;flex-direction:column;justify-content:center;align-items:flex-start;gap:6px;padding:0 8px}.track-add{height:28px;display:inline-flex;align-items:center;gap:6px;padding:0 10px 0 8px;border:1px solid var(--line-strong);border-radius:7px;background:var(--raised);font-size:12px;font-weight:500;color:var(--muted)}.track-add:hover{color:var(--text);border-color:var(--muted)}.timeline-wrap.has-adds:before{content:"";position:absolute;top:calc(var(--vocal-top) - var(--gap) / 2 + var(--adds-row) * (var(--vocal-h) + var(--gap)));left:0;right:0;height:1px;background:var(--line-strong);pointer-events:none}.timeline.is-empty{background:none}.vocal-row,.vocal-take,.vocal-recording{top:calc(var(--vocal-top) + var(--row, 0) * (var(--vocal-h) + var(--gap)))}.vocal-row{position:absolute;left:3px;right:3px;height:var(--vocal-h);padding:0;border:0;border-radius:10px;background:color-mix(in srgb,var(--track) 5%,transparent);cursor:pointer}.vocal-row:not(:disabled):hover{background:color-mix(in srgb,var(--track) 10%,transparent)}.vocal-row:disabled{cursor:default}.vocal-row.is-selected,.vocal-row.is-selected:not(:disabled):hover{background:color-mix(in srgb,var(--track) 13%,transparent)}.track-header.is-selectable.is-selected,.track-header.is-selectable.is-selected:hover{background:#ffffff0d}.vocal-take.is-selected{border-color:var(--text);box-shadow:0 0 0 1px var(--text)}.vocal-row.is-empty.is-selected{box-shadow:inset 0 0 0 1.5px color-mix(in srgb,var(--track) 70%,var(--text))}.vocal-row:focus-visible{outline:none;box-shadow:inset 0 0 0 1.5px var(--text)}.timeline :focus-visible{outline-color:var(--text)}.track-headers{position:relative;flex:none;width:200px}.track-header{position:absolute;left:0;right:0;display:flex;flex-wrap:wrap;align-items:center;align-content:center;gap:6px 4px;padding:0 8px}.track-volume{flex-basis:100%;height:12px;margin:0;-moz-appearance:none;appearance:none;-webkit-appearance:none;background:linear-gradient(to right,var(--muted) var(--fill),var(--line-strong) var(--fill)) center / 100% 3px no-repeat;border-radius:2px;cursor:pointer}.track-volume::-webkit-slider-thumb{-webkit-appearance:none;width:10px;height:10px;border-radius:50%;background:var(--text);border:0}.track-volume::-moz-range-thumb{width:10px;height:10px;border-radius:50%;background:var(--text);border:0}.track-volume:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.track-header.is-selected .track-volume{background-image:linear-gradient(to right,var(--accent) var(--fill),var(--line-strong) var(--fill))}.track-header.is-chords{top:var(--grid-top);height:calc(var(--head) + var(--chord-h) + var(--gap) / 2 - var(--grid-top))}.track-header.is-chords{--track: var(--track-chords)}.track-header.is-drums{--track: var(--track-drums)}.track-header:before{content:"";position:absolute;left:0;top:calc(var(--gap) / 2 + 4px);bottom:calc(var(--gap) / 2 + 4px);width:3px;border-radius:2px;background:var(--track, var(--line-strong))}.track-header.is-chords:before{top:calc(var(--head) - var(--grid-top) + 4px);bottom:calc(var(--gap) / 2 + 4px)}.track-header.is-drums{top:calc(var(--drum-top) - var(--gap) / 2);height:calc(var(--drum-h) + var(--gap))}.track-header.is-vocal{top:calc(var(--vocal-top) - var(--gap) / 2 + var(--row, 0) * (var(--vocal-h) + var(--gap)));height:calc(var(--vocal-h) + var(--gap))}.track-header.is-selectable{cursor:pointer}.track-header.is-selectable:hover{background:#ffffff08}.track-header.is-selectable .track-name{cursor:pointer}.timeline-corner{position:absolute;top:0;height:var(--ruler-h);left:0;right:0;z-index:5;display:flex;align-items:center}.unmute-all{height:26px;display:inline-flex;align-items:center;gap:6px;padding:0 8px;border:0;border-radius:6px;background:none;font-size:12px;font-weight:500;color:var(--muted)}.unmute-all svg{width:16px;height:16px}.unmute-all:hover{color:var(--text);background:var(--raised)}.song-bar{display:flex;align-items:center;gap:2px}.song-bar .menu{left:0;right:auto}.song-bar .save-btn.has-changes:after{top:4px;right:4px}.song-title{width:116px;height:34px;padding:0 6px;border:1px solid transparent;border-radius:6px;background:none;font:inherit;font-size:13px;font-weight:700;color:var(--text);text-overflow:ellipsis}.song-title::placeholder{color:var(--muted);font-weight:500}.song-title:hover{border-color:var(--line)}.song-title:focus{outline:none;border-color:var(--accent);background:var(--bg)}.track-title{flex:1;min-width:0;display:flex;align-items:center;gap:6px;color:var(--muted)}.track-header.is-selected .track-title{color:var(--accent)}.track-icon{flex:none;color:var(--track, inherit)}.track-name{flex:1;min-width:0;padding:0;border:0;background:none;text-align:left;font-size:12px;font-weight:500;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;cursor:text}.track-name-input{flex:1;min-width:0;height:24px;padding:0 6px;margin-left:-6px;border:1px solid var(--line-strong);border-radius:6px;background:var(--bg);color:var(--text);font:inherit;font-size:12px;font-weight:500}.track-name-input:focus-visible{outline:none;border-color:var(--accent)}.track-header.is-selected .track-name{color:var(--accent)}.track-btn{width:20px;height:20px;padding:0;border:0;border-radius:5px;background:none;font-family:DM Mono,monospace;font-size:11px;font-weight:500;color:color-mix(in srgb,var(--muted) 80%,transparent)}.track-btn:hover{color:var(--text)}.track-btn.is-mute[aria-pressed=true]{background:var(--raised);color:var(--text)}.track-btn.is-solo[aria-pressed=true]{background:color-mix(in srgb,var(--accent) 18%,transparent);color:var(--accent)}.vocal-take{position:absolute;height:var(--vocal-h);margin-left:3px;border-radius:10px;background:var(--track);border:1px solid color-mix(in srgb,var(--track) 55%,#000);box-shadow:inset 0 1px 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