:root{font-family:Inter,system-ui,sans-serif;color:#e8e8e8;background:#0f1115}*{box-sizing:border-box}.app{padding:24px;max-width:1200px;margin:0 auto}header{display:flex;justify-content:space-between;align-items:center;gap:24px;margin-bottom:16px}h1{margin:0;font-size:24px}.muted{margin:4px 0 0;color:#9aa0a6}.transport{display:flex;align-items:center;gap:12px}.master{display:grid;grid-template-columns:auto auto auto;gap:8px;align-items:center}button{background:#1a1f2a;color:#fff;border:1px solid #2a3240;padding:6px 12px;border-radius:8px;cursor:pointer}button:hover{border-color:#3a475a}.toolbar{display:flex;gap:8px;margin-bottom:16px;flex-wrap:wrap;align-items:center}.export{display:flex;gap:10px;align-items:center;margin-left:auto}.grid{display:flex;flex-direction:column;gap:16px}.track{position:relative;background:#11151c;border:1px solid #1f2430;border-radius:14px;padding:12px;display:grid;grid-template-columns:320px 1fr 32px;gap:12px;box-shadow:inset 0 0 0 1px #ffffff05}.track-meter{display:flex;align-items:center;justify-content:center}.track-meter canvas{width:10px;height:100%;border:1px solid #1e293b;border-radius:999px;background:#0f172a}.track-meta{display:flex;flex-direction:column;gap:10px}.track-title{display:flex;align-items:center;gap:8px}.track-title canvas{border:1px solid #1e293b;border-radius:6px;background:#0f172a;margin-left:auto}.badge{font-size:12px;padding:2px 6px;border-radius:8px;background:#2b2f36;color:#b3c0ff}.track-actions{display:flex;gap:10px;align-items:center}.track-remove-btn{position:absolute;top:-12px;right:-12px;width:32px;height:32px;padding:0;border-radius:999px;line-height:1;font-size:16px;background:#171b23;border:1px solid #2d3748;z-index:3}.track-remove-btn:hover{border-color:#475569}.inline{display:flex;gap:6px;align-items:center}.control-row{display:grid;grid-template-columns:60px 1fr auto;gap:8px;align-items:center}.control-col{display:flex;flex-direction:column;gap:10px}.knob-row{display:flex;gap:14px;align-items:flex-start}.knob-field{position:relative;display:flex;flex-direction:column;align-items:center;gap:6px;min-width:56px}.knob-label{font-size:11px;color:#9aa0a6;line-height:1}.knob-value{position:absolute;top:-18px;left:50%;transform:translate(-50%);font-size:11px;color:#e2e8f0;background:#0f172a;border:1px solid #334155;border-radius:6px;padding:2px 6px;white-space:nowrap;opacity:0;pointer-events:none;transition:opacity .12s ease}.knob-field:hover .knob-value,.knob-field:focus-within .knob-value{opacity:1}.roll{display:flex;flex-direction:column;gap:6px}.row{display:grid;grid-template-columns:48px 1fr;gap:8px;align-items:center}.note-label{color:#9aa0a6;font-size:12px;text-align:right}.steps{display:grid;grid-template-columns:repeat(16,1fr);gap:4px}.cell{height:26px;background:#151821;border-radius:6px;border:1px solid #1f2430;box-shadow:inset 0 0 0 1px #ffffff05;position:relative;padding:0}.steps .cell:nth-child(4n+1){box-shadow:inset 2px 0 #2a3240}.cell.on{background:#3b82f6;box-shadow:0 0 12px #3b82f699}.cell.tail{background:#22406d}.cell.fm.on{background:#3b82f6}.cell.audio.on{background:#22c55e;box-shadow:0 0 12px #22c55e99}.cell.drum.on{background:#f59e0b;box-shadow:0 0 12px #f59e0b99}.cell.active{border-color:#f5c542}.cell .handle{position:absolute;right:2px;top:3px;width:6px;height:20px;border-radius:3px;background:#ffffff73;cursor:ew-resize}.bpm{color:#9aa0a6;display:grid;grid-template-columns:auto 72px;align-items:center;gap:8px}.bpm input{background:#2b2f36;color:#fff;border:1px solid #3a3f47;border-radius:6px;padding:4px 6px}select{background:#2b2f36;color:#fff;border:1px solid #3a3f47;padding:4px 8px;border-radius:6px}.knob{position:relative;border-radius:50%;background:#1f2937;border:1px solid #334155;cursor:ns-resize;touch-action:none}.knob:focus-visible{outline:2px solid #60a5fa;outline-offset:2px}.knob-indicator-rotor{position:absolute;inset:0}.knob-indicator{position:absolute;left:50%;top:5px;width:2px;height:42%;transform:translate(-50%);background:#e2e8f0;border-radius:999px}.knob-center{position:absolute;left:50%;top:50%;width:34%;height:34%;transform:translate(-50%,-50%);border-radius:50%;background:#111827;border:1px solid #475569}.knob-octave{width:48px;padding:4px;text-align:center}@media(max-width:900px){.track{grid-template-columns:1fr}.track-meter{display:none}}body{margin:0;background:#0f1115}