:root{--bg:#0f1115;--panel:#171a21;--panel-2:#1e222b;--line:#2a2f3a;--text:#e7e9ee;--muted:#9aa3b2;--accent:#ff7a3c;--accent-2:#ffb37a;--ok:#5fd08a;font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Noto Sans,Ubuntu,Cantarell,Helvetica Neue,sans-serif}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{background:var(--bg);color:var(--text)}.app{flex-direction:column;gap:16px;max-width:1100px;margin:0 auto;padding:18px 20px 40px;display:flex}.topbar{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;display:flex}.brand{align-items:center;gap:14px;display:flex}.logo{font-size:34px}.brand h1{letter-spacing:.5px;margin:0;font-size:26px}.tagline{color:var(--muted);margin:2px 0 0;font-size:13px}.status{color:var(--muted);background:var(--panel);border:1px solid var(--line);border-radius:20px;padding:6px 12px;font-size:13px}.status.ok{color:var(--ok);border-color:#2c4a37}.controls,.humanize,.tracks,.import-zone{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:16px}.controls{flex-wrap:wrap;align-items:center;gap:22px;display:flex}.transport{gap:10px;display:flex}.btn{background:var(--panel-2);color:var(--text);border:1px solid var(--line);cursor:pointer;border-radius:10px;padding:10px 16px;font-size:15px;transition:transform 50ms,border-color .15s,background .15s}.btn:hover:not(:disabled){border-color:var(--accent)}.btn:active:not(:disabled){transform:translateY(1px)}.btn:disabled{opacity:.45;cursor:not-allowed}.btn.primary{background:linear-gradient(180deg, var(--accent-2), var(--accent));color:#201007;border:none;min-width:120px;font-weight:600}.btn.small{padding:6px 12px;font-size:13px}.ctl{flex-direction:column;gap:6px;min-width:170px;display:flex}.ctl>span{color:var(--muted);font-size:13px}.ctl b{color:var(--text);font-weight:600}input[type=range]{accent-color:var(--accent);cursor:pointer}.instrument-picker{min-width:160px}.instrument-picker select{border:1px solid var(--line);background:var(--panel,#fff);color:var(--text);cursor:pointer;border-radius:8px;padding:8px 10px;font-size:14px}.instrument-picker select:disabled{opacity:.5;cursor:default}.hz-head{flex-wrap:wrap;align-items:center;gap:16px;display:flex}.switch{cursor:pointer;align-items:center;gap:8px;font-weight:600;display:flex}.switch input{width:18px;height:18px;accent-color:var(--accent)}.hz-stats{color:var(--muted);font-size:12px}.hint{color:var(--muted);margin:10px 0 14px;font-size:12.5px;line-height:1.5}.sliders{flex-wrap:wrap;gap:26px;display:flex}.sliders[data-disabled=true]{opacity:.4}.sheet-wrap{border:1px solid var(--line);background:#fbfbfa;border-radius:14px;min-height:360px;max-height:62vh;padding:10px;overflow:auto}.sheet{color:#111}.foot{text-align:center;color:var(--muted);flex-direction:column;gap:4px;font-size:12px;display:flex}.foot a{color:var(--accent-2)}.foot .credits{opacity:.8;font-size:11px}.cab-toggle{font-size:13px}.tracks-head{flex-wrap:wrap;align-items:baseline;gap:14px;margin-bottom:12px;display:flex}.tracks-head h2{margin:0;font-size:16px}.mix-note{color:var(--accent-2);font-size:12px;line-height:1.4}.track-list{flex-direction:column;gap:10px;display:flex}.track-row{background:var(--panel-2);border:1px solid var(--line);border-radius:10px;flex-direction:row;justify-content:space-between;align-items:center;gap:14px;min-width:0;padding:10px 14px}.track-row .track-name{color:var(--text);font-size:14px;font-weight:600}.track-row select{border:1px solid var(--line);background:var(--bg);color:var(--text);cursor:pointer;border-radius:8px;min-width:190px;padding:8px 10px;font-size:14px}.track-row select:disabled{opacity:.5;cursor:default}.import-zone{transition:border-color .15s,background .15s}.import-zone.drag{border-color:var(--accent);background:var(--panel-2)}.import-inner{flex-direction:column;align-items:flex-start;gap:8px;display:flex}.import-inner b{font-size:15px}.import-hint{color:var(--muted);font-size:12.5px;line-height:1.5}.import-actions{gap:10px;margin-top:4px;display:flex}.btn.ghost{background:0 0}.import-error{color:#ff8f6b;margin-top:4px;font-size:13px}