:root{--bg:#0a0a0f;--bg-elev:#14141d;--bg-elev-2:#1c1c28;--border:#2a2a3a;--text:#f0f0f5;--text-dim:#9a9ab0;--text-faint:#6a6a80;--accent:#7c5cff;--accent-2:#2dd4bf;--danger:#ff5c7c;--radius:12px;--radius-sm:8px;--shadow:0 8px 30px rgba(0,0,0,.4);--font:ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;--mono:ui-monospace,"SF Mono",Menlo,monospace}*{box-sizing:border-box}body,html{margin:0;padding:0;background:var(--bg);color:var(--text);font-family:var(--font);-webkit-font-smoothing:antialiased}body{background:radial-gradient(1200px 600px at 80% -10%,rgba(124,92,255,.12),transparent),radial-gradient(900px 500px at -10% 10%,rgba(45,212,191,.08),transparent),var(--bg);min-height:100vh}a{color:var(--accent);text-decoration:none}button{font-family:inherit;cursor:pointer}.container{max-width:1040px;margin:0 auto;padding:32px 24px 80px}.brand{display:flex;align-items:center;gap:12px;font-weight:700;letter-spacing:-.02em;font-size:20px}.brand .dot{width:14px;height:14px;border-radius:50%;background:linear-gradient(135deg,var(--accent),var(--accent-2));box-shadow:0 0 18px rgba(124,92,255,.7)}.card{background:var(--bg-elev);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow)}.muted{color:var(--text-dim)}.faint{color:var(--text-faint)}.mono{font-family:var(--mono)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid var(--border);background:var(--bg-elev-2);color:var(--text);border-radius:var(--radius-sm);padding:10px 16px;font-weight:600;font-size:14px;transition:transform .06s ease,border-color .15s ease,background .15s ease}.btn:hover{border-color:var(--accent)}.btn:active{transform:translateY(1px)}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:linear-gradient(135deg,var(--accent),#6f4dff);border-color:transparent;color:#fff}.btn-primary:hover{border-color:transparent;filter:brightness(1.08)}.btn-icon{width:40px;height:40px;padding:0;font-size:16px}.btn-sm{padding:6px 10px;font-size:12px}.btn.active{border-color:var(--accent);color:var(--accent)}.btn.active.solo{border-color:var(--accent-2);color:var(--accent-2)}input[type=range]{-webkit-appearance:none;-moz-appearance:none;appearance:none;height:4px;border-radius:4px;background:var(--bg-elev-2);outline:none}input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:14px;height:14px;border-radius:50%;background:var(--accent);cursor:pointer;border:2px solid var(--bg)}input[type=range]::-moz-range-thumb{width:14px;height:14px;border-radius:50%;background:var(--accent);cursor:pointer;border:2px solid var(--bg)}.tabs{display:inline-flex;background:var(--bg-elev-2);border-radius:var(--radius-sm);padding:4px;gap:4px}.tab{border:none;background:transparent;color:var(--text-dim);padding:8px 16px;border-radius:6px;font-weight:600;font-size:14px}.tab.active{background:var(--bg-elev);color:var(--text)}.field{width:100%;background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text);padding:12px 14px;font-size:14px}.field:focus{outline:none;border-color:var(--accent)}.dropzone{border:1.5px dashed var(--border);border-radius:var(--radius);padding:48px 24px;text-align:center;transition:border-color .15s ease,background .15s ease}.dropzone.over{border-color:var(--accent);background:rgba(124,92,255,.06)}.progress-track{height:8px;border-radius:8px;background:var(--bg-elev-2);overflow:hidden}.progress-fill{height:100%;background:linear-gradient(90deg,var(--accent),var(--accent-2));transition:width .4s ease}.stem-row{display:grid;grid-template-columns:180px 1fr 150px auto;grid-gap:16px;gap:16px;align-items:center;padding:14px 16px;border-bottom:1px solid var(--border)}.stem-row:last-child{border-bottom:none}.stem-label{display:flex;align-items:center;gap:10px;font-weight:600}.stem-swatch{width:10px;height:28px;border-radius:4px}.wave{width:100%;height:56px;display:block;cursor:pointer}.controls-cell{gap:8px}.controls-cell,.transport{display:flex;align-items:center}.transport{gap:16px;padding:16px}@media (max-width:720px){.stem-row{grid-template-columns:1fr;gap:10px}}