:root{--bg: #0d0d12;--bg-elev: #16171f;--bg-elev-2: #1d1f2a;--border: #2a2d3a;--text: #e8e9f1;--text-dim: #9498ad;--accent: #8b5cf6;--accent-hot: #a78bfa;--good: #22c55e;--bad: #ef4444;--warn: #f59e0b;--radius: 14px;--radius-sm: 8px;--shadow: 0 10px 30px rgba(0, 0, 0, .4);font-family:Inter,system-ui,sans-serif}*{box-sizing:border-box}html,body,#root{margin:0;padding:0;background:var(--bg);color:var(--text);min-height:100vh;-webkit-font-smoothing:antialiased}body{background:radial-gradient(900px 500px at 20% -10%,rgba(139,92,246,.18),transparent 60%),radial-gradient(700px 400px at 110% 10%,rgba(34,197,94,.1),transparent 60%),var(--bg)}button{font:inherit;cursor:pointer;background:var(--bg-elev-2);border:1px solid var(--border);color:var(--text);padding:.6rem 1rem;border-radius:var(--radius-sm);transition:background .12s,border-color .12s,transform 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80ms;position:relative}.result-card:hover:not(:disabled){border-color:var(--accent)}.result-card:disabled{opacity:.6;cursor:progress}.result-card .thumb{width:100%;aspect-ratio:16/9;background-size:cover;background-position:center;background-color:var(--bg-elev-2);position:relative}.result-card .duration{position:absolute;right:6px;bottom:6px;background:#000000c7;color:#fff;font-size:.72rem;padding:2px 6px;border-radius:4px;font-variant-numeric:tabular-nums}.result-card .body{padding:.6rem .75rem}.result-card .title{font-size:.92rem;font-weight:500;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;line-height:1.3}.result-card .artist{font-size:.8rem;color:var(--text-dim);margin-top:4px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.processing{display:flex;flex-direction:column;gap:1.25rem;align-items:stretch;padding:2rem 1.5rem}.processing .header{display:flex;align-items:center;gap:1rem}.processing .thumb{width:80px;height:80px;border-radius:var(--radius-sm);background:var(--bg-elev-2);background-size:cover;background-position:center;flex-shrink:0}.processing h2{margin:0;font-size:1.1rem}.processing .meta{color:var(--text-dim);font-size:.85rem}.steps{display:flex;gap:.5rem;justify-content:space-between}.step{flex:1;padding:.6rem .5rem;border-radius:var(--radius-sm);background:var(--bg-elev-2);border:1px solid var(--border);font-size:.78rem;color:var(--text-dim);text-align:center;display:flex;flex-direction:column;align-items:center;gap:4px;transition:background .2s,border-color .2s,color .2s}.step.done{color:var(--good);border-color:#22c55e66}.step.active{color:var(--text);border-color:var(--accent);background:linear-gradient(180deg,rgba(139,92,246,.18),transparent)}.step .icon{width:22px;height:22px;display:grid;place-items:center;border-radius:50%;background:var(--bg-elev);border:1px solid var(--border);font-size:.75rem}.step.active .icon{border-color:var(--accent)}.step.done .icon{background:var(--good);border-color:var(--good);color:#000}.progress{width:100%;height:10px;background:var(--bg-elev-2);border-radius:999px;overflow:hidden;position:relative}.progress>.bar{height:100%;background:linear-gradient(90deg,var(--accent),var(--accent-hot));border-radius:999px;transition:width .4s ease;position:relative}.progress>.bar:after{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:linear-gradient(90deg,transparent,rgba(255,255,255,.25),transparent);animation:sweep 2s linear infinite}@keyframes sweep{0%{transform:translate(-100%)}to{transform:translate(100%)}}.progress-pct{display:flex;justify-content:space-between;font-size:.85rem;color:var(--text-dim)}.spinner{width:18px;height:18px;border-radius:50%;border:2px solid var(--border);border-top-color:var(--accent);animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.player{display:flex;flex-direction:column;gap:1rem}.player .header{display:flex;align-items:center;gap:1rem;padding:1rem 1.25rem}.player .thumb{width:64px;height:64px;border-radius:var(--radius-sm);background-size:cover;background-position:center;background-color:var(--bg-elev-2);flex-shrink:0}.player .titles{flex:1;min-width:0}.player .title{font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.player .artist{color:var(--text-dim);font-size:.9rem}.transport{display:flex;gap:.75rem;align-items:center;padding:1rem 1.25rem}.transport .play-btn{width:56px;height:56px;border-radius:50%;display:grid;place-items:center;background:linear-gradient(180deg,var(--accent-hot),var(--accent));border:none;color:#fff;font-size:1.25rem;box-shadow:0 6px 20px #8b5cf680}.transport .time{color:var(--text-dim);font-variant-numeric:tabular-nums;font-size:.9rem}.transport .scrub{flex:1;height:8px;background:var(--bg-elev-2);border-radius:999px;overflow:hidden;position:relative;cursor:pointer}.transport .scrub>.bar{position:absolute;top:0;right:0;bottom:0;left:0;width:var(--p, 0%);background:linear-gradient(90deg,var(--accent),var(--accent-hot))}.stems{display:grid;grid-template-columns:repeat(2,1fr);gap:.75rem}@media (max-width: 480px){.stems{grid-template-columns:1fr}}.stem{padding:.85rem 1rem;display:flex;align-items:center;gap:.75rem;background:var(--bg-elev-2);border:1px solid var(--border);border-radius:var(--radius-sm);transition:opacity .15s,border-color .15s}.stem.muted{opacity:.45}.stem .name{flex:1;font-weight:500;text-transform:capitalize}.stem .ctrl{font-size:.72rem;padding:4px 9px;border-radius:999px;background:var(--bg-elev);border:1px solid var(--border);color:var(--text-dim)}.stem .ctrl.on{color:var(--accent-hot);border-color:var(--accent);background:#8b5cf626}.stem .icon-tag{width:28px;height:28px;border-radius:8px;display:grid;place-items:center;background:var(--bg-elev);font-size:.95rem}.lyrics{padding:1.25rem;max-height:360px;overflow-y:auto;scroll-behavior:smooth;-webkit-mask-image:linear-gradient(to bottom,transparent,#000 12%,#000 88%,transparent);mask-image:linear-gradient(to bottom,transparent,#000 12%,#000 88%,transparent)}.lyrics .line{padding:.4rem 0;font-size:1.05rem;color:var(--text-dim);transition:color .2s,transform .2s,filter .2s;text-align:center;filter:blur(.6px)}.lyrics .line.active{color:var(--text);font-weight:600;transform:scale(1.06);filter:blur(0)}.lyrics .empty{color:var(--text-dim);text-align:center;padding:2rem 0;font-size:.9rem}.history{display:flex;flex-direction:column;gap:.75rem}.history h3{margin:0;font-size:.95rem;color:var(--text-dim);font-weight:500}.history-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:.75rem}.history-card{text-align:left;padding:0;background:var(--bg-elev);border:1px solid var(--border);border-radius:var(--radius-sm);overflow:hidden;display:flex;flex-direction:column;transition:border-color .12s,transform 80ms}.history-card:hover{border-color:var(--accent)}.history-card .thumb{width:100%;aspect-ratio:16/9;background-size:cover;background-position:center;background-color:var(--bg-elev-2)}.history-card .body{padding:.6rem .75rem}.history-card .title{font-size:.9rem;font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.history-card .artist{font-size:.8rem;color:var(--text-dim);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.history-empty{color:var(--text-dim);font-size:.9rem}.row{display:flex;gap:.5rem;align-items:center}.spacer{flex:1}.back-btn{background:transparent;border:1px solid var(--border)}