@import"https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500&display=swap";:root{--bg-primary: #0b0f1a;--bg-secondary: #111827;--bg-card: rgba(17, 24, 39, .75);--bg-card-hover: rgba(26, 35, 50, .85);--accent: #7c5cfc;--accent-hover: #9b7dff;--accent-glow: rgba(124, 92, 252, .35);--accent2: #5ce0fc;--accent-gradient: linear-gradient(135deg, #7c5cfc, #5ce0fc);--accent-gradient-warm: linear-gradient(135deg, #f59e0b, #ef4444);--text: #f1f5f9;--text-secondary: #94a3b8;--text-muted: #64748b;--border: rgba(148, 163, 184, .1);--border-glow: rgba(139, 92, 246, .4);--success: #22c55e;--warning: #f59e0b;--error: #ef4444;--radius: 16px;--radius-sm: 10px;--radius-xs: 6px;--shadow: 0 8px 32px rgba(0, 0, 0, .4);--transition: .25s ease}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:15px}body{font-family:Inter,-apple-system,sans-serif;background:var(--bg-primary);color:var(--text);line-height:1.6;min-height:100vh;overflow-x:hidden;background-image:radial-gradient(ellipse at 20% 50%,rgba(139,92,246,.08) 0%,transparent 50%),radial-gradient(ellipse at 80% 20%,rgba(6,182,212,.06) 0%,transparent 50%)}#root{min-height:100vh;display:flex;flex-direction:column}.app{max-width:720px;margin:0 auto;padding:40px 24px 60px;width:100%;transition:max-width .4s cubic-bezier(.16,1,.3,1)}.app.app--split{max-width:1100px;display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:stretch}.app__left,.app__right{display:flex;flex-direction:column;gap:24px}.header{text-align:center;margin-bottom:40px}.header .logo{font-size:2.4rem;font-weight:800;background:var(--accent-gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;letter-spacing:-.02em;margin-bottom:8px}.header .subtitle{color:var(--text-secondary);font-size:.95rem;font-weight:400}.header .badge{display:inline-block;margin-top:12px;padding:4px 14px;border-radius:100px;background:#8b5cf61f;border:1px solid rgba(139,92,246,.25);color:var(--accent-hover);font-size:.75rem;font-weight:600;letter-spacing:.04em}.card{background:var(--bg-card);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border:1px solid var(--border);border-radius:var(--radius);padding:24px;margin-bottom:20px;box-shadow:var(--shadow);transition:border-color var(--transition)}.card:hover{border-color:var(--border-glow)}.card-title{font-size:.7rem;font-weight:700;text-transform:uppercase;letter-spacing:.1em;color:var(--text-muted);margin-bottom:16px;display:flex;align-items:center;gap:8px}.card-title .icon{font-size:1rem}.dropzone{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;padding:48px 32px;border:2px dashed var(--border);border-radius:var(--radius);cursor:pointer;transition:all var(--transition);text-align:center}.dropzone:hover,.dropzone.active{border-color:var(--accent);background:#8b5cf60d;box-shadow:0 0 30px var(--accent-glow)}.dropzone .drop-icon{font-size:3rem;opacity:.5}.dropzone .drop-title{font-size:1.05rem;font-weight:600}.dropzone .drop-sub{color:var(--text-muted);font-size:.85rem}.dropzone .formats{display:flex;gap:6px}.format-tag{padding:3px 10px;border-radius:100px;background:var(--bg-secondary);color:var(--accent2);font-family:JetBrains Mono,monospace;font-size:.72rem;font-weight:500}.file-info{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;border-radius:var(--radius-sm);background:var(--bg-secondary)}.file-info .name{font-weight:600;color:var(--accent2);font-family:JetBrains Mono,monospace;font-size:.85rem}.file-info .meta{color:var(--text-muted);font-size:.8rem}.file-info .close-btn{background:none;border:none;color:var(--text-muted);cursor:pointer;padding:4px 8px;border-radius:var(--radius-xs);transition:all var(--transition);font-size:1.1rem}.file-info .close-btn:hover{color:var(--error);background:#ef44441a}.waveform-wrap{position:relative;margin-top:16px;border-radius:var(--radius-sm);overflow:hidden}.waveform-canvas{width:100%;height:80px;display:block;background:var(--bg-secondary);border-radius:var(--radius-sm)}.pitch-row{display:flex;align-items:center;gap:12px}.pitch-toggle{position:relative;width:48px;height:26px;background:var(--bg-secondary);border:1px solid var(--border);border-radius:100px;cursor:pointer;transition:all var(--transition);flex-shrink:0}.pitch-toggle.on{background:var(--accent);border-color:var(--accent)}.pitch-toggle .knob{position:absolute;top:3px;left:3px;width:18px;height:18px;border-radius:50%;background:#fff;transition:transform var(--transition);box-shadow:0 1px 4px #0000004d}.pitch-toggle.on .knob{transform:translate(22px)}.pitch-label{font-size:.9rem;font-weight:500}.pitch-presets{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-top:16px}.pitch-preset{padding:12px 8px;background:var(--bg-secondary);border:1px solid var(--border);color:var(--text-secondary);font-size:.82rem;font-weight:600;font-family:JetBrains Mono,monospace;cursor:pointer;border-radius:var(--radius-xs);transition:all var(--transition);text-align:center}.pitch-preset:hover{border-color:var(--accent);color:var(--text)}.pitch-preset.active{background:var(--accent-gradient);color:#fff;border-color:transparent;box-shadow:0 0 16px var(--accent-glow)}.pitch-preset:disabled{opacity:.3;cursor:not-allowed}.custom-pitch{display:flex;align-items:center;gap:8px;margin-top:12px;font-size:.82rem;color:var(--text-secondary)}.custom-pitch input{width:80px;padding:6px 10px;border:1px solid var(--border);border-radius:var(--radius-xs);background:var(--bg-secondary);color:var(--text);font-family:JetBrains Mono,monospace;font-size:.85rem;outline:none;transition:border-color var(--transition)}.custom-pitch input:focus{border-color:var(--accent);box-shadow:0 0 0 2px var(--accent-glow)}.ratio-info{margin-top:8px;font-size:.72rem;color:var(--text-muted);font-family:JetBrains Mono,monospace}.enhance-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:8px}.enhance-btn{display:flex;flex-direction:column;align-items:center;gap:6px;padding:14px 4px;background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius-sm);cursor:pointer;transition:all var(--transition);color:var(--text-secondary)}.enhance-btn:hover{border-color:var(--accent);color:var(--text);transform:translateY(-2px)}.enhance-btn.active{background:var(--bg-card-hover);border-color:var(--accent);color:var(--text);box-shadow:0 0 16px var(--accent-glow)}.enhance-btn .enhance-icon{font-size:1.3rem}.enhance-btn .enhance-label{font-size:.72rem;font-weight:600}.enhance-desc{margin-top:12px;padding:10px 14px;border-radius:var(--radius-xs);background:#8b5cf60f;border:1px solid rgba(139,92,246,.12);color:var(--text-secondary);font-size:.8rem}.btn{display:flex;align-items:center;justify-content:center;gap:8px;padding:14px 28px;border:none;border-radius:var(--radius-sm);font-family:Inter,sans-serif;font-size:.95rem;font-weight:700;cursor:pointer;transition:all var(--transition);width:100%}.btn:disabled{opacity:.35;cursor:not-allowed}.btn-primary{background:var(--accent-gradient);color:#fff;box-shadow:0 4px 20px var(--accent-glow)}.btn-primary:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 8px 30px var(--accent-glow)}.btn-secondary{background:var(--bg-secondary);color:var(--text);border:1px solid var(--border)}.btn-secondary:hover:not(:disabled){border-color:var(--accent);background:var(--bg-card-hover)}.btn-group{display:flex;gap:10px}.btn-group .btn{flex:1}.progress-wrap{margin-bottom:16px}.progress-bar-bg{width:100%;height:8px;border-radius:4px;background:var(--bg-secondary);overflow:hidden}.progress-bar-fill{height:100%;border-radius:4px;background:var(--accent-gradient);transition:width .3s ease}.progress-stage{text-align:center;margin-top:8px;font-size:.8rem;color:var(--text-secondary)}.progress-pct{text-align:center;font-family:JetBrains Mono,monospace;font-size:.75rem;color:var(--text-muted);margin-top:4px}.shortcut-hint{margin-left:auto;font-size:.6rem;font-weight:400;color:var(--text-muted);text-transform:none;letter-spacing:0;font-family:JetBrains Mono,monospace}.ab-switch{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-bottom:16px}.ab-btn{padding:10px 16px;background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius-xs);color:var(--text-secondary);font-family:Inter,sans-serif;font-size:.85rem;font-weight:600;cursor:pointer;transition:all var(--transition);text-align:center}.ab-btn:hover:not(:disabled){border-color:var(--accent);color:var(--text)}.ab-btn.active{background:var(--accent-gradient);color:#fff;border-color:transparent;box-shadow:0 0 12px var(--accent-glow)}.ab-btn:disabled{opacity:.3;cursor:not-allowed}.playback-progress{margin-bottom:16px}.playback-time{display:flex;justify-content:space-between;margin-top:6px;font-family:JetBrains Mono,monospace;font-size:.72rem;color:var(--text-muted)}.transport{display:flex;justify-content:center;gap:16px}.transport-btn{width:48px;height:48px;display:flex;align-items:center;justify-content:center;background:var(--bg-secondary);border:1px solid var(--border);border-radius:50%;color:var(--text-secondary);font-size:1.2rem;cursor:pointer;transition:all var(--transition)}.transport-btn:hover{border-color:var(--accent);color:var(--text);transform:scale(1.1)}.transport-btn.play-btn{width:56px;height:56px;font-size:1.4rem;background:var(--accent-gradient);color:#fff;border:none;box-shadow:0 4px 20px var(--accent-glow)}.transport-btn.play-btn:hover{box-shadow:0 6px 28px var(--accent-glow)}.transport-btn.play-btn.playing{background:var(--accent-gradient-warm);box-shadow:0 4px 20px #f59e0b59}.playback-hint{margin-top:12px;text-align:center;font-size:.75rem;color:var(--text-muted)}.footer{grid-column:1 / -1;text-align:center;padding:32px 0;color:var(--text-muted);font-size:.75rem}.enhance-btn.gated{border-color:#f59e0b4d;background:#f59e0b0d}.pro-label{font-size:.6rem;font-weight:800;background:#f59e0b;color:#fff;padding:1px 4px;border-radius:3px;margin-left:.25rem;vertical-align:middle}.gated-btn{background:linear-gradient(135deg,#f59e0b,#d97706)!important;border:none!important;box-shadow:0 4px 12px #f59e0b4d}.gated-tip{font-size:.7rem;color:#f59e0b;margin-top:.5rem;text-align:center;font-weight:500}.app-container{min-height:100vh;background:var(--bg-primary)}.app{padding-top:1.5rem}@keyframes fadeUp{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}.fade-up{animation:fadeUp .4s ease forwards}@keyframes pulse{0%,to{box-shadow:0 4px 20px var(--accent-glow)}50%{box-shadow:0 4px 30px #8b5cf680}}.btn-primary.pulse{animation:pulse-blue 2s infinite}.btn-run{background:#ff2d2d1a;border:1px solid rgba(255,60,60,.6);color:#ff6e6e;box-shadow:0 0 15px #ff3c3c4d;transition:all var(--transition);font-weight:700;letter-spacing:.05em;text-transform:uppercase}.btn-run:hover:not(:disabled){background:#ff2d2d33;border-color:#ff4d4d;box-shadow:0 0 25px #ff3c3c99;color:#fff;transform:translateY(-1px)}.btn-run:active:not(:disabled){transform:translateY(1px)}.btn-run:disabled{opacity:.4;cursor:not-allowed;box-shadow:none}.btn-run.pulse-red{animation:pulse-red 2s infinite}@keyframes pulse-red{0%{box-shadow:0 0 #ff3c3c66}70%{box-shadow:0 0 0 15px #ff3c3c00}to{box-shadow:0 0 #ff3c3c00}}@keyframes pulse-blue{0%,to{box-shadow:0 4px 20px var(--accent-glow)}50%{box-shadow:0 4px 30px #8b5cf680}}.pulse{animation:pulse 2s ease-in-out infinite}@keyframes shimmer{0%{background-position:-200% 0}to{background-position:200% 0}}@media(max-width:600px){.app{padding:24px 16px 40px}.header .logo{font-size:1.8rem}.enhance-grid,.pitch-presets{grid-template-columns:repeat(3,1fr)}}@media(max-width:900px){.app.app--split{grid-template-columns:1fr;max-width:720px}}.flex{display:flex}.flex-col{flex-direction:column}.flex-1{flex:1}.justify-center{justify-content:center}.justify-between{justify-content:space-between}.w-full{width:100%}.h-full{height:100%}.m-0{margin:0}.mb-3{margin-bottom:12px}.app__left>*,.app__right>*{flex:1 1 0%;margin-bottom:0!important}.app__left .card,.app__right .card{display:flex;flex-direction:column}.solfeggio-section{margin-top:16px}.solfeggio-label{font-size:.65rem;font-weight:700;text-transform:uppercase;letter-spacing:.05em;color:var(--text-muted);margin-bottom:8px;display:block}.solfeggio-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:6px}.solfeggio-btn{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:6px 2px;background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius-xs);cursor:pointer;transition:all var(--transition);color:var(--text-secondary)}.solfeggio-btn:hover{border-color:var(--accent);color:var(--text)}.solfeggio-btn.active{background:var(--accent-gradient);color:#fff;border-color:transparent;box-shadow:0 0 10px var(--accent-glow)}.solfeggio-btn .sol-freq{font-size:.72rem;font-weight:700;font-family:JetBrains Mono,monospace}.solfeggio-btn .sol-desc{font-size:.5rem;text-transform:uppercase;letter-spacing:.02em;opacity:.7;margin-top:1px}