*{margin:0;padding:0;box-sizing:border-box}html{background:#0a0a0a}body{background:#0a0a0a;color:#e0e0e0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;min-height:100vh;padding-top:env(safe-area-inset-top);padding-bottom:env(safe-area-inset-bottom);-webkit-user-select:none;user-select:none;-webkit-tap-highlight-color:transparent}.app{max-width:640px;margin:0 auto;padding:60px 20px;text-align:center}h1{font-size:2.5rem;font-weight:700;letter-spacing:-.02em;background:linear-gradient(120deg,#ff5f6d,#ffc371,#7afcff,#8f7aff,#ff5f6d);background-size:220% 220%;-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;filter:drop-shadow(0 0 20px rgba(255,95,109,.18));animation:titleGlow 8s ease-in-out infinite}@keyframes titleGlow{0%{background-position:0% 50%}50%{background-position:100% 50%}to{background-position:0% 50%}}.subtitle{color:#666;margin-bottom:40px}.url-input{display:flex;gap:8px;margin-bottom:32px}.url-input-field{flex:1;position:relative}.url-input input{width:100%;padding:12px 80px 12px 16px;border-radius:8px;border:1px solid #333;background:#141414;color:#e0e0e0;font-size:1rem;outline:none;transition:border-color .2s}.url-input input:focus{border-color:#555}.paste-btn{position:absolute;right:8px;top:50%;transform:translateY(-50%);padding:6px 14px;border-radius:6px;border:1px solid #444;background:#222;color:#aaa;font-size:.8rem;font-weight:600;cursor:pointer;transition:background .15s,border-color .15s}.paste-btn:hover{background:#333;border-color:#666;color:#ddd}.submit-btn{padding:12px 24px;border-radius:8px;border:none;background:#e74c3c;color:#fff;font-size:1rem;font-weight:600;cursor:pointer;transition:opacity .2s}.submit-btn:disabled{opacity:.4;cursor:not-allowed}.submit-btn:not(:disabled):hover{opacity:.85}.upload-btn{padding:12px 24px;border-radius:8px;border:1px solid #333;background:#181818;color:#ccc;font-size:1rem;font-weight:600;cursor:pointer;transition:background .15s,border-color .15s}.upload-btn:not(:disabled):hover{background:#222;border-color:#555;color:#fff}.upload-btn:disabled{opacity:.4;cursor:not-allowed}.progress-container{margin-bottom:32px}.progress-title{font-weight:600;margin-bottom:12px}.progress-bar{height:6px;background:#1a1a1a;border-radius:3px;overflow:hidden;margin-bottom:8px}.progress-fill{height:100%;background:linear-gradient(90deg,#e74c3c,#e67e22,#2ecc71,#3498db);border-radius:3px;transition:width .3s ease}.progress-message{color:#666;font-size:.85rem}.chord-display{margin-bottom:24px}.chord-current{font-size:2.5rem;font-weight:700;color:#f1c40f;letter-spacing:.02em;min-height:3.5rem}.chord-timeline{display:flex;justify-content:center;gap:6px;margin-top:8px;flex-wrap:wrap}.chord-chip{padding:3px 10px;border-radius:4px;font-size:.8rem;font-weight:600;background:#1a1a1a;color:#555;transition:all .2s}.chord-chip.active{background:#f1c40f26;color:#f1c40f;border:1px solid rgba(241,196,15,.3)}.chord-chip.no-chord{opacity:.3}.stem-player{margin-top:24px}.knobs-row{display:flex;justify-content:center;gap:24px;margin-bottom:32px;flex-wrap:wrap}.stem-knob{display:flex;flex-direction:column;align-items:center;gap:4px}.stem-knob.muted{opacity:.5}.stem-label{font-size:.75rem;font-weight:700;text-transform:uppercase;letter-spacing:.08em}.stem-btns{display:flex;gap:4px}.mute-btn,.solo-btn{background:none;border:1px solid #333;border-radius:4px;padding:2px 8px;font-size:.65rem;font-weight:600;cursor:pointer;text-transform:uppercase;letter-spacing:.05em;transition:border-color .2s,background .2s}.mute-btn:hover,.solo-btn:hover{border-color:#555}.solo-btn.active{background:#f1c40f26;border-color:#f1c40f}.waveform-transport{display:flex;align-items:center;gap:12px;padding:12px;background:#111;border-radius:12px;margin-bottom:16px}.waveform-right{flex:1;min-width:0}.waveform-area{position:relative;border-radius:6px;overflow:hidden}.waveform-area canvas{display:block}.waveform-times{display:flex;justify-content:space-between;margin-top:4px}.loop-reset-btn{position:absolute;top:6px;right:6px;background:#f1c40f33;border:1px solid rgba(241,196,15,.4);border-radius:4px;color:#f1c40f;font-size:.7rem;font-weight:600;padding:3px 8px;cursor:pointer;transition:background .15s}.loop-reset-btn:hover{background:#f1c40f59}.transport-btns{display:flex;flex-direction:column;align-items:center;gap:6px;flex-shrink:0}.rewind-btn{width:32px;height:32px;border-radius:50%;border:1px solid #333;background:#181818;color:#aaa;font-size:.85rem;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background .15s,border-color .15s}.rewind-btn:hover{background:#282828;border-color:#555;color:#ddd}.play-btn{width:48px;height:48px;border-radius:50%;border:none;background:#e74c3c;color:#fff;font-size:1.1rem;cursor:pointer;flex-shrink:0;display:flex;align-items:center;justify-content:center;transition:opacity .2s}.play-btn:hover{opacity:.85}.time{font-size:.8rem;font-variant-numeric:tabular-nums;color:#888;min-width:36px}.master-volume{display:flex;align-items:center;gap:12px;justify-content:center}.master-volume label{font-size:.8rem;color:#666;text-transform:uppercase;letter-spacing:.05em}.master-volume input[type=range]{width:120px;-webkit-appearance:none;appearance:none;height:4px;background:#333;border-radius:2px;outline:none;cursor:pointer}.master-volume input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:12px;height:12px;border-radius:50%;background:#888;cursor:pointer}.bottom-controls{display:flex;align-items:center;justify-content:center;gap:32px;flex-wrap:wrap}.action-btns{display:flex;align-items:center;justify-content:center;gap:12px;margin-top:20px}.download-btn{padding:10px 28px;border-radius:8px;border:1px solid #333;background:#181818;color:#ccc;font-size:.85rem;font-weight:600;cursor:pointer;transition:background .15s,border-color .15s}.download-btn:hover:not(:disabled){background:#222;border-color:#555;color:#fff}.download-btn:disabled{opacity:.6;cursor:not-allowed}.speed-knob{display:flex;flex-direction:column;align-items:center;gap:4px}.speed-value{font-size:.75rem;font-weight:600;font-variant-numeric:tabular-nums}.pitch-knob{display:flex;flex-direction:column;align-items:center;gap:4px}.pitch-value{font-size:.75rem;font-weight:600;font-variant-numeric:tabular-nums}.back-btn{display:inline-flex;align-items:center;gap:4px;background:none;border:none;color:#888;font-size:.85rem;cursor:pointer;padding:4px 0;margin-bottom:12px;transition:color .15s}.back-btn:hover{color:#ccc}.library{margin-top:40px;text-align:left}.library-heading{font-size:.8rem;font-weight:600;text-transform:uppercase;letter-spacing:.08em;color:#555;margin-bottom:12px}.library-list{list-style:none}.library-item{display:flex;align-items:center;gap:12px;width:100%;padding:12px 16px;border-radius:8px;border:1px solid #1a1a1a;background:#111;color:#ccc;font-size:.95rem;cursor:pointer;transition:background .15s,border-color .15s;text-align:left;margin-bottom:6px}.library-item:hover{background:#1a1a1a;border-color:#333}.library-fav{background:none;border:none;font-size:1.2rem;color:#555;cursor:pointer;flex-shrink:0;padding:0;line-height:1;transition:color .15s}.library-fav:hover,.library-fav.active{color:#f1c40f}.library-title{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;flex:1}.library-delete{background:none;border:none;font-size:1.3rem;color:#444;cursor:pointer;flex-shrink:0;padding:0 2px;line-height:1;transition:color .15s}.library-delete:hover{color:#e74c3c}.loading{color:#666;margin-top:24px}.error{color:#e74c3c;margin-top:24px}.error button{margin-top:12px;padding:8px 20px;border-radius:8px;border:1px solid #e74c3c;background:transparent;color:#e74c3c;cursor:pointer;font-size:.9rem}.error button:hover{background:#e74c3c1a}.record-mode-btns{display:flex;gap:6px}.record-btn{width:40px;height:40px;border-radius:50%;border:1px solid #333;background:#181818;color:#aaa;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:4px;transition:background .15s,border-color .15s;flex-shrink:0}.record-btn:hover{background:#282828;border-color:#555;color:#ddd}.record-btn.ready{border-color:#f39c12;color:#f39c12;width:auto;border-radius:20px;padding:0 14px;gap:6px}.record-btn.recording{border-color:#e74c3c;color:#e74c3c;width:auto;border-radius:20px;padding:0 14px;gap:6px}.record-label{font-size:.7rem;font-weight:700;letter-spacing:.05em}.ready-dot{width:8px;height:8px;border-radius:50%;background:#f39c12;flex-shrink:0}.recording-dot{width:8px;height:8px;border-radius:50%;background:#e74c3c;flex-shrink:0;animation:pulse 1s ease-in-out infinite}@keyframes pulse{0%,to{opacity:1;transform:scale(1)}50%{opacity:.4;transform:scale(.8)}}.record-mixer{display:flex;align-items:center;justify-content:center;gap:24px;flex-wrap:wrap;margin-top:16px;padding:12px 16px;background:#111;border-radius:10px;border:1px solid #222}.device-select-row{display:flex;align-items:center;gap:8px}.monitor-btn{display:flex;align-items:center;gap:6px;padding:4px 12px;border-radius:6px;border:1px solid #333;background:#1a1a1a;color:#666;font-size:.75rem;font-weight:600;cursor:pointer;transition:background .15s,border-color .15s,color .15s}.monitor-btn:hover{border-color:#555;color:#aaa}.monitor-btn.active{background:#2ecc711a;border-color:#2ecc71;color:#2ecc71}.monitor-label{letter-spacing:.03em}.device-select-row label{font-size:.8rem;color:#666;text-transform:uppercase;letter-spacing:.05em}.device-select{background:#1a1a1a;border:1px solid #333;border-radius:6px;color:#ccc;font-size:.8rem;padding:4px 8px;outline:none;max-width:180px;cursor:pointer}.device-select:focus{border-color:#555}.video-preview{border-radius:12px;overflow:hidden;background:#111;border:1px solid #333;cursor:pointer}.video-preview.pip{position:fixed;bottom:20px;right:20px;width:180px;z-index:100;box-shadow:0 4px 20px #00000080}.video-preview.pip.format-portrait{width:120px}.video-preview.pip.pip-stopped{width:260px}.video-preview.pip.pip-stopped.format-portrait{width:220px}.video-preview.pip.format-portrait .preview-video{aspect-ratio:9 / 16;object-fit:cover}.video-preview.pip.format-landscape .preview-video{width:100%}.video-preview.expanded{position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);width:90%;max-width:640px;z-index:200;box-shadow:0 8px 40px #000c;cursor:default}.video-preview.expanded.format-portrait{max-width:360px}.video-preview.expanded.format-portrait .preview-video,.video-preview.expanded.format-portrait .playback-video{aspect-ratio:9 / 16;object-fit:cover}.preview-video{width:100%;display:block;border-radius:12px 12px 0 0;transform:scaleX(-1)}.video-preview.pip .preview-video{border-radius:12px}.playback-video{width:100%;display:block}.playback-audio{width:100%;display:block;padding:16px}.video-preview.pip .playback-audio{padding:8px}.recording-controls{cursor:default}.recording-actions{display:flex;gap:6px;padding:8px;justify-content:center;flex-wrap:wrap}.video-preview.pip .recording-actions{flex-direction:column;padding:6px;gap:4px}.rec-action-btn{padding:6px 16px;border-radius:6px;border:1px solid #444;background:#222;color:#ccc;font-size:.8rem;font-weight:600;cursor:pointer;transition:background .15s,border-color .15s}.video-preview.pip .rec-action-btn{width:100%;padding:6px 8px;font-size:.75rem}.rec-action-btn:hover{background:#333;border-color:#666;color:#fff}@media(max-width:700px){.knobs-row{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;justify-items:center}.bottom-controls{gap:20px}.record-mixer{gap:16px}.device-select{max-width:160px}.video-preview.pip{position:static;right:auto;bottom:auto;width:100%;max-width:100%;margin-top:12px;z-index:auto;box-shadow:none}.video-preview.pip.format-portrait{width:100%;max-width:220px;margin-left:auto;margin-right:auto}.video-preview.pip.pip-stopped{width:100%}.video-preview.pip.pip-stopped.format-portrait{width:100%;max-width:220px}}@media(max-width:480px){.app{padding:32px 12px}h1{font-size:1.8rem}.url-input{flex-direction:row;align-items:stretch;gap:6px}.url-input-field{min-width:0}.submit-btn,.upload-btn{width:auto;min-width:78px;padding:0 14px;min-height:48px;flex:0 0 auto;white-space:nowrap}.url-input input{padding:14px 80px 14px 16px;min-height:48px}.chord-current{font-size:2rem;min-height:2.5rem}.knobs-row{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-bottom:20px}.waveform-transport{gap:8px;padding:8px}.time{font-size:.7rem;min-width:28px}.play-btn{width:44px;height:44px;font-size:.95rem}.bottom-controls{gap:16px}.master-volume input[type=range]{width:80px}.mute-btn,.solo-btn{padding:4px 10px;font-size:.7rem;min-height:28px}.library-item{padding:14px 16px;min-height:48px}.back-btn{min-height:44px;font-size:.9rem}.record-mixer{flex-direction:column;gap:12px}.device-select{max-width:100%;width:100%}.action-btns{flex-wrap:wrap}}.library-key-overlay{position:fixed;inset:0;background:#000000d9;display:flex;align-items:center;justify-content:center;z-index:1000;padding:20px}.library-key-modal{background:#141414;border:1px solid #333;border-radius:16px;padding:32px;max-width:400px;width:100%;text-align:center}.library-key-modal h2{font-size:1.4rem;margin-bottom:8px}.library-key-display{font-family:SF Mono,Fira Code,Cascadia Code,monospace;font-size:1.6rem;font-weight:700;letter-spacing:.08em;color:#7afcff;background:#0d0d0d;border:1px solid #333;border-radius:8px;padding:16px;user-select:all;-webkit-user-select:all}.library-key-input{width:100%;padding:14px 16px;border-radius:8px;border:1px solid #333;background:#0d0d0d;color:#e0e0e0;font-family:SF Mono,Fira Code,Cascadia Code,monospace;font-size:1.1rem;text-align:center;letter-spacing:.06em;outline:none;transition:border-color .2s}.library-key-input:focus{border-color:#555}.library-key-badge{display:inline-block;font-family:SF Mono,Fira Code,Cascadia Code,monospace;font-size:.7rem;color:#555;background:#141414;border:1px solid #222;border-radius:4px;padding:2px 8px;margin-bottom:24px;cursor:pointer;transition:color .15s,border-color .15s}.library-key-badge:hover{color:#999;border-color:#444}.sync-badge{font-size:.65rem;font-weight:600;padding:2px 8px;border-radius:10px;flex-shrink:0;text-transform:uppercase;letter-spacing:.04em}.sync-badge--pending{background:#222;color:#888}.sync-badge--syncing{background:#3498db26;color:#3498db}.sync-badge--error{background:#e74c3c26;color:#e74c3c}.sync-badge--synced{background:#2ecc7126;color:#2ecc71}