*{box-sizing:border-box;margin:0;padding:0}[hidden]{display:none!important}:root{--bg-primary: #0f0f1a;--bg-secondary: #1a1a2e;--bg-tertiary: #252542;--accent: #7c3aed;--accent-hover: #8b5cf6;--accent-glow: rgba(124, 58, 237, .3);--text-primary: #ffffff;--text-secondary: #a0a0b0;--border: #3a3a5c;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;line-height:1.5;color:var(--text-primary);background-color:var(--bg-primary)}body{min-height:100vh;display:flex;flex-direction:column}#app{flex:1;display:flex;flex-direction:column;max-width:800px;margin:0 auto;padding:2rem;width:100%;padding-bottom:120px}header{text-align:center;margin-bottom:3rem}header h1{font-size:2.5rem;font-weight:700;background:linear-gradient(135deg,var(--accent) 0%,#ec4899 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:.5rem}header .subtitle{color:var(--text-secondary);font-size:1rem}header .subtitle a{color:var(--accent);text-decoration:none;border-bottom:1px solid transparent;transition:border-color .2s}header .subtitle a:hover{border-bottom-color:var(--accent)}.upload-section{flex:1;display:flex;align-items:center;justify-content:center}.upload-label{display:flex;flex-direction:column;align-items:center;justify-content:center;width:100%;padding:4rem 2rem;border:2px dashed var(--border);border-radius:16px;background:var(--bg-secondary);cursor:pointer;transition:all .3s ease}.upload-label:hover,.upload-label.dragover{border-color:var(--accent);background:var(--bg-tertiary);box-shadow:0 0 30px var(--accent-glow)}.upload-icon{color:var(--accent);margin-bottom:1rem}.upload-text{font-size:1.1rem;margin-bottom:.5rem}.upload-hint{color:var(--text-secondary);font-size:.875rem}.editor-section{display:flex;flex-direction:column;gap:2rem}.speed-control{background:var(--bg-secondary);padding:2rem;border-radius:16px}.speed-labels{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem}.speed-label-left,.speed-label-right{color:var(--text-secondary);font-size:.875rem}.speed-label-center{font-size:1.5rem;font-weight:600;color:var(--accent)}input[type=range]{width:100%;height:8px;-webkit-appearance:none;appearance:none;background:var(--bg-tertiary);border-radius:4px;outline:none;cursor:pointer}input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:20px;height:20px;background:var(--accent);border-radius:50%;cursor:pointer;transition:transform .2s,box-shadow 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var(--accent-glow)}.btn-primary:disabled{opacity:.5;cursor:not-allowed}.btn-secondary{background:var(--bg-tertiary);color:var(--text-primary);border:1px solid var(--border)}.btn-secondary:hover{background:var(--border)}.export-progress{display:flex;flex-direction:column;align-items:center;gap:.5rem}.export-progress-bar{width:100%;height:4px;background:var(--bg-tertiary);border-radius:2px;overflow:hidden}.export-progress-fill{height:100%;width:0%;background:linear-gradient(90deg,var(--accent),#ec4899);transition:width .3s ease}#export-status{color:var(--text-secondary);font-size:.875rem}footer{text-align:center;padding:1.5rem;color:var(--text-secondary);font-size:.75rem}footer a{color:var(--text-secondary);text-decoration:none;border-bottom:1px solid var(--border);transition:color .2s,border-color .2s}footer a:hover{color:var(--accent);border-color:var(--accent)}.player-bar{position:fixed;bottom:0;left:0;right:0;background:var(--bg-secondary);border-top:1px solid var(--border);padding:1rem;z-index:100}.player-bar-inner{max-width:1200px;margin:0 auto;display:flex;align-items:center;gap:1.5rem}.player-track-info{display:flex;align-items:center;gap:.75rem;min-width:200px}.track-artwork{width:48px;height:48px;background:var(--bg-tertiary);border-radius:8px;display:flex;align-items:center;justify-content:center;color:var(--accent)}.track-details{display:flex;flex-direction:column}.track-name{font-weight:500;font-size:.9rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:150px}.track-artist{font-size:.75rem;color:var(--text-secondary)}.player-controls{display:flex;gap:.5rem}.control-btn{width:40px;height:40px;border-radius:50%;border:none;background:var(--bg-tertiary);color:var(--text-primary);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .2s ease}.control-btn:hover{background:var(--accent);transform:scale(1.05)}.player-timeline{flex:1;display:flex;align-items:center;gap:.75rem}.time-current,.time-duration{font-size:.75rem;color:var(--text-secondary);min-width:40px;font-variant-numeric:tabular-nums}.time-current{text-align:right}.seek-bar{flex:1;height:6px;background:var(--bg-tertiary);border-radius:3px;position:relative;cursor:pointer}.seek-bar-fill{height:100%;width:0%;background:var(--accent);border-radius:3px;position:absolute;top:0;left:0}.seek-bar-handle{width:14px;height:14px;background:var(--text-primary);border-radius:50%;position:absolute;top:50%;left:0%;transform:translate(-50%,-50%);box-shadow:0 2px 6px #0000004d;transition:transform .1s}.seek-bar:hover .seek-bar-handle{transform:translate(-50%,-50%) scale(1.2)}.btn-load-new{width:40px;height:40px;border-radius:8px;border:1px solid var(--border);background:transparent;color:var(--text-secondary);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .2s ease}.btn-load-new:hover{border-color:var(--accent);color:var(--accent)}@media(max-width:768px){#app{padding:1rem;padding-bottom:140px}header h1{font-size:1.75rem}.extras{grid-template-columns:1fr}.player-bar-inner{flex-wrap:wrap;gap:1rem}.player-track-info{order:1;flex:1}.player-controls{order:2}.btn-load-new{order:3}.player-timeline{order:4;width:100%}}