*{margin:0;padding:0;box-sizing:border-box}body{background-color:#000;color:#fff;font-family:IBM Plex Mono,monospace;min-height:100vh;display:flex;justify-content:center;padding:20px}#app{display:flex;gap:20px;width:100%;max-width:1200px}.sidebar{width:140px;flex-shrink:0;padding-top:20px}.algo-list{display:flex;flex-direction:column;gap:2px}.algo-btn{background:transparent;color:#666;border:none;padding:8px 0;font-family:IBM Plex Mono,monospace;font-size:.85rem;cursor:pointer;text-align:left;transition:color .2s}.algo-btn:hover,.algo-btn.active{color:#fff}.main-content{flex:1;display:flex;flex-direction:column;gap:20px}#visualizer{width:100%;height:250px;border:1px solid #333;border-radius:8px;display:block}.playback-bar{display:flex;align-items:center;gap:12px;padding:12px 16px;border:1px solid #333;border-radius:8px}.playback-bar button{background:transparent;color:#fff;border:1px solid #666;padding:8px 16px;font-family:IBM Plex Mono,monospace;font-size:.8rem;cursor:pointer;border-radius:4px;transition:all .2s}.playback-bar button:hover{border-color:#fff;box-shadow:0 0 8px #ffffff4d}#epoch-slider{flex:1;-webkit-appearance:none;appearance:none;height:4px;background:#333;border-radius:2px;cursor:pointer}#epoch-slider::-webkit-slider-thumb{-webkit-appearance:none;width:12px;height:12px;background:#fff;border-radius:50%;cursor:pointer}#epoch-slider::-moz-range-thumb{width:12px;height:12px;background:#fff;border:none;border-radius:50%;cursor:pointer}#epoch-value{font-size:.75rem;color:#888;min-width:80px}.speed-label{display:flex;align-items:center;gap:8px;font-size:.75rem;color:#888;margin-left:auto}#speed-slider{width:80px;-webkit-appearance:none;appearance:none;height:4px;background:#333;border-radius:2px;cursor:pointer}#speed-slider::-webkit-slider-thumb{-webkit-appearance:none;width:10px;height:10px;background:#fff;border-radius:50%;cursor:pointer}#speed-slider::-moz-range-thumb{width:10px;height:10px;background:#fff;border:none;border-radius:50%;cursor:pointer}#pseudocode-container{border:1px solid #333;border-radius:8px;padding:15px;flex:1;min-height:200px}#pseudocode{font-family:IBM Plex Mono,monospace;font-size:.8rem;line-height:1.6;white-space:pre-wrap}.pseudocode-line{padding:2px 8px;display:block}.pseudocode-line.active{background:#333;color:#fff}.pseudocode-line span.line-number{display:inline-block;width:24px;color:#555;-webkit-user-select:none;user-select:none}@media(max-width:700px){#app{flex-direction:column}.sidebar{width:100%;padding-top:0}.algo-list{flex-direction:row;flex-wrap:wrap}.playback-bar{flex-wrap:wrap}#epoch-slider{order:1;width:100%}}