.audio-converter{max-width:800px;margin:0 auto;padding:2rem;font-family:Segoe UI,sans-serif;color:#333}.audio-converter h1{text-align:center;margin-bottom:2rem;color:#4a4a4a;font-size:2.2rem}.audio-converter .error{background-color:#ffebee;color:#c62828;padding:1rem;border-radius:4px;margin-bottom:1.5rem;display:flex;justify-content:space-between;align-items:center}.audio-converter .upload-area{position:relative;margin-bottom:2rem}.audio-converter .upload-area input[type=file]{position:absolute;width:100%;height:100%;opacity:0;cursor:pointer;z-index:2}.audio-converter .upload-area .upload-box{border:2px dashed #9e9e9e;border-radius:8px;padding:3rem 2rem;text-align:center;transition:all .3s ease;background-color:#f5f5f5}.audio-converter .upload-area .upload-box.processing{border-color:#2196f3}.audio-converter .upload-area .upload-box:hover:not(.processing){border-color:#2196f3;background-color:#e3f2fd}.audio-converter .upload-area .upload-box svg{width:48px;height:48px;margin-bottom:1rem;color:#757575}.audio-converter .upload-area .upload-box p{margin:.5rem 0;font-size:1.2rem;color:#424242}.audio-converter .upload-area .upload-box small{color:#757575;font-size:.9rem}.audio-converter .upload-area .upload-box .spin{animation:spin 1s linear infinite;margin:0 auto;color:#2196f3}.audio-converter .player-container{background-color:#fff;border-radius:8px;box-shadow:0 2px 10px rgba(0,0,0,.1);padding:1.5rem;margin-top:1.5rem}.audio-converter .player-container .controls{display:flex;align-items:center;gap:1rem;margin-bottom:1.5rem}.audio-converter .player-container .controls button{background:none;border:none;cursor:pointer;color:#424242;padding:.5rem;border-radius:50%;display:flex;align-items:center;justify-content:center;transition:all .2s}.audio-converter .player-container .controls button:hover{background-color:#e0e0e0;color:#2196f3}.audio-converter .player-container .controls button:disabled{opacity:.5;cursor:not-allowed}.audio-converter .player-container .controls button svg{width:24px;height:24px}.audio-converter .player-container .controls .slider-container{flex:1;display:flex;align-items:center;gap:.5rem}.audio-converter .player-container .controls .slider-container input[type=range]{flex:1;height:4px;-webkit-appearance:none;background:#e0e0e0;border-radius:2px;outline:none}.audio-converter .player-container .controls .slider-container input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:16px;height:16px;background:#2196f3;border-radius:50%;cursor:pointer}.audio-converter .player-container .controls .slider-container span{font-size:.9rem;color:#616161;min-width:80px;text-align:center}.audio-converter .player-container .controls input[type=range].volume-slider{width:80px}.audio-converter .player-container .settings{display:grid;grid-template-columns:1fr 1fr;gap:1.5rem;margin-bottom:1.5rem}.audio-converter .player-container .settings label{display:flex;flex-direction:column;gap:.5rem;font-size:.9rem;color:#616161}.audio-converter .player-container .settings label input[type=range]{width:100%;height:4px;-webkit-appearance:none;background:#e0e0e0;border-radius:2px;outline:none}.audio-converter .player-container .settings label input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:16px;height:16px;background:#2196f3;border-radius:50%;cursor:pointer}.audio-converter .player-container button.download-btn{display:flex;align-items:center;justify-content:center;gap:.5rem;width:100%;padding:.75rem;background-color:#2196f3;color:#fff;border:none;border-radius:4px;font-size:1rem;cursor:pointer;transition:background-color .2s}.audio-converter .player-container button.download-btn:hover{background-color:#1976d2}.audio-converter .player-container button.download-btn:disabled{background-color:#b0bec5;cursor:not-allowed}.audio-converter .player-container button.download-btn svg{width:18px;height:18px}.audio-converter .progress-container{margin-top:1rem;display:flex;flex-direction:column;gap:.5rem}.audio-converter .progress-container .progress-label{display:flex;justify-content:space-between;font-size:.9rem;color:#616161}.audio-converter .progress-container .progress-bar{height:6px;background-color:#e0e0e0;border-radius:3px;overflow:hidden}.audio-converter .progress-container .progress-bar .progress-fill{height:100%;background-color:#2196f3;transition:width .3s ease}@keyframes spin{0%{transform:rotate(0deg)}to{transform:rotate(1turn)}}@media(max-width:768px){.audio-converter{padding:1rem}.audio-converter h1{font-size:1.8rem}.audio-converter .player-container{padding:1rem}.audio-converter .player-container .controls{flex-wrap:wrap}.audio-converter .player-container .controls .slider-container{order:1;width:100%;margin-top:.5rem}.audio-converter .player-container .settings{grid-template-columns:1fr}}@media(max-width:480px){.audio-converter .upload-box{padding:2rem 1rem!important}.audio-converter .upload-box svg{width:36px!important;height:36px!important}}