.custom-audio-container{padding:30px;max-width:1200px;margin:0 auto;background-color:#f9f9f9;min-height:calc(100vh - 60px)}.custom-audio-container h1{font-size:2.2rem;color:#1d1d1f;margin-bottom:10px;text-align:center}.custom-audio-container .page-description{font-size:1rem;color:#666;line-height:1.6;text-align:center;margin-bottom:40px}.audio-mixer-workspace{background-color:#fff;border-radius:12px;box-shadow:0 4px 20px rgba(0,0,0,.1);padding:30px;margin-bottom:30px}.audio-inputs-section{display:grid;grid-template-columns:1fr 1fr;gap:30px;margin-bottom:30px}.audio-input-card{background-color:#f8f9fa;border:2px dashed #dee2e6;border-radius:12px;padding:25px;text-align:center;transition:all .3s ease;position:relative;min-height:280px;display:flex;flex-direction:column}.audio-input-card.has-audio{border-color:#28a745;background-color:#f8fff9;border-style:solid}.audio-input-card.drag-over{border-color:#007bff;background-color:#f0f8ff;transform:scale(1.02)}.audio-card-title{font-size:1.3rem;font-weight:600;color:#333;margin-bottom:20px;display:flex;align-items:center;justify-content:center;gap:10px}.audio-card-title i{color:#007bff}.website-audio-selection{margin-bottom:20px}.audio-select-row{display:flex;gap:10px;margin-bottom:15px;justify-content:center}.audio-select{padding:8px 12px;border:1px solid #dee2e6;border-radius:6px;background-color:#fff;font-size:.9rem;color:#333;cursor:pointer;transition:border-color .2s;min-width:120px}.audio-select:focus{outline:0;border-color:#007bff;box-shadow:0 0 0 2px rgba(0,123,255,.25)}.audio-select:disabled{background-color:#f8f9fa;color:#6c757d;cursor:not-allowed}.audio-separator{display:flex;align-items:center;margin:20px 0;color:#6c757d;font-size:.9rem}.audio-separator::after,.audio-separator::before{content:'';flex:1;height:1px;background-color:#dee2e6}.audio-separator span{padding:0 15px;background-color:#f8f9fa}.file-upload-area{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;cursor:pointer;transition:all .3s ease;border:2px dashed #dee2e6;border-radius:8px;padding:20px;margin-top:10px}.file-upload-area:hover{border-color:#007bff;background-color:rgba(0,123,255,.05)}.file-upload-area.drag-over{border-color:#007bff;background-color:rgba(0,123,255,.1)}.upload-icon{font-size:2.5rem;color:#6c757d;margin-bottom:15px}.upload-text{font-size:1rem;color:#6c757d;margin-bottom:10px;font-weight:500}.upload-hint{font-size:.85rem;color:#adb5bd}.file-input{display:none}.audio-info{display:none;background-color:#fff;border-radius:8px;padding:15px;margin-top:15px;border:1px solid #dee2e6}.audio-info.show{display:block}.audio-filename{font-weight:600;color:#333;margin-bottom:8px;word-break:break-all}.audio-duration{font-size:.9rem;color:#6c757d;margin-bottom:15px}.audio-volume-control{margin-bottom:15px;padding:10px;background-color:#f8f9fa;border-radius:6px;border:1px solid #e9ecef}.volume-control-label{font-size:.85rem;font-weight:500;color:#495057;margin-bottom:8px;display:block}.volume-control-wrapper{display:flex;align-items:center;gap:10px}.volume-control-wrapper .volume-slider{flex:1}.volume-control-wrapper .volume-value{min-width:40px;text-align:center;font-size:.8rem;color:#6c757d;font-weight:500}.audio-preview-controls{display:flex;gap:10px;align-items:center}.preview-btn{padding:6px 12px;background-color:#007bff;color:#fff;border:none;border-radius:4px;cursor:pointer;font-size:.85rem;transition:background-color .2s}.preview-btn:hover{background-color:#0056b3}.remove-audio-btn{padding:6px 12px;background-color:#dc3545;color:#fff;border:none;border-radius:4px;cursor:pointer;font-size:.85rem;transition:background-color .2s}.remove-audio-btn:hover{background-color:#c82333}.audio-controls-section{background-color:#f8f9fa;border-radius:8px;padding:25px;margin-bottom:30px}.controls-title{font-size:1.2rem;font-weight:600;color:#333;margin-bottom:20px;text-align:center}.controls-grid{display:grid;grid-template-columns:1fr 1fr;gap:25px;align-items:end;max-width:600px;margin:0 auto}.control-group{display:flex;flex-direction:column;gap:8px}.control-label{font-size:.9rem;font-weight:500;color:#495057;margin-bottom:5px}.control-input{padding:8px 12px;border:1px solid #dee2e6;border-radius:6px;font-size:.9rem;transition:border-color .2s}.control-input:focus{outline:0;border-color:#007bff;box-shadow:0 0 0 2px rgba(0,123,255,.25)}.volume-slider{-webkit-appearance:none;appearance:none;width:100%;height:6px;border-radius:3px;background:#dee2e6;outline:0;transition:background .2s}.volume-slider::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:20px;height:20px;border-radius:50%;background:#007bff;cursor:pointer;transition:background .2s}.volume-slider::-webkit-slider-thumb:hover{background:#0056b3}.volume-slider::-moz-range-thumb{width:20px;height:20px;border-radius:50%;background:#007bff;cursor:pointer;border:none}.volume-value{font-size:.85rem;color:#6c757d;text-align:center;margin-top:5px}.action-buttons-section{display:flex;justify-content:center;gap:20px;margin-bottom:30px}.mixing-progress{background-color:#f8f9fa;border:2px solid #007bff;border-radius:12px;padding:25px;margin-bottom:30px;text-align:center;box-shadow:0 4px 20px rgba(0,123,255,.1);animation:fadeIn .3s ease-in-out}.progress-container{display:flex;align-items:center;justify-content:center;gap:20px;margin-bottom:20px}.progress-icon{font-size:2rem;color:#007bff}.progress-text{text-align:left}.progress-title{font-size:1.2rem;font-weight:600;color:#333;margin-bottom:5px}.progress-description{font-size:.9rem;color:#6c757d}.progress-bar{width:100%;height:8px;background-color:#e9ecef;border-radius:4px;overflow:hidden;position:relative}.progress-fill{height:100%;background:linear-gradient(90deg,#007bff,#0056b3);border-radius:4px;width:0%;transition:width .3s ease;position:relative}.progress-fill::after{content:'';position:absolute;top:0;left:0;right:0;bottom:0;background:linear-gradient(90deg,transparent,rgba(255,255,255,.3),transparent);animation:shimmer 1.5s infinite}@keyframes fadeIn{from{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}@keyframes shimmer{0%{transform:translateX(-100%)}100%{transform:translateX(100%)}}.action-btn{padding:12px 30px;border:none;border-radius:8px;font-size:1rem;font-weight:500;cursor:pointer;transition:all .3s ease;display:flex;align-items:center;gap:8px;min-width:120px;justify-content:center}.action-btn:disabled{opacity:.6;cursor:not-allowed;transform:none}.merge-btn{background-color:#28a745;color:#fff}.merge-btn:hover:not(:disabled){background-color:#218838;transform:translateY(-2px);box-shadow:0 4px 12px rgba(40,167,69,.3)}.preview-mix-btn{background-color:#007bff;color:#fff}.preview-mix-btn:hover:not(:disabled){background-color:#0056b3;transform:translateY(-2px);box-shadow:0 4px 12px rgba(0,123,255,.3)}.download-mix-btn{background-color:#6f42c1;color:#fff}.download-mix-btn:hover:not(:disabled){background-color:#5a32a3;transform:translateY(-2px);box-shadow:0 4px 12px rgba(111,66,193,.3)}.result-section{background-color:#fff;border-radius:12px;box-shadow:0 4px 20px rgba(0,0,0,.1);padding:25px;display:none}.result-section.show{display:block}.result-title{font-size:1.3rem;font-weight:600;color:#333;margin-bottom:20px;text-align:center}.result-audio-player{width:100%;margin-bottom:20px}.result-info{background-color:#f8f9fa;border-radius:8px;padding:15px;font-size:.9rem;color:#6c757d}@media (max-width:768px){.custom-audio-container{padding:20px}.audio-inputs-section{grid-template-columns:1fr;gap:20px}.controls-grid{grid-template-columns:1fr;gap:20px}.action-buttons-section{flex-direction:column;align-items:center}.action-btn{width:100%;max-width:250px}.audio-select-row{flex-direction:column;align-items:center}.audio-select{width:100%;max-width:200px}.progress-container{flex-direction:column;gap:15px;text-align:center}.progress-text{text-align:center}.progress-icon{font-size:1.5rem}.progress-title{font-size:1.1rem}.mixing-progress{padding:20px}}