.upload-zone.dragover{border-color:#764ba2;background:linear-gradient(135deg,rgba(102,126,234,.15) 0%,rgba(118,75,162,.15) 100%);transform:scale(1.02)}.file-item{background:#fff;border-radius:12px;padding:20px;margin-bottom:15px;box-shadow:0 2px 10px rgba(0,0,0,.05);transition:all .3s ease}.file-item:hover{box-shadow:0 5px 20px rgba(0,0,0,.1)}.file-header{display:flex;align-items:center;gap:15px;margin-bottom:15px}.file-preview{width:60px;height:60px;border-radius:8px;object-fit:cover;border:2px solid #f0f0f0}.ai-suggestion{background:linear-gradient(135deg,rgba(102,126,234,.1) 0%,rgba(118,75,162,.1) 100%);padding:10px 15px;border-radius:8px;margin-bottom:15px;font-size:.9em;color:#667eea;display:flex;align-items:center;gap:10px}.controls{display:flex;gap:10px;flex-wrap:wrap}select{flex:1;min-width:150px;padding:12px;border:2px solid #e0e0e0;border-radius:8px;font-size:1em;cursor:pointer;transition:all .3s ease;background:#fff}select:focus{outline:none;border-color:#667eea}.btn-primary{background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);color:white}.btn-primary:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 5px 15px rgba(102,126,234,.4)}.btn-secondary{background:#fff;color:#667eea;border:2px solid #667eea}.btn-secondary:hover:not(:disabled){background:#667eea;color:white}.progress-bar{width:100%;height:4px;background:#e0e0e0;border-radius:2px;margin-top:10px;overflow:hidden}.progress-fill{height:100%;background:linear-gradient(90deg,#667eea 0%,#764ba2 100%);width:0%;transition:width .3s ease}@media (max-width:768px){.controls{flex-direction:column}}