.drop-zone {
            border: 2px dashed #ccc;
            padding: 40px;
            text-align: center;
            cursor: pointer;
            margin-bottom: 8px;
            position: relative;
            background-color: #f9f9f9;
            transition: all 0.3s ease;
        }
        
        .drop-zone.dragover {
            border-color: #28a745;
            background-color: #e9f9ef;
        }
        
        .drop-zone p {
            margin: 0;
            font-size: 16px;
            color: #666;
        }
        
        .drop-zone input[type="file"] {
            display: none;
        }
        
        .preview-container {
            margin-top: 30px;
        }
        
        .webp-preview {
            background: white;
            border: 1px solid #ddd;
            border-radius: 5px;
            padding: 15px;
            margin-bottom: 20px;
            height: 280px;
            position: relative;
            transition: box-shadow 0.3s ease;
        }
        
        .webp-preview:hover {
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
        }
        
        .webp-image-container {
            width: 100%;
            height: 210px;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            overflow: hidden;
            background: #f8f9fa;
            border-radius: 4px;
            border: 1px solid #eee;
        }
        
        .webp-image {
            max-width: 100%;
            max-height: 100%;
            object-fit: contain;
            transition: transform 0.2s ease;
        }
        
        .webp-image-container:hover .webp-image {
            transform: scale(1.05);
        }
        
        .file-name {
            font-size: 13px;
            word-break: break-all;
            margin-top: 5px;
            text-align: center;
            color: #333;
            font-weight: 500;
            height: 20px;
            overflow: hidden;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
        }
        
        .file-info {
            font-size: 11px;
            color: #666;
            text-align: center;
            margin-top: 5px;
        }
        
        .controls {
            position: absolute;
            top: 10px;
            right: 10px;
            opacity: 0;
            transition: opacity 0.3s;
        }
        
        .webp-preview:hover .controls {
            opacity: 1;
        }
        
        .modal-lg {
            max-width: 95%;
        }
        
        .modal-xl {
            max-width: 98%;
        }
        
        .modal-webp-container {
            width: 100%;
            height: 75vh;
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: auto;
            background: #f8f9fa;
            border-radius: 4px;
        }
        
        .modal-webp {
            max-width: 100%;
            max-height: 100%;
            object-fit: contain;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
        }
        
        .stats {
            margin-top: 20px;
            padding: 15px;
            background: #f8f9fa;
            border-radius: 4px;
            border-left: 4px solid #28a745;
        }
        
        .file-counter {
            display: inline-block;
            padding: 3px 8px;
            background: #28a745;
            color: white;
            border-radius: 12px;
            font-size: 12px;
            margin-left: 5px;
        }
        
        .info-box {
            background: #e9f9ef;
            border: 1px solid #c3e6cb;
            border-radius: 4px;
            padding: 15px;
            margin-bottom: 20px;
        }
        
        .info-box h4 {
            color: #155724;
            margin-top: 0;
        }
        
        @media (max-width: 992px) {
            .webp-preview {
                height: 250px;
            }
            
            .webp-image-container {
                height: 170px;
            }
        }
        
        @media (max-width: 768px) {
            .webp-preview {
                height: 230px;
            }
            
            .webp-image-container {
                height: 120px;
            }
        }
        
        .zoom-controls {
            position: fixed;
            bottom: 20px;
            right: 20px;
            z-index: 1050;
        }
        
        .zoom-btn {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: #28a745;
            color: white;
            border: none;
            margin: 5px;
            font-size: 18px;
            box-shadow: 0 2px 5px rgba(0,0,0,0.2);
        }
        
        .modal-dialog.fullscreen {
            width: 100%;
            height: 100%;
            margin: 0;
            padding: 0;
        }
        
        .modal-content.fullscreen {
            height: 100vh;
            border-radius: 0;
        }