.upload-area {
            border: 2px dashed var(--border-color, #ced4da);
            border-radius: 12px;
            background-color: rgba(70, 130, 180, 0.03);
            transition: all 0.2s ease;
            cursor: pointer;
            padding: 2rem 1rem;
            text-align: center;
        }
        .upload-area:hover {
            border-color: var(--primary-color, #0d6efd);
            background-color: rgba(70, 130, 180, 0.05);
        }
        .upload-area.drag-over {
            border-color: var(--primary-color);
            background-color: rgba(13, 110, 253, 0.08);
        }
        .image-preview-container {
            text-align: center;
            margin-bottom: 1.5rem;
        }
        .preview-img {
            max-width: 100%;
            max-height: 300px;
            border-radius: 12px;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
            border: 1px solid #e2e8f0;
        }
        .metadata-table {
            width: 100%;
            font-size: 0.9rem;
            border-collapse: separate;
            border-spacing: 0;
            background: white;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 1px 3px rgba(0,0,0,0.05);
        }
        .metadata-table th {
            background-color: #f1f5f9;
            font-weight: 600;
            width: 35%;
            padding: 0.75rem 1rem;
            border-bottom: 1px solid #e2e8f0;
        }
        .metadata-table td {
            padding: 0.75rem 1rem;
            border-bottom: 1px solid #e2e8f0;
            word-break: break-word;
            background-color: white;
        }
        .metadata-table tr:last-child td, .metadata-table tr:last-child th {
            border-bottom: none;
        }
        .badge-metadata {
            background-color: #e9ecef;
            color: #2c3e50;
            font-weight: normal;
            padding: 0.3rem 0.7rem;
            border-radius: 30px;
            font-size: 0.75rem;
        }
        .copy-metadata-btn {
            transition: 0.1s;
        }
        .section-header-icon {
            margin-right: 8px;
            color: var(--primary-color);
        }
        .case-study-card {
            background: #f8fafc;
            border-radius: 16px;
            padding: 1.5rem;
            margin-top: 1.5rem;
            border-left: 4px solid #0d6efd;
        }
        .expert-badge {
            background: #e9ecef;
            padding: 0.5rem 1rem;
            border-radius: 40px;
            font-size: 0.8rem;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .sample-test-btn {
            background: #f1f3f5;
            border: 1px solid #dee2e6;
        }