/* SEO Content Styles */
        .seo-content {
            max-width: 800px;
            margin: 3rem auto;
            line-height: 1.7;
            color: #4a5568;
        }
        
        .seo-content h2 {
            color: #2d3748;
            margin-top: 2.5rem;
            margin-bottom: 1rem;
            font-size: 1.5rem;
        }
        
        .seo-content h3 {
            color: #2d3748;
            margin-top: 1.5rem;
            margin-bottom: 0.75rem;
            font-size: 1.25rem;
        }
        
        .seo-content p {
            margin-bottom: 1rem;
        }
        
        .seo-content ul, .seo-content ol {
            margin-bottom: 1.5rem;
            padding-left: 1.5rem;
        }
        
        .seo-content li {
            margin-bottom: 0.5rem;
        }
        
        .faq-item {
            margin-bottom: 1rem;
            border: 1px solid #e2e8f0;
            border-radius: 8px;
            overflow: hidden;
        }
        
        .faq-question {
            padding: 1rem;
            background: #edf2f7;
            font-weight: 600;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .faq-answer {
            padding: 1rem;
            background: white;
            display: none;
        }
        
        .info-box {
            background: #f0fff4;
            border-left: 4px solid #38a169;
            padding: 1.5rem;
            margin: 1.5rem 0;
            border-radius: 0 8px 8px 0;
        }
        
        .warning-box {
            background: #fffaf0;
            border-left: 4px solid #ed8936;
            padding: 1.5rem;
            margin: 1.5rem 0;
            border-radius: 0 8px 8px 0;
        }
        
        .professional-box {
            background: #f0f9ff;
            border-left: 4px solid #0ea5e9;
            padding: 1.5rem;
            margin: 1.5rem 0;
            border-radius: 0 8px 8px 0;
        }
        
        .archival-box {
            background: #faf5ff;
            border-left: 4px solid #8b5cf6;
            padding: 1.5rem;
            margin: 1.5rem 0;
            border-radius: 0 8px 8px 0;
        }
        
        /* Converter specific styles */
        .compatibility-badge {
            display: inline-block;
            padding: 0.25rem 0.75rem;
            background: #22c55e;
            color: white;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
            margin-left: 0.5rem;
        }
        
        .compatibility-badge.warning {
            background: #f59e0b;
        }
        @keyframes spin {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }

        .modern-button {
            position: relative;
            overflow: hidden;
        }

        .modern-button::before {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            width: 0;
            height: 0;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.3);
            transform: translate(-50%, -50%);
            transition: width 0.6s, height 0.6s;
        }

        .modern-button:hover::before {
            width: 300px;
            height: 300px;
        }

        .upload-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(102, 126, 234, 0.5);
        }

        .convert-btn:hover {
            transform: translateY(-3px) scale(1.02);
            box-shadow: 0 8px 24px rgba(66, 153, 225, 0.5);
        }

        .download-btn:hover {
            transform: translateY(-2px);
        }

        #downloadZipBtn:hover {
            box-shadow: 0 6px 20px rgba(34, 197, 94, 0.5);
        }

        .modern-button:active {
            transform: translateY(0);
        }

        #imagePreviewGrid::-webkit-scrollbar {
            width: 8px;
        }

        #imagePreviewGrid::-webkit-scrollbar-track {
            background: #f1f5f9;
            border-radius: 4px;
        }

        #imagePreviewGrid::-webkit-scrollbar-thumb {
            background: #cbd5e0;
            border-radius: 4px;
        }

        #imagePreviewGrid::-webkit-scrollbar-thumb:hover {
            background: #a0aec0;
        }

        #clearBtn:hover {
            background: #fee2e2;
            border-color: #fca5a5;
        }

        .page-btn {
            transition: all 0.2s ease;
        }

        .page-btn:hover {
            transform: translateY(-1px);
        }

        [data-format] {
            transition: all 0.2s ease;
        }

        [data-format]:hover {
            transform: translateY(-2px);
            box-shadow: 0 4px 8px rgba(0,0,0,0.1);
        }
        
        /* FAQ interactivity */
        .faq-question svg {
            transition: transform 0.3s ease;
        }
        
        .faq-item.active .faq-question svg {
            transform: rotate(180deg);
        }
        
        .faq-question {
            cursor: pointer;
        }
        
        .faq-answer {
            display: none;
        }
        
        .faq-item.active .faq-answer {
            display: block;
        }