/* CSS Reset */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
        }

        :root {
            --primary-color: #2563eb;
            --primary-dark: #1d4ed8;
            --secondary-color: #64748b;
            --light-color: #f8fafc;
            --border-color: #e2e8f0;
            --text-color: #334155;
            --text-light: #64748b;
            --success-color: #10b981;
            --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
            --radius: 8px;
        }

        body {
            color: var(--text-color);
            line-height: 1.6;
            background-color: #f9fafb;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        a {
            text-decoration: none;
            color: var(--primary-color);
        }

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* Header Styles */
        header {
            background-color: white;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
            position: sticky;
            top: 0;
            z-index: 100;
        }

        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 18px 0;
        }

        .logo {
            font-size: 28px;
            font-weight: 700;
            color: var(--primary-color);
            display: flex;
            align-items: center;
        }

        .logo .tagline {
            font-size: 14px;
            font-weight: 400;
            color: var(--text-light);
            margin-left: 10px;
            padding-left: 10px;
            border-left: 1px solid var(--border-color);
        }

        nav ul {
            display: flex;
            list-style: none;
        }

        nav li {
            margin-left: 30px;
        }

        nav a {
            color: var(--text-color);
            font-weight: 500;
            padding: 8px 0;
            position: relative;
            transition: color 0.3s;
        }

        nav a:hover {
            color: var(--primary-color);
        }

        nav a.active {
            color: var(--primary-color);
        }

        nav a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background-color: var(--primary-color);
            border-radius: 3px 3px 0 0;
        }

        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            font-size: 24px;
            color: var(--text-color);
            cursor: pointer;
        }

        /* Mobile Sidebar */
        .mobile-sidebar {
            position: fixed;
            top: 0;
            left: -280px;
            width: 280px;
            height: 100vh;
            background-color: white;
            box-shadow: 2px 0 10px rgba(0, 0, 0, 0.1);
            z-index: 1000;
            transition: left 0.3s ease;
            overflow-y: auto;
        }

        .mobile-sidebar.open {
            left: 0;
        }

        .sidebar-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(0, 0, 0, 0.5);
            z-index: 999;
            opacity: 0;
            visibility: hidden;
            transition: opacity 0.3s ease, visibility 0.3s ease;
        }

        .sidebar-overlay.show {
            opacity: 1;
            visibility: visible;
        }

        .mobile-sidebar-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px;
            border-bottom: 1px solid var(--border-color);
        }

        .mobile-sidebar-logo {
            font-size: 24px;
            font-weight: 700;
            color: var(--primary-color);
        }

        .close-sidebar-btn {
            background: none;
            border: none;
            font-size: 24px;
            color: var(--text-color);
            cursor: pointer;
        }

        .mobile-sidebar nav {
            display: block;
        }

        .mobile-sidebar nav ul {
            flex-direction: column;
            padding: 20px 0;
        }

        .mobile-sidebar nav li {
            margin: 0;
        }

        .mobile-sidebar nav a {
            display: block;
            padding: 15px 20px;
            border-left: 3px solid transparent;
            transition: all 0.3s;
        }

        .mobile-sidebar nav a:hover {
            background-color: #f8fafc;
            border-left-color: var(--primary-color);
        }

        .mobile-sidebar nav a.active {
            background-color: #eff6ff;
            border-left-color: var(--primary-color);
        }

        .mobile-sidebar nav a.active::after {
            display: none;
        }

        /* Hero Section */
        .hero {
            padding: 60px 0 40px;
            text-align: center;
        }

        .hero h1 {
            font-size: 2.8rem;
            margin-bottom: 16px;
            color: #1e293b;
            line-height: 1.2;
        }

        .hero p {
            font-size: 1.2rem;
            color: var(--text-light);
            max-width: 700px;
            margin: 0 auto 40px;
        }

        /* Upload Area */
        .upload-area {
            background-color: white;
            border: 2px dashed var(--border-color);
            border-radius: var(--radius);
            padding: 50px 30px;
            text-align: center;
            margin: 0 auto 30px;
            max-width: 800px;
            transition: all 0.3s;
            cursor: pointer;
        }

        .upload-area:hover, .upload-area.dragover {
            border-color: var(--primary-color);
            background-color: #f0f7ff;
        }

        .upload-icon {
            font-size: 48px;
            color: var(--primary-color);
            margin-bottom: 20px;
        }

        .upload-text h3 {
            font-size: 1.5rem;
            margin-bottom: 10px;
        }

        .upload-text p {
            color: var(--text-light);
            margin-bottom: 20px;
        }

        .upload-btn {
            background-color: var(--primary-color);
            color: white;
            border: none;
            padding: 12px 28px;
            font-size: 1rem;
            font-weight: 600;
            border-radius: var(--radius);
            cursor: pointer;
            transition: background-color 0.3s;
            display: inline-flex;
            align-items: center;
        }

        .upload-btn:hover {
            background-color: var(--primary-dark);
        }

        .upload-btn i {
            margin-right: 8px;
        }

        /* File List */
        .file-list-container {
            max-width: 800px;
            margin: 0 auto 40px;
            display: none;
        }

        .file-list-container.show {
            display: block;
        }

        .file-list-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 20px;
        }

        .file-list-header h3 {
            font-size: 1.3rem;
        }

        .clear-all-btn {
            background: none;
            border: none;
            color: #ef4444;
            font-weight: 500;
            cursor: pointer;
            padding: 5px 10px;
            border-radius: 4px;
        }

        .clear-all-btn:hover {
            background-color: #fee2e2;
        }

        .file-list {
            background-color: white;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            overflow: hidden;
        }

        .file-item {
            display: flex;
            align-items: center;
            padding: 18px 20px;
            border-bottom: 1px solid var(--border-color);
            transition: background-color 0.2s;
        }

        .file-item:hover {
            background-color: #f8fafc;
        }

        .file-item:last-child {
            border-bottom: none;
        }

        .file-icon {
            font-size: 24px;
            color: #ef4444;
            margin-right: 15px;
        }

        .file-info {
            flex: 1;
        }

        .file-name {
            font-weight: 500;
            margin-bottom: 4px;
            word-break: break-all;
        }

        .file-size {
            font-size: 0.9rem;
            color: var(--text-light);
        }

        .file-actions {
            display: flex;
            align-items: center;
        }

        .file-action-btn {
            background: none;
            border: none;
            color: var(--text-light);
            font-size: 18px;
            cursor: pointer;
            margin-left: 15px;
            padding: 5px;
            border-radius: 4px;
        }

        .file-action-btn:hover {
            color: var(--primary-color);
            background-color: #f1f5f9;
        }

        .file-move-btn {
            cursor: move;
        }

        /* Merge Button */
        .merge-section {
            text-align: center;
            margin-bottom: 60px;
        }

        .merge-btn {
            background-color: var(--success-color);
            color: white;
            border: none;
            padding: 16px 40px;
            font-size: 1.2rem;
            font-weight: 600;
            border-radius: var(--radius);
            cursor: pointer;
            transition: background-color 0.3s;
            display: inline-flex;
            align-items: center;
            box-shadow: var(--shadow);
        }

        .merge-btn:hover:not(:disabled) {
            background-color: #0da271;
        }

        .merge-btn:disabled {
            background-color: #a7f3d0;
            cursor: not-allowed;
        }

        .merge-btn i {
            margin-right: 10px;
        }

        /* Trust Signals */
        .trust-signals {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 30px;
            margin: 40px 0 60px;
        }

        .trust-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
            max-width: 150px;
        }

        .trust-icon {
            font-size: 32px;
            color: var(--primary-color);
            margin-bottom: 12px;
        }

        .trust-text {
            font-weight: 500;
        }

        /* How It Works */
        .how-it-works {
            background-color: white;
            padding: 60px 0;
            margin: 40px 0;
        }

        .section-title {
            text-align: center;
            font-size: 2rem;
            margin-bottom: 50px;
            color: #1e293b;
        }

        .steps {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 30px;
            max-width: 1000px;
            margin: 0 auto;
        }

        .step {
            flex: 1;
            min-width: 200px;
            max-width: 230px;
            text-align: center;
            padding: 25px 20px;
            border-radius: var(--radius);
            background-color: #f8fafc;
        }

        .step-number {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 50px;
            height: 50px;
            background-color: var(--primary-color);
            color: white;
            font-weight: 700;
            font-size: 1.3rem;
            border-radius: 50%;
            margin: 0 auto 20px;
        }

        .step-title {
            font-size: 1.2rem;
            margin-bottom: 12px;
        }

        /* SEO Content */
        .seo-content {
            padding: 60px 0;
            max-width: 800px;
            margin: 0 auto;
        }

        .seo-content h2 {
            font-size: 1.8rem;
            margin-bottom: 25px;
            color: #1e293b;
        }

        .seo-content p {
            margin-bottom: 20px;
            color: var(--text-color);
            line-height: 1.7;
        }

        /* FAQ Section */
        .faq {
            padding: 60px 0;
            background-color: #f8fafc;
        }

        .faq-container {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background-color: white;
            border-radius: var(--radius);
            margin-bottom: 15px;
            box-shadow: var(--shadow);
            overflow: hidden;
        }

        .faq-question {
            padding: 22px 25px;
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: #1e293b;
        }

        .faq-question:hover {
            background-color: #f8fafc;
        }

        .faq-answer {
            padding: 0 25px;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s, padding 0.3s;
        }

        .faq-answer.show {
            padding: 0 25px 25px;
            max-height: 500px;
        }

        .faq-toggle {
            color: var(--primary-color);
            font-size: 20px;
            transition: transform 0.3s;
        }

        .faq-toggle.rotated {
            transform: rotate(45deg);
        }

        /* Footer */
        footer {
            background-color: #1e293b;
            color: #cbd5e1;
            padding: 50px 0 30px;
            margin-top: auto;
        }

        .footer-content {
            display: flex;
            flex-direction: column;
            align-items: center;
        }

        .footer-logo {
            font-size: 28px;
            font-weight: 700;
            color: white;
            margin-bottom: 20px;
        }

        .footer-links {
            display: flex;
            margin-bottom: 30px;
        }

        .footer-links a {
            color: #cbd5e1;
            margin: 0 20px;
            transition: color 0.3s;
        }

        .footer-links a:hover {
            color: white;
        }

        .copyright {
            font-size: 0.9rem;
            color: #94a3b8;
            text-align: center;
        }

        /* Progress & Download */
        .progress-container {
            max-width: 800px;
            margin: 30px auto;
            text-align: center;
            display: none;
        }

        .progress-container.show {
            display: block;
        }

        .progress-bar {
            height: 10px;
            background-color: #e2e8f0;
            border-radius: 5px;
            overflow: hidden;
            margin-bottom: 20px;
        }

        .progress-fill {
            height: 100%;
            background-color: var(--success-color);
            width: 0%;
            transition: width 0.3s;
        }

        .download-section {
            text-align: center;
            margin: 30px 0 60px;
            display: none;
        }

        .download-section.show {
            display: block;
        }

        .download-btn {
            background-color: var(--primary-color);
            color: white;
            border: none;
            padding: 16px 40px;
            font-size: 1.2rem;
            font-weight: 600;
            border-radius: var(--radius);
            cursor: pointer;
            transition: background-color 0.3s;
            display: inline-flex;
            align-items: center;
            box-shadow: var(--shadow);
        }

        .download-btn:hover {
            background-color: var(--primary-dark);
        }

        .download-btn i {
            margin-right: 10px;
        }

        /* Responsive */
        @media (max-width: 768px) {
            .header-container {
                padding: 15px 0;
            }

            .logo .tagline {
                display: none;
            }

            nav {
                display: none;
            }

            .mobile-menu-btn {
                display: block;
            }

            .hero h1 {
                font-size: 2rem;
            }

            .hero p {
                font-size: 1rem;
            }

            .trust-signals {
                gap: 20px;
            }

            .trust-item {
                max-width: 130px;
            }

            .step {
                min-width: 100%;
            }

            .footer-links {
                flex-direction: column;
                align-items: center;
            }

            .footer-links a {
                margin: 8px 0;
            }

            .file-actions {
                flex-direction: column;
            }

            .file-action-btn {
                margin-left: 0;
                margin-top: 5px;
            }
        }

        /* Utility Classes */
        .hidden {
            display: none !important;
        }
        
        
        
        
        
        
        
           /* Quick Articles Section */
.quick-articles {
    background-color: #ffffff;
    padding: 2rem 0;
    margin: 2rem 0;
    border-top: 1px solid #e9ecef;
    border-bottom: 1px solid #e9ecef;
}

.quick-articles-title {
    font-size: 1.1rem;
    color: #2c3e50;
    margin-bottom: 1rem;
    font-weight: 600;
    text-align: center;
}

.article-tags-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.8rem;
    max-width: 800px;
    margin: 0 auto;
}

.article-tag {
    display: inline-block;
    padding: 0.5rem 1.2rem;
    background-color: white;
    color: #3498db;
    text-decoration: none;
    border-radius: 25px;
    font-size: 0.9rem;
    font-weight: 500;
    border: 1px solid #e0e0e0;
    transition: all 0.3s ease;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}

.article-tag:hover {
    background-color: #3dabf5;
    color: rgb(202, 189, 189);
    border-color: #3498db;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(52, 152, 219, 0.2);
}

.article-tag:active {
    transform: translateY(0);
}

/* Responsive Design */
@media (max-width: 768px) {
    .quick-articles {
        padding: 1.5rem 1rem;
    }
    
    .article-tags-container {
        gap: 0.6rem;
        padding: 0 0.5rem;
    }
    
    .article-tag {
        padding: 0.4rem 1rem;
        font-size: 0.85rem;
    }
}

@media (max-width: 480px) {
    .quick-articles-title {
        font-size: 1rem;
    }
    
    .article-tags-container {
        gap: 0.5rem;
    }
    
    .article-tag {
        padding: 0.35rem 0.8rem;
        font-size: 0.8rem;
    }
}