/* Base Styles */
        :root {
            --primary-blue: #2563eb;
            --dark-blue: #1e3a8a;
            --light-gray: #f8fafc;
            --accent-gray: #64748b;
            --text-dark: #1e293b;
            --border-radius: 12px;
            --box-shadow: 0 4px 20px rgba(0,0,0,0.08);
        }
        
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        
        body {
            font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
            line-height: 1.6;
            color: var(--text-dark);
            background: var(--light-gray);
            -webkit-font-smoothing: antialiased;
            padding-top: 80px; /* Space for fixed header */
        }
        
        .ast-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 15px;
        }
        
        /* Header Styles */
        .main-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: linear-gradient(135deg, var(--dark-blue) 0%, var(--primary-blue) 100%);
            padding: 12px 0;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
        }
        
        /* Breadcrumb */
        .breadcrumb {
            padding: 20px 0;
            font-size: 0.9rem;
            color: var(--accent-gray);
        }
        
        .breadcrumb a {
            color: var(--primary-blue);
            text-decoration: none;
        }
        
        .breadcrumb span:last-child {
            color: var(--text-dark);
            font-weight: 600;
        }
        
        /* Featured Image */
        .post-featured-image {
            border-radius: var(--border-radius);
            overflow: hidden;
            margin-bottom: 30px;
            box-shadow: var(--box-shadow);
        }
        
        .post-featured-image img {
            width: 100%;
            height: auto;
            display: block;
        }
        
        /* Post Header */
        .post-header {
            margin-bottom: 30px;
        }
        
        .post-title {
            font-size: 2.5rem;
            line-height: 1.2;
            margin-bottom: 15px;
            color: var(--dark-blue);
        }
        
        .post-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            font-size: 0.9rem;
            color: var(--accent-gray);
            padding-bottom: 20px;
            border-bottom: 1px solid #e2e8f0;
        }
        
        .meta-item {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        
        .post-category {
            background: rgba(37, 99, 235, 0.1);
            color: var(--primary-blue);
            padding: 4px 12px;
            border-radius: 20px;
            font-weight: 600;
            text-decoration: none;
        }
        
        /* Content Area */
        .post-content {
            background: white;
            border-radius: var(--border-radius);
            padding: 40px;
            box-shadow: var(--box-shadow);
            margin-bottom: 40px;
            position: relative;
        }
        
        .post-content::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 5px;
            height: 100%;
            background: var(--primary-blue);
            border-radius: var(--border-radius) 0 0 var(--border-radius);
        }
        
        .post-content p {
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
            line-height: 1.8;
        }
        
        .post-content h2, 
        .post-content h3, 
        .post-content h4 {
            margin: 2rem 0 1rem;
            color: var(--dark-blue);
            position: relative;
            padding-left: 20px;
        }
        
        .post-content h2::before {
            content: '';
            position: absolute;
            left: 0;
            top: 12px;
            width: 8px;
            height: 8px;
            background: var(--primary-blue);
            border-radius: 50%;
        }
        
        .post-content blockquote {
            border-left: 3px solid var(--primary-blue);
            padding: 15px 20px;
            margin: 25px 0;
            background: rgba(37, 99, 235, 0.03);
            font-style: italic;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
        }
        
        /* Tags Section */
        .post-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin: 30px 0;
        }
        
        .tag {
            background: rgba(37, 99, 235, 0.1);
            color: var(--primary-blue);
            padding: 6px 15px;
            border-radius: 20px;
            font-size: 0.9rem;
            text-decoration: none;
            transition: all 0.3s ease;
        }
        
        .tag:hover {
            background: var(--primary-blue);
            color: white;
        }
        
        /* Author Bio */
        .author-bio {
            background: white;
            border-radius: var(--border-radius);
            padding: 30px;
            display: flex;
            gap: 20px;
            align-items: center;
            margin-bottom: 40px;
            box-shadow: var(--box-shadow);
        }
        
        .author-avatar {
            width: 80px;
            height: 80px;
            border-radius: 50%;
            border: 3px solid var(--primary-blue);
            overflow: hidden;
            flex-shrink: 0;
        }
        
        .author-info h3 {
            margin-bottom: 10px;
            color: var(--dark-blue);
        }
        
        .author-links {
            display: flex;
            gap: 15px;
            margin-top: 10px;
        }
        
        .author-links a {
            color: var(--accent-gray);
            font-size: 1.2rem;
            transition: color 0.3s ease;
        }
        
        .author-links a:hover {
            color: var(--primary-blue);
        }
        
        /* Social Sharing */
        .social-sharing {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin: 30px 0;
        }
        
        .share-btn {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 8px 20px;
            border-radius: 30px;
            text-decoration: none;
            color: white;
            font-weight: 500;
            transition: transform 0.3s ease;
        }
        
        .share-btn:hover {
            transform: translateY(-3px);
        }
        
        .facebook { background: #3b5998; }
        .twitter { background: #1da1f2; }
        .linkedin { background: #0077b5; }
        .whatsapp { background: #25d366; }
        
        /* Related Posts */
        .related-posts {
            margin-bottom: 60px;
        }
        
        .section-title {
            font-size: 1.8rem;
            color: var(--dark-blue);
            margin-bottom: 25px;
            position: relative;
            padding-bottom: 15px;
        }
        
        .section-title::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 60px;
            height: 3px;
            background: var(--primary-blue);
        }
        
        .related-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 25px;
        }
        
        .related-card {
            background: white;
            border-radius: var(--border-radius);
            overflow: hidden;
            box-shadow: var(--box-shadow);
            transition: transform 0.3s ease;
        }
        
        .related-card:hover {
            transform: translateY(-5px);
        }
        
        .related-image {
            height: 180px;
            overflow: hidden;
        }
        
        .related-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.3s ease;
        }
        
        .related-card:hover .related-image img {
            transform: scale(1.05);
        }
        
        .related-content {
            padding: 20px;
        }
        
        .related-content h3 {
            margin-bottom: 10px;
            font-size: 1.2rem;
        }
        
        .related-content h3 a {
            color: var(--text-dark);
            text-decoration: none;
            transition: color 0.3s ease;
        }
        
        .related-content h3 a:hover {
            color: var(--primary-blue);
        }
        
        .related-date {
            color: var(--accent-gray);
            font-size: 0.85rem;
        }
        
        /* Footer Styles */
        .site-footer {
            background: #1a1f2e;
            color: white;
            padding: 60px 0 20px;
        }
        
        /* Responsive Design */
        @media (max-width: 1024px) {
            .post-content {
                padding: 30px;
            }
            
            .post-title {
                font-size: 2rem;
            }
        }
        
        @media (max-width: 768px) {
            .post-content {
                padding: 25px 20px;
            }
            
            .post-title {
                font-size: 1.8rem;
            }
            
            .author-bio {
                flex-direction: column;
                text-align: center;
            }
            
            .author-links {
                justify-content: center;
            }
        }
        
        @media (max-width: 480px) {
            .post-title {
                font-size: 1.6rem;
            }
            
            .post-meta {
                flex-direction: column;
                gap: 10px;
            }
            
            .social-sharing {
                flex-direction: column;
            }
            
            .share-btn {
                justify-content: center;
            }
        }