h1, h2, h3, h4, h5, h6 {
            font-family: var(--heading-font);
            font-weight: 600;
        }

        #progress-bar {
            position: fixed; top: 0; left: 0; width: 0%; height: 5px;
            background: linear-gradient(90deg, var(--primary-color), #17a2b8);
            z-index: 1050; transition: width 0.1s;
        } 

        .hero-header {
            height: 500px; background-size: cover; background-position: center;
            position: relative; color: white; display: flex; align-items: flex-end;
            padding-bottom: 5rem;
        }
        .hero-header::after {
            content: ''; position: absolute; top: 0; left: 0; right: 0; bottom: 0;
            background: linear-gradient(0deg, rgba(0, 0, 0, 0.8) 0%, rgba(0, 0, 0, 0.1) 100%);
        }
        .hero-content { z-index: 2; }
        .hero-content .category-badge {
            background-color: var(--primary-color); color: white;
            padding: 0.4em 0.9em; border-radius: 50px; font-size: 0.9rem;
            text-decoration: none; font-family: var(--heading-font);
        }
        .post-meta { font-family: var(--heading-font); }
        .post-meta span { margin-right: 20px; opacity: 0.9; }

        .article-container { margin-top: -60px; position: relative; z-index: 3; }

        .article-content {
            line-height: 2; font-size: 1.15rem;
        }
        .article-content h2, .article-content h3 {
            margin-top: 2.5rem; margin-bottom: 1.5rem;
        }
        .article-content img {
            max-width: 100%; height: auto; border-radius: 8px; margin: 25px 0;
        }
        .article-content blockquote {
            border-left: 4px solid var(--primary-color);
            padding: 15px 25px; margin: 30px 0;
            background-color: #eef5ff; font-style: italic; font-size: 1.2rem;
        }
        
        /* Sidebar & Widgets */
        .sidebar .widget {
            background: white; padding: 25px; border-radius: 8px; margin-bottom: 30px;
            box-shadow: 0 4px 20px rgba(0,0,0,0.06); border: 1px solid #e9ecef;
        }
        .widget-title {
            font-weight: 600; margin-bottom: 20px; padding-bottom: 10px;
            border-bottom: 2px solid var(--primary-color);
            font-size: 1.25rem;
        }
        .widget ul {
            list-style: none;
            padding: 0;
        }
        .latest-posts-list li {
            margin-bottom: 15px;
            padding-bottom: 15px;
            border-bottom: 1px solid #eee;
        }
        .latest-posts-list li:last-child {
            margin-bottom: 0;
            padding-bottom: 0;
            border-bottom: none;
        }
        .latest-posts-list a {
            text-decoration: none;
            color: var(--text-color);
            font-weight: 600;
            font-family: var(--heading-font);
        }
        .latest-posts-list a:hover {
            color: var(--primary-color);
        }
        .latest-posts-list small {
            font-size: 0.85rem;
            color: var(--secondary-color);
        }

        .tag-cloud a {
            display: inline-block; background: #e9ecef; padding: 5px 15px; border-radius: 50px;
            text-decoration: none; color: #495057; margin: 4px 2px; transition: all 0.3s; font-size: 0.9rem;
        }
        .tag-cloud a:hover { background: var(--primary-color); color: white; }
        
        /* Floating Action Buttons (Like & Share) */
        .floating-actions {
            position: sticky; top: 120px; text-align: center;
        }
        .floating-actions .action-btn {
            display: flex; flex-direction: column; align-items: center;
            margin: 25px 0; font-size: 1.2rem; color: var(--secondary-color);
            cursor: pointer; transition: all 0.3s; text-decoration: none;
        }
        .floating-actions .action-btn:hover { color: var(--primary-color); transform: scale(1.1); }
        .floating-actions .action-btn small { font-size: 0.8rem; margin-top: 5px; font-family: var(--heading-font); }
        .action-btn.liked { color: #dc3545; }
        
        .author-box {
            padding: 20px; text-align: center; background-color: #f8f9fa;
            border-radius: 8px; margin-top: 40px; border-top: 2px solid var(--primary-color);
        }

        .related-articles-title { margin-top: 50px; }
        .related-card {
            border: none; box-shadow: 0 4px 20px rgba(0,0,0,0.06); transition: all 0.3s;
        }
        .related-card:hover { transform: translateY(-5px); box-shadow: 0 6px 25px rgba(0,0,0,0.1); }
        .related-card img { height: 200px; object-fit: cover; }