:root {
            --primary-color: #c62828;
            --secondary-color: #d32f2f;
            --accent-color: #ef5350;
            --light-color: #ffebee;
            --dark-color: #212121;
            --gray-color: #757575;
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Georgia', serif;
        }
        
        body {
            background-color: #f5f5f5;
            color: #333;
            line-height: 1.6;
        }
        
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 15px;
        }
        
        /* Header Styles */
        header {
            background-color: var(--primary-color);
            color: white;
            padding: 15px 0;
            box-shadow: 0 2px 5px rgba(0,0,0,0.1);
            position: sticky;
            top: 0;
            z-index: 100;
        }
        
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .logo {
            font-size: 24px;
            font-weight: bold;
            text-transform: uppercase;
            letter-spacing: 1px;
        }
        
        .logo span {
            color: var(--light-color);
        }
        
        /* Navigation Styles */
        nav ul {
            display: flex;
            list-style: none;
        }
        
        nav ul li {
            margin-left: 20px;
        }
        
        nav ul li a {
            color: white;
            text-decoration: none;
            font-weight: 500;
            transition: color 0.3s;
            text-transform: uppercase;
            font-size: 14px;
        }
        
        nav ul li a:hover {
            color: var(--light-color);
        }
        
        /* Mobile Menu Toggle */
        .menu-toggle {
            display: none;
            cursor: pointer;
        }
        
        .menu-toggle i {
            font-size: 24px;
            color: white;
        }
        
        /* Article Content */
        .article-container {
            display: flex;
            margin-top: 30px;
            margin-bottom: 40px;
        }
        
        .main-content {
            flex: 2;
            background-color: white;
            padding: 30px;
            border-radius: 5px;
            box-shadow: 0 2px 10px rgba(0,0,0,0.05);
        }
        
        .article-header {
            margin-bottom: 20px;
            border-bottom: 2px solid var(--primary-color);
            padding-bottom: 15px;
        }
        
        .article-category {
            display: inline-block;
            background-color: var(--primary-color);
            color: white;
            padding: 5px 10px;
            font-size: 12px;
            text-transform: uppercase;
            margin-bottom: 10px;
        }
        
        .article-title {
            font-size: 32px;
            margin-bottom: 15px;
            line-height: 1.2;
        }
        
        .article-meta {
            display: flex;
            font-size: 14px;
            color: var(--gray-color);
        }
        
        .article-meta span {
            margin-right: 20px;
        }
        
        .article-meta i {
            margin-right: 5px;
            color: var(--primary-color);
        }
        
        .featured-image {
            width: 100%;
            height: auto;
            margin-bottom: 20px;
        }
        
        .article-body {
            font-size: 18px;
            line-height: 1.8;
        }
        
        .article-body p {
            margin-bottom: 20px;
        }
        
        .article-body h2 {
            color: var(--primary-color);
            margin: 30px 0 15px;
            font-size: 24px;
        }
        
        .article-body blockquote {
            border-left: 4px solid var(--primary-color);
            padding-left: 20px;
            margin: 30px 0;
            font-style: italic;
            color: var(--gray-color);
        }
        
        .article-tags {
            margin-top: 30px;
        }
        
        .article-tags span {
            display: inline-block;
            background-color: var(--light-color);
            color: var(--primary-color);
            padding: 5px 10px;
            margin-right: 10px;
            margin-bottom: 10px;
            font-size: 14px;
            border-radius: 3px;
        }
        
        .author-box {
            background-color: var(--light-color);
            padding: 20px;
            margin-top: 30px;
            border-radius: 5px;
            display: flex;
            align-items: center;
        }
        
        .author-image {
            width: 80px;
            height: 80px;
            border-radius: 50%;
            margin-right: 20px;
            object-fit: cover;
        }
        
        .author-info h3 {
            color: var(--primary-color);
            margin-bottom: 5px;
        }
        
        .author-info p {
            font-size: 14px;
            color: var(--gray-color);
        }
        
        /* Sidebar */
        .sidebar {
            flex: 1;
            margin-left: 30px;
        }
        
        .sidebar-widget {
            background-color: white;
            padding: 20px;
            margin-bottom: 20px;
            border-radius: 5px;
            box-shadow: 0 2px 10px rgba(0,0,0,0.05);
        }
        
        .sidebar-widget h3 {
            color: var(--primary-color);
            margin-bottom: 15px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--primary-color);
        }
        
        .sidebar-widget ul {
            list-style: none;
        }
        
        .sidebar-widget ul li {
            margin-bottom: 10px;
            padding-bottom: 10px;
            border-bottom: 1px solid #eee;
        }
        
        .sidebar-widget ul li:last-child {
            border-bottom: none;
        }
        
        .sidebar-widget ul li a {
            color: var(--dark-color);
            text-decoration: none;
            transition: color 0.3s;
        }
        
        .sidebar-widget ul li a:hover {
            color: var(--primary-color);
        }
        
        .newsletter-form {
            display: flex;
            flex-direction: column;
        }
        
        .newsletter-form input {
            padding: 10px;
            margin-bottom: 10px;
            border: 1px solid #ddd;
            border-radius: 3px;
        }
        
        .newsletter-form button {
            background-color: var(--primary-color);
            color: white;
            border: none;
            padding: 10px;
            border-radius: 3px;
            cursor: pointer;
            transition: background-color 0.3s;
        }
        
        .newsletter-form button:hover {
            background-color: var(--secondary-color);
        }
        
        /* Social Share */
        .social-share {
            margin-top: 30px;
        }
        
        .social-share h3 {
            margin-bottom: 15px;
            color: var(--primary-color);
        }
        
        .social-links {
            display: flex;
        }
        
        .social-links a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            margin-right: 10px;
            color: white;
            transition: transform 0.3s;
        }
        
        .social-links a:hover {
            transform: translateY(-3px);
        }
        
        .facebook { background-color: #3b5998; }
        .twitter { background-color: #1da1f2; }
        .instagram { background-color: #c13584; }
        .linkedin { background-color: #0077b5; }
        .whatsapp { background-color: #25d366; }
        
        /* Related Articles */
        .related-articles {
            margin-top: 40px;
        }
        
        .related-articles h3 {
            color: var(--primary-color);
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--primary-color);
        }
        
        .related-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 20px;
        }
        
        .related-card {
            background-color: white;
            border-radius: 5px;
            overflow: hidden;
            box-shadow: 0 2px 10px rgba(0,0,0,0.05);
            transition: transform 0.3s;
        }
        
        .related-card:hover {
            transform: translateY(-5px);
        }
        
        .related-card img {
            width: 100%;
            height: 150px;
            object-fit: cover;
        }
        
        .related-card-content {
            padding: 15px;
        }
        
        .related-card-content h4 {
            margin-bottom: 10px;
        }
        
        .related-card-content h4 a {
            color: var(--dark-color);
            text-decoration: none;
            transition: color 0.3s;
        }
        
        .related-card-content h4 a:hover {
            color: var(--primary-color);
        }
        
        .related-card-content p {
            font-size: 14px;
            color: var(--gray-color);
        }
        
        /* Comments Section */
        .comments-section {
            margin-top: 40px;
        }
        
        .comments-section h3 {
            color: var(--primary-color);
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--primary-color);
        }
        
        .comment-form {
            background-color: white;
            padding: 20px;
            border-radius: 5px;
            margin-bottom: 30px;
            box-shadow: 0 2px 10px rgba(0,0,0,0.05);
        }
        
        .comment-form input,
        .comment-form textarea {
            width: 100%;
            padding: 10px;
            margin-bottom: 15px;
            border: 1px solid #ddd;
            border-radius: 3px;
        }
        
        .comment-form button {
            background-color: var(--primary-color);
            color: white;
            border: none;
            padding: 10px 20px;
            border-radius: 3px;
            cursor: pointer;
            transition: background-color 0.3s;
        }
        
        .comment-form button:hover {
            background-color: var(--secondary-color);
        }
        
        .comment {
            background-color: white;
            padding: 20px;
            border-radius: 5px;
            margin-bottom: 20px;
            box-shadow: 0 2px 10px rgba(0,0,0,0.05);
        }
        
        .comment-header {
            display: flex;
            align-items: center;
            margin-bottom: 15px;
        }
        
        .comment-avatar {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            margin-right: 15px;
            object-fit: cover;
        }
        
        .comment-meta h4 {
            margin-bottom: 5px;
            color: var(--primary-color);
        }
        
        .comment-meta span {
            font-size: 14px;
            color: var(--gray-color);
        }
        
        /* Footer */
        footer {
            background-color: var(--primary-color);
            color: white;
            padding: 40px 0 20px;
        }
        
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 30px;
            margin-bottom: 30px;
        }
        
        .footer-column h3 {
            margin-bottom: 15px;
            position: relative;
            padding-bottom: 10px;
        }
        
        .footer-column h3:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 50px;
            height: 2px;
            background-color: var(--light-color);
        }
        
        .footer-column ul {
            list-style: none;
        }
        
        .footer-column ul li {
            margin-bottom: 10px;
        }
        
        .footer-column ul li a {
            color: white;
            text-decoration: none;
            transition: color 0.3s;
        }
        
        .footer-column ul li a:hover {
            color: var(--light-color);
        }
        
        .footer-bottom {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid rgba(255,255,255,0.1);
        }
        
        .footer-social {
            display: flex;
            margin-top: 15px;
        }
        
        .footer-social a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 35px;
            height: 35px;
            border-radius: 50%;
            margin-right: 10px;
            background-color: rgba(255,255,255,0.1);
            color: white;
            transition: background-color 0.3s;
        }
        
        .footer-social a:hover {
            background-color: var(--secondary-color);
        }
        
        /* Back to Top Button */
        .back-to-top {
            position: fixed;
            bottom: 20px;
            right: 20px;
            width: 40px;
            height: 40px;
            background-color: var(--primary-color);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            opacity: 0;
            visibility: hidden;
            transition: opacity 0.3s, visibility 0.3s;
            z-index: 1000;
        }
        
        .back-to-top.active {
            opacity: 1;
            visibility: visible;
        }
        
        /* Responsive Styles */
        @media (max-width: 992px) {
            .article-container {
                flex-direction: column;
            }
            
            .sidebar {
                margin-left: 0;
                margin-top: 30px;
            }
            
            .related-grid {
                grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
            }
        }
        
        @media (max-width: 768px) {
            .menu-toggle {
                display: block;
            }
            
            nav {
                display: none;
                width: 100%;
                margin-top: 15px;
            }
            
            nav.active {
                display: block;
            }
            
            nav ul {
                flex-direction: column;
            }
            
            nav ul li {
                margin: 10px 0;
            }
            
            .article-title {
                font-size: 24px;
            }
            
            .article-body {
                font-size: 16px;
            }
            
            .author-box {
                flex-direction: column;
                text-align: center;
            }
            
            .author-image {
                margin-right: 0;
                margin-bottom: 15px;
            }
            
            .footer-content {
                grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
            }
        }
        
        @media (max-width: 576px) {
            .article-meta {
                flex-direction: column;
            }
            
            .article-meta span {
                margin-right: 0;
                margin-bottom: 5px;
            }
            
            .social-links {
                flex-wrap: wrap;
            }
            
            .social-links a {
                margin-bottom: 10px;
            }
        }