:root {
            --primary: #c62828;
            --primary-dark: #8e0000;
            --secondary: #212121;
            --accent: #ff9800;
            --light: #f5f5f5;
            --gray: #757575;
            --spacing-xs: 0.5rem;
            --spacing-sm: 1rem;
            --spacing-md: 2rem;
            --spacing-lg: 4rem;
            --border-radius: 8px;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
            --max-width: 1200px;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
            line-height: 1.7;
            color: var(--secondary);
            background-color: #fafafa;
        }
        a {
            color: inherit;
            text-decoration: none;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 var(--spacing-sm);
        }
        .main-header {
            background-color: white;
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: var(--spacing-sm) 0;
        }
        .logo {
            font-size: 1.8rem;
            font-weight: 900;
            color: var(--primary);
            text-transform: uppercase;
            letter-spacing: -1px;
        }
        .logo span {
            color: var(--secondary);
        }
        .desktop-nav {
            display: flex;
            gap: var(--spacing-md);
        }
        .desktop-nav a {
            font-weight: 600;
            padding: var(--spacing-xs) var(--spacing-sm);
            border-radius: var(--border-radius);
            transition: all 0.3s ease;
        }
        .desktop-nav a:hover {
            background-color: var(--primary);
            color: white;
        }
        .mobile-toggle {
            display: none;
            font-size: 1.5rem;
            cursor: pointer;
            color: var(--secondary);
        }
        .mobile-nav {
            display: none;
            flex-direction: column;
            background: white;
            padding: var(--spacing-sm);
            box-shadow: inset 0 2px 5px rgba(0,0,0,0.05);
        }
        .mobile-nav.active {
            display: flex;
        }
        .mobile-nav a {
            padding: var(--spacing-sm);
            border-bottom: 1px solid #eee;
            font-weight: 600;
        }
        .mobile-nav a:last-child {
            border-bottom: none;
        }
        .breadcrumb {
            padding: var(--spacing-sm) 0;
            background-color: #f0f0f0;
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: var(--gray);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb i {
            margin: 0 0.5rem;
        }
        .search-section {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            padding: var(--spacing-md) 0;
            color: white;
            text-align: center;
        }
        .search-box {
            max-width: 600px;
            margin: 0 auto;
        }
        .search-box h2 {
            margin-bottom: var(--spacing-sm);
        }
        .search-form {
            display: flex;
            border-radius: 50px;
            overflow: hidden;
            box-shadow: var(--shadow);
        }
        .search-input {
            flex: 1;
            padding: 1rem 1.5rem;
            border: none;
            font-size: 1rem;
        }
        .search-btn {
            background-color: var(--accent);
            color: white;
            border: none;
            padding: 1rem 2rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.3s;
        }
        .search-btn:hover {
            background-color: #e68900;
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: var(--spacing-lg);
            padding: var(--spacing-lg) 0;
        }
        @media (max-width: 992px) {
            .main-content {
                grid-template-columns: 1fr;
            }
        }
        .article {
            background: white;
            padding: var(--spacing-lg);
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
        }
        .article h1 {
            color: var(--primary);
            font-size: 2.5rem;
            margin-bottom: var(--spacing-sm);
            line-height: 1.2;
        }
        .meta {
            color: var(--gray);
            margin-bottom: var(--spacing-md);
            padding-bottom: var(--spacing-sm);
            border-bottom: 1px solid #eee;
            display: flex;
            gap: var(--spacing-md);
            flex-wrap: wrap;
        }
        .meta span {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }
        .content h2 {
            color: var(--secondary);
            font-size: 1.8rem;
            margin: var(--spacing-md) 0 var(--spacing-sm);
            padding-bottom: 0.5rem;
            border-bottom: 2px solid var(--accent);
        }
        .content h3 {
            font-size: 1.4rem;
            margin: var(--spacing-sm) 0;
            color: var(--primary-dark);
        }
        .content p {
            margin-bottom: 1.5rem;
            text-align: justify;
        }
        .content ul, .content ol {
            margin-left: 1.5rem;
            margin-bottom: 1.5rem;
        }
        .content li {
            margin-bottom: 0.5rem;
        }
        .highlight {
            background-color: #fff8e1;
            border-left: 4px solid var(--accent);
            padding: var(--spacing-sm);
            margin: var(--spacing-sm) 0;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
        }
        .feature-img {
            margin: var(--spacing-md) 0;
            border-radius: var(--border-radius);
            overflow: hidden;
            box-shadow: var(--shadow);
        }
        .feature-img figcaption {
            padding: var(--spacing-xs);
            background: #f5f5f5;
            text-align: center;
            font-size: 0.9rem;
            color: var(--gray);
        }
        .quote {
            font-style: italic;
            padding: var(--spacing-sm);
            border-left: 3px solid var(--primary);
            background-color: #f9f9f9;
            margin: var(--spacing-md) 0;
        }
        .author {
            font-weight: 600;
            color: var(--primary);
            margin-top: 0.5rem;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-md);
        }
        .sidebar-widget {
            background: white;
            padding: var(--spacing-md);
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
        }
        .sidebar-widget h3 {
            color: var(--primary);
            margin-bottom: var(--spacing-sm);
            padding-bottom: 0.5rem;
            border-bottom: 1px solid #eee;
        }
        .download-box {
            background: linear-gradient(135deg, var(--primary), #d32f2f);
            color: white;
            text-align: center;
            padding: var(--spacing-md);
        }
        .download-btn {
            display: inline-block;
            background-color: var(--accent);
            color: white;
            padding: 1rem 2rem;
            border-radius: 50px;
            font-weight: 700;
            margin-top: var(--spacing-sm);
            transition: transform 0.3s, box-shadow 0.3s;
        }
        .download-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 6px 15px rgba(0,0,0,0.2);
        }
        .rating-widget form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        .stars {
            display: flex;
            justify-content: center;
            gap: 0.5rem;
            font-size: 1.5rem;
            color: #ddd;
            cursor: pointer;
        }
        .stars .active {
            color: var(--accent);
        }
        .rating-widget input, .rating-widget button, .comment-form input, .comment-form textarea {
            width: 100%;
            padding: 0.8rem;
            border: 1px solid #ddd;
            border-radius: var(--border-radius);
        }
        .rating-widget button, .comment-form button {
            background-color: var(--primary);
            color: white;
            border: none;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.3s;
        }
        .rating-widget button:hover, .comment-form button:hover {
            background-color: var(--primary-dark);
        }
        .comments-section {
            margin-top: var(--spacing-lg);
        }
        .comment {
            background: #f9f9f9;
            padding: var(--spacing-sm);
            border-radius: var(--border-radius);
            margin-bottom: var(--spacing-sm);
        }
        .comment-header {
            display: flex;
            justify-content: space-between;
            margin-bottom: 0.5rem;
            font-size: 0.9rem;
        }
        .comment-author {
            font-weight: 600;
            color: var(--primary);
        }
        .comment-date {
            color: var(--gray);
        }
        .web-links {
            background-color: var(--secondary);
            padding: var(--spacing-md) 0;
            color: white;
        }
        .web-links-container {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: var(--spacing-sm);
        }
        .web-link {
            padding: var(--spacing-sm);
            background-color: rgba(255,255,255,0.05);
            border-radius: var(--border-radius);
            transition: background 0.3s;
        }
        .web-link:hover {
            background-color: rgba(255,255,255,0.1);
        }
        .web-link a {
            color: #bbbbbb;
        }
        .web-link a:hover {
            color: white;
            text-decoration: underline;
        }
        .main-footer {
            background-color: #1a1a1a;
            color: #aaa;
            padding: var(--spacing-md) 0;
            text-align: center;
        }
        .footer-container {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: var(--spacing-sm);
        }
        .social-links {
            display: flex;
            gap: var(--spacing-md);
            font-size: 1.5rem;
        }
        .social-links a {
            transition: color 0.3s;
        }
        .social-links a:hover {
            color: var(--accent);
        }
        @media (max-width: 768px) {
            .desktop-nav {
                display: none;
            }
            .mobile-toggle {
                display: block;
            }
            .article h1 {
                font-size: 2rem;
            }
            .main-content {
                padding: var(--spacing-sm) 0;
            }
            .article {
                padding: var(--spacing-md);
            }
            .search-input, .search-btn {
                padding: 0.8rem 1rem;
            }
        }