:root {
            --primary: #dc2626;
            --primary-dark: #b91c1c;
            --secondary: #1e40af;
            --accent: #fbbf24;
            --light: #fef2f2;
            --dark: #1f2937;
            --gray: #6b7280;
            --gray-light: #e5e7eb;
            --transition: all 0.3s ease;
            --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
            --radius: 8px;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            line-height: 1.6;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
            color: var(--dark);
            background: linear-gradient(135deg, #f8fafc 0%, #fef2f2 100%);
            min-height: 100vh;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: white;
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
        }
        .logo {
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo i {
            color: var(--secondary);
        }
        .logo span {
            background: linear-gradient(45deg, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .search-form {
            display: flex;
            flex: 0 1 400px;
        }
        .search-form input {
            flex: 1;
            padding: 10px 15px;
            border: 2px solid var(--gray-light);
            border-radius: var(--radius) 0 0 var(--radius);
            font-size: 1rem;
            transition: var(--transition);
        }
        .search-form input:focus {
            outline: none;
            border-color: var(--primary);
        }
        .search-form button {
            background: var(--primary);
            color: white;
            border: none;
            padding: 0 20px;
            border-radius: 0 var(--radius) var(--radius) 0;
            cursor: pointer;
            transition: var(--transition);
        }
        .search-form button:hover {
            background: var(--primary-dark);
        }
        nav {
            background: linear-gradient(to right, var(--secondary), var(--primary));
            position: relative;
        }
        .nav-desktop {
            display: flex;
            list-style: none;
        }
        .nav-desktop li {
            flex: 1;
            text-align: center;
        }
        .nav-desktop a {
            color: white;
            text-decoration: none;
            padding: 15px 20px;
            display: block;
            font-weight: 500;
            transition: var(--transition);
            border-right: 1px solid rgba(255,255,255,0.1);
        }
        .nav-desktop a:hover, .nav-desktop a.active {
            background: rgba(255,255,255,0.15);
            color: var(--accent);
        }
        .nav-desktop a i {
            margin-right: 8px;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.5rem;
            cursor: pointer;
            padding: 10px;
        }
        .mobile-nav {
            display: none;
            background: var(--dark);
            position: absolute;
            top: 100%;
            left: 0;
            right: 0;
            z-index: 1000;
        }
        .mobile-nav.active {
            display: block;
        }
        .mobile-nav a {
            color: white;
            text-decoration: none;
            padding: 15px 20px;
            display: block;
            border-bottom: 1px solid rgba(255,255,255,0.1);
        }
        .mobile-nav a:hover {
            background: var(--primary);
        }
        .breadcrumb {
            background: var(--light);
            padding: 10px 0;
            font-size: 0.9rem;
            margin-bottom: 30px;
        }
        .breadcrumb a {
            color: var(--primary);
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        main {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            padding: 30px 0;
        }
        .article-content {
            background: white;
            border-radius: var(--radius);
            padding: 40px;
            box-shadow: var(--shadow);
        }
        article h1 {
            color: var(--primary);
            font-size: 2.5rem;
            margin-bottom: 20px;
            line-height: 1.2;
        }
        .article-meta {
            color: var(--gray);
            margin-bottom: 30px;
            display: flex;
            gap: 20px;
            font-size: 0.9rem;
        }
        .article-meta i {
            margin-right: 5px;
        }
        article h2 {
            color: var(--secondary);
            font-size: 1.8rem;
            margin: 40px 0 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--light);
        }
        article h3 {
            color: var(--dark);
            font-size: 1.4rem;
            margin: 30px 0 15px;
        }
        article p {
            margin-bottom: 20px;
            line-height: 1.8;
            text-align: justify;
        }
        article strong {
            color: var(--primary);
            font-weight: 600;
        }
        article em {
            color: var(--secondary);
            font-style: italic;
        }
        .highlight-box {
            background: linear-gradient(45deg, var(--light), #f0f9ff);
            border-left: 4px solid var(--accent);
            padding: 25px;
            margin: 30px 0;
            border-radius: 0 var(--radius) var(--radius) 0;
        }
        .feature-image {
            width: 100%;
            height: 400px;
            object-fit: cover;
            border-radius: var(--radius);
            margin: 30px 0;
            box-shadow: 0 10px 25px rgba(0,0,0,0.1);
            transition: transform 0.5s ease;
        }
        .feature-image:hover {
            transform: scale(1.02);
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 20px;
            margin: 30px 0;
        }
        .stat-card {
            background: white;
            padding: 20px;
            border-radius: var(--radius);
            text-align: center;
            box-shadow: var(--shadow);
            border-top: 4px solid var(--primary);
        }
        .stat-card i {
            font-size: 2rem;
            color: var(--primary);
            margin-bottom: 10px;
        }
        .stat-number {
            font-size: 2rem;
            font-weight: 700;
            color: var(--secondary);
        }
        aside {
            position: sticky;
            top: 100px;
            align-self: start;
        }
        .sidebar-widget {
            background: white;
            border-radius: var(--radius);
            padding: 25px;
            margin-bottom: 30px;
            box-shadow: var(--shadow);
        }
        .sidebar-widget h3 {
            color: var(--primary);
            margin-bottom: 20px;
            font-size: 1.2rem;
        }
        .rating-widget {
            text-align: center;
        }
        .stars {
            font-size: 1.5rem;
            color: var(--accent);
            margin: 15px 0;
        }
        .stars i {
            cursor: pointer;
            transition: var(--transition);
        }
        .stars i:hover {
            transform: scale(1.2);
        }
        .rating-form input, 
        .comment-form input,
        .comment-form textarea {
            width: 100%;
            padding: 12px;
            margin: 10px 0;
            border: 1px solid var(--gray-light);
            border-radius: var(--radius);
            transition: var(--transition);
        }
        .rating-form input:focus,
        .comment-form input:focus,
        .comment-form textarea:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.1);
        }
        .btn {
            background: linear-gradient(to right, var(--primary), var(--primary-dark));
            color: white;
            border: none;
            padding: 12px 25px;
            border-radius: var(--radius);
            cursor: pointer;
            font-weight: 600;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 12px rgba(220, 38, 38, 0.2);
        }
        .btn-secondary {
            background: linear-gradient(to right, var(--secondary), #1e3a8a);
        }
        .web-links {
            background: white;
            border-radius: var(--radius);
            padding: 30px;
            margin: 40px 0;
            box-shadow: var(--shadow);
        }
        .web-links h2 {
            color: var(--secondary);
            margin-bottom: 20px;
        }
        .web-links-container {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 15px;
        }
        .web-link {
            background: var(--light);
            padding: 15px;
            border-radius: var(--radius);
            transition: var(--transition);
        }
        .web-link:hover {
            background: #fee2e2;
            transform: translateX(5px);
        }
        .web-link a {
            color: var(--primary);
            text-decoration: none;
            font-weight: 500;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .web-link a:hover {
            text-decoration: underline;
        }
        footer {
            background: linear-gradient(135deg, var(--dark), #111827);
            color: white;
            padding: 60px 0 30px;
            margin-top: 60px;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-section h3 {
            color: var(--accent);
            margin-bottom: 20px;
            font-size: 1.2rem;
        }
        .footer-links a {
            color: #d1d5db;
            text-decoration: none;
            display: block;
            margin-bottom: 10px;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: var(--accent);
            padding-left: 5px;
        }
        .copyright {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid rgba(255,255,255,0.1);
            color: #9ca3af;
            font-size: 0.9rem;
        }
        @media (max-width: 1024px) {
            main {
                grid-template-columns: 1fr;
            }
            aside {
                position: static;
            }
        }
        @media (max-width: 768px) {
            .header-top {
                flex-direction: column;
                gap: 20px;
            }
            .search-form {
                width: 100%;
            }
            .nav-desktop {
                display: none;
            }
            .hamburger {
                display: block;
                position: absolute;
                right: 20px;
                top: -50px;
            }
            article h1 {
                font-size: 2rem;
            }
            .article-content {
                padding: 25px;
            }
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .feature-image {
                height: 250px;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 15px;
            }
            .article-meta {
                flex-direction: column;
                gap: 10px;
            }
            .web-links-container {
                grid-template-columns: 1fr;
            }
            .footer-content {
                grid-template-columns: 1fr;
            }
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .article-content, .sidebar-widget {
            animation: fadeIn 0.6s ease-out;
        }
        @media print {
            header, aside, .web-links, footer, .breadcrumb {
                display: none;
            }
            main {
                grid-template-columns: 1fr;
            }
            .article-content {
                box-shadow: none;
                padding: 0;
            }
        }