:root {
            --primary: #1e3a8a;
            --secondary: #dc2626;
            --accent: #f59e0b;
            --light: #f8fafc;
            --dark: #0f172a;
            --gray: #64748b;
            --transition: all 0.3s ease;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', system-ui, sans-serif;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background-color: #f1f5f9;
            color: #334155;
            line-height: 1.7;
            overflow-x: hidden;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, var(--primary) 0%, #1e40af 100%);
            color: white;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
        }
        .logo a {
            color: white;
            text-decoration: none;
            font-size: 1.8rem;
            font-weight: 800;
            display: flex;
            align-items: center;
            gap: 10px;
            letter-spacing: -0.5px;
        }
        .logo i {
            color: var(--accent);
        }
        .search-form {
            display: flex;
            max-width: 400px;
            width: 100%;
        }
        .search-form input {
            flex: 1;
            padding: 12px 20px;
            border: none;
            border-radius: 50px 0 0 50px;
            font-size: 1rem;
            background: rgba(255, 255, 255, 0.95);
        }
        .search-form button {
            background: var(--secondary);
            color: white;
            border: none;
            padding: 0 25px;
            border-radius: 0 50px 50px 0;
            cursor: pointer;
            transition: var(--transition);
            font-weight: 600;
        }
        .search-form button:hover {
            background: #b91c1c;
        }
        nav {
            background-color: rgba(30, 58, 138, 0.98);
            border-top: 1px solid rgba(255, 255, 255, 0.1);
        }
        .nav-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .nav-links {
            display: flex;
            list-style: none;
        }
        .nav-links li {
            position: relative;
        }
        .nav-links a {
            color: white;
            text-decoration: none;
            padding: 18px 20px;
            display: block;
            font-weight: 500;
            transition: var(--transition);
            border-bottom: 3px solid transparent;
        }
        .nav-links a:hover,
        .nav-links a.active {
            background-color: rgba(255, 255, 255, 0.1);
            border-bottom-color: var(--accent);
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 1.5rem;
            cursor: pointer;
            padding: 10px;
        }
        .breadcrumb {
            background-color: #e2e8f0;
            padding: 12px 0;
            font-size: 0.9rem;
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
        }
        .breadcrumb li:not(:last-child)::after {
            content: ">";
            margin: 0 10px;
            color: var(--gray);
        }
        .breadcrumb a {
            color: var(--primary);
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        main {
            padding: 40px 0;
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
        }
        .content {
            background: white;
            border-radius: 12px;
            padding: 40px;
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
        }
        h1 {
            color: var(--dark);
            font-size: 2.5rem;
            margin-bottom: 20px;
            line-height: 1.2;
            border-left: 5px solid var(--secondary);
            padding-left: 20px;
        }
        h2 {
            color: var(--primary);
            font-size: 1.8rem;
            margin: 35px 0 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid #e2e8f0;
        }
        h3 {
            color: #475569;
            font-size: 1.4rem;
            margin: 25px 0 15px;
        }
        p {
            margin-bottom: 20px;
            text-align: justify;
        }
        .lead {
            font-size: 1.2rem;
            color: var(--primary);
            font-weight: 500;
            background-color: #eff6ff;
            padding: 20px;
            border-radius: 8px;
            margin-bottom: 30px;
            border-left: 4px solid var(--accent);
        }
        .highlight {
            background-color: #fef3c7;
            padding: 25px;
            border-radius: 10px;
            margin: 25px 0;
            border: 1px dashed var(--accent);
        }
        .highlight strong {
            color: var(--primary);
            display: block;
            margin-bottom: 10px;
            font-size: 1.1rem;
        }
        .image-container {
            margin: 30px 0;
            text-align: center;
        }
        .image-container img {
            max-width: 100%;
            height: auto;
            border-radius: 10px;
            box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
            transition: var(--transition);
        }
        .image-container img:hover {
            transform: translateY(-5px);
            box-shadow: 0 12px 30px rgba(0, 0, 0, 0.2);
        }
        .image-caption {
            font-style: italic;
            color: var(--gray);
            margin-top: 10px;
            font-size: 0.95rem;
        }
        ul, ol {
            margin-left: 25px;
            margin-bottom: 25px;
        }
        li {
            margin-bottom: 10px;
        }
        a.content-link {
            color: var(--secondary);
            text-decoration: none;
            font-weight: 500;
            border-bottom: 1px dotted var(--secondary);
            transition: var(--transition);
        }
        a.content-link:hover {
            color: var(--primary);
            border-bottom-style: solid;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 20px;
            margin: 30px 0;
        }
        .stat-card {
            background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
            padding: 20px;
            border-radius: 10px;
            text-align: center;
            border: 1px solid #bae6fd;
        }
        .stat-number {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--primary);
            display: block;
            line-height: 1;
        }
        .stat-label {
            color: var(--gray);
            font-size: 0.95rem;
            margin-top: 5px;
        }
        blockquote {
            border-left: 4px solid var(--secondary);
            padding-left: 20px;
            margin: 25px 0;
            font-style: italic;
            color: #475569;
            background-color: #f8fafc;
            padding: 20px;
            border-radius: 0 8px 8px 0;
        }
        aside {
            display: flex;
            flex-direction: column;
            gap: 25px;
        }
        .sidebar-widget {
            background: white;
            border-radius: 10px;
            padding: 25px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
        }
        .widget-title {
            color: var(--primary);
            font-size: 1.3rem;
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid #e2e8f0;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .widget-title i {
            color: var(--secondary);
        }
        .related-links ul {
            list-style: none;
            margin-left: 0;
        }
        .related-links li {
            margin-bottom: 12px;
            padding-bottom: 12px;
            border-bottom: 1px solid #f1f5f9;
        }
        .related-links a {
            color: var(--dark);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
            transition: var(--transition);
        }
        .related-links a:hover {
            color: var(--secondary);
            transform: translateX(5px);
        }
        .related-links i {
            color: var(--accent);
            font-size: 0.8rem;
        }
        .comment-form,
        .rating-form {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }
        .form-group {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .form-group label {
            font-weight: 600;
            color: var(--dark);
        }
        .form-control {
            padding: 12px 15px;
            border: 1px solid #cbd5e1;
            border-radius: 8px;
            font-size: 1rem;
            transition: var(--transition);
        }
        .form-control:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(30, 58, 138, 0.1);
        }
        textarea.form-control {
            min-height: 120px;
            resize: vertical;
            font-family: inherit;
        }
        .rating-stars {
            display: flex;
            gap: 5px;
            margin: 5px 0;
        }
        .rating-stars input {
            display: none;
        }
        .rating-stars label {
            font-size: 1.8rem;
            color: #cbd5e1;
            cursor: pointer;
            transition: var(--transition);
        }
        .rating-stars label:hover,
        .rating-stars label:hover ~ label {
            color: #fbbf24;
        }
        .rating-stars input:checked ~ label {
            color: #f59e0b;
        }
        .btn {
            background: var(--primary);
            color: white;
            border: none;
            padding: 14px 25px;
            border-radius: 8px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            font-size: 1rem;
            text-align: center;
            text-decoration: none;
            display: inline-block;
        }
        .btn:hover {
            background: #1e40af;
            transform: translateY(-2px);
            box-shadow: 0 6px 12px rgba(30, 58, 138, 0.2);
        }
        .btn-secondary {
            background: var(--secondary);
        }
        .btn-secondary:hover {
            background: #b91c1c;
        }
        footer {
            background: var(--dark);
            color: #cbd5e1;
            padding: 50px 0 20px;
            margin-top: 50px;
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: white;
            margin-bottom: 20px;
            display: block;
        }
        .footer-links h4 {
            color: white;
            font-size: 1.2rem;
            margin-bottom: 20px;
            position: relative;
            padding-bottom: 10px;
        }
        .footer-links h4::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 40px;
            height: 3px;
            background: var(--accent);
        }
        .footer-links ul {
            list-style: none;
            margin-left: 0;
        }
        .footer-links li {
            margin-bottom: 12px;
        }
        .footer-links a {
            color: #94a3b8;
            text-decoration: none;
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .footer-links a:hover {
            color: white;
            transform: translateX(5px);
        }
        .footer-links i {
            font-size: 0.8rem;
            color: var(--accent);
        }
        friend-link {
            display: block;
            background: rgba(255, 255, 255, 0.05);
            padding: 20px;
            border-radius: 8px;
            margin-bottom: 30px;
        }
        .friend-link-title {
            color: white;
            font-size: 1.2rem;
            margin-bottom: 15px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .friend-link-title i {
            color: var(--accent);
        }
        .friend-link-list {
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
        }
        .friend-link-list a {
            background: rgba(255, 255, 255, 0.08);
            color: #cbd5e1;
            padding: 8px 16px;
            border-radius: 50px;
            text-decoration: none;
            transition: var(--transition);
            font-size: 0.9rem;
            border: 1px solid transparent;
        }
        .friend-link-list a:hover {
            background: rgba(255, 255, 255, 0.15);
            color: white;
            border-color: var(--accent);
        }
        .copyright {
            text-align: center;
            padding-top: 25px;
            border-top: 1px solid #334155;
            font-size: 0.9rem;
            color: #94a3b8;
        }
        @media (max-width: 992px) {
            main {
                grid-template-columns: 1fr;
            }
            .nav-links {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background-color: var(--primary);
                box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
            }
            .nav-links.active {
                display: flex;
            }
            .hamburger {
                display: block;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.6rem;
            }
        }
        @media (max-width: 768px) {
            .header-top {
                flex-direction: column;
                gap: 20px;
            }
            .search-form {
                max-width: 100%;
            }
            .content {
                padding: 25px;
            }
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .footer-content {
                grid-template-columns: 1fr;
                gap: 30px;
            }
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .fade-in {
            animation: fadeIn 0.8s ease forwards;
        }
        .text-center { text-align: center; }
        .text-primary { color: var(--primary); }
        .text-secondary { color: var(--secondary); }
        .text-accent { color: var(--accent); }
        .mt-1 { margin-top: 10px; }
        .mt-2 { margin-top: 20px; }
        .mt-3 { margin-top: 30px; }
        .mb-1 { margin-bottom: 10px; }
        .mb-2 { margin-bottom: 20px; }
        .mb-3 { margin-bottom: 30px; }
        .bold { font-weight: 700; }
        .emoji { font-size: 1.2em; }