:root {
            --primary: #2c3e50;
            --secondary: #e74c3c;
            --accent: #3498db;
            --light: #ecf0f1;
            --dark: #1a1a1a;
            --gray: #95a5a6;
            --transition: all 0.3s ease;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: #333;
            background-color: #f9f9f9;
            overflow-x: hidden;
        }
        a {
            color: var(--accent);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--secondary);
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, var(--primary) 0%, var(--dark) 100%);
            color: white;
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 800;
            letter-spacing: 1px;
            color: white;
            text-transform: uppercase;
            background: linear-gradient(90deg, var(--secondary), #ff9f43);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            padding: 5px 0;
        }
        .my-logo:hover {
            transform: scale(1.03);
        }
        nav {
            display: flex;
            align-items: center;
        }
        .nav-links {
            display: flex;
            list-style: none;
        }
        .nav-links li {
            margin-left: 2rem;
        }
        .nav-links a {
            color: var(--light);
            font-weight: 600;
            font-size: 1.1rem;
            padding: 8px 5px;
            border-bottom: 2px solid transparent;
        }
        .nav-links a:hover,
        .nav-links a.active {
            color: var(--secondary);
            border-bottom-color: var(--secondary);
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: white;
        }
        .breadcrumb {
            background: #f1f2f6;
            padding: 12px 0;
            font-size: 0.9rem;
            border-bottom: 1px solid #ddd;
        }
        .breadcrumb a {
            color: var(--primary);
        }
        .breadcrumb i {
            margin: 0 10px;
            color: var(--gray);
        }
        main {
            padding: 30px 0;
            background: white;
            box-shadow: 0 0 20px rgba(0,0,0,0.05);
            border-radius: 8px;
            margin: 20px auto;
        }
        .article-header {
            text-align: center;
            margin-bottom: 40px;
            padding-bottom: 25px;
            border-bottom: 3px solid var(--light);
        }
        h1 {
            font-size: 3.2rem;
            color: var(--primary);
            margin-bottom: 15px;
            line-height: 1.2;
        }
        .lead {
            font-size: 1.4rem;
            color: var(--gray);
            max-width: 800px;
            margin: 0 auto 25px;
        }
        .meta {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 20px;
            font-size: 0.95rem;
            color: var(--gray);
        }
        .meta i {
            margin-right: 8px;
            color: var(--accent);
        }
        .featured-image {
            width: 100%;
            max-height: 500px;
            object-fit: cover;
            border-radius: 10px;
            margin: 30px 0;
            box-shadow: 0 10px 30px rgba(0,0,0,0.15);
            transition: var(--transition);
        }
        .featured-image:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 35px rgba(0,0,0,0.2);
        }
        h2 {
            font-size: 2.4rem;
            color: var(--primary);
            margin: 50px 0 25px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--light);
        }
        h3 {
            font-size: 1.8rem;
            color: var(--dark);
            margin: 35px 0 15px;
        }
        h4 {
            font-size: 1.4rem;
            color: #555;
            margin: 25px 0 10px;
        }
        p {
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
            text-align: justify;
        }
        .highlight {
            background: linear-gradient(120deg, rgba(231, 76, 60, 0.1) 0%, transparent 100%);
            border-left: 5px solid var(--secondary);
            padding: 25px;
            margin: 30px 0;
            border-radius: 0 8px 8px 0;
        }
        .highlight strong {
            color: var(--secondary);
            font-size: 1.2rem;
        }
        .related-links {
            background: #f8f9fa;
            padding: 25px;
            border-radius: 10px;
            margin: 40px 0;
            border: 1px dashed var(--accent);
        }
        .related-links h3 {
            margin-top: 0;
            color: var(--accent);
        }
        .related-links ul {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 15px;
            list-style: none;
        }
        .related-links li a {
            display: block;
            padding: 12px 15px;
            background: white;
            border-radius: 6px;
            box-shadow: 0 3px 8px rgba(0,0,0,0.05);
            font-weight: 600;
        }
        .related-links li a:hover {
            background: var(--accent);
            color: white;
            transform: translateX(5px);
        }
        .interactive-module {
            background: #fff;
            border-radius: 12px;
            padding: 30px;
            margin: 50px 0;
            box-shadow: 0 10px 25px rgba(0,0,0,0.08);
            border-top: 6px solid var(--secondary);
        }
        .module-title {
            font-size: 1.8rem;
            margin-bottom: 25px;
            color: var(--primary);
            display: flex;
            align-items: center;
            gap: 15px;
        }
        .module-title i {
            color: var(--secondary);
        }
        .form-group {
            margin-bottom: 25px;
        }
        label {
            display: block;
            margin-bottom: 10px;
            font-weight: 600;
            color: var(--dark);
        }
        input, textarea, select {
            width: 100%;
            padding: 15px;
            border: 2px solid #ddd;
            border-radius: 8px;
            font-size: 1rem;
            transition: var(--transition);
        }
        input:focus, textarea:focus, select:focus {
            border-color: var(--accent);
            outline: none;
            box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.2);
        }
        button {
            background: linear-gradient(90deg, var(--secondary), #ff6b6b);
            color: white;
            border: none;
            padding: 16px 35px;
            border-radius: 8px;
            cursor: pointer;
            font-size: 1.1rem;
            font-weight: 700;
            transition: var(--transition);
        }
        button:hover {
            transform: translateY(-3px);
            box-shadow: 0 7px 15px rgba(231, 76, 60, 0.3);
        }
        .rating {
            display: flex;
            gap: 10px;
            margin: 20px 0;
        }
        .star {
            font-size: 2.5rem;
            color: #ddd;
            cursor: pointer;
            transition: var(--transition);
        }
        .star:hover,
        .star.active {
            color: #ffc107;
        }
        .comments-section {
            margin-top: 40px;
        }
        .comment {
            background: #f8f9fa;
            padding: 25px;
            border-radius: 10px;
            margin-bottom: 25px;
            border-left: 5px solid var(--accent);
        }
        .comment-author {
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .comment-date {
            color: var(--gray);
            font-size: 0.9rem;
        }
        footer {
            background: var(--dark);
            color: var(--light);
            padding: 50px 0 20px;
            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: white;
            font-size: 1.5rem;
            margin-bottom: 25px;
            position: relative;
            padding-bottom: 10px;
        }
        .footer-section h3::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 50px;
            height: 3px;
            background: var(--secondary);
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 12px;
        }
        .footer-links a {
            color: #bbb;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: white;
            padding-left: 8px;
        }
        friend-link {
            display: inline-block;
            background: rgba(255,255,255,0.05);
            padding: 10px 20px;
            border-radius: 6px;
            margin: 5px;
            border: 1px solid rgba(255,255,255,0.1);
            transition: var(--transition);
        }
        friend-link:hover {
            background: rgba(255,255,255,0.1);
            border-color: var(--accent);
        }
        .copyright {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid rgba(255,255,255,0.1);
            font-size: 0.9rem;
            color: #aaa;
        }
        @media (max-width: 992px) {
            h1 { font-size: 2.8rem; }
            h2 { font-size: 2.1rem; }
            .nav-links { gap: 1rem; }
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .nav-links {
                position: fixed;
                top: 80px;
                right: -100%;
                flex-direction: column;
                background: var(--primary);
                width: 100%;
                text-align: center;
                transition: 0.5s;
                padding: 20px 0;
                box-shadow: 0 10px 15px rgba(0,0,0,0.1);
                z-index: 999;
            }
            .nav-links.active {
                right: 0;
            }
            .nav-links li {
                margin: 15px 0;
            }
            .header-container {
                flex-wrap: wrap;
            }
            .footer-content {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 576px) {
            h1 { font-size: 2.2rem; }
            h2 { font-size: 1.8rem; }
            .lead { font-size: 1.2rem; }
            .container { padding: 0 15px; }
            .interactive-module { padding: 20px; }
        }