:root {
            --color-primary: #1a1f2e;
            --color-secondary: #2d3748;
            --color-accent: #e53e3e;
            --color-accent-light: #fc8181;
            --color-text: #e2e8f0;
            --color-text-muted: #a0aec0;
            --color-background: #0f1419;
            --color-card: #1e242c;
            --color-border: #4a5568;
            --font-main: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            --font-heading: 'Arial Black', 'Segoe UI', sans-serif;
            --spacing-xs: 0.5rem;
            --spacing-sm: 1rem;
            --spacing-md: 2rem;
            --spacing-lg: 4rem;
            --border-radius: 8px;
            --transition: all 0.3s ease;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-main);
            background-color: var(--color-background);
            color: var(--color-text);
            line-height: 1.6;
            overflow-x: hidden;
        }
        a {
            color: var(--color-accent-light);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--color-accent);
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 var(--spacing-sm);
        }
        .site-header {
            background-color: var(--color-primary);
            border-bottom: 2px solid var(--color-accent);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: var(--spacing-sm) 0;
        }
        .my-logo {
            font-family: var(--font-heading);
            font-size: 1.8rem;
            font-weight: 900;
            color: #fff;
            text-transform: uppercase;
            letter-spacing: 1px;
            background: linear-gradient(90deg, #e53e3e, #f6ad55);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .my-logo:hover {
            text-decoration: none;
            opacity: 0.9;
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: var(--spacing-md);
        }
        .main-nav a {
            color: var(--color-text);
            font-weight: 600;
            padding: var(--spacing-xs) var(--spacing-sm);
            border-radius: var(--border-radius);
        }
        .main-nav a:hover,
        .main-nav a:focus {
            background-color: var(--color-secondary);
            text-decoration: none;
            color: var(--color-accent-light);
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: var(--color-text);
            font-size: 1.8rem;
            cursor: pointer;
            padding: var(--spacing-xs);
        }
        .breadcrumb {
            background-color: var(--color-secondary);
            padding: var(--spacing-sm);
            font-size: 0.9rem;
            margin-bottom: var(--spacing-md);
            border-radius: 0 0 var(--border-radius) var(--border-radius);
        }
        .breadcrumb a {
            color: var(--color-text-muted);
        }
        .breadcrumb a:hover {
            color: var(--color-text);
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: var(--spacing-lg);
            padding: var(--spacing-md) 0;
        }
        .article-content {
            background-color: var(--color-card);
            padding: var(--spacing-lg);
            border-radius: var(--border-radius);
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
        }
        .sidebar {
            background-color: var(--color-card);
            padding: var(--spacing-md);
            border-radius: var(--border-radius);
            align-self: start;
            position: sticky;
            top: 100px;
        }
        h1, h2, h3, h4 {
            font-family: var(--font-heading);
            color: #fff;
            margin-top: var(--spacing-md);
            margin-bottom: var(--spacing-sm);
            line-height: 1.3;
        }
        h1 {
            font-size: 3rem;
            border-bottom: 3px solid var(--color-accent);
            padding-bottom: var(--spacing-sm);
            margin-top: 0;
        }
        h2 {
            font-size: 2.2rem;
            color: var(--color-accent-light);
        }
        h3 {
            font-size: 1.8rem;
        }
        h4 {
            font-size: 1.4rem;
            color: var(--color-text-muted);
        }
        p {
            margin-bottom: var(--spacing-sm);
            text-align: justify;
        }
        .lead {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--color-accent-light);
            margin-bottom: var(--spacing-md);
        }
        .highlight-box {
            background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
            border-left: 5px solid var(--color-accent);
            padding: var(--spacing-md);
            margin: var(--spacing-md) 0;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
        }
        .image-caption {
            text-align: center;
            font-style: italic;
            color: var(--color-text-muted);
            margin-top: var(--spacing-xs);
            font-size: 0.9rem;
        }
        .interactive-module {
            background-color: var(--color-primary);
            border: 1px solid var(--color-border);
            border-radius: var(--border-radius);
            padding: var(--spacing-md);
            margin: var(--spacing-md) 0;
        }
        .module-title {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
            color: var(--color-accent);
            margin-bottom: var(--spacing-sm);
        }
        .module-title i {
            font-size: 1.5rem;
        }
        form {
            display: flex;
            flex-direction: column;
            gap: var(--spacing-sm);
        }
        input, textarea, select {
            padding: var(--spacing-sm);
            background-color: var(--color-background);
            border: 1px solid var(--color-border);
            border-radius: var(--border-radius);
            color: var(--color-text);
            font-family: inherit;
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: var(--color-accent);
        }
        button, .btn {
            background: linear-gradient(90deg, var(--color-accent), #c53030);
            color: white;
            border: none;
            padding: var(--spacing-sm) var(--spacing-md);
            border-radius: var(--border-radius);
            font-weight: bold;
            cursor: pointer;
            transition: var(--transition);
            text-align: center;
        }
        button:hover, .btn:hover {
            background: linear-gradient(90deg, #c53030, var(--color-accent));
            text-decoration: none;
            color: white;
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(229, 62, 62, 0.4);
        }
        .rating-stars {
            display: flex;
            gap: 5px;
            margin: var(--spacing-sm) 0;
        }
        .star {
            color: var(--color-text-muted);
            font-size: 1.5rem;
            cursor: pointer;
            transition: var(--transition);
        }
        .star:hover,
        .star.active {
            color: gold;
        }
        .site-footer {
            background-color: var(--color-primary);
            border-top: 2px solid var(--color-accent);
            padding: var(--spacing-lg) 0;
            margin-top: var(--spacing-lg);
        }
        .footer-container {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: var(--spacing-md);
        }
        .friend-links {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: var(--spacing-md);
            margin: var(--spacing-md) 0;
        }
        friend-link {
            display: inline-block;
            background-color: var(--color-secondary);
            padding: var(--spacing-xs) var(--spacing-sm);
            border-radius: var(--border-radius);
            border: 1px solid transparent;
        }
        friend-link:hover {
            border-color: var(--color-accent);
            background-color: var(--color-primary);
        }
        .copyright {
            color: var(--color-text-muted);
            font-size: 0.9rem;
            text-align: center;
            border-top: 1px solid var(--color-border);
            padding-top: var(--spacing-sm);
            width: 100%;
        }
        @media (max-width: 992px) {
            .main-content {
                grid-template-columns: 1fr;
                gap: var(--spacing-md);
            }
            .sidebar {
                position: static;
            }
            h1 {
                font-size: 2.5rem;
            }
            h2 {
                font-size: 2rem;
            }
        }
        @media (max-width: 768px) {
            .header-container {
                flex-wrap: wrap;
            }
            .main-nav {
                order: 3;
                width: 100%;
                display: none;
                margin-top: var(--spacing-sm);
            }
            .main-nav.active {
                display: block;
            }
            .main-nav ul {
                flex-direction: column;
                gap: var(--spacing-xs);
            }
            .hamburger {
                display: block;
            }
            .article-content {
                padding: var(--spacing-md);
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.7rem;
            }
            h3 {
                font-size: 1.5rem;
            }
        }