:root {
            --primary-bg: #1A1A1A;
            --secondary-bg: #2C2C2C;
            --accent-color: #007BFF;
            --text-color: #E0E0E0;
            --highlight-color: #1E90FF;
            --border-color: #444444;
        }

        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            transition: color 0.3s ease, background-color 0.3s ease;
        }

        body {
            background-color: var(--primary-bg);
            color: var(--text-color);
            line-height: 1.6;
        }
        
        a {
            color: var(--highlight-color);
            text-decoration: none;
        }

        a:hover {
            text-decoration: underline;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        
        .main-header {
            position: sticky;
            top: 0;
            left: 0;
            width: 100%;
            background: rgba(26, 26, 26, 0.9);
            backdrop-filter: blur(5px);
            z-index: 1000;
            padding: 1rem 0;
            border-bottom: 1px solid var(--border-color);
        }

        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .logo {
            font-size: 1.8rem;
            font-weight: bold;
            color: var(--highlight-color);
            text-transform: uppercase;
        }

        .nav-menu {
            display: flex;
            list-style: none;
            gap: 2rem;
        }

        .nav-menu a {
            font-weight: 500;
            padding: 0.5rem 1rem;
            border-radius: 5px;
            transition: background-color 0.3s ease;
        }

        .nav-menu a:hover {
            background-color: var(--secondary-bg);
            text-decoration: none;
        }

        .burger-menu {
            display: none;
            cursor: pointer;
            flex-direction: column;
            gap: 5px;
        }

        .burger-menu span {
            display: block;
            width: 25px;
            height: 3px;
            background-color: var(--text-color);
            transition: transform 0.3s ease, opacity 0.3s ease;
            margin: 4px 0;
        }

        @media (max-width: 768px) {
            .nav-menu {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background: var(--secondary-bg);
                border-top: 1px solid var(--border-color);
                padding: 1rem 0;
                text-align: center;
            }

            .nav-menu.open {
                display: flex;
            }

            .burger-menu {
                display: flex;
            }
        }

        .content-section {
            padding: 100px 0 50px 0;
        }

        .content-section h1 {
            font-size: 2.5rem;
            margin-bottom: 20px;
            text-align: center;
            color: var(--highlight-color);
        }

        .content-section h2 {
            font-size: 1.5rem;
            margin-top: 30px;
            margin-bottom: 15px;
        }

        .content-section p, .content-section ul {
            margin-bottom: 15px;
            opacity: 0.8;
        }

        .content-section ul {
            padding-left: 20px;
        }

        .content-section li {
            margin-bottom: 5px;
        }

        .main-footer {
            background-color: #000;
            color: #aaa;
            padding: 50px 0;
            border-top: 1px solid #333;
            text-align: center;
        }
        
        .footer-content {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 20px;
        }
        
        .footer-links {
            list-style: none;
            display: flex;
            gap: 20px;
        }
        
        .footer-links a {
            color: #aaa;
            transition: color 0.3s ease;
        }
        
        .footer-links a:hover {
            color: var(--highlight-color);
        }