* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        
        :root {
            --primary-color: #1a237e;
            --secondary-color: #64ffda;
            --accent-color: #00bcd4;
            --text-color: #333;
            --light-color: #f5f5f5;
            --dark-color: #212121;
            --transition: all 0.3s ease;
        }
        
        body {
            background-color: var(--light-color);
            color: var(--text-color);
            line-height: 1.6;
        }
        
        header {
            background-color: var(--primary-color);
            color: white;
            padding: 1rem 5%;
            display: flex;
            justify-content: space-between;
            align-items: center;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
        }
        
        .logo {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--secondary-color);
            text-decoration: none;
            letter-spacing: 1px;
        }
        
        .nav-links {
            display: flex;
            list-style: none;
        }
        
        .nav-links li {
            margin-left: 2rem;
        }
        
        .nav-links a {
            color: white;
            text-decoration: none;
            font-weight: 500;
            transition: var(--transition);
            position: relative;
        }
        
        .nav-links a:hover {
            color: var(--secondary-color);
        }
        
        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--secondary-color);
            transition: var(--transition);
        }
        
        .nav-links a:hover::after {
            width: 100%;
        }
        
        main {
            padding: 3rem 5%;
            max-width: 1000px;
            margin: 0 auto;
        }
        
        h1 {
            color: var(--primary-color);
            margin-bottom: 2rem;
            font-size: 2.5rem;
        }
        
        h2 {
            color: var(--primary-color);
            margin: 2rem 0 1rem;
            font-size: 1.8rem;
        }
        
        p {
            margin-bottom: 1rem;
        }
        
        ul {
            margin-left: 2rem;
            margin-bottom: 1rem;
        }
        
        li {
            margin-bottom: 0.5rem;
        }
        
        footer {
            background-color: var(--dark-color);
            color: white;
            padding: 3rem 5%;
        }
        
        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        
        .footer-column h3 {
            color: var(--secondary-color);
            margin-bottom: 1rem;
            font-size: 1.2rem;
        }
        
        .footer-column ul {
            list-style: none;
            margin-left: 0;
        }
        
        .footer-column ul li {
            margin-bottom: 0.5rem;
        }
        
        .footer-column ul li a {
            color: white;
            text-decoration: none;
            transition: var(--transition);
        }
        
        .footer-column ul li a:hover {
            color: var(--secondary-color);
        }
        
        .footer-bottom {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid rgba(255,255,255,0.1);
            font-size: 0.9rem;
        }
        
        @media (max-width: 768px) {
            .nav-links {
                flex-direction: column;
                gap: 1rem;
            }
            
            .nav-links li {
                margin: 0;
            }
        }