* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: #333;
        }
        
        header {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            padding: 2rem 0;
            text-align: center;
        }
        
        nav {
            background-color: #222;
            padding: 1rem;
            position: sticky;
            top: 0;
        }
        
        nav a {
            color: white;
            margin: 0 1.5rem;
            text-decoration: none;
            font-weight: 500;
        }
        
        nav a:hover {
            color: #667eea;
        }
        
        .hero {
            background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 600"><rect fill="%23667eea" width="1200" height="600"/></svg>');
            color: white;
            padding: 4rem 2rem;
            text-align: center;
        }
        
        .hero h1 {
            font-size: 3.5rem;
            margin-bottom: 1rem;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
        }
        
        .hero p {
            font-size: 1.3rem;
            margin-bottom: 2rem;
        }
        
        .cta-button {
            display: inline-block;
            background-color: #764ba2;
            color: white;
            padding: 1rem 2rem;
            text-decoration: none;
            border-radius: 5px;
            font-weight: bold;
            transition: background-color 0.3s;
        }
        
        .cta-button:hover {
            background-color: #667eea;
        }
        
        section {
            padding: 3rem 2rem;
            max-width: 1200px;
            margin: 0 auto;
        }
        
        .section-title {
            font-size: 2.5rem;
            margin-bottom: 2rem;
            color: #667eea;
        }
        
        .grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
        }
        
        .card {
            background: #f4f4f4;
            padding: 1.5rem;
            border-radius: 8px;
            box-shadow: 0 4px 6px rgba(0,0,0,0.1);
        }
        
        .card h3 {
            color: #667eea;
            margin-bottom: 1rem;
        }
        
        footer {
            background-color: #222;
            color: white;
            text-align: center;
            padding: 2rem;
        }