:root {
        --primary: #002357;
        --secondary: #0055a5;
        --accent: #94C11F;
        --text: #333;
        --white: #ffffff;
    }
    body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; margin: 0; color: var(--text); line-height: 1.6; }
    header { background: var(--white); padding: 1rem 5%; display: flex; align-items: center; justify-content: space-between; border-bottom: 2px solid var(--primary); }
    .logo { width: 200px; }
    nav ul { display: flex; list-style: none; gap: 15px; margin: 0; padding: 0; }
    nav a { text-decoration: none; color: var(--primary); font-weight: bold; font-size: 0.9rem; }
    .hero { height: 500px; background: linear-gradient(rgba(0,35,87,0.7), rgba(0,35,87,0.7)), url('/assets/18-q1xbg89fo85ozc5u3lzp354ie0u7qv1cihrho0ixq8.jpg'); background-size: cover; background-position: center; display: flex; align-items: center; justify-content: center; color: var(--white); text-align: center; }
    .container { max-width: 1200px; margin: 40px auto; padding: 0 20px; }
    .grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 30px; }
    .card { padding: 20px; border: 1px solid #eee; box-shadow: 0 4px 6px rgba(0,0,0,0.1); border-radius: 8px; }
    .btn { display: inline-block; background: var(--accent); color: var(--white); padding: 10px 20px; text-decoration: none; border-radius: 5px; font-weight: bold; }
    footer { background: var(--primary); color: var(--white); text-align: center; padding: 40px; margin-top: 50px; }
    @media (max-width: 768px) { nav { display: none; } }