:root {
            --primary: #004720;
            --accent: #ffba00;
            --dark: #000301;
            --white: #ffffff;
            --grey: #3d4942;
        }
        * { box-sizing: border-box; }
        body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; margin: 0; color: var(--grey); line-height: 1.6; }
        
        header { background: var(--dark); padding: 1rem; color: var(--white); display: flex; justify-content: space-between; align-items: center; }
        .logo-box { width: 60px; height: 60px; background: linear-gradient(45deg, var(--primary), var(--accent)); display: flex; align-items: center; justify-content: center; font-weight: bold; border-radius: 5px; }
        
        nav ul { display: flex; list-style: none; gap: 15px; margin: 0; padding: 0; flex-wrap: wrap; }
        nav a { color: var(--white); text-decoration: none; font-size: 0.9rem; }
        
        .hero { height: 400px; display: flex; align-items: center; justify-content: center; background: #003919; color: var(--white); text-align: center; }
        
        .container { max-width: 1200px; margin: 0 auto; padding: 2rem; }
        .grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 2rem; }
        
        .card { padding: 1.5rem; border: 1px solid #ddd; border-radius: 8px; transition: 0.3s; }
        .card:hover { border-color: var(--primary); }
        
        footer { background: var(--dark); color: var(--white); text-align: center; padding: 3rem; margin-top: 2rem; }
        
        @media (max-width: 768px) {
            nav ul { flex-direction: column; align-items: center; }
            header { flex-direction: column; }
        }