:root {
            --primary: #007600;
            --secondary: #004a59;
            --light: #f4f4f4;
            --dark: #000;
            --white: #ffffff;
        }
        * { box-sizing: border-box; margin: 0; padding: 0; }
        body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif; line-height: 1.6; color: #333; background: #fff; }
        header { background: var(--white); padding: 1rem; display: flex; justify-content: space-between; align-items: center; border-bottom: 2px solid var(--primary); }
        .logo { max-height: 50px; }
        nav ul { display: flex; list-style: none; gap: 15px; }
        nav a { text-decoration: none; color: var(--dark); font-weight: bold; font-size: 0.9rem; }
        .hero { height: 400px; background: var(--secondary) url('/assets/SCat5b9JRpFtQlRwHO2cPDt4wlyvwQeBgOr7jvY3-300x300.jpg') center/cover; display: flex; align-items: center; justify-content: center; color: var(--white); text-align: center; }
        .container { max-width: 1200px; margin: 2rem auto; padding: 0 1rem; }
        .grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 20px; }
        .card { border: 1px solid #ddd; border-radius: 8px; padding: 1rem; transition: transform 0.2s; }
        .card:hover { transform: translateY(-5px); }
        .card img { width: 100%; height: 200px; object-fit: cover; border-radius: 4px; box-shadow: 0 2px 4px rgba(0,0,0,0.1); }
        footer { background: var(--dark); color: var(--white); padding: 2rem; text-align: center; margin-top: 3rem; }
        @media (max-width: 768px) { nav ul { flex-direction: column; } }