:root {
            --primary: #0d487f;
            --accent: #1a73e8;
            --dark: #161616;
            --light: #f4f4f4;
            --font: 'Arial', sans-serif;
        }
        * { box-sizing: border-box; }
        body { font-family: var(--font); line-height: 1.6; color: #333; margin: 0; padding: 0; }
        header { background: #fff; padding: 1rem; display: flex; align-items: center; justify-content: space-between; border-bottom: 3px solid var(--primary); }
        .logo { width: 120px; }
        nav ul { display: flex; list-style: none; gap: 20px; }
        nav a { color: var(--primary); font-weight: bold; text-decoration: none; }
        .hero { background: var(--dark); color: #fff; padding: 4rem 1rem; text-align: center; }
        .container { max-width: 1000px; margin: 0 auto; padding: 2rem; }
        .grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 2rem; margin-top: 2rem; }
        .card { border: 1px solid #ddd; padding: 1rem; border-radius: 8px; box-shadow: 0 4px 6px rgba(0,0,0,0.1); }
        .card-img { width: 100%; height: 200px; background: #eee; display: flex; align-items: center; justify-content: center; margin-bottom: 1rem; border-radius: 4px; overflow: hidden; }
        footer { background: var(--dark); color: #fff; text-align: center; padding: 2rem; margin-top: 3rem; }
        @media (max-width: 768px) { nav { flex-direction: column; } .grid { grid-template-columns: 1fr; } }