:root {
            --primary: #00b2ff;
            --dark: #222;
            --light: #f4f4f4;
            --white: #ffffff;
        }
        body { font-family: Arial, sans-serif; margin: 0; color: var(--dark); line-height: 1.6; }
        header { padding: 20px; border-bottom: 2px solid var(--light); display: flex; justify-content: space-between; align-items: center; }
        nav a { margin: 0 10px; text-decoration: none; color: var(--dark); font-weight: bold; }
        .hero { background: #e0e0e0; min-height: 400px; display: flex; align-items: center; justify-content: center; text-align: center; color: var(--dark); position: relative; }
        .hero-img { width: 100%; height: 100%; object-fit: cover; position: absolute; top: 0; left: 0; filter: brightness(0.6); }
        .container { max-width: 1000px; margin: auto; padding: 40px 20px; }
        .grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 20px; }
        .card { border: 1px solid #ddd; padding: 15px; border-radius: 8px; box-shadow: 0 4px 6px rgba(0,0,0,0.1); }
        .card img { width: 100%; height: 250px; object-fit: cover; border-radius: 4px; }
        footer { background: var(--dark); color: var(--white); text-align: center; padding: 20px; margin-top: 40px; }
        @media (max-width: 768px) { header { flex-direction: column; } nav { margin-top: 15px; } }