:root {
            --primary: #004c84;
            --secondary: #006bf4;
            --dark: #000000;
            --light: #f4f4f9;
            --accent: #007bff;
        }

        body {
            font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
            line-height: 1.6;
            margin: 0;
            color: #333;
            background-color: #fff;
        }

        header {
            background: var(--primary);
            color: white;
            padding: 1rem 5%;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .logo-box {
            width: 150px;
            height: 50px;
            background: white;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            color: var(--primary);
            border-radius: 4px;
        }

        nav {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            padding: 1rem 5%;
            background: var(--light);
            border-bottom: 2px solid var(--primary);
        }

        nav a {
            text-decoration: none;
            color: var(--primary);
            font-size: 0.9rem;
            padding: 5px 10px;
            border: 1px solid transparent;
        }

        nav a:hover {
            color: var(--secondary);
            border-bottom: 1px solid var(--secondary);
        }

        .hero {
            height: 300px;
            background-image: url('/assets/LNT-carrousel-1.jpg');
            background-size: cover;
            background-position: center;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
        }

        main {
            padding: 2rem 5%;
            max-width: 1200px;
            margin: auto;
        }

        .grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 20px;
        }

        .card {
            padding: 20px;
            border: 1px solid #ddd;
            border-radius: 8px;
            transition: transform 0.2s;
        }

        .card:hover {
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
        }

        footer {
            background: var(--dark);
            color: white;
            padding: 2rem 5%;
            text-align: center;
            margin-top: 3rem;
        }

        @media (max-width: 768px) {
            header { flex-direction: column; }
            nav { flex-direction: column; }
        }