/* Définition des couleurs */
        :root {
            --color-primary: #001f40; /* Bleu Marine */
            --color-secondary: #ffffff; /* Blanc */
            --color-accent: #007bff; /* Bleu standard pour les liens */
            --max-width: 1200px;
        }

        /* Réinitialisation et base */
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        body {
            font-family: 'Inter', sans-serif;
            line-height: 1.6;
            background-color: var(--color-primary);
            color: var(--color-secondary);
            transition: all 0.3s ease;
        }

        a {
            text-decoration: none;
            color: var(--color-secondary);
            transition: color 0.3s;
        }

        a:hover {
            color: var(--color-accent);
        }

        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        /* Header / Navigation */
        .header {
            background-color: var(--color-primary);
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            border-bottom: 2px solid var(--color-secondary);
        }

        .navbar {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--color-secondary); 
        }

        .nav-links {
            display: flex;
            gap: 2rem;
            list-style: none;
            align-items: center;
        }

        .nav-links li a {
            font-weight: 500;
            padding: 0.5rem 0;
            border-bottom: 2px solid transparent;
        }

        .nav-links li a:hover, .nav-links li a.active {
            color: var(--color-accent);
            border-bottom: 2px solid var(--color-accent);
        }

        /* Sélecteur de langue */
        .lang-toggle {
            cursor: pointer;
            padding: 0.5rem 1rem;
            background-color: var(--color-secondary);
            color: var(--color-primary);
            border: none;
            border-radius: 4px;
            font-weight: 600;
            transition: background-color 0.3s;
        }

        .lang-toggle:hover {
            background-color: #e0e0e0;
        }

        /* Menu Mobile */
        .menu-toggle {
            display: none;
            flex-direction: column;
            cursor: pointer;
            gap: 5px;
        }

        .bar {
            width: 25px;
            height: 3px;
            background-color: var(--color-secondary);
            transition: all 0.3s ease-in-out;
            border-radius: 2px;
        }

        @media (max-width: 900px) {
            .nav-links {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background-color: var(--color-primary);
                padding: 1rem 0;
                border-top: 1px solid var(--color-secondary);
                box-shadow: 0 10px 20px rgba(0, 0, 0, 0.5);
                text-align: center;
            }

            .nav-links.active {
                display: flex;
            }

            .menu-toggle {
                display: flex;
            }
        }

        /* Contenu Principal */
        #main-content {
            min-height: 70vh;
            padding-bottom: 5rem;
        }

        .page-section {
            padding: 5rem 0;
            animation: fadeIn 0.5s ease-in-out;
        }

        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }

        .section-title {
            font-size: 3rem;
            font-weight: 700;
            text-align: center;
            margin-bottom: 1rem;
            color: var(--color-secondary);
        }

        .section-subtitle {
            font-size: 1.25rem;
            text-align: center;
            margin-bottom: 3rem;
            color: #ccc;
        }

        /* Éléments Spécifiques */
        .grid-3 {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            margin-top: 2rem;
        }

        .card {
            background-color: rgba(255, 255, 255, 0.05);
            padding: 2rem;
            border-radius: 8px;
            border-left: 5px solid var(--color-accent);
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
            transition: transform 0.3s;
        }

        .card:hover {
            transform: translateY(-5px);
        }

        .card i {
            font-size: 2rem;
            color: var(--color-accent);
            margin-bottom: 1rem;
        }

        .card h3 {
            font-size: 1.5rem;
            margin-bottom: 0.5rem;
        }

        /* Hero Home */
        .hero {
            text-align: center;
            padding: 8rem 0;
            background: linear-gradient(135deg, var(--color-primary) 0%, #003366 100%);
        }

        .hero h1 {
            font-size: clamp(2.5rem, 6vw, 4.5rem);
            margin-bottom: 1rem;
        }

        .hero p {
            font-size: clamp(1rem, 2vw, 1.5rem);
            margin-bottom: 2rem;
            color: #aaa;
        }

        /* Boutons */
        .btn {
            display: inline-block;
            padding: 0.75rem 2rem;
            border-radius: 6px;
            font-weight: 600;
            transition: all 0.3s;
            text-transform: uppercase;
            letter-spacing: 1px;
            border: 2px solid var(--color-secondary);
        }

        .btn-primary {
            background-color: var(--color-secondary);
            color: var(--color-primary);
        }

        .btn-primary:hover {
            background-color: var(--color-accent);
            color: var(--color-secondary);
            border-color: var(--color-accent);
            transform: scale(1.05);
        }

        /* Contact Section */
        .contact-info-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 2rem;
        }

        .info-block {
            padding: 1.5rem;
            background-color: rgba(255, 255, 255, 0.03);
            border-radius: 8px;
        }

        .info-block i {
            color: var(--color-accent);
            margin-right: 10px;
        }
        
        /* Footer */
        .footer {
            background-color: var(--color-primary);
            border-top: 2px solid var(--color-secondary);
            padding: 3rem 0 1.5rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
        }

        .footer-logo-block {
            font-size: 1.5rem;
            font-weight: 800;
            margin-bottom: 1rem;
        }

        .footer h4 {
            color: var(--color-secondary);
            margin-bottom: 1rem;
            border-bottom: 1px solid rgba(255, 255, 255, 0.2);
            padding-bottom: 0.5rem;
        }

        .footer ul {
            list-style: none;
        }

        .footer ul li {
            margin-bottom: 0.5rem;
        }

        .footer-bottom {
            text-align: center;
            margin-top: 3rem;
            padding-top: 1.5rem;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 0.85rem;
            color: #aaa;
        }