body {
            background: linear-gradient(to bottom, #1a1f2b, #2a3b5d); /* Dégradé bleu foncé */
            color: white;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: start;
            overflow-y: auto; /* Permet un léger scroll si nécessaire */
        }
        .header {
            text-align: center;
            padding: 5px 0;
            background-color: rgba(255, 255, 255, 0.1);
            box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
            width: 100%;
            flex-shrink: 0;
        }
        .logo {
            width: 100%;
            max-width: 120px; /* Réduction supplémentaire sur mobile */
            height: auto;
        }
        .container-fluid {
            flex-grow: 1;
            display: flex;
            align-items: center;
            justify-content: center;
            padding-top: 10px;
            padding-bottom: 30px; /* Retour d'une marge en bas pour éviter l'effet de recouvrement */
        }
        .icon-box {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            width: 140px;
            height: 140px;
            background-color: rgba(255, 255, 255, 0.1);
            border-radius: 10px;
            box-shadow: 0 4px 6px rgba(0, 0, 0, 0.2);
            margin: 10px;
            cursor: pointer;
            transition: transform 0.2s ease-in-out;
        }
        .icon-box:hover {
            transform: scale(1.05);
        }
        .icon-box img {
            width: 80px;
            height: 80px;
        }

        @media (min-width: 1024px) {
            .icon-box {
                width: 200px;
                height: 200px;
            }
            .icon-box img {
                width: 120px;
                height: 120px;
            }
        }