@media only screen and (max-width: 768px) {
    .header {
        height: auto;
        padding: 10px 0;
    }

    .nav {
        flex-direction: column;
    }

    .header-content {
        align-items: center;
    }

    .right-column, .left-column {
        width: 100%;
        float: none;
    }
}
@media only screen and (max-width: 768px) {
    .navbar-toggler {
        display: block;
        border: none;
        background: none;
        font-size: 24px;
        cursor: pointer;
    }
    .container-fluid {
        display: flex;
        flex-direction: column;
    }
    .header-content {
        display: flex;
        flex-direction: row;
    }

    .navbar-toggler-icon {
        color: #333; /* Couleur de l'icône */
    }

    .header {
        padding: 10px;
    }

    .nav {
        flex-direction: column;
        width: 100%;
    }

    .nav-link {
        padding: 10px;
        text-align: center;
        width: 100%;
        display: block;
    }

    .navbar {
        display: none;
    }

    .header-content {
        align-items: center;
        text-align: center;
    }

    .right-column, .left-column {
        width: 100%;
        float: none;
    }
}

/* Style pour les écrans plus grands où le burger menu n'est pas nécessaire */
@media only screen and (min-width: 769px) {
    .navbar-toggler {
        display: none;
    }
}