body {
    background: url('/images/Fond_d-ecran.jpeg') no-repeat center center fixed;
    background-size: cover;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    color: white;
    margin: 0;
    padding: 0;
}
.header {
    display: flex;
    align-items: center;
}
.header a {
    text-decoration: none;
    padding: 8px 15px;
    background-color: rgb(9, 58, 148);
    color: white;
    border-radius: 8px;
    font-size: 14px;
    margin: -10px;
}
.header a:last-child { 
    margin-left: auto; 
    margin-right: 0; 
}
.header a:hover {
    background-color:rgb(6, 75, 213);
}
.header img {
    width: 150px; /* Réduire la largeur du logo */
    height: 150px; /* Réduire la hauteur du logo */
}
.container {
    background: rgba(0, 0, 0, 0.7);
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0px 0px 10px rgba(255, 255, 255, 0.3);
    max-width: 750px;
    width: 100%;
}
.mb-3 {
    margin-top: 30px;
}
.form-control {
    background: transparent !important;
    border: 1px solid white;
    color: white;
    caret-color: white;
}
.form-control::placeholder {
    color: rgba(255, 255, 255, 0.7);
}
.form-control:focus {
    background: transparent !important;
    color: white;
    border-color: rgb(9, 58, 148);
    box-shadow: none;
}
.btn-primary {
    margin-top: 30px;
    width: 100%;
    background: rgb(9, 58, 148);
    border: none;
}
.btn-primary:hover {
    background: rgb(6, 75, 213);
}
.message {
    margin-top: 15px;
    font-weight: bold;
}

@media (max-width: 768px) {
    .header img {
        width: 100px;
        height: 100px;
    }

    .menu-container .menu .image-button {
        width: 200px;
        height: 200px;
    }
}

@media (max-width: 480px) {
    .header img {
        width: 80px;
        height: 80px;
    }

    .menu-container .menu .image-button {
        width: 150px;
        height: 150px;
    }
}