.message-box {
    border: 6px solid transparent; /* Largeur de la bordure : 6px */
    border-image: repeating-linear-gradient(45deg, #ffca2c 0, #ffca2c 4px, #212529 4px, #212529 8px) 6; /* Traits de 4px, jaune et gris */
    border-image-slice: 6;
    border-radius: 8px;
    background: #fff3cd; /* Fond clair du PHP */
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.2);
    padding: 15px;
    margin-bottom: 15px;
    max-width: 90%;
    width: 100%;
    font-family: 'Poppins', sans-serif;
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.message-box:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.2);
}

.message-box.dark-mode {
    border-image: repeating-linear-gradient(45deg, #3498db 0, #3498db 4px, #212529 4px, #212529 8px) 6; /* Traits de 4px, bleu et gris */
    background: #2c3e50; /* Fond sombre du PHP */
    color: #e1f5fe; /* Couleur de texte sombre du PHP */
}

.message-box .message-title {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.5rem;
    font-weight: 700;
    text-align: center;
    text-decoration: underline;
    color: #212529; /* Couleur du PHP */
    margin-bottom: 10px;
}

.message-box.dark-mode .message-title {
    color: #e1f5fe; /* Couleur sombre du PHP */
}

.message-box .message-text {
    font-size: 1.1rem;
    text-align: center;
    color: #212529; /* Couleur du PHP */
    margin: 0;
}

.message-box.dark-mode .message-text {
    color: #e1f5fe; /* Couleur sombre du PHP */
}

.message-box .close-btn {
    color: #0c5460;
    font-size: 1.2rem;
    opacity: 0.8;
}

.message-box.dark-mode .close-btn {
    color: #e1f5fe;
}