/* Style pour le message d'alerte */
    #alert {
        display: none;
        position: fixed;
        top: 20px;
        left: 50%;
        transform: translateX(-50%);
        padding: 20px 40px;
        border-radius: 8px;
        font-size: 24px;
        font-weight: bold;
        text-align: center;
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
        z-index: 1000;
        max-width: 80%;
        animation: fadeIn 0.5s ease-in-out;
    }
    
    /* Animation d'apparition */
    @keyframes fadeIn {
        from { opacity: 0; top: 0; }
        to { opacity: 1; top: 20px; }
    }
    
    /* Style pour le succès */
    .alert-success {
        color: #28a745;
        background-color: #d4edda;
        border: 2px solid #c3e6cb;
    }
    
    /* Style pour l'erreur */
    .alert-error {
        color: #dc3545;
        background-color: #f8d7da;
        border: 2px solid #f5c6cb;
    }
    
    /* Style des icônes */
    .alert i {
        margin-right: 12px;
        font-size: 28px;
    }