/* Bouton vers le chat */
.btn-chat {
    display: inline-block;
    background: #e67e22;
    color: white;
    text-decoration: none;
    padding: 12px 30px;
    border-radius: 40px;
    font-weight: bold;
    font-size: 1.2rem;
    transition: background 0.2s, transform 0.1s;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

.btn-chat:hover {
    background: #b45f1b;
    transform: scale(1.02);
}