@media (max-width: 767px) {
  .btn-call-now-custom {
    position: fixed !important;
    bottom: 0 !important;
    left: 0 !important;
    width: 100% !important;
    background-color: #25D366 !important; /* Vert WhatsApp */
    color: #ffffff !important;
    text-align: center !important;
    padding: 15px !important;
    font-size: 18px !important;
    font-weight: bold !important;
    text-decoration: none !important;
    z-index: 99999 !important; /* Force l'affichage par-dessus Bootstrap 3 */
    display: block !important;
  }
}
@media (min-width: 768px) {
  .btn-call-now-custom { 
    display: none !important; /* Cache le bouton sur ordinateur */
  }
}