/* === Botón flotante WhatsApp animado === */
#chat-dxn-btn {
  position: fixed;
  bottom: 75px;
  right: 13px;
  z-index: 9999;
  background: #25D366;
  color: #fff;
  width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 34px;
  border-radius: 50%;
  box-shadow: 0 4px 15px rgba(0,0,0,0.25);
  cursor: pointer;
  transition: all .3s ease-in-out;
  animation: whatsapp-pulse 2s infinite;
}

#chat-dxn-btn:hover {
  transform: scale(1.1);
}

#chat-dxn-menu {
  display: none;
  position: fixed;
  bottom: 130px;
  right: 20px;
  z-index: 9998;
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.25);
  overflow: hidden;
  font-size: 15px;
  width: 220px;
}

#chat-dxn-menu a {
  display: block;
  padding: 12px 16px;
  color: #333;
  text-decoration: none;
  border-bottom: 1px solid #eee;
}

#chat-dxn-menu a:last-child {
  border-bottom: none;
}

#chat-dxn-menu a:hover {
  background: #f5f5f5;
}

/* =========================
   ANIMACIÓN PULSO
========================= */
@keyframes whatsapp-pulse {
  0% { box-shadow: 0 0 0 0 rgba(37,211,102,.7); }
  70% { box-shadow: 0 0 0 15px rgba(37,211,102,0); }
  100% { box-shadow: 0 0 0 0 rgba(37,211,102,0); }
}