.whatsapp-float {
  position: fixed;
  bottom: 25px;
  right: 25px;
  background: #25D366;
  color: white;
  padding: 14px 18px;
  border-radius: 50px;
  font-weight: 600;
  text-decoration: none;
  box-shadow: 0 5px 15px rgba(0,0,0,0.3);
}