.whatsapp-float {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: #25D366;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background-image: url('../assets/whatsapp_icon.png');
    background-size: 60%;
    background-repeat: no-repeat;
    background-position: center;
    box-shadow: 0 2px 10px rgba(0,0,0,0.2);
    animation: pulse 1.5s infinite;
    z-index: 999;
  }