.whatsapp {
    position: fixed;
    top: 100px;
    right: 20px;
    z-index: 999;
  }
  @media (max-width:991.89px){
  .whatsapp {
    top: 20px;
    right: 100px;
  }
  }
  .whatsapp-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: #25D366;
    color: #fff;
    box-shadow: 0 4px 12px rgba(0,0,0,.25);
    transition: transform .2s ease, background .2s ease;
  }
  .whatsapp-btn:hover,
  .whatsapp-btn:focus-visible {
    background: #1ebe5b;
    transform: scale(1.08);
    color: #fff;
  }
  .whatsapp-btn:focus-visible {
    outline: 3px solid #128C7E;
    outline-offset: 3px;
  }