.whatsapp-float {
    position: fixed;
    bottom: 55px;
    right: 20px;
    background-color: #25d366;
    color: #FFF;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    text-align: center;
    font-size: 30px;
    box-shadow: 2px 2px 3px rgba(0,0,0,0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    z-index: 1000;
    transition: all 0.3s ease;
    animation: pulse 2s infinite;
  }

  .whatsapp-float:hover {
    background-color: #128C7E;
    color: #FFF;
    transform: scale(1.1);
    animation: none;
  }

  .whatsapp-float i {
    margin-top: 0;
  }

  @keyframes pulse {
    0% {
      box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.5);
    }
    70% {
      box-shadow: 0 0 0 10px rgba(37, 211, 102, 0);
    }
    100% {
      box-shadow: 0 0 0 0 rgba(37, 211, 102, 0);
    }
  }

  @media screen and (max-width: 767px) {
    .whatsapp-float {
      width: 50px;
      height: 50px;
      font-size: 25px;
      bottom: 15px;
      right: 15px;
    }
  }