.whatsapp-float
 {
    position: fixed;
    bottom: 80px;
    right: 24px;
    z-index: 9999;
    border-radius: 50%;
    width: 70px;
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
    transition: box-shadow 0.2s;
}

.whatsapp-float:hover {
  box-shadow: 0 4px 16px rgba(0,0,0,0.3);
  background: #20ba5a;
}