.whatsapp-button {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background-color: #25D366;
    color: white;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 30px;
    text-decoration: none;
    box-shadow: 2px 2px 6px rgba(0,0,0,0.4);
    z-index: 1000;
    transition: all 0.3s ease;
}

.whatsapp-button:hover {
    transform: scale(1.1);
    color: white;
    background-color: #128C7E;
}