.whatsapp-button {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 1000;
    background-color: #25d366;
    border-radius: 50%;
    width: 60px;
    height: 60px;
    text-align: center;
    box-shadow: 2px 2px 6px rgba(0,0,0,0.4);
    transition: all 0.3s ease;
}

.whatsapp-button:hover {
    transform: scale(1.1);
    box-shadow: 2px 2px 11px rgba(0,0,0,0.7);
}

.whatsapp-button i {
    color: white;
    font-size: 35px;
    line-height: 60px;
}