.whatsapp-button {
    background-color: #25D366 !important;
    color: #ffffff; /* White */
    border: none;
    padding: 10px 20px;
    font-size: 16px;
    cursor: pointer;
    display: inline-block;
    margin-top: 10px;
    border-radius: 6px !important;
}
.whatsapp-button:hover {
    background-color: #1DA362; /* Darker green */
}