.wb-whatsapp-button {
    position: fixed;
    background: #25D366;
    border-radius: 50%;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 10px rgba(0,0,0,0.3);
    z-index: 9999;
    transition: transform 0.2s, background 0.3s;
}
.wb-whatsapp-button:hover {
    transform: scale(1.1);
    background: #20b858;
}
.wb-whatsapp-icon {
    width: 34px;
    height: 34px;
}