.btn-whatsapp {
    display: none;
    background: #25D366;
    color: #ffffff;
    padding: 10px 14px;
    border-radius: 6px;
    font-size: 15px;
    text-decoration: none;
    border: none;
    cursor: pointer;
    margin-top: 15px;
}

.btn-whatsapp i {
    margin-right: 6px;
}

/* Solo visible en móvil */
@media (max-width: 480px) {
    .btn-whatsapp {
        display: inline-block;
    }
}