.whatsapp-flutuante {
    position: fixed;
    right: 20px;
    bottom: 20px;
    z-index: 1040;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background-color: #25D366;
    color: #fff;
    box-shadow: 0 4px 12px rgba(0, 0, 0, .3);
    transition: transform .15s ease-in-out;
}

.whatsapp-flutuante:hover,
.whatsapp-flutuante:focus {
    color: #fff;
    transform: scale(1.08);
}

.whatsapp-flutuante svg {
    width: 30px;
    height: 30px;
}

@media (max-width: 575.98px) {
    .whatsapp-flutuante {
        right: 16px;
        bottom: 16px;
        width: 52px;
        height: 52px;
    }

    .whatsapp-flutuante svg {
        width: 28px;
        height: 28px;
    }
}