.whatsapp-float {
    position: fixed;
    right: 1.25rem;
    bottom: 1.25rem;
    z-index: 80;
    display: inline-flex;
    width: 3.5rem;
    height: 3.5rem;
    align-items: center;
    justify-content: center;
    color: #fff;
    background: #19a463;
    border: 3px solid #fff;
    border-radius: 50%;
    box-shadow: 0 10px 26px rgba(8, 35, 30, .28);
    font-size: 1.65rem;
    text-decoration: none;
    transition: transform .2s ease, background-color .2s ease, box-shadow .2s ease;
}

.whatsapp-float:hover,
.whatsapp-float:focus-visible {
    color: #fff;
    background: #12834f;
    box-shadow: 0 14px 30px rgba(8, 35, 30, .36);
    transform: translateY(-3px);
}

.whatsapp-float:focus-visible {
    outline: 3px solid #f2a36e;
    outline-offset: 3px;
}

@media (max-width: 720px) {
    .whatsapp-float {
        right: 1rem;
        bottom: 1rem;
        width: 3.15rem;
        height: 3.15rem;
        font-size: 1.45rem;
    }
}