.sea-whatsapp-button {
    position: fixed;
    right: 22px;
    bottom: 22px;

    width: 58px;
    height: 58px;

    display: flex;
    align-items: center;
    justify-content: center;

    background: #25d366;
    border-radius: 50%;

    box-shadow: 0 6px 20px rgba(0, 0, 0, .22);

    z-index: 99999;

    transition:
        transform .18s ease,
        box-shadow .18s ease,
        background .18s ease;
}

.sea-whatsapp-button svg {
    width: 32px;
    height: 32px;
    fill: #fff;
}

.sea-whatsapp-button:hover {
    background: #20bd5a;
    transform: translateY(-2px) scale(1.04);
    box-shadow: 0 9px 24px rgba(0, 0, 0, .27);
}

.sea-whatsapp-button:focus-visible {
    outline: 3px solid rgba(37, 211, 102, .35);
    outline-offset: 4px;
}

@media (max-width: 768px) {
    .sea-whatsapp-button {
        right: 16px;
        bottom: 16px;
        width: 54px;
        height: 54px;
    }

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