[data-back-to-top] {
    position: fixed;
    right: 20px;
    bottom: 20px;
    z-index: 50;
    display: flex;
    width: 44px;
    height: 44px;
    align-items: center;
    justify-content: center;
    border: 0;
    border-radius: 0;
    background: var(--color-footer-bg, #56483e);
    color: var(--color-footer-color, #d8d0c6);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 180ms ease, background-color 150ms ease, color 150ms ease, visibility 180ms;
}

[data-back-to-top].is-visible {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

[data-back-to-top]:hover {
    background: var(--color-main-primary, #c4623a);
    color: #fff;
}

[data-back-to-top]:focus-visible {
    outline: 3px solid #fff;
    outline-offset: 3px;
}

@media (prefers-reduced-motion: reduce) {
    [data-back-to-top] {
        transition: none;
    }
}