.book-version-footer {
    margin-top: 4rem;
    padding-top: 2rem;
    border-top: 1px solid var(--sidebar-bg);
    text-align: center;
    font-size: 0.85em;
    color: var(--fg);
    opacity: 0.6;
}

.book-version-footer p {
    margin: 0;
}