/* Bootstrap 5.3 made .text-muted resolve to --bs-secondary-color, which is a dark
   value under the default light theme. On the dark footer that renders text at
   rgba(33,37,41,.75) against a rgb(33,37,41) background - invisible. Rebinding the
   variable on the dark footer matches what data-bs-theme="dark" yields there. */
footer.bg-dark {
  --bs-secondary-color: rgba(173, 181, 189, 0.75);
}

footer.bg-dark a.text-muted:hover,
footer.bg-dark a.text-muted:focus {
  --bs-secondary-color: rgb(222, 226, 230);
}