.site-footer .block-system-powered-by-block {
  --darkmode-color: white;
}

.site-footer .block-system-powered-by-block a {
  color: light-dark(var(--color--white), var(--darkmode-color));
}

.site-footer .block-system-powered-by-block svg path {
  fill: light-dark(var(--color--white), var(--darkmode-color));
}