:root[data-reduce-motion="true"] * {
  scroll-behavior: auto !important;
  transition: none !important;
  animation: none !important;
}

:root[data-contrast="high"] {
  /* Make boundaries + secondary text materially stronger in both light/dark themes. */
  --border: color-mix(in srgb, var(--text) 58%, var(--bg));
  --muted: color-mix(in srgb, var(--text) 88%, var(--bg));
  --shadow: 0 0 0 1px var(--border);
}

:root[data-contrast="high"] a {
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 0.18em;
}