/*
 * Accessibility overrides for WCAG 2.1 AA conformance (checked with pa11y).
 * See issue #133.
 */

/*
 * The search field's keyboard-shortcut hint used --pst-color-border (#d1d5da),
 * a 1.47:1 contrast ratio against the white form background. Use the muted
 * text colour, which clears 4.5:1 in both the light and dark themes.
 */
.bd-search .search-button__kbd-shortcut {
  color: var(--pst-color-text-muted);
}

/*
 * External links on odd ("zebra") table rows had a 4.38:1 contrast ratio: the
 * teal link colour sat on the grey --pst-color-surface (#f3f4f5). Lighten only
 * the zebra row background in light mode so links clear 4.5:1 without
 * restyling other surfaces.
 */
html[data-theme="light"] {
  --pst-color-table-row-zebra-low-bg: #f7f8f9;
}

@media (prefers-color-scheme: light) {
  html[data-theme="auto"] {
    --pst-color-table-row-zebra-low-bg: #f7f8f9;
  }
}