/**
 * Urban Chat Accessibility Shell CSS (Phase 52)
 * Namespace: uc-a11y-* only.
 */

.uc-a11y-skip-link {
  position: absolute;
  top: -48px;
  left: 0;
  background: var(--uc-chrome);
  color: var(--uc-text-on-primary);
  padding: 10px 16px;
  z-index: 100000;
  text-decoration: none;
  font-family: "Oswald", "Arial Narrow", sans-serif;
  font-size: 14px;
  font-weight: 600;
  border-radius: 0 0 6px 0;
  transition: top 0.15s ease;
}

.uc-a11y-skip-link:focus,
.uc-a11y-skip-link:focus-visible {
  top: 0;
  outline: 3px solid var(--uc-gold);
  outline-offset: 2px;
}

:root {
  --uc-a11y-focus-ring: var(--uc-primary);
  --uc-a11y-focus-ring-gold: #f5c518;
}

.uc-a11y-focus-ring:focus-visible,
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
[role="button"]:focus-visible,
[tabindex]:not([tabindex="-1"]):focus-visible {
  outline: 3px solid var(--uc-a11y-focus-ring);
  outline-offset: 2px;
}

.uc-a11y-sr-only,
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

@media (prefers-contrast: high) {
  .uc-a11y-focus-ring:focus-visible,
  a:focus-visible,
  button:focus-visible,
  input:focus-visible,
  select:focus-visible,
  textarea:focus-visible {
    outline: 4px solid currentColor;
    outline-offset: 3px;
  }
}

html {
  font-size: calc(100% * var(--uc-font-scale, 1));
}

#uc-a11y-announcer {
  position: absolute;
  left: -10000px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.uc-a11y-error {
  color: var(--uc-danger-text);
  font-size: 0.875rem;
  margin-top: 4px;
}