/**
 * RoomStamp Accessibility Shell CSS
 * Injected by the accessibility compliance middleware on every HTML response.
 */

/* Skip link — visible only on keyboard focus */
.rs-a11y-skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: #000;
  color: #fff;
  padding: 8px 16px;
  z-index: 10000;
  text-decoration: none;
  font-family: system-ui, -apple-system, sans-serif;
  font-size: 14px;
  border-radius: 0 0 4px 0;
  transition: top 0.2s ease;
}
.rs-a11y-skip-link:focus {
  top: 0;
  outline: 3px solid #005fcc;
  outline-offset: 2px;
}

/* Focus rings that are always visible on keyboard */
.rs-focus-ring:focus-visible,
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 3px solid #005fcc;
  outline-offset: 2px;
}

/* Screen-reader 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;
}

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

/* High contrast preference */
@media (prefers-contrast: high) {
  .rs-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;
  }
}

/* Font scale support via CSS custom property */
html {
  font-size: calc(100% * var(--rs-font-scale, 1));
}

/* Ensure form error messages are visible */
.rs-a11y-error {
  color: #dc2626;
  font-size: 0.875rem;
  margin-top: 4px;
}

/* Visually hidden but accessible label fallback */
.rs-a11y-label {
  display: block;
  margin-bottom: 4px;
  font-size: 0.875rem;
  font-weight: 500;
}

/* ARIA live region container */
#rs-a11y-announcer {
  position: absolute;
  left: -10000px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}