/**
 * TundraFox Dashboard — WCAG 2.1 AA accessibility utilities.
 *
 * Patterns mirrored from frontend/webmail/css/accessibility.css for consistency.
 */

/* Skip link — hidden until focused */
.skip-link {
  position: absolute;
  top: -40px;
  left: var(--spacing-4);
  background: var(--color-primary);
  color: var(--color-white);
  padding: var(--spacing-2) var(--spacing-4);
  border-radius: var(--radius-md);
  text-decoration: none;
  font-weight: var(--font-weight-medium);
  z-index: 100;
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: var(--spacing-2);
  outline: 3px solid var(--color-accent);
  outline-offset: 2px;
}

/* Visually hidden but accessible to screen readers */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Focus indicators */
*:focus-visible {
  outline: 3px solid var(--color-primary-light);
  outline-offset: 2px;
  box-shadow: 0 0 0 5px rgba(45, 138, 184, 0.25);
}

button:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 3px solid var(--color-primary-light);
  outline-offset: 2px;
}

/* Touch target minimum (WCAG 2.5.5) */
button,
a,
input[type='checkbox'],
input[type='radio'],
.nav-list a {
  min-height: 44px;
}

/* Reduced motion respect */
@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;
  }
}

/* High-contrast mode */
@media (prefers-contrast: more) {
  :root {
    --color-gray-200: #999999;
    --color-gray-300: #777777;
  }
}

/* Print posture */
@media print {
  .app-shell__header,
  .app-shell__sidebar,
  .toast-region {
    display: none !important;
  }
  .app-shell__main {
    padding: 0;
  }
}