/* Apple HIG–aligned accessibility & interaction (SpeechGradebook parity) */

.skip-link {
  position: absolute;
  top: -100px;
  left: var(--space-4, 1rem);
  z-index: 10001;
  padding: var(--space-3, 0.75rem) var(--space-4, 1rem);
  background: var(--color-primary, #1e3a5f);
  color: #fff;
  text-decoration: none;
  font-weight: var(--weight-semibold, 600);
  border-radius: var(--radius-md, 8px);
  transition: top var(--motion-fast, 0.15s) ease;
}

.skip-link:focus {
  top: var(--space-4, 1rem);
  outline: 2px solid var(--color-accent, #e8a838);
  outline-offset: 2px;
}

button:focus-visible,
.btn:focus-visible,
a:focus-visible,
.nav-link:focus-visible,
.icon-btn:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: 2px solid var(--focus-ring, var(--color-primary));
  outline-offset: var(--focus-ring-offset, 2px);
}

.btn,
.nav-link,
.icon-btn,
.source-tab {
  min-height: 44px;
}

.icon-btn {
  min-width: 44px;
}

@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;
  }

  .auth-loading-spinner {
    animation: none;
    border-top-color: currentColor;
  }
}