/* ==========================================================================
   Accessibility (WCAG 2.1 AA)
   Loaded after all theme CSS. Single source of truth for focus styles,
   skip link, screen-reader utilities, and motion preferences.
   ========================================================================== */

/* --- Focus indicators (2.4.7 Focus Visible) --- */
:focus-visible {
  outline: 3px solid #0066CC;
  outline-offset: 2px;
}

.form-control:focus-visible,
.form-select:focus-visible {
  outline: 3px solid rgba(0, 102, 204, 0.5);
  outline-offset: 0;
}

.btn:focus-visible,
.nav-link:focus-visible,
.dropdown-item:focus-visible,
.accordion-button:focus-visible,
.page-link:focus-visible {
  outline: 3px solid #0066CC;
  outline-offset: 2px;
}

/* --- Skip link (2.4.1 Bypass Blocks) --- */
.skip-link {
  position: absolute;
  top: -100%;
  left: 16px;
  z-index: 100000;
  padding: 12px 24px;
  background: #0066CC;
  color: #fff;
  font-weight: bold;
  text-decoration: none;
  border-radius: 0 0 4px 4px;
  transition: top 0.15s ease;
}
.skip-link:focus {
  top: 0;
  outline: 3px solid #fff;
  outline-offset: 2px;
}

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

/* --- Reduced motion (2.3.3 Animation) --- */
@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;
  }
}

/* --- Error indication: not just color (1.4.1 Use of Color) --- */
.was-validated .form-control:invalid,
.was-validated .form-select:invalid {
  border-width: 2px;
}