/* ============================================
   Accessibility Styles - WCAG AA/AAA Compliance
   Material Design, Apple HIG, Microsoft Fluent
   ============================================ */

/* Focus Indicators - WCAG 2.4.7 */
*:focus-visible {
  outline: 2px solid #3b82f6;
  outline-offset: 2px;
  border-radius: 4px;
}

/* High Contrast Mode Support - Microsoft Fluent */
@media (prefers-contrast: high) {
  *:focus-visible {
    outline: 3px solid currentColor;
    outline-offset: 3px;
  }
  
  /* Strengthen borders */
  button, a, input, select, textarea {
    border: 2px solid currentColor !important;
  }
  
  /* Remove background gradients */
  .bg-gradient-to-r,
  .bg-gradient-to-l,
  .bg-gradient-to-t,
  .bg-gradient-to-b {
    background: transparent !important;
  }
}

/* Reduced Motion Support - WCAG 2.3.3 */
@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;
  }
}

/* Screen Reader Only - WCAG 1.3.1 */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

.sr-only:focus {
  position: static;
  width: auto;
  height: auto;
  padding: inherit;
  margin: inherit;
  overflow: visible;
  clip: auto;
  white-space: normal;
}

/* Skip Link - WCAG 2.4.1 */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: #000;
  color: #fff;
  padding: 8px;
  text-decoration: none;
  z-index: 100;
}

.skip-link:focus {
  top: 0;
}

/* Touch Target Minimum Size - Material Design (48x48dp) */
button,
a,
input[type="button"],
input[type="submit"],
input[type="reset"],
[role="button"],
[role="link"] {
  min-width: 48px;
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

/* Exception for inline text links */
a:not([role="button"]):not(.btn) {
  min-width: auto;
  min-height: auto;
  display: inline;
}

/* Ensure text remains readable at 200% zoom - WCAG 1.4.4 */
html {
  font-size: 100%; /* Respect user's browser settings */
}

/* Dark Mode Support - Apple HIG */
@media (prefers-color-scheme: dark) {
  /* Already implemented in Tailwind */
}

/* Forced Colors Mode - Windows High Contrast */
@media (forced-colors: active) {
  * {
    forced-color-adjust: auto;
  }
}