/* Accessibility Enhancements for WCAG 2.1 AA Compliance */

/* Screen Reader Only Content */
.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;
}

/* Show on focus for skip links */
.sr-only.focus\:not-sr-only:focus {
  position: absolute;
  width: auto;
  height: auto;
  padding: 0.5rem 1rem;
  margin: 0;
  overflow: visible;
  clip: auto;
  white-space: normal;
}

/* Enhanced Focus Indicators - WCAG 2.1 AA Compliant */
/* Minimum 2px outline with 3:1 contrast ratio */
*:focus {
  outline: 2px solid hsl(var(--p));
  outline-offset: 2px;
}

/* Button focus states */
.btn:focus,
.btn:focus-visible {
  outline: 2px solid hsl(var(--p));
  outline-offset: 2px;
  box-shadow: 0 0 0 4px hsla(var(--p), 0.2);
}

/* Link focus states */
a:focus,
a:focus-visible {
  outline: 2px solid hsl(var(--p));
  outline-offset: 2px;
  text-decoration: underline;
  text-decoration-thickness: 2px;
}

/* Input focus states */
input:focus,
textarea:focus,
select:focus {
  outline: 2px solid hsl(var(--p));
  outline-offset: 0;
  border-color: hsl(var(--p));
  box-shadow: 0 0 0 3px hsla(var(--p), 0.2);
}

/* Card and interactive element focus */
.card:focus-within {
  outline: 2px solid hsl(var(--p));
  outline-offset: 2px;
}

/* Dropdown and menu focus */
.dropdown-content:focus-within,
.menu li:focus-within {
  outline: 2px solid hsl(var(--p));
  outline-offset: 2px;
}

/* Progress bar accessibility */
progress:focus {
  outline: 2px solid hsl(var(--p));
  outline-offset: 2px;
}

/* Checkbox and radio focus */
input[type="checkbox"]:focus,
input[type="radio"]:focus {
  outline: 2px solid hsl(var(--p));
  outline-offset: 2px;
  box-shadow: 0 0 0 4px hsla(var(--p), 0.2);
}

/* Modal and dialog focus trap */
dialog:focus,
[role="dialog"]:focus {
  outline: none;
}

dialog *:focus,
[role="dialog"] *:focus {
  outline: 2px solid hsl(var(--p));
  outline-offset: 2px;
}

/* Skip link styling */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: hsl(var(--p));
  color: hsl(var(--pc));
  padding: 8px 16px;
  text-decoration: none;
  border-radius: 0 0 4px 0;
  z-index: 100;
  font-weight: 600;
}

.skip-link:focus {
  top: 0;
  outline: 2px solid hsl(var(--pf));
  outline-offset: 2px;
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
  *:focus {
    outline-width: 3px;
    outline-offset: 3px;
  }
  
  .btn:focus,
  a:focus,
  input:focus,
  textarea:focus,
  select:focus {
    outline-width: 3px;
  }
}

/* Reduced Motion Support */
@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;
  }
}

/* Focus visible polyfill for better keyboard navigation */
.js-focus-visible :focus:not(.focus-visible) {
  outline: none;
}

.js-focus-visible .focus-visible {
  outline: 2px solid hsl(var(--p));
  outline-offset: 2px;
}

/* Ensure sufficient color contrast for text */
.text-base-content\/50 {
  /* Ensure at least 4.5:1 contrast ratio */
  opacity: 0.6;
}

.text-base-content\/60 {
  opacity: 0.7;
}

.text-base-content\/70 {
  opacity: 0.8;
}

/* Badge focus states */
.badge:focus {
  outline: 2px solid hsl(var(--p));
  outline-offset: 2px;
}

/* Avatar focus states */
.avatar:focus,
.avatar:focus-within {
  outline: 2px solid hsl(var(--p));
  outline-offset: 2px;
  border-radius: 9999px;
}

/* Stat card focus */
.stat:focus-within {
  outline: 2px solid hsl(var(--p));
  outline-offset: 2px;
  border-radius: 0.5rem;
}

/* Alert focus for screen readers */
[role="alert"],
[role="status"] {
  position: relative;
}

/* Ensure drawer toggle is keyboard accessible */
.drawer-toggle:focus + .drawer-content .btn {
  outline: 2px solid hsl(var(--p));
  outline-offset: 2px;
}

/* Navigation focus improvements */
nav a:focus,
nav button:focus {
  outline: 2px solid hsl(var(--p));
  outline-offset: 2px;
  background-color: hsla(var(--p), 0.1);
}

/* Sidebar menu focus */
.menu li > *:focus {
  outline: 2px solid hsl(var(--p));
  outline-offset: 2px;
  background-color: hsla(var(--p), 0.1);
}

/* Card interactive elements */
.card a:focus,
.card button:focus {
  outline: 2px solid hsl(var(--p));
  outline-offset: 2px;
}

/* Ensure progress bars are announced */
progress[aria-label],
progress[aria-labelledby] {
  /* Styling handled by DaisyUI, just ensure semantic markup */
}

/* Live region styling */
[aria-live="polite"],
[aria-live="assertive"] {
  position: relative;
}

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

/* Focus within for composite widgets */
.dropdown:focus-within .dropdown-content {
  display: block;
}

/* Keyboard navigation indicators */
[tabindex="0"]:focus,
[tabindex="-1"]:focus {
  outline: 2px solid hsl(var(--p));
  outline-offset: 2px;
}

/* Ensure sufficient touch target size (minimum 44x44px) */
@media (pointer: coarse) {
  .btn,
  a,
  button,
  input[type="checkbox"],
  input[type="radio"] {
    min-height: 44px;
    min-width: 44px;
  }
  
  .btn-xs {
    min-height: 36px;
    min-width: 36px;
  }
}