/* ===================================
   ACCESSIBILITY ENHANCEMENTS
   =================================== */

/* ===================================
   ENHANCED FOCUS INDICATORS
   =================================== */

/* Global focus styles for better visibility */
*:focus {
  outline: none;
}

/* Enhanced focus indicators for interactive elements */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible,
[tabindex]:focus-visible {
  outline: 3px solid var(--color-primary-purple);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
  box-shadow: 0 0 0 1px var(--color-pure-white);
}

/* Skip link completely hidden */
.skip-link {
  display: none !important;
  visibility: hidden !important;
}

/* Navigation focus enhancements */
.nav-link:focus-visible,
.mobile-nav-link:focus-visible {
  outline: 3px solid var(--color-primary-purple);
  outline-offset: 2px;
  background-color: rgba(107, 70, 193, 0.1);
  border-radius: var(--radius-sm);
}

.mobile-menu-toggle:focus-visible {
  outline: 3px solid var(--color-primary-purple);
  outline-offset: 2px;
  background-color: rgba(107, 70, 193, 0.1);
}

/* Logo focus indicator */
.logo:focus-visible {
  outline: 3px solid var(--color-primary-purple);
  outline-offset: 4px;
  border-radius: var(--radius-sm);
}

/* Button focus enhancements */
.cta-button:focus-visible,
.form-submit-btn:focus-visible {
  outline: 3px solid var(--color-light-purple);
  outline-offset: 3px;
  box-shadow: 0 0 0 1px var(--color-pure-white), 0 8px 25px rgba(107, 70, 193, 0.4);
}

/* Form element focus enhancements */
.form-input:focus-visible,
.form-textarea:focus-visible {
  outline: 3px solid var(--color-primary-purple);
  outline-offset: 2px;
  border-color: var(--color-primary-purple);
  box-shadow: 0 0 0 1px var(--color-pure-white), 0 0 0 4px rgba(107, 70, 193, 0.2);
}

/* Footer link focus enhancements */
.footer-link:focus-visible {
  outline: 3px solid var(--color-primary-purple);
  outline-offset: 2px;
  background-color: rgba(107, 70, 193, 0.1);
  border-radius: var(--radius-sm);
  padding: var(--space-1) var(--space-2);
}

/* ===================================
   KEYBOARD NAVIGATION ENHANCEMENTS
   =================================== */

/* Focus trap for mobile menu */
.mobile-nav[aria-hidden="false"] {
  /* Ensure mobile menu is focusable when open */
  visibility: visible;
}

.mobile-nav[aria-hidden="true"] {
  /* Hide mobile menu from keyboard navigation when closed */
  visibility: hidden;
}

/* Enhanced tab order indicators */
.nav-link[tabindex="0"],
.mobile-nav-link[tabindex="0"],
.cta-button[tabindex="0"],
.form-input[tabindex="0"],
.form-textarea[tabindex="0"],
.form-submit-btn[tabindex="0"] {
  /* Ensure proper tab order */
  position: relative;
}

/* Visual indicator for keyboard users */
body.keyboard-navigation *:focus-visible {
  animation: focusPulse 0.3s ease-in-out;
}

@keyframes focusPulse {
  0% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.02);
  }
  100% {
    transform: scale(1);
  }
}

/* ===================================
   SCREEN READER ENHANCEMENTS
   =================================== */

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

/* Screen reader only text that becomes visible on focus */
.sr-only-focusable:focus {
  position: static;
  width: auto;
  height: auto;
  padding: var(--space-2);
  margin: 0;
  overflow: visible;
  clip: auto;
  white-space: normal;
  background-color: var(--color-primary-purple);
  color: var(--color-pure-white);
  border-radius: var(--radius-sm);
  z-index: var(--z-tooltip);
}

/* Enhanced ARIA live regions */
[aria-live="polite"],
[aria-live="assertive"] {
  /* Ensure live regions are positioned for screen readers */
  position: relative;
}

/* Status messages for screen readers */
.form-status[role="status"],
.error-message[role="alert"] {
  /* Ensure status messages are announced */
  position: relative;
}

/* ===================================
   HIGH CONTRAST MODE SUPPORT
   =================================== */

@media (prefers-contrast: high) {
  /* Enhanced contrast for focus indicators */
  *:focus-visible {
    outline: 4px solid;
    outline-color: Highlight;
    outline-offset: 2px;
  }
  
  /* High contrast button styles */
  .cta-button,
  .form-submit-btn {
    border: 3px solid;
    font-weight: var(--font-weight-bold);
  }
  
  /* High contrast form elements */
  .form-input,
  .form-textarea {
    border: 3px solid;
  }
  
  /* High contrast navigation */
  .nav-link,
  .mobile-nav-link {
    border: 2px solid transparent;
  }
  
  .nav-link:hover,
  .nav-link:focus,
  .mobile-nav-link:hover,
  .mobile-nav-link:focus {
    border-color: currentColor;
    background-color: Canvas;
    color: CanvasText;
  }
}

/* ===================================
   REDUCED MOTION SUPPORT
   =================================== */

@media (prefers-reduced-motion: reduce) {
  /* Disable animations for users who prefer reduced motion */
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  
  /* Remove focus pulse animation */
  body.keyboard-navigation *:focus-visible {
    animation: none;
  }
  
  /* Remove hover transforms */
  .cta-button:hover,
  .form-submit-btn:hover {
    transform: none;
  }
}

/* ===================================
   TOUCH TARGET ENHANCEMENTS
   =================================== */

/* Ensure minimum touch target size (44x44px) */
.nav-link,
.mobile-nav-link,
.mobile-menu-toggle,
.cta-button,
.form-submit-btn,
.footer-link {
  min-width: 44px;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-2) var(--space-3);
}

/* Specific adjustments for smaller elements */
.dice-decoration[role="img"] {
  min-width: 32px;
  min-height: 32px;
}

/* ===================================
   KEYBOARD NAVIGATION HELPERS
   =================================== */

/* Focus management for modal/overlay states */
body.modal-open {
  overflow: hidden;
}

body.modal-open .mobile-nav {
  /* Ensure mobile menu is in focus flow when open */
  position: fixed;
  top: 0;
  right: 0;
  z-index: var(--z-modal);
}

/* Focus indicators for card components */
.event-details-card:focus-within,
.event-description-card:focus-within,
.faq-category:focus-within {
  outline: 2px solid var(--color-primary-purple);
  outline-offset: 2px;
  border-radius: var(--radius-lg);
}

/* Enhanced focus for interactive dice decorations */
.dice-decoration[tabindex="0"]:focus-visible {
  outline: 3px solid var(--color-primary-purple);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* ===================================
   PRINT ACCESSIBILITY
   =================================== */

@media print {
  /* Ensure focus indicators are visible in print */
  *:focus {
    outline: 2px solid black !important;
  }
  
  /* Hide skip links in print */
  .skip-link {
    display: none;
  }
  
  /* Ensure sufficient contrast in print */
  .nav-link,
  .footer-link {
    color: black !important;
    text-decoration: underline;
  }
}

/* ===================================
   BROWSER-SPECIFIC ENHANCEMENTS
   =================================== */

/* Firefox specific focus enhancements */
@-moz-document url-prefix() {
  *:focus-visible {
    outline: 3px solid var(--color-primary-purple);
    outline-offset: 2px;
  }
}

/* Safari specific focus enhancements */
@supports (-webkit-appearance: none) {
  *:focus-visible {
    outline: 3px solid var(--color-primary-purple);
    outline-offset: 2px;
  }
}

/* ===================================
   FORM ACCESSIBILITY ENHANCEMENTS
   =================================== */

/* Fieldset styling for better form organization */
.form-fieldset {
  border: none;
  margin: 0;
  padding: 0;
}

.form-fieldset legend {
  padding: 0;
  margin-bottom: var(--space-4);
}

/* Enhanced form validation states */
.form-input[aria-invalid="true"],
.form-textarea[aria-invalid="true"] {
  border-color: #dc2626;
  box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.1);
}

.form-input[aria-invalid="false"]:valid,
.form-textarea[aria-invalid="false"]:valid {
  border-color: #16a34a;
}

/* Help text styling */
.form-group .sr-only {
  /* Ensure help text is available to screen readers */
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ===================================
   RESPONSIVE ACCESSIBILITY
   =================================== */

/* Mobile-specific accessibility enhancements */
@media (max-width: 767px) {
  /* Larger touch targets on mobile */
  .nav-link,
  .mobile-nav-link,
  .cta-button,
  .form-submit-btn {
    min-height: 48px;
    padding: var(--space-3) var(--space-4);
  }
  
  /* Enhanced mobile menu focus */
  .mobile-nav-link:focus-visible {
    background-color: rgba(107, 70, 193, 0.2);
    border-left: 4px solid var(--color-primary-purple);
  }
}

/* Tablet-specific accessibility enhancements */
@media (min-width: 768px) and (max-width: 1023px) {
  /* Balanced touch targets for tablet */
  .nav-link,
  .cta-button,
  .form-submit-btn {
    min-height: 46px;
  }
}

/* Desktop-specific accessibility enhancements */
@media (min-width: 1024px) {
  /* Standard touch targets for desktop */
  .nav-link,
  .cta-button,
  .form-submit-btn {
    min-height: 44px;
  }
  
  /* Enhanced hover states for desktop */
  .nav-link:hover:focus-visible,
  .cta-button:hover:focus-visible,
  .form-submit-btn:hover:focus-visible {
    outline-color: var(--color-light-purple);
  }
}