/* ===========================================
   Visibility & Accessibility Utilities
   ===========================================
   Screen reader utilities and visibility helpers.
   =========================================== */

@layer utilities {

/* ===========================================
   Screen Reader Only
   Visually hidden but accessible to screen readers
   =========================================== */

.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;
}

/* Becomes visible on focus (for skip links) */
.sr-only.focusable:focus,
.sr-only.focusable:active {
  position: static;
  width: auto;
  height: auto;
  padding: inherit;
  margin: 0;
  overflow: visible;
  clip: auto;
  white-space: normal;
}

/* ===========================================
   Skip Link
   First focusable element for keyboard users
   =========================================== */

.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-4);
  z-index: 9999;
  padding: var(--space-2) var(--space-4);
  background-color: var(--color-primary-900);
  color: white;
  text-decoration: none;
  border-radius: var(--radius-md);
  font-weight: var(--font-medium);
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: var(--space-4);
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
}

/* ===========================================
   Display Utilities
   =========================================== */

.hidden,
[hidden] {
  display: none !important;
}

.block {
  display: block;
}

.inline {
  display: inline;
}

.inline-block {
  display: inline-block;
}

.flex {
  display: flex;
}

.inline-flex {
  display: inline-flex;
}

.grid {
  display: grid;
}

/* ===========================================
   Visibility Utilities
   =========================================== */

.visible {
  visibility: visible;
}

.invisible {
  visibility: hidden;
}

/* ===========================================
   Opacity Utilities
   =========================================== */

.opacity-0 {
  opacity: 0;
}

.opacity-50 {
  opacity: 0.5;
}

.opacity-100 {
  opacity: 1;
}

/* ===========================================
   Responsive Display
   =========================================== */

/* Hide on mobile */
@media (max-width: 639px) {
  .sm\:hidden {
    display: none !important;
  }
}

/* Show only on mobile */
@media (min-width: 640px) {
  .sm\:block {
    display: block;
  }

  .sm\:flex {
    display: flex;
  }

  .mobile-only {
    display: none !important;
  }
}

/* Hide on tablet and below */
@media (max-width: 1023px) {
  .lg\:hidden {
    display: none !important;
  }
}

/* Show only on desktop */
@media (min-width: 1024px) {
  .lg\:block {
    display: block;
  }

  .lg\:flex {
    display: flex;
  }
}

/* ===========================================
   Print Utilities
   =========================================== */

@media print {
  .print\:hidden {
    display: none !important;
  }

  .print\:block {
    display: block !important;
  }
}

/* ===========================================
   Reduced Motion
   =========================================== */

@media (prefers-reduced-motion: reduce) {
  .motion-safe\:animate {
    animation: none !important;
  }

  .motion-safe\:transition {
    transition: none !important;
  }
}

/* ===========================================
   Pointer Events
   =========================================== */

.pointer-events-none {
  pointer-events: none;
}

.pointer-events-auto {
  pointer-events: auto;
}

/* ===========================================
   Overflow
   =========================================== */

.overflow-hidden {
  overflow: hidden;
}

.overflow-auto {
  overflow: auto;
}

.overflow-scroll {
  overflow: scroll;
}

.overflow-x-auto {
  overflow-x: auto;
}

.overflow-y-auto {
  overflow-y: auto;
}

/* ===========================================
   Text Truncation
   =========================================== */

.truncate {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.line-clamp-2 {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.line-clamp-3 {
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

} /* End @layer utilities */