/* Accessibility — skip-nav, focus, font scaling, high contrast, reduced motion */

/* Font scaling via custom property */
:root {
  --wl-font-scale: 1;
}
html {
  font-size: calc(1rem * var(--wl-font-scale));
}

/* Skip navigation */
.wl-skip-nav {
  position: absolute;
  top: -100%;
  left: 1rem;
  z-index: 1000;
  padding: 0.75rem 1.5rem;
  background: var(--color-primary);
  color: #fff;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.875rem;
  text-decoration: none;
  transition: top 150ms ease;
}
.wl-skip-nav:focus {
  top: 0.75rem;
  color: #fff;
}

/* Focus-visible rings for all interactive elements */
:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
}
/* Remove default outline — focus-visible handles it */
:focus:not(:focus-visible) {
  outline: none;
}

/* Accessibility toolbar */
.wl-a11y-toolbar {
  position: relative;
}
.wl-a11y-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  cursor: pointer;
  padding: 0.25rem 0.5rem;
  font-size: 1.125rem;
  color: var(--color-text-muted);
  line-height: 1;
  transition:
    background var(--transition),
    border-color var(--transition);
}
.wl-a11y-btn:hover {
  background: var(--color-surface);
  border-color: var(--color-text-muted);
}
.wl-a11y-dropdown {
  display: none;
  position: absolute;
  top: calc(100% + 0.5rem);
  right: 0;
  min-width: 14rem;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 0.75rem;
  box-shadow: var(--shadow-md);
  z-index: 150;
}
.wl-a11y-dropdown.open {
  display: block;
}
.wl-a11y-dropdown label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.5rem 0.25rem;
  font-size: 0.8125rem;
  color: var(--color-text);
  cursor: pointer;
  border-bottom: 1px solid var(--color-border);
}
.wl-a11y-dropdown label:last-child {
  border-bottom: none;
}
.wl-a11y-dropdown .wl-a11y-group-label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.5rem 0.25rem 0.25rem;
  cursor: default;
  border-bottom: none;
}
.wl-a11y-scale-btns {
  display: flex;
  gap: 0.375rem;
}
.wl-a11y-scale-btns button {
  padding: 0.25rem 0.625rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-bg);
  cursor: pointer;
  font-size: 0.75rem;
  color: var(--color-text);
  transition:
    background var(--transition),
    border-color var(--transition);
}
.wl-a11y-scale-btns button:hover {
  background: var(--color-surface);
}
.wl-a11y-scale-btns button.active {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}
/* Toggle switch */
.wl-toggle {
  position: relative;
  width: 2.25rem;
  height: 1.25rem;
  background: var(--color-border);
  border-radius: 9999px;
  border: none;
  cursor: pointer;
  transition: background var(--transition);
  flex-shrink: 0;
}
.wl-toggle::after {
  content: "";
  position: absolute;
  top: 2px;
  left: 2px;
  width: 1rem;
  height: 1rem;
  background: #fff;
  border-radius: 50%;
  transition: transform var(--transition);
}
.wl-toggle[aria-checked="true"] {
  background: var(--color-primary);
}
.wl-toggle[aria-checked="true"]::after {
  transform: translateX(1rem);
}

/* High contrast overrides */
.wl-high-contrast {
  --color-text: #000000;
  --color-text-muted: #333333;
  --color-bg: #ffffff;
  --color-surface: #f0f0f0;
  --color-border: #666666;
}
.wl-high-contrast[data-theme="dark"] {
  --color-text: #ffffff;
  --color-text-muted: #cccccc;
  --color-bg: #000000;
  --color-surface: #1a1a1a;
  --color-border: #888888;
}

/* Reduced motion — both media query and manual class */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms;
    animation-iteration-count: 1;
    transition-duration: 0.01ms;
    scroll-behavior: auto;
  }
}
.wl-reduced-motion *,
.wl-reduced-motion *::before,
.wl-reduced-motion *::after {
  animation-duration: 0.01ms;
  animation-iteration-count: 1;
  transition-duration: 0.01ms;
  scroll-behavior: auto;
}

/* Live region for screen reader announcements */
.wl-sr-live {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}