/* =====================================================
   Accessibility Features
   ===================================================== */

/* Accessibility Controls */
.accessibility-controls {
  position: fixed;
  top: var(--spacing-4);
  right: var(--spacing-4);
  display: flex;
  gap: var(--spacing-2);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  padding: var(--spacing-2);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  z-index: var(--z-fixed);
  border: 1px solid var(--color-secondary-200);
}

.accessibility-btn {
  background: transparent;
  border: 1px solid var(--color-secondary-300);
  border-radius: var(--radius-md);
  width: 40px;
  height: 40px;
  cursor: pointer;
  font-size: var(--font-size-sm);
  color: var(--color-text);
  transition: var(--transition-all);
  display: flex;
  align-items: center;
  justify-content: center;
}

.accessibility-btn:hover {
  background: var(--color-primary-50);
  border-color: var(--color-primary-300);
}

.accessibility-btn:focus {
  outline: 2px solid var(--color-primary-500);
  outline-offset: 2px;
}

.accessibility-btn[aria-pressed='true'] {
  background: var(--color-primary);
  color: white;
  border-color: var(--color-primary);
}

/* 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: 0;
}

/* Enhanced Focus Indicators */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: 2px solid var(--color-primary-500);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
  .accessibility-controls {
    background: white;
    border: 2px solid black;
  }

  .accessibility-btn {
    border: 2px solid currentColor;
  }
}

/* Reduced Motion Support */
body.reduced-motion *,
body.reduced-motion *::before,
body.reduced-motion *::after {
  animation-duration: 0.01ms !important;
  animation-iteration-count: 1 !important;
  transition-duration: 0.01ms !important;
  scroll-behavior: auto !important;
}

@media (prefers-reduced-motion: reduce) {
  .accessibility-btn {
    transition: none;
  }
}