/* ============================================
   UTILITY CLASSES & ACCESSIBILITY
   ============================================ */

/* UTILITY CLASSES */
.hidden {
  display: none !important;
  opacity: 0 !important;
  pointer-events: none !important;
}

.active {
  display: block;
}

.chip {
  display: inline-block;
  padding: 4px 8px;
  background: rgba(0, 212, 255, 0.1);
  border: 1px solid var(--color-primary);
  border-radius: 12px;
  font-size: 10px;
  letter-spacing: 0.08em;
  color: var(--color-primary);
}

/* ACCESSIBILITY */
button:focus,
.scenario-btn:focus,
#tle-input:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

button:focus:not(:focus-visible) {
  outline: none;
}

button:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Skip to content for accessibility */
.skip-to-content {
  position: absolute;
  top: -100px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10000;
  padding: var(--space-md) var(--space-lg);
  background: var(--color-primary);
  color: #000;
  font-family: var(--font-mono);
  font-weight: 700;
  text-decoration: none;
  border-radius: 4px;
  transition: top 0.3s ease;
}

.skip-to-content:focus {
  top: 10px;
}

/* 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;
  }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  :root {
    --color-border: #ffffff;
    --color-border-bright: #ffffff;
  }
}