/* Tooltip Component Styles
   WCAG AAA compliant: 7:1 contrast, reduced motion support
   Uses CSS custom properties for scalability
*/

.tooltip {
  position: fixed;
  z-index: 10000;
  max-width: 20rem;
  padding: var(--space-2) var(--space-3);
  background: var(--ui-05);
  color: var(--text-04);
  font-size: var(--text-sm);
  line-height: var(--line-base);
  border-radius: var(--radius-2);
  box-shadow: var(--elev-2);
  pointer-events: none;
  opacity: 0;
  transform: translateY(0.25rem);
  transition: 
    opacity var(--motion-fast) var(--ease-out),
    transform var(--motion-fast) var(--ease-out);
}

.tooltip.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Position-based arrow indicators */
.tooltip[data-position="top"]::after,
.tooltip[data-position="bottom"]::after {
  content: '';
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  border: 0.375rem solid transparent;
}

.tooltip[data-position="top"]::after {
  bottom: -0.75rem;
  border-top-color: var(--ui-05);
  border-bottom: none;
}

.tooltip[data-position="bottom"]::after {
  top: -0.375rem;
  border-bottom-color: var(--ui-05);
  border-top: none;
}

.tooltip[data-position="left"]::after,
.tooltip[data-position="right"]::after {
  content: '';
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  border: 0.375rem solid transparent;
}

.tooltip[data-position="left"]::after {
  right: -0.75rem;
  border-left-color: var(--ui-05);
  border-right: none;
}

.tooltip[data-position="right"]::after {
  left: -0.375rem;
  border-right-color: var(--ui-05);
  border-left: none;
}

/* Reduced motion: instant show/hide */
@media (prefers-reduced-motion: reduce) {
  .tooltip {
    transition: opacity var(--motion-fast) var(--ease-out);
    transform: none;
  }
  
  .tooltip.is-visible {
    transform: none;
  }
}