/**
 * Scroll Reveal Animation Component
 *
 * Elements fade up into view when scrolled to using IntersectionObserver.
 * Supports stagger effect via --reveal-index custom property.
 */

/* Base state: invisible and shifted down */
[data-scroll-reveal] {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
  transition-delay: calc(var(--reveal-index, 0) * 0.1s);
}

/* Visible state: fade in and slide up */
[data-scroll-reveal].visible {
  opacity: 1;
  transform: translateY(0);
}

/* Accessibility: instant reveal for reduced motion */
@media (prefers-reduced-motion: reduce) {
  [data-scroll-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }
}