/* ==========================================================================
   Scroll-reveal + entrance animations.
   Pure CSS transitions driven by a .is-visible class toggled in main.js
   via IntersectionObserver — no animation library.
   ========================================================================== */

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity var(--duration-base) var(--ease-editorial),
              transform var(--duration-base) var(--ease-editorial);
}

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

/* Stagger children of a revealed group (e.g. card grids, hero actions) */
.reveal-group.is-visible > * {
  transition-delay: calc(var(--stagger-index, 0) * 90ms);
}

/* Hero gets a slightly larger, immediate entrance instead of waiting on scroll */
.hero .reveal {
  transform: translateY(32px);
}

/* No JS / reduced motion: content is always visible, never stuck at opacity 0 */
.no-js .reveal,
.reveal.reveal--static {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}