/**
 * Appsolute - Scroll Reveal & Entrance Animations
 * Replacing GSAP with pure CSS + IntersectionObserver
 */
:root {
  --anim-ease: cubic-bezier(0.16, 1, 0.3, 1);
  --anim-distance: 30px;
  --anim-duration: 1s;
  --anim-duration-stagger: 0.9s;
}

.scroll-reveal {
  opacity: 0;
  transform: translateY(var(--anim-distance));
  transition: opacity var(--anim-duration) var(--anim-ease), transform var(--anim-duration) var(--anim-ease);
  will-change: opacity, transform;
}

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

.scroll-reveal-stagger > * {
  opacity: 0;
  transform: translateY(var(--anim-distance));
  transition: opacity var(--anim-duration-stagger) var(--anim-ease), transform var(--anim-duration-stagger) var(--anim-ease);
  will-change: opacity, transform;
}

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

.scroll-reveal-stagger.is-visible > *:nth-child(1) { transition-delay: 0.05s; }
.scroll-reveal-stagger.is-visible > *:nth-child(2) { transition-delay: 0.18s; }
.scroll-reveal-stagger.is-visible > *:nth-child(3) { transition-delay: 0.31s; }
.scroll-reveal-stagger.is-visible > *:nth-child(4) { transition-delay: 0.44s; }
.scroll-reveal-stagger.is-visible > *:nth-child(5) { transition-delay: 0.57s; }
.scroll-reveal-stagger.is-visible > *:nth-child(6) { transition-delay: 0.7s; }
.scroll-reveal-stagger.is-visible > *:nth-child(7) { transition-delay: 0.83s; }
.scroll-reveal-stagger.is-visible > *:nth-child(8) { transition-delay: 0.96s; }

.stk-panel {
  opacity: 0.3;
  transition: opacity 0.6s var(--anim-ease);
}

.stk-panel--visible {
  opacity: 1;
}

.stk-tab {
  transition: all 0.3s var(--anim-ease);
}

@media (prefers-reduced-motion: reduce) {
  .page-overlay, .hero__block > *, .scroll-reveal, .scroll-reveal-stagger > * {
    animation: none !important;
    transition: none !important;
    opacity: 1 !important;
    transform: none !important;
  }
}