/* ==========================================================================
   SCROLL-REVEAL ANIMATIONS
   Toggled via IntersectionObserver in js/main.js (adds .is-visible).
   Lightweight by design — supports the content, doesn't distract from it.
   ========================================================================== */

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 700ms var(--ease-out), transform 700ms var(--ease-out);
}

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

.reveal-stagger > * {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 600ms var(--ease-out), transform 600ms var(--ease-out);
}

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

.reveal-stagger.is-visible > *:nth-child(1) { transition-delay: 0ms; }
.reveal-stagger.is-visible > *:nth-child(2) { transition-delay: 70ms; }
.reveal-stagger.is-visible > *:nth-child(3) { transition-delay: 140ms; }
.reveal-stagger.is-visible > *:nth-child(4) { transition-delay: 210ms; }
.reveal-stagger.is-visible > *:nth-child(5) { transition-delay: 280ms; }
.reveal-stagger.is-visible > *:nth-child(6) { transition-delay: 350ms; }

.reveal-scale {
  opacity: 0;
  transform: scale(0.97);
  transition: opacity 700ms var(--ease-out), transform 700ms var(--ease-out);
}

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

@media (prefers-reduced-motion: reduce) {
  .reveal, .reveal-stagger > *, .reveal-scale {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .hero-chip,
  .hero-bg-fx,
  .hero-bg-fx *,
  .section-fx *,
  .flow-dot,
  .ask-vengi-fab-ring {
    animation: none !important;
  }
  .hero-bg-fx {
    transform: none !important;
  }
}