/* Scroll-triggered reveal base — paired with reveal-observer.js */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition:
    opacity 640ms var(--ease-out),
    transform 640ms var(--ease-out);
  will-change: opacity, transform;
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger children */
.reveal-stagger > * {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 520ms var(--ease-out), transform 520ms 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: 80ms; }
.reveal-stagger.is-visible > *:nth-child(3) { transition-delay: 160ms; }
.reveal-stagger.is-visible > *:nth-child(4) { transition-delay: 240ms; }
.reveal-stagger.is-visible > *:nth-child(5) { transition-delay: 320ms; }
.reveal-stagger.is-visible > *:nth-child(6) { transition-delay: 400ms; }
.reveal-stagger.is-visible > *:nth-child(7) { transition-delay: 480ms; }
.reveal-stagger.is-visible > *:nth-child(8) { transition-delay: 560ms; }
.reveal-stagger.is-visible > *:nth-child(n+9) { transition-delay: 640ms; }