/* ─── Scroll-reveal base states ──────────────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition:
    opacity var(--duration-slow) var(--ease-out),
    transform var(--duration-slow) var(--ease-out);
}

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

/* Staggered children — each .reveal--child inside a .reveal-group delays */
.reveal-group .reveal--child:nth-child(1) { transition-delay: 0ms; }
.reveal-group .reveal--child:nth-child(2) { transition-delay: 80ms; }
.reveal-group .reveal--child:nth-child(3) { transition-delay: 160ms; }
.reveal-group .reveal--child:nth-child(4) { transition-delay: 240ms; }
.reveal-group .reveal--child:nth-child(5) { transition-delay: 320ms; }
.reveal-group .reveal--child:nth-child(6) { transition-delay: 400ms; }
.reveal-group .reveal--child:nth-child(7) { transition-delay: 480ms; }
.reveal-group .reveal--child:nth-child(8) { transition-delay: 560ms; }

/* Slide from left variant */
.reveal--left {
  transform: translateX(-24px);
}

.reveal--left.is-visible {
  transform: translateX(0);
}

/* Fade only */
.reveal--fade {
  transform: none;
}

/* ─── Timeline entry reveal ──────────────────────────────────────────────────── */
.timeline-entry {
  opacity: 0;
  transform: translateY(16px);
  transition:
    opacity 500ms var(--ease-out),
    transform 500ms var(--ease-out);
}

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