/* ============================================================
   Enviromatic — Scroll-fade Animations
   Uses Intersection Observer via main.js
   ============================================================ */

/* ── Fade-in base ──────────────────────────────────────────── */
.fade-in {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Staggered children */
.fade-in-group > * {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}
.fade-in-group.visible > *:nth-child(1) { transition-delay: 0.05s; }
.fade-in-group.visible > *:nth-child(2) { transition-delay: 0.15s; }
.fade-in-group.visible > *:nth-child(3) { transition-delay: 0.25s; }
.fade-in-group.visible > *:nth-child(4) { transition-delay: 0.35s; }
.fade-in-group.visible > *:nth-child(5) { transition-delay: 0.45s; }
.fade-in-group.visible > *:nth-child(6) { transition-delay: 0.55s; }
.fade-in-group.visible > * { opacity: 1; transform: translateY(0); }

/* Slide from left */
.slide-left {
  opacity: 0;
  transform: translateX(-30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.slide-left.visible { opacity: 1; transform: translateX(0); }

/* Slide from right */
.slide-right {
  opacity: 0;
  transform: translateX(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.slide-right.visible { opacity: 1; transform: translateX(0); }

/* Scale in */
.scale-in {
  opacity: 0;
  transform: scale(0.92);
  transition: opacity 0.55s ease, transform 0.55s ease;
}
.scale-in.visible { opacity: 1; transform: scale(1); }

/* ── Reduced motion ────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  .fade-in, .fade-in-group > *, .slide-left, .slide-right, .scale-in {
    opacity: 1; transform: none; transition: none;
  }
}