/* ── Scroll-triggered entrance animations ─────────────────────────────────── */

.animate-on-scroll {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.animate-on-scroll.visible {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  .animate-on-scroll {
    transition: none;
    opacity: 1;
    transform: none;
  }
}

/* ── Nav scroll shadow ────────────────────────────────────────────────────── */

#site-nav {
  transition: box-shadow 0.25s ease;
}

#site-nav.nav-scrolled {
  box-shadow: 0 2px 16px rgba(0, 0, 0, 0.08);
}