/* Avoid a second CSS animation underneath Lenis; native fallback is preserved. */
html.lenis { scroll-behavior: auto !important; }

/* The page stays still while the contents of an open panel scroll natively. */
.lenis dialog,
.lenis #chapter-menu,
.lenis #mobile-nav {
  overscroll-behavior: contain;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto !important; }
}