/* StabMovies v271 performance layer.
   This file changes only delivery/lifecycle behavior; it does not restyle art. */

/* Let the browser skip paint/layout work for unopened or offscreen archives.
   The auto form remembers the real size after first render, limiting scroll jumps. */
@supports (content-visibility: auto) {
  html.sm-perf details.fold > .fold-body,
  html.sm-perf .sm-perf-contain {
    content-visibility: auto;
    contain-intrinsic-size: auto 640px;
  }
}

/* Animation stays fully enabled while visible. Offscreen scenes and background
   tabs pause, then resume at the same point when the visitor returns. */
html.sm-perf .sm-perf-paused,
html.sm-perf .sm-perf-paused *,
html.sm-perf.sm-page-hidden *,
html.sm-perf.sm-page-hidden *::before,
html.sm-perf.sm-page-hidden *::after {
  animation-play-state: paused !important;
}

/* Keep intrinsic image sizing predictable without changing authored dimensions. */
html.sm-perf img {
  max-inline-size: 100%;
}

@media (prefers-reduced-motion: reduce) {
  html.sm-perf *,
  html.sm-perf *::before,
  html.sm-perf *::after {
    scroll-behavior: auto !important;
  }
}