// Runs before the page paints: marks that JavaScript is on, so hints written for
// readers without it (in the server-rendered pages) can be hidden, and applies the
// reader's saved light or dark choice so the page never flashes the other theme.
document.documentElement.classList.add('js');
try {
  const t = localStorage.getItem('duly-theme');
  if (t === 'light' || t === 'dark') document.documentElement.dataset.theme = t;
} catch {
  // Storage blocked (private window, site data off): follow the system setting.
}
// Motion only when the reader allows it and the browser can tell what is on screen.
// If the app script never takes over, fall back to the static page after 4 s.
try {
  if ('IntersectionObserver' in window && !matchMedia('(prefers-reduced-motion: reduce)').matches) {
    document.documentElement.classList.add('motion');
    setTimeout(() => {
      if (!window.__dulyMotion) document.documentElement.classList.remove('motion');
    }, 4000);
  }
} catch {
  document.documentElement.classList.remove('motion');
}