// Optional: manual dark-mode toggle without extra extensions.
// Add a button somewhere in your header/footer HTML and call toggleIZLDark().
function toggleIZLDark(){
  const el = document.documentElement;
  el.classList.toggle('izl-dark');
  try{ localStorage.setItem('izl_dark', el.classList.contains('izl-dark') ? '1' : '0'); }catch(e){}
}
(function(){
  try{
    if(localStorage.getItem('izl_dark') === '1') document.documentElement.classList.add('izl-dark');
  }catch(e){}
})();
