(function(){
 var root=document.documentElement;
 function gespeichert(){
 try{return localStorage.getItem('theme');}catch(e){return null;}
}
 function setzen(theme){
 root.dataset.theme=theme;
 try{localStorage.setItem('theme',theme);}catch(e){}
}
 var start=gespeichert();
 if(!start&&window.matchMedia){
 start=window.matchMedia('(prefers-color-scheme:dark)').matches?'dark':'light';
}
 root.dataset.theme=start||root.dataset.theme||'light';
 document.addEventListener('click',function(e){
 var el=e.target.closest&&e.target.closest('[data-action="theme-toggle"]');
 if(el)setzen(root.dataset.theme==='dark'?'light':'dark');
});
})();