document.querySelectorAll('form').forEach(function(f){
f.addEventListener('submit',function(){
var btn=f.querySelector('button[type=submit],input[type=submit]');
if(btn){btn.disabled=true;btn.textContent='Submitting...'}
});
});
document.querySelectorAll('.toggle-password').forEach(function(t){
t.addEventListener('click',function(){
var i=document.getElementById(t.dataset.target);
if(i){i.type=i.type==='password'?'text':'password'}
});
});