text: const overlay = document.getElementById('overlay');
  const sign_up_form = document.getElementById('signup-form');
  const sign_in_form = document.getElementById('signin-form');
  const sign_up_btn = document.getElementById('signup-btn')
  const sign_in_btn = document.getElementById('signin-btn')
  const request_btn = document.getElementById('request-btn')
  
  sign_up_btn.addEventListener('click', function (e) {
    e.preventDefault();
    overlay.style.visibility = 'visible';
    sign_up_form.style.visibility = 'visible';
  })
  
  request_btn.addEventListener('click', function (e) {
    e.preventDefault();
    overlay.style.visibility = 'visible';
    sign_up_form.style.visibility = 'visible';
  })
  
  sign_in_btn.addEventListener('click', function (e) {
    e.preventDefault();
    overlay.style.visibility = 'visible';
    sign_in_form.style.visibility = 'visible';
  })
  
  overlay.addEventListener('click', function () {
    overlay.style.visibility = 'hidden';
    sign_up_form.style.visibility = 'hidden';
    sign_in_form.style.visibility = 'hidden';
  })