mahdi8708

// Basic client-side routing, page switching, settings storage, and leaderboard rendering
(function(){
  const pages = document.querySelectorAll('.page');
  const navBtns = document.querySelectorAll('.nav-btn');

  function showPage(id){
    pages.forEach(p => p.id === id ? p.classList.add('active') : p.classList.remove('active'));
    navBtns.forEach(b => b.dataset.route === id ? b.classList.add('active') : b.classList.remove('active'));
  }