const themeToggle = document.getElementById('theme-toggle');
const iconSun = document.getElementById('icon-sun');
const iconMoon = document.getElementById('icon-moon');

function updateIcons(isDark) {
  iconSun.classList.toggle('hidden', !isDark);
  iconMoon.classList.toggle('hidden', isDark);
}

updateIcons(document.documentElement.classList.contains('dark'));

themeToggle.addEventListener('click', () => {
  const isDark = document.documentElement.classList.toggle('dark');
  localStorage.setItem('theme', isDark ? 'dark' : 'light');
  updateIcons(isDark);
});