function loadTheme() {
  const theme = localStorage.getItem("theme") || (window.matchMedia && window.matchMedia("(prefers-color-scheme: dark)").matches ? "dark" : "light");
  document.documentElement.style.colorScheme = theme;
  document.getElementById(theme).checked = true;
}

loadTheme();

function toggleTheme(theme) {
  document.documentElement.style.colorScheme = theme;
  localStorage.setItem("theme", theme);
}