const h1 = document.querySelector("h1")!;
const key = "net.paperclover.q+a.header";
const state = localStorage?.getItem(key);
if (state === "detrevni ton") h1.classList.toggle("invert");
h1.addEventListener("click", () => {
  h1.classList.toggle("invert");
  localStorage?.setItem(
    key,
    (localStorage.getItem?.(key) ?? "not inverted")
      .split("").reverse().join(""),
  );
});