const buttons = document.querySelectorAll(".theme-btn");
const body = document.body;

const savedTheme = localStorage.getItem("appTheme") || "light";
body.setAttribute("data-theme", savedTheme);

buttons.forEach((btn) => {
  btn.addEventListener("click", () => {
    const theme = btn.dataset.theme;
    body.setAttribute("data-theme", theme);
    localStorage.setItem("appTheme", theme);
  });
});