import { w as writable, d as derived } from "./index3.js";
const THEME_KEY = "dw_theme";
function getInitialMode() {
  if (typeof localStorage !== "undefined") {
    const stored = localStorage.getItem(THEME_KEY);
    if (stored === "light" || stored === "dark" || stored === "system") return stored;
  }
  return "system";
}
const themeMode = writable(getInitialMode());
themeMode.subscribe((value) => {
  if (typeof localStorage !== "undefined") {
    localStorage.setItem(THEME_KEY, value);
  }
});
derived(themeMode, ($mode) => {
  if ($mode === "system") {
    if (typeof window !== "undefined") {
      return window.matchMedia("(prefers-color-scheme: dark)").matches ? "dark" : "light";
    }
    return "light";
  }
  return $mode;
});
export {
  themeMode as t
};