import { useEffect } from "react";

export function ThemeInit() {
  useEffect(() => {
    const stored = localStorage.getItem("pmflow_theme") as "light" | "dark" | null;
    const theme = stored ?? (window.matchMedia("(prefers-color-scheme: dark)").matches ? "dark" : "light");
    document.documentElement.classList.remove("light", "dark");
    document.documentElement.classList.add(theme);
  }, []);
  return null;
}