init commit

src/context/ThemeContext.jsx

@@ -0,0 +1,31 @@
+import { createContext, useEffect, useState } from "react";
+
+export const ThemeContext = createContext();
+
+export const ThemeProvider = ({ children }) => {
+  const [theme, setTheme] = useState(() => {
+    return (
+      localStorage.getItem("theme") ||
+      (window.matchMedia("(prefers-color-scheme: dark)").matches ? "dark" : "light")
+    );
+  });
+
+  useEffect(() => {
+    const root = document.documentElement;
+    document.body.classList.remove("light", "dark");
+    document.body.classList.add(theme);
+    root.classList.remove("light", "dark");
+    root.classList.add(theme);
+    localStorage.setItem("theme", theme);
+  }, [theme]);
+
+  const toggleTheme = () => {
+    setTheme((prev) => (prev === "light" ? "dark" : "light"));
+  };
+
+  return (
+    <ThemeContext.Provider value={{ theme, toggleTheme }}>
+      {children}
+    </ThemeContext.Provider>
+  );
+};