first commit

components/theme-provider.tsx

@@ -0,0 +1,46 @@
+"use client";
+
+import React, { createContext, useContext, useEffect, useState } from "react";
+
+type Theme = "light" | "dark";
+
+const ThemeContext = createContext<{
+  theme: Theme;
+  setTheme: (theme: Theme) => void;
+  toggleTheme: () => void;
+} | null>(null);
+
+const STORAGE_KEY = "techwix-theme";
+
+export function ThemeProvider({ children }: { children: React.ReactNode }) {
+  const [theme, setThemeState] = useState<Theme>("light");
+  const [mounted, setMounted] = useState(false);
+
+  useEffect(() => {
+    const isDark = document.documentElement.classList.contains("dark");
+    setThemeState(isDark ? "dark" : "light");
+    setMounted(true);
+  }, []);
+
+  const setTheme = (next: Theme) => {
+    setThemeState(next);
+    localStorage.setItem(STORAGE_KEY, next);
+    document.documentElement.classList.toggle("dark", next === "dark");
+  };
+
+  const toggleTheme = () => {
+    setTheme(theme === "dark" ? "light" : "dark");
+  };
+
+  return (
+    <ThemeContext.Provider value={{ theme, setTheme, toggleTheme }}>
+      {children}
+    </ThemeContext.Provider>
+  );
+}
+
+export function useTheme() {
+  const ctx = useContext(ThemeContext);
+  if (!ctx) throw new Error("useTheme must be used within ThemeProvider");
+  return ctx;
+}