feat: first draft

components/ThemeToggle.tsx

@@ -0,0 +1,37 @@
+'use client';
+
+import React from 'react';
+import { Moon, Sun } from 'lucide-react';
+import { useTheme } from 'next-themes';
+import { Button } from '@components/ui/button';
+
+export function ThemeToggle() {
+  const { setTheme, resolvedTheme } = useTheme();
+
+  const [mounted, setMounted] = React.useState(false);
+
+  React.useEffect(() => {
+    setMounted(true);
+  }, []);
+
+  if (!mounted) {
+    return (
+      <Button variant="ghost" size="icon" className="w-9 px-0">
+        <Sun className="h-5 w-5 opacity-50" />
+      </Button>
+    );
+  }
+
+  return (
+    <Button
+      variant="ghost"
+      size="icon"
+      onClick={() => setTheme(resolvedTheme === 'dark' ? 'light' : 'dark')}
+      className="w-9 px-0"
+    >
+      <Sun className="h-5 w-5 rotate-0 scale-100 transition-all dark:-rotate-90 dark:scale-0" />
+      <Moon className="absolute h-5 w-5 rotate-90 scale-0 transition-all dark:rotate-0 dark:scale-100" />
+      <span className="sr-only">Toggle theme</span>
+    </Button>
+  );
+}