src/components/theme-toggle.tsx

"use client"

import * as 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, theme } = useTheme()

  return (
    <Button
      variant="ghost"
      size="icon"
      onClick={() => setTheme(theme === "dark" ? "light" : "dark")}
      className="h-8 w-8 flex items-center justify-center"
    >
      <Moon className="h-4 w-4 rotate-0 scale-100 transition-all dark:-rotate-90 dark:scale-0" />
      <Sun className="absolute h-4 w-4 rotate-90 scale-0 transition-all dark:rotate-0 dark:scale-100" />
      <span className="sr-only">Toggle theme</span>
    </Button>
  )
}