Two Plan Toggle

Please implement this code in the current project and add it to (Your Desired Section, e.g. homepage hero, pricing page, dashboard). Change the primary accent color to (YOUR HEX CODE COLOR, e.g. #6366F1).

Requirements:
- Use React + Tailwind CSS (match the project's existing setup)
- Install dependencies if needed: npm install react react-dom
- Keep the layout responsive on mobile and desktop
- Replace placeholder copy with content that fits the project

The UI code:

export function TwoPlanPricing() {
  return (
    <section className="mx-auto grid max-w-3xl gap-6 px-6 py-16 md:grid-cols-2">
      <div className="rounded-2xl border border-zinc-200 bg-white p-8">
        <h3 className="text-lg font-semibold">Free</h3>
        <p className="mt-2 text-4xl font-bold">$0</p>
        <p className="mt-4 text-sm text-zinc-600">For personal projects and learning.</p>
      </div>
      <div className="rounded-2xl bg-zinc-900 p-8 text-white">
        <h3 className="text-lg font-semibold">Pro</h3>
        <p className="mt-2 text-4xl font-bold">$12</p>
        <p className="mt-4 text-sm text-zinc-400">Commercial use and premium blocks.</p>
        <button className="mt-6 rounded-xl bg-indigo-500 px-5 py-2.5 text-sm font-semibold">Upgrade</button>
      </div>
    </section>
  );
}