I'll create a simple Hello World page for you. Let me first check your codebase structure.

I can see this is a Next.js project with the default structure. The app/page.tsx file doesn't exist yet, so I'll create a simple Hello World page for you.

I've created a simple Hello World page that displays "Hello World" centered on the screen with a large, bold font. The page uses Tailwind CSS utilities for responsive centering and styling.