I started turning NihonGo! into a real frontend app by setting up the main routing structure and global providers for authentication and theme control. That gave the project a proper foundation, with protected routes for the learning area and a shared app layout that keeps navigation consistent across the site.

From there, I built the first visible pieces of the interface: a landing page, a styled auth layout, and a functional login screen. I also added reusable form components, API error handling, and session logic so the frontend can talk to the backend, keep users logged in, and send them to the dashboard when authentication succeeds.