Since the last update, I pushed NihonGo! into the actual learning flow instead of just the dashboard. The modules page now pulls real progress data from the backend and presents each JLPT module as a clickable card, with loading, error, and empty states to make the experience feel complete and stable.

I also added dedicated module and lesson detail pages. Module pages now show overall completion and the full list of lessons, while lesson pages display the explanation content together with exercise previews, making the study journey feel much more structured. To keep everything consistent, I introduced reusable UI pieces like page headers, badges, empty states, and lesson/exercise cards.