QuizLeapsBooks/NeoBranium ? reverse-engineered prompt

Build me a polished website from this repo that feels like a study and learning hub called NeoBranium.

It should have a good looking homepage, an about page, a blog section, a place for notes or learning content, and a simple interactive area for quizzes or brain game style content. Make the site easy to browse, mobile friendly, and clean in design. If there are existing pages or scripts in the repo, wire them together instead of starting over, and fill in anything missing so the whole thing actually works end to end.

Please also make sure search works across the content, the Firebase and server setup are connected properly, and the site is ready to run and deploy without extra manual fixing. If you need current docs for Firebase or deployment details, look them up online.

Keep the existing style where it makes sense, but improve the overall polish, layout, and usability.