priyasathe123/MLSGI ? reverse-engineered prompt

Build me a simple learning site for an AI and ML certificate prep course.

I want a clean homepage that helps someone study NumPy basics and practice with a quiz. The site should have easy navigation to sections for arrays, indexing, operations, and exercises, plus a quiz page for checking understanding. Keep the design simple, readable, and mobile friendly, with clear headings, short explanations, and obvious buttons or links to move between lessons and the quiz.

Please make it feel like a small educational hub, not a complicated app. If it helps, use current best practices and look up anything you need online. The main goal is that a beginner can open the site, learn the basics of NumPy, and quickly test themselves without getting lost.