unfor-dev/spiderman-new ? reverse-engineered prompt

Build me a polished, responsive web app for this project that feels complete and easy to use. I want a clean landing page with a strong visual style, a simple navigation area, and a few sections that make the site feel finished, like a main hero area, some featured content, and a footer.

Keep it modern, mobile friendly, and smooth in the browser. Use the existing JavaScript app setup in the src and public folders, and make sensible choices for the structure and styling so it is easy to maintain later. If there are missing details, fill them in with reasonable placeholder content instead of leaving things empty.

Please make sure the result looks good, works well on different screen sizes, and includes basic accessibility and usability touches. If you need to check current best practices or docs online while building it, go ahead.