If you can or copy-paste the code from the main .html and .css files, I can get started on that in-depth analysis immediately.

, particularly: index.html (or other HTML files) .css files (stylesheet) .js files (JavaScript) Any image or resource folders.

A description of how the files are organized.

Analysis of semantic tags, DOM structure, and accessibility.

Once you provide the code, I can generate a report covering:

Review of CSS responsiveness, layout techniques (Flexbox/Grid), and design.