I haven’t used Ai for the Css or the Html.

I have only used AI for js, especially only in the Dicts. The reason i got Kannada and Tamil done so quickly is because Tamil is just Malayalam but debloated (no chillu, so many less letters) and Kannada is just Malalayalam but only a slight bit of debloating (no chillu).
The reason that the github html doesnt match the css in repo, is because the Html in the repo is made deliberately empty due it only being an EXAMPLE!! It is not a finalised product. Also, the CSS is only in the repo because good practice. And, you can check the whole repo for the HISTORY of the CSS file. I did use the w3schools demos a lot to understand exactly how I can use flexboxes, and prevent broken errors. If you wanted to, you could download the HTML file I used in the Hosting, and that matches the CSS, because I made it literally in my home directory.