This appears to be pretty close to the "brutalist" aesthetic mentioned in the article. Things like drop shadows on boxes are the opposite of the "fingernail" boxes and you very rarely saw them pre-AI. However I think your site looks fine and well crafted, nice work. (the article also said that this kind of design language is less grating)
Drop shadows on boxes were a common TUI element in the Norton Commander days.
Yeah brutalist is exactly right, that is basically what I prompted for. I didn't realize a bunch of other people were doing this. Actually the only inspiration I had for this was watching the movie (Brutalist) a few years back.
It's been a trend for years before AI... I remember the Balenciaga website being one of the first big names doing it in like... 2018?