[y4mi]

Sadly no, I tried for a while until I finally threw in the towel at some point.

I think you're overestimating what I did though, the basic idea is this recreation.

https://codepen.io/wohlben/pen/gOGKejv

it was just a lot more elements in the navigation with subcategories etc, but basically the same methods

(remember to check the mobile view, as thats the one thats using most selectors. Though the desktop view is arguably better)

this recreation is probably very confusing though, as the only hint that there are more links hidden for the category are the missing corners - and there is nothing hinting you have to click the category names to show these hidden options. and i skimped on proper accessibility for this mockup, so the hidden options can't be selected without touch/mouse

The JS just emulates what opening the page would have done. It was SSR