Not a god but curious what your looking for. Could probably just post your issue and someone can solve if it's simple selectors
Discussion
Responsive breakpoint stuff, checkout homepage of nodeless.io and just shrink the screen, it doesn't have good breaking points
The breakpoints selection seem not bad, the only problem is the breakpoint 992px > 1060px that explodes the menu, and when < 992px the "beta" floats wrongly.
I would fix the "beta" and remove the first breakpoint to just use the hamburger menu.
Bonus: when the haburger menu is open I would central align the items and put a bottom padding to isolate the signup/login buttons from the background content.
Btw really nice website! 🤙
Beyond my understanding for front end, but hope you get someone that bites on it