Interaction for pop-up not working properly


I’ve been having some difficulties getting my interactions to work properly with this site. The first is the drop down menu that I’ve been making on my own (totally realize that it might not be the most elegant right now), but isn’t currently working. The other is a button (also homemade) that is supposed to bring up a pop-up but isn’t working.

I believe that it may be a problem with z-indices, but I’ve been futzing around with it for quite a while and haven’t been able to crack it. I figured that I might be missing something completely obvious and a second pair of eyes would help.

Thanks in advance!

Here is my public share link: Webflow - Moss Health
(how to access public share link)