Search on this site is broken

The height is really small and even if it's manipulated, no text can be input, this is also happening for the categories dropdown. This list is empty. This is true for me whether I'm logged in or not, Chrome or FF for the Mac. I saw some access errors to the css files due to my connection at work, but once I accepted the domain, those went away. I refreshed and confirmed the css files are loading.

Can confirm. Same with the latest Safari in OS X El Capitan. The search does not work in iOS either.