Responsive Azuma Icons?

New to this theme and quite happy with most of the features. Need help on the #site-top-right. Customize css? Problem:

It appears that the search, login, and cart icons do not resize when viewed on tablet/phone screens. I’d rather our site logo be lgr size than those 3 icons on phone screens. How to resolve? Possible to make the icons (their descriptors) be part of the nav bar? Thanks for the help!

The page I need help with: [log in to see the link]