It would normally be this – .epik-gray .genesis-nav-menu a
but it looks like you added some code that overrides it – .site-header .widget-area a
and .epik-gray .head-wrap a
on line 3123. So you could remove and replace that with – .site-header .epik-gray .genesis-nav-menu a
if you want to make a custom section for it……and then add in your font-family, color, size, etc