Catch Adaptive how to make header smaller?

The header section in Catch Adaptive takes up a lot of vertical space. That’s part of the look of that theme, but I really like the rest of the theme otherwise. How can I make the header section less tall? How can I position the logo in the upper left-hand corner? How can I position the social icons in the upper right-hand corner? (just to the left of the search button) Thanks!