modified Klavika?

It's a custom face by Joe Kral.

Very cool. How did you come across that?

Cuban Council, who did their identity, have the info on their site.

Akira is right. Kral made some judicious modifications, but there's no reason to believe he didn't start with Klavika Bold.

What is the font used in the body text? It's not Helvetica. Or is it? Is it Arial?

Lucida Sans/Lucida Grande