Main font name needed!

I feel like this is a stupid question, but I am trying to track down the main font that is used in this theme (for all headers) so that I can make a custom logo image to match the theme, and I can’t find the name of the font anywhere. I tried using the “inspect” tool in my browser and it only found mention of font family: Source Sans Pro, which is not an exact match to the site content. Can someone please tell me what font is used??

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