Change colour and font of heading in footer

Site URL: https://www.supersonic-monkey.com/vision

There are 3 titles in my footer.

Get involved, Debut Product Launch, & Contact Us Direct

I want all three to have custom font (which I have already installed in Squarespace) and custom colour.

I know how to change colour with custom CSS as have done it in other areas, however I have used the block identifier tool but it will not change colour even though I have tried all the possible blocks that appear using the identifier.

I have also pressed F12 to locate blocks but it wont change colour using the blocks I find there either. 

Please could someone show me how to change the colour and font of those three headings using custom CSS?

The password to the site is 2222