Change the hover colour style of buttons

Hi guys, after some help with The Shop theme.

My website is thelittlemarketco.com. If you scoll down on the homepage, there is a ‘Shop Now’ button that is beige but once you hover it turns black. I don’t want it to be black. Does anyone know how to change the colour?

I am not good with custom CCS (I have tried some options from other user questions but to no avail) so i would need some guidance.

Thanks