Font and Background color issues

[RoG Aftermath]

Hello, for some reason on my website whenever anyone tries to type something in, the font color and the background color are both white, so you cannot see what you are typing. The main places that it does this is when you are going to sign in, when you type in the username the box stays black and the font stays white, but when i move to entering my password, the box turn white and the font stays white so noone can see what they are typing. It also does this same thing when posting a new thread, but only in the title box. when you move to the subject part of the post the background stays black. Does anyone at all know how to change this?

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Anyone know how to fix this?