Can't change color of placeholder text in form

I’m building a site and use webflows native form at the bottom of the page. It’s a simple one field email form. But there’s no way to change the color of the placeholder text which is light grey. I can change the size, font etc. but not color.

And also if you look closely the text field has a light grey border that can’t be removed and there’s a gap between the form text field and the form field. Is it supposed to be like that?