Good practice using Sass, JavaScript, API and Grid

Hey everybody, I would appreciate any feedback. There's a few things that I couldn't quite figure out.

• How to change the color of the SVG images. In dark mode, they're supposed to be white. Also, when something is 'Not Available' (i.e. twitter handle) it's supposed to be greyed out. I can't figure out how to change the color at all, let alone how to programmatically change it when something is 'Not Available'.

• Another thing that's driving me crazy is that when the screen width gets too small the button gets pushed out of the form. Even worse, when the 'No result' error is there, it pushes it even further and 'No result' goes to 2 lines, for some reason.

• Also, I feel like I could definitely refactor some of my javascript. This is my first "junior" project, after doing a few "newbies".

Thanks in advance for any help!