Fylo landing page with two column layout

I had 3 dificulties in this LP.

1 - Svg color: footer the svg has to be white, I tried "fill", "fill" with "!important", "filter", and the only way that worked was put the svg in the HTML and change fill to white. I don't know if is a good way to do this, but worked!

2 - The link "see how fylo works" with arrow, I tryed a few ways to do it, but aways has something wrong. In this case that I choose, had a second arrow that appears in the devtools, and it is underline too. The underline continues even if the second arrow do not appears.

3 - The active ways message error. The only way that I found to change the default message error was the code you can see on the line 99 (css). But it was appears anytime and I did not find houw to show the message just when someone put a worng email.

I really appreciate any help :)