Result summary component

Container width as a % of viewport width looks and feels strange. It's better to just use some fixed values for min-width and/or max-width.

The same goes for height, only in this case it's better not to assign any value to height, the default in most cases is appropriate. If you try to change the size of the viewport, you'll see the problem.

(looking deeper, there are a lot of percentage-based heights and widths. I suggest removing them all unless necessary. Since you are using flexbox for many things, you should allow flex containers to decide appropriate widths/heights.)