Results Summary Component Using SASS, BEM and Flexbox

Hello! Here are some thoughts in my view.

• Aviod any horizontal scrollbar. Your media query min-width should set at least 750px, because your two parts width of this component seted to 375px and your min-width seted to 700px which smaller than the card width.
• Your BEM rules seem a little confused👀. I'm also learn BEM and I do not well too. "--"should be used as modifier. I think it maybe look better:

  .card {}
  .card__result {}
  .card__summary {}
  .summary__wrapper--reaction {}
  .summary__wrapper--memory {}
  

Just from my perspective, hope it's helpful to you.