Hey Tommy,
Thanks for the question and I'm glad you find atomic design principles helpful.
Container queries (formerly known as element queries alistapart.com/article/container-queries-once-mor…) are the dream! The ability to create completely fluid, responsive components and drop them into any layout and have them Just Work™ is what pretty much everyone would love.
Apparently it's tough from a browser implementation side of thing, but I'm hoping it's not impossible. Until they become an official thing, I've been rounding up resources, tools, and articles on container queries here: bradfrost.github.io/this-is-responsive/resources.…
Here's to the future of component-driven design and development!