Maybe it's "littoral" in that it's designed to operate in the upper atmosphere and low orbit, rather than being used for deep space. One might wonder why the design has no airfoil surfaces or lifting body elements, but, heck, it's the future. Who needs stuff like that?
I bet it has a really great anti-graviton engine or some such which makes such considerations quaint and old-fashioned.
Anyhow, I, too, love to see original designs on this forum. I follow with interest.
--Alex