hmm. very mysterious. feel free to send me your css file (or even the whole project folder)... if not, then let me know what the issue was when you do figure it out!
redownloading it did the trick. nothing else seemed to work T__T i think i didnt download/update 11ty properly when i originally downloaded it from the command terminal... i think i got 11ty to update?? but now it works LOL thank you again, i really think i just fudged it up on my end from the start