Water leak behind toilet in my Escape 19

[Dogwood]

I'm having a really hard time trying to fix a water leak behind the toilet in my 19.
It is so tight in there and very difficult to see.
I've removed the 2 nuts holding the toilet down, but can't lift off it because the water line is attached and I can't seem to figure out how to disconnect it.
It's almost impossible to look in behind because of the tight space.
Anybody have any experience or tips on how to deal with this problem?
Thanks
Ray