No Power, Won't Start After Removing Seats [solved, I'm an idiot]

I took the seats (all four) out of my 2020 SR5 CrewMax to clean them earlier this week. I disconnected the battery first just as a precaution. Reconnected the air bag and power seat cables and put the seats back in. Then when I went to reconnect the battery, I realized that at some point in the process, the positive terminal connector somehow must have gotten bumped and was now reconnected.

Now my truck won't power on at all. Put the key in the ignition and no lights on the dash or anywhere whatsoever. Won't crank. No noises at all. I've done this a couple times before and never had an issue.

I thought perhaps a light got flicked on while I was cleaning and it just drained the battery. So I tried charging it, but it reads as fully charged and still nothing.

A friend of mine suggested I have a blown fuse or a loose connection somewhere. I can do a lot of things, but am clueless when it comes to electric stuff.

Anyone have suggestions for me before I tuck my tail between my legs and call a mechanic to bail me out?

 

Aaaaaand I just realized I forgot to reconnect the fuse box to the battery. FML.