04 Daytona 600 Sudden Oil Leak

Hi all! Happy Monday.. shortly after i had the bike running smooth again after replacing air filter and spark plugs on a bike I bought a couple months ago, last night on the way home from visiting my parents when i got off the highway i noticed smoke illuminated in my head lights.. i looked down and saw drips of fluid so i rode the rest of the way home slowly and parked it in the garage. I examined the fluid and it appeared to be oil (light brown) leaking from under the bike. The bike rode completely fine on the way home until i noticed the leak.. I didn't have time to really look at it last night but wondering where i should start? I'm going to make sure the oil plug is completely tight as soon as i get home. Nothing strange happened when i was on the way home or when i started it in the drive way to head back to my place... i did park it on the driveway which is a somewhat steep hill but that probably has nothing to do with it..

Hoping it's something relatively easy as i just had it running good again..