No worries
Just take it super easy coming into loose gravel corners, do all your braking in a straight line before you commit the turns, road bikes are amazing fast on straight line, hard packed gravel. Watch out for spring thaw if you live in a cold climate, also deep sand, more so with heavy bikes; any road surface that does not support the full weight of the bike will affect directional stability badly, road tires sink into a soft road surface and will make the bike squirm and wiggle like you have never experienced on a full knobby equipped dirt bike with wide handle bars.
One last thing; watch out for rural wildlife. Country roads seldom provide a clear line of sight and a deer, dog or coyote is only one step from being in your direct path. Straight line brake, hard as you dare to avoid impacting large animals, but anything small is on his own, never, never, swerve to miss a ground hog, you won’t even feel it if you run over the poor little bugger.
That’s a sweet first bike, keep it clean, back off from the road dust and keep the air filter and drive chain clean.