Any Wine Drinkers Here? (Need Advice on a Gift)

Hi Guys. I was wondering if there is anyone here that knows a little bit about wine. Basically, a friend of mine has a birthday coming up. The thing is up until recently, she's kinda been a casual friend and we've just exchanged birthday messages in the past. Lately, we've been getting really close and hanging out a lot. It's to the point where I'm starting to get a vibe that a romance may be developing. So basically, I wanna get her a nice bottle of wine for her birthday, because it's a nice gesture but not overly aggressive (in case I'm reading the situation wrong). Only problem is that I know absolutely nothing about wine. I'm more of a liquor drinker.

I was wondering if anyone had any suggestions of a nice red wine for a birthday gift. I'm thinking of something in the $20-$25 range. Any ideas?