I just went to play my acoustic guitar quickly before I went to bed, and I noticed that it was way out of tune. Every string was much lower than it should have been. I looked down to see that the entire bridge area had started to pull away from the body of the guitar. I have no idea why this happened, since it happened while the guitar wasn't being used and the strings were definitely not too tight. I haven't changed the strings in a while (longer than I should have gone without changing them) and it tuned was a half-step down, so there was definitely not too much tension (or at least there shouldn't have been or else this likely would have happened a long time ago). Here's a picture I took with my phone's camera. It might be hard to tell from this, but the circled area is maybe a quarter-inch off the body. Any idea if this is an easy do-it-youself repair or something I can get repaired at a shop easily? This was the first guitar I ever bought. I've had it for about 11 years and I'd hate to not be able to save it over something like this happening out of nowhere.