Yesterday, I accidentally left the window open while it was raining heavily. Some rain poured in for a while (maybe a half-hour or so) before I noticed. After I had wiped off the floor, some dark areas remained in the vicinity of the seams between the planks. Since then, most of these dark areas have dried up and returned to their original color, but some still remain, close to the wall (see pictures below)
These dark areas seem to dry up extremely slowly (I guess they are a sign of trapped water, and not permanent discolouration). I guess they will dry up in due time, even if it might take a very long time, but I've read that mold growth can initiate in as little as 72 hours, which makes me a bit worried.
What should I do, just leave it and wait for it to dry up? Call a professional? (I'd rather not, of course). Take measures on my own?