So the other day I'm driving home and by the time I get home the steering is pretty stiff and it's whining a little louder than normal. I park it and go inside. Today I checked the fluid and it looks fine so I start it and head for work. It's still whining but driving normal. About 15 minutes into the drive it starts to get harder to turn. By the time I get to work it's really hard to turn. It's a 45 minute drive to work. I pop the hood at work and my reservoir is empty! I look down and see fluid all around the bottom of the engine bay. What's the most likely problem? Bad pump that possibly caused a leak somewhere? Or busted line? It is weird that the warmer the car got the harder it was to turn. What do you think guys?