Clutch

I have a 2001 mitsubishi eclipse gt manual, v6, 3.0 it has 95k in miles. The problem I am having is about 5 days ago I noticed the clutch felt wierd. Two days later I noticed it was hard to get it into gear. Then three days later I was leaving my house when my pedal just went out. I mean I pushed it to the floor and there was no resistance, oubviously it came back due to it being spring loaded. I am not sure if I have a clutch problem or master cylinder problem I just dont know