The last ark

After the earth got to cold to live on a massive circle ark was built 100000 people reside on it being chosen at random. you woke up just here you didn't know. the ark is split up in 3 sections the poor section which is normal people reside. It is poor and worse then prison. each person In this section has white prison like jumpsuits. the beds go up to 1,000 floors and you get up and down via lift. food sucks and water is limited. then is the employee section guards cooks and managers reside here. then finally the wealthy section rich people stay here. and high standing people. it's luxurious gold everywhere they have their own wardrobe plenty of food and water cold and hot. The doors are separated by keycards that only guards and each door Is guarded by someone armed. this is orbiting earth and there is a escape pod with small living above the employees section but only the captain can launch it and only higher people are out on it you choose. everything like what section you are on.