Clutch pedal just goes to floor in L200

https://www.yourmechanic.com/estimates/chevrolet/hhr/clutch-pedal-goes-all-the-way-to-the-floor-inspection

see if this link helps you find out why.
2004 cavalier clutch pedal goes to floor Google Search

clutch pedals are suposed to go all the way to the floor , you sure you dont mean brake pedal (cus thats bad ! ) clutches should travel all the way to floor and release the "grab" of the engine about 2/3 down , this way they are more smoothly allowing shifting thru the gears and not jerking as you shift thru the gears , if clutch pedal does not start to "grab" the engines power by 2/3 off the floor and fully "grab"its power all the way up(slipping) ,and you have a hydraulic clutch (96's do) then the clutch disk may require replacement or there is a oil leak in the clutch/master/slave cylinder , look for small oil leaks from under car in area of foot pedals
clutches should be replaced as an assembly that includes , disk ,pressure plate, throwout bearing , with engine side clutch plate magnafluxed for heat cracks and any hydraulic oil leaks replaced or repaired

If your fluid was low (which is why you likely added some,) you may need to "bleed" your clutch master cylinder.

If the clutch is hydraulic operated, you need to bleed the clutch at the slave cylinder, down on the transmission housing. Bleed it just like you bleed brakes of air in the line-open bleeder valve, someone pushes clutch pedal slowly to floor, close valve, and repeat until fluid comes out valve in a steady stream. Make sure the clutch reservoir is full before starting. It uses regular brake fluid.
If not hydraulic, it would be cable operated. Adjust the cable until clutch pedal is right.

The clutch should go to the floor =) But if it's not disengaging the clutch disk, there's definitely a problem between the pedal and the clutch disk. I'm guessing you have a hydraulic clutch?

It has air bubbles on the piping, fill the deposit with brake solution, and push and pull the clutch pedal with your hand it doesn't matter if it goes straight to the floor if that happens pull it with your hand, repeat that as if you are bleeding it up, then disconnect the piping beneath the car, the air bubbles will be forced out, then reconnect the piping and repeat the procedure, push and pull the clutch pedal like a 100 times, then disconnect the piping and reconnect. The clutch pedal should be able to go back when there is no air on the piping. If that doesn't work, replace your clutch pump

If hydraulic actuated mechanism, loss of fluid, defective master cylinder or slave cylinder at the clutch. Missing pin or other part between slave cylinder and clutch arm. Loose or broken slave cylinder mounting. Missing pin or broken part between pedal and master cylinder. If mechanical linkage, look for broken components or missing pins at moving joints. If you tried to shift into gear with engine running, you may have damaged the transmission gears.

slave cylinder needs replaced

There is either air in the system or a leak in the clutch slave cylinder. Check your fluid make sure it is full and the cap is tight.