Clutch/Clutch Pedal 1995 Escort 1.9l

Have a 1995 Escort with 1.9l engine. 155,000 on tranny. 2,000 on
rebuilt engine (replaced clutch and throwout bearing at the same time,
new clutch not rebuilt).

Problem. Driving the car today. Pushed clutch pedal in while driving
about 45mph (at the same time pushing the brake pedal to slow the
car), the pedal felt like something "snapped". Actually it is not
pushing the clutch in. The only way I got the car out of gear was as
the transmission "meshed" forcefully yanking the thing out of gear.
After safely stopping the vehicle. You can "force" the car in and out
of gear, but the clutch is always engaged. When you watch the slave
cylinder will move a very small amount (about 1/4" inch) when you
press the clutch, but not enough to move the shift fork or throw-out
bearing to actually move the pressure plates on the clutch. Visual
inspection of the clutch pedal doesn't show any problems (rod that
runs through firewall to clutch master cylinder is still there).
There is no visible fluid leakage and the brakes still work (Brake
master cylinder is an integral part of the clutch system on this
vehicle).

Any ideas?
Glenn