Hi piloto

I had a similar issue and it was the seals failing in the master cylinder on the pedal box.
No drop in fluid, no leaks but no actuation of clutch when pedal pushed.

I couldn’t source a unit in NZ although they are not expensive ex Morgan.
I just got existing unit reconditioned.

Initially was very concerned that the slave had failed, which on my 2012 car was inside bell housing and would of meant engine out!
Very relieved it was the master

Nigel