Yeah, I know it's some sort of variable valve timing. But exactly
what is it as implemented in my 2006 Civic LX? I've done a lot of
searching on the web, but I can't find my answers.

When does it activate? Is it a smooth, continuous action, or is it a
step change in configuration at some engine speed? Is it somehow
changing the fulcrums of the rocker arms? Is it rotating cam lobes on
the cam shafts? Is it rotating the cam shaft relative to the pully
driven by the timing belt? Is it selecing different cam lobes? Is it
a change of the valve lift? Opening only? Closing only? Is its
activation a function of engine speed only, or load, throttle
position, airflow, etc.? Is it done with solenoids in the head, or is
oil pressure used?

Any pointers to detailed engineering descriptions would be greatly
appreciated.

Thanks.