Is Phase shift limited between -90 to + 90?
For an ideal first order circuit phase shift is limited to 90 degrees.
But In general phase shift is not limited to 90 degrees.  Second order circuits (some combination of two capacitors or inductors) can have up to 180 degrees shift.
An ideal circuit with just wires driving a capacitor has 90 degrees shift between current and voltage.
But that ideal circuit doesn't really exist.  In any real circuit the wires have inductance, and now you have a second order circuit.
And if you increased the detail of the model even further to account for parasitic resistance/capacitance/inductance within the real parts it gets even worse.