CSS: dynamic properties and (pseudo) states

[tgru]

Hello,
I am looking for a line edit with hover effect and different border sizes for enabeld/ not enabeld.
And the border should change with respect to some dynamic property ( if widget is enabled).
I tried:

QLineEdit!enabled {border: 0px}
QLineEdit:hover   {border: 1px solid blue}
QLineEdit[contrast=\"0\"]:enabled {border: 1px solid white}
QLineEdit[contrast=\"1\"]:enabled {border: 1px solid gray}
QLineEdit[contrast=\"2\"]:enabled {border: 1px solid black}

and

QLineEdit[contrast=\"0\"]!enabled {border: 0px}
QLineEdit[contrast=\"1\"]!enabled {border: 0px}
QLineEdit[contrast=\"2\"]!enabled {border: 0px}
QLineEdit[contrast=\"0\"]:hover   {border: 1px solid blue}
QLineEdit[contrast=\"1\"]:hover   {border: 1px solid blue}
QLineEdit[contrast=\"2\"]:hover   {border: 1px solid blue}
QLineEdit[contrast=\"0\"]:enabled {border: 1px solid white}
QLineEdit[contrast=\"1\"]:enabled {border: 1px solid gray}
QLineEdit[contrast=\"2\"]:enabled {border: 1px solid black}

I use unpolish/ polish on changing property.
So at least I get dynamic color with second solution but no hover.
First solution does not work too.

How to combine dynamic properties und states?

Thank you!
Thomas