How to make vB fully mobile responsive?

[XYZ500]

I know there are some responsive themes for vB. One of the vB sites I have do not have a mobile responsive theme and I cannot change it either. Is there any other way to make the site fully mobile responsive?

[In Omnibus]

You can manually convert the entire theme to responsive using media queries and CSS.

How much time do you have?

[Dave]

Making it a true fully responsive theme is a lot of work, especially if you want every single page of vBulletin to be responsive.

I see people playing around with percentages and changing it to a dynamic width, but that does not make it a mobile-friendly forum. For example, hyperlinks are very small to click on when you're on a phone, instead of having a lot of padding around it which makes it a lot friendlier on mobile devices.