Hi Dominique,
Radio button alignment issue was being discussed in the moodle forum for quite a while so I came up with this code to resolve that issue.
It has lots of advantages, to enlist a few:
1. Firstly, it resolves the alignment issue.
2 It adds up color to the radio button to match your theme design.
3. It adds an animating effect which makes the user experience more smoother.
You can visit my site to check it out (https://courses.studyntest.com/)
That's it. Thanks for reading!