I'm using the Overleaf documentation to produce a bibliography with in-text citations, using bibLaTeX (compiler is XeLaTeX, document class is article). I've tried all of the citation styles on the overleaf webpage, and none produce superscript in-text citations (i.e. numbers as superscripts). The closest I can get is numbers in square parentheses.
Is there no citation style that has superscript numbers? Or does this indicate that something else is going wrong?