%\RequirePackage[no-math]{fontspec}
\RequirePackage{fontspec}
\defaultfontfeatures{Ligatures=TeX}
%\RequirePackage[garamond]{mathdesign}

\setmainfont[%
  NFSSFamily=Garamond,%
  ItalicFont=Garamond-Italic,%
  BoldFont=Garamond-Bold,%
  BoldItalicFont=Garamond-Bold,%
  SlantedFont=Garamond,%
  BoldSlantedFont=Garamond-Bold,%
  SlantedFeatures={FakeSlant=0.25},%
  BoldSlantedFeatures={FakeSlant=0.25},%
]{Garamond}
\newfontfamily{\greekfont}[%
  ItalicFont=Garamond-Italic,%
  BoldFont=Garamond-Bold,%
  BoldItalicFont=Garamond-Bold,%
  SlantedFont=Garamond,%
  BoldSlantedFont=Garamond-Bold,%
  SlantedFeatures={FakeSlant=0.25},%
  BoldSlantedFeatures={FakeSlant=0.25},%
]{Garamond}
\newfontfamily{\defaultfont}[%
  NFSSFamily=Garamond,%
  ItalicFont=Garamond-Italic,%
  BoldFont=Garamond-Bold,%
  BoldItalicFont=Garamond-Bold,%
  SlantedFont=Garamond,%
  BoldSlantedFont=Garamond-Bold,%
  SlantedFeatures={FakeSlant=0.25},%
  BoldSlantedFeatures={FakeSlant=0.25},%
]{Garamond}


\RequirePackage{iftex}
\ifxetex
\RequirePackage[Latin, Greek]{ucharclasses}
\setDefaultTransitions{\defaultfont}{}
\setTransitionsForLatin{\defaultfont}{}
\setTransitionsForGreek{\greekfont}{}
\else
\relax
\fi

\RequirePackage{unicode-math}
\setmathfont{Garamond-Math.otf}
\setmathfont[range=\mathup/{num,latin,Latin,greek,Greek}]{Garamond} 
\setmathfont[range=\mathbfup/{num,latin,Latin,greek,Greek}]{Garamond-Bold} 
\setmathfont[range=\mathit/{num,latin,Latin,greek,Greek}]{Garamond-Italic}
\setmathfont[range=\mathbfit/{num,latin,Latin,greek,Greek}]{Garamond-Bold}


\endinput