:root{
  /* Azerbaijani-safe system stack: ə, ğ, ı, İ, ö, ş, ç, ü */
  --filtrex-font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Noto Sans","Helvetica Neue",Arial,sans-serif;
}
html,body,button,input,textarea,select,optgroup,option,table,th,td{
  font-family:var(--filtrex-font)!important;
  font-synthesis:weight style;
  text-rendering:optimizeLegibility;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}