const classes = [clsx('btn', 'primary')]  // ❌ "clsx" not matched
const arr = [cn('text-red-500')]          // ❌ "cn" not matched  

const classes = [ clsx('btn', 'primary')] // ✅ matches (whitespace after [)
const arr = [, cn('text-red-500')]        // ✅ matches (comma before cn)

const buttonClasses = [clsx(conditionalClasses), baseClasses]
const styles = [cn(variantStyle), defaultStyle]

/(?<=^|[:=,;\s{()\[])([\p{ID_Start}$_][\p{ID_Continue}$_.]*)[(`]/dgiu
//               ^ add \[ here