/**
 * SUMI Design System — Utility Functions
 *
 * Canonical implementation of cn() for merging Tailwind classes.
 * Also available at apps/web/src/lib/utils.ts.
 */

import { type ClassValue, clsx } from 'clsx';
import { twMerge } from 'tailwind-merge';

/**
 * Merge Tailwind CSS classes with deduplication.
 * Combines clsx (conditional classes) + tailwind-merge (conflict resolution).
 *
 * @example
 * cn('px-4 py-2', isActive && 'bg-primary', className)
 */
export function cn(...inputs: ClassValue[]): string {
  return twMerge(clsx(inputs));
}