web/src/_stubs/shared-ui/button.tsx

import * as React from 'react';

interface ButtonProps extends React.ButtonHTMLAttributes<HTMLButtonElement> {
  variant?: 'default' | 'destructive' | 'outline' | 'secondary' | 'ghost' | 'link';
  size?: 'default' | 'sm' | 'lg' | 'icon';
}

export function Button({ className = '', variant = 'default', size = 'default', ...props }: ButtonProps) {
  const base = 'inline-flex items-center justify-center whitespace-nowrap rounded-md text-sm font-medium transition-colors disabled:pointer-events-none disabled:opacity-50';
  const variants: Record<string, string> = {
    default: 'bg-primary text-primary-foreground hover:bg-primary/90',
    destructive: 'bg-destructive text-destructive-foreground hover:bg-destructive/90',
    outline: 'border border-input bg-background hover:bg-accent hover:text-accent-foreground',
    secondary: 'bg-secondary text-secondary-foreground hover:bg-secondary/80',
    ghost: 'hover:bg-accent hover:text-accent-foreground',
    link: 'text-primary underline-offset-4 hover:underline',
  };
  const sizes: Record<string, string> = {
    default: 'h-10 px-4 py-2',
    sm: 'h-9 rounded-md px-3',
    lg: 'h-11 rounded-md px-8',
    icon: 'h-10 w-10',
  };
  return <button className={`${base} ${variants[variant] || ''} ${sizes[size] || ''} ${className}`} {...props} />;
}