<Button variant="default">
  Primary Action
</Button>

// Classes
className="bg-primary text-primary-foreground shadow-lg shadow-primary/25
  hover:shadow-primary/35 hover:scale-[1.02]
  active:scale-95 transition-all"

<Button variant="secondary">
  Secondary Action
</Button>

// Classes
className="bg-secondary text-secondary-foreground"

<Button variant="destructive">
  Delete
</Button>

// Classes
className="bg-destructive text-destructive-foreground"

<Button variant="outline">
  Cancel
</Button>

// Classes
className="border border-input bg-background hover:bg-accent hover:text-accent-foreground"

<Button variant="ghost">
  Subtle Action
</Button>

// Classes
className="hover:bg-accent hover:text-accent-foreground"

<Button variant="link">
  Learn More
</Button>

// Classes
className="text-primary underline-offset-4 hover:underline"

<Button className="rounded-full shadow-lg shadow-primary/25">
  Create Employee
</Button>

<Button>
  <Plus className="w-4 h-4 mr-2" />
  Add Employee
</Button>

<Button variant="ghost" size="icon">
  <Settings className="w-5 h-5" />
</Button>

<motion.button
  className="
    fixed z-50
    bottom-6 right-6 md:bottom-8 md:right-8
    w-14 h-14 rounded-full
    bg-gradient-to-br from-violet-500 via-purple-500 to-fuchsia-500
    text-white
    shadow-xl shadow-violet-500/30
    hover:shadow-2xl hover:shadow-violet-500/40
    hover:scale-105 active:scale-95
    transition-all duration-200
    flex items-center justify-center
  "
  whileHover={{ scale: 1.05 }}
  whileTap={{ scale: 0.95 }}
>
  <Sparkles className="w-6 h-6" />
</motion.button>

// Correct: Primary button with shadow and scale effects
<Button className="shadow-lg shadow-primary/25 hover:scale-[1.02] active:scale-95">
  Save Changes
</Button>

// Wrong: Plain button without effects
<button className="bg-blue-500 text-white px-4 py-2 rounded">
  Save Changes
</button>

import * as React from "react";
import { Slot } from "@radix-ui/react-slot";
import { cva, type VariantProps } from "class-variance-authority";
import { cn } from "@/lib/utils";

const buttonVariants = cva(
  "inline-flex items-center justify-center gap-2 whitespace-nowrap rounded-lg text-sm font-medium transition-all focus-visible:outline-none focus-visible:ring-1 focus-visible:ring-ring disabled:pointer-events-none disabled:opacity-50",
  {
    variants: {
      variant: {
        default:
          "bg-primary text-primary-foreground shadow-lg shadow-primary/25 hover:shadow-primary/35 hover:scale-[1.02] active:scale-95",
        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",
      },
      size: {
        default: "h-9 px-4 py-2",
        sm: "h-8 rounded-md px-3 text-xs",
        lg: "h-10 rounded-lg px-8",
        icon: "h-9 w-9",
      },
    },
    defaultVariants: {
      variant: "default",
      size: "default",
    },
  }
);

export interface ButtonProps
  extends React.ButtonHTMLAttributes<HTMLButtonElement>,
    VariantProps<typeof buttonVariants> {
  asChild?: boolean;
}

const Button = React.forwardRef<HTMLButtonElement, ButtonProps>(
  ({ className, variant, size, asChild = false, ...props }, ref) => {
    const Comp = asChild ? Slot : "button";
    return (
      <Comp
        className={cn(buttonVariants({ variant, size, className }))}
        ref={ref}
        {...props}
      />
    );
  }
);
Button.displayName = "Button";

export { Button, buttonVariants };