import * as React from "react"
import { clsx, type ClassValue } from "clsx"
import { twMerge } from "tailwind-merge"

export function cn(...inputs: ClassValue[]) {
    return twMerge(clsx(inputs))
}

const Card = React.forwardRef<
    HTMLDivElement,
    React.HTMLAttributes<HTMLDivElement>
>(({ className, style, ...props }, ref) => (
    <div
        ref={ref}
        className={cn(
            "border",
            className
        )}
        style={{
            background: 'var(--surface)',
            borderColor: 'var(--border-subtle)',
            borderRadius: 'var(--radius-lg)',
            color: 'var(--text)',
            boxShadow: 'var(--shadow-card)',
            transition: 'all 0.2s var(--ease-smooth)',
            ...style,
        }}
        {...props}
    />
))
Card.displayName = "Card"

const CardHeader = React.forwardRef<
    HTMLDivElement,
    React.HTMLAttributes<HTMLDivElement>
>(({ className, ...props }, ref) => (
    <div
        ref={ref}
        className={cn("flex flex-col space-y-1.5 p-6", className)}
        {...props}
    />
))
CardHeader.displayName = "CardHeader"

const CardTitle = React.forwardRef<
    HTMLParagraphElement,
    React.HTMLAttributes<HTMLHeadingElement>
>(({ className, ...props }, ref) => (
    <h3
        ref={ref}
        className={cn(
            "text-2xl font-semibold leading-none tracking-tight",
            className
        )}
        {...props}
    />
))
CardTitle.displayName = "CardTitle"

const CardDescription = React.forwardRef<
    HTMLParagraphElement,
    React.HTMLAttributes<HTMLParagraphElement>
>(({ className, style, ...props }, ref) => (
    <p
        ref={ref}
        className={cn("text-sm", className)}
        style={{ color: 'var(--text-secondary)', ...style }}
        {...props}
    />
))
CardDescription.displayName = "CardDescription"

const CardContent = React.forwardRef<
    HTMLDivElement,
    React.HTMLAttributes<HTMLDivElement>
>(({ className, ...props }, ref) => (
    <div ref={ref} className={cn("p-6 pt-0", className)} {...props} />
))
CardContent.displayName = "CardContent"

const CardFooter = React.forwardRef<
    HTMLDivElement,
    React.HTMLAttributes<HTMLDivElement>
>(({ className, ...props }, ref) => (
    <div
        ref={ref}
        className={cn("flex items-center p-6 pt-0", className)}
        {...props}
    />
))
CardFooter.displayName = "CardFooter"

export { Card, CardHeader, CardFooter, CardTitle, CardDescription, CardContent }
