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import * as React from "react";import { cva, type VariantProps } from "class-variance-authority";import { Slot } from "radix-ui"; import { cn } from "../lib/utils";import { Spinner } from "./spinner"; const buttonVariants = cva(  "inline-flex shrink-0 items-center justify-center gap-2 rounded-md text-sm font-medium whitespace-nowrap transition-all outline-none focus-visible:border-ring focus-visible:ring-[3px] focus-visible:ring-ring/50 disabled:pointer-events-none disabled:opacity-50 aria-invalid:border-destructive aria-invalid:ring-destructive/20 dark:aria-invalid:ring-destructive/40 [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-4",  {    variants: {      variant: {        default: "bg-primary text-primary-foreground hover:bg-primary/90",        destructive:          "bg-destructive text-white hover:bg-destructive/90 focus-visible:ring-destructive/20 dark:bg-destructive/60 dark:focus-visible:ring-destructive/40",        outline:          "border bg-background shadow-xs hover:bg-accent hover:text-accent-foreground dark:border-input dark:bg-input/30 dark:hover:bg-input/50",        secondary: "bg-secondary text-secondary-foreground hover:bg-secondary/80",        ghost: "hover:bg-accent hover:text-accent-foreground dark:hover:bg-accent/50",        link: "text-primary underline-offset-4 hover:underline",      },      size: {        default: "h-9 px-4 py-2 has-[>svg]:px-3",        xs: "h-6 gap-1 rounded-md px-2 text-xs has-[>svg]:px-1.5 [&_svg:not([class*='size-'])]:size-3",        sm: "h-8 gap-1.5 rounded-md px-3 has-[>svg]:px-2.5",        lg: "h-10 rounded-md px-6 has-[>svg]:px-4",        icon: "size-9",        "icon-xs": "size-6 rounded-md [&_svg:not([class*='size-'])]:size-3",        "icon-sm": "size-8",        "icon-lg": "size-10",      },    },    defaultVariants: {      variant: "default",      size: "default",    },  },); function Button({  className,  variant = "default",  size = "default",  asChild = false,  loading = false,  disabled,  children,  ...props}: React.ComponentProps<"button"> &  VariantProps<typeof buttonVariants> & {    asChild?: boolean;    /** Show a centered spinner while keeping the label's footprint, so the     *  button (and any row it sits in) does not change width on entering the     *  loading state. Ignored with `asChild` (Slot requires a single child). */    loading?: boolean;  }) {  const Comp = asChild ? Slot.Root : "button";  const showLoading = loading && !asChild;   return (    <Comp      data-slot="button"      data-variant={variant}      data-size={size}      data-loading={showLoading ? "" : undefined}      className={cn(buttonVariants({ variant, size, className }), showLoading && "relative")}      disabled={disabled || loading}      {...props}    >      {showLoading ? (        <>          {/* Reserve the label's width so the box stays the same size; overlay              the spinner centered on top. */}          <span className="invisible">{children}</span>          <span className="absolute inset-0 flex items-center justify-center">            <Spinner className="size-3.5" />          </span>        </>      ) : (        children      )}    </Comp>  );} export { Button, buttonVariants };