import { type ButtonHTMLAttributes, type ReactNode } from 'react';
import { type VariantProps } from 'class-variance-authority';
declare const rootVariants: (props?: ({
    provider?: "apple" | "google" | null | undefined;
    appearance?: "light" | "dark" | null | undefined;
    size?: "sm" | "md" | "lg" | null | undefined;
} & import("class-variance-authority/types").ClassProp) | undefined) => string;
export type SocialSignInProvider = 'apple' | 'google';
/**
 * Brand surface variant — independent of the kit theme. Apple HIG:
 * `light` = white button + black mark/text, `dark` = black button +
 * white mark/text. Google: `light` = white/neutral button, `dark` =
 * Google-blue button. Pick the appearance that contrasts with your
 * auth-card background; do NOT bind it to `useTheme()`. Defaults to
 * `'light'`. Derived from `rootVariants` so the prop union tracks the
 * CVA option list automatically.
 */
export type SocialSignInAppearance = NonNullable<VariantProps<typeof rootVariants>['appearance']>;
/** Button size. Defaults to `'md'`. Derived from `rootVariants`. */
export type SocialSignInSize = NonNullable<VariantProps<typeof rootVariants>['size']>;
export interface SocialSignInButtonProps extends Omit<ButtonHTMLAttributes<HTMLButtonElement>, 'children'>, Omit<VariantProps<typeof rootVariants>, 'provider'> {
    /**
     * Which identity provider this button represents. Drives the brand
     * mark, the surface colour token, and the default i18n verb + name.
     * Designed extensible — the union and the CVA option list grow
     * together when a new provider (e.g. `'microsoft'`) is added.
     */
    provider: SocialSignInProvider;
    /**
     * Swaps the brand mark for the kit Spinner (size-matched), sets
     * `aria-busy` and `aria-disabled`, and ignores activation so the user
     * cannot double-submit the OAuth redirect. The label stays visible and
     * the button stays focusable, so keyboard focus stays on it. Changed in
     * 1.72.0: before, it set native `disabled`, which dropped focus.
     */
    loading?: boolean;
    /**
     * Override the visible label. When omitted, reads
     * `socialSignInButton.<provider>` ("Sign in with Apple" / "Sign in
     * with Google"). Override only to switch the verb to "Continue with"
     * — never for marketing copy, and the provider NAME ("Apple" /
     * "Google") must stay verbatim per brand rules.
     */
    label?: ReactNode;
    /**
     * Fired when the component detects the user cancelled an in-flight
     * sign-in — typically by pressing browser back after the OAuth
     * redirect, which restores the page from bfcache with `loading` still
     * true. Wire this to your loading-state setter so the button returns
     * to idle. Only fires when `loading` is currently true; never on first
     * mount. Mirrors SignInWithAlfadocsButton — the component does not
     * reset state it doesn't own.
     */
    onLoadingCancelled?: () => void;
}
export declare const SocialSignInButton: import("react").ForwardRefExoticComponent<SocialSignInButtonProps & import("react").RefAttributes<HTMLButtonElement>>;
export {};
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