import { BootstrapElement, type Size, type Variant } from '@bootstrap-wc/core';
export type ButtonType = 'button' | 'submit' | 'reset';
export type ButtonStyle = 'solid' | 'outline' | 'link';
/**
 * `<bs-button>` — Bootstrap button as a web component.
 *
 * The host element IS the button. Bootstrap's `.btn`, `.btn-{variant}`, size
 * and state classes are applied to the host, so that container components
 * (`.btn-group > .btn + .btn`) can style it correctly across shadow
 * boundaries via slot flattening. A shadow slot simply projects the author's
 * content; form submission, activation, and link navigation are handled on
 * the host.
 *
 * Set `variant="none"` to render the bare `.btn` base class without a color
 * variant. Set `toggle` to have user activation flip the `active` state
 * (matches Bootstrap's `data-bs-toggle="button"` plugin behavior).
 *
 * @slot - Button content (text and/or icon).
 * @fires bs-click - Bubbles on user activation (suppressed when disabled).
 */
export declare class BsButton extends BootstrapElement {
    static formAssociated: boolean;
    variant: Variant | 'none';
    buttonStyle: ButtonStyle;
    size?: Size;
    type: ButtonType;
    disabled: boolean;
    active: boolean;
    toggle: boolean;
    href?: string;
    target?: string;
    rel?: string;
    private _internals?;
    constructor();
    connectedCallback(): void;
    disconnectedCallback(): void;
    protected hostClasses(): string;
    updated(changed: Map<string, unknown>): void;
    private _onClick;
    private _onKeydown;
    render(): import("lit-html").TemplateResult<1>;
}
declare global {
    interface HTMLElementTagNameMap {
        'bs-button': BsButton;
    }
}
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