import { LitElement } from "lit";
/**
 * Enum for theme states.
 * @readonly
 * @enum {string}
 */
declare enum State {
    DARK = "dark",
    LIGHT = "light",
    AUTO = "auto"
}
/**
 * `ui-darkmode` is a custom element that allows users to switch between light, dark, and system themes.
 *
 * @element ui-darkmode
 */
export declare class UiDarkMode extends LitElement {
    /**
     * The current theme state.
     * @type {State}
     */
    state: State;
    /**
     * Called when the element is added to a document.
     * @returns {void}
     */
    connectedCallback(): void;
    /**
     * Gets the preferred theme from local storage or system preference.
     * @returns {State} The preferred theme state.
     */
    getPreferedTheme(): State;
    /**
     * Sets the theme and dispatches a custom event with the theme state.
     * @param {State} state - The theme state to set.
     * @returns {void}
     */
    setTheme(state: State): void;
    /**
     * Renders the content of the element.
     * @returns {import('lit').TemplateResult}
     */
    render(): import("lit-html").TemplateResult<1>;
    /**
     * Styles for the `ui-darkmode` element.
     * @type {import('lit').CSSResult[]}
     */
    static styles: import("lit").CSSResult[];
}
declare global {
    interface HTMLElementTagNameMap {
        "ui-darkmode": UiDarkMode;
    }
}
export {};