export default class Card extends HTMLElement {
    static get observedAttributes(): string[];
    private readonly $cardContainer;
    private readonly $cardHeader;
    private readonly $cardBody;
    private readonly $cardHeaderContent;
    private readonly $cardBodyContent;
    private readonly $slotHeader;
    private readonly $slotBody;
    private readonly $style;
    constructor();
    attributeChangedCallback(name: string, oldValue: string, newValue: string): void;
    updateStyle(style: string): void;
    initStyle(): HTMLStyleElement;
    get body(): HTMLElement;
    setBody(content: HTMLElement | string): this;
    get header(): HTMLElement;
    setHeader(content: HTMLElement | string): this;
}