import { TextPreset } from '@sixbell-telco/sdk/directives/text';
import * as i0 from "@angular/core";
/**
 * A context-aware subtitle primitive for cards.
 *
 * @remarks
 * Renders as a `<p>` element with the prominent card-header preset inside `<st-card-header>` when the card contains sections.
 * If the card has no sections, the subtitle downgrades to the same preset used by section subtitles.
 * Preset and classes are overridable per instance.
 * Supports arbitrary inner HTML/components.
 *
 * Uses `display: contents` so the rendered paragraph element participates
 * directly in the parent flex layout.
 *
 * @example
 * ```html
 * <st-card-header>
 *   <st-card-title>Title</st-card-title>
 *   <st-card-subtitle>Last updated today</st-card-subtitle>
 * </st-card-header>
 * ```
 */
export declare class CardSubtitleComponent {
    private readonly typographyContext;
    private readonly hostStaticClasses;
    preset: import("@angular/core").InputSignal<TextPreset>;
    class: import("@angular/core").InputSignal<string>;
    protected readonly isCardHeader: import("@angular/core").Signal<boolean>;
    protected readonly prominent: import("@angular/core").Signal<boolean>;
    protected readonly resolvedPreset: import("@angular/core").Signal<"1" | "2" | "3" | "4" | "5" | "6" | "7" | "8" | "9" | "10">;
    protected readonly resolvedClass: import("@angular/core").Signal<string>;
    static ɵfac: i0.ɵɵFactoryDeclaration<CardSubtitleComponent, never>;
    static ɵcmp: i0.ɵɵComponentDeclaration<CardSubtitleComponent, "st-card-subtitle", never, { "preset": { "alias": "preset"; "required": false; "isSignal": true; }; "class": { "alias": "class"; "required": false; "isSignal": true; }; }, {}, never, ["*"], true, never>;
}