import { type FontConfigurationIdentity, type FontRequest, type FontResolution, type FontResolver } from "./font-contract.js";
export interface BrowserFontLimits {
    fontFiles: number;
    fontFileBytes: number;
    fontTotalBytes: number;
    fontRequests: number;
    fontSampleCodePoints: number;
}
export interface BrowserFontResult {
    identity: FontConfigurationIdentity;
    resolutions: FontResolution[];
    renderedTextNodeCount: number;
    /** False only for the no-resolver fallback (observedFonts): every resolution is then
     * `source: "browser"` by construction, which callers must not confuse with a configured
     * resolver's own `missing` outcome (also `source: "browser"`, but authoritative). */
    resolverConfigured: boolean;
}
export interface BrowserFontTask {
    pending(): string[];
    wait(signal: AbortSignal): Promise<BrowserFontResult>;
}
export declare class BrowserFontError extends Error {
    readonly kind: "invalid_response" | "resource_limit";
    readonly detail?: string;
    readonly cause?: unknown;
    constructor(kind: BrowserFontError["kind"], message: string, detail?: string, cause?: unknown);
}
/** Parse a computed CSS font-family value without splitting quoted or escaped commas. */
export declare function parseCssFontFamily(value: string): string[];
/** Browser-readable request inventory; element associations remain internal. */
export declare function inventoryDocumentFontRequests(document: Document, limits: Pick<BrowserFontLimits, "fontRequests" | "fontSampleCodePoints">): FontRequest[];
export declare function createBrowserFontTask(document: Document, resolver: FontResolver | undefined, limits: BrowserFontLimits): BrowserFontTask;
//# sourceMappingURL=font-runtime.d.ts.map