/**
 * Top-level configuration for the font loader integration.
 */
export type FontLoaderConfig = {
    outputDirectory: string;
    fonts: FontConfig[];
};
/**
 * Configuration for a single font family.
 */
export type FontConfig = {
    family: string;
    source: FontSource;
    variants: FontVariant[];
};
/**
 * Font source provider. Currently only supports package providers,
 * but will be extended with local and network providers.
 */
export type FontSource = PackageProvider;
/**
 * Resolves font files from an installed npm package.
 */
export type PackageProvider = {
    type: "package";
    package: string;
    /** Path to the CSS file relative to the package root. Defaults to "src/index.css". */
    styleFile?: string;
};
/**
 * A specific font variant to load.
 */
export type FontVariant = {
    /** The CSS font-family name to match in @font-face rules (case-insensitive). */
    name: string;
    /** Font weight as a single value or a [min, max] range for variable fonts. */
    weight: number | [number, number];
    /** Font styles to match, e.g. ["normal", "italic"]. */
    styles: string[];
    /** File formats to include. Defaults to ["woff2"]. */
    formats?: string[];
};
/**
 * Configuration for selectively preloading a font variant.
 *
 * Matches against FontVariant by name, and optionally by weight and styles
 * for per-variant granularity. Omitting weight/styles matches all variants
 * with that name.
 */
export type PreloadEntry = {
    /** CSS font-family name to match. */
    variant: string;
    /** Narrow to a specific weight. If omitted, matches all weights for this variant. */
    weight?: number | [number, number];
    /** Narrow to specific styles. If omitted, matches all styles for this variant. */
    styles?: string[];
    /** Optional media query for the preload link. */
    media?: string;
};
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