export declare const FONT_EXTS: readonly [".woff2", ".woff", ".ttf", ".otf"];
export interface FontInfo {
    filename: string;
    /** Smart-parsed family (e.g. "Inter" for Inter-Bold.woff2). */
    family: string;
    /**
     * Filename stem with noise suffixes (-webfont, -web) stripped. Used as a
     * second @font-face alias so users can reference a font by its filename-derived
     * name (e.g. "knile-bold") without writing manual @font-face rules.
     */
    stemFamily: string;
    weight: number;
    style: 'normal' | 'italic';
    format: string;
}
/**
 * Parse a font filename into family/weight/style metadata.
 *
 * Recognises common conventions used by Google Fonts and similar services:
 *   Inter-Regular.ttf            → Inter / 400 / normal
 *   Inter-Bold.woff2             → Inter / 700 / normal
 *   Inter-BoldItalic.woff2       → Inter / 700 / italic
 *   Inter-700.ttf                → Inter / 700 / normal
 *   knile-bold-webfont.woff2     → knile / 700 / normal (also aliased as "knile-bold")
 *   Roboto-Slab-Bold.ttf         → Roboto Slab / 700 / normal
 *   MyFont.ttf                   → MyFont / 400 / normal
 *
 * Returns null for unsupported extensions. Falls back to whole-stem family
 * (with hyphens preserved) when the trailing modifier is unrecognised.
 */
export declare function parseFontFilename(filename: string): FontInfo | null;
/** Scan a deck's `fonts/` directory and return parsed metadata for each file. */
export declare function scanDeckFonts(deckDir: string): Promise<FontInfo[]>;
/** Build `@font-face` CSS that resolves font files via a URL prefix. */
export declare function buildFontFaceCSS(fonts: FontInfo[], urlPrefix: string): string;
/** Build `@font-face` CSS with each font embedded as a data URI (for self-contained HTML export). */
export declare function buildFontFaceCSSWithDataURIs(deckDir: string, fonts: FontInfo[]): Promise<string>;
/** Copy the deck's `fonts/` directory into a target directory (used for marp-cli exports). */
export declare function copyDeckFonts(deckDir: string, targetDir: string): Promise<void>;