/**
 * Brand-kit loader.
 *
 * A "brand kit" is a small JSON file at `<cwd>/.gg/brand.json` that holds the
 * channel-level constants every render-time tool wants: logo, intro/outro/
 * watermark video paths, default fonts, colour palette, channel name, CTA
 * text. The loader is opt-in — if the file isn't present, every consumer
 * falls back to its existing defaults.
 *
 * Why JSON, not YAML: zero new deps; brand kits are short enough that the
 * JSON line noise doesn't hurt readability.
 *
 * Why separate from styles (`<cwd>/.gg/editor-styles/*.md`): styles modulate
 * the LLM's behaviour (its writing voice, tone, defaults). The brand kit
 * modulates raw render output (which logo to overlay, which font to draw
 * with). They serve different layers and we keep them separate so a user
 * can change one without touching the other.
 */
export interface BrandKitFonts {
    /** Display font for headlines / titles. */
    heading?: string;
    /** Body font for captions / lower-thirds. */
    body?: string;
}
export interface BrandKitColors {
    /** Hex (RRGGBB, no leading #). */
    primary?: string;
    secondary?: string;
    accent?: string;
}
export interface BrandKit {
    /** Channel display name; surfaced in outros, lower-thirds, end-screens. */
    channelName?: string;
    /** Path (relative to cwd) to a logo PNG with alpha — used by overlay_watermark and generate_outro. */
    logo?: string;
    /** Default watermark path (logo, but a more polished pre-positioned variant if you have one). */
    watermark?: string;
    /** Pre-rendered intro video. concat_videos uses this. */
    intro?: string;
    /** Pre-rendered outro video. concat_videos / generate_outro use this. */
    outro?: string;
    /** Per-font-role family (or path to .ttf for ffmpeg drawtext). */
    fonts?: BrandKitFonts;
    /** Brand palette (hex without leading #). */
    colors?: BrandKitColors;
    /** Default CTA text — used by generate_outro and overlay banners. */
    ctaText?: string;
    /** Default subscribe handle / URL surfaced in description templates. */
    subscribeUrl?: string;
}
/** Path of the brand-kit file relative to cwd. Stable so docs can quote it. */
export declare const BRAND_KIT_PATH = ".gg/brand.json";
/**
 * Load `<cwd>/.gg/brand.json` if present. Returns `null` when the file is
 * missing OR malformed — callers should treat absence as "no brand kit
 * configured" and fall back to their normal defaults. Malformed JSON also
 * returns null (we don't want a syntax slip in a config file to break a
 * render); the agent surfaces the issue separately via `validateBrandKit`.
 */
export declare function loadBrandKit(cwd: string): BrandKit | null;
export interface BrandKitValidation {
    ok: boolean;
    /** Empty when ok=true. */
    errors: string[];
    /** Warnings don't block; they surface "you set logo but the file doesn't exist" cases. */
    warnings: string[];
}
/**
 * Validate a brand kit. Returns structured findings the agent can surface.
 * Doesn't throw — caller decides whether to gate.
 *
 * Strict checks (errors):
 *   - any path field that isn't a string
 *   - any color that isn't 6-hex chars
 *
 * Soft checks (warnings):
 *   - referenced files that don't exist on disk
 */
export declare function validateBrandKit(kit: BrandKit, cwd: string, fileExists?: (absPath: string) => boolean): BrandKitValidation;
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