import type { FullVariantDef } from './types';
/**
 * Neptune: same UI structure as fullPage, with a dynamic animated background gradient.
 * - Before first message: bottom glow (radial, white → primary → transparent).
 * - After first message: full-page gradient (bottom → primary → near black).
 * Background is rendered by NeptuneBackground in Full.tsx; layout uses transparent chat + dark base.
 */
export declare const neptune: FullVariantDef;