/**
 * Tailwind v4 @theme generator — emits a CSS file with Tailwind v4 syntax.
 *
 * Tailwind v4 replaces tailwind.config.js with CSS-first configuration:
 *   @theme {
 *     --color-primary: #0066ff;
 *     --spacing-md: 1rem;
 *     ...
 *   }
 *
 * This is the modern (2025+) target. tailwind.config.js is dead.
 */
import type { DesignToken } from "../engine/registry.js";
/**
 * Generate a Tailwind v4 CSS file with an @theme block mapped from tokens.
 *
 * Token name conventions:
 *   - `color.primary` → `--color-primary`
 *   - `spacing.md` → `--spacing-md`
 *   - `radius.lg` → `--radius-lg`
 *   - `shadow.card` → `--shadow-card`
 */
export declare function generateTailwindV4Theme(tokens: DesignToken[]): string;