/**
 * Provider-neutral CSS generation and cache orchestration.
 *
 * Tailwind-named exports remain as compatibility aliases, but core neither
 * imports nor discovers Tailwind. An explicit CSSProcessor owns compilation;
 * an explicit CSSOptimizationEngine owns minification.
 */
import { type CSSOptimizationEngine } from "../../extensions/css/index.js";
import { type CSSCompilationSession } from "./tailwind-compiler-cache.js";
export { extractCandidates, extractCandidatesFromFiles } from "./candidate-extractor.js";
export { hashCSS } from "./css-identity.js";
export { getCompilerCacheStats, getCSSCompilationCacheIdentity, invalidateCompiler, } from "./tailwind-compiler-cache.js";
export { cacheCSSAsync, clearCSSCache, getCSSByHash, getCSSByHashAsync } from "./css-hash-cache.js";
export { initializeProjectCSSCache, invalidateProjectCSS, invalidateProjectCSSAsync, isProjectCSSCacheDistributed, } from "./project-css-cache.js";
export interface CSSGenerationResult {
    readonly css: string;
    readonly cacheIdentity: string;
}
/** Backward-compatible name for a provider-neutral CSS generation result. */
export type TailwindResult = CSSGenerationResult;
export interface CSSGenerationOptions {
    minify?: boolean;
    environment?: string;
    buildMode?: "development" | "production";
    projectSlug?: string;
}
/** Backward-compatible name for provider-neutral CSS generation options. */
export type GenerateOptions = CSSGenerationOptions;
export interface CSSErrorInfo {
    title: string;
    message: string;
    suggestion: string;
}
export interface CSSGenerationSession {
    readonly minify: boolean;
    readonly cacheIdentity: string;
    readonly compilationSession: CSSCompilationSession;
    readonly optimizationEngine?: CSSOptimizationEngine;
}
export interface CSSGenerationDependencies {
    readonly generationSession?: CSSGenerationSession;
}
/** Capture all output-affecting providers before the operation performs an await. */
export declare function acquireCSSGenerationSession(minify: boolean): CSSGenerationSession;
export declare function getProjectCSS(projectSlug: string, stylesheet: string | undefined, candidates: string[] | Set<string>, options?: CSSGenerationOptions, dependencies?: CSSGenerationDependencies): Promise<{
    css: string;
    hash: string;
    fromCache: boolean;
}>;
export declare function regenerateCSSByHash(expectedHash: string, projectSlug: string | undefined): Promise<string | undefined>;
export declare function generateTailwindCSS(stylesheet: string | undefined, candidates: string[] | Set<string>, options?: CSSGenerationOptions, dependencies?: CSSGenerationDependencies): Promise<CSSGenerationResult>;
export declare function formatCSSError(error: Error | string): CSSErrorInfo;
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