/** Pure helpers for provider-neutral CSS cache parsing and diagnostics. */
interface ParsedProjectCSSCacheEntry {
    css: string;
    hash: string;
    candidatesHash: string;
}
interface CSSErrorDescriptor {
    title: string;
    message: string;
    suggestion: string;
}
type ProjectCSSLocalCacheState = "miss" | "expired" | "mismatch" | "hit";
export declare function parseProjectCSSCacheEntry(raw: string): ParsedProjectCSSCacheEntry | undefined;
export declare function evaluateProjectCSSLocalCacheState(entry: {
    expiresAt: number;
    candidatesHash: string;
} | undefined, candidatesHash: string, now?: number): ProjectCSSLocalCacheState;
export declare function formatCSSErrorMessage(message: string): CSSErrorDescriptor;
export {};
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