/**
 * The **Theme Validator** — the security and correctness gate between raw LLM
 * (or imported) output and the live grid. It guarantees the engine never applies
 * an invalid or dangerous value:
 *
 *  1. **Unknown variables** (not in the {@link ThemeVariableRegistry}) are rejected —
 *     the AI can only touch real Photon tokens, never invented ones.
 *  2. **Malformed values** are rejected per the variable's {@link ThemeVariableType}
 *     (color / size / opacity / shadow / font / duration / easing / …).
 *  3. **Injection payloads** are rejected up front — any value containing CSS
 *     control characters or dangerous functions (`; { } url( expression
 *     javascript: @import <`) can never reach `setProperty`.
 *
 * It is pure and DOM-free, so it is trivially unit-testable and reused for both
 * generated and imported themes.
 *
 * @packageDocumentation
 */
import { ThemeVariableType } from '../../types/theme-ai.types';
import type { ThemeValidationResult, ThemeVariableRegistryReader } from '../../types/theme-ai.types';
/** Validates and sanitizes a raw variable map against the registry. */
export declare class ThemeValidator {
    private readonly registry;
    constructor(registry: ThemeVariableRegistryReader);
    /**
     * Validate a raw `{ cssVar: value }` map. Returns the accepted subset plus a
     * list of rejected entries with reasons. `valid` is `true` only when nothing
     * was rejected; the accepted subset is always safe to apply either way.
     */
    validate(rawVariables: unknown): ThemeValidationResult;
    /** Type-specific value grammar check (assumes the injection guard already passed). */
    static isValidForType(type: ThemeVariableType, value: string): boolean;
}
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