export type ProjectCssVariableDefinitions = Record<string, string>;
export declare const CSS_VARIABLE_NAME_PATTERN: RegExp;
export declare const CSS_VARIABLE_NAME_MAX_LENGTH = 200;
export declare const isCssVariableName: (value: unknown) => value is string;
/** Drop invalid names and values that could not be a CSS token definition. */
export declare const sanitizeProjectCssVariablesCatalog: (variables: ProjectCssVariableDefinitions | null | undefined) => ProjectCssVariableDefinitions;
export declare const SKIP_CSS_VARIABLE: unique symbol;
/**
 * If the leaf declares `cssVariable`, look it up in the catalog. A declared
 * token never falls back to a sibling literal (web contract). Unresolved /
 * invalid tokens skip the property.
 */
export declare const resolveCssVariableLeaf: (value: unknown, catalog: ProjectCssVariableDefinitions) => unknown;
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