/**
 * @packageDocumentation
 *
 * CSS-related helpers for working with design tokens.
 */
/**
 * Extract the CSS variable name from a `var()` expression.
 *
 * @param value - CSS value potentially containing a `var()` reference.
 * @returns The CSS custom property name (e.g., `--color-primary`) or `null` when the value is not a valid `var()` expression.
 */
export declare function extractVarName(value: string): string | null;
export declare function pointerToVarName(pointer: string): string;
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