import type { Root } from "postcss";
import postcss from "postcss";
/**
 * Extracts CSS variables from a specific selector in a CSS file
 * @param cssFilePath Path to the CSS file
 * @param selector The CSS selector to extract variables from (e.g., ":root", ".dark")
 * @returns Map of CSS variables and their values
 */
export declare function extractVariablesFromCSS(cssFilePath: string, selector: string): Map<string, string>;
/**
 * Gets the appropriate CSS variables for the detected Tailwind version
 * @param version The Tailwind CSS version
 * @returns Object containing root and dark variables
 */
export declare function getTailwindVariables(version: string | null): {
    rootVars: Map<string, string>;
    darkVars: Map<string, string>;
};
/**
 * Extracts utilities from @layer utilities section
 */
export declare function extractUtilitiesFromLayer(cssFilePath: string): postcss.Rule[];
/**
 * Extracts @theme blocks from CSS
 */
export declare function extractThemeBlocks(root: Root): Map<string, string>;
/**
 * Extracts @variant definitions from CSS
 */
export declare function extractVariants(root: Root): Map<string, string>;
/**
 * Extracts @utility definitions from CSS
 */
export declare function extractUtilities(root: Root): Map<string, postcss.AtRule>;
/**
 * Extracts @custom-variant definitions from CSS (v4 syntax)
 */
export declare function extractCustomVariants(root: Root): Map<string, string>;
/**
 * Extracts all v4 configuration from registry file
 */
export declare function extractV4Configuration(cssFilePath: string): {
    variables: Map<string, string>;
    darkVariables: Map<string, string>;
    themeVars: Map<string, string>;
    variants: Map<string, string>;
    customVariants: Map<string, string>;
    utilities: Map<string, postcss.AtRule>;
};
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