//#region src/css/runtime.d.ts
/**
 * Development Mode CSS Runtime
 *
 * Provides runtime CSS injection for development mode.
 * In production, this module should NOT be included.
 *
 * Features:
 * - Dynamic CSS injection when rules are missing
 * - Warning mechanism for missing CSS rules
 * - Can be used as a fallback for hot-reload scenarios
 */
export interface CssRuntimeOptions {
  /** Warn in console when generating CSS at runtime (default: true) */
  warnOnGenerate?: boolean;
  /** Style element ID (default: "luna-dev-css") */
  styleId?: string;
  /** Whether to log each rule generation (default: false) */
  verbose?: boolean;
}
export interface CssRuntimeState {
  /** Generated CSS rules */
  rules: Map<string, string>;
  /** Style element for injection */
  styleEl: HTMLStyleElement | null;
  /** Whether initialized */
  initialized: boolean;
}
/**
 * Initialize the CSS runtime
 */
export declare function initCssRuntime(opts?: CssRuntimeOptions): void;
/**
 * Check if a CSS class exists in stylesheets
 */
export declare function hasClass(className: string): boolean;
/**
 * Generate CSS for a property:value declaration
 * Returns the class name
 */
export declare function css(property: string, value: string): string;
/**
 * Generate CSS for multiple property:value pairs
 * Returns space-separated class names
 */
export declare function styles(pairs: [string, string][]): string;
/**
 * Generate CSS for pseudo-class
 */
export declare function on(pseudo: string, property: string, value: string): string;
/**
 * Hover shorthand
 */
export declare function hover(property: string, value: string): string;
/**
 * Focus shorthand
 */
export declare function focus(property: string, value: string): string;
/**
 * Active shorthand
 */
export declare function active(property: string, value: string): string;
/**
 * Media query CSS generation
 */
export declare function media(condition: string, property: string, value: string): string;
/**
 * Responsive breakpoint shortcuts
 */
export declare const at_sm: (p: string, v: string) => string;
export declare const at_md: (p: string, v: string) => string;
export declare const at_lg: (p: string, v: string) => string;
export declare const at_xl: (p: string, v: string) => string;
export declare const dark: (p: string, v: string) => string;
/**
 * Get all generated CSS as a string
 */
export declare function getGeneratedCss(): string;
/**
 * Get count of generated rules
 */
export declare function getGeneratedCount(): number;
/**
 * Reset the runtime state (for testing)
 */
export declare function resetRuntime(): void;
/**
 * Combine multiple class names
 */
export declare function combine(classes: string[]): string;
//#endregion