/**
 * Reliable consumer overrides for hardcoded layout defaults, WITHOUT tailwind-merge.
 *
 * `cn` is plain clsx (tailwind-merge was deliberately dropped in Phase 0), so it only concatenates —
 * it does not dedupe conflicting utilities. When a component hardcodes a default like `px-4` and a
 * consumer passes `className='px-0'`, BOTH land in the class list and Tailwind emits them in its own
 * fixed order (not DOM order), so the consumer's class does not reliably win. The curated-library fix
 * is per-component: DROP the hardcoded default for an axis when the consumer already sets that axis.
 *
 * Usage — gate each hardcoded default by the axis it occupies:
 *   cn('base', !consumerOverrides(className, 'padding-x') && 'px-4', className)
 *
 * See the `ui-core-mui-free-migration` skill ("consumer className can't override a component default").
 */
/** The layout axes a component default can occupy and a consumer can legitimately override. */
export type ClassAxis = 'padding' | 'padding-x' | 'padding-y' | 'margin' | 'width' | 'max-width' | 'display';
/**
 * True when `className` already sets a utility on `axis` — so the component should omit its own
 * hardcoded default for that axis and let the consumer's class take effect.
 */
export declare const consumerOverrides: (className: string | undefined, axis: ClassAxis) => boolean;