import type { Thickness } from '../../../contracts/material.js';
/** The 16 4.x optical props deleted in 5.0 (REQ-MAT-24; type errors on Surface). */
export declare const OPTICAL_NOOP: readonly ["caustics", "chromatic", "lighting", "ior", "tier", "depth", "tint", "glowIntensity", "glowColor", "optimization", "hardwareAcceleration", "intensity", "blur", "parallax", "magnet", "cursorHighlight"];
/** Adapter-local props with no 5.0 mapping (warnings keep the original names). */
export declare const EXTRA_NOOP: readonly ["rounded", "radius", "glow", "hover", "press", "animation", "performanceMode", "liftOnHover", "hoverLift", "hoverSheen", "focusRing", "disabled", "size", "enableMicroInteractions", "enableParallax", "enableReflection", "environmentAdaptation", "motionResponsive", "adaptToMotion", "adaptToContent", "contrastLevel", "performanceLevel", "quality", "showDebug", "onContrastAdjustment", "onBackdropAnalysis", "tintMode", "sheen", "enableTilt", "material", "morph", "samplingStrategy", "insideEffectGroup", "contrastPolicy", "asChild", "shape", "fallbackRadius", "active", "height", "targetRef", "observeScroll", "asContainer", "edgeClassName", "edgeStyle", "containerClassName", "containerStyle", "onOpenChange"];
/** One DEP-M id per compat adapter (fragments/deprecations/mat.ts, MAT-351/352
 *  rows DEP-M0805..DEP-M0815). */
export declare const ADAPTER_DEPRECATION_IDS: {
    readonly OptimizedGlass: "DEP-M0805";
    readonly GlassAdvanced: "DEP-M0807";
    readonly OptimizedGlassAdvanced: "DEP-M0808";
    readonly LiquidGlassMaterial: "DEP-M0809";
    readonly GlassCore: "DEP-M0810";
    readonly GlassPrimitive: "DEP-M0811";
    readonly LiquidGlassEffectGroup: "DEP-M0812";
    readonly LiquidGlassScrollEdge: "DEP-M0813";
    readonly LiquidGlassConcentricFrame: "DEP-M0814";
    readonly LiquidGlassLayerProvider: "DEP-M0815";
};
export type CompatAdapter = keyof typeof ADAPTER_DEPRECATION_IDS;
/**
 * Partition `rest` into the DOM props that still pass through and the dropped
 * props. When any prop drops, fires warnDeprecated with the adapter's DEP-M id
 * (once per id per session). Returns the surviving props object (mutated copy —
 * callers must not reuse `rest` afterwards).
 */
export declare function dropNoopProps(adapter: CompatAdapter, rest: Record<string, unknown>, extraDropped?: string[]): Record<string, unknown>;
/** REQ-MAT-24: elevation 0|1 -> 'thin', 2 -> 'regular', 3+ -> 'thick'.
 *  Accepts 4.x 'levelN' strings and bare numbers. */
export declare function elevationToThickness(elevation: string | number | undefined): Thickness | undefined;
/** LiquidGlassMaterial `thickness` (0-8 px) -> the same 5.0 bands. */
export declare function thicknessNumberToThickness(thickness: number | undefined): Thickness | undefined;
/** 4.x pixel spacing -> the 5.0 4pt-grid SpaceToken (nearest grid step). */
export declare const SPACE_TOKENS: readonly ["0", "1", "2", "3", "4", "5", "6", "8", "10", "12", "16"];
export declare function pxToSpaceToken(spacing: number | string | undefined): (typeof SPACE_TOKENS)[number] | undefined;
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