/**
 * Minimal browser / environment detection used by the floating-ui-react port.
 *
 * Mirrors `@base-ui/utils/detectBrowser` — only the subset the port actually
 * consumes is inlined here so we don't have to vendor a separate dependency.
 * Each flag matches the React source so behavior is 1:1.
 */
export declare const isAndroid: boolean;
export declare const isJSDOM: boolean;
/**
 * Umbrella flag: true in either jsdom or happy-dom. Code that guards on
 * test-env limitations (e.g. `matches(':focus-visible')` throwing) should
 * use this.
 */
export declare const isTestEnv: boolean;
export declare const isIOS: boolean;
export declare const isMac: boolean;
/**
 * Safari detection — mirrors `@base-ui/utils/detectBrowser`'s `isSafari`.
 * Uses `navigator.vendor` which is "Apple Computer, Inc." in Safari and
 * empty / different in Chrome/Firefox/Edge.
 */
export declare const isSafari: boolean;
/**
 * WebKit engine detection — mirrors `@base-ui/utils/detectBrowser`'s
 * `isWebKit`. Matches Safari AND other WebKit-shell browsers (WKWebView,
 * standalone iOS PWAs) without matching Chromium-based browsers (which
 * keep "AppleWebKit" in their UA for historical compat).
 */
export declare const isWebKit: boolean;
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