/**
 * SSR-safe base classes for browser globals that are not available in Node/SSR environments.
 *
 * Use these instead of extending browser globals directly so that class definitions
 * do not throw a ReferenceError at module evaluation time in SSR/Node contexts
 * (SvelteKit, Next.js, etc.).
 *
 * In browser environments each constant is the real global; in SSR it falls back
 * to a plain empty class so that `class Foo extends HTMLElementBase` is valid.
 */
/** True when running in an SSR/Node environment (no browser globals). */
export declare const SSR: boolean;
/** SSR-safe base class for web components. */
export declare const HTMLElementBase: typeof HTMLElement;
/** SSR-safe base class for pointer events. */
export declare const PointerEventBase: typeof PointerEvent;
/** SSR-safe base class for keyboard events. */
export declare const KeyboardEventBase: typeof KeyboardEvent;