/**
 * Copyright 2026 Adobe. All rights reserved.
 * This file is licensed to you under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License. You may obtain a copy
 * of the License at http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software distributed under
 * the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR REPRESENTATIONS
 * OF ANY KIND, either express or implied. See the License for the specific language
 * governing permissions and limitations under the License.
 */
/**
 * CSS selector strings for matching focusable and tabbable DOM elements
 * per the HTML specification.
 *
 * These selectors use standard HTML focusability rules only — the 1st-gen
 * custom `[focusable]` attribute selector is intentionally not included,
 * as native `delegatesFocus` replaces that workaround.
 */
/**
 * Matches elements that can receive focus programmatically (via `.focus()`).
 *
 * Includes elements with `tabindex="-1"` which are focusable via script
 * but not reachable via the Tab key.
 *
 * @example
 * ```typescript
 * const firstFocusable = shadowRoot.querySelector(focusableSelector);
 * ```
 */
export declare const focusableSelector: string;
/**
 * Matches elements reachable via the Tab key.
 *
 * This is a subset of {@link focusableSelector} that excludes elements
 * with `tabindex="-1"` (which are focusable via script but not tabbable).
 *
 * @example
 * ```typescript
 * const tabbableElements = [...container.querySelectorAll(tabbableSelector)];
 * ```
 */
export declare const tabbableSelector: string;