/**
 * Minimal DOM and SVG helpers.
 *
 * Deliberately dependency-free and namespace-correct: `createElement` on an SVG
 * tag silently produces an unrenderable HTML element, which is a bug class worth
 * designing out rather than debugging.
 *
 * @module utils/dom
 */
export declare const SVG_NS = "http://www.w3.org/2000/svg";
export declare const XHTML_NS = "http://www.w3.org/1999/xhtml";
/** Attribute values accepted by {@link setAttrs}. */
export type AttrValue = string | number | boolean | null | undefined | Partial<CSSStyleDeclaration> | Record<string, string | number> | ((event: Event) => void);
export type Attrs = Record<string, AttrValue>;
/**
 * Create an SVG element in the correct namespace.
 */
export declare function svg<K extends keyof SVGElementTagNameMap>(tag: K, attrs?: Attrs, children?: (Element | null)[]): SVGElementTagNameMap[K];
export declare function html<K extends keyof HTMLElementTagNameMap>(tag: K, attrs?: Attrs, children?: (Node | null)[]): HTMLElementTagNameMap[K];
/**
 * Set attributes, with `class`, `style`, `text`, `dataset` and `on*` handled
 * specially. `null`, `undefined` and `false` are skipped so callers can pass
 * conditional values inline.
 */
export declare function setAttrs(el: Element, attrs: Attrs): void;
export declare function remove(el: Element | null | undefined): void;
export declare function empty(el: Element): void;
/**
 * Resolve a CSS size (`'100%'`, `400`, `'50vh'`) against a container.
 */
export declare function resolveSize(value: string | number | undefined, containerSize: number, fallback: number): number;
/**
 * Pointer position relative to an element, correct under CSS transforms and
 * scrolling, which `offsetX` is not.
 */
export declare function pointerPosition(el: Element, event: MouseEvent | Touch): [number, number];
export declare function escapeHtml(text: unknown): string;
/**
 * Whether a usable DOM exists. Guards every render path so the bundle stays
 * importable under SSR.
 */
export declare function hasDom(): boolean;
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