# Hovercard.State

Current hovercard identity and visibility.

## Signatures

```ts
export interface State {
    readonly id: string;
    readonly open: boolean;
}
```

## Why

A stable id links the anchor to focusable native popover content while state
remains renderer-independent.

## Ownership and lifetime

Plain data retains no resources; RefSubject observation is Scope-owned.

## Property: id

Stable id used by `aria-controls` and content.

## Property: id: Why

Deterministic identity preserves server/client DOM relationships.

## Property: id: Ownership and lifetime

Plain data acquires no resources.

## Property: open

Whether the hovercard is open.

## Property: open: Why

One value coordinates delayed interactions and native popover state.

## Property: open: Ownership and lifetime

Plain data acquires no resources.