import { LitElement } from "lit";
import type { PropertyValues, TemplateResult } from "lit";
export interface FormResult {
    valid: boolean;
    values: Record<string, unknown>;
}
/**
 * @fires submit - Fired when the form is submitted with its values in `detail`.
 */
export declare class XmForm extends LitElement {
    static styles: CSSStyleSheet[];
    disabled: boolean;
    readonly: boolean;
    /** Each touched child's OWN readonly, snapshotted before the form ever sets it,
        so OR-propagation never clears a child's intrinsic readonly. */
    private readonly _ownReadonly;
    connectedCallback(): void;
    disconnectedCallback(): void;
    protected updated(changed: PropertyValues<this>): void;
    /** The slotted, form-associated children — discovered via the light DOM, never
        by querying any child's shadow root (AD-12). */
    private get _fields();
    /** Read one child's current value by its kind (toggle / file / value field). */
    private _readValue;
    private _isToggle;
    /** A child is invalid if it carries error copy OR is required-but-empty. */
    private _isInvalid;
    /** Public read contract: pull each child's live value at read time (children
        are uncontrolled — the form does not drive their renders, AD-6). */
    validate(): FormResult;
    /** Imperative submit — same path the submit button / Enter take. */
    submit(): FormResult;
    private _onChildSubmit;
    private _onKeydown;
    private _propagate;
    render(): TemplateResult;
}
declare global {
    interface HTMLElementTagNameMap {
        "xm-form": XmForm;
    }
}