# Basic Accordion · Smooth UI

The acquired original files are unchanged. Source revision: df0453c967224a91d460aa3bd1786c737c2c95bc. Each exact file hash and any demo content revision is recorded in provenance.json. Keep all included license notices.

- The exact author component is preserved. The baseline CDN demo had no license declaration, so the same author's official MIT example is the runtime entry; the unauthorized baseline is not redistributed.
- The official example has three FAQ items, a heading, max-w-2xl and p-6. Its copy and spacing differ from the historical 21st max-w-xl p-4 demo, and that identity difference is explicit.
- Both examples use allowMultiple=true and defaultExpandedIds=[1]. Reduced-motion handling and inert collapsed content are original component behavior. Local fallback theme tokens are host support.
- Host spacing and fallback tokens come from runtime/author-styles.css. These tokens are local integration support, not original design-system defaults.

Open the standalone HTML to run with all JavaScript and CSS bundled locally. ?theme=light and ?theme=dark select the host theme. The parent gallery must use an opaque allow-scripts sandbox. No external requests are required.

For source reuse, start with Usage.tsx and the unchanged baseline demonstration. Resolve @/ imports to their included matching author files and install the exact package versions in provenance.json. The host mount and styles are supplied for reference.

Build success and the ready message do not prove runtime or accessibility behavior. Browser validation is recorded separately.