Marketing site now renders product previews as live HTML

The hero and the how-it-works section on our marketing site used to use static image exports of the admin UI. Those exports were locked to dark mode, baked into a single locale, and went stale every time we shipped a real UI change.

We replaced them with live HTML and CSS mockups that render in the browser. The hero shows an accurate admin articles view; the how-it-works walks through four variants — basic, content, metadata, status — each as a real component.

Wins:

• The previews automatically adapt to light and dark mode with the rest of the page.
• They render in both English and Spanish from the same component.
• When we change the admin UI, the previews update in the same release — no more stale screenshots.

If you've landed on the marketing site in the last week, the homepage feels meaningfully more alive.