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# Build brief — an original features section in the taste of OpenSea
> Reference: [screenshot](https://uidiscovery.com/media/captures/opensea/s-08.webp) (2880×656, 1440px viewport @2x) · UIDiscovery: https://uidiscovery.com/sections/opensea-8 · source https://opensea.io
## Goal
Build an original features section for **[the user's brand]**. Its job: explain the key benefits, grouped so each can be scanned in seconds.
## Originality rules
- Never reuse OpenSea's logo, name, product imagery, illustrations, icons, screenshots or copy. Write new copy for the user's product.
- If the user hasn't said what their product is, ask first (or use clearly marked placeholders like [Brand], [Product], [Audience]).
## Layout
- Pattern: section title over a grid or alternating rows of benefit items. Compact band (328px at 1440), page background; 7 images/icons (a set of cards or a small gallery); primary + secondary button.
- Content slots: Section title; 2 items: icon or visual + short title + 1–2 line description; Primary + secondary action.
- Responsive: stack columns below 768px keeping the order heading → body → action → visual; test at 390 / 768 / 1440px.
## Design tokens
- Colour: section background `#101011`, text `#ffffff` (19.0:1), accent `#0786ff` (5.3:1), surface `#101011`, muted `#ffffff`. Keep the mood; swap the accent for the user's brand colour.
- Type: headings **Inter Tight** (stand-in for Gt America), body **Inter Tight** (stand-in for Gt America).
- Shape: On dark, separate layers with 1px borders at ~8–12% white and soft glows instead of drop shadows. Read exact corner radius, border and shadow treatment from the screenshots.
- Full tokens (CSS/Tailwind): https://uidiscovery.com/api/v1/sites/opensea/tokens?format=tailwind
## Imagery
Best guess: mostly **product UI screenshots/mockups** (dark, cool, Crypto & Web3). Inferred from element counts, colours and industry — not from the pixels — so open the linked screenshots and match the real style before sourcing anything.
### Slot 1 · Features → product UI (uncertain)
- Crypto & Web3 features with 7 image elements — most likely product UI screenshots/mockups plus icons. Count: a set of ~7 in one consistent style. Aspect: 4:3. Look first: [ref 1](https://uidiscovery.com/media/captures/opensea/s-08.webp)
- **Stock** — “laptop blank screen minimal desk”: [Unsplash](https://unsplash.com/s/photos/laptop-blank-screen-minimal-desk?orientation=landscape) · [Pexels](https://www.pexels.com/search/laptop%20blank%20screen%20minimal%20desk/?orientation=landscape) · [Pixabay](https://pixabay.com/images/search/laptop%20blank%20screen%20minimal%20desk/?orientation=horizontal)
- **Generate** — `Product-shot backdrop for a UI screenshot: smooth dark gradient from #101011 to #101011 with a soft #0786ff glow behind the centre, subtle floor shadow, empty centre area where a screenshot will be placed. Lighting: low-key, moody directional light with deep shadows. Aspect ratio 4:3. No text, no letters, no logos, no watermarks, no brand marks or trademarked products, no recognisable real people. No UI elements.`
- Build the UI itself in HTML/CSS with realistic sample data from YOUR product (or screenshot your real app). Don't generate UI as an image and don't reuse the reference's screenshots. Stock/AI is only for the backdrop or device frame.
### If the screenshots show a different style
Open the refs first and name what you actually see (photo / product UI / illustration / abstract gradient or 3D / type only). If it differs from the guess, switch routes — UI is built in code, type-only needs no image, otherwise:
- **photography** — generate `Photograph: abstract gradient mesh. Composition: wide shot, subject off-centre to one side, generous clean negative space for the headline. Lighting: low-key, moody directional light with deep shadows. Cool colour grade that sits on #101011, #0786ff. Photorealistic, natural textures, shallow depth of field, 35mm lens. Aspect ratio 3:2. No text, no letters, no logos, no watermarks, no brand marks or trademarked products, no recognisable real people.`
- **abstract 3D / gradient** — generate `Abstract 3D render: soft, glossy glass-like shapes and a smooth gradient in #0786ff and #ffffff on a #101011 background. Lighting: low-key, moody directional light with deep shadows; cool tone. Minimal and calm, generous negative space on one side for text. Aspect ratio 3:2. No text, no letters, no logos, no watermarks, no brand marks or trademarked products, no recognisable real people.`
- **Licences:** check each stock image's licence page (Unsplash/Pexels licences, Pixabay Content License), credit when asked, avoid logos, brands and identifiable people; check your image model's commercial terms; never reuse the reference's own images or logos.
## Acceptance checklist
- [ ] Responsive at 390px, 768px and 1440px — no horizontal scroll, tap targets ≥ 44px on mobile.
- [ ] Colour contrast WCAG AA: 4.5:1 body text, 3:1 large text and UI; visible focus states; full keyboard navigation.
- [ ] Semantic HTML: one <h1>, ordered headings, landmarks (header/nav/main/footer), labelled form fields, alt text on meaningful images.
- [ ] Originality: no copied logos, images, illustrations or copy from the reference; every image licensed or generated; credits recorded.
If you use Next.js + Tailwind: one server component for the section, next/image with explicit sizes, next/font for type, Tailwind v4 @theme tokens from the link above.
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Whole-site brief: https://uidiscovery.com/api/v1/brief?slug=opensea · MCP `get_design_brief({ id: "opensea-8" })`, `get_image_plan({ id: "opensea-8" })`. Cite the reference as https://uidiscovery.com/sections/opensea-8.
