Design a dark-mode mobile app interface screen: midnight adrenaline rush packaged in carbon fiber, electric blue sparks, and floating product cutouts.
LAYOUT
The mobile screen follows an editorial-to-commerce vertical hierarchy: top bar with core utilities, an expansive promotional hero card, horizontal category navigation icons, followed by horizontal snap-scrolling product carousels anchored by crisp section headers.
PALETTE (use these exact hex values)
- #070B12 — Obsidian Canvas: Root background canvas providing high-contrast depth for white text and colorful products
- #121824 — Card Slate: Elevated surface used on hero banner backing and product card tiles
- #1D64ED — Cobalt Velocity: Primary interactive color for hero buttons, active selection rings, prices, and bag badges
- #FFFFFF — Pure White: High-emphasis typography, primary icon fills, and active indicator dots
- #7E8A9B — Muted Steel: Secondary product labels, inactive pagination indicators, and subtitle descriptions
- #101620 — Icon Surface: Background fill for circular category navigation items
- #22D3EE — Nitro Cyan: Color swatch dot and footwear accent detail
- #FF5238 — Racer Coral: Color swatch dot for warm variant indicators
TYPOGRAPHY
Typeface Barlow Condensed (or Oswald, DIN Condensed, Anton), weights 700/800. Sizes 10px caption, 12px body-sm, 13px body, 15px subheading, 20px heading, 38px display. Tracking -0.01em. The typographic identity pairs high-octane speed with engineered utility. The campaign display font feels aggressive, condensed, and architectural like competitive race jersey numbers, while the UI font (Inter/SF Pro) provides sterile, high-legibility clarity for commerce metadata.
GEOMETRY & SPACING
Corner radii — cards 16px, links 999px, inputs 12px, buttons 10px. Spacing on a 4px unit, 12px gaps, 28px between sections, 390px container, comfortable density.
DEPTH
Depth is created strictly through tone mapping rather than cast drop shadows. Surface layers step subtly from the root canvas (#070B12) up to container surfaces (#121824), allowing bright photographic content and luminous cobalt elements to emerge naturally from the dark plane.
IMAGERY
Photography emphasizes high-velocity outdoor action with gritty textures, trail dust, and dramatic directional natural sunlight. Product imagery consists exclusively of clean, isolated transparent cutouts of high-tech gear (apparel, shoes, bikes) floating inside the dark card enclosures.
SIGNATURE DETAIL — the thing that makes this design itself
The circular category icon row with a radiant cobalt focus ring (#1D64ED) paired with high-contrast floating product silhouettes on slate-toned cards. Misusing this means applying generic rounded rectangles for categories or placing product images inside boxy photographic frames rather than floating cutouts.
MUST
- Use pure obsidian (#070B12) as the base canvas to establish dramatic sports contrast.
- Reserve vibrant cobalt (#1D64ED) exclusively for primary CTAs, active states, and prices.
- Pair condensed bold display headers on editorial heroes with clean geometric sans body copy.
- Float transparent cutout product images inside slate cards without clipping their bounds.
AVOID
- Do not use light or white card containers; keep all structural surfaces deep slate (#121824).
- Never apply colored borders to inactive category buttons; active rings only.
- Avoid heavy drop shadows; create depth purely through surface luminance transitions.
- Do not stretch condensed display typography outside of major campaign billboard heroes.
OUTPUT
Render as a clean, pixel-crisp UI design at roughly 1504:3840. Flat vector rendering, real legible text, no browser chrome, no device mockup frame, no watermark, no lorem ipsum placeholder blocks. Try in DraPub 
