Design a light-mode mobile app interface screen: tactile porcelain surfaces floating in a morning lavender mist.
LAYOUT
The view is a single vertically scrollable column with 16px horizontal screen gutters. It begins with a prominent header and quick-action tool, descends into a full-bleed rounded hero banner, transitions through a 5-item horizontal category bar, and finishes in stacked vertical theme cards with right-aligned mockups.
PALETTE (use these exact hex values)
- #F6F8FD — Canvas Ice: Global application viewport background beneath floating cards
- #FFFFFF — Porcelain White: Primary card, category pill, and elevated container surface
- #161C38 — Ink Navy: Page headings, card titles, and active nav labels
- #7C88A2 — Muted Slate: Subtitles, descriptive copy, and placeholder text
- linear-gradient(135deg, #7C9EF7 0%, #B896EB 55%, #E9BBD9 100%) — Hero Aurora Gradient: Promotional banner backdrop displaying 3D multi-layered device renders
- #4E65F6 — Iris Blue: Active category outlines, 01 badge text, and primary indicators
- #E9EFFF — Mist Blue Tint: Background fill for index 01 step badge
- #F2ECFE — Soft Lilac Tint: Background fill for index 02 step badge
- #8B63F3 — Royal Lilac: Index 02 badge text and secondary theme indicator line
TYPOGRAPHY
Typeface Plus Jakarta Sans (or Inter, SF Pro Display, Poppins), weights 400/500/600/700. Sizes 12px caption, 14px body-sm, 16px body, 18px subheading, 22px heading, 34px display. Tracking -0.02em at display, 0.01em at body. The typographic tone is ultra-modern, approachable, and polished. Plus Jakarta Sans provides crisp geometric apertures and tall x-height that feel premium yet effortless. If substituting, choose humanist-infused sans typefaces like Inter or SF Pro to preserve the clarity of compact mobile data.
GEOMETRY & SPACING
Corner radii — cards 24px, links 999px, inputs 16px, buttons 18px. Spacing on a 4px unit, 16px gaps, 24px between sections, 390px container, comfortable density.
DEPTH
Depth is achieved through ultra-diffuse ambient occlusion rather than directional light. Cards cast broad, barely perceptible shadows (e.g. 0 12px 32px rgba(22,28,56,0.04)) across the ice-white canvas. The 3D device renders cast their own miniature soft contacts directly onto the card surfaces.
IMAGERY
Imagery relies strictly on isometric, glossy 3D smartphone models with ultra-clean bevels and dreamlike screen gradients (lavender, peach, sky blue). Flat photography, photo-realistic human imagery, or sharp vector clip-art would severely disrupt the cohesive ethereal hardware language.
SIGNATURE DETAIL — the thing that makes this design itself
The layered, floating 3D phone fan mockup that bursts out of soft pastel gradient cards. It bridges hardware realism with abstract UI color theory, immediately communicating customization. It is misused if replaced with flat 2D screenshots or hard rectangular asset frames.
MUST
- Wrap all major groupings into self-contained white cards with 24px border radius.
- Use soft, multi-stop pastel gradients exclusively for theme showcases and hero assets.
- Maintain high typographic contrast: heavy dark-indigo headings over slate body copy.
- Allow 3D device artwork to slightly break standard inner card paddings for depth.
AVOID
- Never use pitch-black (#000000) for text; always use ink-navy (#161C38).
- Do not apply harsh, dark drop shadows; blur radii must stay wide and opacities under 8%.
- Avoid sharp or low-radius corners (anything below 12px contradicts the plush aesthetic).
- Never use pure neutral greys; all neutrals must have slight blue or periwinkle undertones.
OUTPUT
Render as a clean, pixel-crisp UI design at roughly 1280:3840. Flat vector rendering, real legible text, no browser chrome, no device mockup frame, no watermark, no lorem ipsum placeholder blocks. Try in DraPub 
