Design a dark-mode mobile app interface screen: quiet midnight fintech with glowing emerald accents and soft squircle precision.
LAYOUT
Mobile single-column feed with a 16px horizontal margin. Top bar holds personal greeting and circular notification bell with badge. It flows downwards into the hero balance module, followed by a 4-item horizontal action grid, an accounts multi-row card, a monthly insight card, and a recent transactions list.
PALETTE (use these exact hex values)
- #070d14 — Obsidian Canvas: Global application viewport background and status bar fill.
- #0e1724 — Card Surface: Primary surface fill for modular cards, list rows, and action button backings.
- #1a2636 — Surface Border: Thin perimeter boundaries delineating cards and nested containers.
- #4be1a1 — Mint Accent: Primary brand highlight, sparkline stroke, active progress arcs, and positive change deltas.
- #102a28 — Deep Petrol Surface: Background container fill for primary active action buttons.
- #132238 — Deep Blue Surface: Background container fill for secondary actions and savings card badges.
- #ffffff — Primary Text: High-emphasis typography, primary balances, card titles, and bold numbers.
- #7f93a7 — Muted Text: Secondary labels, timestamps, metadata, and masked card numbers.
TYPOGRAPHY
Typeface SF Pro Display (or Inter, Plus Jakarta Sans), weights 400/500/600/700. Sizes 11px caption, 13px body-sm, 14px body, 16px body-lg, 18px subheading, 20px heading, 32px display. Tracking -0.03em at display, 0 at caption. Technical, precise, and understated. The type system conveys institutional trust paired with modern fintech polish through neutral geometric proportions, clean circular punctuation, and heavy numeric weights for amounts.
GEOMETRY & SPACING
Corner radii — cards 20px, links 4px, inputs 12px, buttons 16px. Spacing on a 4px unit, 12px gaps, 24px between sections, 390px container, comfortable density.
DEPTH
Depth is created through luminosity contrast rather than physical drop shadows. Cards at #0e1724 gently step forward from the #070d14 background canvas, articulated by a faint #1a2636 stroke. High-priority cards (like the hero balance card) feature an ambient radial gradient in the lower corner using 5-10% opacity mint green.
IMAGERY
Icon-centric and vector-driven UI devoid of photographic clutter. Icons are refined 1.5px-to-2px monoline pictograms enclosed within soft squircle tiles. Merchant logos (e.g., Amazon) are rendered as crisp monochrome or minimal brand silhouettes inside dark utility squares.
SIGNATURE DETAIL — the thing that makes this design itself
The luminous mint-green sparkline ascending inside the dark obsidian hero balance card. Its gentle gradient tail and radiant terminal dot provide an immediate visual anchor of growth, perfectly counterbalanced by the bold tabular financial typography.
MUST
- Use mint green (#4be1a1) strictly for upward financial performance and key interactive targets.
- Maintain uniform 20px outer corner radius on all elevated surface cards.
- Frame secondary actions and row tiles in 14-16px squircle modules with deep navy/slate fills.
- Keep typography strictly sans-serif with tight letter-spacing on headline balances.
AVOID
- Never introduce harsh white drop shadows; rely on surface contrast and low-opacity mint glows.
- Do not use high-saturation red for negative numbers; keep it understated or neutral.
- Never use sharp 90-degree corners on buttons or cards.
- Avoid solid bright fills for large card surfaces; keep them dark obsidian.
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 
