AgentSkillsCN

n26-ui-skills

N26 的 UI 设计系统。在构建受 N26 美学启发的界面时使用——深色模式、Inter 字体、4px 网格。

SKILL.md
--- frontmatter
name: n26-ui-skills
description: N26's UI design system. Use when building interfaces inspired by N26's aesthetic - dark mode, Inter font, 4px grid.
license: MIT
metadata:
  author: design-skills
  version: "1.0.0"
  source: https://n26.com

N26 UI Skills

Opinionated constraints for building N26-style interfaces with AI agents.

When to Apply

Reference these guidelines when:

  • •Building dark-mode interfaces
  • •Creating N26-inspired design systems
  • •Implementing UIs with Inter font and 4px grid

Colors

  • •MUST use dark backgrounds (lightness < 20) for primary surfaces - detected lightness: 0
  • •MUST use #000000 as page background (surface-base)
  • •MUST use #116F64 for primary actions and focus states (accent)
  • •SHOULD reduce color palette (currently 18 colors detected)
  • •MUST maintain text contrast ratio of at least 4.5:1 for accessibility

Semantic Tokens

TokenHEXRGBUsage
surface-base#000000rgb(0,0,0)Page background
surface-raised#929493rgb(146,148,147)Cards, modals, raised surfaces
surface-overlay#E0E0E0rgb(224,224,224)Overlays, tooltips, dropdowns
text-primary#555555rgb(85,85,85)Headings, body text
text-secondary#436960rgb(67,105,96)Secondary, muted text
text-tertiary#588378rgb(88,131,120)Additional text
border-default#D3D3D3rgb(211,211,211)Subtle borders, dividers
accent#116F64rgb(17,111,100)Primary actions, links, focus

Typography

  • •MUST use Inter as primary font family
  • •SHOULD use single font family for consistency
  • •MUST use 46px / extra_bold for primary headings
  • •MUST use 27px / 500 for body text
  • •SHOULD reduce font weights (currently 4 detected)
  • •MUST use text-balance for headings and text-pretty for body text
  • •SHOULD use tabular-nums for numeric data
  • •NEVER modify letter-spacing unless explicitly requested

Text Styles

StyleFontSizeWeightColorCount
heading-1Inter46pxextra_bold#D9DBD71
text-32pxInter32px500#3939391
bodyInter27px500#A09D981
text-23pxInter23px500#5454541
text-14pxInter14px400#5A8C831
text-13pxInter13px400#6161611
text-13pxInter13px400#5959591
text-12pxInter12px300#7C7C7C1
text-12pxInter12px400#9FD4D01
text-11pxInter11px400#5555551

Typography Reference

Font Families:

  • •Inter (used 36x)

Font Sizes: 7px, 8px, 9px, 10px, 11px, 12px, 13px, 14px, 23px, 27px, 32px, 46px

Spacing

  • •MUST use 4px grid for spacing
  • •SHOULD use spacing from scale: 2px, 3px, 5px, 6px, 7px, 8px, 25px, 35px
  • •SHOULD use 5px as default gap between elements
  • •NEVER use arbitrary spacing values (use design scale)
  • •SHOULD maintain consistent padding within containers

Borders

  • •MUST use border-radius from scale: 1px, 3px, 5px
  • •MUST use 1px border width consistently
  • •SHOULD use 5px as default border-radius
  • •NEVER use arbitrary border-radius values (use design scale)
  • •SHOULD use subtle borders (1px) for element separation

Border Radius Reference

Scale: 1px, 3px, 5px

Layout

  • •MUST design for 1920px base viewport width
  • •SHOULD use consistent element widths: 35px, 41px, 54px, 15px, 14px
  • •SHOULD maintain text-heavy layout with clear hierarchy
  • •NEVER use h-screen, use h-dvh for full viewport height
  • •MUST respect safe-area-inset for fixed elements
  • •SHOULD use size-* for square elements instead of w-* + h-*

Detected Layout Patterns

  • •Header: height: 72px
  • •Main Content: width: 1920px, height: 1009px

Components

Buttons

VariantBackgroundTextBorderHeightRadius
Ghosttransparent#436960none--

Interactive States

Focus

  • •MUST use 2px outline with accent color (#116F64)
  • •MUST use 2px outline-offset
  • •NEVER remove focus indicators

Hover

  • •Buttons (primary): lighten background by 10%
  • •Buttons (secondary): use #929493 background
  • •List items: use #929493 background

Disabled

  • •MUST use opacity: 0.5
  • •MUST use cursor: not-allowed

Interaction

  • •MUST use an AlertDialog for destructive or irreversible actions
  • •SHOULD use structural skeletons for loading states
  • •MUST show errors next to where the action happens
  • •NEVER block paste in input or textarea elements
  • •MUST add an aria-label to icon-only buttons

Animation

  • •NEVER add animation unless it is explicitly requested
  • •MUST animate only compositor props (transform, opacity)
  • •NEVER animate layout properties (width, height, top, left, margin, padding)
  • •SHOULD use ease-out on entrance animations
  • •NEVER exceed 200ms for interaction feedback
  • •SHOULD respect prefers-reduced-motion

Performance

  • •NEVER animate large blur() or backdrop-filter surfaces
  • •NEVER apply will-change outside an active animation
  • •NEVER use useEffect for anything that can be expressed as render logic