AgentSkillsCN

superhuman-ui-skills

Superhuman 的 UI 设计系统。当您希望打造受 Superhuman 美学启发的界面时使用——浅色模式、Inter 字体、4px 网格布局。

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

Superhuman UI Skills

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

When to Apply

Reference these guidelines when:

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

Colors

  • •SHOULD use light backgrounds for primary surfaces
  • •MUST use #C9B7FD as page background (surface-base)
  • •MUST use #BCBAFC for primary actions and focus states (accent)
  • •SHOULD reduce color palette (currently 24 colors detected)
  • •MUST maintain text contrast ratio of at least 4.5:1 for accessibility

Semantic Tokens

TokenHEXRGBUsage
surface-base#C9B7FDrgb(201,183,253)Page background
surface-raised#4B5196rgb(75,81,150)Cards, modals, raised surfaces
surface-overlay#351027rgb(53,16,39)Overlays, tooltips, dropdowns
text-primary#B8B1D7rgb(184,177,215)Headings, body text
text-secondary#BDC6DFrgb(189,198,223)Secondary, muted text
text-tertiary#B398A9rgb(179,152,169)Additional text
border-default#4D5498rgb(77,84,152)Subtle borders, dividers
accent#BCBAFCrgb(188,186,252)Primary actions, links, focus

Typography

  • •MUST use Inter as primary font family
  • •SHOULD use single font family for consistency
  • •MUST use 56px / extra_bold for primary headings
  • •MUST use 25px / 400 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-1Inter56pxextra_bold#DDE3EC1
bodyInter25px400#CEDCEE1
text-17pxInter17px400#7F5D771
text-16pxInter16px400#B1AFB91
text-15pxInter15px400#ABB1D61
text-15pxInter15px400#B49EBA1
text-14pxInter14px400#B1B5D91
text-14pxInter14px400#AFB5DB1
text-14pxInter14px400#A592B51
text-14pxInter14px400#B9ACD41

Typography Reference

Font Families:

  • •Inter (used 44x)

Font Sizes: 10px, 11px, 12px, 13px, 14px, 15px, 16px, 17px, 25px, 56px

Spacing

  • •MUST use 4px grid for spacing
  • •SHOULD use spacing from scale: 1px, 2px, 3px, 4px, 5px, 6px, 7px, 8px
  • •SHOULD use 3px 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: 3px, 4px, 7px, 8px, 10px, 15px, 21px, 22px, 23px
  • •SHOULD use 21px+ radius for pill-shaped elements
  • •SHOULD limit border widths to: 1px, 2px, 3px, 5px
  • •SHOULD use 10px 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: 3px, 4px, 7px, 8px, 10px, 15px, 21px, 22px, 23px

Layout

  • •MUST design for 1920px base viewport width
  • •SHOULD use consistent element widths: 11px, 10px, 14px, 44px, 220px
  • •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

  • •Main Content: width: 1920px, height: 1006px
  • •Main Content: width: 1920px, height: 1047px

Components

Buttons

VariantBackgroundTextBorderHeightRadius
Ghosttransparent#B8B1D7none--

Interactive States

Focus

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

Hover

  • •Buttons (primary): lighten background by 10%
  • •Buttons (secondary): use #4B5196 background
  • •List items: use #4B5196 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