Gusto UI Skills

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

When to Apply

Reference these guidelines when:

• Building light-mode interfaces

• Creating Gusto-inspired design systems

• Implementing UIs with Inter font and 4px grid

Colors

• SHOULD use light backgrounds for primary surfaces

• MUST use #116D6C as page background (surface-base )

• MUST use #116D6C for primary actions and focus states (accent )

• SHOULD reduce color palette (currently 23 colors detected)

• MUST maintain text contrast ratio of at least 4.5:1 for accessibility

Semantic Tokens

Token HEX RGB Usage

surface-base

#116D6C rgb(17,109,108) Page background

surface-raised

#FFFFFF rgb(255,255,255) Cards, modals, raised surfaces

surface-overlay

#063E82 rgb(6,62,130) Overlays, tooltips, dropdowns

text-primary

#606060 rgb(96,96,96) Headings, body text

text-secondary

#717171 rgb(113,113,113) Secondary, muted text

text-tertiary

#898989 rgb(137,137,137) Additional text

border-default

#E3ECED rgb(227,236,237) Subtle borders, dividers

accent

#116D6C rgb(17,109,108) Primary actions, links, focus

destructive

#DA6966 rgb(218,105,102) Error states, delete actions

Typography

• MUST use Inter as primary font family

• SHOULD use single font family for consistency

• MUST use 51px / extra_bold for primary headings

• MUST use 15px / 400 for body text

• SHOULD reduce font weights (currently 6 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

Style Font Size Weight Color Count

heading-1

Inter 51px extra_bold #353636 1

text-35px

Inter 35px 700 #E0554C 1

text-32px

Inter 32px extra_bold #D62833 1

text-30px

Inter 30px semi_bold #343434 1

text-28px

Inter 28px extra_bold #FADAD3 1

text-25px

Inter 25px extra_bold #2E2E2E 1

text-23px

Inter 23px semi_bold #DA6966 1

text-22px

Inter 22px 500 #323232 1

text-18px

Inter 18px 500 #575757 1

text-18px

Inter 18px 400 #5B677E 1

Typography Reference

Font Families:

• Inter (used 80x)

Font Sizes: 6px, 7px, 8px, 9px, 10px, 11px, 12px, 13px, 14px, 15px, 17px, 18px, 22px, 23px, 25px, 28px, 30px, 32px, 35px, 51px

Spacing

• MUST use 4px grid for spacing

• SHOULD use spacing from scale: 1px, 2px, 3px, 4px, 5px, 6px, 7px, 9px

• 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: 4px, 6px, 7px, 9px, 10px, 15px, 16px, 22px, 23px

• SHOULD use 22px+ radius for pill-shaped elements

• SHOULD limit border widths to: 1px, 2px

• SHOULD use 7px 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: 4px, 6px, 7px, 9px, 10px, 15px, 16px, 22px, 23px

Layout

• MUST design for 1920px base viewport width

• SHOULD use consistent element widths: 15px, 24px, 23px, 48px, 11px

• 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: 864px

• Main Content: width: 1920px, height: 789px

• Header: height: 76px

• Header: height: 51px

Components

Buttons

Variant Background Text Border Height Radius

Ghost transparent #807F7D none

Interactive States

Focus

• MUST use 2px outline with accent color (#116D6C )

• MUST use 2px outline-offset

• NEVER remove focus indicators

Hover

• Buttons (primary): lighten background by 10%

• Buttons (secondary): use #FFFFFF background

• List items: use #FFFFFF 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