ghost-ui-skills
Ghost's UI design system. Use when building interfaces inspired by Ghost's aesthetic - dark mode, Inter font, 4px grid.
What this skill does
# Ghost UI Skills Opinionated constraints for building Ghost-style interfaces with AI agents. ## When to Apply Reference these guidelines when: - Building dark-mode interfaces - Creating Ghost-inspired design systems - Implementing UIs with Inter font and 4px grid ## Colors - MUST use dark backgrounds (lightness < 20) for primary surfaces - detected lightness: 8 - MUST use `#FFFFFF` as page background (`surface-base`) - SHOULD reduce color palette (currently 18 colors detected) - MUST maintain text contrast ratio of at least 4.5:1 for accessibility ### Semantic Tokens | Token | HEX | RGB | Usage | |-------|-----|-----|-------| | `surface-base` | #FFFFFF | rgb(255,255,255) | Page background | | `surface-raised` | #DAE1EC | rgb(218,225,236) | Cards, modals, raised surfaces | | `surface-overlay` | #0D0E10 | rgb(13,14,16) | Overlays, tooltips, dropdowns | | `text-primary` | #D8D9DC | rgb(216,217,220) | Headings, body text | | `text-secondary` | #333437 | rgb(51,52,55) | Secondary, muted text | | `text-tertiary` | #4C4E53 | rgb(76,78,83) | Additional text | | `border-default` | #DBE0E8 | rgb(219,224,232) | Subtle borders, dividers | | `warning` | #FAB429 | rgb(250,180,41) | Warning states, cautions | ## Typography - MUST use `Inter` as primary font family - SHOULD use single font family for consistency - MUST use `73px` / `700` for primary headings - MUST use `26px` / `500` for body text - SHOULD reduce font weights (currently 5 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 | 73px | 700 | #1E2826 | 1 | | `body` | Inter | 26px | 500 | #2F2F2F | 1 | | `body-secondary` | Inter | 24px | semi_bold | #D8D9DC | 2 | | `body-secondary` | Inter | 23px | semi_bold | #E5E6E9 | 1 | | `text-18px` | Inter | 18px | semi_bold | #C2C3C4 | 1 | | `text-14px` | Inter | 14px | 400 | #7B7B7B | 1 | | `text-14px` | Inter | 14px | 400 | #7C7C7C | 1 | | `text-14px` | Inter | 14px | 400 | #787878 | 1 | | `text-13px` | Inter | 13px | 400 | #313234 | 1 | | `text-13px` | Inter | 13px | 400 | #333438 | 1 | ### Typography Reference **Font Families:** - `Inter` (used 42x) **Font Sizes:** 9px, 10px, 11px, 12px, 13px, 14px, 18px, 23px, 24px, 26px, 73px ## Spacing - MUST use 4px grid for spacing - SHOULD use spacing from scale: 1px, 2px, 3px, 4px, 5px, 6px, 7px, 8px - SHOULD use 65px 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, 13px, 16px - SHOULD limit border widths to: 1px, 6px - SHOULD use 13px 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, 13px, 16px ## Layout - MUST design for 1920px base viewport width - SHOULD use consistent element widths: 260px, 10px, 8px, 13px, 35px - 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: 1635px, height: 1080px ## Components ### Buttons | Variant | Background | Text | Border | Height | Radius | |---------|------------|------|--------|--------|--------| | Ghost | transparent | #757678 | none | - | - | ## Interactive States ### Focus - MUST use `2px` outline with accent color (`#5E6AD2`) - MUST use `2px` outline-offset - NEVER remove focus indicators ### Hover - Buttons (primary): lighten background by 10% - Buttons (secondary): use `#DAE1EC` background - List items: use `#DAE1EC` 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
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