A portable design language for agents: download the markdown first, then inspect the preview, tokens, and rules as needed.
Portable DESIGN.md source of truth for most agents and apps.
Stack content by depth as horizontal strata, oriented by a persistent left meter ruler and a continuous core-sample column. Let the surface breathe and the bedrock go quiet; risk surfaces at the bottom of the core. Never a left service-spine binder or columns-in-a-binder.
Hierarchy is depth and the core column, not colour variety. Display titles are mixed-case Space Grotesk; readouts and part-IDs are mono; body annotations stay small. Oxygen-cyan leads; amber marks a hold; rust marks a real alarm.
Dense inside metric matrices and the descent ledger, but every dense stratum has a quieter, deeper band or a core-column pause nearby so the page reads controlled.
A depth-strata register; a continuous core-sample column with role-coloured intervals; a persistent meter depth ruler; dot-matrix punch-grid readouts; and one operator at human scale against the strata.
Three-track grid: depth-ruler | core-column | content stack. Content caps at ~1320-1480px and centres; only the landing hero spans 100vw.
4-8px for dot-matrix and ticks, 16-32px inside plates, 48-96px for strata gaps and the surface breath; pad above every title.
Light and spacious at the surface stratum, denser in the core metrics and ledger, quiet again at bedrock.
Renders from ~390px mobile to 2560px+ ultra-wide; tablet drops the depth ruler, mobile collapses to a single scrollable descent with a thin core spine; grids shrink rather than overflow (minmax(0,1fr) + min-width:0).
anodize
Flat high-contrast monochrome inked engineering plates of core samples, strata cutaways, umbilical lines, and hatch seals, with one operator at human scale against the depth of the strata; halftone hatching, a single amber risk-tape, a barcode part-ID rail.
Full-bleed landing hero as a vertical core-sample column bleeding off all edges; feature plates as tighter inked figures with leader-line callouts; empty-states as a sparse strata outline on a large vacuum-black-to-soil field.
# Mascon ## Philosophy A language for a buried lunar shelter, read the way you drill it: top down, by depth. There is no left-edge service spine and no command panel bolted to a wall — the whole interface is a core sample. You descend through strata: surface regolith, the airlock, the pressurized core where one operator breathes, then bedrock and the mass concentration (the mascon) below. A meter ruler keeps you oriented; a continuous core column carries every life-support state down the page. ### Values - Depth is the hierarchy: light and spacious at the surface, dense and quiet toward bedrock - Human scale: one operator drawn against two hundred metres of strata - Procedure over spectacle - Material honesty: regolith, aluminum, ink, the umbilical line - Colour spent only on consequence: oxygen, hold, alarm - Orientation by depth: every reading has a metre location ### Anti-Values - Black or white default grounds - A left service-spine binder, full-width amber tape bars, or condensed all-caps display (that is the sibling, Regolith) - Seven-segment command capsules and generic SaaS card grids - Glow, bloom, neon, glass, or gradient washes - Accent colour spent on decoration rather than a real life-support state ### Visual Character - A continuous vertical core-sample column runs down the left edge through the whole page, divided into intervals coloured by role — cyan oxygen, amber hold, rust risk, hatched soil and rock — recolouring on palette swap because every interval maps to a semantic role. - A persistent meter depth ruler with tick marks sits left of the core, giving every reading a location in the strata; sections are horizontal strata stacked by depth, not columns in a binder. - Telemetry reads as dot-matrix punch grids whose lit dots take the metric's role colour, on a warm iron-oxide regolith ground tuned warm in its neutrals. - Display is Space Grotesk, geometric and wide and mixed-case; body is Spline Sans; readouts and part-IDs are Spline Sans Mono — never condensed all-caps. ## Tokens ### Colors | Name | Value | |------|-------| | bg | `#1B1714` | | surface | `#241F1A` | | surface_2 | `#2E2823` | | recess | `#14110E` | | text | `#F0E9DD` | | bone | `#D9CFBE` | | muted | `#A0968A` | | border | `rgba(240,233,221,0.10)` | | accent | `#5FD3C8` | | on_accent | `#14110E` | | success | `#5FD3C8` | | warning | `#D69A3A` | | error | `#C9622F` | | info | `#A0968A` | ### Typography - **Base Size**: 17px - **Body Font**: Spline Sans - **Heading Font**: Space Grotesk - **Mono Font**: Spline Sans Mono - **Heading Weight**: 600 - **Heading Transform**: none - **Letter Spacing**: -0.01em - **Google Fonts Url**: https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=Spline+Sans:wght@400;500;600;700&family=Spline+Sans+Mono:wght@400;500;600&display=swap ### Radii - **None**: 0 - **Sm**: 16px - **Md**: 16px - **Lg**: 16px - **Full**: 9999px ### Shadows - **Sm**: inset 0 0 0 1px rgba(240,233,221,0.05) - **Md**: 0 24px 60px rgba(0,0,0,0.42) - **Lg**: 0 48px 120px rgba(0,0,0,0.55) ### Spacing - **Base**: 8px - **Scale**: [4,8,12,16,24,32,48,64,96] ### Surfaces - **Bg Pattern**: warm iron-oxide regolith ground with a descent gradient (lighter soil at the surface, deepest core at the bottom); a continuous core-sample column and a meter depth ruler down the left - **Card Style**: flat warm-dark plates with 16px band corners, inset bone hairline, generous padding; no glass, no gradient washes, no accent edges - **Treatment**: regolith soil and aluminum on warm dark; dot-matrix punch readouts; no glow, no neon ### Borders - **Default Width**: 1px - **Accent Width**: 0 - **Style**: solid - **Character**: near-invisible bone hairlines for structure only; colour is carried by the core-sample intervals and status pills, never by an accent edge on a card ### Motion - **Duration**: 500ms - **Easing**: cubic-bezier(.2,.7,.2,1) - **Philosophy**: the settled, fully-rendered page is the default and shows with no JavaScript; motion is layered on top behind an .mtn class on <html> — bands rise and core intervals fill downward like drilling as you descend; respects prefers-reduced-motion ## Rules ### Composition Stack content by depth as horizontal strata, oriented by a persistent left meter ruler and a continuous core-sample column. Let the surface breathe and the bedrock go quiet; risk surfaces at the bottom of the core. Never a left service-spine binder or columns-in-a-binder. ### Hierarchy Hierarchy is depth and the core column, not colour variety. Display titles are mixed-case Space Grotesk; readouts and part-IDs are mono; body annotations stay small. Oxygen-cyan leads; amber marks a hold; rust marks a real alarm. ### Density Dense inside metric matrices and the descent ledger, but every dense stratum has a quieter, deeper band or a core-column pause nearby so the page reads controlled. ### Signature A depth-strata register; a continuous core-sample column with role-coloured intervals; a persistent meter depth ruler; dot-matrix punch-grid readouts; and one operator at human scale against the strata. ## Layout ### Grid Three-track grid: depth-ruler | core-column | content stack. Content caps at ~1320-1480px and centres; only the landing hero spans 100vw. ### Whitespace 4-8px for dot-matrix and ticks, 16-32px inside plates, 48-96px for strata gaps and the surface breath; pad above every title. ### Density Light and spacious at the surface stratum, denser in the core metrics and ledger, quiet again at bedrock. ### Responsive Renders from ~390px mobile to 2560px+ ultra-wide; tablet drops the depth ruler, mobile collapses to a single scrollable descent with a thin core spine; grids shrink rather than overflow (minmax(0,1fr) + min-width:0). ### Breakpoints - **Mobile**: 390px - **Tablet**: 768px - **Desktop**: 1200px - **Reflow**: 1100px and 900px and 560px ## Guidance ### Do - Stack content by depth; let the meter ruler and core column orient every reading. - Lead with oxygen-cyan; reserve amber for hold and rust for alarm. - Keep one operator at human scale somewhere on the page. - Let the surface stratum breathe and the bedrock go quiet. - Read telemetry as dot-matrix punch grids in the metric's role colour. - Use mixed-case Space Grotesk display and mono readouts; pad above titles. ### Don't - Do not default to a black or white ground. - Do not use a left service-spine binder, full-width amber tape bars, condensed all-caps display, or seven-segment command capsules (that is the sibling, Regolith). - Do not spend an accent on decoration, give a card an accent edge, or box the masthead into a pill. - Do not use glow, bloom, neon, glass, or gradient washes. - Do not round to arbitrary radii or nest cards. ### Accessibility High contrast bone/cyan on warm-dark; status carried by colour AND label/shape; mono readouts stay 15px+; visible 2px cyan focus rings with offset; all form controls explicitly styled with no browser defaults. ## Imagery Direction ### Pairs With anodize ### Summary Flat high-contrast monochrome inked engineering plates of core samples, strata cutaways, umbilical lines, and hatch seals, with one operator at human scale against the depth of the strata; halftone hatching, a single amber risk-tape, a barcode part-ID rail. ### Subjects - lunar core-sample / strata cutaway - buried habitat module in section - oxygen umbilical lines - hatch seal diagram - one EVA operator at human scale - mascon mass-concentration core ### Usage Full-bleed landing hero as a vertical core-sample column bleeding off all edges; feature plates as tighter inked figures with leader-line callouts; empty-states as a sparse strata outline on a large vacuum-black-to-soil field.
---
version: "alpha"
name: "Mascon"
description: "Agent-curated design language exported from Katagami as DESIGN.md."
colors:
bg: "#1B1714"
surface: "#241F1A"
surface_2: "#2E2823"
recess: "#14110E"
text: "#F0E9DD"
bone: "#D9CFBE"
muted: "#A0968A"
accent: "#5FD3C8"
on_accent: "#14110E"
success: "#5FD3C8"
warning: "#D69A3A"
error: "#C9622F"
info: "#A0968A"
typography:
headline-lg:
fontFamily: "Space Grotesk"
fontSize: "2.075rem"
fontWeight: 700
lineHeight: 1.1
letterSpacing: "-0.01em"
headline-md:
fontFamily: "Space Grotesk"
fontSize: "1.66rem"
fontWeight: 600
lineHeight: 1.15
letterSpacing: "-0.01em"
body-md:
fontFamily: "Spline Sans"
fontSize: "17px"
fontWeight: 400
lineHeight: 1.5
letterSpacing: "-0.01em"
label-md:
fontFamily: "Spline Sans Mono"
fontSize: "0.75rem"
fontWeight: 600
lineHeight: 1
letterSpacing: "0.08em"
rounded:
none: "0px"
sm: "16px"
md: "16px"
lg: "16px"
full: "9999px"
spacing:
base: "8px"
xs: "4px"
sm: "8px"
md: "12px"
lg: "16px"
xl: "24px"
2xl: "32px"
3xl: "48px"
4xl: "64px"
step-8: "96px"
components:
color-reference-bg:
backgroundColor: "{colors.bg}"
color-reference-surface:
backgroundColor: "{colors.surface}"
color-reference-surface_2:
backgroundColor: "{colors.surface_2}"
color-reference-recess:
backgroundColor: "{colors.recess}"
color-reference-text:
backgroundColor: "{colors.text}"
color-reference-bone:
backgroundColor: "{colors.bone}"
color-reference-muted:
backgroundColor: "{colors.muted}"
color-reference-accent:
backgroundColor: "{colors.accent}"
color-reference-on_accent:
backgroundColor: "{colors.on_accent}"
color-reference-success:
backgroundColor: "{colors.success}"
color-reference-warning:
backgroundColor: "{colors.warning}"
color-reference-error:
backgroundColor: "{colors.error}"
color-reference-info:
backgroundColor: "{colors.info}"
button-primary:
backgroundColor: "{colors.accent}"
textColor: "#000000"
typography: "{typography.label-md}"
rounded: "{rounded.md}"
padding: "{spacing.md}"
card-surface:
backgroundColor: "{colors.surface}"
textColor: "{colors.text}"
rounded: "{rounded.md}"
padding: "{spacing.md}"
input-default:
backgroundColor: "{colors.surface}"
textColor: "{colors.text}"
rounded: "{rounded.md}"
height: "44px"
---
# Mascon
## Overview
A language for a buried lunar shelter, read the way you drill it: top down, by depth. There is no left-edge service spine and no command panel bolted to a wall — the whole interface is a core sample. You descend through strata: surface regolith, the airlock, the pressurized core where one operator breathes, then bedrock and the mass concentration (the mascon) below. A meter ruler keeps you oriented; a continuous core column carries every life-support state down the page.
### Values
- Depth is the hierarchy: light and spacious at the surface, dense and quiet toward bedrock
- Human scale: one operator drawn against two hundred metres of strata
- Procedure over spectacle
- Material honesty: regolith, aluminum, ink, the umbilical line
- Colour spent only on consequence: oxygen, hold, alarm
- Orientation by depth: every reading has a metre location
### Anti-Values
- Black or white default grounds
- A left service-spine binder, full-width amber tape bars, or condensed all-caps display (that is the sibling, Regolith)
- Seven-segment command capsules and generic SaaS card grids
- Glow, bloom, neon, glass, or gradient washes
- Accent colour spent on decoration rather than a real life-support state
### Visual Character
- A continuous vertical core-sample column runs down the left edge through the whole page, divided into intervals coloured by role — cyan oxygen, amber hold, rust risk, hatched soil and rock — recolouring on palette swap because every interval maps to a semantic role.
- A persistent meter depth ruler with tick marks sits left of the core, giving every reading a location in the strata; sections are horizontal strata stacked by depth, not columns in a binder.
- Telemetry reads as dot-matrix punch grids whose lit dots take the metric's role colour, on a warm iron-oxide regolith ground tuned warm in its neutrals.
- Display is Space Grotesk, geometric and wide and mixed-case; body is Spline Sans; readouts and part-IDs are Spline Sans Mono — never condensed all-caps.
## Colors
Use the YAML color tokens as the normative palette. The prose below names the roles agents should preserve when generating UI.
| Token | Value |
|-------|-------|
| bg | `#1B1714` |
| surface | `#241F1A` |
| surface_2 | `#2E2823` |
| recess | `#14110E` |
| text | `#F0E9DD` |
| bone | `#D9CFBE` |
| muted | `#A0968A` |
| accent | `#5FD3C8` |
| on_accent | `#14110E` |
| success | `#5FD3C8` |
| warning | `#D69A3A` |
| error | `#C9622F` |
| info | `#A0968A` |
## Typography
- **Headline-Lg**: Space Grotesk, 2.075rem, weight 700, line-height 1.1.
- **Headline-Md**: Space Grotesk, 1.66rem, weight 600, line-height 1.15.
- **Body-Md**: Spline Sans, 17px, weight 400, line-height 1.5.
- **Label-Md**: Spline Sans Mono, 0.75rem, weight 600, line-height 1.
## Layout
### Spacing Tokens
- **Base**: `8px`
- **Xs**: `4px`
- **Sm**: `8px`
- **Md**: `12px`
- **Lg**: `16px`
- **Xl**: `24px`
- **2xl**: `32px`
- **3xl**: `48px`
- **4xl**: `64px`
- **Step-8**: `96px`
### Grid
Three-track grid: depth-ruler | core-column | content stack. Content caps at ~1320-1480px and centres; only the landing hero spans 100vw.
### Whitespace
4-8px for dot-matrix and ticks, 16-32px inside plates, 48-96px for strata gaps and the surface breath; pad above every title.
### Density
Light and spacious at the surface stratum, denser in the core metrics and ledger, quiet again at bedrock.
### Responsive
Renders from ~390px mobile to 2560px+ ultra-wide; tablet drops the depth ruler, mobile collapses to a single scrollable descent with a thin core spine; grids shrink rather than overflow (minmax(0,1fr) + min-width:0).
### Breakpoints
- **Mobile**: 390px
- **Tablet**: 768px
- **Desktop**: 1200px
- **Reflow**: 1100px and 900px and 560px
## Elevation & Depth
### Shadows
- **Sm**: inset 0 0 0 1px rgba(240,233,221,0.05)
- **Md**: 0 24px 60px rgba(0,0,0,0.42)
- **Lg**: 0 48px 120px rgba(0,0,0,0.55)
## Shapes
### Rounded
- **None**: `0px`
- **Sm**: `16px`
- **Md**: `16px`
- **Lg**: `16px`
- **Full**: `9999px`
### Surfaces
- **Bg Pattern**: warm iron-oxide regolith ground with a descent gradient (lighter soil at the surface, deepest core at the bottom); a continuous core-sample column and a meter depth ruler down the left
- **Card Style**: flat warm-dark plates with 16px band corners, inset bone hairline, generous padding; no glass, no gradient washes, no accent edges
- **Treatment**: regolith soil and aluminum on warm dark; dot-matrix punch readouts; no glow, no neon
### Borders
- **Default Width**: 1px
- **Accent Width**: 0
- **Style**: solid
- **Character**: near-invisible bone hairlines for structure only; colour is carried by the core-sample intervals and status pills, never by an accent edge on a card
## Components
### Composition
Stack content by depth as horizontal strata, oriented by a persistent left meter ruler and a continuous core-sample column. Let the surface breathe and the bedrock go quiet; risk surfaces at the bottom of the core. Never a left service-spine binder or columns-in-a-binder.
### Hierarchy
Hierarchy is depth and the core column, not colour variety. Display titles are mixed-case Space Grotesk; readouts and part-IDs are mono; body annotations stay small. Oxygen-cyan leads; amber marks a hold; rust marks a real alarm.
### Density
Dense inside metric matrices and the descent ledger, but every dense stratum has a quieter, deeper band or a core-column pause nearby so the page reads controlled.
### Signature
A depth-strata register; a continuous core-sample column with role-coloured intervals; a persistent meter depth ruler; dot-matrix punch-grid readouts; and one operator at human scale against the strata.
## shadcn/ui Usage
When the target app uses shadcn/ui, copy DESIGN.md with shadcn instead of the plain DESIGN.md. It contains the same Katagami design-language source plus the shadcn/ui primitives, imports, theme variables, component recipes, and preview-shot guidance.
DESIGN.md with shadcn: `/language/en-019ef9bd-4e80-7452-bb29-5cf8257633e2/DESIGN.with-shadcn.md`.
The shadcn page also exposes optional machine-readable files for automation, but the human-facing handoff is DESIGN.md with shadcn.
Install recommended primitives with `npx shadcn@latest add button card input textarea select dialog sheet tabs badge separator checkbox switch slider tooltip dropdown-menu table`.
Use these primitives in shadcn apps:
- button
- card
- input
- textarea
- select
- dialog
- sheet
- tabs
- badge
- separator
- checkbox
- switch
- slider
- tooltip
- dropdown-menu
- table
Implementation rule for agents: import shadcn primitives from `@/components/ui/*`, apply the generated CSS variables first, then compose the language-specific recipes from the companion MD. Katagami remains the source of truth; shadcn names are the implementation surface.
## Do's and Don'ts
- Do Stack content by depth; let the meter ruler and core column orient every reading.
- Do Lead with oxygen-cyan; reserve amber for hold and rust for alarm.
- Do Keep one operator at human scale somewhere on the page.
- Do Let the surface stratum breathe and the bedrock go quiet.
- Do Read telemetry as dot-matrix punch grids in the metric's role colour.
- Do Use mixed-case Space Grotesk display and mono readouts; pad above titles.
- Don't Do not default to a black or white ground.
- Don't Do not use a left service-spine binder, full-width amber tape bars, condensed all-caps display, or seven-segment command capsules (that is the sibling, Regolith).
- Don't Do not spend an accent on decoration, give a card an accent edge, or box the masthead into a pill.
- Don't Do not use glow, bloom, neon, glass, or gradient washes.
- Don't Do not round to arbitrary radii or nest cards.
### Accessibility
High contrast bone/cyan on warm-dark; status carried by colour AND label/shape; mono readouts stay 15px+; visible 2px cyan focus rings with offset; all form controls explicitly styled with no browser defaults.
## Imagery Direction
### Pairs With
anodize
### Summary
Flat high-contrast monochrome inked engineering plates of core samples, strata cutaways, umbilical lines, and hatch seals, with one operator at human scale against the depth of the strata; halftone hatching, a single amber risk-tape, a barcode part-ID rail.
### Subjects
- lunar core-sample / strata cutaway
- buried habitat module in section
- oxygen umbilical lines
- hatch seal diagram
- one EVA operator at human scale
- mascon mass-concentration core
### Usage
Full-bleed landing hero as a vertical core-sample column bleeding off all edges; feature plates as tighter inked figures with leader-line callouts; empty-states as a sparse strata outline on a large vacuum-black-to-soil field.
```json
{
"$schema": "https://ui.shadcn.com/schema/registry-item.json",
"name": "mascon",
"type": "registry:theme",
"title": "Mascon shadcn Theme",
"cssVars": {
"theme": {},
"light": {
"background": "#1B1714",
"foreground": "#F0E9DD",
"card": "#241F1A",
"card-foreground": "#F0E9DD",
"popover": "#241F1A",
"popover-foreground": "#F0E9DD",
"primary": "#F0E9DD",
"primary-foreground": "#111111",
"secondary": "#f4f4f5",
"secondary-foreground": "#111111",
"muted": "#A0968A",
"muted-foreground": "#F0E9DD",
"accent": "#5FD3C8",
"accent-foreground": "#ffffff",
"destructive": "#C9622F",
"border": "rgba(240,233,221,0.10)",
"input": "rgba(240,233,221,0.10)",
"ring": "#5FD3C8",
"chart-1": "#F0E9DD",
"chart-2": "#f4f4f5",
"chart-3": "#5FD3C8",
"chart-4": "#5FD3C8",
"chart-5": "#D69A3A",
"sidebar": "#241F1A",
"sidebar-foreground": "#F0E9DD",
"sidebar-primary": "#F0E9DD",
"sidebar-primary-foreground": "#111111",
"sidebar-accent": "#A0968A",
"sidebar-accent-foreground": "#ffffff",
"sidebar-border": "rgba(240,233,221,0.10)",
"sidebar-ring": "#5FD3C8",
"radius": "16px"
},
"dark": {
"background": "#0f1115",
"foreground": "#f8fafc",
"card": "#181b22",
"card-foreground": "#f8fafc",
"popover": "#181b22",
"popover-foreground": "#f8fafc",
"primary": "#F0E9DD",
"primary-foreground": "#111111",
"secondary": "#252a33",
"secondary-foreground": "#f8fafc",
"muted": "#252a33",
"muted-foreground": "#a1a1aa",
"accent": "#5FD3C8",
"accent-foreground": "#ffffff",
"destructive": "#C9622F",
"border": "#303642",
"input": "#303642",
"ring": "#5FD3C8",
"chart-1": "#F0E9DD",
"chart-2": "#f4f4f5",
"chart-3": "#5FD3C8",
"chart-4": "#5FD3C8",
"chart-5": "#D69A3A",
"sidebar": "#181b22",
"sidebar-foreground": "#f8fafc",
"sidebar-primary": "#F0E9DD",
"sidebar-primary-foreground": "#111111",
"sidebar-accent": "#5FD3C8",
"sidebar-accent-foreground": "#ffffff",
"sidebar-border": "#303642",
"sidebar-ring": "#5FD3C8",
"radius": "16px"
}
},
"meta": {
"source": "katagami",
"languageId": "en-019ef9bd-4e80-7452-bb29-5cf8257633e2",
"slug": "mascon",
"componentManifest": [
"button",
"card",
"input",
"textarea",
"select",
"dialog",
"sheet",
"tabs",
"badge",
"separator",
"checkbox",
"switch",
"slider",
"tooltip",
"dropdown-menu",
"table"
],
"installCommand": "npx shadcn@latest add button card input textarea select dialog sheet tabs badge separator checkbox switch slider tooltip dropdown-menu table",
"nativeTokenNames": {
"colors": [
"accent",
"bg",
"bone",
"border",
"error",
"info",
"muted",
"on_accent",
"recess",
"success",
"surface",
"surface_2",
"text",
"warning"
],
"typography": [
"base_size",
"body_font",
"google_fonts_url",
"heading_font",
"heading_transform",
"heading_weight",
"letter_spacing",
"mono_font"
],
"radii": [
"full",
"lg",
"md",
"none",
"sm"
],
"shadows": [
"lg",
"md",
"sm"
],
"spacing": [
"base",
"scale"
],
"surfaces": [
"bg_pattern",
"card_style",
"treatment"
],
"borders": [
"accent_width",
"character",
"default_width",
"style"
],
"motion": [
"duration",
"easing",
"philosophy"
]
}
}
}
```The quick brown fox jumps
The quick brown fox jumps
The quick brown fox jumps
The quick brown fox jumps
Agent-generated
Keep Masconand swap a palette and an art style onto it — the landing & dashboard recolor live. The Studio does the same with all three lanes free.
Copy this when the target app uses shadcn/ui. It packages the Katagami DESIGN.md context with the install list, theme variables, component recipes, preview-shot contract, and starter TSX in one Markdown companion.
npx shadcn@latest add button card input textarea select dialog sheet tabs badge separator checkbox switch slider tooltip dropdown-menu table:root {
--background: #1B1714;
--foreground: #F0E9DD;
--card: #241F1A;
--card-foreground: #F0E9DD;
--popover: #241F1A;
--popover-foreground: #F0E9DD;
--primary: #F0E9DD;
--primary-foreground: #111111;
--secondary: #f4f4f5;
--secondary-foreground: #111111;
--muted: #A0968A;
--muted-foreground: #F0E9DD;
--accent: #5FD3C8;
--accent-foreground: #ffffff;
--destructive: #C9622F;
--border: rgba(240,233,221,0.10);
--input: rgba(240,233,221,0.10);
--ring: #5FD3C8;
--chart-1: #F0E9DD;
--chart-2: #f4f4f5;
--chart-3: #5FD3C8;
--chart-4: #5FD3C8;
--chart-5: #D69A3A;
--sidebar: #241F1A;
--sidebar-foreground: #F0E9DD;
--sidebar-primary: #F0E9DD;
--sidebar-primary-foreground: #111111;
--sidebar-accent: #A0968A;
--sidebar-accent-foreground: #ffffff;
--sidebar-border: rgba(240,233,221,0.10);
--sidebar-ring: #5FD3C8;
--radius: 16px;
}
.dark {
--background: #0f1115;
--foreground: #f8fafc;
--card: #181b22;
--card-foreground: #f8fafc;
--popover: #181b22;
--popover-foreground: #f8fafc;
--primary: #F0E9DD;
--primary-foreground: #111111;
--secondary: #252a33;
--secondary-foreground: #f8fafc;
--muted: #252a33;
--muted-foreground: #a1a1aa;
--accent: #5FD3C8;
--accent-foreground: #ffffff;
--destructive: #C9622F;
--border: #303642;
--input: #303642;
--ring: #5FD3C8;
--chart-1: #F0E9DD;
--chart-2: #f4f4f5;
--chart-3: #5FD3C8;
--chart-4: #5FD3C8;
--chart-5: #D69A3A;
--sidebar: #181b22;
--sidebar-foreground: #f8fafc;
--sidebar-primary: #F0E9DD;
--sidebar-primary-foreground: #111111;
--sidebar-accent: #5FD3C8;
--sidebar-accent-foreground: #ffffff;
--sidebar-border: #303642;
--sidebar-ring: #5FD3C8;
--radius: 16px;
}
import { Badge } from "@/components/ui/badge";
import { Button } from "@/components/ui/button";
import {
Card,
CardContent,
CardDescription,
CardFooter,
CardHeader,
CardTitle,
} from "@/components/ui/card";
import { Input } from "@/components/ui/input";
import { Tabs, TabsList, TabsTrigger } from "@/components/ui/tabs";
export function MasconShadcnKit() {
return (
<section className="grid gap-4 rounded-[var(--radius)] border bg-background p-4 text-foreground">
<div className="flex items-start justify-between gap-4">
<div>
<Badge variant="outline">shadcn/ui</Badge>
<h2 className="mt-3 text-2xl font-semibold tracking-tight">Mascon</h2>
<p className="mt-1 max-w-xl text-sm text-muted-foreground">
Use the Katagami registry theme, then compose these shadcn primitives
with the language-specific component recipes.
</p>
</div>
<Button>Apply theme</Button>
</div>
<Tabs defaultValue="components">
<TabsList>
<TabsTrigger value="components">Components</TabsTrigger>
<TabsTrigger value="states">States</TabsTrigger>
<TabsTrigger value="export">Export</TabsTrigger>
</TabsList>
</Tabs>
<Card>
<CardHeader>
<CardTitle>Component recipe</CardTitle>
<CardDescription>
Replace this starter content with the agent-authored product scene
from components.md and preview-shots.json.
</CardDescription>
</CardHeader>
<CardContent className="grid gap-3 sm:grid-cols-[1fr_auto]">
<Input defaultValue="Tokenized shadcn surface" aria-label="Recipe name" />
<Button variant="secondary">Preview state</Button>
</CardContent>
<CardFooter className="justify-between">
<Badge>Ready</Badge>
<Button variant="outline">Copy recipe</Button>
</CardFooter>
</Card>
</section>
);
}
{
"$schema": "https://ui.shadcn.com/schema/registry-item.json",
"name": "mascon",
"type": "registry:theme",
"author": "katagami-agent",
"visualProfile": {
"ground": "warm-dark",
"material": "flat oxidized regolith plates on warm iron-oxide soil; no glass, no gradient washes",
"radius": "16px bands; pill (9999px) for the core column, dots and status chips",
"border": "near-invisible bone hairlines only; no accent edges, no heavy borders",
"accent": "oxygen-cyan led; amber for hold, rust for alarm",
"elevation": "inset hairline + deep soft shadow; never glow",
"typography": "Space Grotesk display (mixed-case 600), Spline Sans body, Spline Sans Mono readouts",
"signature": "depth-strata registers, a continuous core-sample column, a meter depth ruler, dot-matrix readouts"
},
"cssVars": {
"theme": {
"font-sans": "Spline Sans, system-ui, sans-serif",
"font-mono": "Spline Sans Mono, ui-monospace, monospace",
"font-display": "Space Grotesk, system-ui, sans-serif",
"radius": "16px"
},
"light": {
"background": "#1B1714",
"foreground": "#F0E9DD",
"card": "#241F1A",
"card-foreground": "#F0E9DD",
"popover": "#241F1A",
"popover-foreground": "#F0E9DD",
"primary": "#5FD3C8",
"primary-foreground": "#14110E",
"secondary": "#2E2823",
"secondary-foreground": "#F0E9DD",
"muted": "#2E2823",
"muted-foreground": "#A0968A",
"accent": "#5FD3C8",
"accent-foreground": "#14110E",
"destructive": "#C9622F",
"destructive-foreground": "#F0E9DD",
"border": "rgba(240,233,221,0.10)",
"input": "#14110E",
"ring": "#5FD3C8",
"warning": "#D69A3A",
"success": "#5FD3C8",
"radius": "16px"
},
"dark": {
"background": "#1B1714",
"foreground": "#F0E9DD",
"card": "#241F1A",
"card-foreground": "#F0E9DD",
"popover": "#241F1A",
"popover-foreground": "#F0E9DD",
"primary": "#5FD3C8",
"primary-foreground": "#14110E",
"secondary": "#2E2823",
"secondary-foreground": "#F0E9DD",
"muted": "#2E2823",
"muted-foreground": "#A0968A",
"accent": "#5FD3C8",
"accent-foreground": "#14110E",
"destructive": "#C9622F",
"destructive-foreground": "#F0E9DD",
"border": "rgba(240,233,221,0.10)",
"input": "#14110E",
"ring": "#5FD3C8",
"warning": "#D69A3A",
"success": "#5FD3C8",
"radius": "16px"
}
}
}
# Mascon shadcn/ui Components
Artifact: `component-recipes-v1`
Author: `katagami-ui-projection`
Language ID: `en-019ef9bd-4e80-7452-bb29-5cf8257633e2`
Slug: `mascon`
## Intent
A language for a buried lunar shelter, read the way you drill it: top down, by depth. There is no left-edge service spine and no command panel bolted to a wall — the whole interface is a core sample. You descend through strata: surface regolith, the airlock, the pressurized core where one operator breathes, then bedrock and the mass concentration (the mascon) below. A meter ruler keeps you oriented; a continuous core column carries every life-support state down the page.
## Required primitives
- button
- card
- input
- textarea
- select
- dialog
- sheet
- tabs
- badge
- separator
- checkbox
- switch
- slider
- tooltip
- dropdown-menu
- table
Install with `npx shadcn@latest add button card input textarea select dialog sheet tabs badge separator checkbox switch slider tooltip dropdown-menu table`.
## Token cues
Colors:
{
"bg": "#1B1714",
"surface": "#241F1A",
"surface_2": "#2E2823",
"recess": "#14110E",
"text": "#F0E9DD",
"bone": "#D9CFBE",
"muted": "#A0968A",
"border": "rgba(240,233,221,0.10)",
"accent": "#5FD3C8",
"on_accent": "#14110E",
"success": "#5FD3C8",
"warning": "#D69A3A",
"error": "#C9622F",
"info": "#A0968A"
}
Typography:
{
"base_size": "17px",
"body_font": "Spline Sans",
"heading_font": "Space Grotesk",
"mono_font": "Spline Sans Mono",
"heading_weight": "600",
"heading_transform": "none",
"letter_spacing": "-0.01em",
"google_fonts_url": "https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=Spline+Sans:wght@400;500;600;700&family=Spline+Sans+Mono:wght@400;500;600&display=swap"
}
## Visual character to preserve
- A continuous vertical core-sample column runs down the left edge through the whole page, divided into intervals coloured by role — cyan oxygen, amber hold, rust risk, hatched soil and rock — recolouring on palette swap because every interval maps to a semantic role.
- A persistent meter depth ruler with tick marks sits left of the core, giving every reading a location in the strata; sections are horizontal strata stacked by depth, not columns in a binder.
- Telemetry reads as dot-matrix punch grids whose lit dots take the metric's role colour, on a warm iron-oxide regolith ground tuned warm in its neutrals.
- Display is Space Grotesk, geometric and wide and mixed-case; body is Spline Sans; readouts and part-IDs are Spline Sans Mono — never condensed all-caps.
## ShadSync visual profile
{
"family": "system",
"material": "flat",
"contour": "pebble",
"border": "solid",
"underlay": true,
"grain": false,
"stickerBadges": false,
"motion": "still",
"density": "dense",
"accents": [
"primary",
"accent",
"secondary",
"muted"
]
}
## Signature component recipes
### Button
Use `Button` for primary, secondary, outline, and ghost actions. Primary actions must expose the language's strongest contrast pair, while secondary and ghost actions should preserve the surface treatment instead of falling back to default neutral SaaS styling.
### Card
Use `Card`, `CardHeader`, `CardContent`, `CardFooter`, and `CardAction` as the main composition frame. Cards should demonstrate the language's surface, border, hierarchy, and density rules rather than appearing as generic rounded rectangles.
### Input and Textarea
Use `Input` and `Textarea` with visible focus rings, field labels, validation states, and the language's rhythm. Forms should show real product content, not placeholder-only controls.
### Select, Tabs, and Table
Use `Select`, `Tabs`, and `Table` to prove navigation, filtering, and dense data states. The table should show row rhythm, separators, hover/focus states, and an empty or status state when the language calls for it.
### Dialog and Sheet
Use `Dialog` for centered decisions and `Sheet` for contextual editing. Both should inherit the language's spacing, border, overlay, and motion rules.
## Preview shots
- `application-shell`: dashboard or workspace shell with navigation, cards, forms, and state badges.
- `detail-editor`: focused editing flow using input, textarea, select, switch/checkbox, dialog or sheet, and action buttons.
- `data-operations`: table-heavy operational view with tabs, dropdown menu affordances, badges, and destructive/empty states.
- Each preview shot must include a renderable `scene` payload with concrete headline, description, actions, and rows/fields/stats for the UI preview.
## Implementation contract
- Start from local `ui/src/components/ui` shadcn-style primitives; do not create a second component system.
- Apply `/katagami/shadcn/mascon/registry-theme.json` variables, then use these recipes for composition and state design.
- Preserve Katagami token names as source metadata; shadcn semantic names are only the export surface.
- Do: Stack content by depth; let the meter ruler and core column orient every reading.; Lead with oxygen-cyan; reserve amber for hold and rust for alarm.; Keep one operator at human scale somewhere on the page.; Let the surface stratum breathe and the bedrock go quiet.; Read telemetry as dot-matrix punch grids in the metric's role colour.; Use mixed-case Space Grotesk display and mono readouts; pad above titles.
- Do not: Do not default to a black or white ground.; Do not use a left service-spine binder, full-width amber tape bars, condensed all-caps display, or seven-segment command capsules (that is the sibling, Regolith).; Do not spend an accent on decoration, give a card an accent edge, or box the masthead into a pill.; Do not use glow, bloom, neon, glass, or gradient washes.; Do not round to arbitrary radii or nest cards.
## Copy-paste component example
This generated starter proves the import shape. Production Katagami agents should replace it with a language-specific product composition.
```tsx
import { Badge } from "@/components/ui/badge";
import { Button } from "@/components/ui/button";
import {
Card,
CardContent,
CardDescription,
CardFooter,
CardHeader,
CardTitle,
} from "@/components/ui/card";
import { Input } from "@/components/ui/input";
import { Tabs, TabsList, TabsTrigger } from "@/components/ui/tabs";
export function MasconShadcnKit() {
return (
<section className="grid gap-4 rounded-[var(--radius)] border bg-background p-4 text-foreground">
<div className="flex items-start justify-between gap-4">
<div>
<Badge variant="outline">shadcn/ui</Badge>
<h2 className="mt-3 text-2xl font-semibold tracking-tight">Mascon</h2>
<p className="mt-1 max-w-xl text-sm text-muted-foreground">
Use the Katagami registry theme, then compose these shadcn primitives
with the language-specific component recipes.
</p>
</div>
<Button>Apply theme</Button>
</div>
<Tabs defaultValue="components">
<TabsList>
<TabsTrigger value="components">Components</TabsTrigger>
<TabsTrigger value="states">States</TabsTrigger>
<TabsTrigger value="export">Export</TabsTrigger>
</TabsList>
</Tabs>
<Card>
<CardHeader>
<CardTitle>Component recipe</CardTitle>
<CardDescription>
Replace this starter content with the agent-authored product scene
from components.md and preview-shots.json.
</CardDescription>
</CardHeader>
<CardContent className="grid gap-3 sm:grid-cols-[1fr_auto]">
<Input defaultValue="Tokenized shadcn surface" aria-label="Recipe name" />
<Button variant="secondary">Preview state</Button>
</CardContent>
<CardFooter className="justify-between">
<Badge>Ready</Badge>
<Button variant="outline">Copy recipe</Button>
</CardFooter>
</Card>
</section>
);
}
```
## Layout notes
{
"grid": "Three-track grid: depth-ruler | core-column | content stack. Content caps at ~1320-1480px and centres; only the landing hero spans 100vw.",
"whitespace": "4-8px for dot-matrix and ticks, 16-32px inside plates, 48-96px for strata gaps and the surface breath; pad above every title.",
"density": "Light and spacious at the surface stratum, denser in the core metrics and ledger, quiet again at bedrock.",
"responsive": "Renders from ~390px mobile to 2560px+ ultra-wide; tablet drops the depth ruler, mobile collapses to a single scrollable descent with a thin core spine; grids shrink rather than overflow (minmax(0,1fr) + min-width:0).",
"breakpoints": {
"mobile": "390px",
"tablet": "768px",
"desktop": "1200px",
"reflow": "1100px and 900px and 560px"
}
}
{
"artifact": "katagami:shadcn-preview-shots",
"version": "preview-shots-v1",
"generator": "katagami-ui-compatibility-projection",
"generatedBy": "katagami-ui-projection",
"requiresVisualProfile": true,
"schema": "katagami:shadcn-preview-shots/renderable-v1",
"renderable": true,
"language": {
"id": "en-019ef9bd-4e80-7452-bb29-5cf8257633e2",
"name": "Mascon",
"slug": "mascon"
},
"installCommand": "npx shadcn@latest add button card input textarea select dialog sheet tabs badge separator checkbox switch slider tooltip dropdown-menu table",
"primitives": [
"button",
"card",
"input",
"textarea",
"select",
"dialog",
"sheet",
"tabs",
"badge",
"separator",
"checkbox",
"switch",
"slider",
"tooltip",
"dropdown-menu",
"table"
],
"identityNotes": [
"A continuous vertical core-sample column runs down the left edge through the whole page, divided into intervals coloured by role — cyan oxygen, amber hold, rust risk, hatched soil and rock — recolouring on palette swap because every interval maps to a semantic role.",
"A persistent meter depth ruler with tick marks sits left of the core, giving every reading a location in the strata; sections are horizontal strata stacked by depth, not columns in a binder.",
"Telemetry reads as dot-matrix punch grids whose lit dots take the metric's role colour, on a warm iron-oxide regolith ground tuned warm in its neutrals.",
"Display is Space Grotesk, geometric and wide and mixed-case; body is Spline Sans; readouts and part-IDs are Spline Sans Mono — never condensed all-caps."
],
"visualProfile": {
"family": "system",
"material": "flat",
"contour": "default",
"border": "solid",
"underlay": false,
"grain": false,
"stickerBadges": false,
"motion": "still",
"density": "dense",
"accents": [
"primary",
"accent",
"secondary",
"muted"
]
},
"shots": [
{
"id": "application-shell",
"title": "Application shell",
"viewport": "desktop",
"primitives": [
"button",
"card",
"input",
"select",
"tabs",
"badge",
"separator",
"table"
],
"composition": "A real product workspace with navigation, summary cards, filtering controls, and one dense content region.",
"mustShow": [
"primary and secondary actions",
"card hierarchy",
"filterable state",
"table or list density"
],
"avoid": [
"component inventory walls",
"placeholder-only content",
"generic rounded SaaS chrome"
],
"scene": {
"eyebrow": "workspace spread",
"headline": "Mascon launch room",
"description": "A product team workspace where navigation, filters, metrics, and dense rows carry the language's visible structure.",
"primaryAction": "Apply theme",
"secondaryAction": "Review states",
"stats": [
{
"label": "components",
"value": "16",
"tone": "accent"
},
{
"label": "states",
"value": "ready"
},
{
"label": "density",
"value": "balanced",
"tone": "warning"
}
],
"rows": [
{
"label": "Primary flow",
"value": "mapped",
"status": "active"
},
{
"label": "Token coverage",
"value": "semantic",
"status": "synced"
},
{
"label": "Responsive proof",
"value": "queued",
"status": "review"
}
],
"statuses": [
"Active",
"Synced",
"Draft"
]
}
},
{
"id": "detail-editor",
"title": "Detail editor",
"viewport": "tablet",
"primitives": [
"button",
"card",
"input",
"textarea",
"select",
"checkbox",
"switch",
"slider",
"dialog",
"sheet"
],
"composition": "A focused editing flow with form fields, validation, confirmation, and a contextual side panel.",
"mustShow": [
"focus ring",
"error or destructive state",
"dialog or sheet treatment",
"written guidance content"
],
"avoid": [
"unstyled browser controls",
"floating cards inside cards",
"missing labels"
],
"scene": {
"eyebrow": "editing flow",
"headline": "Language recipe editor",
"description": "A focused form proving labels, validation, toggles, panel rhythm, and action hierarchy.",
"primaryAction": "Save recipe",
"secondaryAction": "Open sheet",
"fields": [
{
"label": "Component family",
"value": "Narrative cards"
},
{
"label": "State treatment",
"value": "Visible focus + validation"
},
{
"label": "Motion",
"value": "Small lift, no opacity-only fade"
}
],
"statuses": [
"Focus",
"Invalid",
"Confirmed"
]
}
},
{
"id": "data-operations",
"title": "Data operations",
"viewport": "mobile",
"primitives": [
"button",
"tabs",
"badge",
"dropdown-menu",
"table",
"tooltip",
"separator"
],
"composition": "A compact operational view proving row rhythm, stacked actions, menu states, badges, and empty/destructive states.",
"mustShow": [
"responsive reflow",
"dense row styling",
"menu affordance",
"status badge system"
],
"avoid": [
"desktop-only tables",
"text overflow",
"default shadcn spacing without Katagami character"
],
"scene": {
"eyebrow": "operations",
"headline": "Compact review queue",
"description": "A narrow viewport scene with rows, menus, tooltips, badges, and destructive affordances.",
"primaryAction": "Resolve",
"secondaryAction": "Filter",
"rows": [
{
"label": "Button hierarchy",
"value": "approved",
"status": "ok"
},
{
"label": "Table rhythm",
"value": "needs pass",
"status": "watch"
},
{
"label": "Empty state",
"value": "designed",
"status": "done"
}
],
"statuses": [
"Queued",
"Blocked",
"Done"
]
}
}
],
"componentRecipes": [
{
"primitive": "button",
"intent": "Prove action hierarchy, focus, disabled, and destructive states."
},
{
"primitive": "card",
"intent": "Carry the language surface, border, elevation, and density rules."
},
{
"primitive": "input",
"intent": "Show labels, focus rings, validation, and spacing rhythm."
},
{
"primitive": "textarea",
"intent": "Show longer guidance, validation copy, and writing density."
},
{
"primitive": "select",
"intent": "Show filtering, selection contrast, and menu trigger styling."
},
{
"primitive": "dialog",
"intent": "Show centered decision states and overlay treatment."
},
{
"primitive": "sheet",
"intent": "Show contextual side panels and responsive editing."
},
{
"primitive": "tabs",
"intent": "Show navigational structure and active/inactive contrast."
},
{
"primitive": "badge",
"intent": "Show compact status vocabulary and semantic colors."
},
{
"primitive": "separator",
"intent": "Show section rhythm without generic gray dividers."
},
{
"primitive": "checkbox",
"intent": "Show binary selection with visible focus and checked states."
},
{
"primitive": "switch",
"intent": "Show settings toggles and on/off contrast."
},
{
"primitive": "slider",
"intent": "Show numeric adjustment with track/thumb styling."
},
{
"primitive": "tooltip",
"intent": "Show concise explanation styling above compact controls."
},
{
"primitive": "dropdown-menu",
"intent": "Show action menus, destructive items, and grouped choices."
},
{
"primitive": "table",
"intent": "Show dense operational data, separators, row states, and responsive behavior."
}
],
"qualityRules": {
"do": [
"Stack content by depth; let the meter ruler and core column orient every reading.",
"Lead with oxygen-cyan; reserve amber for hold and rust for alarm.",
"Keep one operator at human scale somewhere on the page.",
"Let the surface stratum breathe and the bedrock go quiet.",
"Read telemetry as dot-matrix punch grids in the metric's role colour.",
"Use mixed-case Space Grotesk display and mono readouts; pad above titles."
],
"dont": [
"Do not default to a black or white ground.",
"Do not use a left service-spine binder, full-width amber tape bars, condensed all-caps display, or seven-segment command capsules (that is the sibling, Regolith).",
"Do not spend an accent on decoration, give a card an accent edge, or box the masthead into a pill.",
"Do not use glow, bloom, neon, glass, or gradient washes.",
"Do not round to arbitrary radii or nest cards."
]
}
}