Terminal Brutalist Interface
A portable design language for agents: download the markdown first, then inspect the preview, tokens, and rules as needed.
Download DESIGN.md
Portable DESIGN.md source of truth for most agents and apps.
specification
philosophy
tokens
borders4 items
- accent width
- 4px
- character
- exposed construction lines in dark green, upgraded to amber for active or risky states
- default width
- 2px
- style
- solid with inset outline and square corner ticks
colors12 items
motion3 items
- duration
- 120ms
- easing
- steps(2, jump-end)
- philosophy
- motion snaps between terminal states with tiny pixel translations and no elastic easing
radii5 items
- full
- 0
- lg
- 0
- md
- 0
- none
- 0
- sm
- 0
shadows3 items
- lg
- 0 0 0 2px #D6A13B, 0 0 40px rgba(214,161,59,.18)
- md
- 0 0 0 2px #244A1F, 0 0 24px rgba(57,255,20,.18)
- sm
- 0 0 0 1px #244A1F, 0 0 12px rgba(57,255,20,.12)
spacing2 items
- base
- 8px
- scale
- 4, 8, 12, 16, 24, 32, 48, 64
surfaces3 items
- bg pattern
- repeating-linear-gradient grid at 8px plus faint horizontal CRT scanlines at 3px intervals
- card style
- zero-radius bordered modules with bracket headers, inset separators, and pseudo-element corner pixels
- treatment
- off-black terminal slabs with scanline overlays, 8px grid underlays, and occasional amber command strips
typography8 items
- base size
- 16px
- body font
- IBM Plex Mono
- google fonts url
- https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;500;600;700&family=Share+Tech+Mono&display=swap
- heading font
- Share Tech Mono
- letter spacing
- 0.01em
- line height
- 1.45
- mono font
- IBM Plex Mono
- scale ratio
- 1.2
rules
Build screens as command dashboards: a full-bleed off-black grid, a narrow status rail, large rectangular operating panels, and tables that align to an 8px bitmap measure.
High density is encouraged, but every cluster must snap to the 8px grid with explicit separators and predictable columns.
Headlines use oversized Share Tech Mono capitals; important state is shown by amber bracket headers and phosphor counters, while secondary copy stays muted green in compact mono rows.
layout
mobile 375px, tablet 768px, desktop 1200px, wide 1440px
Twelve-column desktop grid with an 8px baseline, collapsing to four columns on tablet and one command stack on mobile.
Whitespace is measured and mechanical: 8px internal gutters, 16px panel padding, 24px major gaps, never airy lifestyle spacing.
guidance
- Use real operational content: queues, logs, coordinates, build states, inventory, or diagnostics.
- Keep all corners square and align every separator, badge, and button to the same 8px grid.
- Use amber sparingly for warning, active prompts, and critical affordances.
- Make texture structural through CSS grids, scanlines, dithers, and borders.
- Do not add arcade characters, coin-op chrome, rainbow pixels, or playful game UI clichés.
- Do not round cards, blur glass, use pastel gradients, or soften the brutal terminal frame.
- Do not scatter random code snippets as decoration; every command line should imply a product function.
katagami spec
# Terminal Brutalist Interface ## Philosophy A hard-edged interface language that treats the browser like a phosphor terminal bolted to a brutalist control room: legible command blocks, exposed grid seams, diagnostic amber states, and deliberate low-resolution texture without nostalgia kitsch. ### Values - operational clarity before decoration - visible system structure and accountable state - low-resolution texture used as discipline, not gimmick - high contrast interfaces that feel engineered and durable ### Anti-Values - neon arcade excess, novelty sprites, or cute 8-bit mascots - soft glassmorphism, rounded SaaS defaults, and decorative gradients - illegible hacker cosplay with random code noise ### Visual Character - A black-green page shell uses layered CSS linear-gradients to create 8px terminal grid lines and subtle horizontal CRT scanlines across every surface. - Panels are rectangular with zero radius, 2px amber or phosphor borders, inset outline offsets, and square corner notch blocks built with pseudo-elements. - Content is arranged in monospace command rows with uppercase labels, fixed-width metrics, bracketed badges, and dense table-like columns rather than card stacks. - Interactive states use phosphor green fills, amber warning rails, and small pixel-step transforms instead of smooth floating shadows. ## Tokens ### Borders - **Accent Width**: 4px - **Character**: exposed construction lines in dark green, upgraded to amber for active or risky states - **Default Width**: 2px - **Style**: solid with inset outline and square corner ticks ### Colors | Name | Value | |------|-------| | accent | `#7CFF6B` | | background | `#060805` | | border | `#244A1F` | | error | `#FF4E3A` | | info | `#5FD7FF` | | muted | `#78946F` | | primary | `#39FF14` | | secondary | `#D6A13B` | | success | `#39FF14` | | surface | `#0B1209` | | text | `#D9FFD3` | | warning | `#D6A13B` | ### Motion - **Duration**: 120ms - **Easing**: steps(2, jump-end) - **Philosophy**: motion snaps between terminal states with tiny pixel translations and no elastic easing ### Radii - **Full**: 0 - **Lg**: 0 - **Md**: 0 - **None**: 0 - **Sm**: 0 ### Shadows - **Lg**: 0 0 0 2px #D6A13B, 0 0 40px rgba(214,161,59,.18) - **Md**: 0 0 0 2px #244A1F, 0 0 24px rgba(57,255,20,.18) - **Sm**: 0 0 0 1px #244A1F, 0 0 12px rgba(57,255,20,.12) ### Spacing - **Base**: 8px - **Scale**: [4,8,12,16,24,32,48,64] ### Surfaces - **Bg Pattern**: repeating-linear-gradient grid at 8px plus faint horizontal CRT scanlines at 3px intervals - **Card Style**: zero-radius bordered modules with bracket headers, inset separators, and pseudo-element corner pixels - **Treatment**: off-black terminal slabs with scanline overlays, 8px grid underlays, and occasional amber command strips ### Typography - **Base Size**: 16px - **Body Font**: IBM Plex Mono - **Google Fonts Url**: https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;500;600;700&family=Share+Tech+Mono&display=swap - **Heading Font**: Share Tech Mono - **Letter Spacing**: 0.01em - **Line Height**: 1.45 - **Mono Font**: IBM Plex Mono - **Scale Ratio**: 1.2 ## Rules ### Composition Build screens as command dashboards: a full-bleed off-black grid, a narrow status rail, large rectangular operating panels, and tables that align to an 8px bitmap measure. ### Density High density is encouraged, but every cluster must snap to the 8px grid with explicit separators and predictable columns. ### Hierarchy Headlines use oversized Share Tech Mono capitals; important state is shown by amber bracket headers and phosphor counters, while secondary copy stays muted green in compact mono rows. ### Signature Patterns - CRT matrix background made from layered repeating-linear-gradients: 8px vertical/horizontal grid lines plus 3px scanlines clipped through panels. - Bracketed command headers that combine a short uppercase label, amber terminal prompt, and right-aligned system timestamp in the same bordered strip. - Square corner notch pixels on panels and controls using ::before and ::after blocks positioned outside the 2px border. - Dithered status fills built from tiny repeating radial gradients so progress, risk, and selection states look bitmap-rendered rather than flat. ## Layout ### Breakpoints mobile 375px, tablet 768px, desktop 1200px, wide 1440px ### Grid Twelve-column desktop grid with an 8px baseline, collapsing to four columns on tablet and one command stack on mobile. ### Whitespace Whitespace is measured and mechanical: 8px internal gutters, 16px panel padding, 24px major gaps, never airy lifestyle spacing. ## Guidance ### Do - Use real operational content: queues, logs, coordinates, build states, inventory, or diagnostics. - Keep all corners square and align every separator, badge, and button to the same 8px grid. - Use amber sparingly for warning, active prompts, and critical affordances. - Make texture structural through CSS grids, scanlines, dithers, and borders. ### Don't - Do not add arcade characters, coin-op chrome, rainbow pixels, or playful game UI clichés. - Do not round cards, blur glass, use pastel gradients, or soften the brutal terminal frame. - Do not scatter random code snippets as decoration; every command line should imply a product function.
DESIGN.md
---
version: "alpha"
name: "Terminal Brutalist Interface"
description: "Agent-curated design language exported from Katagami as DESIGN.md."
colors:
accent: "#7CFF6B"
background: "#060805"
border: "#244A1F"
error: "#FF4E3A"
info: "#5FD7FF"
muted: "#78946F"
primary: "#39FF14"
secondary: "#D6A13B"
success: "#39FF14"
surface: "#0B1209"
text: "#D9FFD3"
warning: "#D6A13B"
typography:
headline-lg:
fontFamily: "Share Tech Mono"
fontSize: "1.728rem"
fontWeight: 700
lineHeight: 1.1
letterSpacing: "0.01em"
headline-md:
fontFamily: "Share Tech Mono"
fontSize: "1.44rem"
fontWeight: 600
lineHeight: 1.15
letterSpacing: "0.01em"
body-md:
fontFamily: "IBM Plex Mono"
fontSize: "16px"
fontWeight: 400
lineHeight: 1.45
letterSpacing: "0.01em"
label-md:
fontFamily: "IBM Plex Mono"
fontSize: "0.75rem"
fontWeight: 600
lineHeight: 1
letterSpacing: "0.08em"
rounded:
full: "0px"
lg: "0px"
md: "0px"
none: "0px"
sm: "0px"
spacing:
base: "8px"
xs: "4px"
sm: "8px"
md: "12px"
lg: "16px"
xl: "24px"
2xl: "32px"
3xl: "48px"
4xl: "64px"
components:
color-reference-accent:
backgroundColor: "{colors.accent}"
color-reference-background:
backgroundColor: "{colors.background}"
color-reference-border:
backgroundColor: "{colors.border}"
color-reference-error:
backgroundColor: "{colors.error}"
color-reference-info:
backgroundColor: "{colors.info}"
color-reference-muted:
backgroundColor: "{colors.muted}"
color-reference-primary:
backgroundColor: "{colors.primary}"
color-reference-secondary:
backgroundColor: "{colors.secondary}"
color-reference-success:
backgroundColor: "{colors.success}"
color-reference-surface:
backgroundColor: "{colors.surface}"
color-reference-text:
backgroundColor: "{colors.text}"
color-reference-warning:
backgroundColor: "{colors.warning}"
button-primary:
backgroundColor: "{colors.primary}"
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"
---
# Terminal Brutalist Interface
## Overview
A hard-edged interface language that treats the browser like a phosphor terminal bolted to a brutalist control room: legible command blocks, exposed grid seams, diagnostic amber states, and deliberate low-resolution texture without nostalgia kitsch.
### Values
- operational clarity before decoration
- visible system structure and accountable state
- low-resolution texture used as discipline, not gimmick
- high contrast interfaces that feel engineered and durable
### Anti-Values
- neon arcade excess, novelty sprites, or cute 8-bit mascots
- soft glassmorphism, rounded SaaS defaults, and decorative gradients
- illegible hacker cosplay with random code noise
### Visual Character
- A black-green page shell uses layered CSS linear-gradients to create 8px terminal grid lines and subtle horizontal CRT scanlines across every surface.
- Panels are rectangular with zero radius, 2px amber or phosphor borders, inset outline offsets, and square corner notch blocks built with pseudo-elements.
- Content is arranged in monospace command rows with uppercase labels, fixed-width metrics, bracketed badges, and dense table-like columns rather than card stacks.
- Interactive states use phosphor green fills, amber warning rails, and small pixel-step transforms instead of smooth floating shadows.
## Colors
Use the YAML color tokens as the normative palette. The prose below names the roles agents should preserve when generating UI.
| Token | Value |
|-------|-------|
| accent | `#7CFF6B` |
| background | `#060805` |
| border | `#244A1F` |
| error | `#FF4E3A` |
| info | `#5FD7FF` |
| muted | `#78946F` |
| primary | `#39FF14` |
| secondary | `#D6A13B` |
| success | `#39FF14` |
| surface | `#0B1209` |
| text | `#D9FFD3` |
| warning | `#D6A13B` |
## Typography
- **Headline-Lg**: Share Tech Mono, 1.728rem, weight 700, line-height 1.1.
- **Headline-Md**: Share Tech Mono, 1.44rem, weight 600, line-height 1.15.
- **Body-Md**: IBM Plex Mono, 16px, weight 400, line-height 1.45.
- **Label-Md**: IBM Plex 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`
### Breakpoints
mobile 375px, tablet 768px, desktop 1200px, wide 1440px
### Grid
Twelve-column desktop grid with an 8px baseline, collapsing to four columns on tablet and one command stack on mobile.
### Whitespace
Whitespace is measured and mechanical: 8px internal gutters, 16px panel padding, 24px major gaps, never airy lifestyle spacing.
## Elevation & Depth
### Shadows
- **Lg**: 0 0 0 2px #D6A13B, 0 0 40px rgba(214,161,59,.18)
- **Md**: 0 0 0 2px #244A1F, 0 0 24px rgba(57,255,20,.18)
- **Sm**: 0 0 0 1px #244A1F, 0 0 12px rgba(57,255,20,.12)
## Shapes
### Rounded
- **Full**: `0px`
- **Lg**: `0px`
- **Md**: `0px`
- **None**: `0px`
- **Sm**: `0px`
### Surfaces
- **Bg Pattern**: repeating-linear-gradient grid at 8px plus faint horizontal CRT scanlines at 3px intervals
- **Card Style**: zero-radius bordered modules with bracket headers, inset separators, and pseudo-element corner pixels
- **Treatment**: off-black terminal slabs with scanline overlays, 8px grid underlays, and occasional amber command strips
### Borders
- **Accent Width**: 4px
- **Character**: exposed construction lines in dark green, upgraded to amber for active or risky states
- **Default Width**: 2px
- **Style**: solid with inset outline and square corner ticks
## Components
### Composition
Build screens as command dashboards: a full-bleed off-black grid, a narrow status rail, large rectangular operating panels, and tables that align to an 8px bitmap measure.
### Density
High density is encouraged, but every cluster must snap to the 8px grid with explicit separators and predictable columns.
### Hierarchy
Headlines use oversized Share Tech Mono capitals; important state is shown by amber bracket headers and phosphor counters, while secondary copy stays muted green in compact mono rows.
### Signature Patterns
- CRT matrix background made from layered repeating-linear-gradients: 8px vertical/horizontal grid lines plus 3px scanlines clipped through panels.
- Bracketed command headers that combine a short uppercase label, amber terminal prompt, and right-aligned system timestamp in the same bordered strip.
- Square corner notch pixels on panels and controls using ::before and ::after blocks positioned outside the 2px border.
- Dithered status fills built from tiny repeating radial gradients so progress, risk, and selection states look bitmap-rendered rather than flat.
## 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-019e6998-d509-7523-a2a7-696831b6c2ca/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 Use real operational content: queues, logs, coordinates, build states, inventory, or diagnostics.
- Do Keep all corners square and align every separator, badge, and button to the same 8px grid.
- Do Use amber sparingly for warning, active prompts, and critical affordances.
- Do Make texture structural through CSS grids, scanlines, dithers, and borders.
- Don't Do not add arcade characters, coin-op chrome, rainbow pixels, or playful game UI clichés.
- Don't Do not round cards, blur glass, use pastel gradients, or soften the brutal terminal frame.
- Don't Do not scatter random code snippets as decoration; every command line should imply a product function.
shadcn/ui theme
```json
{
"$schema": "https://ui.shadcn.com/schema/registry-item.json",
"name": "terminal-brutalist-interface",
"type": "registry:theme",
"title": "Terminal Brutalist Interface shadcn Theme",
"cssVars": {
"theme": {},
"light": {
"background": "#060805",
"foreground": "#D9FFD3",
"card": "#0B1209",
"card-foreground": "#D9FFD3",
"popover": "#0B1209",
"popover-foreground": "#D9FFD3",
"primary": "#39FF14",
"primary-foreground": "#111111",
"secondary": "#D6A13B",
"secondary-foreground": "#ffffff",
"muted": "#78946F",
"muted-foreground": "#D9FFD3",
"accent": "#7CFF6B",
"accent-foreground": "#111111",
"destructive": "#FF4E3A",
"border": "#244A1F",
"input": "#244A1F",
"ring": "#7CFF6B",
"chart-1": "#39FF14",
"chart-2": "#D6A13B",
"chart-3": "#7CFF6B",
"chart-4": "#39FF14",
"chart-5": "#D6A13B",
"sidebar": "#0B1209",
"sidebar-foreground": "#D9FFD3",
"sidebar-primary": "#39FF14",
"sidebar-primary-foreground": "#111111",
"sidebar-accent": "#5FD7FF",
"sidebar-accent-foreground": "#111111",
"sidebar-border": "#244A1F",
"sidebar-ring": "#7CFF6B",
"radius": "0"
},
"dark": {
"background": "#0f1115",
"foreground": "#f8fafc",
"card": "#181b22",
"card-foreground": "#f8fafc",
"popover": "#181b22",
"popover-foreground": "#f8fafc",
"primary": "#39FF14",
"primary-foreground": "#111111",
"secondary": "#252a33",
"secondary-foreground": "#f8fafc",
"muted": "#252a33",
"muted-foreground": "#a1a1aa",
"accent": "#7CFF6B",
"accent-foreground": "#111111",
"destructive": "#FF4E3A",
"border": "#303642",
"input": "#303642",
"ring": "#7CFF6B",
"chart-1": "#39FF14",
"chart-2": "#D6A13B",
"chart-3": "#7CFF6B",
"chart-4": "#39FF14",
"chart-5": "#D6A13B",
"sidebar": "#181b22",
"sidebar-foreground": "#f8fafc",
"sidebar-primary": "#39FF14",
"sidebar-primary-foreground": "#111111",
"sidebar-accent": "#7CFF6B",
"sidebar-accent-foreground": "#111111",
"sidebar-border": "#303642",
"sidebar-ring": "#7CFF6B",
"radius": "0"
}
},
"meta": {
"source": "katagami",
"languageId": "en-019e6998-d509-7523-a2a7-696831b6c2ca",
"slug": "terminal-brutalist-interface",
"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": {
"borders": [
"accent_width",
"character",
"default_width",
"style"
],
"colors": [
"accent",
"background",
"border",
"error",
"info",
"muted",
"primary",
"secondary",
"success",
"surface",
"text",
"warning"
],
"motion": [
"duration",
"easing",
"philosophy"
],
"radii": [
"full",
"lg",
"md",
"none",
"sm"
],
"shadows": [
"lg",
"md",
"sm"
],
"spacing": [
"base",
"scale"
],
"surfaces": [
"bg_pattern",
"card_style",
"treatment"
],
"typography": [
"base_size",
"body_font",
"google_fonts_url",
"heading_font",
"letter_spacing",
"line_height",
"mono_font",
"scale_ratio"
]
}
}
}
```embodiments
at a glance
Typography
The quick brown fox jumps
The quick brown fox jumps
The quick brown fox jumps
The quick brown fox jumps
Components
Components rendered with this language’s tokens — colors, type, and rounded corners as specified.
Spacing
- base8px
- xs4px
- sm8px
- md12px
- lg16px
- xl24px
- 2xl32px
- 3xl48px
- 4xl64px
Shape
implementation kit
DESIGN.md with shadcn
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.
advanced implementation filesoptional machine-readable theme, CSS, TSX starter, recipes, and preview contract
npx shadcn@latest add button card input textarea select dialog sheet tabs badge separator checkbox switch slider tooltip dropdown-menu table:root {
--background: #060805;
--foreground: #D9FFD3;
--card: #0B1209;
--card-foreground: #D9FFD3;
--popover: #0B1209;
--popover-foreground: #D9FFD3;
--primary: #39FF14;
--primary-foreground: #111111;
--secondary: #D6A13B;
--secondary-foreground: #ffffff;
--muted: #78946F;
--muted-foreground: #D9FFD3;
--accent: #7CFF6B;
--accent-foreground: #111111;
--destructive: #FF4E3A;
--border: #244A1F;
--input: #244A1F;
--ring: #7CFF6B;
--chart-1: #39FF14;
--chart-2: #D6A13B;
--chart-3: #7CFF6B;
--chart-4: #39FF14;
--chart-5: #D6A13B;
--sidebar: #0B1209;
--sidebar-foreground: #D9FFD3;
--sidebar-primary: #39FF14;
--sidebar-primary-foreground: #111111;
--sidebar-accent: #5FD7FF;
--sidebar-accent-foreground: #111111;
--sidebar-border: #244A1F;
--sidebar-ring: #7CFF6B;
--radius: 0;
}
.dark {
--background: #0f1115;
--foreground: #f8fafc;
--card: #181b22;
--card-foreground: #f8fafc;
--popover: #181b22;
--popover-foreground: #f8fafc;
--primary: #39FF14;
--primary-foreground: #111111;
--secondary: #252a33;
--secondary-foreground: #f8fafc;
--muted: #252a33;
--muted-foreground: #a1a1aa;
--accent: #7CFF6B;
--accent-foreground: #111111;
--destructive: #FF4E3A;
--border: #303642;
--input: #303642;
--ring: #7CFF6B;
--chart-1: #39FF14;
--chart-2: #D6A13B;
--chart-3: #7CFF6B;
--chart-4: #39FF14;
--chart-5: #D6A13B;
--sidebar: #181b22;
--sidebar-foreground: #f8fafc;
--sidebar-primary: #39FF14;
--sidebar-primary-foreground: #111111;
--sidebar-accent: #7CFF6B;
--sidebar-accent-foreground: #111111;
--sidebar-border: #303642;
--sidebar-ring: #7CFF6B;
--radius: 0;
}
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 TerminalBrutalistInterfaceShadcnKit() {
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">Terminal Brutalist Interface</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": "terminal-brutalist-interface",
"type": "registry:theme",
"title": "Terminal Brutalist Interface shadcn Theme",
"cssVars": {
"theme": {},
"light": {
"background": "#060805",
"foreground": "#D9FFD3",
"card": "#0B1209",
"card-foreground": "#D9FFD3",
"popover": "#0B1209",
"popover-foreground": "#D9FFD3",
"primary": "#39FF14",
"primary-foreground": "#111111",
"secondary": "#D6A13B",
"secondary-foreground": "#ffffff",
"muted": "#78946F",
"muted-foreground": "#D9FFD3",
"accent": "#7CFF6B",
"accent-foreground": "#111111",
"destructive": "#FF4E3A",
"border": "#244A1F",
"input": "#244A1F",
"ring": "#7CFF6B",
"chart-1": "#39FF14",
"chart-2": "#D6A13B",
"chart-3": "#7CFF6B",
"chart-4": "#39FF14",
"chart-5": "#D6A13B",
"sidebar": "#0B1209",
"sidebar-foreground": "#D9FFD3",
"sidebar-primary": "#39FF14",
"sidebar-primary-foreground": "#111111",
"sidebar-accent": "#5FD7FF",
"sidebar-accent-foreground": "#111111",
"sidebar-border": "#244A1F",
"sidebar-ring": "#7CFF6B",
"radius": "0"
},
"dark": {
"background": "#0f1115",
"foreground": "#f8fafc",
"card": "#181b22",
"card-foreground": "#f8fafc",
"popover": "#181b22",
"popover-foreground": "#f8fafc",
"primary": "#39FF14",
"primary-foreground": "#111111",
"secondary": "#252a33",
"secondary-foreground": "#f8fafc",
"muted": "#252a33",
"muted-foreground": "#a1a1aa",
"accent": "#7CFF6B",
"accent-foreground": "#111111",
"destructive": "#FF4E3A",
"border": "#303642",
"input": "#303642",
"ring": "#7CFF6B",
"chart-1": "#39FF14",
"chart-2": "#D6A13B",
"chart-3": "#7CFF6B",
"chart-4": "#39FF14",
"chart-5": "#D6A13B",
"sidebar": "#181b22",
"sidebar-foreground": "#f8fafc",
"sidebar-primary": "#39FF14",
"sidebar-primary-foreground": "#111111",
"sidebar-accent": "#7CFF6B",
"sidebar-accent-foreground": "#111111",
"sidebar-border": "#303642",
"sidebar-ring": "#7CFF6B",
"radius": "0"
}
},
"meta": {
"source": "katagami",
"languageId": "en-019e6998-d509-7523-a2a7-696831b6c2ca",
"slug": "terminal-brutalist-interface",
"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": {
"borders": [
"accent_width",
"character",
"default_width",
"style"
],
"colors": [
"accent",
"background",
"border",
"error",
"info",
"muted",
"primary",
"secondary",
"success",
"surface",
"text",
"warning"
],
"motion": [
"duration",
"easing",
"philosophy"
],
"radii": [
"full",
"lg",
"md",
"none",
"sm"
],
"shadows": [
"lg",
"md",
"sm"
],
"spacing": [
"base",
"scale"
],
"surfaces": [
"bg_pattern",
"card_style",
"treatment"
],
"typography": [
"base_size",
"body_font",
"google_fonts_url",
"heading_font",
"letter_spacing",
"line_height",
"mono_font",
"scale_ratio"
]
}
}
}
# Terminal Brutalist Interface shadcn/ui Components
Artifact: `component-recipes-v1`
Author: `katagami-ui-projection`
Language ID: `en-019e6998-d509-7523-a2a7-696831b6c2ca`
Slug: `terminal-brutalist-interface`
## Intent
A hard-edged interface language that treats the browser like a phosphor terminal bolted to a brutalist control room: legible command blocks, exposed grid seams, diagnostic amber states, and deliberate low-resolution texture without nostalgia kitsch.
## 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:
{
"accent": "#7CFF6B",
"background": "#060805",
"border": "#244A1F",
"error": "#FF4E3A",
"info": "#5FD7FF",
"muted": "#78946F",
"primary": "#39FF14",
"secondary": "#D6A13B",
"success": "#39FF14",
"surface": "#0B1209",
"text": "#D9FFD3",
"warning": "#D6A13B"
}
Typography:
{
"base_size": "16px",
"body_font": "IBM Plex Mono",
"google_fonts_url": "https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;500;600;700&family=Share+Tech+Mono&display=swap",
"heading_font": "Share Tech Mono",
"letter_spacing": "0.01em",
"line_height": 1.45,
"mono_font": "IBM Plex Mono",
"scale_ratio": 1.2
}
## Visual character to preserve
- A black-green page shell uses layered CSS linear-gradients to create 8px terminal grid lines and subtle horizontal CRT scanlines across every surface.
- Panels are rectangular with zero radius, 2px amber or phosphor borders, inset outline offsets, and square corner notch blocks built with pseudo-elements.
- Content is arranged in monospace command rows with uppercase labels, fixed-width metrics, bracketed badges, and dense table-like columns rather than card stacks.
- Interactive states use phosphor green fills, amber warning rails, and small pixel-step transforms instead of smooth floating shadows.
## ShadSync visual profile
{
"family": "brutalist",
"material": "ink",
"contour": "default",
"border": "solid",
"underlay": true,
"grain": false,
"stickerBadges": true,
"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/terminal-brutalist-interface/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: Use real operational content: queues, logs, coordinates, build states, inventory, or diagnostics.; Keep all corners square and align every separator, badge, and button to the same 8px grid.; Use amber sparingly for warning, active prompts, and critical affordances.; Make texture structural through CSS grids, scanlines, dithers, and borders.
- Do not: Do not add arcade characters, coin-op chrome, rainbow pixels, or playful game UI clichés.; Do not round cards, blur glass, use pastel gradients, or soften the brutal terminal frame.; Do not scatter random code snippets as decoration; every command line should imply a product function.
## 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 TerminalBrutalistInterfaceShadcnKit() {
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">Terminal Brutalist Interface</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
{
"breakpoints": "mobile 375px, tablet 768px, desktop 1200px, wide 1440px",
"grid": "Twelve-column desktop grid with an 8px baseline, collapsing to four columns on tablet and one command stack on mobile.",
"whitespace": "Whitespace is measured and mechanical: 8px internal gutters, 16px panel padding, 24px major gaps, never airy lifestyle spacing."
}
{
"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-019e6998-d509-7523-a2a7-696831b6c2ca",
"name": "Terminal Brutalist Interface",
"slug": "terminal-brutalist-interface"
},
"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 black-green page shell uses layered CSS linear-gradients to create 8px terminal grid lines and subtle horizontal CRT scanlines across every surface.",
"Panels are rectangular with zero radius, 2px amber or phosphor borders, inset outline offsets, and square corner notch blocks built with pseudo-elements.",
"Content is arranged in monospace command rows with uppercase labels, fixed-width metrics, bracketed badges, and dense table-like columns rather than card stacks.",
"Interactive states use phosphor green fills, amber warning rails, and small pixel-step transforms instead of smooth floating shadows."
],
"visualProfile": {
"family": "brutalist",
"material": "ink",
"contour": "default",
"border": "solid",
"underlay": true,
"grain": false,
"stickerBadges": true,
"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": "Terminal Brutalist Interface 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": [
"Use real operational content: queues, logs, coordinates, build states, inventory, or diagnostics.",
"Keep all corners square and align every separator, badge, and button to the same 8px grid.",
"Use amber sparingly for warning, active prompts, and critical affordances.",
"Make texture structural through CSS grids, scanlines, dithers, and borders."
],
"dont": [
"Do not add arcade characters, coin-op chrome, rainbow pixels, or playful game UI clichés.",
"Do not round cards, blur glass, use pastel gradients, or soften the brutal terminal frame.",
"Do not scatter random code snippets as decoration; every command line should imply a product function."
]
}
}