Katagami Joinery Interface Structure
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
- 3px
- character
- sumi charcoal construction lines: crisp, square, and intentionally exposed
- default width
- 1px
- style
- solid with occasional double-rule dividers
colors12 items
motion3 items
- duration
- 160ms
- easing
- cubic-bezier(.2,.7,.1,1)
- philosophy
- small state confirmations: indigo fill, 1px translate, underline reveal; no bounce or decorative drift
radii5 items
- full
- 9999px
- lg
- 4px
- md
- 2px
- none
- 0
- sm
- 2px
shadows3 items
- lg
- 0 18px 40px rgba(16,25,35,.10)
- md
- 0 1px 0 rgba(44,41,36,.18)
- sm
- none
spacing2 items
- base
- 8px
- scale
- 4, 8, 12, 16, 24, 32, 48, 64, 96
surfaces3 items
- bg pattern
- nearly invisible paper fiber plus sparse 1px grid registration marks
- card style
- rectilinear bordered panels with notched apertures and joinery rails
- treatment
- warm washi off-white panels with fine fibrous noise and no glossy gradient
typography8 items
- base size
- 16px
- body font
- Noto Sans
- google fonts url
- https://fonts.googleapis.com/css2?family=IBM+Plex+Sans+JP:wght@500;600;700&family=Noto+Sans:wght@400;500;600&family=IBM+Plex+Mono:wght@400;500;600&display=swap
- heading font
- IBM Plex Sans JP
- letter spacing
- -0.01em
- line height
- 1.55
- mono font
- IBM Plex Mono
- scale ratio
- 1.22
rules
Build every screen from joined rectangular rails: one dominant work panel, one narrow status column, and at least one purposeful empty interval that remains empty.
Moderate working density with 24px module padding, 32-48px section intervals, and compact data rows only inside framed operational panels.
Use typographic weight, rail thickness, and indigo active fills for hierarchy; avoid drop-shadow elevation as the primary ordering device.
layout
mobile 375px single-column stacked rails; tablet 768px two-column work/context; desktop 1200px+ full 12-column joinery grid
Asymmetric 12-column joinery grid with 24px gutters, 64px left rail on desktop, and a dominant 7-column work panel beside a 3-column context panel.
Whitespace is treated as ma: keep large empty intervals around key decisions, never fill blank cells unless they improve task comprehension.
guidance
- Use square panels, exposed dividers, and rail weights to show product structure.
- Keep craft references abstract: cutouts, fiber, indigo, joinery, interval, not icons of fans or waves.
- Make active controls blue-black with clear AA contrast and visible keyboard focus.
- Allow asymmetry: one dominant panel and one quiet support column feels more authored than equal cards.
- Do not use decorative kimono, wave, sakura, or lantern motifs.
- Do not add soft glassmorphism, large radii, colorful status confetti, or generic gradients.
- Do not let texture reduce readability; fibers must remain below content contrast.
- Do not center every section or fill ma whitespace with filler widgets.
katagami spec
# Katagami Joinery Interface Structure ## Philosophy A clean web-app language for AYA that translates Japanese craft into structure rather than ornament: katagami cutout logic becomes panels and hit states, joinery becomes the grid, washi becomes quiet surface tactility, and indigo-sumi restraint gives active states depth without decorative nostalgia. ### Values - craft as interface grammar - disciplined negative space and ma - structural asymmetry - material restraint - precise product utility ### Anti-Values - decorative Japanese motifs applied as wallpaper - generic SaaS cards with craft labels - busy repeat patterns that compete with content - soft arbitrary radii or glow-heavy AI polish ### Visual Character - Square off-white panels use 1px charcoal borders plus occasional 3px left or top joinery rails to make hierarchy visible in CSS. - Katagami cutout logic appears as clipped corner notches, inset label apertures, and negative-space slots rather than illustrated patterns. - Layouts use an asymmetric 12-column joinery grid with deliberate empty cells and wide ma gutters between functional clusters. - Active and hover states fill with blue-black indigo while retaining thin sumi outlines and underlined text instead of shadows. - Washi tactility is expressed through low-opacity fibrous background gradients and subtle grain overlays on surfaces only. ## Tokens ### Borders - **Accent Width**: 3px - **Character**: sumi charcoal construction lines: crisp, square, and intentionally exposed - **Default Width**: 1px - **Style**: solid with occasional double-rule dividers ### Colors | Name | Value | |------|-------| | accent | `#142E52` | | background | `#F5F0E7` | | border | `#2C2924` | | error | `#8E2F24` | | info | `#285678` | | muted | `#746B5F` | | primary | `#101923` | | secondary | `#4B3424` | | success | `#3F6543` | | surface | `#FFFCF4` | | text | `#171512` | | warning | `#9A6A20` | ### Motion - **Duration**: 160ms - **Easing**: cubic-bezier(.2,.7,.1,1) - **Philosophy**: small state confirmations: indigo fill, 1px translate, underline reveal; no bounce or decorative drift ### Radii - **Full**: 9999px - **Lg**: 4px - **Md**: 2px - **None**: 0 - **Sm**: 2px ### Shadows - **Lg**: 0 18px 40px rgba(16,25,35,.10) - **Md**: 0 1px 0 rgba(44,41,36,.18) - **Sm**: none ### Spacing - **Base**: 8px - **Scale**: [4,8,12,16,24,32,48,64,96] ### Surfaces - **Bg Pattern**: nearly invisible paper fiber plus sparse 1px grid registration marks - **Card Style**: rectilinear bordered panels with notched apertures and joinery rails - **Treatment**: warm washi off-white panels with fine fibrous noise and no glossy gradient ### Typography - **Base Size**: 16px - **Body Font**: Noto Sans - **Google Fonts Url**: https://fonts.googleapis.com/css2?family=IBM+Plex+Sans+JP:wght@500;600;700&family=Noto+Sans:wght@400;500;600&family=IBM+Plex+Mono:wght@400;500;600&display=swap - **Heading Font**: IBM Plex Sans JP - **Letter Spacing**: -0.01em - **Line Height**: 1.55 - **Mono Font**: IBM Plex Mono - **Scale Ratio**: 1.22 ## Rules ### Composition Build every screen from joined rectangular rails: one dominant work panel, one narrow status column, and at least one purposeful empty interval that remains empty. ### Density Moderate working density with 24px module padding, 32-48px section intervals, and compact data rows only inside framed operational panels. ### Hierarchy Use typographic weight, rail thickness, and indigo active fills for hierarchy; avoid drop-shadow elevation as the primary ordering device. ### Signature Patterns - Notched-card corners made with linear-gradient masks that create katagami-like negative cutouts on product panels. - Joinery rails: 3px charcoal or indigo structural strips attached to only one side of a panel to indicate priority or active state. - Ma gutters: intentionally blank grid cells outlined by faint registration ticks rather than filled with decorative content. - Cutout hover states where buttons and table rows invert to indigo blue-black while retaining a thin off-white inset line. - Washi-fiber surface overlay using tiny low-contrast radial and linear gradients constrained to backgrounds and large panels. ## Layout ### Breakpoints mobile 375px single-column stacked rails; tablet 768px two-column work/context; desktop 1200px+ full 12-column joinery grid ### Grid Asymmetric 12-column joinery grid with 24px gutters, 64px left rail on desktop, and a dominant 7-column work panel beside a 3-column context panel. ### Whitespace Whitespace is treated as ma: keep large empty intervals around key decisions, never fill blank cells unless they improve task comprehension. ## Guidance ### Do - Use square panels, exposed dividers, and rail weights to show product structure. - Keep craft references abstract: cutouts, fiber, indigo, joinery, interval, not icons of fans or waves. - Make active controls blue-black with clear AA contrast and visible keyboard focus. - Allow asymmetry: one dominant panel and one quiet support column feels more authored than equal cards. ### Don't - Do not use decorative kimono, wave, sakura, or lantern motifs. - Do not add soft glassmorphism, large radii, colorful status confetti, or generic gradients. - Do not let texture reduce readability; fibers must remain below content contrast. - Do not center every section or fill ma whitespace with filler widgets. ### Accessibility Maintain WCAG AA contrast, preserve visible focus outlines with 2px indigo/cream double states, and never encode status by color alone.
DESIGN.md
---
version: "alpha"
name: "Katagami Joinery Interface Structure"
description: "Agent-curated design language exported from Katagami as DESIGN.md."
colors:
accent: "#142E52"
background: "#F5F0E7"
border: "#2C2924"
error: "#8E2F24"
info: "#285678"
muted: "#746B5F"
primary: "#101923"
secondary: "#4B3424"
success: "#3F6543"
surface: "#FFFCF4"
text: "#171512"
warning: "#9A6A20"
typography:
headline-lg:
fontFamily: "IBM Plex Sans JP"
fontSize: "1.816rem"
fontWeight: 700
lineHeight: 1.1
letterSpacing: "-0.01em"
headline-md:
fontFamily: "IBM Plex Sans JP"
fontSize: "1.488rem"
fontWeight: 600
lineHeight: 1.15
letterSpacing: "-0.01em"
body-md:
fontFamily: "Noto Sans"
fontSize: "16px"
fontWeight: 400
lineHeight: 1.55
letterSpacing: "-0.01em"
label-md:
fontFamily: "IBM Plex Mono"
fontSize: "0.75rem"
fontWeight: 600
lineHeight: 1
letterSpacing: "0.08em"
rounded:
full: "9999px"
lg: "4px"
md: "2px"
none: "0px"
sm: "2px"
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-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: "#ffffff"
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"
---
# Katagami Joinery Interface Structure
## Overview
A clean web-app language for AYA that translates Japanese craft into structure rather than ornament: katagami cutout logic becomes panels and hit states, joinery becomes the grid, washi becomes quiet surface tactility, and indigo-sumi restraint gives active states depth without decorative nostalgia.
### Values
- craft as interface grammar
- disciplined negative space and ma
- structural asymmetry
- material restraint
- precise product utility
### Anti-Values
- decorative Japanese motifs applied as wallpaper
- generic SaaS cards with craft labels
- busy repeat patterns that compete with content
- soft arbitrary radii or glow-heavy AI polish
### Visual Character
- Square off-white panels use 1px charcoal borders plus occasional 3px left or top joinery rails to make hierarchy visible in CSS.
- Katagami cutout logic appears as clipped corner notches, inset label apertures, and negative-space slots rather than illustrated patterns.
- Layouts use an asymmetric 12-column joinery grid with deliberate empty cells and wide ma gutters between functional clusters.
- Active and hover states fill with blue-black indigo while retaining thin sumi outlines and underlined text instead of shadows.
- Washi tactility is expressed through low-opacity fibrous background gradients and subtle grain overlays on surfaces only.
## 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 | `#142E52` |
| background | `#F5F0E7` |
| border | `#2C2924` |
| error | `#8E2F24` |
| info | `#285678` |
| muted | `#746B5F` |
| primary | `#101923` |
| secondary | `#4B3424` |
| success | `#3F6543` |
| surface | `#FFFCF4` |
| text | `#171512` |
| warning | `#9A6A20` |
## Typography
- **Headline-Lg**: IBM Plex Sans JP, 1.816rem, weight 700, line-height 1.1.
- **Headline-Md**: IBM Plex Sans JP, 1.488rem, weight 600, line-height 1.15.
- **Body-Md**: Noto Sans, 16px, weight 400, line-height 1.55.
- **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`
- **Step-8**: `96px`
### Breakpoints
mobile 375px single-column stacked rails; tablet 768px two-column work/context; desktop 1200px+ full 12-column joinery grid
### Grid
Asymmetric 12-column joinery grid with 24px gutters, 64px left rail on desktop, and a dominant 7-column work panel beside a 3-column context panel.
### Whitespace
Whitespace is treated as ma: keep large empty intervals around key decisions, never fill blank cells unless they improve task comprehension.
## Elevation & Depth
### Shadows
- **Lg**: 0 18px 40px rgba(16,25,35,.10)
- **Md**: 0 1px 0 rgba(44,41,36,.18)
- **Sm**: none
## Shapes
### Rounded
- **Full**: `9999px`
- **Lg**: `4px`
- **Md**: `2px`
- **None**: `0px`
- **Sm**: `2px`
### Surfaces
- **Bg Pattern**: nearly invisible paper fiber plus sparse 1px grid registration marks
- **Card Style**: rectilinear bordered panels with notched apertures and joinery rails
- **Treatment**: warm washi off-white panels with fine fibrous noise and no glossy gradient
### Borders
- **Accent Width**: 3px
- **Character**: sumi charcoal construction lines: crisp, square, and intentionally exposed
- **Default Width**: 1px
- **Style**: solid with occasional double-rule dividers
## Components
### Composition
Build every screen from joined rectangular rails: one dominant work panel, one narrow status column, and at least one purposeful empty interval that remains empty.
### Density
Moderate working density with 24px module padding, 32-48px section intervals, and compact data rows only inside framed operational panels.
### Hierarchy
Use typographic weight, rail thickness, and indigo active fills for hierarchy; avoid drop-shadow elevation as the primary ordering device.
### Signature Patterns
- Notched-card corners made with linear-gradient masks that create katagami-like negative cutouts on product panels.
- Joinery rails: 3px charcoal or indigo structural strips attached to only one side of a panel to indicate priority or active state.
- Ma gutters: intentionally blank grid cells outlined by faint registration ticks rather than filled with decorative content.
- Cutout hover states where buttons and table rows invert to indigo blue-black while retaining a thin off-white inset line.
- Washi-fiber surface overlay using tiny low-contrast radial and linear gradients constrained to backgrounds and large panels.
## 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-019edc13-e249-7732-a4cf-117da32c802f/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 square panels, exposed dividers, and rail weights to show product structure.
- Do Keep craft references abstract: cutouts, fiber, indigo, joinery, interval, not icons of fans or waves.
- Do Make active controls blue-black with clear AA contrast and visible keyboard focus.
- Do Allow asymmetry: one dominant panel and one quiet support column feels more authored than equal cards.
- Don't Do not use decorative kimono, wave, sakura, or lantern motifs.
- Don't Do not add soft glassmorphism, large radii, colorful status confetti, or generic gradients.
- Don't Do not let texture reduce readability; fibers must remain below content contrast.
- Don't Do not center every section or fill ma whitespace with filler widgets.
### Accessibility
Maintain WCAG AA contrast, preserve visible focus outlines with 2px indigo/cream double states, and never encode status by color alone.
shadcn/ui theme
```json
{
"$schema": "https://ui.shadcn.com/schema/registry-item.json",
"name": "katagami-joinery-interface-structure",
"type": "registry:theme",
"title": "Katagami Joinery Interface Structure shadcn Theme",
"cssVars": {
"theme": {},
"light": {
"background": "#F5F0E7",
"foreground": "#171512",
"card": "#FFFCF4",
"card-foreground": "#171512",
"popover": "#FFFCF4",
"popover-foreground": "#171512",
"primary": "#101923",
"primary-foreground": "#ffffff",
"secondary": "#4B3424",
"secondary-foreground": "#ffffff",
"muted": "#746B5F",
"muted-foreground": "#171512",
"accent": "#142E52",
"accent-foreground": "#ffffff",
"destructive": "#8E2F24",
"border": "#2C2924",
"input": "#2C2924",
"ring": "#142E52",
"chart-1": "#101923",
"chart-2": "#4B3424",
"chart-3": "#142E52",
"chart-4": "#3F6543",
"chart-5": "#9A6A20",
"sidebar": "#FFFCF4",
"sidebar-foreground": "#171512",
"sidebar-primary": "#101923",
"sidebar-primary-foreground": "#ffffff",
"sidebar-accent": "#285678",
"sidebar-accent-foreground": "#ffffff",
"sidebar-border": "#2C2924",
"sidebar-ring": "#142E52",
"radius": "2px"
},
"dark": {
"background": "#0f1115",
"foreground": "#f8fafc",
"card": "#181b22",
"card-foreground": "#f8fafc",
"popover": "#181b22",
"popover-foreground": "#f8fafc",
"primary": "#101923",
"primary-foreground": "#ffffff",
"secondary": "#252a33",
"secondary-foreground": "#f8fafc",
"muted": "#252a33",
"muted-foreground": "#a1a1aa",
"accent": "#142E52",
"accent-foreground": "#ffffff",
"destructive": "#8E2F24",
"border": "#303642",
"input": "#303642",
"ring": "#142E52",
"chart-1": "#101923",
"chart-2": "#4B3424",
"chart-3": "#142E52",
"chart-4": "#3F6543",
"chart-5": "#9A6A20",
"sidebar": "#181b22",
"sidebar-foreground": "#f8fafc",
"sidebar-primary": "#101923",
"sidebar-primary-foreground": "#ffffff",
"sidebar-accent": "#142E52",
"sidebar-accent-foreground": "#ffffff",
"sidebar-border": "#303642",
"sidebar-ring": "#142E52",
"radius": "2px"
}
},
"meta": {
"source": "katagami",
"languageId": "en-019edc13-e249-7732-a4cf-117da32c802f",
"slug": "katagami-joinery-interface-structure",
"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
- step-896px
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: #F5F0E7;
--foreground: #171512;
--card: #FFFCF4;
--card-foreground: #171512;
--popover: #FFFCF4;
--popover-foreground: #171512;
--primary: #101923;
--primary-foreground: #ffffff;
--secondary: #4B3424;
--secondary-foreground: #ffffff;
--muted: #746B5F;
--muted-foreground: #171512;
--accent: #142E52;
--accent-foreground: #ffffff;
--destructive: #8E2F24;
--border: #2C2924;
--input: #2C2924;
--ring: #142E52;
--chart-1: #101923;
--chart-2: #4B3424;
--chart-3: #142E52;
--chart-4: #3F6543;
--chart-5: #9A6A20;
--sidebar: #FFFCF4;
--sidebar-foreground: #171512;
--sidebar-primary: #101923;
--sidebar-primary-foreground: #ffffff;
--sidebar-accent: #285678;
--sidebar-accent-foreground: #ffffff;
--sidebar-border: #2C2924;
--sidebar-ring: #142E52;
--radius: 2px;
}
.dark {
--background: #0f1115;
--foreground: #f8fafc;
--card: #181b22;
--card-foreground: #f8fafc;
--popover: #181b22;
--popover-foreground: #f8fafc;
--primary: #101923;
--primary-foreground: #ffffff;
--secondary: #252a33;
--secondary-foreground: #f8fafc;
--muted: #252a33;
--muted-foreground: #a1a1aa;
--accent: #142E52;
--accent-foreground: #ffffff;
--destructive: #8E2F24;
--border: #303642;
--input: #303642;
--ring: #142E52;
--chart-1: #101923;
--chart-2: #4B3424;
--chart-3: #142E52;
--chart-4: #3F6543;
--chart-5: #9A6A20;
--sidebar: #181b22;
--sidebar-foreground: #f8fafc;
--sidebar-primary: #101923;
--sidebar-primary-foreground: #ffffff;
--sidebar-accent: #142E52;
--sidebar-accent-foreground: #ffffff;
--sidebar-border: #303642;
--sidebar-ring: #142E52;
--radius: 2px;
}
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 KatagamiJoineryInterfaceStructureShadcnKit() {
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">Katagami Joinery Interface Structure</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": "katagami-joinery-interface-structure",
"type": "registry:theme",
"title": "Katagami Joinery Interface Structure shadcn Theme",
"cssVars": {
"theme": {},
"light": {
"background": "#F5F0E7",
"foreground": "#171512",
"card": "#FFFCF4",
"card-foreground": "#171512",
"popover": "#FFFCF4",
"popover-foreground": "#171512",
"primary": "#101923",
"primary-foreground": "#ffffff",
"secondary": "#4B3424",
"secondary-foreground": "#ffffff",
"muted": "#746B5F",
"muted-foreground": "#171512",
"accent": "#142E52",
"accent-foreground": "#ffffff",
"destructive": "#8E2F24",
"border": "#2C2924",
"input": "#2C2924",
"ring": "#142E52",
"chart-1": "#101923",
"chart-2": "#4B3424",
"chart-3": "#142E52",
"chart-4": "#3F6543",
"chart-5": "#9A6A20",
"sidebar": "#FFFCF4",
"sidebar-foreground": "#171512",
"sidebar-primary": "#101923",
"sidebar-primary-foreground": "#ffffff",
"sidebar-accent": "#285678",
"sidebar-accent-foreground": "#ffffff",
"sidebar-border": "#2C2924",
"sidebar-ring": "#142E52",
"radius": "2px"
},
"dark": {
"background": "#0f1115",
"foreground": "#f8fafc",
"card": "#181b22",
"card-foreground": "#f8fafc",
"popover": "#181b22",
"popover-foreground": "#f8fafc",
"primary": "#101923",
"primary-foreground": "#ffffff",
"secondary": "#252a33",
"secondary-foreground": "#f8fafc",
"muted": "#252a33",
"muted-foreground": "#a1a1aa",
"accent": "#142E52",
"accent-foreground": "#ffffff",
"destructive": "#8E2F24",
"border": "#303642",
"input": "#303642",
"ring": "#142E52",
"chart-1": "#101923",
"chart-2": "#4B3424",
"chart-3": "#142E52",
"chart-4": "#3F6543",
"chart-5": "#9A6A20",
"sidebar": "#181b22",
"sidebar-foreground": "#f8fafc",
"sidebar-primary": "#101923",
"sidebar-primary-foreground": "#ffffff",
"sidebar-accent": "#142E52",
"sidebar-accent-foreground": "#ffffff",
"sidebar-border": "#303642",
"sidebar-ring": "#142E52",
"radius": "2px"
}
},
"meta": {
"source": "katagami",
"languageId": "en-019edc13-e249-7732-a4cf-117da32c802f",
"slug": "katagami-joinery-interface-structure",
"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"
]
}
}
}
# Katagami Joinery Interface Structure shadcn/ui Components
Artifact: `component-recipes-v1`
Author: `katagami-ui-projection`
Language ID: `en-019edc13-e249-7732-a4cf-117da32c802f`
Slug: `katagami-joinery-interface-structure`
## Intent
A clean web-app language for AYA that translates Japanese craft into structure rather than ornament: katagami cutout logic becomes panels and hit states, joinery becomes the grid, washi becomes quiet surface tactility, and indigo-sumi restraint gives active states depth without decorative nostalgia.
## 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": "#142E52",
"background": "#F5F0E7",
"border": "#2C2924",
"error": "#8E2F24",
"info": "#285678",
"muted": "#746B5F",
"primary": "#101923",
"secondary": "#4B3424",
"success": "#3F6543",
"surface": "#FFFCF4",
"text": "#171512",
"warning": "#9A6A20"
}
Typography:
{
"base_size": "16px",
"body_font": "Noto Sans",
"google_fonts_url": "https://fonts.googleapis.com/css2?family=IBM+Plex+Sans+JP:wght@500;600;700&family=Noto+Sans:wght@400;500;600&family=IBM+Plex+Mono:wght@400;500;600&display=swap",
"heading_font": "IBM Plex Sans JP",
"letter_spacing": "-0.01em",
"line_height": 1.55,
"mono_font": "IBM Plex Mono",
"scale_ratio": 1.22
}
## Visual character to preserve
- Square off-white panels use 1px charcoal borders plus occasional 3px left or top joinery rails to make hierarchy visible in CSS.
- Katagami cutout logic appears as clipped corner notches, inset label apertures, and negative-space slots rather than illustrated patterns.
- Layouts use an asymmetric 12-column joinery grid with deliberate empty cells and wide ma gutters between functional clusters.
- Active and hover states fill with blue-black indigo while retaining thin sumi outlines and underlined text instead of shadows.
- Washi tactility is expressed through low-opacity fibrous background gradients and subtle grain overlays on surfaces only.
## ShadSync visual profile
{
"family": "paper-collage",
"material": "paper",
"contour": "default",
"border": "solid",
"underlay": false,
"grain": true,
"stickerBadges": false,
"motion": "still",
"density": "balanced",
"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/katagami-joinery-interface-structure/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 square panels, exposed dividers, and rail weights to show product structure.; Keep craft references abstract: cutouts, fiber, indigo, joinery, interval, not icons of fans or waves.; Make active controls blue-black with clear AA contrast and visible keyboard focus.; Allow asymmetry: one dominant panel and one quiet support column feels more authored than equal cards.
- Do not: Do not use decorative kimono, wave, sakura, or lantern motifs.; Do not add soft glassmorphism, large radii, colorful status confetti, or generic gradients.; Do not let texture reduce readability; fibers must remain below content contrast.; Do not center every section or fill ma whitespace with filler widgets.
## 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 KatagamiJoineryInterfaceStructureShadcnKit() {
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">Katagami Joinery Interface Structure</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 single-column stacked rails; tablet 768px two-column work/context; desktop 1200px+ full 12-column joinery grid",
"grid": "Asymmetric 12-column joinery grid with 24px gutters, 64px left rail on desktop, and a dominant 7-column work panel beside a 3-column context panel.",
"whitespace": "Whitespace is treated as ma: keep large empty intervals around key decisions, never fill blank cells unless they improve task comprehension."
}
{
"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-019edc13-e249-7732-a4cf-117da32c802f",
"name": "Katagami Joinery Interface Structure",
"slug": "katagami-joinery-interface-structure"
},
"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": [
"Square off-white panels use 1px charcoal borders plus occasional 3px left or top joinery rails to make hierarchy visible in CSS.",
"Katagami cutout logic appears as clipped corner notches, inset label apertures, and negative-space slots rather than illustrated patterns.",
"Layouts use an asymmetric 12-column joinery grid with deliberate empty cells and wide ma gutters between functional clusters.",
"Active and hover states fill with blue-black indigo while retaining thin sumi outlines and underlined text instead of shadows.",
"Washi tactility is expressed through low-opacity fibrous background gradients and subtle grain overlays on surfaces only."
],
"visualProfile": {
"family": "paper-collage",
"material": "paper",
"contour": "default",
"border": "solid",
"underlay": false,
"grain": true,
"stickerBadges": false,
"motion": "still",
"density": "balanced",
"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": "Katagami Joinery Interface Structure 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 square panels, exposed dividers, and rail weights to show product structure.",
"Keep craft references abstract: cutouts, fiber, indigo, joinery, interval, not icons of fans or waves.",
"Make active controls blue-black with clear AA contrast and visible keyboard focus.",
"Allow asymmetry: one dominant panel and one quiet support column feels more authored than equal cards."
],
"dont": [
"Do not use decorative kimono, wave, sakura, or lantern motifs.",
"Do not add soft glassmorphism, large radii, colorful status confetti, or generic gradients.",
"Do not let texture reduce readability; fibers must remain below content contrast.",
"Do not center every section or fill ma whitespace with filler widgets."
]
}
}