npx shadcn@latest add button card input textarea select dialog sheet tabs badge separator checkbox switch slider tooltip dropdown-menu table

:root {
  --background: #140012;
  --foreground: #1A0916;
  --card: #FFF4D6;
  --card-foreground: #1A0916;
  --popover: #FFF4D6;
  --popover-foreground: #1A0916;
  --primary: #F5222D;
  --primary-foreground: #ffffff;
  --secondary: #006BFF;
  --secondary-foreground: #ffffff;
  --muted: #6B4A5C;
  --muted-foreground: #1A0916;
  --accent: #FFE51F;
  --accent-foreground: #111111;
  --destructive: #FF2E2E;
  --border: #0A0010;
  --input: #0A0010;
  --ring: #FFE51F;
  --chart-1: #F5222D;
  --chart-2: #006BFF;
  --chart-3: #FFE51F;
  --chart-4: #25E25A;
  --chart-5: #FFB000;
  --sidebar: #FFF4D6;
  --sidebar-foreground: #1A0916;
  --sidebar-primary: #F5222D;
  --sidebar-primary-foreground: #ffffff;
  --sidebar-accent: #00D7FF;
  --sidebar-accent-foreground: #111111;
  --sidebar-border: #0A0010;
  --sidebar-ring: #FFE51F;
  --radius: 0;
}

.dark {
  --background: #0f1115;
  --foreground: #f8fafc;
  --card: #181b22;
  --card-foreground: #f8fafc;
  --popover: #181b22;
  --popover-foreground: #f8fafc;
  --primary: #F5222D;
  --primary-foreground: #ffffff;
  --secondary: #252a33;
  --secondary-foreground: #f8fafc;
  --muted: #252a33;
  --muted-foreground: #a1a1aa;
  --accent: #FFE51F;
  --accent-foreground: #111111;
  --destructive: #FF2E2E;
  --border: #303642;
  --input: #303642;
  --ring: #FFE51F;
  --chart-1: #F5222D;
  --chart-2: #006BFF;
  --chart-3: #FFE51F;
  --chart-4: #25E25A;
  --chart-5: #FFB000;
  --sidebar: #181b22;
  --sidebar-foreground: #f8fafc;
  --sidebar-primary: #F5222D;
  --sidebar-primary-foreground: #ffffff;
  --sidebar-accent: #FFE51F;
  --sidebar-accent-foreground: #111111;
  --sidebar-border: #303642;
  --sidebar-ring: #FFE51F;
  --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 ArcadeSnackMaximalismShadcnKit() {
  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">Arcade Snack Maximalism</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": "arcade-snack-maximalism",
  "type": "registry:theme",
  "title": "Arcade Snack Maximalism shadcn Theme",
  "cssVars": {
    "theme": {},
    "light": {
      "background": "#140012",
      "foreground": "#1A0916",
      "card": "#FFF4D6",
      "card-foreground": "#1A0916",
      "popover": "#FFF4D6",
      "popover-foreground": "#1A0916",
      "primary": "#F5222D",
      "primary-foreground": "#ffffff",
      "secondary": "#006BFF",
      "secondary-foreground": "#ffffff",
      "muted": "#6B4A5C",
      "muted-foreground": "#1A0916",
      "accent": "#FFE51F",
      "accent-foreground": "#111111",
      "destructive": "#FF2E2E",
      "border": "#0A0010",
      "input": "#0A0010",
      "ring": "#FFE51F",
      "chart-1": "#F5222D",
      "chart-2": "#006BFF",
      "chart-3": "#FFE51F",
      "chart-4": "#25E25A",
      "chart-5": "#FFB000",
      "sidebar": "#FFF4D6",
      "sidebar-foreground": "#1A0916",
      "sidebar-primary": "#F5222D",
      "sidebar-primary-foreground": "#ffffff",
      "sidebar-accent": "#00D7FF",
      "sidebar-accent-foreground": "#111111",
      "sidebar-border": "#0A0010",
      "sidebar-ring": "#FFE51F",
      "radius": "0"
    },
    "dark": {
      "background": "#0f1115",
      "foreground": "#f8fafc",
      "card": "#181b22",
      "card-foreground": "#f8fafc",
      "popover": "#181b22",
      "popover-foreground": "#f8fafc",
      "primary": "#F5222D",
      "primary-foreground": "#ffffff",
      "secondary": "#252a33",
      "secondary-foreground": "#f8fafc",
      "muted": "#252a33",
      "muted-foreground": "#a1a1aa",
      "accent": "#FFE51F",
      "accent-foreground": "#111111",
      "destructive": "#FF2E2E",
      "border": "#303642",
      "input": "#303642",
      "ring": "#FFE51F",
      "chart-1": "#F5222D",
      "chart-2": "#006BFF",
      "chart-3": "#FFE51F",
      "chart-4": "#25E25A",
      "chart-5": "#FFB000",
      "sidebar": "#181b22",
      "sidebar-foreground": "#f8fafc",
      "sidebar-primary": "#F5222D",
      "sidebar-primary-foreground": "#ffffff",
      "sidebar-accent": "#FFE51F",
      "sidebar-accent-foreground": "#111111",
      "sidebar-border": "#303642",
      "sidebar-ring": "#FFE51F",
      "radius": "0"
    }
  },
  "meta": {
    "source": "katagami",
    "languageId": "en-019e69a6-505d-7720-a73f-b522cff571a6",
    "slug": "arcade-snack-maximalism",
    "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"
      ]
    }
  }
}

# Arcade Snack Maximalism shadcn/ui Components

Artifact: `component-recipes-v1`
Author: `katagami-ui-projection`
Language ID: `en-019e69a6-505d-7720-a73f-b522cff571a6`
Slug: `arcade-snack-maximalism`

## Intent

A loud but controlled product language for snack-driven arcade worlds: interfaces behave like a prize-wall menu, a candy wrapper, and an 8-bit cabinet marquee all at once, with pixel structure doing real work for navigation, inventory, status, and purchase flow.

## 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": "#FFE51F",
  "background": "#140012",
  "border": "#0A0010",
  "error": "#FF2E2E",
  "info": "#00D7FF",
  "muted": "#6B4A5C",
  "primary": "#F5222D",
  "secondary": "#006BFF",
  "success": "#25E25A",
  "surface": "#FFF4D6",
  "text": "#1A0916",
  "warning": "#FFB000"
}

Typography:

{
  "base_size": "16px",
  "body_font": "Atkinson Hyperlegible",
  "google_fonts_url": "https://fonts.googleapis.com/css2?family=Atkinson+Hyperlegible:wght@400;700&family=Bungee&family=Pixelify+Sans:wght@400;600;700&display=swap",
  "heading_font": "Bungee",
  "letter_spacing": "-0.01em",
  "line_height": 1.45,
  "mono_font": "Pixelify Sans",
  "scale_ratio": 1.25
}

## Visual character to preserve

- CSS uses hard 0px radii, 4px stepped box-shadows, and double-thick black outlines so every panel reads like a physical cabinet tile.
- Layouts are built on an 8px bitmap grid with repeating-linear-gradient pixel rails, quantized gaps, and square inventory cells rather than fluid decorative spacing.
- Color blocks use soda red, electric blue, lemon yellow, and candy green as flat indexed fills with no blur, preserving arcade snack wrapper contrast.
- Headers combine oversized Bungee marquee type with small Pixelify Sans labels, while Atkinson Hyperlegible keeps transactional text readable.
- State changes appear as sprite-like badges, coin-slot progress blocks, CRT scanline overlays, and dithering patches attached to real controls and data.

## ShadSync visual profile

{
  "family": "paper-collage",
  "material": "paper",
  "contour": "default",
  "border": "solid",
  "underlay": true,
  "grain": false,
  "stickerBadges": true,
  "motion": "lift",
  "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/arcade-snack-maximalism/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 saturated colors as indexed structural zones, not airbrushed decoration.; Make every pixel motif carry state, grouping, price, inventory, or navigation meaning.; Keep body copy in Atkinson Hyperlegible and reserve novelty pixel type for labels and counters.; Use square corners, hard shadows, and step motion consistently across components.
- Do not: Do not mix rounded SaaS cards with cabinet geometry.; Do not place checkerboards or scanlines over paragraphs where they reduce readability.; Do not use gradients, glassmorphism, blur shadows, or nostalgic props that do not organize the interface.; Do not let all four bright colors compete at the same hierarchy level.

## 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 ArcadeSnackMaximalismShadcnKit() {
  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">Arcade Snack Maximalism</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, tablet 768px two-column, desktop 1200px+ three-zone cabinet",
  "grid": "8px base grid with 4-column mobile stacking, 8-column tablet shelves, and a 12-column desktop cabinet where the center playfield is dominant.",
  "whitespace": "Whitespace is quantized and chunky: 16px inside dense cells, 24px between product groups, and 32px around the marquee shell."
}

{
  "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-019e69a6-505d-7720-a73f-b522cff571a6",
    "name": "Arcade Snack Maximalism",
    "slug": "arcade-snack-maximalism"
  },
  "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": [
    "CSS uses hard 0px radii, 4px stepped box-shadows, and double-thick black outlines so every panel reads like a physical cabinet tile.",
    "Layouts are built on an 8px bitmap grid with repeating-linear-gradient pixel rails, quantized gaps, and square inventory cells rather than fluid decorative spacing.",
    "Color blocks use soda red, electric blue, lemon yellow, and candy green as flat indexed fills with no blur, preserving arcade snack wrapper contrast.",
    "Headers combine oversized Bungee marquee type with small Pixelify Sans labels, while Atkinson Hyperlegible keeps transactional text readable.",
    "State changes appear as sprite-like badges, coin-slot progress blocks, CRT scanline overlays, and dithering patches attached to real controls and data."
  ],
  "visualProfile": {
    "family": "paper-collage",
    "material": "paper",
    "contour": "default",
    "border": "solid",
    "underlay": true,
    "grain": false,
    "stickerBadges": true,
    "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": "Arcade Snack Maximalism 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 saturated colors as indexed structural zones, not airbrushed decoration.",
      "Make every pixel motif carry state, grouping, price, inventory, or navigation meaning.",
      "Keep body copy in Atkinson Hyperlegible and reserve novelty pixel type for labels and counters.",
      "Use square corners, hard shadows, and step motion consistently across components."
    ],
    "dont": [
      "Do not mix rounded SaaS cards with cabinet geometry.",
      "Do not place checkerboards or scanlines over paragraphs where they reduce readability.",
      "Do not use gradients, glassmorphism, blur shadows, or nostalgic props that do not organize the interface.",
      "Do not let all four bright colors compete at the same hierarchy level."
    ]
  }
}