Broadside

# Broadside

## Philosophy

Broadside is a publication-first interface conceived as a reversed broadside: one large printed sheet for the screen, poured down a centre fold and photographed on the press bed under darkroom light. The page is the ink and the type is knocked out of it as reversed paper; a single phosphor-green plate carries the signal while amber registration crosshairs pin the sheet to the bed. Depth is ink coverage and reversal, never elevation or shadow.

### Values

- The fold is the grid: every layout begins at a visible foldline with hairline register rails, and content pours down it rather than floating in cards.
- Reverse, don't float: surfaces are knocked out of solid ink, depth comes from coverage and rule weight, never from drop shadows or offset plates.
- One plate of light: a single phosphor-green ink is reserved for the lead, the live mark, and the primary action; amber marks the register; everything else runs black.
- Set in cold metal: Anton sets stacked condensed mastheads, Spline Mono files the specimen data — big and blunt, then small and exact.

### Anti-Values

- Soft SaaS polish — pills, large radii, glass cards, gradient washes — that erases the sense of printed matter.
- Floating blocks on offset drop-shadow plates; Broadside lies flat on the bed.
- Using the phosphor plate as an ambient background wash or glow instead of reversed light through ink.
- Falling back to a cream or white ground; the reversal out of deep press ink is the identity.

### Visual Character

- A visible foldline flanked by hairline register rails, with amber crosshair registration marks at the corners of major regions.
- Lead blocks are solid phosphor-green fields with reversed dark type (the knockout); secondary content runs reversed paper on deep ink, divided only by hairline rules and the gutter.
- Full-bleed halftone-dot bands break the column to carry pull quotes and manifestos.
- Stacked condensed Anton caps form vertical mastheads (BROAD / SIDE); Spline Sans Mono labels are letter-spaced uppercase like data filed on the bench.
- Square corners throughout with a faint screen-blend halftone grain over the page; the only full-radius element is the pulsing live-status dot.

## Tokens

### Colors

| Name | Value |
|------|-------|
| bg | `#0d0d0d` |
| surface | `#161616` |
| surface_2 | `#1f1f1f` |
| text | `#f4f1e8` |
| muted | `#8d897e` |
| border | `#2a2a28` |
| accent | `#00ff66` |
| accent_2 | `#ffb000` |
| on_accent | `#07120a` |
| success | `#00ff66` |
| warning | `#ffb000` |
| error | `#ff4d4d` |
| info | `#5ad1ff` |

### Typography

- **Base Size**: 17px
- **Body Font**: Oswald
- **Heading Font**: Anton
- **Mono Font**: Spline Sans Mono
- **Heading Weight**: 400
- **Heading Transform**: uppercase
- **Letter Spacing**: -0.01em
- **Line Height**: 1.55
- **Google Fonts Url**: https://fonts.googleapis.com/css2?family=Anton&family=Oswald:wght@300;400;500;600;700&family=Spline+Sans+Mono:wght@400;500;600&display=swap

### Radii

- **None**: 0
- **Sm**: 0
- **Md**: 0
- **Lg**: 0
- **Full**: 9999px

### Shadows

- **Sm**: none
- **Md**: none
- **Lg**: none
- **Philosophy**: No drop shadows. Depth is knockout, reversal, and hairline rule weight — the sheet lies flat on the press bed.

### Spacing

- **Base**: 8px
- **Scale**: [4,8,12,16,24,32,48,64,96]

### Surfaces

- **Treatment**: reversed-ink-knockout
- **Card Style**: Register blocks of #161616 on a deep press-ink ground, separated by hairline rules and the gutter; lead blocks invert to a solid phosphor field with reversed dark type. A faint screen-blend halftone grain sits over the page.
- **Bg Pattern**: halftone-grain

### Borders

- **Default Width**: 1px
- **Accent Width**: 3px
- **Style**: solid
- **Character**: Hairline register rules divide columns; a 3px reversed-paper rule marks bold section breaks. Borders are dividing rules, never coloured accent edges on cards.

### Motion

- **Duration**: 200ms
- **Easing**: cubic-bezier(0.2,0.8,0.2,1)
- **Philosophy**: Snappy and mechanical. The settled state is the default (visible with no JS); an inline script gates a hidden start-state and reveals blocks on scroll. Respects prefers-reduced-motion.

## Rules

### Composition

Compose the page as one reversed broadside poured down a centre fold: a contained column (max 1180px) reading top-to-bottom, anchored by a stacked-caps masthead and a phosphor knockout lead block, with three-up dispatch columns divided by hairline rules and full-bleed halftone bands that break the column for pull quotes. Only the hero and full-bleed bands span 100vw.

### Hierarchy

Hierarchy comes from scale contrast and reversal: Anton headlines are dramatically larger than Oswald body; the lead is knocked out of solid phosphor while everything else is paper on ink; Spline Mono kickers and amber numerals form the intermediate layer; controls and labels stay small, high-contrast, and square.

### Density

Moderately dense and information-rich, with reading rhythm preserved by disciplined spacing bands, hairline dividers, and the gutter. Pad generously above titles.

### Signature

Every major region registers to a visible foldline with amber crosshair marks at its corners. The lead block is a solid phosphor field with reversed dark type (the knockout); full-bleed halftone-dot bands carry manifestos; one phosphor plate of light per view, amber for the register, black for the rest.

## Layout

### Grid

A centred contained column on a fold: desktop reads top-to-bottom with three-up dispatch columns and a dashboard fold-rail sidebar; only the hero and full-bleed bands span 100vw. Tablet stacks dispatch columns to two-up; mobile collapses to a single column with hairline rules turned horizontal.

### Whitespace

Disciplined rather than airy: tight internal padding for mono labels and controls, larger band spacing between editorial modules, generous padding above every title.

### Density

Moderately dense, information-rich, with clear module separation by hairline rule and gutter.

### Responsive

Grids use minmax(0,1fr) + min-width:0 so children shrink instead of overflowing; from ~390px mobile to 2560px+ ultra-wide the contained content caps and centres while only the full-bleed hero and bands span 100vw.

### Breakpoints

- **Desktop**: 1440px and above — masthead, knockout lead, three-up dispatches, full register table.
- **Tablet**: 768px to 1439px — dispatches stack to two columns; dashboard sidebar becomes a horizontal rail.
- **Mobile**: 390px to 767px — single-column fold, headline first, hairline rules horizontal, full-width buttons.

## Guidance

### Do

- Knock the lead out of solid phosphor and reverse paper type through deep ink.
- Pin every major block to the foldline and mark its corners with amber registration crosshairs.
- Set mastheads in stacked Anton caps; file metadata, controls, and wayfinding in Spline Sans Mono.
- Keep one phosphor plate of light per view — lead, live mark, primary action — and let everything else run black.

### Don't

- Do not float blocks on offset or drop-shadow plates; Broadside lies flat on the press bed.
- Do not use the phosphor as a background wash or ambient glow — it is reversed light, not fill.
- Do not soften the system with pill buttons, large radii, glass cards, or grey borders.
- Do not fall back to a cream or white ground; the reversal out of deep press ink is the identity.

### Accessibility

High contrast everywhere: warm reversed paper (#f4f1e8) on deep press ink (#0d0d0d) clears AA at body sizes. The phosphor (#00ff66) and amber (#ffb000) fills carry dark text for AA contrast. Every form control is explicitly styled with a visible 2px phosphor focus ring; icons are SVG/CSS primitives, never glyphs or emoji; motion respects prefers-reduced-motion and the fully-rendered state is visible with no JavaScript.

## Imagery Direction

### Pairs With

overprint

### Summary

Full-frame overprint crops of printed ephemera — folded broadsheets, the press bed, the proofing bench — rendered as high-contrast risograph: dense black halftone linework with one misregistered phosphor-green plate, treated as printed matter, reversed onto a deep-ink ground.

### Subjects

- stacks of folded broadsheets seen edge-on
- the press bed under raking light
- hands at the proofing bench
- rollers and ink cylinders
- taped layout sheets with registration marks
- metal type in the case

### Usage

Hero and full-bleed band imagery are driven by background-image: var(--hero-image) over a dark scrim so type stays legible. Keep the black/phosphor overprint treatment; no text, letters, or logos in the image.

### Engine Hints

- **Model**: gpt-image-2
- **Provider**: openai
- **Tool**: openai-image MCP
- **Size**: 1536x1024
- **Quality**: high

---
version: "alpha"
name: "Broadside"
description: "Agent-curated design language exported from Katagami as DESIGN.md."
colors:
  bg: "#0d0d0d"
  surface: "#161616"
  surface_2: "#1f1f1f"
  text: "#f4f1e8"
  muted: "#8d897e"
  border: "#2a2a28"
  accent: "#00ff66"
  accent_2: "#ffb000"
  on_accent: "#07120a"
  success: "#00ff66"
  warning: "#ffb000"
  error: "#ff4d4d"
  info: "#5ad1ff"
typography:
  headline-lg:
    fontFamily: "Anton"
    fontSize: "2.075rem"
    fontWeight: 700
    lineHeight: 1.1
    letterSpacing: "-0.01em"
  headline-md:
    fontFamily: "Anton"
    fontSize: "1.66rem"
    fontWeight: 600
    lineHeight: 1.15
    letterSpacing: "-0.01em"
  body-md:
    fontFamily: "Oswald"
    fontSize: "17px"
    fontWeight: 400
    lineHeight: 1.55
    letterSpacing: "-0.01em"
  label-md:
    fontFamily: "Spline Sans Mono"
    fontSize: "0.75rem"
    fontWeight: 600
    lineHeight: 1
    letterSpacing: "0.08em"
rounded:
  none: "0px"
  sm: "0px"
  md: "0px"
  lg: "0px"
  full: "9999px"
spacing:
  base: "8px"
  xs: "4px"
  sm: "8px"
  md: "12px"
  lg: "16px"
  xl: "24px"
  2xl: "32px"
  3xl: "48px"
  4xl: "64px"
  step-8: "96px"
components:
  color-reference-bg:
    backgroundColor: "{colors.bg}"
  color-reference-surface:
    backgroundColor: "{colors.surface}"
  color-reference-surface_2:
    backgroundColor: "{colors.surface_2}"
  color-reference-text:
    backgroundColor: "{colors.text}"
  color-reference-muted:
    backgroundColor: "{colors.muted}"
  color-reference-border:
    backgroundColor: "{colors.border}"
  color-reference-accent:
    backgroundColor: "{colors.accent}"
  color-reference-accent_2:
    backgroundColor: "{colors.accent_2}"
  color-reference-on_accent:
    backgroundColor: "{colors.on_accent}"
  color-reference-success:
    backgroundColor: "{colors.success}"
  color-reference-warning:
    backgroundColor: "{colors.warning}"
  color-reference-error:
    backgroundColor: "{colors.error}"
  color-reference-info:
    backgroundColor: "{colors.info}"
  button-primary:
    backgroundColor: "{colors.accent}"
    textColor: "#000000"
    typography: "{typography.label-md}"
    rounded: "{rounded.md}"
    padding: "{spacing.md}"
  card-surface:
    backgroundColor: "{colors.surface}"
    textColor: "{colors.text}"
    rounded: "{rounded.md}"
    padding: "{spacing.md}"
  input-default:
    backgroundColor: "{colors.surface}"
    textColor: "{colors.text}"
    rounded: "{rounded.md}"
    height: "44px"
---

# Broadside

## Overview

Broadside is a publication-first interface conceived as a reversed broadside: one large printed sheet for the screen, poured down a centre fold and photographed on the press bed under darkroom light. The page is the ink and the type is knocked out of it as reversed paper; a single phosphor-green plate carries the signal while amber registration crosshairs pin the sheet to the bed. Depth is ink coverage and reversal, never elevation or shadow.

### Values

- The fold is the grid: every layout begins at a visible foldline with hairline register rails, and content pours down it rather than floating in cards.
- Reverse, don't float: surfaces are knocked out of solid ink, depth comes from coverage and rule weight, never from drop shadows or offset plates.
- One plate of light: a single phosphor-green ink is reserved for the lead, the live mark, and the primary action; amber marks the register; everything else runs black.
- Set in cold metal: Anton sets stacked condensed mastheads, Spline Mono files the specimen data — big and blunt, then small and exact.

### Anti-Values

- Soft SaaS polish — pills, large radii, glass cards, gradient washes — that erases the sense of printed matter.
- Floating blocks on offset drop-shadow plates; Broadside lies flat on the bed.
- Using the phosphor plate as an ambient background wash or glow instead of reversed light through ink.
- Falling back to a cream or white ground; the reversal out of deep press ink is the identity.

### Visual Character

- A visible foldline flanked by hairline register rails, with amber crosshair registration marks at the corners of major regions.
- Lead blocks are solid phosphor-green fields with reversed dark type (the knockout); secondary content runs reversed paper on deep ink, divided only by hairline rules and the gutter.
- Full-bleed halftone-dot bands break the column to carry pull quotes and manifestos.
- Stacked condensed Anton caps form vertical mastheads (BROAD / SIDE); Spline Sans Mono labels are letter-spaced uppercase like data filed on the bench.
- Square corners throughout with a faint screen-blend halftone grain over the page; the only full-radius element is the pulsing live-status dot.

## Colors

Use the YAML color tokens as the normative palette. The prose below names the roles agents should preserve when generating UI.

| Token | Value |
|-------|-------|
| bg | `#0d0d0d` |
| surface | `#161616` |
| surface_2 | `#1f1f1f` |
| text | `#f4f1e8` |
| muted | `#8d897e` |
| border | `#2a2a28` |
| accent | `#00ff66` |
| accent_2 | `#ffb000` |
| on_accent | `#07120a` |
| success | `#00ff66` |
| warning | `#ffb000` |
| error | `#ff4d4d` |
| info | `#5ad1ff` |

## Typography

- **Headline-Lg**: Anton, 2.075rem, weight 700, line-height 1.1.
- **Headline-Md**: Anton, 1.66rem, weight 600, line-height 1.15.
- **Body-Md**: Oswald, 17px, weight 400, line-height 1.55.
- **Label-Md**: Spline Sans Mono, 0.75rem, weight 600, line-height 1.

## Layout

### Spacing Tokens

- **Base**: `8px`
- **Xs**: `4px`
- **Sm**: `8px`
- **Md**: `12px`
- **Lg**: `16px`
- **Xl**: `24px`
- **2xl**: `32px`
- **3xl**: `48px`
- **4xl**: `64px`
- **Step-8**: `96px`

### Grid

A centred contained column on a fold: desktop reads top-to-bottom with three-up dispatch columns and a dashboard fold-rail sidebar; only the hero and full-bleed bands span 100vw. Tablet stacks dispatch columns to two-up; mobile collapses to a single column with hairline rules turned horizontal.

### Whitespace

Disciplined rather than airy: tight internal padding for mono labels and controls, larger band spacing between editorial modules, generous padding above every title.

### Density

Moderately dense, information-rich, with clear module separation by hairline rule and gutter.

### Responsive

Grids use minmax(0,1fr) + min-width:0 so children shrink instead of overflowing; from ~390px mobile to 2560px+ ultra-wide the contained content caps and centres while only the full-bleed hero and bands span 100vw.

### Breakpoints

- **Desktop**: 1440px and above — masthead, knockout lead, three-up dispatches, full register table.
- **Tablet**: 768px to 1439px — dispatches stack to two columns; dashboard sidebar becomes a horizontal rail.
- **Mobile**: 390px to 767px — single-column fold, headline first, hairline rules horizontal, full-width buttons.

## Elevation & Depth

### Shadows

- **Sm**: none
- **Md**: none
- **Lg**: none
- **Philosophy**: No drop shadows. Depth is knockout, reversal, and hairline rule weight — the sheet lies flat on the press bed.

## Shapes

### Rounded

- **None**: `0px`
- **Sm**: `0px`
- **Md**: `0px`
- **Lg**: `0px`
- **Full**: `9999px`

### Surfaces

- **Treatment**: reversed-ink-knockout
- **Card Style**: Register blocks of #161616 on a deep press-ink ground, separated by hairline rules and the gutter; lead blocks invert to a solid phosphor field with reversed dark type. A faint screen-blend halftone grain sits over the page.
- **Bg Pattern**: halftone-grain

### Borders

- **Default Width**: 1px
- **Accent Width**: 3px
- **Style**: solid
- **Character**: Hairline register rules divide columns; a 3px reversed-paper rule marks bold section breaks. Borders are dividing rules, never coloured accent edges on cards.

## Components

### Composition

Compose the page as one reversed broadside poured down a centre fold: a contained column (max 1180px) reading top-to-bottom, anchored by a stacked-caps masthead and a phosphor knockout lead block, with three-up dispatch columns divided by hairline rules and full-bleed halftone bands that break the column for pull quotes. Only the hero and full-bleed bands span 100vw.

### Hierarchy

Hierarchy comes from scale contrast and reversal: Anton headlines are dramatically larger than Oswald body; the lead is knocked out of solid phosphor while everything else is paper on ink; Spline Mono kickers and amber numerals form the intermediate layer; controls and labels stay small, high-contrast, and square.

### Density

Moderately dense and information-rich, with reading rhythm preserved by disciplined spacing bands, hairline dividers, and the gutter. Pad generously above titles.

### Signature

Every major region registers to a visible foldline with amber crosshair marks at its corners. The lead block is a solid phosphor field with reversed dark type (the knockout); full-bleed halftone-dot bands carry manifestos; one phosphor plate of light per view, amber for the register, black for the rest.

## 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-019efa5d-8ce7-7d80-8fd3-c79b24fdca6f/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 Knock the lead out of solid phosphor and reverse paper type through deep ink.
- Do Pin every major block to the foldline and mark its corners with amber registration crosshairs.
- Do Set mastheads in stacked Anton caps; file metadata, controls, and wayfinding in Spline Sans Mono.
- Do Keep one phosphor plate of light per view — lead, live mark, primary action — and let everything else run black.
- Don't Do not float blocks on offset or drop-shadow plates; Broadside lies flat on the press bed.
- Don't Do not use the phosphor as a background wash or ambient glow — it is reversed light, not fill.
- Don't Do not soften the system with pill buttons, large radii, glass cards, or grey borders.
- Don't Do not fall back to a cream or white ground; the reversal out of deep press ink is the identity.

### Accessibility

High contrast everywhere: warm reversed paper (#f4f1e8) on deep press ink (#0d0d0d) clears AA at body sizes. The phosphor (#00ff66) and amber (#ffb000) fills carry dark text for AA contrast. Every form control is explicitly styled with a visible 2px phosphor focus ring; icons are SVG/CSS primitives, never glyphs or emoji; motion respects prefers-reduced-motion and the fully-rendered state is visible with no JavaScript.

## Imagery Direction

### Pairs With

overprint

### Summary

Full-frame overprint crops of printed ephemera — folded broadsheets, the press bed, the proofing bench — rendered as high-contrast risograph: dense black halftone linework with one misregistered phosphor-green plate, treated as printed matter, reversed onto a deep-ink ground.

### Subjects

- stacks of folded broadsheets seen edge-on
- the press bed under raking light
- hands at the proofing bench
- rollers and ink cylinders
- taped layout sheets with registration marks
- metal type in the case

### Usage

Hero and full-bleed band imagery are driven by background-image: var(--hero-image) over a dark scrim so type stays legible. Keep the black/phosphor overprint treatment; no text, letters, or logos in the image.

### Engine Hints

- **Model**: gpt-image-2
- **Provider**: openai
- **Tool**: openai-image MCP
- **Size**: 1536x1024
- **Quality**: high

```json
{
  "$schema": "https://ui.shadcn.com/schema/registry-item.json",
  "name": "broadside",
  "type": "registry:theme",
  "title": "Broadside shadcn Theme",
  "cssVars": {
    "theme": {},
    "light": {
      "background": "#0d0d0d",
      "foreground": "#f4f1e8",
      "card": "#161616",
      "card-foreground": "#f4f1e8",
      "popover": "#161616",
      "popover-foreground": "#f4f1e8",
      "primary": "#f4f1e8",
      "primary-foreground": "#111111",
      "secondary": "#f4f4f5",
      "secondary-foreground": "#111111",
      "muted": "#8d897e",
      "muted-foreground": "#f4f1e8",
      "accent": "#00ff66",
      "accent-foreground": "#111111",
      "destructive": "#ff4d4d",
      "border": "#2a2a28",
      "input": "#2a2a28",
      "ring": "#00ff66",
      "chart-1": "#f4f1e8",
      "chart-2": "#f4f4f5",
      "chart-3": "#00ff66",
      "chart-4": "#00ff66",
      "chart-5": "#ffb000",
      "sidebar": "#161616",
      "sidebar-foreground": "#f4f1e8",
      "sidebar-primary": "#f4f1e8",
      "sidebar-primary-foreground": "#111111",
      "sidebar-accent": "#5ad1ff",
      "sidebar-accent-foreground": "#111111",
      "sidebar-border": "#2a2a28",
      "sidebar-ring": "#00ff66",
      "radius": "0"
    },
    "dark": {
      "background": "#0f1115",
      "foreground": "#f8fafc",
      "card": "#181b22",
      "card-foreground": "#f8fafc",
      "popover": "#181b22",
      "popover-foreground": "#f8fafc",
      "primary": "#f4f1e8",
      "primary-foreground": "#111111",
      "secondary": "#252a33",
      "secondary-foreground": "#f8fafc",
      "muted": "#252a33",
      "muted-foreground": "#a1a1aa",
      "accent": "#00ff66",
      "accent-foreground": "#111111",
      "destructive": "#ff4d4d",
      "border": "#303642",
      "input": "#303642",
      "ring": "#00ff66",
      "chart-1": "#f4f1e8",
      "chart-2": "#f4f4f5",
      "chart-3": "#00ff66",
      "chart-4": "#00ff66",
      "chart-5": "#ffb000",
      "sidebar": "#181b22",
      "sidebar-foreground": "#f8fafc",
      "sidebar-primary": "#f4f1e8",
      "sidebar-primary-foreground": "#111111",
      "sidebar-accent": "#00ff66",
      "sidebar-accent-foreground": "#111111",
      "sidebar-border": "#303642",
      "sidebar-ring": "#00ff66",
      "radius": "0"
    }
  },
  "meta": {
    "source": "katagami",
    "languageId": "en-019efa5d-8ce7-7d80-8fd3-c79b24fdca6f",
    "slug": "broadside",
    "componentManifest": [
      "button",
      "card",
      "input",
      "textarea",
      "select",
      "dialog",
      "sheet",
      "tabs",
      "badge",
      "separator",
      "checkbox",
      "switch",
      "slider",
      "tooltip",
      "dropdown-menu",
      "table"
    ],
    "installCommand": "npx shadcn@latest add button card input textarea select dialog sheet tabs badge separator checkbox switch slider tooltip dropdown-menu table",
    "nativeTokenNames": {
      "colors": [
        "accent",
        "accent_2",
        "bg",
        "border",
        "error",
        "info",
        "muted",
        "on_accent",
        "success",
        "surface",
        "surface_2",
        "text",
        "warning"
      ],
      "typography": [
        "base_size",
        "body_font",
        "google_fonts_url",
        "heading_font",
        "heading_transform",
        "heading_weight",
        "letter_spacing",
        "line_height",
        "mono_font"
      ],
      "radii": [
        "full",
        "lg",
        "md",
        "none",
        "sm"
      ],
      "shadows": [
        "lg",
        "md",
        "philosophy",
        "sm"
      ],
      "spacing": [
        "base",
        "scale"
      ],
      "surfaces": [
        "bg_pattern",
        "card_style",
        "treatment"
      ],
      "borders": [
        "accent_width",
        "character",
        "default_width",
        "style"
      ],
      "motion": [
        "duration",
        "easing",
        "philosophy"
      ]
    }
  }
}
```