Formwork

# Formwork

## Philosophy

Formwork is the neo-brutalist interface taken back to its origin — beton brut, raw cast concrete — rather than to the print shop. The interface is poured into a mold and left there: every surface is a load-bearing structural bay held up by a measured datum line and a dimension bracket, never floated on a drop shadow. The dark, board-marked concrete ground reads like an engineering elevation of a poured wall, dimensioned and reinforced. Depth comes from where the structure lands, not from soft chrome.

### Values

- Structure is measured, never floated — datum lines and dimension brackets carry depth in place of shadows.
- Raw material honesty: a dark board-marked concrete ground, exposed reinforcement, hard formwork corners.
- Instant legibility through a tall condensed display shout over quiet body, with measurements always in mono.
- A settled, fully-rendered page first; motion is a short set-into-place rise added on top, never required to read it.

### Anti-Values

- Soft drop shadows, blur, glass, and gradient polish that hide the construction.
- Lone accent edges and rounded SaaS cards that read as anonymous product chrome.
- Pastel washes or background gradients that drain the raw-concrete ground.
- Warm-paper poster pastiche with pulled plates and rotated stickers.

## Tokens

### Colors

| Name | Value |
|------|-------|
| bg | `#1A1916` |
| surface | `#22211D` |
| surface_2 | `#2B2A25` |
| text | `#EDE8DC` |
| muted | `#938E7F` |
| border | `#3A3832` |
| accent | `#FF5B1F` |
| accent_2 | `#26D6E6` |
| accent_3 | `#E8C547` |
| on_accent | `#1A1916` |
| success | `#4FB477` |
| warning | `#E8C547` |
| error | `#FF5B1F` |
| info | `#26D6E6` |

### Typography

- **Base Size**: 17px
- **Body Font**: Inter
- **Heading Font**: Saira Condensed
- **Mono Font**: Spline Sans Mono
- **Heading Weight**: 800
- **Heading Transform**: uppercase
- **Letter Spacing**: -0.01em
- **Scale Ratio**: 1.28
- **Line Height**: 1.55
- **Google Fonts Url**: https://fonts.googleapis.com/css2?family=Saira+Condensed:wght@500;600;700;800&family=Inter:wght@400;500;600;700&family=Spline+Sans+Mono:wght@400;500;600&display=swap

### Radii

- **None**: 0px
- **Tag**: 9999px

### Shadows

- **None**: none

### Spacing

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

### Surfaces

- **Treatment**: raw cast concrete
- **Card Style**: structural bay: charcoal slab with a 2px top datum rule, cyan end-ticks, a left girder edge and a mono dimension label — no drop shadow
- **Bg Pattern**: board-marked plank ruling

### Borders

- **Default Width**: 2px
- **Accent Width**: 4px
- **Style**: solid
- **Character**: thin neutral form-tie hairlines that hold panels against pressure; colour enters only as datum ticks or full ink slabs, never as a lone highlight edge

### Motion

- **Duration**: 200ms
- **Easing**: cubic-bezier(0.22,0.61,0.36,1)
- **Philosophy**: set-into-place — surfaces rise onto their datum; settled state renders with no JS

## Rules

### Composition

A measured structural frame: a full-viewport misprint hero, then columns of load-bearing bays bound by a dashed rebar spine. Surfaces never nest; navigation breathes as part of the page, never boxed in a pill.

### Hierarchy

Order comes from scale (tall condensed display), then the datum/dimension system, then site-colour ink. The primary action takes the dominant safety-orange slab; supporting surfaces stay on the charcoal slab with mono labels.

### Density

Substantial but legible — many real bays and dense data, each framed by its own datum rule so it reads as a measured panel rather than a crowd.

### Signature

Every surface is a measured structural bay: a 2px top datum rule with cyan end-ticks and a monospace dimension/role label, a left girder edge, columns bound by a dashed orange rebar spine. There are no drop shadows — depth is structural. Metrics carry a measure bracket (end-ticks tinted to role); the board-marked concrete ground is the through-line material.

## Layout

### Grid

Desktop runs a structural frame of bays — broad hero, then 2-3 up bay columns and a sidebar dashboard; tablet collapses toward two-up; mobile stacks to one column.

### Whitespace

8px gaps between adjacent bays, generous 48-84px section rhythm, always padding above titles so the condensed shout breathes.

### Density

Substantial — many real bays, never a thin gallery.

### Responsive

Renders ~390px to 2560px+. Mobile stacks single-column, hides non-essential nav links and table columns, never overflows; grids use minmax(0,1fr) + min-width:0. Ultra-wide caps and centres the contained column; only the full-bleed hero spans 100vw.

### Breakpoints

- **Mobile**: 0-599px
- **Tablet**: 600-899px
- **Desktop**: 900-1439px
- **Wide**: 1440px+

## Guidance

### Do

- Frame every surface with a top datum rule, cyan end-ticks, and a monospace dimension or role label.
- Keep one site colour dominant per region and let the others annotate.
- Use the dashed orange rebar spine to bind a column of related bays.
- Pair the tall condensed display shout with quiet Inter body so it stays readable.

### Don't

- Do not add drop shadows, blur, or glass; depth is structural, carried by lines and load.
- Do not give a card a single lone accent edge; colour belongs to the measure system.
- Do not round surfaces into SaaS cards; hard formwork corners are the point.
- Do not wash the ground with pastel or gradients; it stays raw concrete.

### Accessibility

Body text 17px+, table rows 14.5px+. High contrast: warm off-white on charcoal, dark ink only over the bright site-colour slabs. Settled state renders with no JavaScript; motion is gated and respects prefers-reduced-motion. Every form control is explicitly styled with no browser defaults; no emoji or symbol glyphs in copy, markup, or alt text.

## Imagery Direction

### Pairs With

misprint

### Summary

Misprint screenprint imagery applied to raw structure: poured concrete, formwork panels, exposed steel rebar, girders and ties — heavy black keylines, misregistered acid separations, coarse halftone, warm paper ground showing through, hard zero-blur offset shadows in the image itself. One site colour dominant per image.

### Subjects

- poured concrete and formwork panels
- exposed steel rebar and girders
- form-ties and rigging
- construction site structures
- raw structural cross-sections

### Usage

Use as the full-bleed landing hero behind a left structural ink wash, and as feature/empty-state spots. Generate via the Misprint art style; keep one colour dominant and push the plate misregistration explicitly.

---
version: "alpha"
name: "Formwork"
description: "Agent-curated design language exported from Katagami as DESIGN.md."
colors:
  bg: "#1A1916"
  surface: "#22211D"
  surface_2: "#2B2A25"
  text: "#EDE8DC"
  muted: "#938E7F"
  border: "#3A3832"
  accent: "#FF5B1F"
  accent_2: "#26D6E6"
  accent_3: "#E8C547"
  on_accent: "#1A1916"
  success: "#4FB477"
  warning: "#E8C547"
  error: "#FF5B1F"
  info: "#26D6E6"
typography:
  headline-lg:
    fontFamily: "Saira Condensed"
    fontSize: "2.228rem"
    fontWeight: 700
    lineHeight: 1.1
    letterSpacing: "-0.01em"
  headline-md:
    fontFamily: "Saira Condensed"
    fontSize: "1.741rem"
    fontWeight: 600
    lineHeight: 1.15
    letterSpacing: "-0.01em"
  body-md:
    fontFamily: "Inter"
    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"
  tag: "9999px"
spacing:
  base: "8px"
  xs: "4px"
  sm: "8px"
  md: "12px"
  lg: "16px"
  xl: "24px"
  2xl: "32px"
  3xl: "48px"
  4xl: "64px"
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-accent_3:
    backgroundColor: "{colors.accent_3}"
  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.none}"
    padding: "{spacing.md}"
  card-surface:
    backgroundColor: "{colors.surface}"
    textColor: "{colors.text}"
    rounded: "{rounded.none}"
    padding: "{spacing.md}"
  input-default:
    backgroundColor: "{colors.surface}"
    textColor: "{colors.text}"
    rounded: "{rounded.none}"
    height: "44px"
---

# Formwork

## Overview

Formwork is the neo-brutalist interface taken back to its origin — beton brut, raw cast concrete — rather than to the print shop. The interface is poured into a mold and left there: every surface is a load-bearing structural bay held up by a measured datum line and a dimension bracket, never floated on a drop shadow. The dark, board-marked concrete ground reads like an engineering elevation of a poured wall, dimensioned and reinforced. Depth comes from where the structure lands, not from soft chrome.

### Values

- Structure is measured, never floated — datum lines and dimension brackets carry depth in place of shadows.
- Raw material honesty: a dark board-marked concrete ground, exposed reinforcement, hard formwork corners.
- Instant legibility through a tall condensed display shout over quiet body, with measurements always in mono.
- A settled, fully-rendered page first; motion is a short set-into-place rise added on top, never required to read it.

### Anti-Values

- Soft drop shadows, blur, glass, and gradient polish that hide the construction.
- Lone accent edges and rounded SaaS cards that read as anonymous product chrome.
- Pastel washes or background gradients that drain the raw-concrete ground.
- Warm-paper poster pastiche with pulled plates and rotated stickers.

## 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 | `#1A1916` |
| surface | `#22211D` |
| surface_2 | `#2B2A25` |
| text | `#EDE8DC` |
| muted | `#938E7F` |
| border | `#3A3832` |
| accent | `#FF5B1F` |
| accent_2 | `#26D6E6` |
| accent_3 | `#E8C547` |
| on_accent | `#1A1916` |
| success | `#4FB477` |
| warning | `#E8C547` |
| error | `#FF5B1F` |
| info | `#26D6E6` |

## Typography

- **Headline-Lg**: Saira Condensed, 2.228rem, weight 700, line-height 1.1.
- **Headline-Md**: Saira Condensed, 1.741rem, weight 600, line-height 1.15.
- **Body-Md**: Inter, 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`

### Grid

Desktop runs a structural frame of bays — broad hero, then 2-3 up bay columns and a sidebar dashboard; tablet collapses toward two-up; mobile stacks to one column.

### Whitespace

8px gaps between adjacent bays, generous 48-84px section rhythm, always padding above titles so the condensed shout breathes.

### Density

Substantial — many real bays, never a thin gallery.

### Responsive

Renders ~390px to 2560px+. Mobile stacks single-column, hides non-essential nav links and table columns, never overflows; grids use minmax(0,1fr) + min-width:0. Ultra-wide caps and centres the contained column; only the full-bleed hero spans 100vw.

### Breakpoints

- **Mobile**: 0-599px
- **Tablet**: 600-899px
- **Desktop**: 900-1439px
- **Wide**: 1440px+

## Elevation & Depth

### Shadows

- **None**: none

## Shapes

### Rounded

- **None**: `0px`
- **Tag**: `9999px`

### Surfaces

- **Treatment**: raw cast concrete
- **Card Style**: structural bay: charcoal slab with a 2px top datum rule, cyan end-ticks, a left girder edge and a mono dimension label — no drop shadow
- **Bg Pattern**: board-marked plank ruling

### Borders

- **Default Width**: 2px
- **Accent Width**: 4px
- **Style**: solid
- **Character**: thin neutral form-tie hairlines that hold panels against pressure; colour enters only as datum ticks or full ink slabs, never as a lone highlight edge

## Components

### Composition

A measured structural frame: a full-viewport misprint hero, then columns of load-bearing bays bound by a dashed rebar spine. Surfaces never nest; navigation breathes as part of the page, never boxed in a pill.

### Hierarchy

Order comes from scale (tall condensed display), then the datum/dimension system, then site-colour ink. The primary action takes the dominant safety-orange slab; supporting surfaces stay on the charcoal slab with mono labels.

### Density

Substantial but legible — many real bays and dense data, each framed by its own datum rule so it reads as a measured panel rather than a crowd.

### Signature

Every surface is a measured structural bay: a 2px top datum rule with cyan end-ticks and a monospace dimension/role label, a left girder edge, columns bound by a dashed orange rebar spine. There are no drop shadows — depth is structural. Metrics carry a measure bracket (end-ticks tinted to role); the board-marked concrete ground is the through-line material.

## 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-019efa5e-178c-7fb1-934f-89c8afff531f/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 Frame every surface with a top datum rule, cyan end-ticks, and a monospace dimension or role label.
- Do Keep one site colour dominant per region and let the others annotate.
- Do Use the dashed orange rebar spine to bind a column of related bays.
- Do Pair the tall condensed display shout with quiet Inter body so it stays readable.
- Don't Do not add drop shadows, blur, or glass; depth is structural, carried by lines and load.
- Don't Do not give a card a single lone accent edge; colour belongs to the measure system.
- Don't Do not round surfaces into SaaS cards; hard formwork corners are the point.
- Don't Do not wash the ground with pastel or gradients; it stays raw concrete.

### Accessibility

Body text 17px+, table rows 14.5px+. High contrast: warm off-white on charcoal, dark ink only over the bright site-colour slabs. Settled state renders with no JavaScript; motion is gated and respects prefers-reduced-motion. Every form control is explicitly styled with no browser defaults; no emoji or symbol glyphs in copy, markup, or alt text.

## Imagery Direction

### Pairs With

misprint

### Summary

Misprint screenprint imagery applied to raw structure: poured concrete, formwork panels, exposed steel rebar, girders and ties — heavy black keylines, misregistered acid separations, coarse halftone, warm paper ground showing through, hard zero-blur offset shadows in the image itself. One site colour dominant per image.

### Subjects

- poured concrete and formwork panels
- exposed steel rebar and girders
- form-ties and rigging
- construction site structures
- raw structural cross-sections

### Usage

Use as the full-bleed landing hero behind a left structural ink wash, and as feature/empty-state spots. Generate via the Misprint art style; keep one colour dominant and push the plate misregistration explicitly.

```json
{
  "$schema": "https://ui.shadcn.com/schema/registry-item.json",
  "name": "formwork",
  "type": "registry:theme",
  "title": "Formwork shadcn Theme",
  "cssVars": {
    "theme": {},
    "light": {
      "background": "#1A1916",
      "foreground": "#EDE8DC",
      "card": "#22211D",
      "card-foreground": "#EDE8DC",
      "popover": "#22211D",
      "popover-foreground": "#EDE8DC",
      "primary": "#EDE8DC",
      "primary-foreground": "#111111",
      "secondary": "#f4f4f5",
      "secondary-foreground": "#111111",
      "muted": "#938E7F",
      "muted-foreground": "#EDE8DC",
      "accent": "#FF5B1F",
      "accent-foreground": "#ffffff",
      "destructive": "#FF5B1F",
      "border": "#3A3832",
      "input": "#3A3832",
      "ring": "#FF5B1F",
      "chart-1": "#EDE8DC",
      "chart-2": "#f4f4f5",
      "chart-3": "#FF5B1F",
      "chart-4": "#4FB477",
      "chart-5": "#E8C547",
      "sidebar": "#22211D",
      "sidebar-foreground": "#EDE8DC",
      "sidebar-primary": "#EDE8DC",
      "sidebar-primary-foreground": "#111111",
      "sidebar-accent": "#26D6E6",
      "sidebar-accent-foreground": "#111111",
      "sidebar-border": "#3A3832",
      "sidebar-ring": "#FF5B1F",
      "radius": "0.625rem"
    },
    "dark": {
      "background": "#0f1115",
      "foreground": "#f8fafc",
      "card": "#181b22",
      "card-foreground": "#f8fafc",
      "popover": "#181b22",
      "popover-foreground": "#f8fafc",
      "primary": "#EDE8DC",
      "primary-foreground": "#111111",
      "secondary": "#252a33",
      "secondary-foreground": "#f8fafc",
      "muted": "#252a33",
      "muted-foreground": "#a1a1aa",
      "accent": "#FF5B1F",
      "accent-foreground": "#ffffff",
      "destructive": "#FF5B1F",
      "border": "#303642",
      "input": "#303642",
      "ring": "#FF5B1F",
      "chart-1": "#EDE8DC",
      "chart-2": "#f4f4f5",
      "chart-3": "#FF5B1F",
      "chart-4": "#4FB477",
      "chart-5": "#E8C547",
      "sidebar": "#181b22",
      "sidebar-foreground": "#f8fafc",
      "sidebar-primary": "#EDE8DC",
      "sidebar-primary-foreground": "#111111",
      "sidebar-accent": "#FF5B1F",
      "sidebar-accent-foreground": "#ffffff",
      "sidebar-border": "#303642",
      "sidebar-ring": "#FF5B1F",
      "radius": "0.625rem"
    }
  },
  "meta": {
    "source": "katagami",
    "languageId": "en-019efa5e-178c-7fb1-934f-89c8afff531f",
    "slug": "formwork",
    "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",
        "accent_3",
        "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",
        "scale_ratio"
      ],
      "radii": [
        "none",
        "tag"
      ],
      "shadows": [
        "none"
      ],
      "spacing": [
        "base",
        "scale"
      ],
      "surfaces": [
        "bg_pattern",
        "card_style",
        "treatment"
      ],
      "borders": [
        "accent_width",
        "character",
        "default_width",
        "style"
      ],
      "motion": [
        "duration",
        "easing",
        "philosophy"
      ]
    }
  }
}
```