Kōka

# Kōka

## Philosophy

Kōka runs your services like an elevated railway over the night city. Every process is a stop on the line, every release a departure, every fault a held signal. You read the system top to bottom the way you watch a train approach a platform — one moving line with stations on it, not a wall of equal dashboard tiles. Deep viaduct-night ink, lit by signage and signal lamps, with a single loud signal-amber mark reserved for whatever is live.

### Values

- the line is the model: a continuous route-spine with station nodes whose state is the status
- one loud mark — signal amber only on what is live or departing, never decorative fill
- timetable legibility: times, piers and status read like a split-flap departure board
- night-ink calm punctuated by signal lamps; restraint over neon clutter
- colour always paired with a label so it never carries meaning alone
- youthful velocity from the moving line and dense terminal rhythm, balanced by open night fields

### Anti-Values

- manga-panel collage chassis with chrome rails, battery chips and barcode sticker clusters
- warm-paper grounds and condensed all-caps display mastheads
- neon cyberpunk gradients, glassmorphism, or a multi-accent rainbow
- equal SaaS tiles, soft pastel status palettes, and default rounded everything

### Visual Character

- A continuous vertical route-line spine threads the interface; station nodes along it read status by fill — amber ringed = departing now, hollow teal = transfer, dim steel = holding or queued.
- A split-flap departure board re-sorts the same line as a timetable: split-flap time tabs, destination, pier, and a labelled status pill.
- On the dashboard the left nav rail IS the line — menu items are stations on a steel spine; on the landing the route-line becomes the amber headline rule.
- Typography pairs heavy mixed-case Archivo headings with Spline Sans body and Spline Sans Mono for every time, pier, route tag and status — the timetable voice.

## Tokens

### Colors

| Name | Value |
|------|-------|
| bg | `#0E1418` |
| bg_2 | `#11191E` |
| surface | `#16212A` |
| surface_2 | `#1E2B35` |
| text | `#EAF1F4` |
| muted | `#9DB1BD` |
| faint | `#6C8190` |
| border | `#2C3B45` |
| line | `#3A4C58` |
| line_dim | `#26343D` |
| accent | `#F2A33C` |
| accent_ink | `#2A1A06` |
| on_accent | `#1A1208` |
| teal | `#4FB6B0` |
| teal_ink | `#06201E` |
| success | `#7FC06A` |
| warning | `#F2A33C` |
| error | `#E2614C` |
| info | `#4FB6B0` |

### Typography

- **Base Size**: 17px
- **Body Font**: Spline Sans
- **Heading Font**: Archivo
- **Mono Font**: Spline Sans Mono
- **Heading Weight**: 800
- **Heading Transform**: none
- **Letter Spacing**: -0.02em
- **Line Height**: 1.55
- **Scale Ratio**: 1.25
- **Google Fonts Url**: https://fonts.googleapis.com/css2?family=Archivo:wght@500;600;700;800;900&family=Spline+Sans:wght@400;500;600;700&family=Spline+Sans+Mono:wght@400;500;600&display=swap

### Radii

- **None**: 0px
- **Sm**: 0px
- **Md**: 16px
- **Lg**: 24px
- **Full**: 9999px

### Shadows

- **Sm**: none
- **Md**: none
- **Lg**: none
- **Glow Amber**: 0 0 0 5px rgba(242,163,60,0.16)
- **Glow Teal**: 0 0 0 5px rgba(79,182,176,0.16)

### Spacing

- **Base**: 8px
- **Scale**: [4,8,12,16,24,32,48,64,96,128]

### Surfaces

- **Bg Pattern**: Faint diagonal halftone night wash from a radial dot grid under 12% opacity; the ground reads as the platform at 2am.
- **Card Style**: Flat night-ink surfaces (#16212A) at 16/24px radius, no borders, no shadow; separation comes from surface tone, the route-line, and faint paper hairlines rgba(176,200,214,0.10).
- **Treatment**: Deep viaduct-night ground lit by signage and signal lamps; the route-line spine and station nodes carry hierarchy, signal-amber reserved for live state.

### Borders

- **Default Width**: 2px
- **Accent Width**: 4px
- **Style**: solid
- **Character**: No decorative borders. 2px input rules only; route-line is a 4px steel rail; dividers are hairline rgba(176,200,214,0.10).

### Motion

- **Duration**: 180ms
- **Easing**: cubic-bezier(.2,.8,.2,1)
- **Philosophy**: Motion is a departure: reveals slide up and settle once like a train arriving, never looping parallax. The settled state renders fully with no JavaScript behind a gating class; respects prefers-reduced-motion.

## Rules

### Composition

Hang every section off the route-line spine: a continuous vertical rail with station nodes. One spine, station nodes for items, a split-flap departure board for the timetable rhythm, and the signal cabin for controls. Never a grid of equal tiles; the line is the layout, not an overlay.

### Hierarchy

Hierarchy comes from heavy mixed-case Archivo headings, then the route-line and its station nodes, then mono timetable text. Signal amber marks only what is live or departing; viaduct teal marks transfers and info. Colour is always paired with a label.

### Density

Pair dense terminal rows (times, piers, status) against open night fields so the system feels energetic but calm. Energy localises to the live amber node and the board; the rest stays quiet ink.

### Signature

- The route-line spine is a continuous vertical rail (steel) with absolutely-positioned station nodes; node fill maps to semantic role (amber live, teal transfer, steel idle) so it recolours on palette swap.
- The split-flap departure board re-sorts the line as a timetable with split-flap time tabs (dark chip), destination, pier, and a labelled status pill.
- On the dashboard the left nav rail is built as the line — nav items are station nodes on a spine; the active item is an amber node.
- Signal lamps are glow-ringed status dots always paired with a text label; the landing headline carries the route-line as an amber vertical rule.

## Layout

### Grid

Contained content caps at 1280px and centres. Embodiment and landing hang sections off a 54-64px spine column + content column. Dashboard is a 240px line-rail + fluid main. Grids use minmax(0,1fr) and min-width:0 children so they never blow out.

### Whitespace

Generous night fields around the hero and between stops; titles always padded from container tops; do not fill the calm ground with extra metrics.

### Density

Tight mono timetable rows balanced against open paper-night pauses; visual energy localises to the live node and the departure board.

### Responsive

390px mobile stacks to a single column, hides non-essential nav links and table columns, never overflows horizontally; the route-line narrows. Only the full-bleed hero spans 100vw; ultra-wide caps and centres contained content.

### Breakpoints

- **Mobile**: < 760px single column, nav links hidden, route-line narrowed to 40-44px
- **Tablet**: 760-1024px contained two-column line + content
- **Desktop**: >= 1024px full route-line layouts
- **Ultrawide**: >= 1600px caps and centres contained content; only the hero spans 100vw

## Guidance

### Do

- Make the route-line spine and its station nodes the backbone of every layout.
- Reserve signal amber for live/departing state and the single primary action.
- Use Spline Sans Mono for every time, pier, route tag and status pill.
- Pair every colour status with a text label and a node or shape.
- Keep the ground deep viaduct-night ink; let open night fields breathe.
- Render the settled state with no JavaScript; add motion as a single settle-on-arrival reveal.

### Don't

- Do not rebuild this as manga panels, chrome console rails, battery chips, or barcode sticker clusters.
- Do not switch to a warm-paper ground or a condensed all-caps display masthead.
- Do not add neon gradients, glassmorphism, soft shadows, or a third loud accent.
- Do not give a card a single accent edge or nest cards; never box the top nav in a pill bar.
- Do not put essential information only in tiny mono microcopy.

### Accessibility

Maintain WCAG AA contrast of light text on night ink and on amber/teal fills (amber uses dark ink text). Every status pairs colour with a label and shape; focus states use a visible amber ring; never set mono microcopy below 12px.

## Imagery Direction

### Pairs With

screentone-press

### Summary

Screentone-press night plates of the elevated railway over the city: viaducts, commuter trains, lantern-lit alleys, signal gantries — pure black manga ink and dense halftone on warm paper read against the dark UI, one small acid-lime hand mark.

### Subjects

- elevated railway viaduct at night
- commuter train crossing overhead
- lantern-lit alley under the tracks
- signal gantry and overhead wires
- station platform at 2am

### Usage

One full-bleed screentone hero per landing, composed with a strong diagonal of the elevated track; a dark overlay keeps the headline legible. Heroes are swapped via --hero-image.

---
version: "alpha"
name: "Kōka"
description: "Agent-curated design language exported from Katagami as DESIGN.md."
colors:
  bg: "#0E1418"
  bg_2: "#11191E"
  surface: "#16212A"
  surface_2: "#1E2B35"
  text: "#EAF1F4"
  muted: "#9DB1BD"
  faint: "#6C8190"
  border: "#2C3B45"
  line: "#3A4C58"
  line_dim: "#26343D"
  accent: "#F2A33C"
  accent_ink: "#2A1A06"
  on_accent: "#1A1208"
  teal: "#4FB6B0"
  teal_ink: "#06201E"
  success: "#7FC06A"
  warning: "#F2A33C"
  error: "#E2614C"
  info: "#4FB6B0"
typography:
  headline-lg:
    fontFamily: "Archivo"
    fontSize: "2.075rem"
    fontWeight: 700
    lineHeight: 1.1
    letterSpacing: "-0.02em"
  headline-md:
    fontFamily: "Archivo"
    fontSize: "1.66rem"
    fontWeight: 600
    lineHeight: 1.15
    letterSpacing: "-0.02em"
  body-md:
    fontFamily: "Spline Sans"
    fontSize: "17px"
    fontWeight: 400
    lineHeight: 1.55
    letterSpacing: "-0.02em"
  label-md:
    fontFamily: "Spline Sans Mono"
    fontSize: "0.75rem"
    fontWeight: 600
    lineHeight: 1
    letterSpacing: "0.08em"
rounded:
  none: "0px"
  sm: "0px"
  md: "16px"
  lg: "24px"
  full: "9999px"
spacing:
  base: "8px"
  xs: "4px"
  sm: "8px"
  md: "12px"
  lg: "16px"
  xl: "24px"
  2xl: "32px"
  3xl: "48px"
  4xl: "64px"
  step-8: "96px"
  step-9: "128px"
components:
  color-reference-bg:
    backgroundColor: "{colors.bg}"
  color-reference-bg_2:
    backgroundColor: "{colors.bg_2}"
  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-faint:
    backgroundColor: "{colors.faint}"
  color-reference-border:
    backgroundColor: "{colors.border}"
  color-reference-line:
    backgroundColor: "{colors.line}"
  color-reference-line_dim:
    backgroundColor: "{colors.line_dim}"
  color-reference-accent:
    backgroundColor: "{colors.accent}"
  color-reference-accent_ink:
    backgroundColor: "{colors.accent_ink}"
  color-reference-on_accent:
    backgroundColor: "{colors.on_accent}"
  color-reference-teal:
    backgroundColor: "{colors.teal}"
  color-reference-teal_ink:
    backgroundColor: "{colors.teal_ink}"
  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"
---

# Kōka

## Overview

Kōka runs your services like an elevated railway over the night city. Every process is a stop on the line, every release a departure, every fault a held signal. You read the system top to bottom the way you watch a train approach a platform — one moving line with stations on it, not a wall of equal dashboard tiles. Deep viaduct-night ink, lit by signage and signal lamps, with a single loud signal-amber mark reserved for whatever is live.

### Values

- the line is the model: a continuous route-spine with station nodes whose state is the status
- one loud mark — signal amber only on what is live or departing, never decorative fill
- timetable legibility: times, piers and status read like a split-flap departure board
- night-ink calm punctuated by signal lamps; restraint over neon clutter
- colour always paired with a label so it never carries meaning alone
- youthful velocity from the moving line and dense terminal rhythm, balanced by open night fields

### Anti-Values

- manga-panel collage chassis with chrome rails, battery chips and barcode sticker clusters
- warm-paper grounds and condensed all-caps display mastheads
- neon cyberpunk gradients, glassmorphism, or a multi-accent rainbow
- equal SaaS tiles, soft pastel status palettes, and default rounded everything

### Visual Character

- A continuous vertical route-line spine threads the interface; station nodes along it read status by fill — amber ringed = departing now, hollow teal = transfer, dim steel = holding or queued.
- A split-flap departure board re-sorts the same line as a timetable: split-flap time tabs, destination, pier, and a labelled status pill.
- On the dashboard the left nav rail IS the line — menu items are stations on a steel spine; on the landing the route-line becomes the amber headline rule.
- Typography pairs heavy mixed-case Archivo headings with Spline Sans body and Spline Sans Mono for every time, pier, route tag and status — the timetable voice.

## 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 | `#0E1418` |
| bg_2 | `#11191E` |
| surface | `#16212A` |
| surface_2 | `#1E2B35` |
| text | `#EAF1F4` |
| muted | `#9DB1BD` |
| faint | `#6C8190` |
| border | `#2C3B45` |
| line | `#3A4C58` |
| line_dim | `#26343D` |
| accent | `#F2A33C` |
| accent_ink | `#2A1A06` |
| on_accent | `#1A1208` |
| teal | `#4FB6B0` |
| teal_ink | `#06201E` |
| success | `#7FC06A` |
| warning | `#F2A33C` |
| error | `#E2614C` |
| info | `#4FB6B0` |

## Typography

- **Headline-Lg**: Archivo, 2.075rem, weight 700, line-height 1.1.
- **Headline-Md**: Archivo, 1.66rem, weight 600, line-height 1.15.
- **Body-Md**: Spline Sans, 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`
- **Step-9**: `128px`

### Grid

Contained content caps at 1280px and centres. Embodiment and landing hang sections off a 54-64px spine column + content column. Dashboard is a 240px line-rail + fluid main. Grids use minmax(0,1fr) and min-width:0 children so they never blow out.

### Whitespace

Generous night fields around the hero and between stops; titles always padded from container tops; do not fill the calm ground with extra metrics.

### Density

Tight mono timetable rows balanced against open paper-night pauses; visual energy localises to the live node and the departure board.

### Responsive

390px mobile stacks to a single column, hides non-essential nav links and table columns, never overflows horizontally; the route-line narrows. Only the full-bleed hero spans 100vw; ultra-wide caps and centres contained content.

### Breakpoints

- **Mobile**: < 760px single column, nav links hidden, route-line narrowed to 40-44px
- **Tablet**: 760-1024px contained two-column line + content
- **Desktop**: >= 1024px full route-line layouts
- **Ultrawide**: >= 1600px caps and centres contained content; only the hero spans 100vw

## Elevation & Depth

### Shadows

- **Sm**: none
- **Md**: none
- **Lg**: none
- **Glow Amber**: 0 0 0 5px rgba(242,163,60,0.16)
- **Glow Teal**: 0 0 0 5px rgba(79,182,176,0.16)

## Shapes

### Rounded

- **None**: `0px`
- **Sm**: `0px`
- **Md**: `16px`
- **Lg**: `24px`
- **Full**: `9999px`

### Surfaces

- **Bg Pattern**: Faint diagonal halftone night wash from a radial dot grid under 12% opacity; the ground reads as the platform at 2am.
- **Card Style**: Flat night-ink surfaces (#16212A) at 16/24px radius, no borders, no shadow; separation comes from surface tone, the route-line, and faint paper hairlines rgba(176,200,214,0.10).
- **Treatment**: Deep viaduct-night ground lit by signage and signal lamps; the route-line spine and station nodes carry hierarchy, signal-amber reserved for live state.

### Borders

- **Default Width**: 2px
- **Accent Width**: 4px
- **Style**: solid
- **Character**: No decorative borders. 2px input rules only; route-line is a 4px steel rail; dividers are hairline rgba(176,200,214,0.10).

## Components

### Composition

Hang every section off the route-line spine: a continuous vertical rail with station nodes. One spine, station nodes for items, a split-flap departure board for the timetable rhythm, and the signal cabin for controls. Never a grid of equal tiles; the line is the layout, not an overlay.

### Hierarchy

Hierarchy comes from heavy mixed-case Archivo headings, then the route-line and its station nodes, then mono timetable text. Signal amber marks only what is live or departing; viaduct teal marks transfers and info. Colour is always paired with a label.

### Density

Pair dense terminal rows (times, piers, status) against open night fields so the system feels energetic but calm. Energy localises to the live amber node and the board; the rest stays quiet ink.

### Signature

- The route-line spine is a continuous vertical rail (steel) with absolutely-positioned station nodes; node fill maps to semantic role (amber live, teal transfer, steel idle) so it recolours on palette swap.
- The split-flap departure board re-sorts the line as a timetable with split-flap time tabs (dark chip), destination, pier, and a labelled status pill.
- On the dashboard the left nav rail is built as the line — nav items are station nodes on a spine; the active item is an amber node.
- Signal lamps are glow-ringed status dots always paired with a text label; the landing headline carries the route-line as an amber vertical rule.

## 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-019ef830-9e12-72e2-a541-4884c781c3fb/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 Make the route-line spine and its station nodes the backbone of every layout.
- Do Reserve signal amber for live/departing state and the single primary action.
- Do Use Spline Sans Mono for every time, pier, route tag and status pill.
- Do Pair every colour status with a text label and a node or shape.
- Do Keep the ground deep viaduct-night ink; let open night fields breathe.
- Do Render the settled state with no JavaScript; add motion as a single settle-on-arrival reveal.
- Don't Do not rebuild this as manga panels, chrome console rails, battery chips, or barcode sticker clusters.
- Don't Do not switch to a warm-paper ground or a condensed all-caps display masthead.
- Don't Do not add neon gradients, glassmorphism, soft shadows, or a third loud accent.
- Don't Do not give a card a single accent edge or nest cards; never box the top nav in a pill bar.
- Don't Do not put essential information only in tiny mono microcopy.

### Accessibility

Maintain WCAG AA contrast of light text on night ink and on amber/teal fills (amber uses dark ink text). Every status pairs colour with a label and shape; focus states use a visible amber ring; never set mono microcopy below 12px.

## Imagery Direction

### Pairs With

screentone-press

### Summary

Screentone-press night plates of the elevated railway over the city: viaducts, commuter trains, lantern-lit alleys, signal gantries — pure black manga ink and dense halftone on warm paper read against the dark UI, one small acid-lime hand mark.

### Subjects

- elevated railway viaduct at night
- commuter train crossing overhead
- lantern-lit alley under the tracks
- signal gantry and overhead wires
- station platform at 2am

### Usage

One full-bleed screentone hero per landing, composed with a strong diagonal of the elevated track; a dark overlay keeps the headline legible. Heroes are swapped via --hero-image.

```json
{
  "$schema": "https://ui.shadcn.com/schema/registry-item.json",
  "name": "koka",
  "type": "registry:theme",
  "title": "Kōka shadcn Theme",
  "cssVars": {
    "theme": {},
    "light": {
      "background": "#0E1418",
      "foreground": "#EAF1F4",
      "card": "#16212A",
      "card-foreground": "#EAF1F4",
      "popover": "#16212A",
      "popover-foreground": "#EAF1F4",
      "primary": "#EAF1F4",
      "primary-foreground": "#111111",
      "secondary": "#f4f4f5",
      "secondary-foreground": "#111111",
      "muted": "#9DB1BD",
      "muted-foreground": "#EAF1F4",
      "accent": "#F2A33C",
      "accent-foreground": "#ffffff",
      "destructive": "#E2614C",
      "border": "#2C3B45",
      "input": "#2C3B45",
      "ring": "#F2A33C",
      "chart-1": "#EAF1F4",
      "chart-2": "#f4f4f5",
      "chart-3": "#F2A33C",
      "chart-4": "#7FC06A",
      "chart-5": "#F2A33C",
      "sidebar": "#16212A",
      "sidebar-foreground": "#EAF1F4",
      "sidebar-primary": "#EAF1F4",
      "sidebar-primary-foreground": "#111111",
      "sidebar-accent": "#4FB6B0",
      "sidebar-accent-foreground": "#ffffff",
      "sidebar-border": "#2C3B45",
      "sidebar-ring": "#F2A33C",
      "radius": "16px"
    },
    "dark": {
      "background": "#0f1115",
      "foreground": "#f8fafc",
      "card": "#181b22",
      "card-foreground": "#f8fafc",
      "popover": "#181b22",
      "popover-foreground": "#f8fafc",
      "primary": "#EAF1F4",
      "primary-foreground": "#111111",
      "secondary": "#252a33",
      "secondary-foreground": "#f8fafc",
      "muted": "#252a33",
      "muted-foreground": "#a1a1aa",
      "accent": "#F2A33C",
      "accent-foreground": "#ffffff",
      "destructive": "#E2614C",
      "border": "#303642",
      "input": "#303642",
      "ring": "#F2A33C",
      "chart-1": "#EAF1F4",
      "chart-2": "#f4f4f5",
      "chart-3": "#F2A33C",
      "chart-4": "#7FC06A",
      "chart-5": "#F2A33C",
      "sidebar": "#181b22",
      "sidebar-foreground": "#f8fafc",
      "sidebar-primary": "#EAF1F4",
      "sidebar-primary-foreground": "#111111",
      "sidebar-accent": "#F2A33C",
      "sidebar-accent-foreground": "#ffffff",
      "sidebar-border": "#303642",
      "sidebar-ring": "#F2A33C",
      "radius": "16px"
    }
  },
  "meta": {
    "source": "katagami",
    "languageId": "en-019ef830-9e12-72e2-a541-4884c781c3fb",
    "slug": "koka",
    "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_ink",
        "bg",
        "bg_2",
        "border",
        "error",
        "faint",
        "info",
        "line",
        "line_dim",
        "muted",
        "on_accent",
        "success",
        "surface",
        "surface_2",
        "teal",
        "teal_ink",
        "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": [
        "full",
        "lg",
        "md",
        "none",
        "sm"
      ],
      "shadows": [
        "glow_amber",
        "glow_teal",
        "lg",
        "md",
        "sm"
      ],
      "spacing": [
        "base",
        "scale"
      ],
      "surfaces": [
        "bg_pattern",
        "card_style",
        "treatment"
      ],
      "borders": [
        "accent_width",
        "character",
        "default_width",
        "style"
      ],
      "motion": [
        "duration",
        "easing",
        "philosophy"
      ]
    }
  }
}
```