dark · premium · design-tool · cinematic

Voidstage.

Pure black void canvas, geometric medium-weight display with extreme negative tracking, frosted glass pills, and a single electric blue accent.

01 · Preview

The kitchen sink.

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dark · premium · design-tool

Build with Voidstage.

A complete design system, ready for your AI coding agent. Every primitive, token, and pattern below is generated straight from DESIGN.md — drop the file in your project and ship matching UI in minutes.

Start building →View on GitHub

Featured

Tokens that travel with your prompts.

Active users

12,840

Status

All systems operational

01 · Color

Palette

primary

#FFFFFF

secondary

#A6A6A6

tertiary

#0099FF

neutral

#000000

surface

#090909

02 · Typography

Type scale

display

The quick brown fox

h1

A major section heading

h2

A subsection title

body

Body copy in the system's body font.

03 · Buttons

Buttons

PrimarySecondaryOutlineGhostText link →

Disabled

04 · Inputs

Form controls

Email

iris@studio.com

Password

••••••••••••

Bio

Designing for long-form publications. Based in Kyoto.

05 · Choices

Select & toggle

Plan

Starter

Free forever

Pro

$18 / month

Team

$48 / month

Toggles

Public profile

Require two-factor

Auto-accept invites

06 · Tags & badges

Labeling

NeutralAccentSolidWith dot

NEWBETAv2.0LIVE

07 · Cards

Cards

Feature

Editorial rigor

Prose-first token file — decisions live next to their reasoning.

Learn more →

Metric

24,810

▲ +12.4% vs last week

08 · Navigation

Tabs & breadcrumb

Overview

Analytics

Members

Workspace/Projects/Heritage System

09 · Spacing

Spacing scale

Fine micro-scale (1–5px) for pills, editorial scale (12–21px) for the grid.

1px

2px

5px

8px · base

10px

12px

14px

16px

18px

20px

21px

10 · Radius

Border radius scale

The system's own radius tokens — sm for chips and inputs, md for buttons, lg for cards, pill for fully-rounded CTAs.

sm

5px

md

8px

lg

12px

pill

9999px

11 · Elevation

Depth & elevation

00 · Flat

Elevation 00

01 · Low

Elevation 01

02 · Medium

Elevation 02

03 · High

Elevation 03

12 · Data

Charts

Weekly revenue

$48,210

M

T

W

T

F

S

S

Active sessions

2,184

02 · The file

DESIGN.md

markdown

1---
2name: Voidstage
3description: "Pure black void canvas, geometric medium-weight display with extreme negative tracking, frosted glass pills, and a single electric blue accent."
4tags: [dark, premium, "design-tool", cinematic]
5colors:
6  primary:   "#ffffff"
7  secondary: "#a6a6a6"
8  tertiary:  "#0099ff"
9  neutral:   "#000000"
10  surface:   "#090909"
11typography:
12  display: Geist
13  body:    Inter
14  mono:    "JetBrains Mono"
15  scale:
16    hero: "4.5rem / 0.85 / 500 / -3.6px"
17    h1:   "3.875rem / 0.95 / 500 / -2.5px"
18    h2:   "2rem / 1.13 / 500 / -1px"
19    body: "0.9375rem / 1.3 / 400 / -0.01px"
20radius:
21  sm: 5px
22  md: 8px
23  lg: 12px
24  pill: 9999px
25shadows:
26  card:   "rgba(0,153,255,0.15) 0 0 0 1px, rgba(0,0,0,0.25) 0 10px 30px"
27  button: "rgba(0,153,255,0.15) 0 0 0 1px"
28buttons:
29  primary:
30    background: #FFFFFF
31    color: #000000
32    border: none
33    shape: pill
34    padding: 10px 22px
35    font: display / 500 / -0.01em
36  secondary:
37    background: rgba(255,255,255,0.08)
38    color: #FFFFFF
39    border: 1px solid rgba(255,255,255,0.16)
40    shape: pill
41    padding: 10px 22px
42    font: display / 500 / -0.01em
43  outline:
44    background: transparent
45    color: #FFFFFF
46    border: 1px solid rgba(255,255,255,0.4)
47    shape: pill
48    padding: 10px 22px
49    font: display / 500 / -0.01em
50  ghost:
51    background: transparent
52    color: rgba(255,255,255,0.6)
53    border: none
54    shape: pill
55    padding: 10px 14px
56    font: display / 500 / -0.01em
57charts:
58  variant: dots
59  stroke_width: 1
60  fill_opacity: 0
61  bar_gap: 10px
62  highlight: all
63  dot_marker: true
64fonts_url: "https://fonts.googleapis.com/css2?family=Geist:wght@400;500;600&family=Inter:wght@400;500;700&family=JetBrains+Mono:wght@400&display=swap"
65dependencies: ["lucide-react"]
66---
67 
68# Voidstage
69 
70## AI Build Instructions
71 
72> **Read this section before writing any code.** The rules below
73> are non-negotiable. Every value used in the UI must come from this
74> file's frontmatter — never substitute, approximate, or invent new
75> colors, fonts, radii, or shadows. If a value is missing, ask the
76> user before adding one.
77 
78### 1 · Your role
79 
80You are building UI for a project that has adopted **Voidstage** as its
81design system. Treat `DESIGN.md` as the single source of truth.
82Your job is to translate the user's product requirements into
83components and pages that look like they were designed by the same
84person who authored this file.
85 
86### 2 · Token compliance
87 
88- Pull every color, font family, radius, shadow, and spacing value
89  from the frontmatter at the top of this file.
90- Use semantic roles (e.g. `primary`, `accent`, `muted`) — never
91  hard-code hex values that bypass the system.
92- When a token can be expressed as a CSS variable, declare it once
93  in your global stylesheet and reference it everywhere downstream.
94- The Google Fonts `<link>` is provided in the Typography section.
95  Add it to `<head>` before any component renders.
96 
97### 3 · Component recipes
98 
99Use these recipes verbatim when building the corresponding component.
100 
101#### Buttons
102 
103Four variants are defined. Pick one — never blend variants or invent a fifth.
104 
105- **Primary** — pill shape, bg `#FFFFFF`, text `#000000`, padding `10px 22px`, weight `500`.
106- **Secondary** — pill shape, bg `rgba(255,255,255,0.08)`, text `#FFFFFF`, border `1px solid rgba(255,255,255,0.16)`, padding `10px 22px`, weight `500`.
107- **Outline** — pill shape, text `#FFFFFF`, border `1px solid rgba(255,255,255,0.4)`, padding `10px 22px`, weight `500`.
108- **Ghost** — pill shape, text `rgba(255,255,255,0.6)`, padding `10px 14px`, weight `500`.
109 
110Reach for **primary** as the single dominant CTA per screen.
111**Secondary** for the supporting action. **Outline** for tertiary
112actions in toolbars. **Ghost** for inline links and table actions.
113 
114#### Cards
115 
116- Background: `#090909`
117- Shadow: `rgba(0,153,255,0.15) 0 0 0 1px, rgba(0,0,0,0.25) 0 10px 30px`
118- Radius: `radius.lg` (`12px`)
119- Internal padding: `20px` for compact cards, `24–28px` for content cards.
120 
121#### Charts
122 
123- Bar/line variant: `dots`
124- Highlight strategy: `all` — emphasize a single bar/point per chart.
125 
126#### Typography pairings
127 
128- **Display (`Geist`)** — h1, h2, hero headlines, brand wordmarks.
129- **Body (`Inter`)** — paragraphs, labels, button text, form inputs.
130- **Mono (`JetBrains Mono`)** — code, eyebrows, metadata, numerals in tables.
131 
132### 4 · Hard constraints
133 
134Never do any of the following without explicit instruction from the user:
135 
136- Introduce a new color, font, radius, or shadow that isn't declared above.
137- Mix this system with another (e.g. don't paste in Material or Bootstrap defaults).
138- Use generic gradient defaults (purple→blue, peach→pink) — they break the system's voice.
139- Reach for emoji icons. Use a consistent icon library and size icons in line with body type.
140- Add motion that exceeds the system's restraint — keep transitions short (≤200ms) and subtle.
141 
142### 5 · Before you finish — verify
143 
144Run through this checklist for every screen you produce:
145 
146- [ ] Every color used appears in the Colors table above.
147- [ ] Headlines use the display font; body copy uses the body font.
148- [ ] Buttons match one of the declared variants exactly (shape, padding, weight).
149- [ ] Border-radius values come from `radius.sm` / `radius.md` / `radius.lg` / `radius.pill`.
150- [ ] Cards and dividers use the declared border + shadow tokens.
151- [ ] No values were invented; if you needed something missing, you stopped and asked.
152 
153---
154 
155## 1. Atmosphere
156 
157Voidstage is a cinematic, tool-obsessed dark canvas — the confidence of a design tool built by designers who worship craft. The entire experience is drenched in pure black (`#000000`), not warm charcoal or cozy dark gray, but an absolute void that makes every element feel like it's floating in deep space. The product UI is the hero art; full-fidelity screenshots and interactive demos are embedded directly in the narrative.
158 
159The typography is the signature move. A geometric medium-weight display with aggressive negative tracking (as extreme as -5.5px on 110px headlines) creates words under pressure — compressed, kinetic, almost spring-loaded. Body type transitions to a refined neo-grotesque with extensive OpenType alternates, giving even small text a custom feel. The single accent — electric blue (`#0099ff`) — is deployed as link color, border, and ring shadow, a cold throughline against the warm-less black.
160 
161**Signature moves**
162- Pure `#000000` void canvas — never warm or gray-tinted
163- Geometric display at weight 500 only, with extreme negative tracking
164- Electric blue (`#0099ff`) as the sole accent — interactive only
165- Pill-shaped buttons (40–100px radius) — no sharp corners on interactive
166- Frosted glass surfaces using `rgba(255,255,255,0.1)` over dark
167- Blue ring shadows for card containment: `rgba(0,153,255,0.15) 0 0 0 1px`
168 
169## 2. Palette
170 
171### Primary
172- **Void Black** `#000000` — page canvas
173- **Pure White** `#ffffff` — heading text, button text on accent
174- **Electric Blue** `#0099ff` — links, borders, focus, accent
175 
176### Surface
177- Void `#000000` — page
178- Frosted `rgba(255,255,255,0.1)` — translucent button / glass
179- Frosted Hover `rgba(255,255,255,0.5)` — slightly more opaque
180- Near Black `#090909` — elevated dark surface, ring color
181 
182### Text
183- Pure White `#ffffff` — headings, high-emphasis
184- Muted Silver `#a6a6a6` — body, descriptions
185- Ghost White `rgba(255,255,255,0.6)` — placeholders, tertiary
186 
187### Glow
188- Blue Glow `rgba(0,153,255,0.15)` — focus ring shadow, halo
189- Default Link Blue `#0000ee` — sparingly in content areas
190 
191## 3. Typography
192 
193| Role | Size | Weight | Leading | Tracking |
194|------|------|--------|---------|----------|
195| Display Hero | 110px | 500 | 0.85 | -5.5px |
196| Section Display | 85px | 500 | 0.95 | -4.25px |
197| Section Heading | 62px | 500 | 1.00 | -3.1px |
198| Feature Heading | 32px | 500 | 1.13 | -1px |
199| Card Title | 24px | 400 | 1.30 | -0.01px |
200| Body L | 18px | 400 | 1.30 | -0.01px |
201| Body | 15px | 400 | 1.30 | -0.01px |
202| Nav / UI | 15px | 400 | 1.00 | -0.15px |
203| Caption | 14px | 400 | 1.40 | normal |
204| Label | 13px | 500 | 1.60 | normal |
205| Mono | 10.4px | 400 | 1.60 | normal |
206 
207**Compression is the personality.** Display weight is fixed at 500 — never bold, never regular. Ultra-tight line-heights (0.85) at display sizes mean letters nearly overlap vertically. Intentional density that rewards reading at arm's length.
208 
209## 4. Buttons
210 
211### Solid White Pill (Primary)
212```css
213background: #ffffff;
214color: #000000;
215padding: 10px 20px;
216border-radius: 9999px;
217```
218 
219### Frosted Pill
220- `rgba(255,255,255,0.1)` background, white text
221- Pill radius (40px+)
222- Glass effect on dark — translucent and ambient
223 
224### Ghost
225- No background, white text
226- Hover reveals subtle frosted background
227 
228## 5. Cards
229 
230- **Dark surface card**: black or `#090909`, with `rgba(0,153,255,0.15) 0 0 0 1px` blue ring shadow, 10–15px radius
231- **Elevated card**: `rgba(255,255,255,0.1) 0 0.5px 0 0.5px` (top highlight) + `rgba(0,0,0,0.25) 0 10px 30px` (deep ambient)
232- Product screenshots: 8–12px radius, full-width within dark containers
233 
234## 6. Spacing
235 
236- Base: 8px
237- Scale: `1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 30, 35`
238- Section vertical: 80–120px
239- Card internal: 15–30px
240 
241## 7. Radius scale
242 
243`1 / 5–7 / 8 / 10–12 / 15–20 / 30–40 / 100` — pill (100px+) is reserved for primary CTAs and tags. Cards stay at 10–15px.
244 
245## 8. Depth & elevation
246 
247| Level | Treatment | Use |
248|-------|-----------|-----|
249| 0 | Pure black, no shadow | Page background |
250| 1 | `rgba(0,153,255,0.15) 0 0 0 1px` | Card borders, blue ring |
251| 2 | `#090909 0 0 0 2px` | Subtle near-black containment |
252| 3 | White edge highlight + deep ambient | Elevated cards, floating |
253 
254**Inverted elevation.** Instead of darker shadows on lighter backgrounds, Voidstage uses blue-tinted ring shadows for containment, white edge highlights to simulate light hitting the top edge, and deep ambient shadows for true floating. There is no glassmorphism blur — translucency is achieved through simple rgba opacity.
255 
256## 9. Do's & don'ts
257 
258✅ **Do**
259- Use pure black (`#000000`) — never charcoal or warm dark
260- Apply extreme negative tracking on display (-3px to -5.5px)
261- Keep all buttons pill-shaped (40px+ radius)
262- Reserve electric blue (`#0099ff`) for interactive accents only
263- Apply blue ring shadows for card containment
264 
265❌ **Don't**
266- Use warm dark backgrounds (`#1a1a1a`, `#2d2d2d`)
267- Use bold (700+) on display — medium 500 only
268- Introduce a second accent color — single accent system
269- Use squared corners on interactive elements
270- Add decorative imagery — the product is the illustration
271 
272---
273 
274## Tokens
275 
276> Generated from the same source the live preview renders from.
277> Treat the values below as the contract — never substitute approximations.
278 
279### Colors
280 
281| Role      | Value |
282|-----------|-------|
283| primary   | `#ffffff` |
284| secondary | `#a6a6a6` |
285| tertiary  | `#0099ff` |
286| neutral   | `#000000` |
287| surface   | `#090909` |
288 
289### Typography
290 
291- **Display:** Geist
292- **Body:** Inter
293- **Mono:** JetBrains Mono
294 
295| Role | size / leading / weight / tracking |
296|------|------------------------------------|
297| Hero | 4.5rem / 0.85 / 500 / -3.6px |
298| H1   | 3.875rem / 0.95 / 500 / -2.5px |
299| H2   | 2rem / 1.13 / 500 / -1px |
300| Body | 0.9375rem / 1.3 / 400 / -0.01px |
301 
302### Radius
303 
304- sm: `5px`
305- md: `8px`
306- lg: `12px`
307- pill: `9999px`
308 
309### Shadows
310 
311- **card:** `rgba(0,153,255,0.15) 0 0 0 1px, rgba(0,0,0,0.25) 0 10px 30px`
312- **button:** `rgba(0,153,255,0.15) 0 0 0 1px`
313 
314### Buttons
315 
316Four variants, each fully tokenized. The preview renders from these exact values.
317 
318#### Primary
319 
320| Property | Value |
321|----------|-------|
322| shape | `pill` |
323| background | `#FFFFFF` |
324| color | `#000000` |
325| border | `none` |
326| padding | `10px 22px` |
327| fontFamily | `display` |
328| fontWeight | `500` |
329| tracking | `-0.01em` |
330 
331#### Secondary
332 
333| Property | Value |
334|----------|-------|
335| shape | `pill` |
336| background | `rgba(255,255,255,0.08)` |
337| color | `#FFFFFF` |
338| border | `1px solid rgba(255,255,255,0.16)` |
339| padding | `10px 22px` |
340| fontFamily | `display` |
341| fontWeight | `500` |
342| tracking | `-0.01em` |
343 
344#### Outline
345 
346| Property | Value |
347|----------|-------|
348| shape | `pill` |
349| background | `transparent` |
350| color | `#FFFFFF` |
351| border | `1px solid rgba(255,255,255,0.4)` |
352| padding | `10px 22px` |
353| fontFamily | `display` |
354| fontWeight | `500` |
355| tracking | `-0.01em` |
356 
357#### Ghost
358 
359| Property | Value |
360|----------|-------|
361| shape | `pill` |
362| background | `transparent` |
363| color | `rgba(255,255,255,0.6)` |
364| border | `none` |
365| padding | `10px 14px` |
366| fontFamily | `display` |
367| fontWeight | `500` |
368| tracking | `-0.01em` |
369 
370### Charts
371 
372| Property | Value |
373|----------|-------|
374| variant | `dots` |
375| strokeWidth | `1` |
376| fillOpacity | `0` |
377| barGap | `10px` |
378| highlight | `all` |
379| dotMarker | `true` |
380

03 · How to use it

Wire it into your agent.

markdown

# CLAUDE.md
 
Reference @DESIGN.md for all styling decisions. Apply tokens strictly — do not introduce colors, fonts, or radii outside the system. When in doubt, prefer the values declared in DESIGN.md frontmatter.

04 · Required setup

Three snippets.

Google Fonts link

html

<link rel="stylesheet" href="https://fonts.googleapis.com/css2?family=Geist:wght@400;500;600&family=Inter:wght@400;500;700&family=JetBrains+Mono:wght@400&display=swap" />

Install dependencies

bash

npm install lucide-react

Tailwind config

// tailwind.config.js
export default {
  theme: {
    extend: {
      fontFamily: {
        display: ['"Geist"', 'serif'],
        sans:    ['"Inter"', 'sans-serif'],
        mono:    ['"JetBrains Mono"', 'monospace'],
      },
      colors: {
        primary:   '#ffffff',
        secondary: '#a6a6a6',
        accent:    '#0099ff',
        neutral:   '#000000',
        surface:   '#090909',
      },
      borderRadius: {
        sm: '5px',
        md: '8px',
        lg: '12px',
      },
    },
  },
};