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dark · minimal · brutalist

Dark Terminal.

Emerald on near-black. Monospace developer aesthetic with thin borders.

01 · Preview

The kitchen sink.

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dark · minimal · brutalist

Build with Dark Terminal.

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
#E8E8E8
secondary
#7A7A7A
tertiary
#10B981
neutral
#0A0A0A
surface
#141414
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
2px
md
4px
lg
4px
pill
999px
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: "Dark Terminal"
3description: "Emerald on near-black. Monospace developer aesthetic with thin borders."
4tags: [dark, minimal, brutalist]
5colors:
6 primary: "#E8E8E8"
7 secondary: "#7A7A7A"
8 tertiary: "#10B981"
9 neutral: "#0A0A0A"
10 surface: "#141414"
11typography:
12 display: "JetBrains Mono"
13 body: Inter
14 mono: "JetBrains Mono"
15radius:
16 sm: 2px
17 md: 4px
18 lg: 4px
19buttons:
20 primary:
21 background: #00FF88
22 color: #000000
23 border: none
24 shape: sharp
25 padding: 10px 20px
26 font: mono / 700 / 0.06em
27 uppercase: true
28 secondary:
29 background: #0A0A0A
30 color: #00FF88
31 border: 1px solid #00FF88
32 shape: sharp
33 padding: 10px 20px
34 font: mono / 600 / 0.06em
35 uppercase: true
36 outline:
37 background: transparent
38 color: #7A7A7A
39 border: 1px solid #2A2A2A
40 shape: sharp
41 padding: 10px 20px
42 font: mono / 500 / 0.06em
43 uppercase: true
44 ghost:
45 background: transparent
46 color: #00FF88
47 border: none
48 shape: sharp
49 padding: 10px 0
50 font: mono / 500
51 hover: underline
52charts:
53 variant: "thin-bars"
54 gridlines: true
55 bar_gap: 10px
56 highlight: all
57fonts_url: "https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500;700&family=Inter:wght@400;500;600&display=swap"
58dependencies: ["lucide-react"]
59---
60
61# Dark Terminal
62
63## AI Build Instructions
64
65> **Read this section before writing any code.** The rules below
66> are non-negotiable. Every value used in the UI must come from this
67> file's frontmatter — never substitute, approximate, or invent new
68> colors, fonts, radii, or shadows. If a value is missing, ask the
69> user before adding one.
70
71### 1 · Your role
72
73You are building UI for a project that has adopted **Dark Terminal** as its
74design system. Treat `DESIGN.md` as the single source of truth.
75Your job is to translate the user's product requirements into
76components and pages that look like they were designed by the same
77person who authored this file.
78
79### 2 · Token compliance
80
81- Pull every color, font family, radius, shadow, and spacing value
82 from the frontmatter at the top of this file.
83- Use semantic roles (e.g. `primary`, `accent`, `muted`) — never
84 hard-code hex values that bypass the system.
85- When a token can be expressed as a CSS variable, declare it once
86 in your global stylesheet and reference it everywhere downstream.
87- The Google Fonts `<link>` is provided in the Typography section.
88 Add it to `<head>` before any component renders.
89
90### 3 · Component recipes
91
92Use these recipes verbatim when building the corresponding component.
93
94#### Buttons
95
96Four variants are defined. Pick one — never blend variants or invent a fifth.
97
98- **Primary** — sharp shape, bg `#00FF88`, text `#000000`, padding `10px 20px`, weight `700`, uppercased.
99- **Secondary** — sharp shape, bg `#0A0A0A`, text `#00FF88`, border `1px solid #00FF88`, padding `10px 20px`, weight `600`, uppercased.
100- **Outline** — sharp shape, text `#7A7A7A`, border `1px solid #2A2A2A`, padding `10px 20px`, weight `500`, uppercased.
101- **Ghost** — sharp shape, text `#00FF88`, padding `10px 0`, weight `500`.
102
103Reach for **primary** as the single dominant CTA per screen.
104**Secondary** for the supporting action. **Outline** for tertiary
105actions in toolbars. **Ghost** for inline links and table actions.
106
107#### Cards
108
109- Background: `#141414`
110- Radius: `radius.lg` (`4px`)
111- Internal padding: `20px` for compact cards, `24–28px` for content cards.
112
113#### Tabs
114
115Variant: `boxed`. Each tab is a bordered card. Active tab gets the accent border and a subtle fill.
116Tabs are uppercased with `0.06em` tracking.
117
118#### Charts
119
120- Bar/line variant: `thin-bars`
121- Highlight strategy: `all` — emphasize a single bar/point per chart.
122
123#### Typography pairings
124
125- **Display (`JetBrains Mono`)** — h1, h2, hero headlines, brand wordmarks.
126- **Body (`Inter`)** — paragraphs, labels, button text, form inputs.
127- **Mono (`JetBrains Mono`)** — code, eyebrows, metadata, numerals in tables.
128
129### 4 · Hard constraints
130
131Never do any of the following without explicit instruction from the user:
132
133- Introduce a new color, font, radius, or shadow that isn't declared above.
134- Mix this system with another (e.g. don't paste in Material or Bootstrap defaults).
135- Use generic gradient defaults (purple→blue, peach→pink) — they break the system's voice.
136- Reach for emoji icons. Use a consistent icon library and size icons in line with body type.
137- Add motion that exceeds the system's restraint — keep transitions short (≤200ms) and subtle.
138
139### 5 · Before you finish — verify
140
141Run through this checklist for every screen you produce:
142
143- [ ] Every color used appears in the Colors table above.
144- [ ] Headlines use the display font; body copy uses the body font.
145- [ ] Buttons match one of the declared variants exactly (shape, padding, weight).
146- [ ] Border-radius values come from `radius.sm` / `radius.md` / `radius.lg` / `radius.pill`.
147- [ ] Cards and dividers use the declared border + shadow tokens.
148- [ ] No values were invented; if you needed something missing, you stopped and asked.
149
150---
151
152## Overview
153Inspired by terminal emulators and developer tooling. Quiet near-black background, emerald accent for action and status, monospace for headers.
154
155## Colors
156- **Primary #E8E8E8** — body text.
157- **Secondary #7A7A7A** — meta.
158- **Tertiary #10B981** — emerald. Buttons, success, links.
159- **Neutral #0A0A0A** — page background.
160- **Surface #141414** — cards.
161
162## Typography
163**JetBrains Mono** for headlines and code. **Inter** for prose to keep readability.
164
165## Spacing
1664px grid, 80px sections.
167
168## Components
169Thin 1px borders (#262626). 4px radii. No shadows.
170
171## Icons
172`lucide-react`, stroke width 1.5, inheriting text color. Use emerald only on status icons (check, success).
173
174## Do's and Don'ts
175- ✅ Use emerald for active/success states.
176- ✅ Keep contrast high — never gray-on-gray text.
177- ❌ Don't introduce a second accent color.
178- ❌ Don't use shadows on dark surfaces.
179
180---
181
182## Tokens
183
184> Generated from the same source the live preview renders from.
185> Treat the values below as the contract — never substitute approximations.
186
187### Colors
188
189| Role | Value |
190|-----------|-------|
191| primary | `#E8E8E8` |
192| secondary | `#7A7A7A` |
193| tertiary | `#10B981` |
194| neutral | `#0A0A0A` |
195| surface | `#141414` |
196
197### Typography
198
199- **Display:** JetBrains Mono
200- **Body:** Inter
201- **Mono:** JetBrains Mono
202
203### Radius
204
205- sm: `2px`
206- md: `4px`
207- lg: `4px`
208
209### Buttons
210
211Four variants, each fully tokenized. The preview renders from these exact values.
212
213#### Primary
214
215| Property | Value |
216|----------|-------|
217| shape | `sharp` |
218| background | `#00FF88` |
219| color | `#000000` |
220| border | `none` |
221| padding | `10px 20px` |
222| fontFamily | `mono` |
223| fontWeight | `700` |
224| tracking | `0.06em` |
225| uppercase | `true` |
226
227#### Secondary
228
229| Property | Value |
230|----------|-------|
231| shape | `sharp` |
232| background | `#0A0A0A` |
233| color | `#00FF88` |
234| border | `1px solid #00FF88` |
235| padding | `10px 20px` |
236| fontFamily | `mono` |
237| fontWeight | `600` |
238| tracking | `0.06em` |
239| uppercase | `true` |
240
241#### Outline
242
243| Property | Value |
244|----------|-------|
245| shape | `sharp` |
246| background | `transparent` |
247| color | `#7A7A7A` |
248| border | `1px solid #2A2A2A` |
249| padding | `10px 20px` |
250| fontFamily | `mono` |
251| fontWeight | `500` |
252| tracking | `0.06em` |
253| uppercase | `true` |
254
255#### Ghost
256
257| Property | Value |
258|----------|-------|
259| shape | `sharp` |
260| background | `transparent` |
261| color | `#00FF88` |
262| border | `none` |
263| padding | `10px 0` |
264| fontFamily | `mono` |
265| fontWeight | `500` |
266| hoverHint | `underline` |
267
268### Charts
269
270| Property | Value |
271|----------|-------|
272| variant | `thin-bars` |
273| gridlines | `true` |
274| barGap | `10px` |
275| highlight | `all` |
276
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=JetBrains+Mono:wght@400;500;700&family=Inter:wght@400;500;600&display=swap" />

Install dependencies

bash
npm install lucide-react

Tailwind config

js
// tailwind.config.js
export default {
theme: {
extend: {
fontFamily: {
display: ['"JetBrains Mono"', 'serif'],
sans: ['"Inter"', 'sans-serif'],
mono: ['"JetBrains Mono"', 'monospace'],
},
colors: {
primary: '#E8E8E8',
secondary: '#7A7A7A',
accent: '#10B981',
neutral: '#0A0A0A',
surface: '#141414',
},
borderRadius: {
sm: '2px',
md: '4px',
lg: '4px',
},
},
},
};
05 · Keep browsing

Try another system.