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dark · maximalist · y2k · playful · modern

Neon Y2K.

Hot magenta and cyber-lime on absolute black. Oversized monospace, chrome gradients, hard-edged buttons, glowing accents. Built for clubs and clients with attitude.

01 · Preview

The kitchen sink.

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dark · maximalist · y2k

Build with Neon Y2K.

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.

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Featured
Tokens that travel with your prompts.
Active users
12,840
Status
All systems operational
01 · Color

Palette

primary
#EAF2FF
secondary
#7B86A8
tertiary
#FF2E97
neutral
#000000
surface
#0A0A12
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
0
md
2px
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: "Neon Y2K"
3description: "Hot magenta and cyber-lime on absolute black. Oversized monospace, chrome gradients, hard-edged buttons, glowing accents. Built for clubs and clients with attitude."
4tags: [dark, maximalist, y2k, playful, modern]
5colors:
6 primary: "#EAF2FF"
7 secondary: "#7B86A8"
8 tertiary: "#FF2E97"
9 neutral: "#000000"
10 surface: "#0A0A12"
11typography:
12 display: "JetBrains Mono"
13 body: "Space Grotesk"
14 mono: "JetBrains Mono"
15 scale:
16 hero: "5rem / 1 / 700 / -0.02em"
17 h1: "3rem / 1.05 / 700 / -0.015em"
18 h2: "1.25rem / 1.2 / 600 / 0.04em"
19 body: "1rem / 1.55 / 400 / 0"
20radius:
21 sm: 0
22 md: 2px
23 lg: 4px
24shadows:
25 card: "0 0 0 1px rgba(255, 46, 151, 0.20), 0 12px 32px -12px rgba(255, 46, 151, 0.30)"
26 button: "0 0 24px -4px rgba(204, 255, 0, 0.55), 0 0 0 1px rgba(204, 255, 0, 0.40)"
27borders:
28 card: "1px solid rgba(255, 46, 151, 0.20)"
29 divider: "rgba(0, 229, 255, 0.20)"
30buttons:
31 primary:
32 background: linear-gradient(180deg, #DDFF66 0%, #B8E600 100%)
33 color: #000000
34 border: 1px solid #CCFF00
35 shape: sharp
36 padding: 12px 22px
37 font: mono / 700 / 0.875rem / 0.10em
38 uppercase: true
39 shadow: 0 0 24px -4px rgba(204, 255, 0, 0.55), 0 0 0 1px rgba(204, 255, 0, 0.40)
40 hover: glow
41 secondary:
42 background: #0A0A12
43 color: #FF2E97
44 border: 1px solid #FF2E97
45 shape: sharp
46 padding: 12px 22px
47 font: mono / 700 / 0.875rem / 0.10em
48 uppercase: true
49 shadow: 0 0 16px -4px rgba(255, 46, 151, 0.50)
50 outline:
51 background: transparent
52 color: #EAF2FF
53 border: 1px solid rgba(234, 242, 255, 0.25)
54 shape: sharp
55 padding: 12px 22px
56 font: mono / 600 / 0.875rem / 0.10em
57 uppercase: true
58 ghost:
59 background: transparent
60 color: #00E5FF
61 border: none
62 shape: sharp
63 padding: 10px 4px
64 font: mono / 600 / 0.8125rem / 0.12em
65 uppercase: true
66 hover: underline
67charts:
68 variant: "thin-bars"
69 gridlines: false
70 bar_radius: 0
71 bar_gap: 10px
72 highlight: all
73 axis_color: "#7B86A8"
74 palette: ["#FF2E97", "#CCFF00", "#00E5FF", "#FF2E97", "#CCFF00", "#00E5FF", "#FF2E97"]
75fonts_url: "https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500;600;700&display=swap"
76dependencies: ["lucide-react"]
77---
78
79# Neon Y2K
80
81## AI Build Instructions
82
83> **Read this section before writing any code.** The rules below
84> are non-negotiable. Every value used in the UI must come from this
85> file's frontmatter — never substitute, approximate, or invent new
86> colors, fonts, radii, or shadows. If a value is missing, ask the
87> user before adding one.
88
89### 1 · Your role
90
91You are building UI for a project that has adopted **Neon Y2K** as its
92design system. Treat `DESIGN.md` as the single source of truth.
93Your job is to translate the user's product requirements into
94components and pages that look like they were designed by the same
95person who authored this file.
96
97### 2 · Token compliance
98
99- Pull every color, font family, radius, shadow, and spacing value
100 from the frontmatter at the top of this file.
101- Use semantic roles (e.g. `primary`, `accent`, `muted`) — never
102 hard-code hex values that bypass the system.
103- When a token can be expressed as a CSS variable, declare it once
104 in your global stylesheet and reference it everywhere downstream.
105- The Google Fonts `<link>` is provided in the Typography section.
106 Add it to `<head>` before any component renders.
107
108### 3 · Component recipes
109
110Use these recipes verbatim when building the corresponding component.
111
112#### Buttons
113
114Four variants are defined. Pick one — never blend variants or invent a fifth.
115
116- **Primary** — sharp shape, bg `linear-gradient(180deg, #DDFF66 0%, #B8E600 100%)`, text `#000000`, border `1px solid #CCFF00`, padding `12px 22px`, weight `700`, uppercased, shadow `0 0 24px -4px rgba(204, 255, 0, 0.55), 0 0 0 1px rgba(204, 255, 0, 0.40)`.
117- **Secondary** — sharp shape, bg `#0A0A12`, text `#FF2E97`, border `1px solid #FF2E97`, padding `12px 22px`, weight `700`, uppercased, shadow `0 0 16px -4px rgba(255, 46, 151, 0.50)`.
118- **Outline** — sharp shape, text `#EAF2FF`, border `1px solid rgba(234, 242, 255, 0.25)`, padding `12px 22px`, weight `600`, uppercased.
119- **Ghost** — sharp shape, text `#00E5FF`, padding `10px 4px`, weight `600`, uppercased.
120
121Reach for **primary** as the single dominant CTA per screen.
122**Secondary** for the supporting action. **Outline** for tertiary
123actions in toolbars. **Ghost** for inline links and table actions.
124
125#### Cards
126
127- Background: `#0A0A12`
128- Border: `1px solid rgba(255, 46, 151, 0.20)`
129- Shadow: `0 0 0 1px rgba(255, 46, 151, 0.20), 0 12px 32px -12px rgba(255, 46, 151, 0.30)`
130- Radius: `radius.lg` (`4px`)
131- Internal padding: `20px` for compact cards, `24–28px` for content cards.
132
133#### Tabs
134
135Variant: `brutalist`. Hard rectangular tabs with thick borders. Active tab is fully filled in the primary color.
136Tabs are uppercased with `0.1em` tracking.
137
138#### Charts
139
140- Bar/line variant: `thin-bars`
141- Bar radius: `0`
142- No gridlines — let the bars/lines carry the data.
143- Highlight strategy: `all` — emphasize a single bar/point per chart.
144- Use the declared palette in order: `#FF2E97`, `#CCFF00`, `#00E5FF`, `#FF2E97`, `#CCFF00`, `#00E5FF`, `#FF2E97`.
145
146#### Typography pairings
147
148- **Display (`JetBrains Mono`)** — h1, h2, hero headlines, brand wordmarks.
149- **Body (`Space Grotesk`)** — paragraphs, labels, button text, form inputs.
150- **Mono (`JetBrains Mono`)** — code, eyebrows, metadata, numerals in tables.
151
152### 4 · Hard constraints
153
154Never do any of the following without explicit instruction from the user:
155
156- Introduce a new color, font, radius, or shadow that isn't declared above.
157- Mix this system with another (e.g. don't paste in Material or Bootstrap defaults).
158- Use generic gradient defaults (purple→blue, peach→pink) — they break the system's voice.
159- Reach for emoji icons. Use a consistent icon library and size icons in line with body type.
160- Add motion that exceeds the system's restraint — keep transitions short (≤200ms) and subtle.
161
162### 5 · Before you finish — verify
163
164Run through this checklist for every screen you produce:
165
166- [ ] Every color used appears in the Colors table above.
167- [ ] Headlines use the display font; body copy uses the body font.
168- [ ] Buttons match one of the declared variants exactly (shape, padding, weight).
169- [ ] Border-radius values come from `radius.sm` / `radius.md` / `radius.lg` / `radius.pill`.
170- [ ] Cards and dividers use the declared border + shadow tokens.
171- [ ] No values were invented; if you needed something missing, you stopped and asked.
172
173---
174
175## Overview
176Neon Y2K is loud. It is loud on purpose. Three accents — **hot magenta #FF2E97**, **cyber lime #CCFF00**, **CRT cyan #00E5FF** — burn against absolute black, each with a defined role. The display font is oversized monospace at +10% tracking; the body is Space Grotesk for geometric edge. Corners are sharp. Glows are real.
177
178This is a system for product launches, club nights, music landings, and brands who want to be seen from across the room.
179
180## Color (the trinity)
181- **Magenta #FF2E97** — secondary buttons, card border halos, primary brand accent. The everyday energy.
182- **Lime #CCFF00** — the primary CTA gradient. Used once per screen, max. The weapon.
183- **Cyan #00E5FF** — ghost links, dividers, tertiary highlights. The cool counterweight.
184
185Black is **pure #000000**. Surfaces sit at **#0A0A12** — a microscopic blue cast so cards lift without leaving the void.
186
187## Typography
188- **Display: JetBrains Mono** at 5rem / 700, -2% tracking. Uppercase headlines run +4% to +10% depending on size.
189- **Body: Space Grotesk** at 1rem for paragraphs and UI labels.
190- **Mono is the lead.** Body is the supporting cast.
191
192| Role | Font | Size | Weight | Tracking |
193|------|------|------|--------|----------|
194| Hero | Mono | 5rem | 700 | -0.02em |
195| H1 | Mono | 3rem | 700 | -0.015em |
196| H2 | Body | 1.25rem | 600 | +0.04em UPPER |
197| Body | Body | 1rem | 400 | 0 |
198| Label | Mono | 0.875rem | 700 | +0.10em UPPER |
199
200## Buttons
201- **Primary** — chrome-lime gradient (180° lime to deep-lime), 1px lime border, **24px lime glow** + 1px ring. Sharp corners, mono uppercase, +10% tracking. The single loudest element on any screen.
202- **Secondary** — void fill with **magenta neon outline** + 16px magenta glow. Use for high-engagement secondary calls.
203- **Outline** — cool blue-white 25% hairline, no glow. Tertiary actions.
204- **Ghost** — cyan mono label, hover underline. For chrome and inline links.
205
206All buttons are **sharp** (0–4px radius). Pills are forbidden — they don't belong in the Y2K language.
207
208## Cards
209**Surface #0A0A12** with a **1px magenta-20% border** and a **12px magenta drop-shadow at 30% opacity**. The card looks lit from within. Radius is **4px maximum**.
210
211## Charts & Data
212Bars rotate through the trinity — magenta, lime, cyan, repeat. No gridlines (the void is the grid). Bar gap 10px. Sharp 0px corners. Axis labels in cool blue-grey #7B86A8.
213
214## Do's and Don'ts
215- ✅ Use the trinity: magenta + lime + cyan. Each has a defined role; don't substitute.
216- ✅ Glow your primary CTA. The 24px lime halo is the system's signature.
217- ✅ Keep monospace as the display family. It IS the Y2K voice.
218- ✅ Sharp corners. 0px on bars, 0–4px on everything else.
219- ❌ No pill buttons. No rounded cards above 4px.
220- ❌ No body text in any of the three accents — they're for action and signal only.
221- ❌ No more than one lime CTA per view. Lime earns its loudness by being rare.
222- ❌ No drop-shadow without a colored ring underneath. The combo is what makes it look lit.
223
224---
225
226## Tokens
227
228> Generated from the same source the live preview renders from.
229> Treat the values below as the contract — never substitute approximations.
230
231### Colors
232
233| Role | Value |
234|-----------|-------|
235| primary | `#EAF2FF` |
236| secondary | `#7B86A8` |
237| tertiary | `#FF2E97` |
238| neutral | `#000000` |
239| surface | `#0A0A12` |
240
241### Typography
242
243- **Display:** JetBrains Mono
244- **Body:** Space Grotesk
245- **Mono:** JetBrains Mono
246
247| Role | size / leading / weight / tracking |
248|------|------------------------------------|
249| Hero | 5rem / 1 / 700 / -0.02em |
250| H1 | 3rem / 1.05 / 700 / -0.015em |
251| H2 | 1.25rem / 1.2 / 600 / 0.04em |
252| Body | 1rem / 1.55 / 400 / 0 |
253
254### Radius
255
256- sm: `0`
257- md: `2px`
258- lg: `4px`
259
260### Shadows
261
262- **card:** `0 0 0 1px rgba(255, 46, 151, 0.20), 0 12px 32px -12px rgba(255, 46, 151, 0.30)`
263- **button:** `0 0 24px -4px rgba(204, 255, 0, 0.55), 0 0 0 1px rgba(204, 255, 0, 0.40)`
264
265### Borders
266
267- **card:** `1px solid rgba(255, 46, 151, 0.20)`
268- **divider:** `rgba(0, 229, 255, 0.20)`
269
270### Buttons
271
272Four variants, each fully tokenized. The preview renders from these exact values.
273
274#### Primary
275
276| Property | Value |
277|----------|-------|
278| shape | `sharp` |
279| background | `linear-gradient(180deg, #DDFF66 0%, #B8E600 100%)` |
280| color | `#000000` |
281| border | `1px solid #CCFF00` |
282| padding | `12px 22px` |
283| fontFamily | `mono` |
284| fontWeight | `700` |
285| fontSize | `0.875rem` |
286| tracking | `0.10em` |
287| uppercase | `true` |
288| shadow | `0 0 24px -4px rgba(204, 255, 0, 0.55), 0 0 0 1px rgba(204, 255, 0, 0.40)` |
289| hoverHint | `glow` |
290
291#### Secondary
292
293| Property | Value |
294|----------|-------|
295| shape | `sharp` |
296| background | `#0A0A12` |
297| color | `#FF2E97` |
298| border | `1px solid #FF2E97` |
299| padding | `12px 22px` |
300| fontFamily | `mono` |
301| fontWeight | `700` |
302| fontSize | `0.875rem` |
303| tracking | `0.10em` |
304| uppercase | `true` |
305| shadow | `0 0 16px -4px rgba(255, 46, 151, 0.50)` |
306
307#### Outline
308
309| Property | Value |
310|----------|-------|
311| shape | `sharp` |
312| background | `transparent` |
313| color | `#EAF2FF` |
314| border | `1px solid rgba(234, 242, 255, 0.25)` |
315| padding | `12px 22px` |
316| fontFamily | `mono` |
317| fontWeight | `600` |
318| fontSize | `0.875rem` |
319| tracking | `0.10em` |
320| uppercase | `true` |
321
322#### Ghost
323
324| Property | Value |
325|----------|-------|
326| shape | `sharp` |
327| background | `transparent` |
328| color | `#00E5FF` |
329| border | `none` |
330| padding | `10px 4px` |
331| fontFamily | `mono` |
332| fontWeight | `600` |
333| fontSize | `0.8125rem` |
334| tracking | `0.12em` |
335| uppercase | `true` |
336| hoverHint | `underline` |
337
338### Charts
339
340| Property | Value |
341|----------|-------|
342| variant | `thin-bars` |
343| gridlines | `false` |
344| barRadius | `0` |
345| barGap | `10px` |
346| highlight | `all` |
347| axisColor | `#7B86A8` |
348| palette | `#FF2E97`, `#CCFF00`, `#00E5FF`, `#FF2E97`, `#CCFF00`, `#00E5FF`, `#FF2E97` |
349
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=Space+Grotesk:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500;600;700&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: ['"Space Grotesk"', 'sans-serif'],
mono: ['"JetBrains Mono"', 'monospace'],
},
colors: {
primary: '#EAF2FF',
secondary: '#7B86A8',
accent: '#FF2E97',
neutral: '#000000',
surface: '#0A0A12',
},
borderRadius: {
sm: '0',
md: '2px',
lg: '4px',
},
},
},
};
05 · Keep browsing

Try another system.