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metallic · premium · warm · modern · minimal

Bronze Foundry.

A workshop interface cast in brushed bronze. Warm metallic tonal surfaces with a subtle vertical sheen, Fraunces for display and Inter for UI, sharp 2px corners, a single patina-green accent reserved for verified-cast marks and the primary CTA. Built for craft brands, manufacturing portfolios, and premium hardware product pages where the surface itself reads as machined metal.

01 · Preview

The kitchen sink.

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metallic · premium · warm

Build with Bronze Foundry.

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
#1A1410
secondary
#6E5E4C
tertiary
#1A1410
neutral
#D8C4A8
surface
#E6D3B5
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
1px
md
2px
lg
3px
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: "Bronze Foundry"
3description: "A workshop interface cast in brushed bronze. Warm metallic tonal surfaces with a subtle vertical sheen, Fraunces for display and Inter for UI, sharp 2px corners, a single patina-green accent reserved for verified-cast marks and the primary CTA. Built for craft brands, manufacturing portfolios, and premium hardware product pages where the surface itself reads as machined metal."
4tags: [metallic, premium, warm, modern, minimal]
5colors:
6 primary: "#1a1410"
7 secondary: "#6e5e4c"
8 tertiary: "#1a1410"
9 neutral: "#d8c4a8"
10 surface: "#e6d3b5"
11typography:
12 display: Fraunces
13 body: Inter
14 mono: "JetBrains Mono"
15 scale:
16 hero: "7rem / 0.94 / 400 / -0.04em"
17 h1: "4rem / 1.05 / 400 / -0.025em"
18 h2: "1.875rem / 1.22 / 500 / -0.012em"
19 body: "1.0625rem / 1.65 / 400 / -0.005em"
20radius:
21 sm: 1px
22 md: 2px
23 lg: 3px
24 pill: 9999px
25shadows:
26 card: "rgba(26,20,16,0.06) 0 1px 2px, inset 0 1px 0 rgba(255,240,215,0.40)"
27 button: none
28borders:
29 card: "1px solid rgba(26,20,16,0.14)"
30 divider: rgba(26,20,16,0.18)
31buttons:
32 primary:
33 background: #1a1410
34 color: #e6d3b5
35 border: none
36 shape: sharp
37 padding: 12px 24px
38 font: 600 / 0.8125rem / 0.14em
39 uppercase: true
40 secondary:
41 background: rgba(26,20,16,0.04)
42 color: #1a1410
43 border: 1px solid rgba(26,20,16,0.20)
44 shape: sharp
45 padding: 12px 24px
46 font: 600 / 0.8125rem / 0.14em
47 uppercase: true
48 outline:
49 background: transparent
50 color: #1a1410
51 border: 1px solid rgba(26,20,16,0.16)
52 shape: sharp
53 padding: 12px 24px
54 font: 600 / 0.8125rem / 0.14em
55 uppercase: true
56 ghost:
57 background: transparent
58 color: #6e5e4c
59 border: none
60 shape: sharp
61 padding: 12px 16px
62 font: 600 / 0.8125rem / 0.14em
63 uppercase: true
64charts:
65 variant: "thin-bars"
66 stroke_width: 1.25
67 fill_opacity: 0
68 gridlines: false
69 bar_gap: 10px
70 highlight: single
71 dot_marker: false
72fonts_url: "https://fonts.googleapis.com/css2?family=Fraunces:ital,opsz,wght@0,9..144,400;0,9..144,500;1,9..144,400&family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap"
73dependencies: ["lucide-react"]
74---
75
76# Bronze Foundry
77
78## AI Build Instructions
79
80> **Read this section before writing any code.** The rules below
81> are non-negotiable. Every value used in the UI must come from this
82> file's frontmatter — never substitute, approximate, or invent new
83> colors, fonts, radii, or shadows. If a value is missing, ask the
84> user before adding one.
85
86### 1 · Your role
87
88You are building UI for a project that has adopted **Bronze Foundry** as its
89design system. Treat `DESIGN.md` as the single source of truth.
90Your job is to translate the user's product requirements into
91components and pages that look like they were designed by the same
92person who authored this file.
93
94### 2 · Token compliance
95
96- Pull every color, font family, radius, shadow, and spacing value
97 from the frontmatter at the top of this file.
98- Use semantic roles (e.g. `primary`, `accent`, `muted`) — never
99 hard-code hex values that bypass the system.
100- When a token can be expressed as a CSS variable, declare it once
101 in your global stylesheet and reference it everywhere downstream.
102- The Google Fonts `<link>` is provided in the Typography section.
103 Add it to `<head>` before any component renders.
104
105### 3 · Component recipes
106
107Use these recipes verbatim when building the corresponding component.
108
109#### Buttons
110
111Four variants are defined. Pick one — never blend variants or invent a fifth.
112
113- **Primary** — sharp shape, bg `#1a1410`, text `#e6d3b5`, padding `12px 24px`, weight `600`, uppercased.
114- **Secondary** — sharp shape, bg `rgba(26,20,16,0.04)`, text `#1a1410`, border `1px solid rgba(26,20,16,0.20)`, padding `12px 24px`, weight `600`, uppercased.
115- **Outline** — sharp shape, text `#1a1410`, border `1px solid rgba(26,20,16,0.16)`, padding `12px 24px`, weight `600`, uppercased.
116- **Ghost** — sharp shape, text `#6e5e4c`, padding `12px 16px`, weight `600`, uppercased.
117
118Reach for **primary** as the single dominant CTA per screen.
119**Secondary** for the supporting action. **Outline** for tertiary
120actions in toolbars. **Ghost** for inline links and table actions.
121
122#### Cards
123
124- Background: `#e6d3b5`
125- Border: `1px solid rgba(26,20,16,0.14)`
126- Shadow: `rgba(26,20,16,0.06) 0 1px 2px, inset 0 1px 0 rgba(255,240,215,0.40)`
127- Radius: `radius.lg` (`3px`)
128- Internal padding: `20px` for compact cards, `24–28px` for content cards.
129
130#### Tabs
131
132Variant: `underline`. Flat row of labels. Active tab gets a 2px underline in the accent color — no fill.
133
134#### Charts
135
136- Bar/line variant: `thin-bars`
137- No gridlines — let the bars/lines carry the data.
138- Highlight strategy: `single` — emphasize a single bar/point per chart.
139
140#### Typography pairings
141
142- **Display (`Fraunces`)** — h1, h2, hero headlines, brand wordmarks.
143- **Body (`Inter`)** — paragraphs, labels, button text, form inputs.
144- **Mono (`JetBrains Mono`)** — code, eyebrows, metadata, numerals in tables.
145
146### 4 · Hard constraints
147
148Never do any of the following without explicit instruction from the user:
149
150- Introduce a new color, font, radius, or shadow that isn't declared above.
151- Mix this system with another (e.g. don't paste in Material or Bootstrap defaults).
152- Use generic gradient defaults (purple→blue, peach→pink) — they break the system's voice.
153- Reach for emoji icons. Use a consistent icon library and size icons in line with body type.
154- Add motion that exceeds the system's restraint — keep transitions short (≤200ms) and subtle.
155
156### 5 · Before you finish — verify
157
158Run through this checklist for every screen you produce:
159
160- [ ] Every color used appears in the Colors table above.
161- [ ] Headlines use the display font; body copy uses the body font.
162- [ ] Buttons match one of the declared variants exactly (shape, padding, weight).
163- [ ] Border-radius values come from `radius.sm` / `radius.md` / `radius.lg` / `radius.pill`.
164- [ ] Cards and dividers use the declared border + shadow tokens.
165- [ ] No values were invented; if you needed something missing, you stopped and asked.
166
167---
168
169## 1. Atmosphere
170
171Bronze Foundry is a workshop interface cast in brushed bronze. The page surface is warm bronze `#e6d3b5` with a subtle vertical `linear-gradient(180deg, #ecdcc1 0%, #e6d3b5 50%, #d8c4a8 100%)` — a 5% lightness sheen that reads as light hitting brushed metal. Display headlines run in Fraunces 400 at 112px — the soft-modern serif inscribed into the bronze. Body sits in Inter at 17px on a 1.65 leading. UI labels in Inter 600 with 0.14em uppercase tracking — the stamped-into-the-metal voice. The single accent is patina green `#3d5e4a` that appears only on verified-cast marks, the primary CTA, and the active step in a process flow — the oxidation that signals authority on real bronze.
172
173The discipline is in the surface treatment: every elevated card gets an `inset 0 1px 0 rgba(255,240,215,0.40)` highlight — the thin top edge of light that distinguishes a brushed-metal panel from a flat tinted card.
174
175**Signature moves**
176- Brushed-bronze tonal page `#ecdcc1 → #e6d3b5 → #d8c4a8` — vertical sheen, 5% lightness shift
177- Fraunces 400 at 112px for display — soft-modern serif inscribed into bronze
178- Patina green `#3d5e4a` exclusively on verified-cast marks + primary CTA + active step
179- Inset 1px highlight at 40% warm-white on every card — the brushed-metal top edge
180- Sharp 1-3px corners — machined precision, never pill, never rounded
181- 0.14em uppercase tracking on UI labels — stamped-into-the-metal voice
182
183## 2. Palette
184
185### Surfaces
186- **Bronze Top** `#ecdcc1` — page top highlight
187- **Bronze** `#e6d3b5` — page body (the brushed metal mid-tone)
188- **Bronze Lift** `#d8c4a8` — page bottom shadow, secondary surfaces
189- **Hairline** `rgba(26,20,16,0.14)` — every divider
190
191### Ink
192- **Ink** `#1a1410` — text, headings, primary CTA fill (warm near-black)
193- **Ink 50** `#6e5e4c` — secondary text, mono labels
194
195### Accent
196- **Patina** `#3d5e4a` — verified-cast marks, primary CTA accent stripe, active step
197- **Patina Soft** `rgba(61,94,74,0.10)` — focus ring, hovered step
198
199## 3. Typography
200
201| Role | Font | Size | Weight | Leading | Tracking |
202|------|------|------|--------|---------|----------|
203| Hero | Fraunces | 112px | 400 | 0.94 | -0.04em |
204| H1 | Fraunces | 64px | 400 | 1.05 | -0.025em |
205| H2 | Fraunces | 30px | 500 | 1.22 | -0.012em |
206| Pull Quote | Fraunces (italic) | 26px | 400 | 1.4 | -0.008em |
207| Body | Inter | 17px | 400 | 1.65 | -0.005em |
208| UI / Button | Inter | 13px | 600 | 1.4 | 0.14em uppercase |
209| Caption | JetBrains Mono | 11px | 500 | 1.0 | 0.10em uppercase |
210| Cast Number | JetBrains Mono | 13px | 500 | 1.0 | 0.04em tabular-nums |
211
212Fraunces 400 only — the soft-modern proportion needs to stay light to sit on the warm bronze without going muddy.
213
214## 4. Buttons
215
216### Primary (Ink — Engage)
217```css
218background: #1a1410;
219color: #e6d3b5;
220padding: 12px 24px;
221border-radius: 2px;
222text-transform: uppercase;
223letter-spacing: 0.14em;
224font-weight: 600;
225```
226
227The ink button on bronze reads as a stamped iron tag riveted to the brushed surface. The 0.14em tracking is the stamped-into-the-metal voice.
228
229### Secondary (Bronze Wash)
230- `rgba(26,20,16,0.04)` background, 1px hairline at 20% ink — same sharp 2px corners
231
232### Outline & Ghost
233- Outline: transparent, 1px hairline at 16% ink
234- Ghost: no border, ink-50 uppercase
235
236## 5. Cards
237
238```css
239background: #e6d3b5;
240border: 1px solid rgba(26,20,16,0.14);
241border-radius: 3px;
242box-shadow: rgba(26,20,16,0.06) 0 1px 2px, inset 0 1px 0 rgba(255,240,215,0.40);
243```
244
245The `inset 0 1px 0` highlight at 40% warm-white is the entire trick — that thin top edge of light is what makes the card read as a brushed-metal panel rather than a flat tinted rectangle. Without it, the card just looks beige.
246
247## 6. Charts
248
249Thin precise bars (3px wide, 10px gap). One bar in patina, others in 22% ink. NO gridlines. Y-axis labels in JetBrains Mono uppercase 11px. Charts read as inscribed exhibits on the bronze plate.
250
251## 7. Tabs
252
253Underline 1.5px in patina for the active state. Inactive tabs are ink-50 in Inter 600 uppercase. Tabs sit on a 1px hairline baseline.
254
255## 8. Spacing
256
257- Base 8px
258- Scale: `8, 16, 24, 32, 48, 64, 96, 128, 200`
259- Section padding: 128px desktop, 64px mobile
260
261## 9. Do's & don'ts
262
263✅ **Do**
264- Use the brushed-bronze vertical gradient as the page surface — flat bronze reads as beige
265- Use the `inset 0 1px 0 rgba(255,240,215,0.40)` highlight on every card — that's the brushed-metal edge
266- Reserve patina green for verified marks + primary CTA + active step exclusively
267- Use Fraunces 400 only — bold breaks the soft-modern proportion on warm metal
268
269❌ **Don't**
270- Use flat single-tone bronze — the vertical sheen IS the metal
271- Use a second accent — patina alone, on three specific surfaces
272- Use rounded or pill corners — sharp 2px is the machined-precision voice
273- Use bright gold or copper accents — the only accent is muted patina-green oxidation
274
275---
276
277## Tokens
278
279> Generated from the same source the live preview renders from.
280> Treat the values below as the contract — never substitute approximations.
281
282### Colors
283
284| Role | Value |
285|-----------|-------|
286| primary | `#1a1410` |
287| secondary | `#6e5e4c` |
288| tertiary | `#1a1410` |
289| neutral | `#d8c4a8` |
290| surface | `#e6d3b5` |
291
292### Typography
293
294- **Display:** Fraunces
295- **Body:** Inter
296- **Mono:** JetBrains Mono
297
298| Role | size / leading / weight / tracking |
299|------|------------------------------------|
300| Hero | 7rem / 0.94 / 400 / -0.04em |
301| H1 | 4rem / 1.05 / 400 / -0.025em |
302| H2 | 1.875rem / 1.22 / 500 / -0.012em |
303| Body | 1.0625rem / 1.65 / 400 / -0.005em |
304
305### Radius
306
307- sm: `1px`
308- md: `2px`
309- lg: `3px`
310- pill: `9999px`
311
312### Shadows
313
314- **card:** `rgba(26,20,16,0.06) 0 1px 2px, inset 0 1px 0 rgba(255,240,215,0.40)`
315- **button:** `none`
316
317### Borders
318
319- **card:** `1px solid rgba(26,20,16,0.14)`
320- **divider:** `rgba(26,20,16,0.18)`
321
322### Buttons
323
324Four variants, each fully tokenized. The preview renders from these exact values.
325
326#### Primary
327
328| Property | Value |
329|----------|-------|
330| shape | `sharp` |
331| background | `#1a1410` |
332| color | `#e6d3b5` |
333| border | `none` |
334| padding | `12px 24px` |
335| fontWeight | `600` |
336| fontSize | `0.8125rem` |
337| tracking | `0.14em` |
338| uppercase | `true` |
339
340#### Secondary
341
342| Property | Value |
343|----------|-------|
344| shape | `sharp` |
345| background | `rgba(26,20,16,0.04)` |
346| color | `#1a1410` |
347| border | `1px solid rgba(26,20,16,0.20)` |
348| padding | `12px 24px` |
349| fontWeight | `600` |
350| fontSize | `0.8125rem` |
351| tracking | `0.14em` |
352| uppercase | `true` |
353
354#### Outline
355
356| Property | Value |
357|----------|-------|
358| shape | `sharp` |
359| background | `transparent` |
360| color | `#1a1410` |
361| border | `1px solid rgba(26,20,16,0.16)` |
362| padding | `12px 24px` |
363| fontWeight | `600` |
364| fontSize | `0.8125rem` |
365| tracking | `0.14em` |
366| uppercase | `true` |
367
368#### Ghost
369
370| Property | Value |
371|----------|-------|
372| shape | `sharp` |
373| background | `transparent` |
374| color | `#6e5e4c` |
375| border | `none` |
376| padding | `12px 16px` |
377| fontWeight | `600` |
378| fontSize | `0.8125rem` |
379| tracking | `0.14em` |
380| uppercase | `true` |
381
382### Charts
383
384| Property | Value |
385|----------|-------|
386| variant | `thin-bars` |
387| strokeWidth | `1.25` |
388| fillOpacity | `0` |
389| gridlines | `false` |
390| barGap | `10px` |
391| highlight | `single` |
392| dotMarker | `false` |
393
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=Fraunces:ital,opsz,wght@0,9..144,400;0,9..144,500;1,9..144,400&family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap" />

Install dependencies

bash
npm install lucide-react

Tailwind config

js
// tailwind.config.js
export default {
theme: {
extend: {
fontFamily: {
display: ['"Fraunces"', 'serif'],
sans: ['"Inter"', 'sans-serif'],
mono: ['"JetBrains Mono"', 'monospace'],
},
colors: {
primary: '#1a1410',
secondary: '#6e5e4c',
accent: '#1a1410',
neutral: '#d8c4a8',
surface: '#e6d3b5',
},
borderRadius: {
sm: '1px',
md: '2px',
lg: '3px',
},
},
},
};
05 · Keep browsing

Try another system.