# DESIGN.md: Postman-style design system

Measured from https://www.postman.com/ on 2026-10-15 by PikSpec (https://www.pikspec.com). An independent measurement of the rendered page, not Postman's official design system, and not affiliated with Postman.

Use it to build your own product in this design language: put this file in your project root and tell your AI tool (Claude Code, Cursor, Codex, Lovable, v0) to follow DESIGN.md. Never use the original's name, logo, copy or images; licensed fonts are replaced with the closest free Google Fonts.

To capture any other page, or get a ready project for your tool: https://www.pikspec.com/build-with-ai

HOW IT SHOULD LOOK
Build it in the design language of postman.com, measured from the live site: it should feel designed by the same team as postman.com — the same temperament, colour, type and density — for a different product. Never use postman.com's name, logo, words or images.

Stack: use the one your project already has. Starting fresh: React + Vite + TypeScript + Tailwind CSS v4, with no UI kit (no shadcn/ui, MUI or Chakra) — their defaults would override this system. In a chat that shows one file (an artifact or canvas), build one HTML file instead, with the tokens below in its <style> block.
Use every value exactly as written. Do not round, rename, approximate or substitute a colour, size, radius, shadow or easing (fonts: see section 1). Anything not listed here does not exist in this system.

THE WEBSITE THIS SYSTEM COMES FROM
- Reference page: https://www.postman.com/ — "www.postman.com" (home page).
- Page frame: a top navigation bar, a persistent side panel beside the content and a footer. This is a tool- or docs-style layout, not a marketing page of stacked full-width bands.
- Content is grouped in cards (38 on the page). Keep cards for grouped content only, not for every section.
- It uses 8 images including 2 videos, 2 of them large. Large, real product imagery is part of the look — leave clearly labelled image slots at those sizes rather than stock photos or abstract 3D shapes.
- Interaction: 139 buttons on one page.
- The page runs about 12 screens long at 1440px wide.
- Density is moderate.

HOW IT LOOKS (WHAT MAKES IT LOOK LIKE ITSELF, BEYOND THE VALUES)
- Almost entirely neutral: 95% of the page is painted in #0E0704 and #141312; #FF6C37 (4.1%) fills whole sections.
- #FFE0C4 is an accent: 0.6% of the page, used for text and lines only. Don't fill large areas with it.
- #FFDEBE is an accent: 0.2% of the page, used for lines only. Don't fill large areas with it.
- The largest type (63.36px gtStandard) is medium weight, not bold (500), tracked to -0.02em.
- Balanced: text covers 12% of the page. Sections sit about 150px apart.
- Structure comes from thin grid lines, not from shadows or filled cards.
- Share of the painted page: #0E0704 40.1% (dominant, backgrounds); #141312 27.5% (dominant, backgrounds); #100218 8.4% (supporting, backgrounds); #0C0B0A 7.4% (supporting, backgrounds); #FF6C37 4.1% (supporting, backgrounds); #FFF0DE 3.5% (supporting, text and drawings); #0B0603 1.8% (detail, backgrounds); #CDBFAD 1.6% (supporting, text). Keep accents at these proportions; do not promote them to fills.
- Hairline grid: 1px lines in #2B2A29 run both across and down the page (150 across, 54 down), dividing it into cells instead of cards.
- Illustrations: 3 large illustrations in filled shapes, in #212121, #FFF0DE and #19120D.
- Dashed lines: Dashed lines in #756758, drawn as routes or paths in the illustrations.
- Small marks: 5 small decorative marks (dots, crosses or ticks under 16px) in #FFF0DE and #0BBD81, placed at corners and edges.
- Large images: Photographs, video or raster artwork cover about 42% of the page.
- Type as set (size, weight and tracking measured together; use these pairs): 63.36px weight 500 tracking -0.02em; 36px weight 500 tracking -0.02em; 27px weight 500 tracking -0.01em; 20px weight 500 tracking -0.01em; 19px weight 400 tracking -0.008em; 18px weight 600.

1. DESIGN TOKENS — PASTE INTO YOUR GLOBAL CSS
Allowed colours, with how the original uses each. Use no other colour, including in hover states:
- #0E0704 — 40.1% · backgrounds (var(--color-0e0704))
- #141312 — 27.5% · backgrounds (var(--color-141312))
- #100218 — 8.4% · backgrounds (var(--color-background))
- #0C0B0A — 7.4% · backgrounds (var(--color-0c0b0a))
- #FF6C37 — 4.1% · backgrounds (var(--color-ff6c37))
- #FFF0DE — 3.5% · text, drawings (var(--color-text))
- #0B0603 — 1.8% · backgrounds (var(--color-0b0603))
- #CDBFAD — 1.6% · text (var(--color-text-muted))
- #060402 — 1.2% · backgrounds (var(--color-060402))
- #BAB9B9 — 0.8% · text
- #2B2A29 — hairlines and grid lines
- #C3B8AB — line drawings
- #212121 — line drawings (var(--color-surface))
- #4A4139 — line drawings
- #7D746A — line drawings
- #756758 — line drawings
- #0BBD81 — small marks
- #191817 — Action (var(--color-action))
- #63C174 — Positive (var(--color-positive))
- #FF8980 — Negative (var(--color-negative))
- #FF8E64 — Warning (var(--color-warning))
Fonts — put these first in your global CSS (one import per font, so one that fails cannot stop the others):
```css
@import url("https://fonts.googleapis.com/css2?family=Inter:wght@400;600&display=swap");
@import url("https://fonts.googleapis.com/css2?family=inter:wght@400;500;600&display=swap");
@import url("https://fonts.googleapis.com/css2?family=ibm+Plex+Mono:wght@400;500;600&display=swap");
@import url("https://fonts.googleapis.com/css2?family=Figtree:wght@500&display=swap");
```
Font: postman.com uses gtStandard (display) — its own licensed face, not available to download. This kit uses Figtree for display, the closest free match, already in the tokens. If you own the original, add it with @font-face and it is used first; to use another font, change the --font-* variables.
Inter, inter and ibmPlexMono (Google's ibm Plex Mono) are on Google Fonts and loaded from there.
Keep every size, weight, line height and tracking exactly as listed whichever font renders.
```css
:root {
  --color-background: #100218; /* Background */
  --color-surface: #212121; /* Surface */
  --color-text: #FFF0DE; /* Text */
  --color-text-muted: #CDBFAD; /* Text muted */
  --color-border: #212121; /* Border */
  --color-action: #191817; /* Action */
  --color-on-action: #FFF0DE; /* On action */
  --color-positive: #63C174; /* Positive */
  --color-negative: #FF8980; /* Negative */
  --color-warning: #FF8E64; /* Warning */
  --color-0e0704: #0E0704; /* 40.1% of the page, as fills */
  --color-141312: #141312; /* 27.5% of the page, as fills */
  --color-0c0b0a: #0C0B0A; /* 7.4% of the page, as fills */
  --color-ff6c37: #FF6C37; /* 4.1% of the page, as fills */
  --color-0b0603: #0B0603; /* 1.8% of the page, as fills */
  --color-060402: #060402; /* 1.2% of the page, as fills */
  --font-body: "Inter", sans-serif; /* Inter */
  --font-interface: inter, sans-serif; /* inter */
  --font-code: "ibmPlexMono", "ibm Plex Mono", monospace; /* ibmPlexMono on the site; ibm Plex Mono renders */
  --font-display: "gtStandard", "Figtree", sans-serif; /* gtStandard on the site; Figtree renders */
  --type-display-large: 63.36px; /* Display Large, weight 500 */
  --type-display-large-leading: 64.6272px;
  --type-display-large-tracking: -0.02em;
  --type-display-small: 36px; /* Display Small, weight 500 */
  --type-display-small-leading: 43.88px;
  --type-display-small-tracking: -0.02em;
  --type-headline: 27px; /* Headline, weight 500 */
  --type-headline-leading: 34.24px;
  --type-headline-tracking: -0.01em;
  --type-title-large: 20px; /* Title Large, weight 500 */
  --type-title-large-leading: 24px;
  --type-title-large-tracking: -0.01em;
  --type-title-medium: 19px; /* Title Medium, weight 400 */
  --type-title-medium-leading: 30.4px;
  --type-title-medium-tracking: -0.008em;
  --type-title-small: 18px; /* Title Small, weight 600 */
  --type-title-small-leading: 18px;
  --type-body-large: 16px; /* Body Large, weight 400 */
  --type-body-large-leading: 24px;
  --type-body-large-tracking: -0.01em;
  --type-body-medium: 15px; /* Body Medium, weight 400 */
  --type-body-medium-leading: 23.25px;
  --type-body-medium-tracking: -0.011em;
  --type-body-small: 14px; /* Body Small, weight 400 */
  --type-body-small-leading: 23.8px;
  --type-body-small-tracking: -0.011em;
  --type-label-large: 13px; /* Label Large, weight 600 */
  --type-label-large-leading: 16px;
  --type-label-medium: 12px; /* Label Medium, weight 400 */
  --type-label-medium-leading: 16px;
  --type-label-small: 11px; /* Label Small, weight 400 */
  --type-label-small-leading: 16px;
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-7: 28px;
  --space-8: 32px;
  --space-9: 36px;
  --space-10: 40px;
  --space-12: 48px;
  --space-13: 52px;
  --space-14: 56px;
  --space-15: 60px;
  --space-18: 72px;
  --space-19: 76px;
  --space-20: 80px;
  --space-24: 96px;
  --space-27: 108px;
  --space-30: 120px;
  --radius-sm: 2.5px;
  --radius-md: 4px;
  --radius-lg: 4.5px;
  --radius-xl: 5px;
  --radius-2xl: 6px;
  --radius-3xl: 8px;
  --radius-full: 9999px;
  --radius-12: 12px; /* component radius */
  --elevation-1: rgb(14, 7, 4) 1px 0px 0px 0px inset;
  --elevation-2: rgb(243, 127, 254) 0px 0px 0px 1px inset;
  --elevation-3: rgb(25, 140, 247) 0px 0px 0px 1px inset;
  --elevation-4: rgb(29, 163, 43) 0px 0px 0px 1px inset;
  --elevation-5: rgb(255, 169, 10) 0px 0px 0px 1px inset;
  --elevation-6: rgb(255, 108, 55) 0px 0px 0px 1px inset;
  --elevation-7: rgba(0, 0, 0, 0) 0px 0px 0px 0px, rgba(0, 0, 0, 0) 0px 0px 0px 0px, rgba(0, 0, 0, 0) 0px 0px 0px 0px, rgba(0, 0, 0, 0) 0px 0px 0px 0px, rgba(0, 0, 0, 0.2) 0px 2px 8px 0px;
  --elevation-8: rgb(179, 135, 245) 0px 4px 24px 0px;
  --elevation-9: rgba(255, 180, 115, 0.22) 0px 0px 22px 0px, rgba(255, 180, 115, 0.14) 0px 0px 22px 0px inset;
  --elevation-10: rgba(14, 7, 4, 0.5) 0px 16px 40px 0px, rgba(255, 224, 196, 0.06) 0px 1px 0px 0px inset;
  --duration-1: 0.08s;
  --duration-2: 0.09s;
  --duration-3: 0.1s;
  --duration-4: 0.12s;
  --duration-5: 0.15s;
  --duration-6: 0.16s;
  --duration-7: 0.2s;
  --duration-8: 0.22s;
  --duration-9: 0.3s;
  --duration-10: 0.48s;
  --duration-11: 0.5s;
  --duration-12: 0.6s;
  --ease-1: cubic-bezier(0.4, 0, 0.2, 1);
  --ease-2: ease-in-out;
  --ease-3: cubic-bezier(0, 0, 0.2, 1);
  --ease-4: cubic-bezier(0.16, 1, 0.32, 1);
  --ease-5: ease-out;
  --ease-6: cubic-bezier(0.2, 0.7, 0.2, 1);
}
```
Tailwind CSS v4 (the default for new projects): put this after `@import "tailwindcss";`. It removes Tailwind's own palette, so only these colours exist as utilities:
```css
@theme {
  --color-*: initial;
  --color-background: #100218;
  --color-surface: #212121;
  --color-text: #FFF0DE;
  --color-text-muted: #CDBFAD;
  --color-border: #212121;
  --color-action: #191817;
  --color-on-action: #FFF0DE;
  --color-positive: #63C174;
  --color-negative: #FF8980;
  --color-warning: #FF8E64;
  --color-0e0704: #0E0704;
  --color-141312: #141312;
  --color-0c0b0a: #0C0B0A;
  --color-ff6c37: #FF6C37;
  --color-0b0603: #0B0603;
  --color-060402: #060402;
  --font-body: "Inter", sans-serif;
  --font-interface: inter, sans-serif;
  --font-code: "ibmPlexMono", "ibm Plex Mono", monospace;
  --font-display: "gtStandard", "Figtree", sans-serif;
  --text-display-large: 63.36px;
  --text-display-large--line-height: 64.6272px;
  --text-display-large--letter-spacing: -0.02em;
  --text-display-small: 36px;
  --text-display-small--line-height: 43.88px;
  --text-display-small--letter-spacing: -0.02em;
  --text-headline: 27px;
  --text-headline--line-height: 34.24px;
  --text-headline--letter-spacing: -0.01em;
  --text-title-large: 20px;
  --text-title-large--line-height: 24px;
  --text-title-large--letter-spacing: -0.01em;
  --text-title-medium: 19px;
  --text-title-medium--line-height: 30.4px;
  --text-title-medium--letter-spacing: -0.008em;
  --text-title-small: 18px;
  --text-title-small--line-height: 18px;
  --text-body-large: 16px;
  --text-body-large--line-height: 24px;
  --text-body-large--letter-spacing: -0.01em;
  --text-body-medium: 15px;
  --text-body-medium--line-height: 23.25px;
  --text-body-medium--letter-spacing: -0.011em;
  --text-body-small: 14px;
  --text-body-small--line-height: 23.8px;
  --text-body-small--letter-spacing: -0.011em;
  --text-label-large: 13px;
  --text-label-large--line-height: 16px;
  --text-label-medium: 12px;
  --text-label-medium--line-height: 16px;
  --text-label-small: 11px;
  --text-label-small--line-height: 16px;
  --radius-sm: 2.5px;
  --radius-md: 4px;
  --radius-lg: 4.5px;
  --radius-xl: 5px;
  --radius-2xl: 6px;
  --radius-3xl: 8px;
  --radius-full: 9999px;
  --shadow-e1: rgb(14, 7, 4) 1px 0px 0px 0px inset;
  --shadow-e2: rgb(243, 127, 254) 0px 0px 0px 1px inset;
  --shadow-e3: rgb(25, 140, 247) 0px 0px 0px 1px inset;
  --shadow-e4: rgb(29, 163, 43) 0px 0px 0px 1px inset;
  --shadow-e5: rgb(255, 169, 10) 0px 0px 0px 1px inset;
  --shadow-e6: rgb(255, 108, 55) 0px 0px 0px 1px inset;
  --shadow-e7: rgba(0, 0, 0, 0) 0px 0px 0px 0px, rgba(0, 0, 0, 0) 0px 0px 0px 0px, rgba(0, 0, 0, 0) 0px 0px 0px 0px, rgba(0, 0, 0, 0) 0px 0px 0px 0px, rgba(0, 0, 0, 0.2) 0px 2px 8px 0px;
  --shadow-e8: rgb(179, 135, 245) 0px 4px 24px 0px;
  --shadow-e9: rgba(255, 180, 115, 0.22) 0px 0px 22px 0px, rgba(255, 180, 115, 0.14) 0px 0px 22px 0px inset;
  --shadow-e10: rgba(14, 7, 4, 0.5) 0px 16px 40px 0px, rgba(255, 224, 196, 0.06) 0px 1px 0px 0px inset;
  --ease-1: cubic-bezier(0.4, 0, 0.2, 1);
  --ease-2: ease-in-out;
  --ease-3: cubic-bezier(0, 0, 0.2, 1);
  --ease-4: cubic-bezier(0.16, 1, 0.32, 1);
  --ease-5: ease-out;
  --ease-6: cubic-bezier(0.2, 0.7, 0.2, 1);
}
```
Tailwind CSS v3 only: extend the theme with these instead, and use no other palette:
```js
// tailwind.config — theme.extend
{
  colors: { "background": "var(--color-background)", "surface": "var(--color-surface)", "text": "var(--color-text)", "text-muted": "var(--color-text-muted)", "border": "var(--color-border)", "action": "var(--color-action)", "on-action": "var(--color-on-action)", "positive": "var(--color-positive)", "negative": "var(--color-negative)", "warning": "var(--color-warning)" },
  fontFamily: { "body": ["var(--font-body)"], "interface": ["var(--font-interface)"], "code": ["var(--font-code)"], "display": ["var(--font-display)"] },
  borderRadius: { "sm": "var(--radius-sm)", "md": "var(--radius-md)", "lg": "var(--radius-lg)", "xl": "var(--radius-xl)", "2xl": "var(--radius-2xl)", "3xl": "var(--radius-3xl)", "full": "var(--radius-full)" },
  boxShadow: { "e1": "var(--elevation-1)", "e2": "var(--elevation-2)", "e3": "var(--elevation-3)", "e4": "var(--elevation-4)", "e5": "var(--elevation-5)", "e6": "var(--elevation-6)", "e7": "var(--elevation-7)", "e8": "var(--elevation-8)", "e9": "var(--elevation-9)", "e10": "var(--elevation-10)" },
}
```

2. BASE STYLES
```css
html { background: var(--color-background); }
body { margin: 0; font-family: var(--font-body); font-size: var(--type-body-large); line-height: var(--type-body-large-leading); color: var(--color-text); -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
h1, h2, h3 { font-family: var(--font-display); margin: 0; }
a { color: inherit; }
:focus-visible { outline: 2px solid var(--color-action); outline-offset: 2px; }
```

3. COMPONENTS — MATCH THESE EXACTLY
```css
.card { /* Default */
  background: var(--color-141312);
  border: 1px solid #2B2A29;
  border-radius: var(--radius-md);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: var(--type-label-small);
  font-weight: 400;
  line-height: 16px;
}
.card-2 { /* Alternative 1 */
  background: var(--color-141312);
  border: 1px solid #2B2A29;
  border-radius: var(--radius-3xl);
  min-height: 221px;
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: var(--type-label-small);
  font-weight: 400;
  line-height: 16px;
}
.card-3 { /* Alternative 2 */
  background: var(--color-0e0704);
  border: 1px solid #FFE0C4;
  border-radius: var(--radius-full);
  min-height: 56px;
  font-family: "system-ui";
  font-size: var(--type-body-large);
  font-weight: 400;
  line-height: 18.4px;
}
.link { /* Inline */
  background: transparent;
  color: var(--color-text-muted);
  font-family: var(--font-interface);
  font-size: var(--type-body-large);
  font-weight: 400;
  line-height: 18.4px;
  /* recorded states: hover, focus */
}
.link-2 { /* Inline 2 */
  background: transparent;
  padding: 5px 0px 5px 0px;
  min-height: 34px;
  font-family: var(--font-interface);
  font-size: var(--type-body-small);
  font-weight: 400;
  line-height: 23.8px;
  /* recorded states: hover */
}
.link-3 { /* Inline 3 */
  background: transparent;
  min-height: 72px;
  font-family: var(--font-interface);
  font-size: var(--type-body-large);
  font-weight: 400;
  line-height: 18.4px;
  /* recorded states: hover, focus */
}
.button { /* Secondary */
  background: var(--color-action);
  border-radius: var(--radius-md);
  padding: 0px 8px 0px 6px;
  min-height: 26px;
  color: var(--color-on-action);
  font-family: var(--font-body);
  font-size: var(--type-label-small);
  font-weight: 600;
  line-height: 16px;
  /* recorded states: hover */
}
.button-3 { /* Secondary 3 */
  background: var(--color-0b0603);
  border: 1px solid #FFE0C4;
  border-radius: var(--radius-full);
  padding: 11px 11px 11px 11px;
  min-height: 44px;
  color: var(--color-text);
  font-family: "system-ui";
  font-size: var(--type-body-large);
  font-weight: 400;
  line-height: 18.4px;
  /* recorded states: hover, focus-visible */
}
```
Where a component lists recorded states, write those states using only the colours above; the capture saw that the state exists, not its values. Never invent a state colour.

4. PAGE COMPOSITION
- Dark interface on #100218. Keep that ground; do not add a light mode or alternate section backgrounds the system does not have.
- The opening screen carries a large image or video behind or across the heading. Leave a [content: hero image or video] slot there, at least half the screen wide; the opening is not text alone.
- #191817 is the action colour. Fill the primary action with it and little else — at most one #191817-filled element per screen; other accents keep to the uses listed above.
- Type: Inter for body; inter for interface; ibm Plex Mono for code; Figtree (standing in for gtStandard) for display. Hierarchy comes from size and weight, not colour or decoration.
- Everything sits on a 4px grid.
- Corner radii are 2.5px, 4px, 4.5px, 5px, 6px, 8px, fully round (pill) — nothing else.
- Body text uses Inter at around 15px, weights 400, 600.
- Headings use gtStandard; the largest heading is 63.36px.
- Primary buttons are #191817, 4px radius, weight 600.
- Cards use 10px corners with a soft shadow.
- Corner radii in use: 5px, 9999px (pill), 999px, 4px, 12px.

HOW THE ORIGINAL PACES ITS PAGE (BORROW THE RHYTHM — THE OPENING, THE COLOURED BANDS, THE CARD GRIDS — NOT THE LIST; BUILD THE SECTIONS YOUR PRODUCT NEEDS)
1. Hero — 1202px tall, split 9 / 3, 387px gap, left-aligned 63.36px heading (weight 500), artwork behind the content, on #100218.
2. Text — 160px tall, a strip of 24 small items (logos, links or icons), artwork on the left, on #0E0704.
3. Split — 1087px tall, split 7 / 5, 56px gap, left-aligned 36px heading (weight 500), on #0E0704.
4. Text — 339px tall, left-aligned 36px heading (weight 500), on #0E0704.
5. Split — 623px tall, split 7 / 5, left-aligned 19px heading (weight 400), artwork on the right, on #0E0704.
6. Cards — 1169px tall, 3 equal columns, 43px gap, left-aligned 36px heading (weight 500), artwork centred, on #0E0704.
7. Cards — 647px tall, 4 equal columns, 16px gap, left-aligned 36px heading (weight 500), on #0E0704.
8. Split — 1022px tall, split 2 / 10, left-aligned 36px heading (weight 500), artwork on the left, on #0E0704.
9. Split — 517px tall, split 9 / 3, 538px gap, centred 27px heading (weight 500).
10. Footer — 668px tall, 6 equal columns, 40px gap, left-aligned 16px heading (weight 600), on #0E0704.
- Content sits in a 1200px container, 120px from the edge at 1440px wide.
- A 54px header stays fixed at the top.
- The hero is 1202px (1.3 screens): split 9 / 3, 387px gap, left-aligned 63.36px heading (weight 500), artwork behind the content, on #100218.
- Column splits on a 12-column grid: 9/3 (2×), 7/5 (2×), thirds, quarters; gaps of 43px.
- Headings align left (8 of 9 sections); centre only the occasional statement.
- Sections change background 3 times, between #100218, #0E0704: colour comes in full-width bands, not in boxes.
- A typical section is about 647px tall.

COPY SHAPE (MATCH THE LENGTH AND CASE; WRITE YOUR OWN WORDS)
- The main heading is 4 words long.
- Section headings are short: typically 3 words.
- Headings are in sentence case (only the first word capitalised).
- The page describes itself in about 12 words; keep your intro paragraph to about that length.

5. MOTION
Interactive elements change colour, background, border and opacity with the measured timing. Animate nothing else.
```css
a, button, [role="button"], input { transition: color var(--duration-1) var(--ease-1), background-color var(--duration-1) var(--ease-1), border-color var(--duration-1) var(--ease-1), opacity var(--duration-1) var(--ease-1); }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; }
}
```
No scroll-triggered fade-ins, parallax, typewriter text or bouncing elements.

6. RESPONSIVE
- The design was measured at 1440px wide. Lay it out for that width first, then let it reflow down to 360px.
- Content sits in a column at most 1200px wide, centred, with var(--space-4) (16px) side padding on small screens.
- The largest heading scales fluidly: font-size: clamp(36px, 4.4vw, 63.36px). Every other size stays fixed.
- Break on composition, not device names: a row of columns drops a column when any column would be narrower than 240px; side-by-side splits stack when either side would be narrower than 320px.
- Spacing steps never change between sizes; use smaller steps from the same list where space is tight.
- On touch screens, every link and button has a hit area of at least 44 × 44px without changing its drawn size.

7. ACCESSIBILITY
- Text pairs that pass for body copy: Text on Background (18:1), Text muted on Background (11.2:1), Positive on Background (9:1), Negative on Background (8.8:1), Text on Surface (14.4:1), Text muted on Surface (8.9:1), Positive on Surface (7.2:1), Negative on Surface (7:1) and On action on Action (15.8:1).
- Use no other text-on-background pairing.
- One h1 per page, headings in order, landmarks (header, nav, main, footer), real buttons and links, a label on every field, alt text on every image, an aria-label on icon-only buttons.
- Every interactive element shows the :focus-visible outline above.

8. DO NOT (THESE ARE WHAT MAKE AI-BUILT SITES LOOK GENERIC)
- No gradients: not in backgrounds, text, buttons or borders. (No gradient was measured.)
- Only these colours: #0E0704, #141312, #100218, #0C0B0A, #FF6C37, #FFF0DE, #0B0603, #CDBFAD, #060402, #BAB9B9, #2B2A29, #C3B8AB, #212121, #4A4139, #7D746A, #756758, #0BBD81, #191817, #63C174, #FF8980, #FF8E64. No new tints, no Tailwind defaults (slate, indigo, violet). (They are every colour that covers a measurable part of the page, and the colours its lines and drawings use.)
- #FFE0C4 only for text and lines — never as a section background or a large panel. (It covers 0.6% of the page.)
- #FFDEBE only for lines — never as a section background or a large panel. (It covers 0.2% of the page.)
- Only the fonts in the tokens: Inter for body; inter for interface; ibm Plex Mono for code; Figtree for display. No other typeface, and no Inter, Roboto or system UI font unless it is one of these. (The page is set in Inter and inter and gtStandard; the tokens carry what stands in for them.)
- Headings and large text never heavier than weight 500. Do not make headlines bold to add emphasis. (Every size from 24px up is set at weight 500 or lighter.)
- Large headlines tracked tight (letter-spacing -0.02em), not at the browser default. (The 63.36px headline is set at -0.02em.)
- No icon above every feature, no emoji, no decorative blobs, sparkles or glows. (None of these is part of the captured design; they are a coding model's defaults.)
- The hero is left-aligned. Do not centre it. (The captured hero sets its heading on the left.)
- Build the sections your product needs, not the original's list. Give each one this system's look: its kinds of section (hero, text, split, cards, footer), its colours, type, shapes and spacing. (The style carries to any kind of site; the original's page was for a different product.)
- No glassmorphism, backdrop blur, glowing orbs, noise blobs or neon outlines.
- No row of three identical feature cards as the default section. Vary the layout from section to section: a split, a list, a single large statement, a table.
- No centred-everything hero with a pill badge, a gradient headline and two buttons. Lead with the most specific thing about the product.
- No filler copy: no "Unlock your potential", "Revolutionize", "Seamless", "Elevate", "Supercharge", "Next-gen" or lorem ipsum. Write plain, specific sentences a real company would publish.
- No made-up statistics, testimonials or customer logos. Leave a clearly marked [content: …] slot instead.
- No radius larger than the largest one listed.
- No shadows other than the levels listed.
- Do not use postman.com's name, logo, copy or images. This is its design system, not its content.

BEFORE YOU FINISH
- Search your code for every colour, font size, spacing value, radius, shadow and easing, and replace anything that is not a variable above.
- Check that no [content: …] slot has been filled with invented facts.
- Search your CSS for gradient(. There should be none.
- Every colour value in your CSS is one of the allowed colours. Nothing else, including in hover states.
- #FFE0C4 covers about 0.6% of the page or less, as on the original.
- #FFDEBE covers about 0.2% of the page or less, as on the original.
- No text 24px or larger has a font-weight above 500.
- The largest headline uses letter-spacing -0.02em.
- Every section, including ones the original does not have, uses only this system's colours, type, shapes and spacing.
- Content sits in a 1200px container with 120px side margins at 1440px.
- There is no placeholder copy (lorem ipsum, "Feature one", "Your headline here"). Every word is real.
- Take a screenshot at 1440px and put it beside the original. List every difference in colour, weight, spacing, alignment and imagery, and fix each before finishing. Then check 390px wide: nothing scrolls sideways and no heading runs off the screen.