Sutéra design system

---
version: alpha
name: Sutéra
description: "Light monochrome interface measured from sutera.ch: NeueHaas type with PPNeueMontreal, tonal surfaces and 10px corners."
colors:
  background: "#CBCBCB"
  surface: "#CBCBCB"
  on-surface: "#000000"
  on-background: "#000000"
  surface-container-low: "#FFFFFF"
  primary: "#000000"
  on-primary: "#FFFFFF"
  secondary: "#B5E9FF"
typography:
  headline-display:
    fontFamily: NeueHaas
    fontSize: 66.5px
    fontWeight: 400
    lineHeight: 0.9
    letterSpacing: -0.04em
  body-md:
    fontFamily: PPNeueMontreal
    fontSize: 10px
    fontWeight: 400
    lineHeight: 1
  body-lg:
    fontFamily: PPNeueMontreal
    fontSize: 11px
    fontWeight: 400
    lineHeight: 1.1
  label-md:
    fontFamily: PPNeueMontreal
    fontSize: 12px
    fontWeight: 400
    lineHeight: 1.1
  headline-display-mobile:
    fontFamily: PPNeueMontreal
    fontSize: 14px
    fontWeight: 400
    lineHeight: 1.1
rounded:
  sm: 8px
  md: 10px
  lg: 52px
spacing:
  xs: 2.45px
  sm: 6.65px
  md: 9px
  lg: 24px
  xl: 33.57px
  section: 162px
  margin: 24px
components:
  link:
    textColor: "{colors.primary}"
---

# Sutéra Design System

## Overview

Sutéra describes itself as: “I design systems that shape how humans and machines connect. From robotic extensions to perceptual interfaces, my work lives at the intersection of biology and technology.” The interface is light, built on **Silver (#CBCBCB)** with **Near Black (#000000)** text and almost no color: actions are carried by contrast, not hue.

Type is set in **NeueHaas** and **PPNeueMontreal**. Headlines run large with tight negative tracking; body text is 10px. The surface language is flat. Corners are mostly 10px.

Measured from [sutera.ch](https://www.sutera.ch/) on November 5, 2026 at 1440×900 and 390×844 from 139 rendered elements. Values are computed styles from the live page, not the original source files.

## Colors

The palette has 6 roles.

- **Silver (#CBCBCB):** Page background. Token `background`.
- **Near Black (#000000):** Primary text and headings, seen 56 times. Token `on-surface`, CSS `--color-black`.
- **White (#FFFFFF):** Raised areas one step from the page, seen 1 time. Token `surface-container-low`, CSS `--color-white`.
- **Near Black (#000000):** Primary actions (the main text color; the palette is monochrome), seen 69 times. Token `primary`, CSS `--color-black`.
- **White (#FFFFFF):** Text and icons on primary. Token `on-primary`.
- **Light Cyan (#B5E9FF):** Accent, seen 1 time. Token `secondary`.

## Typography

**NeueHaas** and **PPNeueMontreal** share the interface. Fallback stack: `NeueHaas`.

- **headline-display:** NeueHaas 66.5px at weight 400, line height 0.9, tracking -0.04em (14px on mobile). Page title (h1).
- **body-md:** PPNeueMontreal 10px at weight 400, line height 1. Body text.
- **body-lg:** PPNeueMontreal 11px at weight 400, line height 1.1. Lead paragraphs.
- **label-md:** PPNeueMontreal 12px at weight 400, line height 1.1, uppercase. Buttons, navigation and labels.

## Layout

Spacing does not follow a strict grid: 32% of measured values are multiples of 4px, so match the measured steps rather than rounding to a grid.

- **Scale:** xs 2.45px, sm 6.65px, md 9px, lg 24px, xl 33.57px.
- **Sections:** 162px vertical padding between major sections.
- **Page margin:** 24px on each side of full-width sections.
- **Breakpoints:** 768px.

## Elevation & Depth

The design is flat: no shadows were measured. Hierarchy comes from tonal surface steps (#FFFFFF).

## Shapes

Most elements use 10px corners. Measured radii, most used first:

- **md (10px):** 28 elements.
- **lg (52px):** 8 elements.
- **sm (8px):** 4 elements.

## Components

Measured from the rendered page. Token values reference the tokens above.

- **link:** transparent fill, #000000 text, padding 0px.

## Do's and Don'ts

- Do use #CBCBCB for the page and lift surfaces in small steps: #FFFFFF.
- Do let contrast carry emphasis; primary actions use #000000 on #CBCBCB.
- Do set headlines in NeueHaas with tight tracking (-0.04em).
- Do reuse the measured spacing steps (6.65px, 9px, 24px).
- Do use 10px corners on most elements; larger surfaces also use 52px and 8px.
- Don't add drop shadows for depth; use tonal surfaces.
- Don't introduce new font families beyond NeueHaas and PPNeueMontreal.
- Don't add saturated accent colors; the measured palette is almost entirely neutral.

Generated by [Sitepeel](https://sitepeel.dev/design-md/sutera.ch/), the free DESIGN.md generator (engine 2026.10.29+b828a475ee10).