> Atmospheric study inspired by NVIDIA's publicly visible design language. Void Energy is not affiliated with, endorsed by, sponsored by, or licensed by NVIDIA. The downloadable atmosphere file contains color, motion, and typographic-rhythm tokens only — no brand logos, marks, or proprietary assets. All trademarks are the property of their respective owners.

---

---
name: NVIDIA
version: alpha
description: NVIDIA's gaming flagship — the GeForce RTX launch surface. Pure black canvas, vibrant signature green #76b900 driving energy at full saturation. The "ray-tracing demo on dark" reading: maximum green pop on neutral black. Distinguished from data-center-dark by green saturation (vibrant vs muted institutional) and from ai- workstation-light by mode (consumer-dark vs developer-light).

colors:
  primary: "#76b900"
  secondary: "#4d7600"
  neutral: "#a7a7a7"
  surface: "#1a1a1a"
  surface-container: "#000000"
  on-surface: "#ffffff"
  on-surface-variant: "#b3b3b3"
  outline: "#353535"
  error: "#ff3c40"

typography:
  display-lg:
    fontFamily: "'Inter', sans-serif"
    fontSize: 56px
    fontWeight: 700
    lineHeight: 1.1
    letterSpacing: "-0.02em"
  headline-lg:
    fontFamily: "'Inter', sans-serif"
    fontSize: 40px
    fontWeight: 600
    lineHeight: 1.15
    letterSpacing: "-0.015em"
  headline-md:
    fontFamily: "'Inter', sans-serif"
    fontSize: 32px
    fontWeight: 600
    lineHeight: 1.2
    letterSpacing: "-0.01em"
  headline-sm:
    fontFamily: "'Inter', sans-serif"
    fontSize: 24px
    fontWeight: 600
    lineHeight: 1.3
  body-lg:
    fontFamily: "'Inter', sans-serif"
    fontSize: 18px
    fontWeight: 400
    lineHeight: 1.5
  body-md:
    fontFamily: "'Inter', sans-serif"
    fontSize: 16px
    fontWeight: 400
    lineHeight: 1.5
  body-sm:
    fontFamily: "'Inter', sans-serif"
    fontSize: 14px
    fontWeight: 400
    lineHeight: 1.5
  label-md:
    fontFamily: "'Inter', sans-serif"
    fontSize: 14px
    fontWeight: 500
    lineHeight: 1.4
    letterSpacing: "0.02em"
  label-sm:
    fontFamily: "'Inter', sans-serif"
    fontSize: 12px
    fontWeight: 500
    lineHeight: 1.4
    letterSpacing: "0.02em"

spacing:
  xs: 8px
  sm: 16px
  md: 24px
  lg: 32px
  xl: 48px
  "2xl": 64px
  "3xl": 96px
  "4xl": 128px
  "5xl": 160px

rounded:
  sm: 2px
  md: 4px
  lg: 6px
  xl: 8px
  full: 9999px

components:
  button-primary:
    backgroundColor: "{colors.primary}"
    textColor: "{colors.surface-container}"
    rounded: "{rounded.full}"
    padding: 16px
    typography: "{typography.label-md}"
  button-primary-hover:
    backgroundColor: "{colors.primary}"
    textColor: "{colors.surface-container}"
  button-secondary:
    backgroundColor: "{colors.secondary}"
    textColor: "{colors.on-surface}"
    rounded: "{rounded.full}"
    padding: 16px
    typography: "{typography.label-md}"
  button-tertiary:
    backgroundColor: "{colors.surface-container}"
    textColor: "{colors.on-surface-variant}"
    rounded: "{rounded.full}"
    padding: 16px
    typography: "{typography.label-md}"
  text-disabled:
    textColor: "{colors.neutral}"
    typography: "{typography.body-sm}"
  button-error:
    backgroundColor: "{colors.error}"
    textColor: "{colors.surface-container}"
    rounded: "{rounded.full}"
    padding: 16px
    typography: "{typography.label-md}"
  input:
    backgroundColor: "{colors.surface}"
    textColor: "{colors.on-surface}"
    rounded: "{rounded.md}"
    padding: 12px
    typography: "{typography.body-md}"
  card:
    backgroundColor: "{colors.surface}"
    textColor: "{colors.on-surface}"
    rounded: "{rounded.md}"
    padding: 32px
  divider:
    backgroundColor: "{colors.outline}"
    height: 1px
---

# NVIDIA

NVIDIA's gaming flagship — the GeForce RTX launch surface. Pure black canvas, vibrant signature green #76b900 driving energy at full saturation. The "ray-tracing demo on dark" reading: maximum green pop on neutral black. Distinguished from data-center-dark by green saturation (vibrant vs muted institutional) and from ai- workstation-light by mode (consumer-dark vs developer-light).

This document describes the **Vibrant Dark** atmosphere (`nvidia-rtx-green-dark`) — a dark/flat reading of NVIDIA produced by the Void Energy design system. Render it live at https://voidenergy.dev/atmospheres/nvidia, or boot it in any Void Energy app:

```js
voidEngine.loadExternal('https://voidenergy.dev/atmospheres/nvidia/rtx-green-dark.json');
```

## Overview

NVIDIA's **Vibrant Dark** reading. The mood: opaque surfaces with crisp shadows; the mode: dark. Headings are set in Inter; body copy is Inter.

Two principles govern everything below:

1. **Generous whitespace over dense packing.** Surfaces breathe. When a gap feels tight, go one size up rather than down. Void Energy's spacing scale is intentionally wide (8 → 160px).
2. **Sentence case controls over uppercase shouting.** Buttons, inputs, and labels use natural sentence case with medium weight by default. Uppercase is an intentional, infrequent choice — never applied to metrics, chrome, or dashboard cards by default.

## Colors

The palette is built on three layers:

- **Primary (`#76b900`)** — the single interactive accent. Used for buttons, links, focused inputs, and selection states. Do not repurpose for decoration.
- **Secondary (`#4d7600`)** — companion accent for secondary actions, charts, and data-series 2. Always distinguishable from primary; never a competing focal point.
- **Surface stack** — three background layers that convey depth:
  - `surface-container` (`#000000`) — the page canvas.
  - `surface` (`#1a1a1a`) — floating cards, panels, and chrome.
  - `outline` (`#353535`) — borders and dividers. Low-contrast by design: borders should whisper structure, not shout.

Text forms a descending-contrast hierarchy:

- `on-surface` (`#ffffff`) — primary text. WCAG AA against surface layers.
- `on-surface-variant` (`#b3b3b3`) — secondary text, captions, metadata.
- `neutral` (`#a7a7a7`) — disabled states and tertiary hints only.

Semantic signal:

- `error` (`#ff3c40`) — destructive actions and validation failures. Reserved for genuinely negative states; not for warnings or info.

## Typography

This atmosphere pairs **Inter** for headings and **Inter** for body. The full nine-level scale (display through label) is in the frontmatter `typography` block.

### Brand typography overrides

NVIDIA's identity carries explicit overrides on the typographic axis. Anything not listed inherits the system default.

- **Display weight** (h1, h2): `700`
- **Heading tracking** (h3, h4): `0`

## Layout & Spacing

Void Energy uses an **8px base grid** with a wide scale:

- **Component level** (tight): xs (8), sm (16), md (24), lg (32)
- **Layout level** (accelerated): xl (48), 2xl (64), 3xl (96), 4xl (128), 5xl (160)

Apply along two axes:

1. **Surface padding floor.** Floating surfaces use `lg` (32px) minimum padding and `lg` inner gaps. Sunk/inset surfaces drop to `md` (24px). Never use `sm` or `xs` on a floating card.
2. **Layout gaps.** Page sections use `2xl` (64px) between them. Content blocks inside a section use `xl` (48px). Grouped controls use `md` (24px). Tight couplings (label → input, icon + text) use `xs` (8px).

The scale density-scales at runtime across five presets: Compact (×0.8), Cozy (×0.9), Standard (×1), Roomy (×1.1), Airy (×1.2). Static snapshots assume Standard.

## Elevation & Depth

This is a **flat-physics** atmosphere. Surfaces are opaque (`#1a1a1a`); shadows are minimal (5–10% opacity in light mode, 30–40% in dark mode for visibility). Hover has no Y translation and no scale by default — flat physics expresses interactivity through tint changes, not lift.

## Shapes

NVIDIA's radii reflect the brand's shape language. The active scale:

- `rounded.sm`: 2px
- `rounded.md`: 4px
- `rounded.lg`: 6px
- `rounded.xl`: 8px
- `rounded.full`: 9999px

## Components

The frontmatter `components` block covers the canonical atoms. Notes on applying them:

### Buttons

- `button-primary` — primary action, anchored on `#76b900`. One per view.
- `button-secondary` — companion action, on `#4d7600`.
- `button-tertiary` — quietest button; for cancel, dismiss, tertiary navigation.

### Inputs & Cards

- `input` — surface background, `body-md` typography, 12px padding. Native `<input>` / `<select>` / `<textarea>` with SCSS providing the visual treatment.
- `card` — surface background, generous 32px padding (`lg`). The default container for content groups.

## Do's and Don'ts

**Do:**

- Use `primary` (`#76b900`) for exactly one action per view.
- Default to sentence case on buttons and labels. Uppercase is a choice, not a default.
- Maintain WCAG AA contrast (4.5:1 for body text, 3:1 for UI components).
- Apply `lg` (32px) padding minimum to cards.
- Wrap native `<button>`, `<input>`, `<select>` rather than rebuilding interaction from `<div>`.

**Don't:**

- Don't substitute the green — #76b900 is canonical NVIDIA green (PMS-anchored); other greens break the brand-mark reading.
- Don't dim the green for 'professionalism' — vibrant saturation is the gaming-flagship voice.
- Don't substitute canvas with #0a0a0a or near-black — pure #000000 is the GeForce hero void.
- Don't repurpose `primary` (`#76b900`) for decoration. It is a load-bearing interaction signal.
- Don't use `error` (`#ff3c40`) for warnings. Error is reserved for destructive and failure states.
- Don't use `neutral` for body text — it is for disabled states and tertiary hints only.

## Responsive Behavior

Void Energy is mobile-first. Breakpoints:

- **mobile** 0px (default)
- **tablet** 768px
- **desktop** 1024px

Spacing, control heights, and typography all density-scale at runtime. Touch targets have a floor: 44px on coarse pointers (mobile/tablet), 36px on fine pointers (desktop).

## Agent Prompt Guide

When asked to build UI "in the Vibrant Dark aesthetic," default to:

- **Backgrounds:** `#000000` for the page canvas; `#1a1a1a` for floating cards.
- **Text:** `#ffffff` for primary, `#b3b3b3` for secondary.
- **Accents:** `#76b900` for the single most important action; `#4d7600` for companion actions.
- **Radii:** 4px on surfaces and inputs; pill on buttons.
- **Padding:** 32px on cards, 16px on buttons, 12px on inputs.
- **Typography:** Inter for headings; Inter for body and labels.

## Sources

The Vibrant Dark palette and shape language derive from publicly visible NVIDIA surfaces:

- https://www.nvidia.com
- https://www.nvidia.com/en-us/geforce/
- https://getdesign.md/nvidia/design-md

## License

Void Energy ships under the Business Source License (BSL 1.1). Source is visible; production use requires a license from DGRS Labs until the four-year auto-convert clause elapses. This DESIGN.md file itself is distributed under the same license as the repository it lives in.

This atmosphere is an atmospheric study of publicly visible NVIDIA design language. Void Energy is not affiliated with, endorsed by, sponsored by, or licensed by NVIDIA. The atmosphere file contains color, motion, and typographic-rhythm tokens only — no brand logos, marks, or proprietary assets.

## The Full System

This file describes the **Vibrant Dark** atmosphere as a single snapshot. The Void Energy runtime is larger:

- **NVIDIA variants** — see https://voidenergy.dev/atmospheres/nvidia for the full set of atmospheres in this brand (alternate modes, eras, or interpretations).
- **Three physics presets:** glass (translucent + blur), flat (opaque + crisp shadows), retro (CRT phosphor + steps motion). Physics controls blur, border width, motion, and radius behavior — never color.
- **Two color modes:** light and dark. Glass requires dark; flat and retro work with both.
- **Density scaling:** Compact / Cozy / Standard / Roomy / Airy (×0.8 – ×1.2), applied multiplicatively to the spacing scale.
- **Component library:** Svelte 5 components (Runes) with a native-first pattern — wrappers around `<button>`, `<input>`, `<select>`, `<dialog>`, etc.
- **JSON download:** https://voidenergy.dev/atmospheres/nvidia/rtx-green-dark.json is a portable artifact. Boot it in any Void Energy app via `voidEngine.loadExternal()`, or hand it to any tool that consumes the @void-energy/atmosphere-spec format.

For the full installable system, see the Void Energy repository. For agent-to-agent communication outside the live runtime, this DESIGN.md is the authoritative snapshot of the NVIDIA Vibrant Dark aesthetic.