Eudaimonia Universal Design System
EUDS. The single visual voice of ETHRAEON.
Eudaimonia is the design system, brand token set, mandala imagery, typographic canon, and UI kit that give ETHRAEON one visual voice across every surface: product, papers, cockpit, dataroom, kits, and print. Every color, every glyph, every corner radius earns its place by living up to the constitutional standard the runtime is built on.
Purpose
One system, every surface
EUDS unifies how ETHRAEON looks and feels wherever it appears. Marketing pages, cockpit and operator consoles, papers and evidence artifacts, per-recipient kits, and print deliverables all draw from the same tokens, marks, and typographic canon.
- Marketing and docs default to the light parchment ground; runtime and operator surfaces to the void dark ground
- Forest is the only green (primary action, allow); gold is ceremonial and sparse
- Near-square corners, hairline borders, warm low shadow, gold focus ring; no gradients as decoration, no frosted glass, no emoji ever
Brand Tokens
The core token palette. Full tokens ship at /shared/euds and /assets/euds.
Typography
- Cinzel: display caps, ceremonial titles
- Cormorant Garamond: editorial serif, long-form prose
- Archivo: UI and body
- IBM Plex Mono: evidence, tokens, code, receipts
Five Design Layers
EUDS is layered, with hard boundaries between what may and may not be touched:
- Layer 1: Marketing chrome (light parchment default)
- Layer 2: Cockpit and operator dashboards (void dark ground)
- Layer 3: Cosmology visualization palette (constellation, nexus grid, rosetta, circle of life) - do not touch
- Layer 4: Paper palettes (papers/*) - do not touch
- Layer 5: Agent sigils - do not touch