Bilt — decoded design system

Name: Bilt design system (live decode)
Creator: Mozaika
Keywords: design system, design tokens, Bilt, biltrewards.com, dark, custom

biltrewards.com · dark · modern · custom · deep decode — measured live

Bilt's design system, decoded live by Mozaika: measured color roles, type scale, buttons with real hover/focus states, motion and the brand's own tokens.

Open in Mozaika →

This is a static, crawlable rendering for search & AI engines. The interactive version — filters, live decode console, copy & export — is at https://mozaika.design/decode/biltrewards.com.

Decoded design system

Bilt's decoded design system: background #010A13, text #CCCED0, accent #97C6EA, link #FBFBFB, primary #97C6EA; type scale h1 48px / h2 32px / body 16px; 8px spacing base; 0px base radius. The single interactive/action color is #97C6EA — used only on interactive or must-notice elements (buttons, links, key highlights), never on large fills.

Color roles

Role	Value
bg	`#010A13`
surface	`#0D151E`
border	`#1F272F`
text	`#CCCED0`
text_muted	`#7E8388`
primary	`#97C6EA`
accent	`#97C6EA`
link	`#FBFBFB`
secondary	`#CCCED0`
button_bg	`#97C6EA`
button_text	`#0000EE`

Using these colors

Action color #97C6EA — the single interactive color; only on things you click or must notice, never large fills.
primary, accent, button_bg are all #97C6EA — one role, not several (the action color).
accent #97C6EA — THE accent / action color — interactive & must-notice only (buttons, links, focus, one key highlight); never large fills or backgrounds. Scarcity is what makes it read as designed.
link #FBFBFB — reads as a neutral UI color, not a link accent — verify against the reference (action = #97C6EA).
secondary #CCCED0 — optional secondary accent — LOW decode confidence; use rarely (a status color or a single decorative moment) or omit it entirely. Prefer one accent unless the reference clearly shows two.

Typography

Heading: GT America Medium
Body: GT America VF Variable
Mono: GT America Mono VF Variable
h1: 48px
h2: 32px
body: 16px

Spacing

base unit: 8px
scale: 4px, 6px, 8px, 10px, 12px, 14px, 16px, 20px, 24px, 28px

Radii

base: 0px
button: 6px

Shadows (elevation)

subtle: rgba(0, 0, 0, 0.16) 0px 0.602187px 0.602187px -0.583333px, rgba(0, 0, 0, 0.18) 0px 2.28853px 2.28853px -1.16667px, rgba(0, 0, 0, 0.28) 0px 10px 10px -1.75px
card: rgba(0, 0, 0, 0.13) 0px 0.662406px 1.72226px -0.833333px, rgba(0, 0, 0, 0.13) 0px 2.51739px 6.54521px -1.66667px, rgba(0, 0, 0, 0.13) 0px 11px 28.6px -2.5px
overlay: rgba(0, 0, 0, 0.2) 0px 40px 80px -40px

Motion

Micro-interactions run at 200ms (dominant) with cubic-bezier(0, 0, 1, 1).

durations: 200ms
easings: cubic-bezier(0, 0, 1, 1)
animated properties: color, text-decoration-color, text-decoration-thickness, text-underline-offset

Button states (measured)

primary focus: outline 1px auto rgb(16, 16, 16)

Motion choreography (measured)

Scroll reveal: 9 elements rest at opacity 0, translateY(24px), animate in over 400ms.

Responsive (measured)

breakpoints: 809px · 1200px · 1439px
mobile (390px): hero 20px · nav inline

Install it

Drop this measured system into any shadcn/Tailwind project in one command:

npx shadcn add mozaika.design/r/decode/biltrewards.com

registry item · or query it over MCP: get_design_system("Bilt")

Export: DESIGN.md

# Bilt — Design System

> dark, modern, medium, custom — deep decode (measured live)

## Colors

| Role | Value |
|------|-------|
| bg | `#010A13` |
| surface | `#0D151E` |
| border | `#1F272F` |
| text | `#CCCED0` |
| text_muted | `#7E8388` |
| primary | `#97C6EA` |
| accent | `#97C6EA` |
| link | `#FBFBFB` |
| secondary | `#CCCED0` |
| button_bg | `#97C6EA` |
| button_text | `#0000EE` |

**Using these colors**

- **Action color** `#97C6EA` — the single interactive color; it appears only on things you click or must notice (buttons, key highlights), never on large fills or backgrounds.
- `primary`, `accent`, `button_bg` are all `#97C6EA` — one role, not several (your action color).
- **accent** `#97C6EA` — THE accent / action color — interactive & must-notice only (buttons, links, focus, one key highlight); never large fills or backgrounds. Scarcity is what makes it read as designed.
- **link** `#FBFBFB` — reads as a neutral UI color, not a link accent — verify against the reference (action = #97C6EA).
- **secondary** `#CCCED0` — optional secondary accent — LOW decode confidence; use rarely (a status color or a single decorative moment) or omit it entirely. Prefer one accent unless the reference clearly shows two.
- **Page coverage** (full-page screenshot pixels): `#091119` 94% · `#282F33` 6%

## Typography

- Heading: **GT America Medium** _(free fallback: Newsreader)_
- Body: **GT America VF Variable** _(free fallback: Inter)_
- Mono: **GT America Mono VF Variable**

| Role | Size / weight · line-height · tracking |
|------|------------------------------------------|
| hero | 48px / 400 · lh 55px · tracking -1.44px |
| h2 | 32px / 400 · lh 38px · tracking -0.96px |
| h3 | 24px / 400 · lh 31px · tracking -0.24px |
| body | 16px / 400 · lh 21px · tracking -0.16px |
| small | 14px / 400 · lh 20px |

- Weight ladder: 400 · 500 — use these exact measured weights, not the 400/600 defaults.

> **Fonts —** GT America Medium may be proprietary — safe free fallback: Newsreader (Google Fonts). GT America VF Variable is proprietary — closest free match: Inter (Google). Load Inter; keep GT America VF Variable first so licensed users still get it.

## Spacing
- base unit: 8px (inferred from the measured scale)
- measured scale: 4px, 6px, 8px, 10px, 12px, 14px, 16px, 20px, 24px, 28px — snap all gaps/padding to these

## Radius
- base: 0px
- button: 6px
- card: 12px

## Buttons

| Button | Fill / text | Border | Radius | Padding | Font | Shadow |
|--------|-------------|--------|--------|---------|------|--------|
| primary | `#97C6EA` / `#0000EE` | none | 6px | 6px 12px 6px 12px | 400 12px | none |
| secondary | `#030C15` / `#0000EE` | none | 6px | — | — | none |

**States (measured, not guessed)**

- primary focus: outline `1px auto rgb(16, 16, 16)`

## Shadows (elevation)
- subtle: `rgba(0, 0, 0, 0.16) 0px 0.602187px 0.602187px -0.583333px, rgba(0, 0, 0, 0.18) 0px 2.28853px 2.28853px -1.16667px, rgba(0, 0, 0, 0.28) 0px 10px 10px -1.75px`
- card: `rgba(0, 0, 0, 0.13) 0px 0.662406px 1.72226px -0.833333px, rgba(0, 0, 0, 0.13) 0px 2.51739px 6.54521px -1.66667px, rgba(0, 0, 0, 0.13) 0px 11px 28.6px -2.5px`
- overlay: `rgba(0, 0, 0, 0.2) 0px 40px 80px -40px`

## Motion
- durations: 200ms (dominant)
- easings: `cubic-bezier(0, 0, 1, 1)` (dominant)
- animated properties: color, text-decoration-color, text-decoration-thickness, text-underline-offset

Micro-interactions use the dominant duration + easing; nothing on the page animates slower than the longest duration above — don't invent springier motion.

## Motion choreography (measured)
- scroll reveal: 9 elements rest at opacity 0, translateY(24px), animate in over 400ms (8 revealed during the drive).

Rebuild the timeline, not just the durations — order, delays and staggers above are the choreography.

## Responsive (measured)
- breakpoints: 809px · 1200px · 1439px
- mobile (390px): hero 20px · body 12px · nav: inline

## How to apply
Paste the Tailwind `@theme` (or CSS variables) as your base, then build each
section to its spec — verify every color, radius, and font against these tokens.
Hover/focus states, shadows and motion timings above are measured from the live page — match them exactly, don't re-guess them.

← All decoded design systems

An automated reading of Bilt's publicly-visible CSS (colors, fonts, spacing, motion) — not affiliated with biltrewards.com. No screenshots stored. Removal requests: hello@mozaika.design.