Vapi — decoded design system

vapi.ai · dark · modern · tailwind · deep decode — measured live

Vapi'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/vapi.ai.

Decoded design system

Vapi's decoded design system: background #0E0E13, text #FFFAEA, accent #9ACDBF, link #FFFFFF, primary #FFFAEA; type scale h1 80px / h2 58px / body 15px; 8px spacing base; 0px base radius. The single interactive/action color is #FFFFFF — used only on interactive or must-notice elements (buttons, links, key highlights), never on large fills.

Color roles

Using these colors

• Action color #FFFFFF — the single interactive color; only on things you click or must notice, never large fills.
• link, button_bg are all #FFFFFF — one role, not several (the action color).
• accent #9ACDBF — accent for emphasis — keep it rare on the page.
• primary #FFFAEA — ≈ the text color — a foreground/text color, not an action color (action = #FFFFFF).

Typography

• Heading: foundryGridnik
• Body: avantt
• Mono: Geist Mono
• h1: 80px
• h2: 58px
• body: 15px

Spacing

• base unit: 8px
• scale: 2px, 4px, 8px, 10px, 14px, 16px, 24px, 32px, 40px, 48px

Radii

• base: 0px
• button: 12px

Motion

Micro-interactions run at 150ms (dominant) with cubic-bezier(0.4, 0, 0.2, 1).

• durations: 150ms · 200ms · 300ms
• easings: cubic-bezier(0.4, 0, 0.2, 1) · ease-out
• animated properties: background-color, color, border-color, stroke

Native design tokens

…and 110 more measured on the page.

Button states (measured)

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

Layout (measured)

• container max-width: 1296px
• common grid: 2 columns

Motion choreography (measured)

Load order: span.inline-block×2 → span.pointer-events-none×2 → li.flex → span×3 → div.animate-pulse×2 → span.absolute

Scroll reveal: 10 elements rest at translateY(58px), animate in over 298ms.

Stagger: span ×3 — 150ms apart.

Responsive (measured)

• breakpoints: 420px · 640px · 768px · 1024px · 1280px · 1536px
• mobile (390px): hero 56px · nav hamburger

Install it

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

npx shadcn add mozaika.design/r/decode/vapi.ai

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

Export: DESIGN.md

# Vapi — Design System

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

## Colors

| Role | Value |
|------|-------|
| bg | `#0E0E13` |
| surface | `#1C1C1F` |
| border | `#323133` |
| text | `#FFFAEA` |
| text_muted | `#A3A098` |
| primary | `#FFFAEA` |
| accent | `#9ACDBF` |
| link | `#FFFFFF` |
| button_bg | `#FFFFFF` |
| button_text | `#000000` |

**Using these colors**

- **Action color** `#FFFFFF` — the single interactive color; it appears only on things you click or must notice (buttons, key highlights), never on large fills or backgrounds.
- `link`, `button_bg` are all `#FFFFFF` — one role, not several (your action color).
- **accent** `#9ACDBF` — accent for emphasis — keep it rare on the page.
- **primary** `#FFFAEA` — ≈ the text color — a foreground/text color, not an action color (action = #FFFFFF).
- **Page coverage** (full-page screenshot pixels): `#000000` 22.6% · `#5C5D58` 15.1% · `#3A3A37` 14.6% · `#737E7A` 12.7%

## Typography

- Heading: **foundryGridnik** _(free fallback: Newsreader)_
- Body: **avantt** _(free fallback: Newsreader)_
- Mono: **Geist Mono**

| Role | Size / weight · line-height · tracking |
|------|------------------------------------------|
| hero | 80px / 600 · lh 72px · tracking -4px |
| h2 | 58px / 500 · lh 58px · tracking -2.32px |
| h3 | 40px / 500 · lh 40px · tracking -1.6px |
| body | 15px / 500 · lh 21px |
| small | 14px / 400 · lh 14px · tracking 1.8px |
| eyebrow | 14px / 500 · tracking 1.2px |

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

> **Fonts —** foundryGridnik may be proprietary — safe free fallback: Newsreader (Google Fonts). avantt may be proprietary — safe free fallback: Newsreader (Google Fonts).

## Spacing
- base unit: 8px (inferred from the measured scale)
- measured scale: 2px, 4px, 8px, 10px, 14px, 16px, 24px, 32px, 40px, 48px — snap all gaps/padding to these
- section rhythm: 96px top/bottom padding per section (measured)

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

## Buttons

| Button | Fill / text | Border | Radius | Padding | Font | Shadow |
|--------|-------------|--------|--------|---------|------|--------|
| primary | `#FFFFFF` / `#000000` | none | 12px | 0px 16px 0px 16px | 500 15px | none |
| secondary | `#000000` / `#FAFAFA` | 1px solid rgb(0, 0, 0) | 12px | 0px 16px 0px 16px | 500 15px | none |

**States (measured, not guessed)**

- primary focus: outline `1px auto rgb(16, 16, 16)`
- transition: `all 0.3s cubic-bezier(0.4, 0, 0.2, 1)`

## Motion
- durations: 150ms (dominant) · 200ms · 300ms
- easings: `cubic-bezier(0.4, 0, 0.2, 1)` (dominant) · `ease-out`
- animated properties: background-color, color, border-color, stroke

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

## Their own tokens (verbatim from :root)

| Token | Value |
|-------|-------|
| `--osano-clear-dialog-background` | `rgba(0,0,0,0)` |
| `--osano-button-border-color` | `rgba(0,0,0,0)` |
| `--osano-button-background-color` | `#37aa9d` |
| `--osano-button-foreground-color` | `#fafafa` |
| `--osano-dialog-background-color` | `#1f1f23` |
| `--osano-dialog-foreground-color` | `#fafafa` |
| `--osano-info-dialog-overlay-color` | `rgba(0,0,0,0.45)` |
| `--osano-link-color` | `#37aa9d` |
| `--osano-toggle-off-track-color` | `#62f6b5` |
| `--osano-toggle-off-thumb-color` | `#FFFFFF` |
| `--osano-toggle-on-track-color` | `#37CD8F` |
| `--osano-toggle-on-thumb-color` | `#FFFFFF` |

_…and 108 more measured on the page._

Prefer these names when extending their system — it's the brand's actual vocabulary.

## Layout (measured)
- container max 1296px · common grid: 2-col
- nav: 0px sticky

| Section (y) | Height | Cols | Gap | Pad y | Split |
|---|---|---|---|---|---|
| 112 | 720 | — | — | 0/0 | — |
| 832 | 379 | 2 | 38 | 96/96 | 63/37 |
| 1211 | 1659 | 2 | 24 | 0/0 | 33/67 |
| 2869 | 352 | 2 | 40 | 96/96 | 30/70 |
| 3221 | 535 | 2 | 48 | 96/96 | 38/62 |
| 3756 | 987 | 2 | 2 | 0/0 | — |
| 4743 | 478 | 5 | — | 96/96 | — |

## Motion choreography (measured)
Load order: `span.inline-block`×2 @0ms → `span.pointer-events-none`×2 @0ms → `li.flex` @0ms → `span`×3 @0ms → `div.animate-pulse`×2 @0ms → `span.absolute` @389ms
- `li.relative` ×3 — opacity 0→1 · transform translateY(6px)→translateY(0px) — 480ms cubic-bezier(0.22, 0.8, 0.36, 1)
- `li.flex` — opacity 0→1 · transform translateY(8px)→translateY(0px) — 320ms cubic-bezier(0.2, 0.8, 0.2, 1)
- `span.pointer-events-none` ×2 — opacity 0→0 · transform scale(0.9)→scale(1.5) — 2400ms cubic-bezier(0.22, 0.61, 0.36, 1) · loops
- `span` ×3 — opacity 0.3→0.3 · transform scale(0.85)→scale(0.85) — 1200ms ease-in-out · loops
- `span.absolute` — transform none→rotate(360deg) — 3000ms · loops
- stagger: `span` ×3 — 150ms apart
- scroll reveal: 10 elements rest at translateY(58px), animate in over 298ms (0 revealed during the drive).

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

## Components (measured)
- link: #000000 · no underline

## Responsive (measured)
- breakpoints: 420px · 640px · 768px · 1024px · 1280px · 1536px
- mobile (390px): hero 56px · body 16px · nav: hamburger

## 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 Vapi's publicly-visible CSS (colors, fonts, spacing, motion) — not affiliated with vapi.ai. No screenshots stored. Removal requests: hello@mozaika.design.