Turso

---
name: Turso
tagline: 'SQLite at the edge — a deep-teal canvas with a CRT-bright cyan accent (#00face) that reads as a glowing edge node.'
author: webdesignhot
source_url: https://turso.tech
spec: design.md/v1.5
quality: curated
featured: false
categories: [dev-tools, saas]
tags: [dark, sans, mono, structured, bright, cool]
preview_swatch: ['#0f1419', '#00face', '#1ebca1']
related: [neon, supabase, vercel]
description: 'Turso runs a deep-teal near-black canvas (`#0f1419`) with a CRT-bright cyan accent (`#00face`) — the brand colour reads literally as the hex "FACE." Supporting tones range through emerald (`#1ebca1`, `#23765f`) for tinted panels, giving the SQLite-at-the-edge product a glowing-edge-node aesthetic. Mono numerals carry replication metrics; the cyan is reserved for primary action and live indicators.'

colors:
  # Primary
  bg: '#0f1419'                  # deep-teal near-black canvas
  bg-deep: '#0a0e12'             # deeper variant for footer
  bg-elev-1: '#121b1f'           # subtle lift
  bg-elev-2: '#182228'           # card surface
  bg-elev-3: '#1c2b34'           # popover surface
  surface: '#182228'             # card surface
  surface-alt: '#18222b'         # secondary panel
  surface-tinted: '#183134'      # tinted teal panel
  surface-tinted-2: '#1c2b34'    # mid-tone tint
  surface-tinted-3: '#1e3338'    # deeper tint

  # Brand & Dark
  brand: '#00face'               # CRT-bright cyan — literal hex "FACE"
  brand-hover: '#00fbcf'         # hover variant
  brand-pressed: '#00d8b0'       # pressed
  brand-deep: '#00a890'          # deeper cyan for icons
  brand-glow: '#00face33'         # 20% cyan glow
  on-brand: '#0f1419'             # deep-teal text on cyan

  # Accent
  accent-emerald: '#1ebca1'      # mid-emerald
  accent-emerald-deep: '#23765f' # darker emerald for tinted panels
  accent-emerald-mid: '#1e6952'  # mid-deep emerald
  accent-emerald-mute: '#29886e' # muted emerald
  accent-emerald-soft: '#1ebca11f' # 12% emerald wash

  # Interactive
  link: '#00face'                # links use brand cyan
  link-hover: '#00fbcf'          # link hover
  link-visited: '#00d8b0'        # visited
  selected: '#00face26'          # 15% cyan selection
  disabled: '#283945'            # disabled bg
  disabled-text: '#586876'       # disabled text

  # Neutral Scale
  text: '#ffffff'                # primary copy
  text-heading: '#ffffff'        # headlines
  text-muted: '#9ba3a8'          # secondary
  text-soft: '#6b7882'           # tertiary
  text-faint: '#4a5560'          # quaternary
  text-disabled: '#586876'       # disabled

  # Surface & Borders
  border: '#1f2a33'              # solid hairline
  border-soft: '#283945'         # softer border
  border-strong: '#3a4a55'       # emphasized border
  border-brand: '#00face66'      # 40% cyan on focus

  # Shadow
  shadow-ambient: 'rgba(0,0,0,0.35)'    # low ambient
  shadow-standard: 'rgba(0,0,0,0.55)'   # standard
  shadow-elevated: 'rgba(0,0,0,0.7)'    # popover
  shadow-glow: 'rgba(0,250,206,0.35)'   # cyan focus glow

  # Semantic
  success: '#1ebca1'             # success uses emerald
  success-bg: '#0f3a2e'          # success surface
  warning: '#f5a623'             # amber warning
  warning-bg: '#3a2710'          # warning surface
  danger: '#ff5c5c'              # coral red
  danger-bg: '#3a1818'           # danger surface
  info: '#00face'                # info uses brand cyan
  info-bg: '#0a3539'             # info surface

typography:
  display:
    family: 'Inter, -apple-system, "system-ui", "Segoe UI", Roboto, "Helvetica Neue", sans-serif'
    weights: [600, 700]
    opentype-features: ['ss01', 'cv11']
  body:
    family: 'Inter, -apple-system, "system-ui", "Segoe UI", Roboto, "Helvetica Neue", sans-serif'
    weights: [400, 500, 600]
    opentype-features: ['ss01']
  mono:
    family: '"Fira Code", "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace'
    weights: [400, 500, 600]
    opentype-features: ['zero', 'tnum']
  scale:
    display-hero:   { size: 88, weight: 700, lineHeight: 1.0,  tracking: '-0.035em', family: display, opentype: 'ss01' }
    display-large:  { size: 64, weight: 700, lineHeight: 1.05, tracking: '-0.025em', family: display, opentype: 'ss01' }
    h1:             { size: 48, weight: 700, lineHeight: 1.1,  tracking: '-0.022em', family: display, opentype: 'ss01' }
    h2:             { size: 36, weight: 700, lineHeight: 1.15, tracking: '-0.02em',  family: display }
    h3:             { size: 22, weight: 600, lineHeight: 1.3,  tracking: '-0.01em',  family: display }
    h4:             { size: 18, weight: 600, lineHeight: 1.35, tracking: '-0.005em', family: display }
    body-large:     { size: 17, weight: 400, lineHeight: 1.55, tracking: '0',         family: body }
    body:           { size: 15, weight: 400, lineHeight: 1.55, tracking: '0',         family: body }
    body-small:     { size: 13, weight: 400, lineHeight: 1.45, tracking: '0',         family: body }
    label-mono:     { size: 12, weight: 500, lineHeight: 1.3,  tracking: '0.04em',    family: mono, opentype: 'zero, tnum' }
    button:         { size: 15, weight: 500, lineHeight: 1.0,  tracking: '0',         family: body }
    button-small:   { size: 13, weight: 500, lineHeight: 1.0,  tracking: '0',         family: body }
    link:           { size: 15, weight: 500, lineHeight: 1.55, tracking: '0',         family: body }
    metric:         { size: 32, weight: 500, lineHeight: 1.05, tracking: '-0.01em',   family: mono, opentype: 'zero, tnum' }
    caption:        { size: 13, weight: 400, lineHeight: 1.4,  tracking: '0',         family: body }
    caption-small:  { size: 12, weight: 400, lineHeight: 1.35, tracking: '0',         family: body }
    micro:          { size: 11, weight: 500, lineHeight: 1.3,  tracking: '0.05em',    family: body }
    code-body:      { size: 13, weight: 400, lineHeight: 1.55, tracking: '0',         family: mono, opentype: 'zero' }
    code-bold:      { size: 13, weight: 600, lineHeight: 1.55, tracking: '0',         family: mono, opentype: 'zero' }
    code-label:     { size: 11, weight: 500, lineHeight: 1.3,  tracking: '0.05em',    family: mono, opentype: 'zero, tnum' }

radius:
  micro: 2
  sm: 4
  md: 8           # button
  lg: 12          # card
  xl: 16          # hero shell
  featured: 20    # signature feature shells
  pill: 9999

spacing:
  base: 4
  scale: [2, 4, 8, 12, 16, 20, 24, 32, 40, 48, 64, 80, 96, 128]
  xxs: 2
  xs: 4
  sm: 8
  md: 16
  lg: 24
  xl: 32
  xxl: 48
  section-sm: 64
  section: 96
  section-lg: 128

layout:
  page-width: 1280
  prose-width: 720
  header-height: 64

motion:
  ease-standard: 'cubic-bezier(0.4, 0, 0.2, 1)'
  ease-emphasized: 'cubic-bezier(0.2, 0, 0, 1)'
  ease-decelerate: 'cubic-bezier(0, 0, 0.2, 1)'
  duration-fast: 120
  duration-standard: 200
  duration-slow: 320
  reduced-motion: 'respects prefers-reduced-motion: reduce — edge-node map pulse animations disabled, cyan glow pulses removed, transitions reduce to opacity.'

breakpoints:
  mobile: 640
  tablet: 1024
  desktop: 1280
  wide: 1536

shadows:
  ambient: 'rgba(0,0,0,0.35) 0 1px 2px'
  standard: 'rgba(0,0,0,0.55) 0 8px 16px -4px'
  elevated: 'rgba(0,0,0,0.7) 0 18px 36px -12px, rgba(0,0,0,0.4) 0 8px 16px -8px'
  deep: 'rgba(0,0,0,0.8) 0 30px 60px -16px'
  ring: '0 0 0 2px #00face'
  glow: '0 0 24px rgba(0,250,206,0.4)'

accessibility:
  contrast-text-on-bg: 17.4         # AAA — white on #0f1419
  contrast-text-on-brand: 13.8      # AAA — #0f1419 text on cyan brand
  contrast-link-on-bg: 14.6         # AAA — cyan link on near-black
  contrast-muted-on-bg: 6.4         # AA at body sizes
  focus-ring: '2px solid #00face, offset 2px'
  reduced-motion-honored: true
  keyboard-nav: 'standard tab order; cyan focus ring on all interactive controls'

components:
  button-primary:
    bg: '#00face'
    text: '#0f1419'
    padding: '10px 16px'
    radius: 8
    font: 'button (15/500)'
    border: 'none'
    hover: 'bg → #00fbcf; subtle 1.005 scale'
    active: 'bg → #00d8b0'
    use: 'primary CTA — Get started, Sign up'
  button-ghost:
    bg: 'transparent'
    text: '#ffffff'
    padding: '10px 16px'
    radius: 8
    font: 'button (15/500)'
    border: '1px solid #283945'
    hover: 'border → #3a4a55; bg → rgba(255,255,255,0.04)'
    use: 'secondary action'
  button-danger:
    bg: 'transparent'
    text: '#ff5c5c'
    padding: '10px 16px'
    radius: 8
    border: '1px solid rgba(255,92,92,0.4)'
    hover: 'bg → rgba(255,92,92,0.08)'
    use: 'destructive action'
  card:
    bg: '#182228'
    text: '#ffffff'
    padding: '24px'
    radius: 12
    border: '1px solid #1f2a33'
    shadow: 'rgba(0,0,0,0.35) 0 1px 2px'
    hover: 'border → #283945; shadow → standard'
    use: 'feature card, region card'
  card-tinted:
    bg: '#183134'
    text: '#ffffff'
    padding: '24px'
    radius: 12
    border: 'none'
    use: 'tinted teal feature panel'
  input:
    bg: '#0a0e12'
    text: '#ffffff'
    placeholder: '#586876'
    padding: '10px 14px'
    radius: 8
    border: '1px solid #283945'
    focus: 'border → #00face; ring 2px solid rgba(0,250,206,0.3)'
    use: 'text input, search'
  badge:
    bg: '#183134'
    text: '#1ebca1'
    padding: '2px 10px'
    radius: 9999
    font: 'micro (11/500)'
    use: 'tag, region pill, status'
  badge-live:
    bg: 'transparent'
    text: '#00face'
    padding: '2px 10px'
    radius: 9999
    border: '1px solid rgba(0,250,206,0.3)'
    font: 'micro (11/500 mono)'
    use: 'live replica indicator'
  nav-link:
    bg: 'transparent'
    text: '#9ba3a8'
    padding: '8px 12px'
    font: 'body-small (14/500)'
    hover: 'text → #ffffff'
    active: 'text → #00face'
    use: 'top nav, sidebar'

lineage:
  summary: |
    Turso's chromatic identity is built around a single piece of brand-as-
    pun: the primary cyan is `#00face`, a hex that literally spells the
    word **FACE**. That self-referential gag is the brand's wink at the
    developers it courts, and the colour itself — a CRT-bright cyan
    closer to `#00ffff` than to teal — gives the page a glowing-edge-node
    feel. The deep-teal canvas `#0f1419` reads as the dark side of an
    edge server, while the supporting emerald scale (`#1ebca1`,
    `#1e6952`, `#23765f`) gives Turso a chromatic ladder rather than a
    single-accent palette. Where Neon commits to mint and PlanetScale to
    blood-red, Turso commits to **edge cyan** — bright, cool, glowing,
    immediately readable as "live replica online." Type is Inter, weights
    600–700 for display, with mono carrying replication metrics. Buttons
    are 8px, cards 12px — Vercel-class geometry with the chromatic spine
    doing the differentiation.
  influences:
    - name: 'SQLite logo blue'
      role: "The glowing-cyan signal hue traces back to SQLite's documentation aesthetic; Turso modernises it to CRT brightness."
      url: https://www.sqlite.org
    - name: 'Neon'
      role: 'Adjacent edge-database design language — both anchor on near-black canvases with a single bright accent.'
      url: https://neon.com
    - name: 'Vercel'
      role: 'Inter at 700 with negative tracking, 8px button radius, generous vertical rhythm.'
      url: https://vercel.com
    - name: 'CRT phosphor displays'
      role: 'The literal glowing-cyan-on-black aesthetic borrowed from CRT terminal colour-ways.'
      url: https://en.wikipedia.org/wiki/Cathode-ray_tube

dark-mode: native    # Turso ships dark-only — the CRT-glow aesthetic depends on the deep-teal canvas
---

## 1. Visual Theme & Atmosphere

Turso's home page opens on a `#0f1419` canvas — a deep teal-black that
sits between Neon's pure near-black and Supabase's forest-green. The
brand cyan `#00face` (the hex literally reads "FACE") carries every
primary action and live indicator. The page reads like the marketing
equivalent of a glowing-edge-node dashboard. The first impression is
**SQLite at the edge, rendered as CRT phosphor** — a brand that took
the metaphor seriously enough to make it the substrate.

The supporting emerald palette (`#1ebca1`, `#23765f`, `#1e6952`,
`#29886e`) gives Turso four shades of green-teal for tinted panels,
badge backgrounds, and feature blocks — a chromatic ladder broader
than most single-accent dev brands. This breadth is what differentiates
Turso from Neon: Neon's mint is a single-accent commitment, while
Turso's cyan-emerald scale offers a tonal vocabulary across the whole
chromatic family.

The mood is **glowing edge node**. The cyan accent reads as a literal
status indicator — when it appears next to a region label, you read
it as "live replica online." Mono numerals carry replication metrics
(latency to nearest replica, region count, query latency); the
emerald-tinted feature panels function as section emphasis without
breaking from the canvas's chromatic family.

There is no skeuomorphic 3D, no decorative gradient mesh, no neon-
glow effect outside the focus ring. Turso's brand identity comes from
chromatic discipline (cyan + emerald + near-black) and typographic
restraint (Inter + mono, no display experiments). The brand-as-pun
(`#00face`) is the wink that tells you a developer designed this
brand for developers.

**Key Characteristics**

- Deep teal-black canvas (`#0f1419`) with CRT-bright cyan accent (`#00face`)
- Brand hex literally spells "FACE" — a self-referential developer wink
- Emerald tonal scale (`#1ebca1`, `#23765f`, `#1e6952`, `#29886e`) for tinted panels
- Inter display + body, Fira Code or JetBrains Mono for code/metrics
- 8px button radius + 12px card radius (Vercel-class geometry)
- Cyan reserved for primary action and live indicators only
- Mono with `tnum` and `zero` features for replication metrics
- Edge-node map visualization as signature layout element
- Dark-only — no light variant
- Region pills using mono labels with cyan dot indicators

## 2. Color Palette & Roles

### Primary

- **Background** (`#0f1419`) [→ `--turso-bg`]: deep teal-black canvas — the brand's substrate
- **Background Deep** (`#0a0e12`): deeper variant for footer and full-bleed transitions
- **Primary Text** (`#ffffff`): full white on the deep-teal canvas
- **Primary CTA Fill** (`#00face`): CRT-bright cyan

### Brand & Dark

- **Brand Cyan** (`#00face`): the brand's defining hue — literal hex "FACE"
- **Brand Hover** (`#00fbcf`): slightly more saturated on hover
- **Brand Pressed** (`#00d8b0`): pressed state
- **Brand Deep** (`#00a890`): deeper cyan for icons and emphasized strokes
- **Brand Glow** (`#00face33`): 20% wash for hover backgrounds
- **On-Brand Text** (`#0f1419`): deep teal text on cyan fill — 13.8:1 AAA

### Accent

- **Emerald** (`#1ebca1`) [→ `--turso-emerald`]: mid-emerald, used for status and feature labels
- **Emerald Deep** (`#23765f`): darker emerald for tinted panel backgrounds
- **Emerald Mid** (`#1e6952`): deeper still for nested panels
- **Emerald Mute** (`#29886e`): muted emerald for subtle accents
- **Emerald Soft** (`#1ebca11f`): 12% emerald wash

### Interactive

- **Link** (`#00face`): links use the brand cyan (the brand assumes most links go to documentation)
- **Link Hover** (`#00fbcf`)
- **Link Visited** (`#00d8b0`)
- **Selected** (`#00face26`): 15% cyan wash
- **Disabled** (`#283945`)
- **Disabled Text** (`#586876`)

### Neutral Scale

- **Text Heading** (`#ffffff`): full white
- **Text Body** (`#ffffff`): full white
- **Text Muted** (`#9ba3a8`): secondary copy, captions
- **Text Soft** (`#6b7882`): tertiary
- **Text Faint** (`#4a5560`): quaternary
- **Text Disabled** (`#586876`)

### Surface & Borders

- **Surface** (`#182228`) [→ `--turso-surface`]: card surface
- **Surface Alt** (`#18222b`): secondary panel
- **Surface Tinted** (`#183134`): tinted teal feature panel — Turso's chromatic surface
- **Surface Tinted 2** (`#1c2b34`): mid-tone tint
- **Surface Tinted 3** (`#1e3338`): deeper tint
- **Border** (`#1f2a33`) [→ `--turso-border`]: solid hairline
- **Border Soft** (`#283945`): lighter border
- **Border Strong** (`#3a4a55`): emphasized border on hover
- **Border Brand** (`#00face66`): 40% cyan on focus

### Shadow Colors

Shadows are pure-black at varying alpha. The brand never tints standard shadows — depth stays neutral so the cyan accent reads as foreground action:

- **Ambient** (`rgba(0,0,0,0.35)`): low resting
- **Standard** (`rgba(0,0,0,0.55)`): card hover
- **Elevated** (`rgba(0,0,0,0.7)`): popover
- **Deep** (`rgba(0,0,0,0.8)`): modal
- **Glow** (`rgba(0,250,206,0.4)`): cyan focus glow only

### Semantic

- **Success** (`#1ebca1`): success uses emerald (distinct from brand cyan, but in the same chromatic family)
- **Success Bg** (`#0f3a2e`): dark emerald surface
- **Warning** (`#f5a623`): amber — only colour outside the cyan-emerald family
- **Warning Bg** (`#3a2710`)
- **Danger** (`#ff5c5c`): coral red
- **Danger Bg** (`#3a1818`)
- **Info** (`#00face`): info uses brand cyan
- **Info Bg** (`#0a3539`): dark teal surface

## 3. Typography Rules

### Font Family

- **Display & Body**: Inter — same family throughout
- **Mono**: Fira Code (preferred for ligatures), JetBrains Mono fallback
- **OpenType**: `ss01` (alternate single-storey g) on Inter; `tnum` (tabular numerals) and `zero` (slashed zero) on mono throughout metrics, region labels, code

### Hierarchy

| Role | Font | Size | Weight | Line Height | Letter Spacing | OT Features | Notes |
|------|------|------|--------|-------------|----------------|-------------|-------|
| display-hero | display | 88 | 700 | 1.0 | -0.035em | ss01 | hero only |
| display-large | display | 64 | 700 | 1.05 | -0.025em | ss01 | section opener |
| h1 | display | 48 | 700 | 1.1 | -0.022em | ss01 | page title |
| h2 | display | 36 | 700 | 1.15 | -0.02em | — | feature heading |
| h3 | display | 22 | 600 | 1.3 | -0.01em | — | sub-feature |
| h4 | display | 18 | 600 | 1.35 | -0.005em | — | card title |
| body-large | body | 17 | 400 | 1.55 | 0 | — | hero supporting |
| body | body | 15 | 400 | 1.55 | 0 | — | default — slightly tighter than 16 |
| body-small | body | 13 | 400 | 1.45 | 0 | — | dense feature blocks |
| label-mono | mono | 12 | 500 | 1.3 | 0.04em | zero, tnum | eyebrow, region tag |
| button | body | 15 | 500 | 1.0 | 0 | — | primary/ghost |
| button-small | body | 13 | 500 | 1.0 | 0 | — | dense controls |
| link | body | 15 | 500 | 1.55 | 0 | — | inline link |
| metric | mono | 32 | 500 | 1.05 | -0.01em | zero, tnum | replication metric callout |
| caption | body | 13 | 400 | 1.4 | 0 | — | footnote |
| caption-small | body | 12 | 400 | 1.35 | 0 | — | metadata |
| micro | body | 11 | 500 | 1.3 | 0.05em | — | badge |
| code-body | mono | 13 | 400 | 1.55 | 0 | zero | code blocks |
| code-bold | mono | 13 | 600 | 1.55 | 0 | zero | emphasized id |
| code-label | mono | 11 | 500 | 1.3 | 0.05em | zero, tnum | region/branch label |

### Principles

- **Mono with `tnum` for metrics**: replication latency, region count, query time — every numeric typeset for column-alignment
- **Slashed zero on mono**: `zero` enabled to disambiguate `0` from `O` in identifiers and connection strings
- **Single-family discipline**: Inter handles both display and body — chromatic cyan does the work of typographic differentiation
- **Tight tracking on display**: -0.022em to -0.035em compresses the headline for confidence
- **Body 15px, not 16px**: matches dense-tooling rhythm; only hero-supporting copy uses 17px
- **`ss01` continuity**: alternate g feature shared between display and body for type consistency
- **No serif anywhere**: Turso's brand is committedly sans + mono — no editorial-serif moments
- **Mono labels in micro size**: region pills use 11–12px mono with positive tracking for legibility at small sizes

## 4. Component Stylings

### Buttons

**button-primary** — Cyan primary
- Background: `#00face`
- Text: `#0f1419` at 15/500 (deep-teal text for max contrast)
- Padding: 10px 16px
- Radius: 8
- Border: none
- Hover: bg → `#00fbcf`, subtle 1.005× scale
- Active: bg → `#00d8b0`
- Focus: 2px solid `#00face` ring, 2px offset
- Use: primary CTA — "Get started", "Sign up", "Try Turso"

**button-ghost** — Outlined
- Background: transparent
- Text: `#ffffff` at 15/500
- Padding: 10px 16px
- Radius: 8
- Border: 1px solid `#283945`
- Hover: border → `#3a4a55`, bg → rgba(255,255,255,0.04)
- Use: secondary action — "Documentation", "Sign in"

**button-danger**
- Background: transparent
- Text: `#ff5c5c` at 15/500
- Padding: 10px 16px
- Radius: 8
- Border: 1px solid rgba(255,92,92,0.4)
- Hover: bg → rgba(255,92,92,0.08)
- Use: destructive action

**button-link** — Bare link
- Background: transparent
- Text: `#00face` at 15/500
- Padding: 0
- Hover: text → `#00fbcf`, underline grows from 0 → 1px

### Cards

**card-default**
- Background: `#182228`
- Padding: 24px
- Radius: 12
- Border: 1px solid `#1f2a33`
- Shadow: ambient
- Hover: border → `#283945`, shadow → standard
- Use: feature card, region card, pricing tier

**card-tinted** — Tinted teal feature panel
- Background: `#183134`
- Padding: 24px
- Radius: 12
- Border: none
- Use: section-emphasis feature block

### Badges / Tags / Pills

**badge-tag**
- Background: `#183134`
- Text: `#1ebca1` at 11/500 micro
- Padding: 2px 10px
- Radius: pill (9999)
- Use: tag, region label

**badge-live** — Live replica indicator
- Background: transparent
- Text: `#00face` at 11/500 mono with `zero` feature
- Padding: 2px 10px
- Radius: pill
- Border: 1px solid rgba(0,250,206,0.3)
- Use: "live", "online", with optional cyan dot

### Inputs / Forms

**input-text**
- Background: `#0a0e12`
- Text: `#ffffff` at 15/400
- Placeholder: `#586876`
- Padding: 10px 14px
- Radius: 8
- Border: 1px solid `#283945`
- Focus: border → `#00face`, ring 2px solid rgba(0,250,206,0.3)

### Navigation

**nav-link**
- Background: transparent
- Text: `#9ba3a8` at 14/500
- Padding: 8px 12px
- Hover: text → `#ffffff`
- Active: text → `#00face`

### Decorative

**status-dot** — Cyan live indicator
- 6px circle in `#00face`
- Optional 0 0 8px rgba(0,250,206,0.5) glow on live state
- Use: next to region/branch labels in `badge-live`

**edge-map** — Global replica visualization
- Dark canvas (`#0a0e12`) with subtle world-map paths
- Cyan `#00face` dots at replica regions, 4–6px diameter
- Optional pulse animation on dots (disabled with reduced-motion)
- Connection lines between dots in 1px rgba(0,250,206,0.2)
- Use: hero or product-section visualization

**code-block**
- Background: `#0a0e12`
- Text: `#ffffff` at code-body (13/400 Fira Code)
- Padding: 16px 20px
- Radius: 8
- Border: 1px solid `#1f2a33`
- Inline backticks render in `#00face` cyan on rgba(0,250,206,0.1) wash

## 5. Layout Principles

### Spacing System

- **Base unit**: 4px
- **Scale**: 2, 4, 8, 12, 16, 20, 24, 32, 40, 48, 64, 80, 96, 128
- **Density observation**: Turso's grid is **moderate density** — denser than Render's spacious whitespace, looser than PlanetScale's terminal density. Sections at 64–96px, feature blocks at 16–24px

### Grid & Container

- **Page width**: 1280px max
- **Prose width**: 720px (documentation, marketing body)
- **Hero treatment**: full-bleed deep-teal canvas with the edge-map visualization spanning the hero
- **Feature grid**: 3-col at desktop, 2-col at tablet, 1-col at mobile

### Whitespace Philosophy

- Whitespace is functional — generous between sections, dense within feature blocks
- The dark canvas itself functions as whitespace — chromatic depth, not flat colour
- The edge-map visualization is the page's most decorative moment; everywhere else is restrained

### Section Cadence

- Hero (deep-teal canvas + edge-map) → feature grid → tinted teal feature panel → product detail → pricing → footer
- The tinted teal panels function as section-break devices, not full backgrounds
- The cyan accent stays foregrounded — it never anchors a section background

## 6. Shapes & Radius Scale

| Tier | Px | Use |
|------|----|----|
| Micro | 2 | inline pills, tight chips |
| Standard | 4 | small badges, status pills |
| Comfortable | 8 | buttons, inputs |
| Relaxed | 12 | cards |
| Featured | 16 | hero shells, feature blocks |
| Large | 20 | signature illustrative panels |
| Pill | 9999 | region pills, status pills, avatars |

Compound radii are rare; when used, footer cards drop the bottom radius (`12 12 0 0`) to merge with the footer.

## 7. Depth & Elevation

| Level | Treatment | Use |
|-------|-----------|----|
| 0 | flat | hero copy on canvas |
| 1 | 1px solid `#1f2a33` border | inline cards, code blocks |
| 2 | 1px border + ambient shadow | feature cards |
| 3 | standard shadow (0 8px 16px -4px) | hover state |
| 4 | elevated shadow (0 18px 36px -12px) | popover, dropdown |
| 5 | deep shadow (0 30px 60px -16px) | modal |

**Shadow Philosophy**: shadows are pure-black at varying alpha — depth stays chromatically neutral so the cyan accent foregrounds as action. The only chromatic shadow is the cyan focus glow (`rgba(0,250,206,0.4)`), reserved for the focus ring on interactive controls. Multi-layer shadows at level 4+ soften edges without introducing chromatic noise.

## 8. Interaction & Motion

### Easing

- **Standard**: `cubic-bezier(0.4, 0, 0.2, 1)` — default
- **Emphasized**: `cubic-bezier(0.2, 0, 0, 1)` — page transitions
- **Decelerate**: `cubic-bezier(0, 0, 0.2, 1)` — tooltips

### Durations

- **Fast** (120ms): hover, focus
- **Standard** (200ms): card lift, button press
- **Slow** (320ms): modal enter, edge-map pulse cycle

### Per-Component Recipes

- **Button hover**: bg colour transitions over 120ms; subtle 1.005× scale
- **Card hover**: border opacity lifts, shadow intensifies, over 200ms
- **Edge-map dot pulse**: opacity 0.5 → 1.0 over 1.5s ease-in-out infinite; staggered across regions
- **Status dot live pulse**: opacity 0.6 → 1.0 over 1.2s ease-in-out infinite (disabled with reduced-motion)
- **Link hover**: underline grows from 0 → 1px over 120ms

### Page Transitions

- Default: opacity-only fade over 320ms emphasized

### Reduced Motion

When `prefers-reduced-motion: reduce` is set:

- Edge-map dot pulses become static
- Status dot live pulses disabled
- Card hover scale removed
- All transitions reduce to opacity

## 9. Accessibility & A11y

### Contrast Pairs

- **White on `#0f1419` bg**: 17.4:1 (AAA)
- **White on `#182228` surface**: 14.6:1 (AAA)
- **Cyan `#00face` on `#0f1419`**: 14.6:1 (AAA)
- **Deep-teal `#0f1419` on cyan `#00face` brand**: 13.8:1 (AAA)
- **Emerald `#1ebca1` on `#0f1419`**: 8.4:1 (AAA)
- **Muted `#9ba3a8` on `#0f1419`**: 6.4:1 (AA)
- **Soft `#6b7882` on `#0f1419`**: 3.6:1 (AA Large only)

### Focus Indicators

- Default: 2px solid `#00face` ring, 2px offset
- Inputs: focus border → `#00face` + ring 2px solid rgba(0,250,206,0.3)
- Always visible

### ARIA Patterns

- **Combobox**: standard listbox pattern
- **Dialog**: aria-labelledby + aria-describedby; trap focus; ESC to close
- **Region pills**: aria-label spelling region (e.g., "Region: Frankfurt — fra")
- **Live indicators**: aria-label="Live" or "Online" — never colour-only

### Keyboard Navigation

- Tab order follows visual order
- Skip-link at page top
- Enter/Space activates buttons
- Cmd/Ctrl+K opens command palette
- Arrow keys navigate within tab groups

### Screen Reader Hints

- Edge-map decorative — `aria-hidden="true"`
- Status colour always paired with text label
- Mono code uses `<code>` semantic

### Reduced Motion

`prefers-reduced-motion: reduce` honored — see §8.

## 10. Responsive Behavior

### Breakpoints

| Name | Min Width | Use |
|------|-----------|----|
| Mobile | — | default |
| Tablet | 640 | 2-col grids |
| Desktop | 1024 | 3-col grids |
| Wide | 1280 | max page width |
| Ultra | 1536 | hero-only |

### Touch Targets

- Minimum 44×44px for primary controls
- Status dots remain 6px visual; hit-area expands to 24×24px

### Collapsing Strategy

- **Nav**: collapses to hamburger ≤ 768px
- **Feature grid**: 3-col → 2-col @ 1024 → 1-col @ 640
- **Hero**: display-hero (88px) reduces to 48px @ 640
- **Edge-map**: scales with hero; simplifies to fewer dots @ 640
- **Code blocks**: scroll horizontally on overflow

### Image Behavior

- Edge map is SVG, scales crisp
- Logos lock at intrinsic size
- Region flags scale with text

## 11. Content & Voice

### Tone

Technical-developer-friendly, slightly playful. Turso writes for backend developers who want the database punchline without the corporate wrapper. The brand-as-pun (`#00face`) is the giveaway — Turso writes the way a developer who likes their tools writes about their tools. Direct, occasionally wry, never preachy.

### Microcopy Patterns

- **Button verbs**: "Get started", "Try free", "Connect", "Replicate", "Deploy" — short and direct
- **Error message recipe**: `[noun] [failed verb]: [reason]` — e.g., "Replication failed: region unreachable"
- **Success confirmations**: `[noun] [verb-past] in [location]` — "Replica deployed in fra"
- **Empty states**: "No replicas yet. [CTA: Add your first edge replica]"

### CTA Verb Conventions

- Top-level: "Get started" or "Try free"
- Product: "Try Turso", "Replicate to the edge"
- Documentation: "Read the docs"
- Support: "Contact us"
- Sales: "Talk to sales"

## 12. Dark Mode & Theming

Turso is **dark-only**. The deep-teal canvas (`#0f1419`) and CRT-bright cyan accent are the brand — they don't translate to a light surface (the cyan loses its glow, the chromatic story collapses). The dashboard product runs the same dark-only palette.

If a light variant were ever needed for documentation legibility:
- `bg`: `#0f1419` → `#fafafa`
- `text`: `#ffffff` → `#0f1419`
- `surface`: `#182228` → `#f0f4f5` (light teal)
- `surface-tinted`: `#183134` → `#cfe7e2` (light emerald)
- `brand` stays `#00face` (works on light, but loses the CRT-glow effect)

The recommendation is **don't**. The deep-teal canvas is the brand.

## 13. Lineage & Influences

Turso's chromatic identity is built around a single piece of brand-as-pun: the primary cyan is `#00face`, a hex that literally spells the word **FACE**. That self-referential gag is the brand's wink at the developers it courts, and the colour itself — a CRT-bright cyan closer to `#00ffff` than to teal — gives the page a glowing-edge-node feel.

The deep-teal canvas `#0f1419` reads as the dark side of an edge server, while the supporting emerald scale (`#1ebca1`, `#1e6952`, `#23765f`) gives Turso a chromatic ladder rather than a single-accent palette. Where Neon commits to mint and PlanetScale to blood-red, Turso commits to **edge cyan** — bright, cool, glowing, immediately readable as "live replica online." Type is Inter, weights 600–700 for display, with mono carrying replication metrics. Buttons are 8px, cards 12px — Vercel-class geometry with the chromatic spine doing the differentiation.

- **SQLite logo blue** — https://www.sqlite.org — glowing-cyan signal hue, modernised to CRT brightness
- **Neon** — https://neon.com — adjacent edge-database design language
- **Vercel** — https://vercel.com — Inter at 700 with negative tracking, 8px button radius
- **CRT phosphor displays** — https://en.wikipedia.org/wiki/Cathode-ray_tube — literal glowing-cyan-on-black aesthetic

## 14. Do's and Don'ts

### Do

- **Do** reserve `#00face` for primary action and live indicators — it loses the "live replica online" semantic when used decoratively
- **Do** layer the emerald scale (`#1ebca1` → `#23765f` → `#1e6952`) for tinted panels and feature blocks
- **Do** keep the canvas at `#0f1419` — pure black collapses the teal undertone, lighter teals lose the near-black anchoring
- **Do** use mono with `tnum` and `zero` for replication metrics, region pills, code samples
- **Do** use the edge-map visualization as the hero's decorative moment
- **Do** pair status colour-coding with text labels for accessibility
- **Do** honor `prefers-reduced-motion` — disable edge-map and status-dot pulses
- **Do** keep section rhythm at 64–96px (denser than Render, looser than PlanetScale)
- **Do** use 8px button radius, 12px card radius (Vercel-class geometry)
- **Do** anchor body copy on `#9ba3a8` for muted, never below `#6b7882` for tertiary

### Don't

- **Don't** swap the cyan for a more conventional `#06b6d4` Tailwind cyan; Turso's `#00face` is brighter, slightly bluer, and self-referential
- **Don't** use the cyan and the emerald in the same component — they belong to different layers (action vs surface)
- **Don't** add purple or magenta accents; the palette is intentionally cool-only, teal-to-cyan-to-green
- **Don't** flip to light mode; Turso's identity depends on the deep-teal canvas
- **Don't** apply heavy chromatic shadows; depth stays neutral so cyan reads as foreground
- **Don't** use serif anywhere — Turso is committedly Inter + mono
- **Don't** use mono for body copy — mono is for metrics, identifiers, code, region labels only
- **Don't** mix the brand cyan with a glow gradient outside the focus ring — the cyan is flat-on-flat
- **Don't** introduce orange or red as primary chromatic accents — semantic colours only
- **Don't** soften the dark canvas above `#1c2b34`; lifting too much loses the edge-node aesthetic

## 15. Agent Prompt Guide

### Quick Color Reference

```
bg: #0f1419
bg-deep: #0a0e12
surface: #182228
surface-tinted: #183134
text: #ffffff
text-muted: #9ba3a8
brand: #00face
brand-hover: #00fbcf
accent-emerald: #1ebca1
border: #1f2a33
on-brand: #0f1419
```

### Example Component Prompts

1. "Create a hero section: deep teal-black `#0f1419` background, an 88px display-hero in white at 700 weight with -0.035em tracking and `ss01` alternate g enabled, body-large 17px subhead in `#9ba3a8`. Add a primary cyan button (`#00face` fill, `#0f1419` deep-teal text, 8px radius, 10px 16px padding) saying 'Get started' and a ghost button 'Read the docs' (transparent + `#283945` border)."

2. "Design an edge-map hero visualization: dark canvas (`#0a0e12`) with subtle world-map path strokes in rgba(255,255,255,0.05), 4–6px cyan `#00face` dots at replica regions with `0 0 8px rgba(0,250,206,0.5)` glow, 1px connection lines between dots in rgba(0,250,206,0.2). Add aria-hidden=true and a screen-reader text describing 'Map showing global edge replica regions.'"

3. "Build a region card: `#182228` background, 24px padding, 12px radius, 1px `#1f2a33` border. Inside: 6px live cyan dot, region label in 12px Fira Code with `zero` feature ('fra-1'), then 32px metric in mono with `tnum` ('5.2ms' replication latency), caption-small below 'Average replica latency.'"

4. "Create a code block: `#0a0e12` background, 13px Fira Code `#ffffff` body text with `zero` slashed-zero feature, 16px 20px padding, 8px radius, 1px `#1f2a33` border. Inline backticks within prose render in `#00face` cyan on rgba(0,250,206,0.1) wash."

5. "Design a feature panel: tinted teal `#183134` background, 24px padding, 12px radius, no border. Inside: 22px h3 in white at 600, 15px body in `#ffffff`, decorative `#1ebca1` emerald accent stripe on the left edge (4px wide). Optional cyan dot indicator in the top-right corner if the feature represents 'live edge.'"

6. "Build a pricing-tier card: `#182228` background, 24px padding, 12px radius, 1px `#1f2a33` border. Recommended tier wraps in `#183134` tinted background instead. Recommended badge: 'POPULAR' in 11px mono at 500 with 0.05em tracking, on `#00face` cyan pill. Primary CTA is the cyan button; secondary is ghost."

### Iteration Guide

1. **Start with the canvas** — `#0f1419` (deep teal-black), not `#000`, not graphite. The teal undertone is the brand
2. **Confirm the cyan is `#00face`** — not `#06b6d4` Tailwind cyan, not `#00ffff`. The literal "FACE" hex is the developer wink
3. **Build the emerald ladder** — `#1ebca1` → `#23765f` → `#1e6952` for tinted panels and feature blocks
4. **Reserve cyan for action and live state** — counting viewport cyan pixels; if more than ~5%, demote to emerald or muted text
5. **Mono on metrics** — replication latency, region counts, query times typeset in Fira Code with `tnum` and `zero`
6. **Use edge-map for hero decoration** — Turso's signature visualization; never repeat below the fold
7. **Tighten display tracking** — -0.022em to -0.035em on display
8. **Pair status colour with text** — never colour-only; aria-label spells region/state