Design System

Source of truth is DESIGN.md at the repo root. This page renders it visually. Keep them in sync when tokens change.

Philosophy

GAIA’s UI is dark-first, flat, and single-accent. Every decision flows from five constraints:

Dark-first. Primary experience is dark mode (#111111 background). Light mode is supported via CSS variables but is secondary.
Flat depth. Depth comes from layered backgrounds (zinc-800 → zinc-900) only. Never borders, rings, or outlines.
Single accent. One primary action color: #00bbff. Everything else is zinc-scale neutrals.
Borderless cards. Data cards use background-only separation — no border-, ring-, or outline- in the card tree.
Subtle motion. Animations serve entrance, exit, and state changes only. Never decorative. Keep durations ≤ 300ms.

Colors

Brand Tokens

Primary

Selection

Layout rule: Use --color-primary for CTAs, user chat bubbles, selection highlights, and links. Use --color-primary-bg / --color-secondary-bg for the main app canvas and sidebar. Never use these on dark card surfaces — use zinc directly there.

Semantic Variables (Shadcn / Radix)

Use on layout surfaces and standard components. Switch automatically between light and dark.

Variable	Light	Dark
`--background`	`hsl(0 0% 100%)`	`hsl(224 71% 4%)`
`--foreground`	`hsl(222.2 47.4% 11.2%)`	`hsl(213 31% 91%)`
`--muted`	`hsl(210 40% 96.1%)`	`hsl(223 47% 11%)`
`--muted-foreground`	`hsl(215.4 16.3% 46.9%)`	`hsl(215.4 16.3% 56.9%)`
`--accent`	`hsl(210 40% 96.1%)`	`hsl(216 34% 17%)`
`--border`	`hsl(214.3 31.8% 91.4%)`	`hsl(216 34% 17%)`
`--ring`	`hsl(215 20.2% 65.1%)`	`hsl(216 34% 17%)`
`--destructive`	`hsl(0 100% 50%)`	`hsl(0 63% 31%)`

Zinc Scale — Dark Card Surfaces

Use zinc directly on dark card surfaces — not the CSS variables above.

Surfaces

Text

Status Colors

Always use /10 opacity background paired with matching foreground text. Never solid.

Status

Priority

bg-emerald-400/10 text-emerald-400  // success
bg-amber-400/10  text-amber-400     // warning
bg-red-400/10    text-red-400       // error
bg-blue-400/10   text-blue-400      // info
bg-zinc-700/50   text-zinc-400      // pending

Never use solid color backgrounds for status badges — always /10 opacity background paired with matching text color.

Typography

Three font families. Never set font-family inline — use the Tailwind token class.

Token	Family	Weights	Use
`font-sans`	Inter	All	All UI — body, labels, buttons, inputs
`font-serif`	PP Editorial New	200, 400	Editorial headings, landing hero text
`font-mono`	Anonymous Pro	400, 700	Code blocks, `<code>`, technical content

Specimens

Inter — font-sans

The quick brown fox jumps

GAIA proactively manages your email, calendar, tasks, and workflows — so you don’t have to.

Light 300Regular 400Medium 500Semibold 600Bold 700

PP Editorial New — font-serif

The future of personal AI

is already here.

Ultralight 200Ultralight ItalicRegular 400Regular Italic

Anonymous Pro — font-mono

const gaia = await agent.run(“Summarize my inbox”);

Heading scale

Defined globally via @layer base — use semantic HTML tags, styles apply automatically.

Tag	Classes	Size
`<h1>`	`text-3xl font-bold`	30px
`<h2>`	`text-2xl font-bold`	24px
`<h3>`	`text-xl font-bold`	20px
`<h4>`	`text-lg font-bold`	18px
`<h5>`	`text-base font-bold`	16px
`<h6>`	`text-sm font-bold`	14px

Text patterns

// Uppercase section labels — settings, card headers, form groups
<p className="text-xs font-medium uppercase tracking-wider text-zinc-500">
  Section Title
</p>

// Truncation — always truncate in constrained containers
<span className="truncate">...</span>
<p className="line-clamp-2">...</p>
<p className="line-clamp-1 max-w-[200px]">...</p>

Inline code gets border-radius: 10px and padding: 4px globally. Use font-mono or .monospace class.

Spacing

Value	Use
`gap-1` / `gap-1.5`	Icon + label pairs
`gap-2`	Standard row items
`gap-3`	Section spacing inside cards
`space-y-2`	Vertical list of items inside a card
`p-3`	Inner card item padding
`p-4`	Outer card padding
`px-3` / `px-4`	Horizontal padding on inputs, buttons

Border Radius

Context	Class	Size
Dark cards — outer	`rounded-2xl`	16px
Dark cards — inner items	`rounded-2xl` or `rounded-xl`	12px
Images	`rounded-3xl`	24px
Buttons, inputs	`rounded-md`	6px
Badges, pills	`rounded-full`	—
Context menus	`rounded-xl`	12px

Never use rounded-lg on card containers — that’s the Shadcn base radius, visually too small. Cards always use rounded-2xl.

Depth & Elevation

Depth primarily from background layering and blur, not shadow.

Context	Value
Buttons, inputs	`shadow-xs`
Dialogs, sheets	`shadow-lg`
Dark cards (solid)	No shadow — flat design
Dark cards (glass)	`bg-zinc-800/40 backdrop-blur-xl`
Hover on dark surfaces	`hover:bg-white/5`

Level	Class	Use
Moderate	`backdrop-blur-lg`	Glass cards
Standard	`backdrop-blur-xl`	Panels overlaying content, floating cards
Maximum	`backdrop-blur-2xl`	Search overlays, full-screen modals

Dark Card System

All data cards, tool sections, and info panels use this contract. Two-tone zinc depth, no borders.

Template

"use client";

const statusClasses = {
  success: "bg-emerald-400/10 text-emerald-400",
  error:   "bg-red-400/10 text-red-400",
  warning: "bg-amber-400/10 text-amber-400",
  info:    "bg-blue-400/10 text-blue-400",
  pending: "bg-zinc-700/50 text-zinc-400",
} as const;

export default function MyCard({ title, items, badge }) {
  return (
    <div className="rounded-2xl bg-zinc-800 p-4 w-fit min-w-[400px]">
      <div className="flex items-center justify-between mb-3">
        <p className="text-sm font-semibold text-zinc-100">{title}</p>
        {badge && (
          <span className="rounded-full bg-zinc-700/50 px-2 py-0.5 text-xs text-zinc-400">
            {badge}
          </span>
        )}
      </div>
      <div className="space-y-2">
        {items.map((item) => (
          <div key={item.id} className="rounded-2xl bg-zinc-900 p-3">
            <div className="flex items-center justify-between gap-2">
              <span className="text-sm font-medium text-zinc-200">{item.label}</span>
              <span className={`rounded-full px-2 py-0.5 text-xs ${statusClasses[item.status]}`}>
                {item.value}
              </span>
            </div>
            {item.meta && <p className="text-xs text-zinc-500 mt-1">{item.meta}</p>}
          </div>
        ))}
      </div>
    </div>
  );
}

Live preview

Recent Activity4 items

Deploy pipelineSuccess

2 minutes ago

Memory syncWarning

12 minutes ago

Email batchInfo

1 hour ago

Layer reference

Layer	Classes
Outer container	`rounded-2xl bg-zinc-800 p-4 w-fit min-w-[400px]`
Outer (accordion)	`rounded-2xl bg-zinc-800 p-3 py-0`
Inner item	`rounded-2xl bg-zinc-900 p-3`
Inner item compact	`rounded-xl bg-zinc-900 p-3`
Glass variant	`rounded-2xl bg-zinc-800/40 p-4 backdrop-blur-xl`
Section header	`text-sm font-semibold text-zinc-100 mb-3`
Item title	`text-sm font-medium text-zinc-200`
Item title (prominent)	`text-sm font-medium text-zinc-100`
Body text	`text-xs text-zinc-400`
Meta / timestamp	`text-xs text-zinc-500`
Item spacing	`space-y-2`
Status badge	`rounded-full px-2 py-0.5 text-xs` + status color
Section divider	`<Divider className="bg-zinc-700/50" />` (HeroUI)
Hoverable list item	`p-4 transition-all hover:bg-white/5`

Constraints: Never border-, ring-, outline- anywhere in the card tree. rounded-2xl on outer containers always. zinc-800 outer → zinc-900 inner is the entire separation mechanism. Status colors always use /10 opacity backgrounds.

Icons

All icons come from @icons (@theexperiencecompany/gaia-icons). Never raw SVGs.

import { CheckmarkCircle02Icon, Alert01Icon, Copy01Icon } from "@icons";

Icons accept className, height, width, and size props.

Context	Value
Inline (badges, text)	`height={17}`
Action buttons	`size={16}`
Prominent / decorative	`size={24}`

// In a button
<Button variant="ghost" size="icon">
  <Copy01Icon className="h-4 w-4" />
</Button>

// In a chip / badge
<Alert01Icon className="text-warning-500" height={17} />

// With hover animation
<SomeIcon className="transition-all duration-200 group-hover:scale-110" />

Never use Unicode/text symbols in JSX: no →, ↗, •, ✓, ×, or similar. Always use icon components from @icons.

Animations

Available classes

Class	Duration	Use
`animate-spin`	Infinite	Loading spinner
`animate-pulse`	Infinite	Skeleton placeholder
`animate-accordion-down`	0.2s ease-out	Accordion open
`animate-accordion-up`	0.2s ease-out	Accordion close
`animate-scale-in`	0.4s bounce	Element entrance
`animate-scale-in-blur`	0.5s bounce	Blurred entrance
`animate-shimmer`	2s linear	Shimmer effect
`animate-shake`	0.7s	Error shake

Transitions

Default: transition-all duration-200. Use this everywhere unless a specific property needs targeting.

Scenario	Classes
All properties	`transition-all duration-200`
Color only	`transition-colors duration-200`
Button press	`active:scale-95 transition-all! duration-300`

Easing

Name	Value	Use
Default	`ease`	Most transitions
Exit / entrance	`ease-out`	Entrances, exits
Bounce	`cubic-bezier(0.34, 1.56, 0.64, 1)`	`scale-in`, `scale-in-blur`

Framer Motion

Import from motion/react — not framer-motion. AnimatePresence is required for exit animations. Keep durations ≤ 300ms for micro-interactions, ≤ 500ms for entrances.

import { AnimatePresence, m } from "motion/react";

<AnimatePresence mode="wait">
  {visible && (
    <m.div initial={{ opacity: 0 }} animate={{ opacity: 1 }} exit={{ opacity: 0 }}>
      {content}
    </m.div>
  )}
</AnimatePresence>

Toast / Notifications

Sileo — already mounted globally. Call the toast function directly. Never add <Toaster> or import from sonner / react-hot-toast. Toast style: dark fill (#262626), white title, white/75 description, top-right position. Action button colors apply automatically by type: error → red, warning → amber, success → green, info → blue.

import { toast } from "@/lib/toast";

toast.success("File saved");
toast.error("Something went wrong");
toast.warning("Storage almost full");
toast.info("New message received");

Component Library

Shadcn UI
HeroUI
Overlay hierarchy

Style preset: new-york · Base color: zinc · CSS variables: on · Located at src/components/ui/

Component	Key details
`Button`	`default` `destructive` `outline` `secondary` `ghost` `link` · sizes: `default` `sm` `lg` `icon`
`Input`	`h-9 rounded-md shadow-xs` · focus ring · `aria-invalid` for errors
`Textarea`	Same as Input · `min-h-16` · auto-height via `field-sizing-content`
`Dialog`	Zoom + fade · use for confirmations, forms requiring focus
`Sheet`	Fade-in slide panel · use for side panels, settings drawers
`Popover`	Anchored overlay · use for inline pickers, contextual options
`Tooltip`	Hover label only — no interactive content
`DropdownMenu` / `ContextMenu`	Action lists
`Accordion`	Animated expand/collapse
`Avatar`	`rounded-full`, image + fallback
`Skeleton`	`animate-pulse rounded-md`
`ScrollArea`	Radix scrollable with edge shadows
`Sidebar`	Collapsible · `Cmd/Ctrl+B` toggle · cookie-persisted

Used for richer UI inside cards. Located at @heroui/*.

Component	Standard usage
`Chip`	Status badges · `variant="flat"` always
`Button`	Card actions · `variant="flat"` or `variant="solid"`
`Accordion` / `AccordionItem`	Expandable card sections
`Progress`	Progress bars
`Tabs` / `Tab`	Tabbed card content
`Avatar`	Contact / user avatars
`ScrollShadow`	Wraps overflowing lists

Chart palette (Recharts): ["#a78bfa", "#34d399", "#60a5fa", "#f472b6", "#fb923c"]

Pick the right overlay for the context:

Use case	Component
Destructive confirmation, focused form	`Dialog`
Side panel, settings, multi-step flow	`Sheet`
Inline picker, date selector, contextual detail	`Popover`
Single-line label on hover	`Tooltip`
Action list from a trigger	`DropdownMenu`
Right-click actions	`ContextMenu`

Styling Tools

// cn() — always use for conditional class merging, never string concatenation
import { cn } from "@/lib/utils";
<div className={cn("base-class", condition && "conditional-class", className)} />

// cva — for components with multiple visual variants
import { cva } from "class-variance-authority";
const cardVariants = cva("rounded-2xl p-4", {
  variants: {
    depth: {
      outer: "bg-zinc-800",
      inner: "bg-zinc-900",
    },
  },
});

Forms & Validation

Field pattern

<FormField
  control={form.control}
  name="fieldName"
  render={({ field }) => (
    <FormItem>
      <FormLabel>Label</FormLabel>
      <FormControl>
        <Input placeholder="..." {...field} />
      </FormControl>
      <FormMessage />  {/* auto-shows error */}
    </FormItem>
  )}
/>

Input states

Error state is driven by aria-invalid={!!error} — styling applies automatically via the Input component.

State	Visual
Default	`border-input bg-transparent`
Focus	`ring-ring/50 ring-[3px] border-ring`
Error	`ring-destructive/20 border-destructive` (via `aria-invalid`)
Disabled	`opacity-50 cursor-not-allowed`
Loading	`cursor-wait` (set `disabled` on the input)

Loading & Empty States

Loading

Pattern	When
`<Skeleton className="h-4 w-32 rounded-md" />`	Known content shape, replacing text/images
`animate-pulse` on the container	Unknown shape, shimmer a region
`animate-spin` on an icon	Inline action in progress
Full `<LoadingIndicator />`	Whole chat response pending

Skeleton inherits: bg-accent animate-pulse rounded-md. Match the skeleton shape to the content it replaces.

Empty states

No shared component — build inline:

<div className="flex flex-col items-center gap-2 py-8 text-center">
  <SomeIcon className="text-zinc-600" size={24} />
  <p className="text-sm text-zinc-400">No items yet</p>
  <p className="text-xs text-zinc-500">Optional sub-text</p>
</div>

Interactive States

State	Classes
Hover (standard)	`hover:bg-accent` · `hover:bg-primary/90` · `hover:opacity-80`
Hover (dark surface)	`hover:bg-white/5`
Focus visible	`focus-visible:ring-ring/50 focus-visible:ring-[3px] focus-visible:border-ring`
Active / press	`active:scale-95`
Disabled	`disabled:opacity-50 disabled:pointer-events-none disabled:cursor-not-allowed`
Error	`aria-invalid:ring-destructive/20 aria-invalid:border-destructive`
Hover reveal	`opacity-0 transition-all group-hover:opacity-100` (parent needs `group`)

Dark / Light Mode

Class-based: .dark on <html>. Tailwind dark: modifier works everywhere.

Layout surfaces → bg-background text-foreground (auto-switches via CSS vars)
Dark cards → bg-zinc-800 / bg-zinc-900 (always dark — no dark: needed)
Explicit overrides → only when CSS variables don’t cover it
Brand cyan (#00bbff) is the same in both modes

Responsiveness

Breakpoint	Value	Impact
Mobile	`max-width: 600px`	Full-width layouts, larger tap targets
Tablet	`max-width: 990px`	Navbar becomes full-width strip
`md:`	768px	Text size shifts (`text-base` → `text-sm`)

Core layout does not use lg:, xl:, or 2xl: breakpoints.

Scrollbars

Global scrollbar is already styled (8px, pill-shaped, zinc-700 thumb). Use .no-scrollbar to suppress chrome on scroll areas where it would be distracting.

Rules

rounded-2xl on all outer card containers
zinc-800 outer → zinc-900 inner for card depth
/10 opacity backgrounds for all status colors
Import icons from @icons
cn() for all conditional class merging
transition-all duration-200 as the default transition
AnimatePresence for exit animations
Import from motion/react
import { toast } from "@/lib/toast"

Don’t

border-, ring-, or outline- anywhere in a card tree
rounded-lg on card containers
Solid backgrounds for status badges
Unicode symbols in JSX (→, •, ✓) — use icons
Add <Toaster> — already mounted globally
Import from sonner or react-hot-toast
CSS variables on dark card surfaces — use zinc directly
Set font-family inline — use Tailwind token classes
Import from framer-motion — use motion/react

Get Started

CLI

Self-Hosting

Developers

Messaging Platforms (Bots)

Extra Developer Config

Documentation Index

​Philosophy

​Colors

​Brand Tokens

​Semantic Variables (Shadcn / Radix)

​Zinc Scale — Dark Card Surfaces

​Status Colors

​Typography

​Specimens

​Heading scale

​Text patterns

​Spacing

​Border Radius

​Depth & Elevation

​Dark Card System

​Template

​Live preview

​Layer reference

​Icons

​Animations

​Available classes

​Transitions

​Easing

​Framer Motion

​Toast / Notifications

​Component Library

​Styling Tools

​Forms & Validation

​Field pattern

​Input states

​Loading & Empty States

​Loading

​Empty states

​Interactive States

​Dark / Light Mode

​Responsiveness

​Scrollbars

​Rules

Philosophy

Colors

Brand Tokens

Semantic Variables (Shadcn / Radix)

Zinc Scale — Dark Card Surfaces

Status Colors

Typography

Specimens

Heading scale

Text patterns

Spacing

Border Radius

Depth & Elevation

Dark Card System

Template

Live preview

Layer reference

Icons

Animations

Available classes

Transitions

Easing

Framer Motion

Toast / Notifications

Component Library

Styling Tools

Forms & Validation

Field pattern

Input states

Loading & Empty States

Loading

Empty states

Interactive States

Dark / Light Mode

Responsiveness

Scrollbars

Rules