shadcn/ui (New York)

---
version: "alpha"
name: "shadcn/ui (New York)"
description: "shadcn/ui (New York) visual system, translated from the Claude Artisan catalog for use in digital products. Neutral, refined, subtle borders and rings; Small radius (0.5rem), muted zinc/slate palette"
colors:
  primary: "#18181b"
  background: "#ffffff"
  surface: "#ffffff"
  text: "#09090b"
  accent: "#2563eb"
  on-primary: "#FFFFFF"
  on-surface: "#000000"
  on-accent: "#FFFFFF"
typography:
  h1:
    fontFamily: "'Geist', 'Inter', system-ui, sans-serif"
    fontSize: "4rem"
    fontWeight: "700"
    lineHeight: "1.05"
  body-md:
    fontFamily: "'Geist', 'Inter', system-ui, -apple-system, sans-serif"
    fontSize: "1rem"
    fontWeight: "400"
    lineHeight: "1.6"
  label-caps:
    fontFamily: "'Geist', 'Inter', system-ui, -apple-system, sans-serif"
    fontSize: "0.75rem"
    fontWeight: "600"
    letterSpacing: "0.06em"
rounded:
  sm: "0.375rem"
  md: "0.5rem"
  lg: "0.75rem"
spacing:
  sm: "8px"
  md: "16px"
  lg: "32px"
components:
  button-primary:
    backgroundColor: "{colors.primary}"
    textColor: "{colors.on-primary}"
    rounded: "{rounded.md}"
    padding: "16px"
  button-secondary:
    backgroundColor: "{colors.accent}"
    textColor: "{colors.on-accent}"
    rounded: "{rounded.md}"
    padding: "16px"
  card:
    backgroundColor: "{colors.surface}"
    textColor: "{colors.on-surface}"
    rounded: "{rounded.lg}"
    padding: "24px"
  page:
    backgroundColor: "{colors.background}"
    textColor: "{colors.text}"
    padding: "16px"
---
## Overview

shadcn/ui (New York) visual system, translated from the Claude Artisan catalog for use in digital products. Neutral, refined, subtle borders and rings; Small radius (0.5rem), muted zinc/slate palette

- **Category:** flat-platform
- **Era:** 2023–present
- **Origin:** shadcn/ui (Radix + Tailwind) by shadcn; default of countless 2023+ apps.
- **Reference:** shadcn/ui showcase; Vercel/Cal.com-style apps.
- **Structural base:** shell de aplicação com navegação e cartões

**Defining traits:**
- Neutral, refined, subtle borders and rings
- Small radius (0.5rem), muted zinc/slate palette
- Accessible Radix primitives
- Understated developer-favorite polish

## Colors

- **bg** — #ffffff
- **surface** — #ffffff
- **surface-strong** — #f4f4f5
- **border** — #e4e4e7
- **text** — #09090b
- **text-muted** — #71717a
- **primary** — #18181b
- **accent** — #2563eb
- **ring** — #a1a1aa

## Typography

- Display: 'Geist', 'Inter', system-ui, sans-serif
- Body: 'Geist', 'Inter', system-ui, -apple-system, sans-serif
- Mono: 'Geist Mono', ui-monospace, 'SFMono-Regular', monospace

## Layout

- shell de aplicação com navegação e cartões
- Use a responsive grid and preserve content hierarchy.
- Collapse columns below 768px without horizontal overflow.

## Elevation & Depth

- Neutral, refined, subtle borders and rings; Small radius (0.5rem), muted zinc/slate palette; Accessible Radix primitives; Understated developer-favorite polish; sombras e elevação

## Shapes

- Radius scale: 0.375rem, 0.5rem, 0.75rem.

## Components

- Buttons keep visible focus and predictable hover/pressed states.
- Cards use the surface and radius scale from the tokens.
- Forms expose persistent labels, textual errors, and keyboard focus.

## Do's and Don'ts

- Do: follow the tokens and the structural composition.
- Do: maintain WCAG AA contrast and `prefers-reduced-motion`.
- Avoid: using the style as decoration without functional hierarchy.

Act as a Senior Frontend Engineer and Expert UI Designer.
Your task is to code a complete Landing Page on the first attempt.
- Landing Page Theme: <INSERT THEME>
- Sections to add: <INSERT SECTIONS>

Generate the final code immediately following these definitions:

## Style

- **Name:** shadcn/ui (New York)
- **Type:** claude-artisan/flat-platform
- **Keywords:** shadcn/ui (New York), shadcn, new-york style, radix + tailwind, Neutral, refined, subtle borders and rings, Small radius (0.5rem), muted zinc/slate palette, Accessible Radix primitives, Understated developer-favorite polish, flat-platform
- **Era:** 2023–present
- **Light/Dark:** Fonte não declara modos; validar em light e dark antes de publicar

## Color Palette

- **Primary:** bg: #ffffff, surface: #ffffff, surface-strong: #f4f4f5, border: #e4e4e7
- **Secondary:** text: #09090b, text-muted: #71717a, primary: #18181b, accent: #2563eb, ring: #a1a1aa

## Visual Effects

Neutral, refined, subtle borders and rings, Small radius (0.5rem), muted zinc/slate palette, Accessible Radix primitives, Understated developer-favorite polish, shadow

## AI Visual Direction

shadcn/ui (New York), Neutral, refined, subtle borders and rings, Small radius (0.5rem), muted zinc/slate palette, Accessible Radix primitives, Understated developer-favorite polish, shadcn/ui showcase; Vercel/Cal.com-style apps.

## CSS Technical

```css
/* shadcn/ui (New York) — design tokens */
/* 2023–present | shadcn/ui (Radix + Tailwind) by shadcn, condensed */
:root {
  /* color: zinc palette, "New York" preset */
  --color-bg: #ffffff;
  --color-surface: #ffffff;
  --color-surface-strong: #f4f4f5;
  --color-border: #e4e4e7;
  --color-text: #09090b;
  --color-text-muted: #71717a;
  --color-primary: #18181b;
  --color-accent: #2563eb;
  --color-ring: #a1a1aa;
  /* radius: shadcn default is 0.5rem */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-pill: 999px;
  /* shadow: very subtle, never decorative */
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-lg: 0 10px 15px rgba(0,0,0,0.08), 0 4px 6px rgba(0,0,0,0.05);
  /* font */
  --font-sans: 'Geist', 'Inter', system-ui, -apple-system, sans-serif;
  --font-display: 'Geist', 'Inter', system-ui, sans-serif;
  --font-mono: 'Geist Mono', ui-monospace, 'SFMono-Regular', monospace;
  /* text */
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.375rem;
  --text-2xl: 1.75rem;
  --text-3xl: 2.25rem;
  --text-4xl: 3rem;
  --text-5xl: 4rem;
  /* space */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-6: 24px;
  --space-8: 32px;
  --space-12: 48px;
  --space-16: 64px;
  --space-24: 96px;
  /* ease */
  --ease-standard: cubic-bezier(0.16, 1, 0.3, 1);
  /* extra: a subtle two-layer focus ring is the recurring signature move, not a gradient or texture */
  --ring-offset: 0 0 0 2px var(--color-bg);
  --ring: 0 0 0 4px color-mix(in srgb, var(--color-ring) 35%, transparent);
}

/* ============================================================
   Base component classes — shadcn/ui (New York)
   Signature move: a restrained two-layer focus ring (white offset +
   soft zinc ring) repeated identically on btn and input, plus a
   uniform 0.5rem radius and hairline 1px borders everywhere — subtle,
   refined, developer-favorite polish with no ornament beyond structure.
   ============================================================ */
body { margin: 0; color: var(--color-text); font-family: var(--font-sans); background: var(--color-bg); }
.nav { display: flex; gap: var(--space-4); align-items: center;
  padding: var(--space-3) var(--space-6); background: var(--color-surface);
  border-bottom: 1px solid var(--color-border); }
.btn {
  font: 500 var(--text-sm)/1 var(--font-sans); color: var(--color-text);
  padding: var(--space-2) var(--space-4); border-radius: var(--radius-md);
  background: var(--color-surface); border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm); cursor: pointer;
  transition: background-color .15s var(--ease-standard), box-shadow .15s var(--ease-standard);
}
.btn:hover { background: var(--color-surface-strong); }
.btn:active { background: #ececef; }
.btn:focus-visible { outline: none; box-shadow: var(--ring-offset), var(--ring); }
.btn[disabled] { opacity: .5; cursor: not-allowed; }
.btn--primary { background: var(--color-primary); color: #fafafa; border-color: var(--color-primary); }
.btn--primary:hover { background: #27272a; }
.card { background: var(--color-surface); color: var(--color-text);
  border: 1px solid var(--color-border); border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm); padding: var(--space-6); }
.input { width: 100%; box-sizing: border-box; color: var(--color-text);
  font: var(--text-sm) var(--font-sans); padding: var(--space-2) var(--space-3);
  background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-md); }
.input::placeholder { color: var(--color-text-muted); }
.input:focus { outline: none; box-shadow: var(--ring-offset), var(--ring); border-color: var(--color-ring); }
.badge { display: inline-flex; align-items: center; gap: .4em; font: 600 var(--text-xs) var(--font-sans);
  padding: .2em .7em; border-radius: var(--radius-pill); background: var(--color-surface-strong);
  border: 1px solid var(--color-border); color: var(--color-text); }
@media (prefers-reduced-motion: reduce) { .btn { transition: none; } }


/* Especificação de referência: references/00-flagship-implementation-specs/shadcn-ui.md */
```

## Design System Variables

```css
--bg: #ffffff, --fg: #09090b, --accent: #18181b, --surface: #ffffff, --radius: 0.5rem, --spacing: 16px, --font-display: 'Geist', 'Inter', system-ui, sans-serif, --font-body: 'Geist', 'Inter', system-ui, -apple-system, sans-serif
```

## Implementation Checklist

- Contraste WCAG AA; foco visível; navegação por teclado; estados hover/pressed; responsividade; prefers-reduced-motion; Tailwind v4 via @theme.

## Execution Rules

1. Strictly follow the defined visual style.
2. Use high-quality inline SVG icons (Heroicons or Lucide style) — NEVER use emojis as icons.
3. Add `cursor-pointer` and smooth `hover` states (transition-all) on all interactive elements.
4. Required Page Structure:
   - Navbar (Logo + Links + CTA)
   - Hero Section (Impactful Headline + Subtitle + 2 buttons + 3D/Abstract visual element via CSS)
   - Features (3 cards with icons)
   - Testimonials (3 cards)
   - Pricing (3 tiers, highlight the middle one)
   - Final CTA
   - Full Footer with social links, privacy policy, terms of use, contact and SEO links.
5. All text content must be in English.
6. The visual must be CLEARLY distinct — do not create a "default Bootstrap" design. Force the use of the provided design system variables.
7. Use `<style>` tags in the head for custom classes (especially for complex backdrop-filter effects and animations) that Tailwind CDN doesn't cover.
8. Full Responsiveness: Layout must adapt perfectly to Mobile, Tablet and Desktop (vertical stack on mobile).
9. Include basic SEO, Viewport and Open Graph meta tags in `<head>`.
10. Footer must contain: Copyright 2026, Secondary navigation links and Social media icons.
11. Make the creative decisions needed to deliver the complete, functional result now.