travisjneuman

generic-fullstack-design-system

Complete design system reference for full-stack applications. Covers colors, typography, spacing, component patterns (shadcn/ui), effects, GPU-accelerated animations, and WCAG AA accessibility. Use when implementing UI, choosing colors, applying spacing, creating components, or ensuring brand consistency.

travisjneuman 58 13 Updated 4mo ago
GitHub

Install

npx skillscat add travisjneuman/claude/generic-fullstack-design-system

Install via the SkillsCat registry.

SKILL.md

Fullstack Design System

Design system patterns for Next.js/NestJS full-stack applications.

Extends: Generic Design System - Read base skill for color theory, typography scale, spacing system, and component states.

Theme Configuration

lib/theme.ts Structure

// lib/theme.ts - Single source of truth
export const theme = {
  colors: {
    primary: "hsl(220, 100%, 55%)",
    secondary: "hsl(180, 100%, 50%)",
    accent: "hsl(270, 70%, 60%)",
  },
  spacing: {
    xs: "4px",
    sm: "8px",
    md: "16px",
    lg: "24px",
  },
};

CSS Variables (globals.css)

:root {
  --background: #ffffff;
  --foreground: #0a0a0f;
  --primary: hsl(220, 100%, 55%);
  --primary-foreground: #ffffff;
}

.dark {
  --background: #0a0a0f;
  --foreground: #fafafa;
}

Tailwind Integration

// tailwind.config.js
module.exports = {
  theme: {
    extend: {
      colors: {
        background: "var(--background)",
        foreground: "var(--foreground)",
        primary: "var(--primary)",
      },
    },
  },
};

shadcn/ui Patterns

Button Variants

import { Button } from '@/components/ui/button';

<Button>Primary</Button>
<Button variant="outline">Secondary</Button>
<Button variant="destructive">Delete</Button>
<Button variant="ghost">Cancel</Button>
<Button size="sm">Small</Button>
<Button size="lg">Large</Button>

Form Components

import { Input } from "@/components/ui/input";
import { Label } from "@/components/ui/label";

<div className="space-y-2">
  <Label htmlFor="email">Email</Label>
  <Input id="email" type="email" placeholder="user@example.com" />
</div>;

Dialog/Modal

import {
  Dialog,
  DialogContent,
  DialogHeader,
  DialogTitle,
} from "@/components/ui/dialog";

<Dialog open={open} onOpenChange={setOpen}>
  <DialogContent>
    <DialogHeader>
      <DialogTitle>Confirm Action</DialogTitle>
    </DialogHeader>
    {/* Content */}
  </DialogContent>
</Dialog>;

Visual Effects

Glassmorphism

.glass {
  background: hsl(var(--card) / 0.5);
  backdrop-filter: blur(12px);
  border: 1px solid hsl(var(--border) / 0.5);
}

Gradient Backgrounds

.bg-gradient {
  background: linear-gradient(135deg, var(--primary), var(--accent));
}

Dark Mode Implementation

Next.js + next-themes

// app/layout.tsx
import { ThemeProvider } from "next-themes";

export default function RootLayout({ children }) {
  return (
    <html suppressHydrationWarning>
      <body>
        <ThemeProvider attribute="class" defaultTheme="system">
          {children}
        </ThemeProvider>
      </body>
    </html>
  );
}

Theme Toggle

import { useTheme } from "next-themes";

function ThemeToggle() {
  const { theme, setTheme } = useTheme();
  return (
    <button onClick={() => setTheme(theme === "dark" ? "light" : "dark")}>
      Toggle theme
    </button>
  );
}

Asset Organization

public/
├── images/
│   ├── logo.svg
│   └── og-image.png    # 1200x630, < 1MB
├── favicons/
│   ├── favicon.ico
│   ├── apple-touch-icon.png
│   └── favicon-32x32.png
└── site.webmanifest

See Also