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@cogita/theme-lucid

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@cogita/theme-lucid

The default theme for Cogita - A lucid, content-focused blog theme.

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@cogita/theme-lucid

npm version React

中文 | English

The default theme for Cogita - A lucid, content-focused blog theme.

What is it?

Lucid is Cogita's official default theme, designed with "clarity" as its core principle. It focuses on content readability and user experience with a modern, clean design that gets out of the way and lets your content shine.

Features

  • 🎯 Content First: Clean typography and spacing optimized for reading
  • 🌙 Smart Theming: Auto light/dark mode with smooth transitions
  • 📱 Mobile Ready: Responsive design that works on all devices
  • Performance: Fast loading with optimized CSS and JavaScript
  • Accessible: WCAG compliant with keyboard navigation support

Quick Start

Installation

pnpm add @cogita/core @cogita/theme-lucid

Basic Setup

Create cogita.config.ts:

import { defineConfig } from '@cogita/core';

export default defineConfig({
  site: {
    title: 'My Lucid Blog',
    description: 'A blog powered by Cogita Lucid theme',
  },
  theme: 'lucid',
});

Create your first post in posts/welcome.md:

---
title: "Welcome to Lucid"
description: "Exploring the elegant design of the Lucid theme"
createDate: "2024-01-01"
tags: ["cogita", "lucid", "blog"]
---

# Welcome to Lucid

Lucid theme provides clean, modern design for your blog...

Start development:

pnpm dev

Configuration

Basic Theme Config

export default defineConfig({
  site: {
    title: 'My Blog',
    description: 'A personal blog',
  },
  theme: 'lucid',
  
  themeConfig: {
    // Navigation
    nav: [
      { text: 'Home', link: '/' },
      { text: 'About', link: '/about' },
      { text: 'Contact', link: '/contact' },
    ],
    
    // Social links
    socialLinks: [
      { icon: 'github', mode: 'link', content: 'https://github.com/you' },
      { icon: 'x', mode: 'link', content: 'https://x.com/you' },
      { icon: 'rss', mode: 'link', content: '/rss.xml' },
    ],
    
    // Footer
    footer: {
      message: '© 2024 My Blog. Built with ❤️ and Cogita',
    },
    
    // Theme mode
    colorMode: 'auto', // 'light' | 'dark' | 'auto'
  },
});

Advanced Navigation

themeConfig: {
  nav: [
    { text: 'Home', link: '/' },
    {
      text: 'Posts',
      items: [
        { text: 'Tech Articles', link: '/posts/tech' },
        { text: 'Life Stories', link: '/posts/life' },
      ],
    },
    { text: 'About', link: '/about' },
  ],
}

Theme Features

Automatic Blog Functionality

  • Post List: Homepage automatically displays your latest posts
  • Post Pages: Individual post pages with optimized reading experience
  • Pagination: Automatic pagination for large numbers of posts
  • Reading Time: Estimated reading time calculation

Built-in Plugins

Lucid automatically includes:

  • @cogita/plugin-posts-frontmatter - Extracts post metadata
  • More plugins coming soon...

SEO Optimized

  • Automatic meta tag generation
  • Open Graph tags for social sharing
  • Structured data markup
  • Optimized loading performance

Customization

CSS Variables

Override theme colors and spacing:

/* styles/custom.css */
:root {
  /* Brand colors */
  --lucid-primary: #007acc;
  --lucid-primary-hover: #005a99;
  
  /* Typography */
  --lucid-font-family: 'Inter', system-ui, sans-serif;
  --lucid-font-size-base: 16px;
  
  /* Spacing */
  --lucid-space-unit: 8px;
  
  /* Layout */
  --lucid-content-width: 800px;
  --lucid-radius: 6px;
}

/* Dark mode overrides */
[data-theme='dark'] {
  --lucid-primary: #58a6ff;
  --lucid-bg-primary: #0d1117;
  --lucid-text-primary: #f0f6fc;
}

Import in your config:

export default defineConfig({
  builderConfig: {
    html: {
      tags: [
        {
          tag: 'link',
          attrs: { rel: 'stylesheet', href: '/styles/custom.css' }
        }
      ]
    }
  }
});

Custom Components

Override theme components by creating custom layouts:

// components/CustomPostItem.tsx
import { PostItem } from '@cogita/ui';
import type { Post } from '@cogita/ui';

export const CustomPostItem: React.FC<{ post: Post }> = ({ post }) => (
  <article className="custom-post-item">
    <h2>{post.title}</h2>
    {post.cover && <img src={post.cover} alt={post.title} />}
    <p>{post.description}</p>
    <div className="meta">
      <time>{post.createDate}</time>
      {post.tags && (
        <div className="tags">
          {post.tags.map(tag => (
            <span key={tag} className="tag">{tag}</span>
          ))}
        </div>
      )}
    </div>
  </article>
);

Content Guidelines

Post Frontmatter

---
title: "Your Post Title"
description: "Brief description for SEO and social sharing"
createDate: "2024-01-01"
updateDate: "2024-01-15"
tags: ["tag1", "tag2"]
categories: ["category1"]
author: "Author Name"
cover: "./cover.jpg"
featured: true
---

Supported Content

  • Markdown: Standard Markdown with extensions
  • MDX: React components in Markdown (planned)
  • Images: Automatic optimization and lazy loading
  • Code: Syntax highlighting with Prism.js

Performance

Optimization Features

  • Lazy Loading: Images and non-critical content
  • Code Splitting: Automatic route-based splitting
  • CSS Optimization: Critical CSS inlining
  • Asset Optimization: Automatic compression and caching

Build Configuration

export default defineConfig({
  builderConfig: {
    // Performance optimizations
    output: {
      assetPrefix: 'https://cdn.example.com/',
    },
    chunkSplit: {
      strategy: 'split-by-experience',
    },
  },
});

Responsive Design

Breakpoints

  • Mobile: < 640px
  • Tablet: 640px - 768px
  • Desktop: 768px - 1024px
  • Large: > 1024px

Mobile Optimizations

  • Touch-friendly navigation
  • Optimized font sizes
  • Simplified layouts
  • Fast loading on slow connections

SEO Features

Automatic Meta Tags

<meta property="og:title" content="Your Post Title" />
<meta property="og:description" content="Post description" />
<meta property="og:image" content="Post cover image" />
<meta name="twitter:card" content="summary_large_image" />

Structured Data

Automatic JSON-LD generation for:

  • Blog posts
  • Author information
  • Organization data
  • Breadcrumb navigation

Troubleshooting

Common Issues

Theme not loading:

# Check if theme is properly installed
npm list @cogita/theme-lucid

# Verify config
export default defineConfig({
  theme: 'lucid', // Should be string, not import
});

Styling issues:

# Check CSS import order
import '@cogita/ui/styles'; // Should come first
import './custom.css';      // Then custom styles

Posts not showing:

# Check posts directory structure
posts/
  └── your-post.md  # Should have proper frontmatter

Learn More

License

MIT © wu9o

Keywords

cogita

FAQs

Package last updated on 04 Nov 2025

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