class CustomFeatures extends HTMLElement {
  connectedCallback() {
    this.attachShadow({ mode: 'open' });
    this.shadowRoot.innerHTML = `
      <style>
        :host {
          display: block;
          padding: 6rem 0;
          background-color: white;
        }
        
        .dark :host {
          background-color: #111827;
        }
        
        .container {
          max-width: 1280px;
          margin: 0 auto;
          padding: 0 1.5rem;
        }
        
        .section-header {
          text-align: center;
          margin-bottom: 4rem;
        }
        
        .section-title {
          font-size: 2.25rem;
          line-height: 2.5rem;
          font-weight: 800;
          color: #1e3a8a;
          margin-bottom: 1rem;
        }
        
        .dark .section-title {
          color: #93c5fd;
        }
        
        .section-subtitle {
          font-size: 1.125rem;
          line-height: 1.75rem;
          color: #64748b;
          max-width: 42rem;
          margin: 0 auto;
        }
        
        .dark .section-subtitle {
          color: #94a3b8;
        }
        
        .features-grid {
          display: grid;
          grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
          gap: 2rem;
        }
        
        .feature-card {
          background-color: #f8fafc;
          border-radius: 1rem;
          padding: 2rem;
          transition: all 0.3s ease;
          border: 1px solid #e2e8f0;
        }
        
        .dark .feature-card {
          background-color: #1e293b;
          border-color: #334155;
        }
        
        .feature-card:hover {
          transform: translateY(-5px);
          box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
        }
        
        .dark .feature-card:hover {
          box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.25);
        }
        
        .feature-icon {
          width: 3rem;
          height: 3rem;
          display: flex;
          align-items: center;
          justify-content: center;
          background-color: #3b82f6;
          color: white;
          border-radius: 0.75rem;
          margin-bottom: 1.5rem;
        }
        
        .dark .feature-icon {
          background-color: #1e40af;
        }
        
        .feature-title {
          font-size: 1.25rem;
          line-height: 1.75rem;
          font-weight: 600;
          color: #1e3a8a;
          margin-bottom: 1rem;
        }
        
        .dark .feature-title {
          color: #e5e7eb;
        }
        
        .feature-description {
          color: #64748b;
          margin-bottom: 1.5rem;
        }
        
        .dark .feature-description {
          color: #94a3b8;
        }
        
        .feature-link {
          display: inline-flex;
          align-items: center;
          color: #3b82f6;
          font-weight: 500;
          text-decoration: none;
          transition: color 0.2s;
        }
        
        .dark .feature-link {
          color: #93c5fd;
        }
        
        .feature-link:hover {
          color: #2563eb;
        }
        
        .dark .feature-link:hover {
          color: #60a5fa;
        }
        
        .feature-link-icon {
          margin-left: 0.25rem;
          width: 1rem;
          height: 1rem;
        }
      </style>
      
      <div class="container">
        <div class="section-header" id="features">
          <h2 class="section-title">Developer-First Features</h2>
          <p class="section-subtitle">
            Tools and components designed to make your development workflow more efficient and enjoyable
          </p>
        </div>
        
        <div class="features-grid">
          <div class="feature-card glow-effect">
            <div class="feature-icon">
              <i data-feather="code"></i>
            </div>
            <h3 class="feature-title">Reusable Components</h3>
            <p class="feature-description">
              Build with modular, customizable components that follow web standards and best practices.
            </p>
            <a href="#" class="feature-link">
              Explore components
              <i data-feather="arrow-right" class="feature-link-icon"></i>
            </a>
          </div>
          
          <div class="feature-card glow-effect">
            <div class="feature-icon">
              <i data-feather="zap"></i>
            </div>
            <h3 class="feature-title">Performance Optimized</h3>
            <p class="feature-description">
              Lightweight and optimized for fast loading with minimal bundle size impact.
            </p>
            <a href="#" class="feature-link">
              View benchmarks
              <i data-feather="arrow-right" class="feature-link-icon"></i>
            </a>
          </div>
          
          <div class="feature-card glow-effect">
            <div class="feature-icon">
              <i data-feather="moon"></i>
            </div>
            <h3 class="feature-title">Dark Mode Ready</h3>
            <p class="feature-description">
              Built with dark mode support out of the box with automatic system preference detection.
            </p>
            <a href="#" class="feature-link">
              Learn implementation
              <i data-feather="arrow-right" class="feature-link-icon"></i>
            </a>
          </div>
          
          <div class="feature-card glow-effect">
            <div class="feature-icon">
              <i data-feather="smartphone"></i>
            </div>
            <h3 class="feature-title">Fully Responsive</h3>
            <p class="feature-description">
              Works flawlessly on all devices from mobile to desktop with adaptive layouts.
            </p>
            <a href="#" class="feature-link">
              Test responsiveness
              <i data-feather="arrow-right" class="feature-link-icon"></i>
            </a>
          </div>
          
          <div class="feature-card glow-effect">
            <div class="feature-icon">
              <i data-feather="git-branch"></i>
            </div>
            <h3 class="feature-title">Version Controlled</h3>
            <p class="feature-description">
              Regular updates and semantic versioning to ensure stability and compatibility.
            </p>
            <a href="#" class="feature-link">
              Check changelog
              <i data-feather="arrow-right" class="feature-link-icon"></i>
            </a>
          </div>
          
          <div class="feature-card glow-effect">
            <div class="feature-icon">
              <i data-feather="book-open"></i>
            </div>
            <h3 class="feature-title">Comprehensive Docs</h3>
            <p class="feature-description">
              Detailed documentation with examples, API references, and best practice guides.
            </p>
            <a href="#" class="feature-link">
              Read documentation
              <i data-feather="arrow-right" class="feature-link-icon"></i>
            </a>
          </div>
        </div>
      </div>
    `;
  }
}

customElements.define('custom-features', CustomFeatures);