* { margin: 0; padding: 0; box-sizing: border-box; } body { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif; line-height: 1.6; color: #333; background: #f9f9f9; } nav { background: #1a1a2e; padding: 1rem 2rem; } nav a { color: #fff; text-decoration: none; margin-right: 1rem; font-weight: 500; } nav a:hover { text-decoration: underline; } main { max-width: 800px; margin: 3rem auto; padding: 0 1rem; } h1 { margin-bottom: 1rem; color: #1a1a2e; font-size: 2.5rem; } h2 { margin-top: 2rem; margin-bottom: 0.5rem; color: #16213e; } p { margin-bottom: 1rem; font-size: 1.1rem; }