body{font-family:Arial,sans-serif;margin:0;padding:20px;background-color:#f5f5f5}.container{max-width:800px;margin:0 auto;background:#fff;padding:20px;border-radius:8px;box-shadow:0 2px 4px rgba(0,0,0,.1)}.nav{display:flex;gap:20px;margin-bottom:20px;padding-bottom:10px;border-bottom:1px solid #eee}.nav a{color:#0070f3;text-decoration:none}.nav a:hover{text-decoration:underline}.badge{background:#0070f3;color:#fff;padding:2px 8px;border-radius:4px;font-size:12px;margin-left:8px}