body{font-family:sans-serif;margin:0;background-color:#1a1a1a;color:#e0e0e0}.nav{background-color:#242424;border-bottom:1px solid #333}.nav .container{display:flex;gap:2rem;padding:1rem 0}.nav a{color:#e0e0e0;text-decoration:none;font-weight:500;transition:color .15s ease}.nav a:hover{color:#fff;text-decoration:underline}.nav a.active{color:#fff;border-bottom:2px solid #fff;padding-bottom:2px}.section{padding:2rem 0}.container{max-width:800px;margin:0 auto;padding:0 1rem}