:root{--accent: #0b5cff}*{box-sizing:border-box}body{font-family:system-ui,-apple-system,Segoe UI,Roboto,Helvetica Neue,Arial;margin:0;color:#111}.nav{display:flex;align-items:center;justify-content:space-between;padding:12px 20px;border-bottom:1px solid #eee}.logo{height:80px}@media (max-width: 480px){.logo{height:64px}}.menu{list-style:none;margin:0;padding:0;display:flex;gap:16px}.menu a{color:inherit;text-decoration:none}.container{padding:28px}.container h1{text-align:center}