.header{background:#282c34;padding:16px 0;text-align:center}.navbar ul{list-style:none;display:flex;justify-content:center;gap:32px;margin:0;padding:0}.nav-item{display:inline-block}.nav-link{color:#fff;text-decoration:none;font-size:1.1rem;padding:8px 20px;border-radius:4px;transition:background .2s,color .2s}.nav-link:hover,.nav-link.active{background:#61dafb;color:#282c34}