body{margin:0;font-family:system-ui,sans-serif}main{max-width:960px;margin:0 auto;padding:1rem}nav{gap:.5rem;margin-bottom:1rem;display:flex}button{margin:.25rem}button[aria-current=page]{font-weight:700}.cards>li{border:1px solid #ccc;border-radius:8px;margin-bottom:1rem;padding:1rem;list-style:none}