:root{font-family:system-ui,sans-serif}nav{background:#f3f3f3;gap:1em;padding:1em;display:flex}nav a{color:#000;text-decoration:none}nav a:hover{text-decoration:underline}main{text-align:center;margin-top:10vh}button{padding:.4em 1em;font-size:1rem}#count{margin-left:.5em;font-weight:700}