body{font-family:system-ui,Segoe UI,Roboto,Arial,sans-serif;margin:0} .container{max-width:1100px;margin:0 auto;padding:1rem} header{background:#f5f5f7} nav a{margin-right:.75rem} table{width:100%;border-collapse:collapse} th,td{border:1px solid #ddd;padding:.5rem}