body{font-family:system-ui,sans-serif;margin:0;color:#1a1a1a}
header{background:#0d3b66;color:#fff;padding:.6rem 1rem}
header a{color:#fff;margin-right:.5rem}
main{max-width:900px;margin:1.5rem auto;padding:0 1rem}
table{border-collapse:collapse;width:100%}th,td{border:1px solid #ddd;padding:.4rem .6rem;text-align:left}
.error{color:#b00020}
label{display:block;margin:.4rem 0}
button{background:#0d3b66;color:#fff;border:0;padding:.4rem .8rem;cursor:pointer}