body { margin: 0; min-height: 100vh; display: grid; place-items: center;
  font-family: -apple-system, "Segoe UI", Roboto, sans-serif;
  background: #133354; }
.box { background: #fff; border-top: 4px solid #AE8F63; border-radius: 12px;
  padding: 32px 28px; width: 340px; box-shadow: 0 12px 40px rgba(0,0,0,.3);
  display: flex; flex-direction: column; gap: 12px; text-align: center; }
.logo { font-size: 36px; }
h1 { font-size: 16px; margin: 0; color: #1c2530; }
p { font-size: 13px; color: #6b7785; margin: 0 0 6px; }
input { padding: 10px 12px; border: 1px solid #e2e6eb; border-radius: 6px; font-size: 14px; }
button { padding: 10px; background: #133354; color: #fff; border: none; border-radius: 6px;
  font-size: 14px; cursor: pointer; }
button:hover { background: #1c4570; }
.err { color: #c0392b; font-size: 13px; min-height: 16px; }