body {
  margin: 0; min-height: 100vh;
  display: grid; place-items: center; gap: 14px;
  font: 400 16px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  color: #6b7280; background: #fff; text-align: center;
}
.row { display: flex; gap: 10px; }
a { color: #6366f1; font-weight: 600; text-decoration: none; }
a:hover { text-decoration: underline; }