body {
  margin: 0;
  background: #fff;
  color: #111;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

.card {
  max-width: 520px;
  margin: 12vh auto;
  padding: 24px;
  border: 1px solid #e9ebed;
  border-radius: 12px;
  box-shadow: 0 6px 28px rgba(0, 0, 0, .06);
}

h1 {
  margin: 0 0 12px;
  font-size: 22px;
}

p {
  margin: 0 0 12px;
  color: #444;
}

.btn {
  display: inline-block;
  padding: 10px 14px;
  border-radius: 8px;
  background: #f05523;
  color: #fff;
  font-weight: 700;
  text-decoration: none;
}

.muted {
  color: #666;
  font-size: 14px;
}