.title {
  text-align: center;
  margin: 36px 0;
}

.subtitle {
  text-align: center;
  margin-top: 50px;
}

.update-date {
  text-align: center;
  margin-top: 30px;
}

.center {
  text-align: center;
  margin-top: 20px;
}

.btn-primary {
  display: inline-block;
  padding: 12px 24px;
  background: #007BFF;
  color: white;
  text-decoration: none;
  border-radius: 4px;
}

.btn-secondary {
  display: inline-block;
  padding: 12px 24px;
  background: #6c757d;
  color: white;
  text-decoration: none;
  border-radius: 4px;
}