body {
  font-family: Arial, sans-serif;
  text-align: center;
  margin-top: 60px;
}

.btn-google {
  display: inline-block;
  padding: 12px 22px;
  color: #fff;
  background: #4285f4;
  border-radius: 4px;
  text-decoration: none;
  font-weight: bold;
}

.login-error {
  color: #b71c1c;
  background: #ffebee;
  border: 1px solid #f44336;
  border-radius: 4px;
  padding: 8px 12px;
  margin: 16px auto;
  max-width: 320px;
}

@media (hover: hover) and (pointer: fine) {
  .btn-google:hover:not(:disabled) {
    opacity: 0.9;
  }
}