.pst-login-form {
  max-width: 360px;
  margin: 80px auto;
  padding: 24px;
  background: #fafafa;
  border: 1px solid #ddd;
  border-radius: 8px;
  font-family: sans-serif;
}
.pst-login-title {
  margin-bottom: 16px;
  text-align: center;
  font-size: 1.5rem;
}
.pst-login-field label {
  display: block;
  margin-bottom: 4px;
}
.pst-login-field input {
  width: 100%;
  padding: 8px;
  margin-bottom: 12px;
  border: 1px solid #bbb;
  border-radius: 4px;
}
.pst-login-submit button {
  width: 100%;
  padding: 10px;
  background: #21759b;
  color: #fff;
  border: none;
  border-radius: 4px;
  cursor: pointer;
}
.pst-login-error {
  color: #a00;
  margin-bottom: 12px;
  text-align: center;
}