main {
  display: flex;
  align-items: center;
  justify-content: center;
}

.login-container {
  max-width: 400px;
  margin: 2rem 1rem;
  padding: 2.5rem;
  background-color: #fff;
  border-radius: 10px;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
  text-align: center;
  flex: 1;
  box-sizing: border-box;
}

.login-container h2 {
  margin-bottom: 2rem;
  font-size: 1.8rem;
  color: #0056b3;
}

.form-group {
  margin-bottom: 1.5rem;
  text-align: left;
}

.form-group label {
  display: block;
  margin-bottom: 0.8rem;
  font-weight: bold;
  font-size: 1rem;
  color: #333;
}

.form-group input {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid #ccc;
  border-radius: 6px;
  font-size: 1rem;
  background-color: #f9f9f9;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
  box-sizing: border-box;
}

.form-group input:focus {
  outline: none;
  border-color: #0056b3;
  box-shadow: 0 0 6px rgba(0, 86, 179, 0.4);
  background-color: #fff;
}

.cta-button {
  display: block;
  padding: 0.75rem 1.5rem;
  font-size: 0.95rem;
  font-weight: 500;
  text-align: center;
  background-color: #0056b3;
  color: #fff;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  transition: background-color 0.3s ease;
  margin: 0 auto;
}

.cta-button:hover {
  background-color: #003f80;
}

.login-container p {
  margin-top: 1.5rem;
  font-size: 0.95rem;
  color: #555;
}

.login-container p a {
  color: #0056b3;
  text-decoration: underline;
}

.login-container p a:hover {
  text-decoration: none;
}

.description {
  margin-bottom: 1.5rem;
  color: #666;
  text-align: center;
  line-height: 1.5;
}

.alert {
  padding: 1rem;
  margin-bottom: 1rem;
  border: 1px solid transparent;
  border-radius: 0.375rem;
}

.alert-success {
  color: #0f5132;
  background-color: #d1e7dd;
  border-color: #badbcc;
}

.alert-danger {
  color: #842029;
  background-color: #f8d7da;
  border-color: #f5c2c7;
}

.links {
  margin-top: 1.5rem;
  text-align: center;
}

.links p {
  margin: 0.5rem 0;
}

.links a {
  color: #007bff;
  text-decoration: none;
}

.links a:hover {
  text-decoration: underline;
}

#submit-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}