* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Poppins', sans-serif;
  }
  
  body, html {
    height: 100%;
  }
  
  .container {
    display: flex;
    height: 100vh;
  }
  
  .left-column {
    flex: 1;
    background-color: #007BFF;
    display: flex;
    justify-content: center;
    align-items: center;
    color: white;
    flex-direction: column;
    text-align: center;
    padding: 20px;
  }
  
  .right-column {
    flex: 1;
    background-color: white;
    display: flex;
    justify-content: center;
    align-items: center;
  }
  
  .login-form {
    width: 100%;
    max-width: 350px;
  }
  
  .login-form h2 {
    margin-bottom: 20px;
    color: #333;
  }
  
  .login-form input {
    width: 100%;
    padding: 12px;
    margin-bottom: 15px;
    border: 1px solid #ccc;
    border-radius: 5px;
  }
  
  .login-form button {
    width: 100%;
    padding: 12px;
    border: none;
    background-color: #007BFF;
    color: white;
    border-radius: 5px;
    cursor: pointer;
    font-size: 16px;
  }
  
  .login-form button:hover {
    background-color: #0056b3;
  }

  /* Spinner and Message Styling */
#spinner {
  display: none;
  margin-top: 10px;
  color: #333;
}

#message {
  margin-top: 10px;
  font-size: 0.9rem;
}

#message.error {
  color: red;
}

#message.success {
  color: green;
}

/* Invalid input fields */
input:invalid {
  border: 1px solid red;
}

/* Optional improvements */
input, button {
  font-family: inherit;
  padding: 10px;
  margin-top: 10px;
  border-radius: 4px;
  border: 1px solid #ccc;
  width: 100%;
  box-sizing: border-box;
}

button {
  background-color: #007bff;
  color: white;
  border: none;
  cursor: pointer;
  transition: background-color 0.2s ease-in-out;
}

button:hover {
  background-color: #0056b3;
}

  
  @media (max-width: 768px) {
    .container {
      flex-direction: column;
    }
  
    .left-column,
    .right-column {
      flex: none;
      height: 50vh;
    }
  }