body {
    background-color: #f2f2f2;
    font-family: Arial, sans-serif;
  }
  
  .login-container {
    max-width: 300px;
    margin: 100px auto;
    padding: 20px;
    background-color: #fff;
    border: 1px solid #ccc;
    border-radius: 4px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
  }
  
  h1 {
    text-align: center;
    margin-bottom: 20px;
    color: #333;
  }
  
  input[type="text"],
  input[type="password"] {
    width: 100%;
    padding: 10px;
    margin-bottom: 10px;
    border: 1px solid #ccc;
    border-radius: 4px;
    box-sizing: border-box;
  }
  
  .button {
    width: 100%;
    padding: 10px;
    background-color: #333;
    color: #fff;
    border: none;
    border-radius: 4px;
    cursor: pointer;
  }
  
  .button:hover {
    background-color: #555;
  }
  
  #login-error {
    text-align: center;
    color: #ff0000;
    margin-top: 10px;
  }
  
  .alert {
    padding: 20px;
    background-color: #f44336;
    color: white;
    border-radius: 4px;
    margin-bottom: 10px;
    position: relative;
  }
  
  .closebtn {
    color: white;
    font-size: 22px;
    line-height: 20px;
    position: absolute;
    top: 50%;
    right: 20px;
    transform: translateY(-50%);
    cursor: pointer;
  }