* {
      box-sizing: border-box;
      font-family: Arial, sans-serif;
    }

    body {
      margin: 0;
      padding: 0;
      background: linear-gradient(135deg, #3b8beb, #6fd1fc);
      height: 100vh;
      display: flex;
      justify-content: center;
      align-items: center;
    }

    .login-container {
      background-color: white;
      padding: 40px;
      border-radius: 12px;
      box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
      width: 100%;
      max-width: 400px;
    }

    .login-container h2 {
      text-align: center;
      margin-bottom: 25px;
    }

    .input-group {
      margin-bottom: 20px;
    }

    .input-group label {
      display: block;
      margin-bottom: 5px;
      font-weight: bold;
    }

    .input-group input {
      width: 100%;
      padding: 12px;
      border: 1px solid #ccc;
      border-radius: 6px;
      font-size: 16px;
    }

    .login-btn {
      width: 100%;
      padding: 12px;
      background-color: #3b8beb;
      color: white;
      font-size: 16px;
      border: none;
      border-radius: 6px;
      cursor: pointer;
      transition: background-color 0.3s ease;
    }

    .login-btn:hover {
      background-color: #2f76cc;
    }

    .error-message {
      color: red;
      text-align: center;
      margin-top: 15px;
      display: none;
    }