body, html {
      height: 100%;
      margin: 0;
      font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
      background-color: #f4f6f8;
    }

    .loader-container {
      display: flex;
      align-items: center;
      justify-content: center;
      height: 100vh;
      flex-direction: column;
      text-align: center;
    }

    .spinner {
      border: 8px solid #e0e0e0;
      border-top: 8px solid #3498db;
      border-radius: 50%;
      width: 60px;
      height: 60px;
      animation: spin 1s linear infinite;
      margin-bottom: 25px;
    }

    @keyframes spin {
      0% { transform: rotate(0deg); }
      100% { transform: rotate(360deg); }
    }

    .message {
      font-size: 18px;
      color: #333;
    }

    .error-box {
      background-color: #fff;
      color: #c0392b;
      border-left: 5px solid #e74c3c;
      padding: 25px 30px;
      border-radius: 8px;
      max-width: 480px;
      box-shadow: 0 6px 20px rgba(0, 0, 0, 0.05);
      animation: fadeIn 0.4s ease-in-out;
    }

    .error-box h2 {
      margin-top: 0;
      font-size: 22px;
      color: #c0392b;
    }

    .error-box p {
      margin: 10px 0;
      font-size: 16px;
      color: #555;
    }

    .support {
      margin-top: 15px;
      font-size: 15px;
      color: #2c3e50;
    }

    .support a {
      color: #2980b9;
      text-decoration: none;
    }

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

    @keyframes fadeIn {
      from { opacity: 0; transform: translateY(10px); }
      to { opacity: 1; transform: translateY(0); }
    }