body {
      margin: 0;
      font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
      background: linear-gradient(135deg, #6a11cb, #2575fc);
      color: #fff;
      display: flex;
      justify-content: center;
      align-items: center;
      height: 100vh;
      flex-direction: column;
      text-align: center;
    }
    h1 {
      font-size: 3rem;
      margin-bottom: 0.5rem;
    }
    p {
      font-size: 1.2rem;
      margin-bottom: 2rem;
    }
    a.button {
      background-color: rgba(255, 255, 255, 0.15);
      padding: 0.8rem 1.6rem;
      border-radius: 12px;
      text-decoration: none;
      color: #fff;
      font-weight: bold;
      transition: background-color 0.3s ease, transform 0.2s ease;
    }
    a.button:hover {
      background-color: rgba(255, 255, 255, 0.3);
      transform: scale(1.05);
    }