body {
    font-family: 'Poppins', sans-serif;
    text-align: center;
    padding: 20px;
    background: linear-gradient(135deg, #8e44ad, #3498db);
    color: #333;
    height: 100vh;
    margin: 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
  }

  h1 {
    font-size: 38px;
    color: #fff;
    margin-bottom: 15px;
    letter-spacing: 2px;
    text-transform: uppercase;
  }

  p {
    font-size: 18px;
    color: #f4f4f4;
    margin-bottom: 25px;
    letter-spacing: 1.2px;
  }

  input {
    padding: 14px;
    width: 75%;
    margin: 15px 0;
    font-size: 16px;
    border-radius: 30px;
    border: 2px solid #8e44ad;
    background-color: #fff;
    color: #333;
    transition: all 0.3s ease;
  }

  input:focus {
    outline: none;
    border-color: #3498db;
    box-shadow: 0 0 10px rgba(52, 152, 219, 0.7);
  }

  button {
    padding: 14px 35px;
    font-size: 18px;
    cursor: pointer;
    background-color: #3498db;
    color: #fff;
    border: none;
    border-radius: 50px;
    letter-spacing: 1.5px;
    transition: all 0.3s ease;
  }

  button:hover {
    background-color: #8e44ad;
    transform: scale(1.1);
  }

  #qr-container {
    margin-top: 30px;
  }

  img {
    margin-top: 25px;
    max-width: 100%;
    height: auto;
    border-radius: 10px;
  }

  .download-btn {
    margin-top: 15px;
    display: none;
    padding: 12px 25px;
    font-size: 16px;
    background-color: #8e44ad;
    color: #fff;
    border: none;
    border-radius: 50px;
    cursor: pointer;
    letter-spacing: 1.2px;
    transition: all 0.3s ease;
  }

  .download-btn:hover {
    background-color: #3498db;
  }

  /* Media Queries */
  @media (max-width: 768px) {
    h1 {
      font-size: 32px;
    }

    p {
      font-size: 16px;
    }

    input {
      width: 85%;
      font-size: 14px;
    }

    button {
      font-size: 16px;
      padding: 12px 30px;
    }

    .download-btn {
      font-size: 14px;
      padding: 10px 20px;
    }
  }

  @media (max-width: 480px) {
    h1 {
      font-size: 28px;
    }

    p {
      font-size: 14px;
    }

    input {
      width: 90%;
      font-size: 12px;
    }

    button {
      font-size: 14px;
      padding: 10px 25px;
    }

    .download-btn {
      font-size: 12px;
      padding: 8px 15px;
    }
  }