body {
  font-family: 'Arial', sans-serif;
  margin: 0;
  padding: 0;
  background-color: #f4f4f4;
  color: #333;
  line-height: 1.6;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
}

.container {
  max-width: 400px;
  width: 100%;
  margin: 20px;
  padding: 20px;
  background: #fff;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
  border-radius: 8px;
  text-align: center;
}

h1 {
  margin-bottom: 20px;
  font-size: 1.5em;
  color: #333;
}


input[type="text"] {
  width: calc(100% - 22px);
  padding: 10px;
  margin-bottom: 20px;
  border: 1px solid #ccc;
  border-radius: 4px;
  font-size: 1em;
}


button {
  padding: 10px 20px;
  margin: 5px;
  border: none;
  border-radius: 4px;
  background-color: #007bff;
  color: white;
  font-size: 1em;
  cursor: pointer;
}

button:disabled {
  background-color: #ccc;
  cursor: not-allowed;
}

button:hover:not(:disabled) {
  background-color: #0056b3;
}


#linkContainer {
  margin-top: 20px;
}

#downloadLink {
  color: #007bff;
  text-decoration: none;
}

#downloadLink:hover {
  text-decoration: underline;
}


.instructions {
  margin-top: 15px;
  font-style: italic;
  color: #666;
  font-size: 1.1em;
}


@media (max-width: 768px) {
  .container {
    max-width: 95%;
    padding: 15px;
  }
}

@media (max-width: 480px) {
  body {
    flex-direction: column;
    justify-content: flex-start;
    align-items: flex-start;
  }
  .container {
    width: 100%;
    margin: 0;
    box-shadow: none;
    border-radius: 0;
  }
}