body {
  font-family: Arial, sans-serif;
  margin: 20px;
  background: #f5f5f5;
}

#app {
  display: none;
}

textarea {
  width: 100%;
  height: 200px;
  padding: 10px;
  font-size: 16px;
}

.btn {
  margin-top: 10px;
  padding: 10px;
  background: #4285F4;
  color: white;
  border: none;
  border-radius: 5px;
  cursor: pointer;
}

.btn:hover {
  background: #357ae8;
}

#files {
  margin-top: 20px;
  padding: 10px;
  background: white;
  border: 1px solid #ccc;
  border-radius: 5px;
}

.file {
  margin: 5px 0;
  padding: 5px;
  border-bottom: 1px solid #eee;
}

.filename {
  font-weight: bold;
}

#captchaBox {
  margin-top: 15px;
  display: none;
}