body {
  background-color: #333;
  font-family: Arial, sans-serif;
  color: #fff;
  text-align: center;
  padding: 20px;
}

textarea {
  width: 100%;
  max-width: 600px;
  height: 200px;
  padding: 10px;
  margin-top: 10px;
}

button, select {
  padding: 10px 20px;
  margin: 5px;
  background-color: #444;
  color: #fff;
  border: none;
  cursor: pointer;
}

.stage {
  margin-bottom: 20px;
}

#buttons button {
  min-width: 120px;
}

.lists {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
}

.lists > div {
  border: 1px solid #555;
  border-radius: 5px;
  padding: 10px;
  margin: 10px;
  width: 200px;
}

.lists ul {
  list-style-position: inside;
  padding-left: 0;
  text-align: left;
}