body {
  font-family: 'Arial', sans-serif;
  background-color: #1a1a1a;
  color: #ffffff;
  margin: 0;
}

.header {
  text-align: center;
  padding: 10px;
  background-color: #2b2b2b;
}

h1 {
  font-family: 'Caveat', serif;
  font-size: 3em;
  margin: 0;
  color: #ffffff;
}

.container {
  max-width: 600px;
  margin: 20px auto;
  background-color: #2b2b2b;
  padding: 20px;
  border-radius: 10px;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

textarea {
  width: 100%;
  height: 150px;
  margin-bottom: 10px;
  background-color: #333333;
  color: #ffffff;
  border: 1px solid #555555;
  border-radius: 5px;
  padding: 10px;
  box-sizing: border-box;
}

button {
  display: block;
  margin-bottom: 10px;
  padding: 10px;
  background-color: #4CAF50;
  color: #ffffff;
  border: none;
  border-radius: 5px;
  cursor: pointer;
}

button:hover {
  background-color: #45a049;
}

.output {
  white-space: pre-line;
  background-color: #444444;
  color: #ffffff;
  padding: 10px;
  border-radius: 5px;
}