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

.container {
  max-width: 600px;
  margin: 50px auto;
  text-align: center;
}

h1 {
  margin-bottom: 20px;
}

.controls {
  margin-bottom: 20px;
}

button {
  background-color: #ab8b40;
  color: white;
  border: none;
  border-radius: 5px;
  padding: 10px 20px;
  margin: 5px;
  cursor: pointer;
}

textarea {
  width: 100%;
  height: 200px;
  border: 2px solid #ab8b40;
  border-radius: 5px;
  padding: 10px;
  resize: none;
  background-color: #333333;
  color: white;
  font-size: 16px;
}

#audioVisualizer {
  height: 100px;
  background-color: #333333;
  margin-top: 20px;
}

.controls select {
  margin-left: 10px;
}