body {
  font-family: sans-serif;
  text-align: center;
  background-color: #f9f9f9;
}

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

.logo {
  width: 80px;
}

textarea {
  width: 100%;
  height: 100px;
  margin: 10px 0;
  padding: 10px;
  font-size: 1rem;
  border: 1px solid #ccc;
  border-radius: 4px;
  resize: vertical;
}

.buttons button {
  margin: 5px;
  padding: 10px 15px;
  font-size: 1rem;
  cursor: pointer;
  border: none;
  border-radius: 5px;
}

#cleanBtn { background-color: #4CAF50; color: white; }
#restructureBtn { background-color: #2196F3; color: white; }
#copyBtn { background-color: #ff9800; color: white; }
#aiBtn { background-color: #9c27b0; color: white; }