body {
  font-family: Arial, sans-serif;
  background-color: #f9f9f9;
  margin: 0;
  padding: 0;
  text-align: center;
}

.container {
  max-width: 600px;
  margin: 50px auto;
  padding: 20px;
  background: white;
  border-radius: 10px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

textarea {
  width: 100%;
  height: 100px;
  margin-bottom: 20px;
  padding: 10px;
  font-size: 16px;
  border: 1px solid #ddd;
  border-radius: 5px;
}

button {
  padding: 10px 20px;
  font-size: 16px;
  color: white;
  background-color: #007BFF;
  border: none;
  border-radius: 5px;
  cursor: pointer;
}

button:hover {
  background-color: #0056b3;
}

.response {
  margin-top: 20px;
  font-size: 14px;
  color: green;
}

.error {
  margin-top: 10px;
  font-size: 14px;
  color: red;
}