body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background-color: #f0f8ff;
  color: #333;
  padding: 20px;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  align-items: center;
  margin: 0;
}

.header {
  text-align: center;
  margin-bottom: 30px;
}

.cat-image {
  width: 150px;
  height: 150px;
  border-radius: 50%;
}

.container {
  width: 100%;
  max-width: 600px;
  background-color: #ffffff;
  padding: 20px;
  border-radius: 15px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
  text-align: center;
  margin-bottom: 30px;
  box-sizing: border-box;
}

h1 {
  color: #004080;
  margin-bottom: 20px;
}

textarea {
  width: 100%;
  max-width: 100%;
  height: 150px;
  padding: 15px;
  border: 2px solid #004080;
  border-radius: 10px;
  margin-bottom: 15px;
  font-size: 16px;
  color: #333;
  background-color: #f0f8ff;
  box-sizing: border-box;
}

button {
  display: inline-block;
  background-color: #007bff;
  color: white;
  padding: 12px 25px;
  border: none;
  border-radius: 8px;
  font-size: 16px;
  cursor: pointer;
  transition: background-color 0.3s;
  margin-top: 10px;
}

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

h2 {
  color: #004080;
  margin-top: 20px;
}

pre {
  background-color: #e6f0ff;
  padding: 15px;
  border: 1px solid #004080;
  border-radius: 8px;
  white-space: pre-wrap;
  text-align: left;
  font-size: 14px;
}

.copy-message {
  color: green;
  font-size: 14px;
  margin-top: 10px;
}