body {
  font-family: -apple-system, system-ui, sans-serif;
  max-width: 800px;
  margin: 40px auto;
  padding: 0 20px;
  line-height: 1.6;
}

#result {
  margin-top: 20px;
  padding: 20px;
  background: #f5f5f5;
  border-radius: 5px;
}

#result h3 {
  margin-top: 25px;
  margin-bottom: 15px;
  color: #333;
}

#result h3:first-child {
  margin-top: 0;
}

#result p {
  margin: 10px 0;
  padding: 8px;
  background: white;
  border-radius: 3px;
}

.form-container {
  margin: 20px 0;
  padding: 20px;
  background: #f5f5f5;
  border-radius: 5px;
}

#ebook-form input {
  padding: 8px;
  margin-right: 10px;
  border: 1px solid #ddd;
  border-radius: 3px;
  width: 250px;
}

#ebook-form button {
  padding: 8px 16px;
  background: #007bff;
  color: white;
  border: none;
  border-radius: 3px;
  cursor: pointer;
}