body {
  font-family: system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  max-width: 600px;
  margin: 0 auto;
  padding: 2rem 1rem;
  color: #222;
  line-height: 1.5;
}

h1 {
  text-align: center;
  margin-bottom: 2rem;
}

section {
  margin-bottom: 2rem;
  padding: 1rem;
  border: 1px solid #ddd;
  border-radius: 8px;
}

button {
  cursor: pointer;
  padding: 0.5rem 1rem;
  border: 1px solid #888;
  border-radius: 4px;
  background: #f5f5f5;
}

button:hover {
  background: #e8e8e8;
}

#api-result {
  margin-top: 1rem;
  padding: 0.75rem;
  background: #f8f8f8;
  border-radius: 4px;
  white-space: pre-wrap;
  word-break: break-word;
  min-height: 1.5rem;
}

#item-form {
  display: flex;
  gap: 0.5rem;
}

#item-input {
  flex: 1;
  padding: 0.5rem;
  border: 1px solid #888;
  border-radius: 4px;
}

#item-list {
  margin-top: 1rem;
  padding-left: 1.25rem;
}