body {
  font-family: system-ui, sans-serif;
  max-width: 640px;
  margin: 2rem auto;
  padding: 0 1rem;
}

#messages {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: 1rem;
  min-height: 200px;
}

.message {
  padding: 0.5rem 0.75rem;
  border-radius: 8px;
  background: #f0f0f0;
}

.message.user {
  align-self: flex-end;
  background: #d6e6ff;
}

.message.agent {
  align-self: flex-start;
}

.feedback-row {
  margin-top: 0.4rem;
  display: flex;
  gap: 0.4rem;
}

.feedback-row input {
  flex: 1;
}

.feedback-confirmation {
  font-size: 0.85rem;
  color: #2a7a2a;
  margin-top: 0.3rem;
}

.suggestion-row {
  font-size: 0.85rem;
  margin-top: 0.4rem;
  padding: 0.4rem 0.5rem;
  background: #fff8e1;
  border-radius: 6px;
}

.suggestion-rationale {
  color: #666;
  font-style: italic;
  margin: 0.2rem 0;
}

.suggestion-row button {
  margin-right: 0.4rem;
  margin-top: 0.3rem;
}

.suggestion-status {
  font-weight: bold;
  margin-top: 0.2rem;
}

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

#message {
  flex: 1;
}