/* 기본 설정 */
body {
  margin: 0;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background-color: #1e1e1e;
  color: #f1f1f1;
  line-height: 1.5;
}

header {
  background-color: #2c2c2c;
  padding: 1rem;
  text-align: center;
  border-bottom: 1px solid #444;
}

header h1 {
  margin: 0;
  font-size: 1.5rem;
}

/* 메인 컨테이너 */
#main-container {
  padding: 1rem;
}

/* 채팅 UI */
#chat-ui {
  display: flex;
  flex-direction: column;
  max-width: 800px;
  margin: 0 auto;
}

.chat-header {
  font-size: 1rem;
  margin-bottom: 0.5rem;
  color: #ccc;
}

/* 채팅창 */
.chat-container {
  background-color: #2a2a2a;
  border: 1px solid #444;
  border-radius: 8px;
  overflow-y: auto;
  padding: 1rem;
  margin-bottom: 1rem;
}

/* 푸터 */
.chat-footer {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.input-wrapper {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

#prompt {
  padding: 0.75rem;
  font-size: 1rem;
  border: 1px solid #555;
  border-radius: 6px;
  background-color: #1c1c1c;
  color: #fff;
}

#prompt:focus {
  outline: none;
  border-color: #888;
}

/* 모델 추천 버튼 */
.suggestions {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.model-button {
  flex: 1;
  padding: 0.5rem;
  background-color: #3a3a3a;
  color: #fff;
  border: 1px solid #555;
  border-radius: 5px;
  cursor: pointer;
  font-size: 0.9rem;
  transition: background-color 0.2s ease;
}

.model-button:hover {
  background-color: #555;
}

/* 전송 버튼 */
#send-btn {
  padding: 0.75rem;
  font-size: 1rem;
  background-color: #444;
  color: #fff;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  transition: background-color 0.2s ease;
}

#send-btn:hover {
  background-color: #666;
}

/* 모바일 반응형 */
@media (max-width: 600px) {
  .model-button {
    flex: 1 1 100%;
  }

  #send-btn {
    width: 100%;
  }
}