/**
 * GenAI Book 챗봇 위젯 스타일
 * MkDocs Material 테마와 조화
 */

/* ===================================
   변수 정의
   =================================== */
.genai-chatbot {
  --chatbot-primary: #2D5A4A;
  --chatbot-primary-light: #4DB6AC;
  --chatbot-bg: #ffffff;
  --chatbot-bg-secondary: #f5f5f5;
  --chatbot-text: #1a1a1a;
  --chatbot-text-secondary: #666666;
  --chatbot-border: #e0e0e0;
  --chatbot-shadow: 0 4px 24px rgba(0, 0, 0, 0.15);
  --chatbot-radius: 16px;
}

/* 다크 모드 */
[data-md-color-scheme="slate"] .genai-chatbot {
  --chatbot-primary: #4DB6AC;
  --chatbot-primary-light: #80CBC4;
  --chatbot-bg: #2d2d2d;
  --chatbot-bg-secondary: #252525;
  --chatbot-text: #e0e0e0;
  --chatbot-text-secondary: #a0a0a0;
  --chatbot-border: #404040;
  --chatbot-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
}

/* ===================================
   위젯 컨테이너
   =================================== */
.genai-chatbot {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 9999;
  font-family: var(--md-text-font, -apple-system, BlinkMacSystemFont, sans-serif);
}

/* ===================================
   토글 버튼
   =================================== */
.chatbot-toggle {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  border: none;
  background: var(--chatbot-primary);
  color: white;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--chatbot-shadow);
  transition: all 0.3s ease;
}

.chatbot-toggle:hover {
  transform: scale(1.05);
  background: var(--chatbot-primary-light);
}

.chatbot-toggle svg {
  width: 24px;
  height: 24px;
}

.chatbot-toggle .icon-close {
  display: none;
}

.genai-chatbot.open .chatbot-toggle .icon-chat {
  display: none;
}

.genai-chatbot.open .chatbot-toggle .icon-close {
  display: block;
}

/* ===================================
   채팅 컨테이너
   =================================== */
.chatbot-container {
  position: absolute;
  bottom: 72px;
  right: 0;
  width: 380px;
  max-width: calc(100vw - 48px);
  height: 520px;
  max-height: calc(100vh - 120px);
  background: var(--chatbot-bg);
  border-radius: var(--chatbot-radius);
  box-shadow: var(--chatbot-shadow);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px) scale(0.95);
  transition: all 0.3s ease;
}

.genai-chatbot.open .chatbot-container {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
}

/* ===================================
   헤더
   =================================== */
.chatbot-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px;
  background: var(--chatbot-primary);
  color: white;
}

.chatbot-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  font-size: 15px;
}

.chatbot-icon {
  width: 32px;
  height: 32px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
}

.chatbot-clear {
  background: none;
  border: none;
  color: rgba(255, 255, 255, 0.7);
  cursor: pointer;
  padding: 8px;
  border-radius: 8px;
  transition: all 0.2s;
}

.chatbot-clear:hover {
  background: rgba(255, 255, 255, 0.1);
  color: white;
}

.chatbot-clear svg {
  width: 18px;
  height: 18px;
}

/* ===================================
   메시지 영역
   =================================== */
.chatbot-messages {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

/* 스크롤바 스타일 */
.chatbot-messages::-webkit-scrollbar {
  width: 6px;
}

.chatbot-messages::-webkit-scrollbar-track {
  background: transparent;
}

.chatbot-messages::-webkit-scrollbar-thumb {
  background: var(--chatbot-border);
  border-radius: 3px;
}

/* ===================================
   웰컴 메시지
   =================================== */
.chatbot-welcome {
  text-align: center;
  padding: 24px 16px;
  color: var(--chatbot-text-secondary);
  font-size: 14px;
  line-height: 1.6;
}

.chatbot-welcome p {
  margin: 0 0 8px;
}

.chatbot-welcome strong {
  color: var(--chatbot-primary);
}

.chatbot-suggestions {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 16px;
}

.suggestion-btn {
  background: var(--chatbot-bg-secondary);
  border: 1px solid var(--chatbot-border);
  border-radius: 20px;
  padding: 8px 16px;
  font-size: 13px;
  color: var(--chatbot-text);
  cursor: pointer;
  transition: all 0.2s;
}

.suggestion-btn:hover {
  background: var(--chatbot-primary);
  color: white;
  border-color: var(--chatbot-primary);
}

/* ===================================
   메시지 스타일
   =================================== */
.chatbot-message {
  display: flex;
  flex-direction: column;
  max-width: 85%;
}

.chatbot-message.user {
  align-self: flex-end;
}

.chatbot-message.assistant,
.chatbot-message.error {
  align-self: flex-start;
}

.message-content {
  display: flex;
  gap: 8px;
  align-items: flex-start;
}

.chatbot-message.user .message-content {
  flex-direction: row-reverse;
}

.message-icon {
  width: 28px;
  height: 28px;
  background: var(--chatbot-primary);
  color: white;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  font-weight: 700;
  flex-shrink: 0;
}

.message-text {
  background: var(--chatbot-bg-secondary);
  padding: 12px 16px;
  border-radius: 16px;
  font-size: 14px;
  line-height: 1.5;
  color: var(--chatbot-text);
}

.chatbot-message.user .message-text {
  background: var(--chatbot-primary);
  color: white;
  border-bottom-right-radius: 4px;
}

.chatbot-message.assistant .message-text {
  border-bottom-left-radius: 4px;
}

.message-text code {
  background: rgba(0, 0, 0, 0.1);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 13px;
}

/* 에러 메시지 */
.message-content.error {
  background: #fff3f3;
  border: 1px solid #ffcdd2;
  padding: 12px 16px;
  border-radius: 12px;
  color: #c62828;
  font-size: 13px;
  display: flex;
  align-items: center;
  gap: 8px;
}

[data-md-color-scheme="slate"] .message-content.error {
  background: #4d3535;
  border-color: #6d4545;
  color: #ff8a80;
}

.message-content.error svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

/* 소스 링크 */
.message-sources {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 8px;
  margin-left: 36px;
  font-size: 12px;
}

.sources-label {
  color: var(--chatbot-text-secondary);
}

.source-link {
  color: var(--chatbot-primary);
  text-decoration: none;
  padding: 2px 8px;
  background: var(--chatbot-bg-secondary);
  border-radius: 4px;
  transition: all 0.2s;
}

.source-link:hover {
  background: var(--chatbot-primary);
  color: white;
}

/* ===================================
   타이핑 인디케이터
   =================================== */
.typing-indicator {
  display: flex;
  gap: 4px;
  padding: 12px 16px;
  background: var(--chatbot-bg-secondary);
  border-radius: 16px;
  border-bottom-left-radius: 4px;
}

.typing-indicator span {
  width: 8px;
  height: 8px;
  background: var(--chatbot-text-secondary);
  border-radius: 50%;
  animation: typing 1.4s infinite ease-in-out both;
}

.typing-indicator span:nth-child(1) {
  animation-delay: -0.32s;
}

.typing-indicator span:nth-child(2) {
  animation-delay: -0.16s;
}

@keyframes typing {
  0%, 80%, 100% {
    transform: scale(0.6);
    opacity: 0.5;
  }
  40% {
    transform: scale(1);
    opacity: 1;
  }
}

/* ===================================
   입력 폼
   =================================== */
.chatbot-input-form {
  display: flex;
  gap: 8px;
  padding: 16px;
  border-top: 1px solid var(--chatbot-border);
  background: var(--chatbot-bg);
}

.chatbot-input {
  flex: 1;
  padding: 12px 16px;
  border: 1px solid var(--chatbot-border);
  border-radius: 24px;
  font-size: 14px;
  background: var(--chatbot-bg-secondary);
  color: var(--chatbot-text);
  outline: none;
  transition: all 0.2s;
}

.chatbot-input:focus {
  border-color: var(--chatbot-primary);
  box-shadow: 0 0 0 3px rgba(77, 182, 172, 0.1);
}

.chatbot-input::placeholder {
  color: var(--chatbot-text-secondary);
}

.chatbot-send {
  width: 44px;
  height: 44px;
  border: none;
  border-radius: 50%;
  background: var(--chatbot-primary);
  color: white;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
}

.chatbot-send:disabled {
  background: var(--chatbot-border);
  cursor: not-allowed;
}

.chatbot-send:not(:disabled):hover {
  background: var(--chatbot-primary-light);
  transform: scale(1.05);
}

.chatbot-send svg {
  width: 18px;
  height: 18px;
}

/* ===================================
   반응형
   =================================== */
@media screen and (max-width: 480px) {
  .genai-chatbot {
    bottom: 16px;
    right: 16px;
  }

  .chatbot-container {
    width: calc(100vw - 32px);
    height: calc(100vh - 100px);
    bottom: 68px;
  }

  .chatbot-toggle {
    width: 52px;
    height: 52px;
  }
}

/* ===================================
   인쇄 시 숨김
   =================================== */
@media print {
  .genai-chatbot {
    display: none;
  }
}