/* conversation.css - 对话组件样式 */

/* 主聊天区域 */
.main {
  display: flex;
  flex-direction: column;
  height: 100%;
  background: var(--surface-1);
  border-radius: var(--border-radius-xl);
  overflow: hidden;
  box-shadow: var(--box-shadow-md);
}

/* 聊天容器 */
.chat-container {
  flex-grow: 1;
  padding: 24px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
  min-height: 0;
  background-color: var(--surface-1);
}

/* 聊天输入区 */
.chat-input-container {
  display: flex;
  align-items: flex-end;
  gap: 12px;
  padding: 16px 20px;
  border-top: 1px solid var(--border-color-light);
  background-color: var(--surface-1);
  border-bottom-left-radius: var(--border-radius-xl);
  border-bottom-right-radius: var(--border-radius-xl);
  box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.03);
}

/* 消息样式 */
.message {
  padding: 0;
  max-width: 85%;
  word-wrap: break-word;
  position: relative;
  animation: fadeIn 0.3s ease;
}

/* 用户消息气泡 */
.user-message {
  align-self: flex-end;
  margin-left: 15%;
}

.user-message .message-content {
  background-color: var(--primary);
  color: var(--text-light);
  border-radius: 18px 18px 4px 18px;
  padding: 12px 16px;
  box-shadow: 0 2px 4px rgba(66, 99, 235, 0.2);
  position: relative;
}

/* 模型消息气泡 */
.model-message {
  align-self: flex-start;
  margin-right: 15%;
}

.model-message .message-content {
  background-color: var(--surface-2);
  color: var(--text-primary);
  border-radius: 18px 18px 18px 4px;
  padding: 12px 16px;
  border: 1px solid var(--border-color-light);
  box-shadow: var(--box-shadow-sm);
  position: relative;
}

/* 错误消息 */
.model-message.error-message .message-content {
  background-color: rgba(224, 49, 49, 0.08);
  color: var(--error);
  border: 1px solid rgba(224, 49, 49, 0.2);
}

/* 加载中消息 */
.loading-message .message-content {
  display: flex;
  align-items: center;
  gap: 10px;
  background-color: var(--surface-2);
  border-radius: 18px;
  padding: 12px 16px;
  border: 1px solid var(--border-color-light);
}

.loading-message span {
  color: var(--text-secondary);
  font-size: 0.95em;
}

/* 消息内容样式 */
.message-content {
  white-space: pre-wrap;
  width: 100%;
  margin-top: 0;
}

/* 行内代码样式 */
.message-content code {
  background-color: rgba(0, 0, 0, 0.05);
  padding: 2px 5px;
  border-radius: var(--border-radius-sm);
  font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, Courier, monospace;
  font-size: 0.9em;
  border: 1px solid rgba(0, 0, 0, 0.08);
}

/* 代码块样式 - 修复重叠问题 */
.message-content pre {
  background-color: rgba(0, 0, 0, 0.03);
  padding: 36px 16px 12px 16px; /* 增加顶部 padding 为语言标签留出空间 */
  border-radius: var(--border-radius);
  overflow-x: auto;
  overflow-y: auto;
  max-height: 350px;
  border: 1px solid rgba(0, 0, 0, 0.08);
  margin: 10px 0;
  position: relative; /* 为工具栏提供定位基准 */
}

.message-content pre code {
  background-color: transparent;
  padding: 0;
  border-radius: 0;
  white-space: pre;
  border: none;
  display: block;
  position: relative; /* 确保代码内容相对定位 */
}

/* 语言标签样式 - 绝对定位到顶部 */
.language-label {
  position: absolute;
  top: 6px;
  left: 10px;
  background: var(--primary);
  color: var(--text-light);
  padding: 3px 8px;
  font-size: 11px;
  font-weight: 500;
  border-radius: var(--border-radius-sm);
  opacity: 0.9;
  z-index: 2;
  height: 20px; /* 固定高度 */
  line-height: 14px; /* 确保文字居中 */
  display: flex;
  align-items: center;
}

/* 代码块工具栏样式 */
.code-toolbar {
  position: absolute;
  top: 6px;
  right: 10px;
  opacity: 0;
  transition: opacity var(--transition-fast);
  z-index: 2;
}

.message-content pre:hover .code-toolbar {
  opacity: 1;
}

.copy-code-btn {
  background: rgba(255, 255, 255, 0.95);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  padding: 4px 8px;
  font-size: 12px;
  cursor: pointer;
  transition: all var(--transition-fast);
  color: var(--text-secondary);
  box-shadow: var(--box-shadow-sm);
  margin: 0;
  width: auto;
  height: 20px; /* 固定高度，与语言标签一致 */
  display: flex;
  align-items: center;
  gap: 4px;
  line-height: 1;
}

.copy-code-btn:hover {
  background: white;
  color: var(--text-primary);
  box-shadow: var(--box-shadow-md);
  transform: translateY(-1px);
}

.copy-code-btn:active {
  transform: translateY(0);
}

/* 暗色主题适配 */
:root.theme-dark .copy-code-btn {
  background: rgba(45, 45, 45, 0.95);
  color: var(--text-secondary);
}

:root.theme-dark .copy-code-btn:hover {
  background: var(--surface-2);
  color: var(--text-primary);
}

:root.theme-dark .message-content code {
  background-color: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

:root.theme-dark .message-content pre {
  background-color: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

/* 高对比度主题适配 */
:root.theme-high-contrast .copy-code-btn {
  background: white;
  color: black;
  border: 2px solid black;
  font-weight: bold;
}

:root.theme-high-contrast .copy-code-btn:hover {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}

/* 确保代码内容不与标签重叠 */
.message-content pre[class*="language-"] {
  padding-top: 36px; /* 为带有语言类的代码块增加顶部间距 */
}

/* 针对 Prism.js 语法高亮的特殊处理 */
:root.theme-light pre[class*="language-"] {
  background: var(--surface-2);
  border: 1px solid var(--border-color-light);
}

:root.theme-dark pre[class*="language-"] {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

:root.theme-high-contrast pre[class*="language-"] {
  background: white;
  border: 2px solid black;
}

/* 其他样式保持不变 */
.message-content strong, .message-content b {
  font-weight: 600;
}

.message-content em, .message-content i {
  font-style: italic;
}

.message-content ul, .message-content ol {
  margin-left: 20px;
  margin-top: 8px;
  margin-bottom: 8px;
  padding-left: 10px;
}

.message-content li {
  margin-bottom: 4px;
}

.message-content a {
  color: var(--primary);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition-fast);
}

.message-content a:hover {
  border-bottom-color: var(--primary);
}

/* 数学公式样式 */
.message-content mjx-container {
  margin: 8px 0;
  line-height: 1.2;
}

.message-content mjx-container[display="true"] {
  display: block;
  overflow-x: auto;
  padding: 8px;
  background-color: var(--surface-2);
  border-radius: var(--border-radius);
  border: 1px solid var(--border-color-light);
}

.message-content mjx-container[display="true"]::-webkit-scrollbar {
  height: 6px;
}

.message-content mjx-container[display="true"]::-webkit-scrollbar-track {
  background: transparent;
}

.message-content mjx-container[display="true"]::-webkit-scrollbar-thumb {
  background-color: var(--border-color);
  border-radius: 3px;
}

.message-content mjx-container[display="true"]::-webkit-scrollbar-thumb:hover {
  background-color: var(--gray-400);
}

/* 消息工具栏 */
.message-toolbar {
  display: flex;
  gap: 8px;
  margin-top: 6px;
  justify-content: flex-end;
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.message:hover .message-toolbar {
  opacity: 1;
}

.message-toolbar button {
  width: 28px;
  height: 28px;
  padding: 0;
  background-color: var(--surface-1);
  color: var(--text-secondary);
  border: 1px solid var(--border-color-light);
  border-radius: var(--border-radius-circle);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0;
}

.message-toolbar button:hover {
  background-color: var(--surface-2);
  color: var(--text-primary);
}

/* 欢迎消息 */
.welcome-message {
  text-align: center;
  max-width: 600px;
  margin: 0 auto;
  padding: 20px;
  background-color: var(--surface-2);
  border-radius: var(--border-radius-lg);
  border: 1px solid var(--border-color-light);
}

.welcome-message h1 {
  margin-bottom: 16px;
  color: var(--primary);
}

.welcome-message p {
  margin-bottom: 12px;
  color: var(--text-secondary);
}

.welcome-actions {
  display: flex;
  gap: 12px;
  margin-top: 20px;
  justify-content: center;
}

/* 消息分组与日期分隔 */
.message-date-separator {
  display: flex;
  align-items: center;
  margin: 20px 0;
  color: var(--text-muted);
  font-size: 12px;
}

.message-date-separator::before,
.message-date-separator::after {
  content: "";
  flex-grow: 1;
  height: 1px;
  background-color: var(--border-color-light);
}

.message-date-separator::before {
  margin-right: 15px;
}

.message-date-separator::after {
  margin-left: 15px;
}

/* 新消息指示器 */
.new-messages-indicator {
  position: sticky;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--primary);
  color: white;
  padding: 6px 12px;
  border-radius: var(--border-radius-pill);
  font-size: 13px;
  box-shadow: var(--box-shadow-md);
  cursor: pointer;
  opacity: 0;
  transition: opacity var(--transition-normal);
  z-index: 5;
}

.new-messages-indicator.visible {
  opacity: 1;
}

.new-messages-indicator:hover {
  background-color: var(--primary-hover);
}

/* 添加行号支持（如果使用 Prism.js 行号插件）*/
.line-numbers .line-numbers-rows {
  background: var(--surface-2);
  border-right: 1px solid var(--border-color);
  color: var(--text-muted);
}

:root.theme-dark .line-numbers .line-numbers-rows {
  background: rgba(255, 255, 255, 0.05);
  border-right: 1px solid rgba(255, 255, 255, 0.1);
}