/* =====================================================================
   AI Command Center — Manus UI Enhancement v3.0 (2026-07-09)
   对标 Manus 界面标准的深度优化补丁
   
   改进点：
   1. 工具调用可视化 — Manus 风格状态卡片（图标+步骤+进度）
   2. 代码块折叠 — 长代码独立折叠/展开按钮
   3. 流式打字光标 — 更自然的光标动画
   4. 移动端 iOS 键盘适配 — 防止布局跳动
   5. 导航交互增强 — 悬停效果、活跃状态
   6. 整体视觉精修 — 间距、阴影、圆角对标 Manus
   ===================================================================== */

/* ===== 1. 工具调用可视化 — Manus 风格状态行 ===== */

/* 工具调用状态行容器（thinking 区域增强） */
.thinking-v3 {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  margin: 2px 0;
  border-radius: 10px;
  background: color-mix(in srgb, var(--panel-elevated) 80%, transparent);
  border: 1px solid var(--border);
  font-size: 13px;
  color: var(--text-soft);
  animation: thinkingSlideIn 0.18s ease-out;
  min-height: 40px;
}

@keyframes thinkingSlideIn {
  from { opacity: 0; transform: translateX(-6px); }
  to   { opacity: 1; transform: translateX(0); }
}

/* 工具调用图标容器 */
.thinking-v3-icon {
  display: grid;
  place-items: center;
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: color-mix(in srgb, var(--accent) 12%, var(--panel-muted));
  font-size: 14px;
  flex-shrink: 0;
  transition: background 0.2s;
}

.thinking-v3.tool-active .thinking-v3-icon {
  background: color-mix(in srgb, var(--accent) 20%, var(--panel-muted));
  animation: iconPulse 1.4s ease-in-out infinite;
}

@keyframes iconPulse {
  0%, 100% { transform: scale(1); }
  50%       { transform: scale(1.08); }
}

/* 工具名称标签 */
.thinking-v3-tool {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  color: var(--accent);
  background: color-mix(in srgb, var(--accent) 10%, transparent);
  border: 1px solid color-mix(in srgb, var(--accent) 25%, transparent);
  border-radius: 6px;
  padding: 2px 8px;
  flex-shrink: 0;
  letter-spacing: 0.02em;
}

/* 工具参数摘要 */
.thinking-v3-args {
  flex: 1;
  font-size: 12px;
  color: var(--muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  min-width: 0;
}

/* 工具调用历史列表 */
.tool-history-list {
  display: flex;
  flex-direction: column;
  gap: 3px;
  margin: 4px 0 6px;
}

.tool-history-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 5px 10px;
  border-radius: 8px;
  background: transparent;
  border: 1px solid transparent;
  font-size: 12px;
  color: var(--text-soft);
  transition: background 0.15s;
}

.tool-history-item.done {
  color: var(--muted);
}

.tool-history-item.done .tool-history-icon {
  color: var(--success);
}

.tool-history-item.failed .tool-history-icon {
  color: var(--danger);
}

.tool-history-icon {
  font-size: 13px;
  flex-shrink: 0;
  width: 16px;
  text-align: center;
}

.tool-history-name {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--accent);
  flex-shrink: 0;
}

.tool-history-summary {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--muted);
  font-size: 11px;
}

.tool-history-check {
  font-size: 11px;
  color: var(--success);
  flex-shrink: 0;
}

/* ===== 2. 代码块折叠增强 ===== */

/* 代码块折叠容器 */
.code-block {
  position: relative;
  overflow: hidden;
  transition: max-height 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* 折叠状态的代码块 */
.code-block.code-collapsed pre {
  max-height: 280px;
  overflow: hidden;
  position: relative;
}

/* 折叠渐变遮罩 */
.code-block.code-collapsed pre::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 60px;
  background: linear-gradient(to bottom, transparent, #0d1117 85%);
  pointer-events: none;
}

/* 折叠/展开按钮 */
.code-fold-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  width: 100%;
  padding: 6px 12px;
  background: rgba(255, 255, 255, 0.03);
  border: none;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  color: var(--muted);
  font-size: 12px;
  font-family: var(--font-mono);
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}

.code-fold-btn:hover {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-soft);
}

.code-fold-btn svg {
  width: 12px;
  height: 12px;
  transition: transform 0.2s ease;
  flex-shrink: 0;
}

.code-block:not(.code-collapsed) .code-fold-btn svg {
  transform: rotate(180deg);
}

/* 代码块行数标签 */
.code-line-count {
  font-size: 11px;
  color: var(--muted);
  margin-left: 4px;
  opacity: 0.7;
}

/* 代码块头部增强 */
.code-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  background: rgba(0, 0, 0, 0.25);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  gap: 8px;
}

.code-header-left {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
}

.code-header-right {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
}

/* 语言标签增强 */
.code-header > span:first-child,
.code-lang-label {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.06);
  padding: 2px 8px;
  border-radius: 5px;
  flex-shrink: 0;
}

/* 复制按钮增强 */
.copy-code-button {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 4px 10px;
  font-size: 11px;
  font-weight: 500;
  border-radius: 6px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.04);
  color: var(--muted);
  cursor: pointer;
  transition: all 0.15s ease;
  -webkit-tap-highlight-color: transparent;
}

.copy-code-button:hover {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-soft);
  border-color: rgba(255, 255, 255, 0.15);
}

.copy-code-button.copied {
  background: rgba(34, 197, 94, 0.12) !important;
  border-color: rgba(34, 197, 94, 0.3) !important;
  color: #22c55e !important;
}

/* 浅色主题代码块 */
[data-theme="light"] .code-block.code-collapsed pre::after {
  background: linear-gradient(to bottom, transparent, #f6f8fa 85%);
}

[data-theme="light"] .code-fold-btn {
  background: rgba(0, 0, 0, 0.02);
  border-top-color: rgba(0, 0, 0, 0.06);
  color: var(--muted);
}

[data-theme="light"] .code-fold-btn:hover {
  background: rgba(0, 0, 0, 0.04);
}

[data-theme="light"] .code-header {
  background: rgba(0, 0, 0, 0.04);
  border-bottom-color: rgba(0, 0, 0, 0.06);
}

[data-theme="light"] .copy-code-button {
  border-color: rgba(0, 0, 0, 0.1);
  background: rgba(0, 0, 0, 0.03);
  color: var(--muted);
}

[data-theme="light"] .copy-code-button:hover {
  background: rgba(0, 0, 0, 0.06);
  color: var(--text-soft);
}

/* ===== 3. 流式打字光标优化 ===== */

/* 更自然的光标动画 */
.message-content.streaming::after {
  content: '▋';
  animation: cursorBlink 0.9s ease-in-out infinite;
  color: var(--accent);
  font-size: 0.85em;
  vertical-align: text-bottom;
  margin-left: 1px;
  display: inline;
}

@keyframes cursorBlink {
  0%, 45%  { opacity: 1; }
  55%, 100% { opacity: 0; }
}

/* 流式状态下禁用折叠遮罩（避免遮挡正在输出的内容） */
.message-content.streaming .code-block.code-collapsed pre::after {
  display: none;
}

/* ===== 4. 移动端 iOS 键盘适配 ===== */

/* iOS 键盘弹出时防止布局跳动 */
@supports (-webkit-touch-callout: none) {
  .app-shell {
    height: -webkit-fill-available;
    min-height: -webkit-fill-available;
  }

  .command-center {
    height: 100%;
  }

  .messages-wrap {
    /* iOS 键盘弹出时保持滚动区域 */
    -webkit-overflow-scrolling: touch;
    overscroll-behavior-y: contain;
  }

  /* 防止 iOS 双击缩放 */
  .composer-wrap,
  .send-button,
  .upload-button {
    touch-action: manipulation;
  }

  /* iOS 输入框不自动缩放 */
  textarea.chat-input {
    font-size: max(16px, 1em);
  }
}

/* 移动端键盘弹出时的 viewport 适配 */
@media (max-width: 920px) {
  /* 使用 dvh 单位（动态视口高度，键盘弹出时自动调整） */
  .app-shell {
    height: 100dvh;
  }

  .command-center {
    height: 100dvh;
  }

  /* 移动端消息区域底部留出足够空间 */
  .messages-wrap {
    padding-bottom: calc(var(--composer-offset, 176px) + env(safe-area-inset-bottom, 0px));
  }

  /* 移动端 composer 固定在底部 */
  .composer-wrap {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 60;
    padding-bottom: max(12px, env(safe-area-inset-bottom));
    background: linear-gradient(
      to bottom,
      color-mix(in srgb, var(--bg) 0%, transparent),
      var(--bg) 30%
    );
  }
}

/* ===== 5. 导航交互增强 ===== */

/* 对话列表项 — 更精细的悬停效果 */
.conversation-item {
  transition: background 0.12s ease, border-color 0.12s ease, transform 0.1s ease;
}

.conversation-item:hover {
  transform: translateX(2px);
  background: var(--panel-muted) !important;
}

.conversation-item.active {
  transform: translateX(2px);
}

/* 侧边栏链接悬停 */
.sidebar-link {
  transition: background 0.12s ease, border-color 0.12s ease, color 0.12s ease;
}

/* 新建对话按钮增强 */
.new-chat-button {
  transition: opacity 0.15s ease, transform 0.1s ease, box-shadow 0.15s ease;
}

.new-chat-button:hover {
  opacity: 0.92;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.2);
}

.new-chat-button:active {
  transform: scale(0.98);
}

/* 对话列表搜索框（新增） */
.conversation-search {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0 10px 8px;
  padding: 7px 10px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--panel-muted);
  color: var(--text-soft);
  font-size: 13px;
  transition: border-color 0.15s, background 0.15s;
}

.conversation-search:focus-within {
  border-color: var(--accent);
  background: var(--panel-elevated);
}

.conversation-search input {
  flex: 1;
  border: none;
  background: transparent;
  color: var(--text);
  font-size: 13px;
  outline: none;
}

.conversation-search input::placeholder {
  color: var(--muted);
}

.conversation-search-icon {
  color: var(--muted);
  flex-shrink: 0;
  font-size: 14px;
}

/* ===== 6. 整体视觉精修 ===== */

/* 消息气泡 — 更精细的间距 */
.message {
  animation: msgFadeIn 0.2s ease-out both;
}

@keyframes msgFadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* 用户消息气泡 */
.message.user .message-content {
  transition: background 0.15s;
}

/* AI 消息内容区域 */
.message.assistant .message-content {
  line-height: 1.7;
}

/* Markdown 内容增强 */
.message-content.markdown-body {
  font-size: 14.5px;
  line-height: 1.72;
}

/* 段落间距 */
.message-content.markdown-body p {
  margin: 0.6em 0;
}

.message-content.markdown-body p:first-child {
  margin-top: 0;
}

.message-content.markdown-body p:last-child {
  margin-bottom: 0;
}

/* 标题样式 */
.message-content.markdown-body h1,
.message-content.markdown-body h2,
.message-content.markdown-body h3,
.message-content.markdown-body h4 {
  margin-top: 1.2em;
  margin-bottom: 0.5em;
  font-weight: 650;
  line-height: 1.3;
  color: var(--text);
}

.message-content.markdown-body h1 { font-size: 1.4em; }
.message-content.markdown-body h2 { font-size: 1.2em; }
.message-content.markdown-body h3 { font-size: 1.05em; }

/* 列表样式 */
.message-content.markdown-body ul,
.message-content.markdown-body ol {
  padding-left: 1.4em;
  margin: 0.5em 0;
}

.message-content.markdown-body li {
  margin: 0.25em 0;
  line-height: 1.65;
}

/* 分隔线 */
.message-content.markdown-body hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 1em 0;
}

/* ===== 7. 进度面板精修 ===== */

/* 进度面板 — 更紧凑的 Manus 风格 */
.agent-progress-panel {
  border-radius: 14px !important;
  border: 1px solid color-mix(in srgb, var(--accent) 18%, var(--border)) !important;
  background: color-mix(in srgb, var(--panel-elevated) 95%, var(--accent) 5%) !important;
  overflow: hidden;
}

.agent-progress-header {
  padding: 12px 16px !important;
  border-bottom: 1px solid var(--border) !important;
}

.agent-progress-title {
  font-size: 13px !important;
  font-weight: 650 !important;
  color: var(--text) !important;
  display: flex;
  align-items: center;
  gap: 8px;
}

/* 进度标题前的动态指示点 */
.agent-progress-title::before {
  content: '';
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  animation: progressDot 1.4s ease-in-out infinite;
  flex-shrink: 0;
}

@keyframes progressDot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.4; transform: scale(0.7); }
}

/* 步骤卡片 */
.agent-progress-step {
  border-radius: 10px !important;
  transition: all 0.25s ease !important;
}

.agent-progress-step.running {
  background: color-mix(in srgb, var(--accent) 6%, var(--panel-muted)) !important;
  border-color: color-mix(in srgb, var(--accent) 30%, transparent) !important;
}

/* 步骤图标 */
.agent-progress-step-icon {
  border-radius: 8px !important;
  font-size: 13px !important;
}

/* ===== 8. 空状态增强 ===== */

/* 空状态页面 — 更精致的展示 */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 60px 24px;
  min-height: 60vh;
}

.empty-icon {
  font-size: 48px;
  margin-bottom: 16px;
  opacity: 0.8;
}

.empty-title {
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
  margin: 0 0 8px;
}

.empty-desc {
  font-size: 15px;
  color: var(--muted);
  max-width: 400px;
  line-height: 1.6;
  margin: 0 0 32px;
}

/* 快捷指令卡片增强 */
.quick-prompt {
  transition: all 0.15s ease;
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 12px 16px;
  background: var(--panel);
  color: var(--text-soft);
  font-size: 13.5px;
  line-height: 1.45;
  text-align: left;
  cursor: pointer;
}

.quick-prompt:hover {
  background: var(--panel-elevated);
  border-color: var(--border-strong);
  color: var(--text);
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.12);
}

.quick-prompt:active {
  transform: translateY(0);
}

/* ===== 9. 滚动到底部按钮精修 ===== */

.scroll-to-bottom-btn {
  width: 34px !important;
  height: 34px !important;
  border-radius: 50% !important;
  background: var(--panel-elevated) !important;
  border: 1px solid var(--border-strong) !important;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.18) !important;
  transition: all 0.2s ease !important;
}

.scroll-to-bottom-btn:hover {
  background: var(--accent) !important;
  color: var(--accent-contrast) !important;
  border-color: var(--accent) !important;
  transform: translateY(-1px) !important;
  box-shadow: 0 6px 20px rgba(79, 156, 249, 0.25) !important;
}

/* ===== 10. Toast 通知精修 ===== */

.toast {
  border-radius: 12px !important;
  padding: 10px 14px !important;
  font-size: 13px !important;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2) !important;
  animation: toastIn 0.2s cubic-bezier(0.34, 1.56, 0.64, 1) both !important;
}

@keyframes toastIn {
  from { opacity: 0; transform: translateY(8px) scale(0.92); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

/* ===== 11. 移动端专项优化 ===== */

@media (max-width: 768px) {
  /* 消息间距紧凑 */
  .messages {
    padding: 20px 14px 20px;
    gap: 20px;
  }

  /* 代码块移动端优化 */
  .code-block pre {
    font-size: 12px;
    line-height: 1.55;
  }

  .code-fold-btn {
    font-size: 11px;
    padding: 5px 10px;
  }

  /* 工具调用卡片移动端 */
  .thinking-v3 {
    padding: 6px 10px;
    gap: 8px;
    font-size: 12px;
  }

  .thinking-v3-icon {
    width: 24px;
    height: 24px;
    font-size: 12px;
  }

  /* 进度面板移动端 */
  .agent-progress-panel {
    border-radius: 12px !important;
  }

  .agent-progress-step {
    padding: 6px 10px !important;
  }

  /* 快捷指令移动端 */
  .quick-prompts {
    grid-template-columns: 1fr 1fr;
    gap: 8px;
  }

  .quick-prompt {
    font-size: 12.5px;
    padding: 10px 12px;
  }
}

@media (max-width: 480px) {
  /* 超小屏幕 */
  .quick-prompts {
    grid-template-columns: 1fr;
  }

  .empty-title {
    font-size: 22px;
  }

  .empty-desc {
    font-size: 13px;
  }

  /* 代码块超小屏 */
  .code-header {
    padding: 6px 10px;
  }

  .copy-code-button {
    font-size: 10px;
    padding: 3px 7px;
  }

  /* 工具调用历史移动端隐藏参数 */
  .tool-history-summary {
    display: none;
  }
}

/* ===== 12. 浅色主题适配 ===== */

[data-theme="light"] .thinking-v3 {
  background: color-mix(in srgb, var(--panel-elevated) 90%, transparent);
  border-color: var(--border);
}

[data-theme="light"] .thinking-v3-icon {
  background: color-mix(in srgb, var(--accent) 8%, var(--panel-muted));
}

[data-theme="light"] .tool-history-item.done {
  color: var(--muted);
}

[data-theme="light"] .agent-progress-panel {
  background: color-mix(in srgb, var(--panel-elevated) 95%, var(--accent) 5%) !important;
}

[data-theme="light"] .quick-prompt {
  background: var(--panel);
  border-color: var(--border);
}

[data-theme="light"] .quick-prompt:hover {
  background: var(--panel-elevated);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.06);
}

/* ===== END Manus UI Enhancement v3.0 ===== */