/* ==========================================================================
   json.l - 核心样式表 (style.css)
   基于自然纸墨与森林绿调的纯原生双栏阅读器体验
   主色规范:
     - 暖白底色 (warm offwhite): #f6f5f1
     - 墨黑色阶 (ink):           #242923
     - 森林绿 (forest):          #35725b
   ========================================================================== */

:root {
  --bg-app: #f6f5f1;
  --bg-surface: #ffffff;
  --bg-surface-alt: #fcfbf9;
  --bg-surface-tint: #f1efe9;
  --bg-forest-light: #ebf3ef;
  --bg-forest-subtle: #f4f8f6;

  --color-ink: #242923;
  --color-ink-secondary: #575e55;
  --color-ink-muted: #828a7f;
  --color-ink-light: #a3aaa0;

  --color-forest: #35725b;
  --color-forest-hover: #295b48;
  --color-forest-active: #1f4738;
  --color-forest-border: #bcd5c9;

  --color-border: #dedad1;
  --color-border-subtle: #e9e6df;
  --color-border-focus: #35725b;

  --color-error: #c53929;
  --color-error-bg: #fdf2f0;
  --color-error-border: #f5c2bc;

  --color-warn: #b86a24;
  --color-warn-bg: #fdf6ec;

  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Monaco, Consolas, "Liberation Mono", monospace;

  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --radius-full: 9999px;

  --shadow-sm: 0 1px 2px rgba(36, 41, 35, 0.05);
  --shadow-md: 0 4px 12px rgba(36, 41, 35, 0.08);
  --shadow-lg: 0 8px 24px rgba(36, 41, 35, 0.12);

  --header-height: 56px;
  --footer-height: 36px;
}

/* 基础重置 */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background-color: var(--bg-app);
  color: var(--color-ink);
  font-family: var(--font-sans);
  font-size: 13px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  display: flex;
  flex-direction: column;
}

button, input, textarea {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
  border: none;
  background: none;
}

button {
  cursor: pointer;
  user-select: none;
}

.visually-hidden {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

/* ==========================================================================
   1. 顶部 Header (56px)
   ========================================================================== */
.app-header {
  height: var(--header-height);
  min-height: var(--header-height);
  max-height: var(--header-height);
  background-color: var(--bg-app);
  border-bottom: 1px solid var(--color-border);
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  z-index: 10;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand-logo {
  width: 28px;
  height: 28px;
  background-color: var(--color-forest);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-sm);
}

.logo-brackets {
  color: #ffffff;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: -1px;
}

.brand-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-ink);
  letter-spacing: -0.3px;
}

.brand-divider {
  width: 1px;
  height: 14px;
  background-color: var(--color-border);
  margin: 0 2px;
}

.brand-subtitle {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.8px;
  color: var(--color-ink-muted);
}

.header-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

.status-indicator {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  background-color: transparent;
  color: var(--color-ink-secondary);
  font-size: 12px;
}

.status-dot {
  width: 7px;
  height: 7px;
  background-color: var(--color-forest);
  border-radius: 50%;
  display: inline-block;
  box-shadow: 0 0 0 2px var(--bg-forest-light);
}

.status-text {
  font-weight: 500;
}

/* ==========================================================================
   2. 标题区 (Hero Section)
   ========================================================================== */
.hero-section {
  padding: 12px 24px 8px;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  flex-shrink: 0;
}

.hero-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-ink);
  line-height: 1.25;
}

.hero-desc {
  font-size: 12px;
  color: var(--color-ink-muted);
  margin-top: 2px;
}

/* 移动端视图切换 Tab（默认桌面端隐藏） */
.mobile-view-tabs {
  display: none;
  background-color: var(--bg-surface-tint);
  padding: 3px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}

.mobile-tab {
  padding: 4px 12px;
  font-size: 12px;
  font-weight: 500;
  color: var(--color-ink-secondary);
  border-radius: var(--radius-sm);
  transition: all 0.15s ease;
}

.mobile-tab.active {
  background-color: var(--bg-surface);
  color: var(--color-forest);
  box-shadow: var(--shadow-sm);
  font-weight: 600;
}

/* ==========================================================================
   3. 主工作区布局 (双栏 36% / 64%)
   ========================================================================== */
.main-workspace {
  flex: 1;
  min-height: 0; /* 允许内部容器溢出滚动 */
  display: flex;
  gap: 16px;
  padding: 8px 24px 12px;
}

.panel {
  background-color: var(--bg-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  min-height: 0;
}

.panel-source {
  flex: 0 0 36%;
  width: 36%;
  min-width: 320px;
}

.panel-tree {
  flex: 1 1 64%;
  width: 64%;
  min-width: 460px;
}

/* 面板头部 */
.panel-header {
  height: 42px;
  min-height: 42px;
  padding: 0 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--color-border-subtle);
  background-color: var(--bg-surface-alt);
  gap: 10px;
}

.panel-title-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.panel-title {
  font-size: 13px;
  font-weight: 700;
  color: var(--color-ink);
  letter-spacing: -0.1px;
}

.panel-actions {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
}

/* ==========================================================================
   4. 按钮组件与徽章规范
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  height: 28px;
  padding: 0 10px;
  border-radius: var(--radius-md);
  font-size: 12px;
  font-weight: 500;
  transition: all 0.15s ease;
  white-space: nowrap;
}

.btn-sm {
  height: 26px;
  padding: 0 8px;
  font-size: 12px;
}

.btn-ghost {
  color: var(--color-ink-secondary);
  background-color: transparent;
  border: 1px solid transparent;
}

.btn-ghost:hover {
  background-color: var(--bg-surface-tint);
  color: var(--color-ink);
}

.btn-ghost:active {
  background-color: var(--color-border);
}

.btn-primary {
  background-color: var(--color-forest);
  color: #ffffff;
  border: 1px solid var(--color-forest);
}

.btn-primary:hover {
  background-color: var(--color-forest-hover);
  border-color: var(--color-forest-hover);
}

.btn-primary-outline {
  background-color: transparent;
  color: var(--color-forest);
  border: 1px solid var(--color-forest);
}

.btn-primary-outline:hover {
  background-color: var(--bg-forest-light);
}

.btn-primary-sm {
  height: 26px;
  padding: 0 10px;
  background-color: var(--color-forest);
  color: #ffffff;
  border-radius: var(--radius-md);
  font-size: 12px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  box-shadow: var(--shadow-sm);
  transition: all 0.15s ease;
}

.btn-primary-sm:hover {
  background-color: var(--color-forest-hover);
}

.kbd-hint {
  display: inline-block;
  padding: 1px 4px;
  font-size: 10px;
  font-family: var(--font-mono);
  background-color: rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-sm);
  line-height: 1;
}

.btn-icon {
  width: 24px;
  height: 24px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  color: var(--color-ink-muted);
  transition: all 0.15s ease;
}

.btn-icon:hover {
  background-color: var(--bg-surface-tint);
  color: var(--color-ink);
}

.btn-icon-tiny {
  width: 20px;
  height: 20px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  color: var(--color-ink-muted);
}

.btn-icon-tiny:hover {
  background-color: var(--bg-surface-tint);
  color: var(--color-forest);
}

/* 胶囊徽章 */
.pill-badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 7px;
  border-radius: var(--radius-full);
  font-size: 11px;
  font-weight: 600;
  line-height: 1.2;
}

.pill-green {
  background-color: var(--bg-forest-light);
  color: var(--color-forest);
  border: 1px solid var(--color-forest-border);
}

.format-badge {
  padding: 1px 6px;
  background-color: var(--bg-surface-tint);
  color: var(--color-ink-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
}

/* ==========================================================================
   5. 左侧编辑器面板细节
   ========================================================================== */
.error-banner {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  padding: 8px 12px;
  background-color: var(--color-error-bg);
  border-bottom: 1px solid var(--color-error-border);
  color: var(--color-error);
  font-size: 12px;
}

.error-icon {
  flex-shrink: 0;
  margin-top: 1px;
}

.error-message {
  flex: 1;
  word-break: break-word;
  line-height: 1.4;
  font-family: var(--font-mono);
  font-size: 11px;
}

.error-close {
  font-size: 16px;
  line-height: 1;
  color: var(--color-error);
  padding: 0 4px;
}

.editor-wrapper {
  flex: 1;
  min-height: 0;
  position: relative;
  display: flex;
  background-color: #ffffff;
  overflow: hidden;
}

.gutter {
  width: 44px;
  min-width: 44px;
  background-color: var(--bg-surface-alt);
  border-right: 1px solid var(--color-border-subtle);
  color: var(--color-ink-light);
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 20px;
  padding: 12px 6px 12px 0;
  text-align: right;
  user-select: none;
  overflow: hidden;
  white-space: pre;
}

.raw-textarea {
  flex: 1;
  height: 100%;
  padding: 12px;
  resize: none;
  outline: none;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 20px;
  color: var(--color-ink);
  background-color: #ffffff;
  white-space: pre;
  overflow: auto;
  tab-size: 2;
}

.raw-textarea::placeholder {
  color: var(--color-ink-light);
  line-height: 1.6;
}

/* 拖拽提示遮罩 */
.drop-overlay {
  position: absolute;
  inset: 0;
  background-color: rgba(246, 245, 241, 0.94);
  backdrop-filter: blur(2px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 20;
  border: 2px dashed var(--color-forest);
  border-radius: var(--radius-md);
  margin: 6px;
}

.drop-overlay.active {
  display: flex;
}

.drop-modal {
  text-align: center;
  color: var(--color-forest);
}

.drop-title {
  font-size: 15px;
  font-weight: 700;
  margin-top: 8px;
  color: var(--color-ink);
}

.drop-sub {
  font-size: 12px;
  color: var(--color-ink-muted);
  margin-top: 4px;
}

/* 面板底部元信息 */
.panel-footer-meta {
  height: 32px;
  min-height: 32px;
  padding: 0 12px;
  background-color: var(--bg-surface-alt);
  border-top: 1px solid var(--color-border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 11px;
  color: var(--color-ink-muted);
}

.meta-item {
  font-family: var(--font-mono);
  font-weight: 500;
}

.meta-hint {
  color: var(--color-ink-light);
}

/* ==========================================================================
   6. 右侧面板工具栏、搜索框与导出菜单
   ========================================================================== */
.search-box-wrap {
  flex: 1 1 200px;
  min-width: 140px;
  max-width: 280px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.search-input-group {
  flex: 1;
  height: 28px;
  position: relative;
  display: flex;
  align-items: center;
  background-color: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 0 8px;
  transition: all 0.15s ease;
}

.search-input-group:focus-within {
  border-color: var(--color-forest);
  box-shadow: 0 0 0 2px var(--bg-forest-light);
}

.search-icon {
  color: var(--color-ink-muted);
  flex-shrink: 0;
  margin-right: 6px;
}

.search-input {
  width: 100%;
  height: 100%;
  font-size: 12px;
  color: var(--color-ink);
  outline: none;
}

.search-input::placeholder {
  color: var(--color-ink-light);
}

.search-count {
  font-size: 11px;
  font-family: var(--font-mono);
  color: var(--color-forest);
  font-weight: 600;
  padding: 1px 4px;
  background-color: var(--bg-forest-light);
  border-radius: var(--radius-sm);
  white-space: nowrap;
}

.search-nav-btns {
  display: flex;
  align-items: center;
  gap: 2px;
  flex-shrink: 0;
}

/* 下拉菜单 (Dropdown) */
.dropdown {
  position: relative;
  display: inline-block;
}

.dropdown-trigger {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.icon-caret {
  margin-left: 1px;
  color: var(--color-ink-muted);
  transition: transform 0.15s ease;
}

.dropdown.open .icon-caret {
  transform: rotate(180deg);
}

.dropdown-menu,
#export-menu {
  position: absolute;
  top: calc(100% + 4px);
  right: 0;
  width: 240px;
  background-color: var(--bg-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  padding: 6px;
  z-index: 100;
  display: none;
  flex-direction: column;
  gap: 2px;
}

.dropdown.open .dropdown-menu,
.dropdown.open #export-menu,
.dropdown-trigger[aria-expanded="true"] + .dropdown-menu,
.dropdown-trigger[aria-expanded="true"] + #export-menu,
.dropdown-menu[style*="display: block"],
#export-menu[style*="display: block"] {
  display: flex !important;
  flex-direction: column !important;
}

.dropdown-item {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  width: 100%;
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  background: transparent;
  border: none;
  text-align: left;
  cursor: pointer;
  transition: background-color 0.12s ease;
}

.dropdown-item:hover {
  background-color: var(--bg-forest-light);
}

.dropdown-item .item-title {
  font-size: 12px;
  font-weight: 600;
  color: var(--color-ink);
  line-height: 1.3;
}

.dropdown-item .item-sub {
  font-size: 11px;
  color: var(--color-ink-muted);
  line-height: 1.3;
  margin-top: 2px;
}

.dropdown-divider {
  height: 1px;
  background-color: var(--color-border-subtle);
  margin: 4px 0;
  width: 100%;
}

/* ==========================================================================
   7. 树视图视口与空状态 (居中对齐)
   ========================================================================== */
.tree-viewport {
  flex: 1;
  min-height: 0;
  overflow: auto;
  position: relative;
  padding: 16px;
  background-color: #ffffff;
  display: flex;
  flex-direction: column;
}

/* 空状态完整居中 */
.empty-state {
  margin: auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 40px 16px;
  max-width: 420px;
}

.empty-icon-wrap {
  margin-bottom: 16px;
}

.empty-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--color-ink);
  margin-bottom: 6px;
}

.empty-desc {
  font-size: 12px;
  color: var(--color-ink-muted);
  line-height: 1.6;
  margin-bottom: 20px;
}

.empty-actions {
  display: flex;
  gap: 10px;
}

/* ==========================================================================
   8. 树节点动态结构 (对齐 app.mjs 实时类名)
   ========================================================================== */
.tree-root {
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 22px;
  color: var(--color-ink);
  width: 100%;
}

.tree-node {
  position: relative;
  width: 100%;
}

/* 节点主行 (node-row & tree-row 兼容) */
.node-row,
.tree-row {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  transition: background-color 0.1s ease;
  min-height: 24px;
  position: relative;
  user-select: text;
}

.node-row:hover,
.tree-row:hover {
  background-color: var(--bg-surface-tint);
}

/* 折叠/展开按钮 */
.node-toggle,
.tree-toggle {
  width: 18px;
  height: 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--color-ink-muted);
  cursor: pointer;
  flex-shrink: 0;
  border-radius: var(--radius-sm);
  transition: color 0.15s ease, background-color 0.15s ease;
  border: none;
  background: transparent;
  padding: 0;
}

.node-toggle:hover,
.tree-toggle:hover {
  color: var(--color-forest);
  background-color: var(--bg-forest-light);
}

.toggle-arrow {
  font-size: 10px;
  line-height: 1;
  display: inline-block;
  user-select: none;
}

/* 基础类型缩进点 */
.node-bullet {
  width: 18px;
  height: 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--color-ink-light);
  flex-shrink: 0;
  font-size: 12px;
  user-select: none;
}

/* 键名与冒号 */
.node-key,
.tree-key {
  font-weight: 600;
  color: var(--color-ink);
  user-select: text;
}

.node-colon,
.tree-colon {
  color: var(--color-ink-light);
  margin: 0 2px;
  user-select: none;
}

/* 数组与对象括号数量徽章 */
.node-bracket-wrap {
  display: inline-flex;
  align-items: center;
}

.node-count-badge {
  font-size: 11px;
  color: var(--color-ink-muted);
  background-color: var(--bg-surface-tint);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-sm);
  padding: 0 6px;
  margin-left: 4px;
  user-select: none;
  font-family: var(--font-mono);
}

/* 嵌套 JSON 绿色层数徽标 */
.badge-json-layer {
  display: inline-flex;
  align-items: center;
  padding: 1px 7px;
  margin-left: 6px;
  font-size: 11px;
  font-weight: 600;
  font-family: var(--font-mono);
  color: var(--color-forest);
  background-color: var(--bg-forest-light);
  border: 1px solid var(--color-forest-border);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all 0.15s ease;
  white-space: nowrap;
}

.badge-json-layer:hover {
  background-color: #dbebe3;
  border-color: var(--color-forest);
}

/* 行级悬浮快捷操作 (复制路径、复制值) */
.node-row-actions,
.row-actions {
  display: none;
  align-items: center;
  gap: 4px;
  margin-left: auto;
  padding-left: 8px;
}

.node-row:hover .node-row-actions,
.tree-row:hover .row-actions {
  display: inline-flex;
}

.row-action-btn,
.btn-row-action {
  height: 20px;
  padding: 0 6px;
  font-size: 11px;
  font-family: var(--font-sans);
  font-weight: 500;
  color: var(--color-ink-muted);
  background-color: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  gap: 3px;
  box-shadow: 0 1px 2px rgba(36, 41, 35, 0.04);
  cursor: pointer;
  transition: all 0.12s ease;
}

.row-action-btn:hover,
.btn-row-action:hover {
  color: var(--color-forest);
  border-color: var(--color-forest-border);
  background-color: var(--bg-forest-light);
}

/* 子节点缩进导轨 */
.node-children,
.tree-children {
  padding-left: 18px;
  position: relative;
}

.node-children::before,
.tree-children::before {
  content: "";
  position: absolute;
  left: 9px;
  top: 2px;
  bottom: 2px;
  width: 1px;
  background-color: var(--color-border-subtle);
}

/* 闭合括号行 */
.node-close-row {
  padding-left: 18px;
  color: var(--color-ink-muted);
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 20px;
  user-select: text;
}

/* 渲染预算超出安全提示 */
.tree-budget-notice {
  margin: 16px 0 8px;
  padding: 10px 14px;
  background-color: var(--color-warn-bg);
  border: 1px dashed var(--color-warn);
  border-radius: var(--radius-md);
  color: var(--color-warn);
  font-size: 12px;
  font-family: var(--font-sans);
  text-align: center;
}

.node-limit-notice {
  font-size: 11px;
  color: var(--color-ink-light);
  font-style: italic;
  padding: 2px 18px;
  font-family: var(--font-sans);
}

/* ==========================================================================
   9. 数据类型值高亮 (Value Highlighting)
   ========================================================================== */
.node-value {
  user-select: text;
  word-break: break-all;
}

.type-string,
.val-string {
  color: #276f55; /* 沉稳森林墨绿 */
}

.type-number,
.val-number,
.val-bigint {
  color: #b86a24; /* 暖琥珀金 */
  font-weight: 500;
}

.type-boolean,
.val-boolean {
  color: #b83a3a; /* 赭红 */
  font-weight: 600;
}

.type-null,
.type-undefined,
.val-null,
.val-undefined {
  color: var(--color-ink-light);
  font-style: italic;
}

/* ==========================================================================
   10. 长文本预览卡片 (Long Text Card)
   ========================================================================== */
.is-long-text-card {
  margin: 6px 0;
}

.long-text-card {
  background-color: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  margin-left: 18px;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
  cursor: pointer;
}

.long-text-card:hover {
  border-color: var(--color-border-focus);
}

.long-text-card:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 1px;
}

.long-text-header {
  height: 32px;
  padding: 0 10px;
  background-color: var(--bg-surface-alt);
  border-bottom: 1px solid var(--color-border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.card-header-left {
  display: flex;
  align-items: center;
  gap: 6px;
  overflow: hidden;
}

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

.pill-type {
  background-color: var(--bg-forest-light);
  color: var(--color-forest);
  border: 1px solid var(--color-forest-border);
  font-family: var(--font-mono);
  font-size: 10px;
}

.pill-muted {
  background-color: var(--bg-surface-tint);
  color: var(--color-ink-muted);
  border: 1px solid var(--color-border-subtle);
  font-family: var(--font-mono);
  font-size: 10px;
}

.btn-xs {
  height: 22px;
  padding: 0 8px;
  font-size: 11px;
  border-radius: var(--radius-sm);
}

.long-text-content {
  padding: 10px 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.6;
  color: var(--color-ink);
  background-color: #ffffff;
  white-space: pre-wrap;
  word-break: break-all;
  margin: 0;
  user-select: text;
}

.long-text-content.is-collapsed {
  max-height: 120px;
  overflow: hidden;
  position: relative;
  color: var(--color-ink-secondary);
}

/* ==========================================================================
   11. 搜索匹配高亮
   ========================================================================== */
.search-highlight {
  background-color: #fdf3d6 !important;
  outline: 1px solid #f2c97d !important;
  border-radius: 2px;
}

.search-highlight-active {
  background-color: #fce7a2 !important;
  outline: 2px solid #e09f19 !important;
  border-radius: 2px;
}

/* ==========================================================================
   12. 底部状态栏 (Footer 完整布局)
   ========================================================================== */
.app-footer {
  height: var(--footer-height);
  min-height: var(--footer-height);
  max-height: var(--footer-height);
  background-color: var(--bg-app);
  border-top: 1px solid var(--color-border);
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-shrink: 0;
  z-index: 10;
  font-size: 11px;
  color: var(--color-ink-muted);
}

.footer-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.stat-badge {
  font-family: var(--font-mono);
  color: var(--color-ink-secondary);
  font-weight: 500;
}

.footer-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.safe-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  color: var(--color-forest);
  font-weight: 500;
}

.safe-badge svg {
  color: var(--color-forest);
}

/* ==========================================================================
   13. 独立长文本阅读面板模态框 (Reader Modal)
   ========================================================================== */
body.modal-open {
  overflow: hidden !important;
}

.modal-backdrop {
  position: fixed;
  inset: 0;
  background-color: rgba(36, 41, 35, 0.45);
  backdrop-filter: blur(3px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 24px;
}

.modal-card {
  background-color: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  max-width: 960px;
  width: 90%;
  height: 85vh;
  animation: modalIn 0.15s ease-out;
}

@keyframes modalIn {
  from {
    opacity: 0;
    transform: scale(0.98) translateY(6px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

.modal-header {
  height: 48px;
  min-height: 48px;
  padding: 0 16px;
  background-color: var(--bg-surface-alt);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

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

.reader-tag {
  font-size: 11px;
  font-weight: 700;
  color: var(--color-forest);
  background-color: var(--bg-forest-light);
  border: 1px solid var(--color-forest-border);
  padding: 2px 7px;
  border-radius: var(--radius-sm);
  white-space: nowrap;
}

.reader-path {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-ink);
  background-color: var(--bg-surface-tint);
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 280px;
}

.reader-header-right {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.meta-pill {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--color-ink-muted);
  background-color: var(--bg-surface-tint);
  padding: 3px 8px;
  border-radius: var(--radius-full);
}

.btn-icon-close {
  width: 28px;
  height: 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--color-ink-muted);
  border-radius: var(--radius-sm);
  transition: all 0.15s ease;
  cursor: pointer;
}

.btn-icon-close:hover {
  background-color: var(--color-error-bg);
  color: var(--color-error);
}

.reader-content-wrap {
  flex: 1;
  min-height: 0;
  display: flex;
  background-color: #ffffff;
  overflow: hidden;
}

.reader-gutter {
  width: 50px;
  min-width: 50px;
  background-color: var(--bg-surface-alt);
  border-right: 1px solid var(--color-border-subtle);
  color: var(--color-ink-light);
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 22px;
  padding: 16px 8px 16px 0;
  text-align: right;
  user-select: none;
  overflow: hidden;
  white-space: pre;
}

.reader-text {
  flex: 1;
  height: 100%;
  padding: 16px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 22px;
  color: var(--color-ink);
  background-color: #ffffff;
  overflow: auto;
  white-space: pre-wrap;
  word-break: break-all;
  user-select: text;
}

.reader-footer {
  height: 32px;
  min-height: 32px;
  padding: 0 16px;
  background-color: var(--bg-surface-alt);
  border-top: 1px solid var(--color-border-subtle);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  font-size: 11px;
  color: var(--color-ink-muted);
}

.reader-esc-hint kbd {
  font-family: var(--font-mono);
  background-color: #ffffff;
  border: 1px solid var(--color-border);
  padding: 1px 4px;
  border-radius: var(--radius-sm);
}

/* ==========================================================================
   14. 轻量全局反馈 Toast
   ========================================================================== */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  gap: 8px;
  pointer-events: none;
}

.toast {
  pointer-events: auto;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  background-color: var(--color-ink);
  color: #ffffff;
  border-radius: var(--radius-md);
  font-size: 12px;
  font-weight: 500;
  box-shadow: var(--shadow-md);
  animation: toastSlide 0.15s ease-out;
  transition: opacity 0.25s ease, transform 0.25s ease;
}

@keyframes toastSlide {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.toast-success {
  background-color: var(--color-forest);
}

.toast-error {
  background-color: var(--color-error);
}

.toast-info {
  background-color: var(--color-ink);
}

.toast-fadeout {
  opacity: 0;
  transform: translateY(8px);
}

/* ==========================================================================
   15. 响应式与小屏适配 (<= 900px)
   ========================================================================== */
@media (max-width: 900px) {
  .app-header {
    padding: 0 16px;
  }

  .brand-subtitle,
  .brand-divider {
    display: none;
  }

  .hero-section {
    padding: 10px 16px 6px;
    flex-wrap: wrap;
    gap: 8px;
  }

  /* 显式呈现移动端切换 Tab */
  .mobile-view-tabs {
    display: inline-flex;
  }

  .main-workspace {
    flex-direction: column;
    padding: 6px 16px 10px;
    gap: 10px;
  }

  .panel-source,
  .panel-tree {
    width: 100% !important;
    min-width: 100% !important;
    flex: 1 1 auto;
  }

  /* 移动端根据 Tab active 状态单栏呈现，不堆叠 */
  .hero-section:has([data-tab="input"].active) + .main-workspace .panel-tree {
    display: none !important;
  }
  .hero-section:has([data-tab="tree"].active) + .main-workspace .panel-source {
    display: none !important;
  }

  .search-box-wrap {
    max-width: 180px;
  }

  .modal-card {
    width: 95%;
    height: 90vh;
  }
}

/* 桌面端宽度保证双栏稳定呈现，覆盖小屏切换残留的行内 display */
@media (min-width: 901px) {
  .panel-source,
  .panel-tree {
    display: flex !important;
  }
}