/* ===== 基础 ===== */
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; height: 100%; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif; font-size: 15px; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
html { overflow: hidden; }
body { overflow: hidden; display: flex; flex-direction: column; }

/* ===== 主题 ===== */
body.theme-dark {
  background: #181818; color: #e0e0e0;
  --bg-0: #181818; --bg-1: #1f1f1f; --bg-2: #282828; --bg-3: #333;
  --bg-hover: rgba(255,255,255,.06);
  --fg-0: #e0e0e0; --fg-1: #a0a0a0; --fg-2: #666;
  --accent: #4f8ff7; --accent-hover: #6ea1f8; --accent-bg: rgba(79,143,247,.12);
  --danger: #f04747; --warn: #f0a020; --ok: #3ba55c;
  --border: #2e2e2e; --border-subtle: #262626;
  --shadow-md: 0 4px 16px rgba(0,0,0,.4);
  --shadow-lg: 0 8px 32px rgba(0,0,0,.5);
  --radius-sm: 4px; --radius-md: 6px; --radius-lg: 10px;
}
body.theme-light {
  background: #fafafa; color: #1a1a1a;
  --bg-0: #ffffff; --bg-1: #f5f5f5; --bg-2: #ebebeb; --bg-3: #ddd;
  --bg-hover: rgba(0,0,0,.04);
  --fg-0: #1a1a1a; --fg-1: #555; --fg-2: #999;
  --accent: #2563eb; --accent-hover: #3b82f6; --accent-bg: rgba(37,99,235,.08);
  --danger: #dc2626; --warn: #d97706; --ok: #059669;
  --border: #e0e0e0; --border-subtle: #eee;
  --shadow-md: 0 4px 16px rgba(0,0,0,.1);
  --shadow-lg: 0 8px 32px rgba(0,0,0,.15);
  --radius-sm: 4px; --radius-md: 6px; --radius-lg: 10px;
}

/* ===== 全局控件基础 ===== */
button, input, select, textarea {
  background: var(--bg-2); color: var(--fg-0); border: 1px solid var(--border);
  border-radius: var(--radius-sm); padding: 6px 12px; font-size: 14px;
  font-family: inherit; transition: background .15s, border-color .15s, color .15s;
}
button:hover:not(:disabled) { background: var(--bg-3); cursor: pointer; }
button:disabled { opacity: 0.45; cursor: not-allowed; }
input:focus, textarea:focus, select:focus { outline: none; border-color: var(--accent); }

.flat-btn {
  background: transparent; border: none; color: var(--fg-1);
  padding: 5px 10px; font-size: 13px; border-radius: var(--radius-sm);
  transition: background .12s, color .12s; letter-spacing: .01em;
}
.flat-btn:hover:not(:disabled) { background: var(--bg-hover); color: var(--fg-0); }
.flat-select {
  background: var(--bg-2); border: 1px solid var(--border); color: var(--fg-0);
  padding: 4px 8px; font-size: 13px; border-radius: var(--radius-sm); outline: none;
  cursor: pointer; min-width: 80px; transition: background .12s, color .12s;
}
.flat-select:hover { background: var(--bg-3); color: var(--fg-0); }
.flat-select option { background: var(--bg-1); color: var(--fg-0); }
.flat-select-wrap { position: relative; display: inline-flex; align-items: center; }
.flat-select-wrap::after { content: '▾'; position: absolute; right: 4px; font-size: 10px; color: var(--fg-2); pointer-events: none; }

.primary-btn {
  background: var(--accent); color: #fff; border: none;
  padding: 6px 16px; border-radius: var(--radius-sm); font-weight: 500;
}
.primary-btn:hover:not(:disabled) { background: var(--accent-hover); }

/* ===== 登录页 ===== */
.login-wrap { display: flex; align-items: center; justify-content: center; height: 100%; }
.login-card { background: var(--bg-1); padding: 40px; border-radius: 8px; min-width: 320px;
              box-shadow: 0 10px 40px rgba(0,0,0,.4); }
.login-card h1 { margin: 0 0 24px 0; }
.login-card label { display: block; margin-bottom: 14px; color: var(--fg-1); }
.login-card input { width: 100%; padding: 8px; margin-top: 4px; }
.login-card button { width: 100%; padding: 10px; background: var(--accent); color: #fff; border: 0; }
.err { color: var(--danger); margin-top: 10px; min-height: 18px; }

/* ===== 顶栏 ===== */
#topbar {
  height: 48px; flex-shrink: 0;
  background: var(--bg-1); border-bottom: 1px solid var(--border);
  display: flex; align-items: center; padding: 0 14px; gap: 10px;
  font-size: 14px;
}
#topbar .logo { font-weight: 700; font-size: 15px; flex-shrink: 0; color: var(--fg-0); letter-spacing: -.02em; }
.top-spacer { flex: 1; }
#topbar .top-right { display: flex; align-items: center; gap: 3px; flex-shrink: 0; }
/* TEMP: 暂时隐藏额度/费用统计（与 server/main.py 的 _ENFORCE_QUOTA 配合）。
   恢复时删除下一行即可，其它样式保持原样。 */
#quota-box, #cost-box { display: none !important; }
.global-search { display: none !important; }
.quota-box { font-size: 12px; color: var(--fg-2); padding: 4px 10px; border-radius: 10px;
             background: var(--bg-2); white-space: nowrap; font-variant-numeric: tabular-nums; }
.quota-box.warn { color: var(--warn); background: rgba(240,160,32,.1); }
.quota-box.danger { color: var(--danger); font-weight: 600; background: rgba(240,71,71,.1); }
.cost-box { font-size: 12px; color: var(--fg-2); padding: 4px 10px; white-space: nowrap;
            font-variant-numeric: tabular-nums; cursor: pointer; border-radius: 10px; }
.cost-box:hover { color: var(--fg-0); background: var(--bg-hover); }
.cost-box.warn { color: var(--warn); }
.cost-box.danger { color: var(--danger); font-weight: 600; }
.status-light {
  width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0;
  background: var(--ok); cursor: help; transition: background .3s;
  margin-left: 10px;
}
.status-light.warn { background: var(--warn); }
.status-light.danger { background: var(--danger); }
.topbar-sep { width: 1px; height: 18px; background: var(--border); flex-shrink: 0; }

/* ===== Recent projects bar (top center) ===== */
.recent-projects-bar {
  display: flex; align-items: center; gap: 3px;
  overflow-x: auto; scrollbar-width: none;
  flex-shrink: 0;
}
.recent-projects-bar::-webkit-scrollbar { display: none; }
.rp-tab {
  display: flex; align-items: center; gap: 3px;
  padding: 4px 6px 4px 10px; border-radius: var(--radius-sm);
  font-size: 13px; color: var(--fg-2); cursor: default;
  white-space: nowrap; flex-shrink: 0;
  border: 1px solid transparent; transition: all .12s;
}
.rp-tab:hover { background: var(--bg-hover); color: var(--fg-1); }
.rp-tab.active {
  background: var(--accent-bg); color: var(--accent);
  border-color: var(--accent); font-weight: 500;
}
.rp-tab-label { cursor: pointer; }
.rp-tab-close {
  font-size: 13px; line-height: 1; color: var(--fg-2); cursor: pointer;
  padding: 1px 3px; border-radius: 3px; opacity: 0; flex-shrink: 0; transition: opacity .12s;
}
.rp-tab:hover .rp-tab-close { opacity: 0.5; }
.rp-tab-close:hover { opacity: 1 !important; color: var(--fg-0); background: var(--bg-3); }
.rp-tab[draggable="true"] { cursor: grab; position: relative; }
.rp-tab[draggable="true"]:active { cursor: grabbing; }
.rp-tab.rp-dragging { opacity: 0.4; }
.rp-tab.rp-drop-before::before,
.rp-tab.rp-drop-after::after {
  content: ''; position: absolute; top: 2px; bottom: 2px;
  width: 2px; background: var(--accent); border-radius: 1px;
  pointer-events: none;
}
.rp-tab.rp-drop-before::before { left: -2px; }
.rp-tab.rp-drop-after::after   { right: -2px; }
.rp-busy-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--accent); flex-shrink: 0;
  animation: rp-pulse 1.4s ease-in-out infinite;
}
@keyframes rp-pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: .4; transform: scale(.7); }
}

/* ===== Project switcher ===== */
.project-switcher { flex-shrink: 0; position: relative; }
.project-btn {
  display: inline-flex; align-items: center; gap: 4px;
  font-size: 13px; font-weight: 500; padding: 5px 12px;
  max-width: 200px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  transition: all .12s;
}
.project-btn:hover { background: var(--bg-hover); border-color: var(--fg-2); }
.project-chevron { font-size: 10px; color: var(--fg-2); margin-left: 2px; }
.project-menu {
  position: fixed; z-index: 90000;
  background: var(--bg-1); border: 1px solid var(--border); border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg); min-width: 220px; max-width: 360px;
  padding: 4px 0; max-height: 70vh; overflow-y: auto;
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
}
.project-menu-item {
  padding: 8px 14px; font-size: 13px; cursor: pointer;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  transition: background .1s;
}
.project-menu-item:hover { background: var(--accent); color: #fff; border-radius: 2px; margin: 0 3px; padding-left: 11px; padding-right: 11px; }
.project-menu-row {
  display: flex; align-items: center; padding: 0;
  margin: 0 3px; border-radius: 3px;
}
.project-menu-row:hover { background: var(--accent); color: #fff; }
.project-menu-row-label {
  flex: 1; padding: 8px 12px; cursor: pointer; font-size: 13px;
  overflow: hidden; text-overflow: ellipsis;
}
.project-menu-row-del {
  padding: 4px 10px; cursor: pointer; font-size: 14px;
  color: inherit; opacity: 0; flex-shrink: 0;
}
.project-menu-row:hover .project-menu-row-del { opacity: 0.7; }
.project-menu-row-del:hover { opacity: 1 !important; color: var(--danger) !important; }
.project-menu-row.hidden-workspace .project-menu-row-label { opacity: 0.5; font-style: italic; }
.project-menu-row-pin { padding: 4px 6px; cursor: pointer; font-size: 13px; opacity: 0.6; flex-shrink: 0; }
.project-menu-row-pin:hover { opacity: 1; }
.project-menu-sep { height: 1px; background: var(--border); margin: 4px 6px; }
.project-menu-label {
  padding: 6px 14px 3px; font-size: 11px; color: var(--fg-2);
  text-transform: uppercase; letter-spacing: .5px; font-weight: 600;
}
.project-path-input {
  background: var(--bg-2) !important; color: var(--fg-0) !important;
  border: 1px solid var(--border) !important; border-radius: var(--radius-sm);
  font-size: 13px; font-family: inherit;
}
.project-dir-list {
  max-height: 220px; overflow-y: auto;
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  background: var(--bg-2);
}
.project-dir-item {
  padding: 8px 12px; font-size: 12px; cursor: pointer;
  border-bottom: 1px solid var(--border-subtle);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis; transition: background .1s;
}
.project-dir-item:last-child { border-bottom: none; }
.project-dir-item:hover { background: var(--bg-hover); }
.project-dir-item.selected { background: var(--accent); color: #fff; }

/* ===== 三栏 ===== */
:root {
  /* 三列宽度变量，由 js/col_resize.js 在启动时按窗口宽度初始化、拖拽时实时更新、写入 localStorage */
  --col-l: 20vw;
  --col-c: 45vw;
  --col-r: 35vw;
  --col-rs: 5px; /* 分隔条宽度 */
}
#main {
  display: grid;
  /* 右列下限为 0：避免聊天里出现的宽 diff / 长 URL / 代码块把列撑出视口
     被裁掉看不见。按钮行的横向兜底由 #chat-input-area 的 overflow-x: auto
     + .chat-bottom 的 max-width: 100% 处理。 */
  grid-template-columns: var(--col-l) var(--col-rs) var(--col-c) var(--col-rs) minmax(0, var(--col-r));
  /* Pin the single row to fill the container so grid items don't shrink
     to content height. Without this, hiding the terminal collapsed
     #center-col because its only remaining flex child (#center-top) has
     flex-basis: 0, creating a circular sizing dependency with the
     auto-sized implicit row. */
  grid-template-rows: minmax(0, 1fr);
  flex: 1; min-height: 0; overflow: hidden;
}

/* 列分隔条 */
.col-resizer {
  background: var(--border);
  cursor: col-resize;
  user-select: none;
  position: relative;
  transition: background 0.15s;
}
.col-resizer:hover,
.col-resizer.dragging { background: var(--accent, #3b82f6); }
/* 加宽热区方便拖拽（视觉仍是 5px，热区扩到 ±3px） */
.col-resizer::before {
  content: '';
  position: absolute;
  top: 0; bottom: 0;
  left: -3px; right: -3px;
  z-index: 10;
}
/* 拖拽中：禁止整页文字选中、强制 col-resize 光标。
   同时禁用 iframe/object/embed 的鼠标事件，避免鼠标释放落在 PDF 预览/iframe 内时
   页面收不到 pointerup，导致分隔条“松手后还继续跟着拖”。 */
body.col-resizing { cursor: col-resize !important; user-select: none !important; }
body.col-resizing * { user-select: none !important; }
body.col-resizing iframe,
body.col-resizing object,
body.col-resizing embed { pointer-events: none !important; }

/* ===== 中间栏（预览）字号 =====
   Monaco 编辑器本身通过 JS 配置 fontSize 控制，不受 CSS 影响。
   文件预览字号由 #preview-font-size 下拉框写入 --preview-font-size，并持久化。 */
.preview-host { font-size: var(--preview-font-size, 18px); }
.preview-host button,
.preview-host .preview-info,
.preview-host .filter-input,
.preview-host .preview-topbar { font-size: 12px; }
#left-col, #center-col { display: flex; flex-direction: column; overflow: hidden; min-width: 0; min-height: 0; }
#right-col {
  display: flex; flex-direction: column; overflow: hidden;
  /* 显式允许收缩到 0：若给 min-content 会让宽 diff / 宽代码块把列撑出
     viewport 范围，导致右侧按钮行/卡片被裁掉。 */
  min-width: 0; min-height: 0;
}
/* 明确固定各栏在 grid 中的位置，避免自动布局/缓存导致栏位错位 */
#left-col { grid-column: 1; grid-row: 1; border-right: 1px solid var(--border); }
#resizer-lc { grid-column: 2; grid-row: 1; }
#center-col { grid-column: 3; grid-row: 1; border-right: 1px solid var(--border); background: var(--bg-0); display: flex; flex-direction: column; }

/* center-col vertical split: editor (top) + terminal (bottom) */
#center-top { flex: var(--row-editor, 1); min-height: 100px; overflow: hidden; display: flex; flex-direction: column; }
#center-bottom { flex: var(--row-terminal, 0.4); min-height: 80px; overflow: hidden; display: flex; flex-direction: column; border-top: 1px solid var(--border); }
#center-bottom.hidden { display: none; }
#terminal-host { flex: 1; min-height: 0; overflow: hidden; background: var(--term-bg, #1e1e1e); }
#terminal-host .xterm-viewport { scrollbar-width: none; }
#terminal-host .xterm-viewport::-webkit-scrollbar { display: none; }

/* Terminal settings popup — position: fixed so it escapes #right-col's
   overflow: hidden. JS positions it relative to the gear button. */
.term-settings-popup {
  position: fixed; z-index: 10000;
  background: var(--bg-1); border: 1px solid var(--border);
  border-radius: 6px; padding: 10px 14px; min-width: 180px;
  box-shadow: var(--shadow-lg);
  display: flex; flex-direction: column; gap: 8px;
}
.term-settings-popup.hidden { display: none; }
.term-settings-popup label {
  display: flex; align-items: center; justify-content: space-between;
  font-size: 12px; color: var(--fg-1); gap: 8px;
}
.term-settings-popup input[type="number"] {
  width: 50px; padding: 2px 4px; border: 1px solid var(--border);
  border-radius: 4px; background: var(--bg-0); color: var(--fg-0);
  font-size: 12px; text-align: center;
}
.term-settings-popup select {
  padding: 2px 4px; border: 1px solid var(--border);
  border-radius: 4px; background: var(--bg-0); color: var(--fg-0); font-size: 12px;
}

/* row (horizontal) resizer between editor and terminal */
.row-resizer {
  height: 5px; cursor: row-resize; background: var(--border);
  flex-shrink: 0; user-select: none; position: relative; transition: background 0.15s;
}
.row-resizer:hover, .row-resizer.dragging { background: var(--accent, #3b82f6); }
.row-resizer::before {
  content: ''; position: absolute; left: 0; right: 0; top: -3px; bottom: -3px; z-index: 10;
}
.row-resizer.hidden { display: none; }
body.row-resizing { cursor: row-resize !important; user-select: none !important; }
body.row-resizing * { user-select: none !important; }
body.row-resizing iframe, body.row-resizing object, body.row-resizing embed { pointer-events: none !important; }

/* file tree / terminal toggle buttons */
.icon-btn {
  width: 28px; height: 28px; padding: 0; border: none; border-radius: 4px;
  background: transparent; color: var(--fg-2); cursor: pointer;
  display: inline-flex; align-items: center; justify-content: center;
  transition: background 0.15s, color 0.15s; flex-shrink: 0;
}
.icon-btn:hover { background: var(--bg-2); color: var(--fg-0); }
.icon-btn.active { color: var(--accent, #3b82f6); }

/* left-col hidden state — also collapse its grid column AND donate the
   freed pixels to the center column so the layout truly reflows instead
   of leaving a blank gap. */
#left-col.hidden { display: none !important; }
#resizer-lc.hidden { display: none !important; }
body.filetree-hidden #main {
  grid-template-columns:
    0
    0
    calc(var(--col-c) + var(--col-l) + var(--col-rs))
    var(--col-rs)
    minmax(0, var(--col-r));
}
#resizer-cr { grid-column: 4; grid-row: 1; }
#right-col { grid-column: 5; grid-row: 1; }

.pane-header { display: flex; justify-content: space-between; align-items: center;
               padding: 6px 12px; background: var(--bg-1);
               font-size: 12px; text-transform: uppercase; color: var(--fg-2);
               font-weight: 600; letter-spacing: 0.05em; flex-shrink: 0;
               border-bottom: 1px solid var(--border); }
.pane-header-actions { display: flex; align-items: center; gap: 4px; letter-spacing: 0; text-transform: none; }
.filetree-action-btn { padding: 3px 6px; font-size: 11px; line-height: 1.3; }
.filetree-action-btn.active { color: var(--accent); background: var(--accent-bg); }

/* ===== 文件树 ===== */
.file-tree { overflow: auto; flex: 1; padding: 2px 0; font-size: 14px; line-height: 1.5; }
.tree-wrapper { display: block; }
.tree-node {
  padding: 4px 8px 4px 0; cursor: pointer; position: relative;
  user-select: none; display: flex; align-items: center; gap: 6px;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  padding-left: calc(8px + var(--depth, 0) * 16px);
  border-left: 2px solid transparent;
}
.tree-node:hover { background: var(--bg-2); }
.tree-node.active {
  background: var(--bg-3); border-left-color: var(--accent);
}
.tree-node.selected {
  background: var(--accent-bg); border-left-color: var(--accent);
}
.tree-node.select-mode { cursor: default; }
.tree-select-check {
  width: 13px; height: 13px; margin: 0 1px 0 0; padding: 0;
  flex-shrink: 0; accent-color: var(--accent);
}
.tree-node .tree-icon {
  font-size: 11px; color: var(--fg-2); flex-shrink: 0;
  width: 12px; text-align: center; transition: transform 0.1s;
}
.tree-node .tree-name {
  flex: 1; overflow: hidden; text-overflow: ellipsis;
  font-size: 14px;
}
.tree-node .tree-ext {
  font-size: 11px; color: var(--fg-2); opacity: 0.55;
  padding-right: 4px; flex-shrink: 0;
}
.tree-children {}
.tree-node.dragging { opacity: 0.4; }
.tree-node.drop-target {
  background: var(--accent) !important; color: #fff !important;
  border-radius: 3px;
}
.tree-node.drop-target .tree-name,
.tree-node.drop-target .tree-icon,
.tree-node.drop-target .tree-ext { color: #fff !important; }

/* ── 视觉增强：文件夹 vs 不同文件类型（不用图标）── */
/* 文件夹：始终蓝色粗体 */
.tree-node.dir .tree-name { font-weight: 700; color: var(--accent); }
.tree-node.dir .tree-icon { color: var(--accent); }
.tree-node.dir.open .tree-name { color: var(--accent); }

/* 文件：普通 */
.tree-node.file .tree-name { font-weight: 400; color: var(--fg-0); }

/* 按类型上色（dark 主题）*/
body.theme-dark .tree-node.kind-script   .tree-name { color: #f7df1e; }  /* JS/TS 黄 */
body.theme-dark .tree-node.kind-code     .tree-name { color: #4ec9b0; }  /* 代码 青 */
body.theme-dark .tree-node.kind-markup   .tree-name { color: #e07b8f; }  /* HTML 粉 */
body.theme-dark .tree-node.kind-style    .tree-name { color: #569cd6; }  /* CSS 蓝 */
body.theme-dark .tree-node.kind-config   .tree-name { color: #dcdcaa; }  /* JSON/YAML 米黄 */
body.theme-dark .tree-node.kind-doc      .tree-name { color: #d4d4d4; }  /* 文档 */
body.theme-dark .tree-node.kind-data     .tree-name { color: #9cdcfe; }  /* CSV/XLSX 浅蓝 */
body.theme-dark .tree-node.kind-image    .tree-name { color: #c586c0; font-style: italic; }
body.theme-dark .tree-node.kind-media    .tree-name { color: #ce9178; font-style: italic; }
body.theme-dark .tree-node.kind-archive  .tree-name { color: #b5cea8; }
body.theme-dark .tree-node.kind-office   .tree-name { color: #d7ba7d; }
body.theme-dark .tree-node.kind-shell    .tree-name { color: #4ec9b0; }
body.theme-dark .tree-node.kind-db       .tree-name { color: #b38add; }
body.theme-dark .tree-node.kind-plain    .tree-name { color: var(--fg-1); }

body.theme-light .tree-node.kind-script  .tree-name { color: #b58900; }
body.theme-light .tree-node.kind-code    .tree-name { color: #2aa198; }
body.theme-light .tree-node.kind-markup  .tree-name { color: #d33682; }
body.theme-light .tree-node.kind-style   .tree-name { color: #268bd2; }
body.theme-light .tree-node.kind-config  .tree-name { color: #859900; }
body.theme-light .tree-node.kind-doc     .tree-name { color: #073642; }
body.theme-light .tree-node.kind-data    .tree-name { color: #268bd2; }
body.theme-light .tree-node.kind-image   .tree-name { color: #6c71c4; font-style: italic; }
body.theme-light .tree-node.kind-media   .tree-name { color: #cb4b16; font-style: italic; }
body.theme-light .tree-node.kind-archive .tree-name { color: #859900; }
body.theme-light .tree-node.kind-office  .tree-name { color: #b58900; }
body.theme-light .tree-node.kind-shell   .tree-name { color: #2aa198; }
body.theme-light .tree-node.kind-db      .tree-name { color: #6c71c4; }
body.theme-light .tree-node.kind-plain   .tree-name { color: var(--fg-1); }

/* ===== 编辑器中栏 — 占满 ===== */
.tabs { display: flex; background: var(--bg-1); height: 34px; overflow-x: auto; flex-shrink: 0; }
.tab {
  padding: 7px 14px; cursor: pointer; display: flex; gap: 4px; align-items: center;
  border-right: 1px solid var(--border); white-space: nowrap; font-size: 13px;
  flex-shrink: 0;
}
.tab.active { background: var(--bg-0); border-bottom: 1px solid var(--bg-0); }
.tab .dirty { color: var(--warn); }
.tab .close { color: var(--fg-2); margin-left: 4px; font-size: 11px; }
.tab .close:hover { color: var(--danger); }

/* editor-host / preview-host fill the flex column */
.editor-host { flex: 1; overflow: hidden; min-height: 0; }
.preview-host { flex: 1; overflow: hidden; padding: 0; background: var(--bg-0); display: flex; flex-direction: column; }

/* ===== 文件预览 ===== */
.preview-empty, .preview-error, .preview-loading { padding: 40px; text-align: center; color: var(--fg-2); font-size: 13px; }
.preview-error { color: var(--danger); }
.preview-info { font-size: 12px; color: var(--fg-2); margin-bottom: 8px; }
.preview-toolbar {
  display: flex; align-items: center; gap: 8px;
  padding: 4px 8px; border-bottom: 1px solid var(--border);
  background: var(--bg-1); flex-shrink: 0;
}
.preview-toolbar-title {
  flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
  color: var(--fg-2); font-size: 12px;
}
.preview-refresh-btn { min-width: 28px; padding: 2px 8px; }
.preview-refresh-btn.loading { opacity: .7; }
.preview-content {
  flex: 1; min-height: 0; overflow: hidden;
  display: flex; flex-direction: column;
}

.preview-markdown { max-width: 900px; line-height: 1.7; flex: 1; overflow: auto; padding: 16px; font-size: inherit; }
.preview-markdown h1 { font-size: 1.6em; border-bottom: 1px solid var(--border); padding-bottom: 6px; }
.preview-markdown h2 { font-size: 1.35em; }
.preview-markdown h3 { font-size: 1.15em; }
.preview-markdown pre { background: var(--bg-2); padding: 10px; border-radius: 4px; overflow-x: auto; }
.preview-markdown code { background: var(--bg-2); padding: 1px 4px; border-radius: 3px; font-size: 0.9em; }
.preview-markdown pre code { background: transparent; padding: 0; }
.preview-markdown table { border-collapse: collapse; margin: 12px 0; font-size: inherit; }
.preview-markdown th, .preview-markdown td { border: 1px solid var(--border); padding: 6px 10px; }
.preview-markdown img { max-width: 100%; }

.preview-iframe { width: 100%; flex: 1; border: 0; background: white; border-radius: 4px; min-height: 0; }

.preview-table-wrap { display: flex; flex-direction: column; height: 100%; overflow: hidden; }
.preview-topbar { display: flex; gap: 10px; align-items: center; padding: 0 0 6px 0; flex-shrink: 0; }
.preview-topbar .preview-info { flex: 1; margin-bottom: 0; }
.preview-stats-btn { background: var(--bg-2); }
.preview-table-scroll { flex: 1; overflow: auto; border: 1px solid var(--border); border-radius: 4px; }
.preview-table { border-collapse: collapse; font-size: inherit; font-family: Menlo, Consolas, monospace; width: 100%; }
.preview-table th, .preview-table td {
  border: 1px solid var(--border); padding: 4px 10px;
  max-width: 400px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.preview-table th {
  background: var(--bg-2); position: sticky; top: 0; z-index: 1;
  font-weight: 600; text-align: left;
}
.preview-table tr.filter-row th { position: sticky; top: 30px; z-index: 1; background: var(--bg-1); padding: 2px 4px; }
.filter-input {
  width: 100%; padding: 2px 6px; font-size: 11px;
  background: var(--bg-0); color: var(--fg-0); border: 1px solid var(--border);
  border-radius: 3px;
}
.sortable-th {
  cursor: pointer; user-select: none; position: relative; padding-right: 20px !important;
}
.sortable-th:hover { background: var(--bg-3); }
/* 排序方向用小三角（CSS border 画的，不用字符）*/
.sortable-th.sorted-asc::after,
.sortable-th.sorted-desc::after {
  content: ''; position: absolute; right: 8px; top: 50%;
  width: 0; height: 0;
  border-left: 4px solid transparent; border-right: 4px solid transparent;
}
.sortable-th.sorted-asc::after {
  border-bottom: 5px solid var(--fg-1); transform: translateY(-60%);
}
.sortable-th.sorted-desc::after {
  border-top: 5px solid var(--fg-1); transform: translateY(-40%);
}
.preview-table tr:nth-child(even) td { background: var(--bg-1); }
.preview-table td.num { text-align: right; font-variant-numeric: tabular-nums; }

.stats-modal {
  position: fixed; inset: 0; background: rgba(0,0,0,.5);
  display: flex; align-items: center; justify-content: center; z-index: 500;
}
.stats-card {
  background: var(--bg-1); border: 1px solid var(--border); border-radius: 8px;
  padding: 18px; max-width: 90vw; max-height: 80vh; overflow: auto;
}
.stats-card h3 { margin-top: 0; }

.preview-xlsx { display: flex; flex-direction: column; height: 100%; overflow: hidden; }
.sheet-tabs { display: flex; gap: 2px; margin-bottom: 6px; border-bottom: 1px solid var(--border); padding-bottom: 2px; flex-wrap: wrap; flex-shrink: 0; }
.sheet-tab { background: transparent; border: 1px solid var(--border); border-bottom: none; padding: 4px 12px; font-size: 12px; border-radius: 4px 4px 0 0; cursor: pointer; color: var(--fg-1); }
.sheet-tab:hover { background: var(--bg-2); color: var(--fg-0); }
.sheet-tab.active { background: var(--bg-0); border-bottom: 1px solid var(--bg-0); margin-bottom: -1px; font-weight: 600; color: var(--fg-0); }
.sheet-body { flex: 1; overflow: hidden; display: flex; flex-direction: column; }

.tab-preview .tab-title::before { content: '👁 '; opacity: 0.6; }
.tab.tab-preview { font-style: italic; }

.preview-image { display: flex; flex-direction: column; align-items: center; padding: 20px; }
.preview-image img { max-width: 100%; max-height: calc(100vh - 180px); border: 1px solid var(--border); border-radius: 4px; background:
repeating-conic-gradient(#ccc 0 25%, #fff 0 50%) 50% / 20px 20px; }
body.theme-dark .preview-image img { background: repeating-conic-gradient(#3e3e42 0 25%, #252526 0 50%) 50% / 20px 20px; }
.preview-image svg { max-width: 100%; max-height: calc(100vh - 180px); }
.preview-image .preview-info { margin-top: 10px; }
.welcome-host {
  flex: 1; overflow: auto; padding: 34px 38px; color: var(--fg-0);
  max-width: 980px; margin: 0 auto; width: 100%; box-sizing: border-box;
}
.welcome-hero {
  padding: 24px 26px; border: 1px solid var(--border);
  border-radius: 16px; background: linear-gradient(135deg, var(--bg-1), var(--bg-2));
  box-shadow: 0 12px 28px rgba(0,0,0,.12);
}
.welcome-kicker {
  color: var(--accent); font-size: 12px; font-weight: 700;
  letter-spacing: .08em; text-transform: uppercase; margin-bottom: 8px;
}
.welcome-hero h2 { margin: 0 0 10px; font-size: 24px; line-height: 1.25; }
.welcome-hero p { margin: 0; color: var(--fg-2); font-size: 14px; line-height: 1.7; max-width: 720px; }
.welcome-grid {
  display: grid; grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px; margin-top: 18px;
}
.welcome-card {
  border: 1px solid var(--border); border-radius: 14px; background: var(--bg-1);
  padding: 16px 18px;
}
.welcome-card h3, .welcome-steps h3 { margin: 0 0 8px; font-size: 15px; }
.welcome-card p { margin: 0; color: var(--fg-2); font-size: 13px; line-height: 1.65; }
.welcome-steps {
  margin-top: 18px; border: 1px solid var(--border); border-radius: 14px;
  background: var(--bg-1); padding: 18px;
}
.welcome-steps ol {
  list-style: none; padding: 0; margin: 12px 0 0;
  display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px 18px;
}
.welcome-steps li { display: flex; align-items: center; gap: 10px; min-width: 0; }
.welcome-steps li span {
  width: 24px; height: 24px; border-radius: 50%; flex: 0 0 auto;
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--accent); color: #fff; font-size: 12px; font-weight: 700;
}
.welcome-steps li p { margin: 0; color: var(--fg-1); font-size: 13px; line-height: 1.5; }
@media (max-width: 760px) {
  .welcome-grid, .welcome-steps ol { grid-template-columns: 1fr; }
  .welcome-host { padding: 22px 18px; }
}
.hidden { display: none !important; }

.statusbar { height: 30px; background: var(--bg-1); display: flex; align-items: center; flex-shrink: 0;
             gap: 12px; padding: 0 10px; font-size: 12px; color: var(--fg-2);
             border-bottom: 1px solid var(--border); }
.statusbar button { font-size: 11px; padding: 2px 8px; }
.statusbar .flat-select { font-size: 11px; padding: 2px 20px 2px 6px; min-width: 72px; background: var(--bg-2); }

/* ===== 会话标签栏（右栏顶部）===== */
#session-tabs-bar {
  display: flex; align-items: stretch; flex-shrink: 0;
  background: var(--bg-1); border-bottom: 1px solid var(--border);
  min-height: 34px; overflow: hidden;
}
#session-tabs {
  display: flex; flex: 1; align-items: stretch; overflow-x: auto;
  scrollbar-width: none;
}
#session-tabs::-webkit-scrollbar { display: none; }
.session-tab {
  padding: 0 12px; cursor: pointer; display: flex; align-items: center; gap: 5px;
  border-right: 1px solid var(--border-subtle); white-space: nowrap; font-size: 13px;
  color: var(--fg-1); flex-shrink: 0; width: 130px;
  transition: all .12s; position: relative;
}
.session-tab:hover { background: var(--bg-hover); color: var(--fg-0); }
.session-tab.active { color: var(--fg-0); font-weight: 500; }
.session-tab.active::after {
  content: ''; position: absolute; bottom: 0; left: 4px; right: 4px;
  height: 2px; background: var(--accent); border-radius: 1px;
}
.session-tab .pin { font-size: 10px; }
.session-tab .tab-title { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; flex: 1; }
.session-tab .tab-close {
  font-size: 14px; line-height: 1; color: var(--fg-2); cursor: pointer;
  padding: 1px 3px; border-radius: 3px; opacity: 0; flex-shrink: 0; transition: opacity .12s;
}
.session-tab:hover .tab-close { opacity: 0.5; }
.session-tab .tab-close:hover { opacity: 1; background: var(--bg-3); color: var(--fg-0); }
.session-tabs-actions { display: flex; align-items: center; padding: 0 4px; gap: 2px; flex-shrink: 0; }
.session-tabs-actions .icon-btn { padding: 4px 5px; line-height: 0; }

/* ===== 对话区 =====
   chat-list / msg / bubble 三层都强制 min-width: 0 + max-width: 100%，
   保证“父容器决定宽度，子内容自己处理溢出”：避免一段宽 diff / 长 URL
   把整条消息撑出右栏边界，造成右侧内容被裁掉看不见。 */
.chat-list { flex: 1; min-width: 0; overflow-y: auto; padding: 12px 20px; background: var(--bg-0); }
.msg { margin-bottom: 12px; position: relative; display: flex; flex-direction: column; gap: 2px;
       min-width: 0; max-width: 100%; }
.msg .role-label { display: none; }
.msg.hidden-msg { display: none; }
.msg .ops { display: none !important; }
.msg .aborted { color: var(--warn); font-size: 12px; margin-top: 4px; }

/* 内嵌的 Copy 按钮（仅 assistant） */
.assistant-footer {
  margin-top: 4px; display: flex; justify-content: flex-end;
  opacity: 0; transition: opacity .15s;
}
.msg:hover .assistant-footer { opacity: 1; }
.assistant-footer .copy-btn {
  display: flex; align-items: center; justify-content: center;
  width: 22px; height: 22px; padding: 0;
  background: transparent; border: 1px solid transparent;
  color: var(--fg-2); border-radius: var(--radius-sm); cursor: pointer;
  transition: color .12s, background .12s, border-color .12s;
}
.assistant-footer .copy-btn:hover { color: var(--fg-0); background: var(--bg-2); border-color: var(--border); }
.assistant-footer .copy-btn.copy-ok { color: var(--ok); }

/* Cost info line */
.cost-info {
  font-size: 11px; color: var(--fg-2); margin-top: 4px;
  padding: 2px 6px; opacity: 0.7;
  display: flex; align-items: center; flex-wrap: wrap; gap: 0;
}
.cost-info:hover { opacity: 1; }
.ctx-usage { display: inline-flex; align-items: center; gap: 4px; margin-left: 8px; }
.ctx-bar {
  display: inline-block; width: 48px; height: 6px;
  background: var(--bg-3, #333); border-radius: 3px; overflow: hidden;
  vertical-align: middle; position: relative;
}
.ctx-bar::after {
  content: attr(data-tip);
  position: absolute;
  right: 0; bottom: calc(100% + 8px);
  z-index: 300;
  min-width: 220px; max-width: min(420px, calc(100vw - 24px));
  padding: 8px 10px; border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--bg-1); color: var(--fg-0);
  box-shadow: 0 8px 24px rgba(0,0,0,.35);
  font-size: 11px; line-height: 1.45; white-space: pre-wrap;
  text-align: left; pointer-events: none;
  opacity: 0; transform: translateY(4px);
  transition: opacity .12s ease, transform .12s ease;
}
.ctx-bar::before {
  content: '';
  position: absolute; right: 10px; bottom: calc(100% + 3px);
  z-index: 301;
  border: 5px solid transparent;
  border-top-color: var(--border);
  pointer-events: none;
  opacity: 0;
  transition: opacity .12s ease;
}
.ctx-bar:hover { overflow: visible; }
.ctx-bar:hover::after,
.ctx-bar:hover::before { opacity: 1; transform: translateY(0); }
.ctx-fill {
  display: block; height: 100%; border-radius: 3px;
  background: var(--accent, #3b82f6); transition: width .3s;
}
.ctx-fill.ctx-warn { background: #f59e0b; }
.ctx-fill.ctx-danger { background: #ef4444; }
.ctx-label { font-size: 10px; color: var(--fg-2); }

/* Recreate confirm overlay */
.recreate-confirm-overlay {
  position: fixed; inset: 0; z-index: 9999;
  background: rgba(0,0,0,0.5); display: flex;
  align-items: center; justify-content: center;
}
.recreate-confirm-box {
  background: var(--bg-1); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 20px 24px;
  max-width: 420px; width: 90%;
  box-shadow: 0 8px 32px rgba(0,0,0,0.3);
}
.rc-title { font-size: 15px; font-weight: 600; margin-bottom: 8px; }
.rc-reason { font-size: 13px; color: var(--fg-1); margin-bottom: 8px; word-break: break-all; }
.rc-warn { font-size: 12px; color: var(--warn, #e6a700); margin-bottom: 16px; }
.rc-actions { display: flex; gap: 10px; justify-content: flex-end; }
.rc-btn {
  padding: 6px 16px; border-radius: var(--radius-sm);
  border: 1px solid var(--border); cursor: pointer;
  font-size: 13px; transition: background .12s;
}
.rc-cancel { background: var(--bg-2); color: var(--fg-1); }
.rc-cancel:hover { background: var(--bg-3); }
.rc-confirm { background: var(--danger, #d44); color: #fff; border-color: transparent; }
.rc-confirm:hover { opacity: 0.9; }

/* User bubble copy button — top-right corner, visible on hover */
.msg.user .bubble { position: relative; }
.user-copy-btn {
  position: absolute; top: 4px; right: 4px;
  display: flex; align-items: center; justify-content: center;
  width: 20px; height: 20px; padding: 0;
  background: transparent; border: 1px solid transparent;
  color: var(--fg-2); border-radius: var(--radius-sm); cursor: pointer;
  opacity: 0; transition: opacity .15s, color .12s, background .12s, border-color .12s;
}
.msg.user:hover .user-copy-btn { opacity: 1; }
.user-copy-btn:hover { color: var(--fg-0); background: var(--bg-hover); border-color: var(--border); }
.user-copy-btn.copy-ok { color: var(--ok); opacity: 1; }

/* 思考过程块 — 内联折叠，与正文无缝衔接 */
.thinking-block {
  display: block; margin: 2px 0 6px;
  /* 无边框、无背景 box，只用左边一条细线暗示层次 */
}
.thinking-summary {
  display: inline-flex; align-items: baseline; gap: 4px;
  cursor: pointer; user-select: none; list-style: none;
  color: var(--fg-2); font-size: 12px; font-style: italic;
  padding: 1px 0; transition: color .12s;
}
.thinking-summary::-webkit-details-marker { display: none; }
.thinking-summary::marker { display: none; }
/* 小三角收展指示 */
.thinking-summary::before {
  content: '▶'; font-size: 9px; font-style: normal;
  display: inline-block; transition: transform .15s;
  color: var(--fg-2); margin-right: 2px;
}
.thinking-block[open] > .thinking-summary::before { transform: rotate(90deg); }
.thinking-summary:hover { color: var(--fg-1); }
.thinking-block[open] > .thinking-summary { color: var(--fg-1); }
.thinking-body {
  margin-top: 4px; padding-left: 14px;
  border-left: 2px solid var(--border-subtle);
  font-size: 11px; line-height: 1.55; color: var(--fg-2);
  white-space: pre-wrap; word-wrap: break-word;
  max-height: 300px; overflow-y: auto;
}

/* 打字指示器：三个小圆点按顺序起伏，表明 assistant 正在思考/生成 */
.typing-indicator {
  display: inline-flex; gap: 4px; padding: 4px 0; align-items: center;
}
.typing-indicator span {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--fg-2);
  display: inline-block;
  animation: typing-bounce 1.2s infinite ease-in-out;
}
.typing-indicator span:nth-child(2) { animation-delay: 0.15s; }
.typing-indicator span:nth-child(3) { animation-delay: 0.3s; }
@keyframes typing-bounce {
  0%, 60%, 100% { opacity: 0.3; transform: translateY(0); }
  30% { opacity: 1; transform: translateY(-4px); background: var(--fg-0); }
}
.history-loading {
  display: flex; justify-content: center; align-items: center; gap: 5px;
  padding: 14px 0; min-height: 40px;
}
.hl-dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--fg-2); display: inline-block;
  animation: typing-bounce 1.2s infinite ease-in-out;
}
.hl-dot:nth-child(2) { animation-delay: 0.15s; }
.hl-dot:nth-child(3) { animation-delay: 0.3s; }
.msg .bubble { font-size: 12px; line-height: 1.4; word-wrap: break-word; color: var(--fg-0);
               min-width: 0; max-width: 100%; overflow-wrap: anywhere; }
.msg.user .bubble { background: var(--bg-1); border: 1px solid var(--border);
                    padding: 6px 10px; border-radius: 4px;
                    white-space: pre-wrap;
                    align-self: flex-end; max-width: 100%; width: fit-content; }
.msg.assistant .bubble { background: transparent; padding: 0; width: 100%; }

/* Markdown 元素样式（assistant 内） */
.msg.assistant .bubble > *:first-child { margin-top: 0; }
.msg.assistant .bubble > *:last-child { margin-bottom: 0; }
.msg.assistant .bubble p { margin: 3px 0; }
.msg.assistant .bubble h1, .msg.assistant .bubble h2,
.msg.assistant .bubble h3, .msg.assistant .bubble h4 {
  margin: 8px 0 3px; font-weight: 600; color: var(--fg-0); line-height: 1.25;
}
.msg.assistant .bubble h1 { font-size: 16px; }
.msg.assistant .bubble h2 { font-size: 14px; }
.msg.assistant .bubble h3 { font-size: 13px; }
.msg.assistant .bubble h4 { font-size: 12px; }
.msg.assistant .bubble ul, .msg.assistant .bubble ol { margin: 3px 0; padding-left: 22px; }
.msg.assistant .bubble li { margin: 1px 0; }
.msg.assistant .bubble blockquote {
  margin: 5px 0; padding: 3px 10px; border-left: 3px solid var(--border);
  color: var(--fg-1); background: var(--bg-1); border-radius: 0 3px 3px 0;
}
.msg.assistant .bubble a { color: var(--accent); text-decoration: none; }
.msg.assistant .bubble a:hover { text-decoration: underline; }
.msg.assistant .bubble hr { border: 0; border-top: 1px solid var(--border); margin: 6px 0; }
.msg.assistant .bubble table { border-collapse: collapse; margin: 6px 0; font-size: 11px; }
.msg.assistant .bubble th, .msg.assistant .bubble td {
  border: 1px solid var(--border); padding: 4px 10px;
}
.msg.assistant .bubble th { background: var(--bg-1); }
.msg.assistant .bubble code:not(pre code) {
  background: var(--bg-2); padding: 1px 5px; border-radius: 3px;
  font-family: Menlo, Consolas, "Fira Code", monospace; font-size: 11px; color: var(--fg-0);
}
.msg.assistant .bubble strong { color: var(--fg-0); font-weight: 600; }

/* 代码块 */
.msg pre { background: var(--bg-1); border: 1px solid var(--border); padding: 10px 12px;
           border-radius: 5px; overflow-x: auto; position: relative; margin: 8px 0; }
.msg pre code { font-family: Menlo, Consolas, "Fira Code", monospace; font-size: 11px;
                color: var(--fg-0); background: transparent; padding: 0; }
.msg pre .code-ops { position: absolute; top: 5px; right: 5px; display: none; gap: 3px; }
.msg pre:hover .code-ops { display: flex; }
.msg pre .code-ops button { font-size: 10px; padding: 2px 8px; background: var(--bg-2);
                            border: 1px solid var(--border); color: var(--fg-1); border-radius: 3px; }
.msg pre .code-ops button:hover { color: var(--fg-0); background: var(--bg-3); }

/* ====== Rich Tool Cards ====== */
.tool-card {
  display: block; margin: 4px 0 6px;
  border: 1px solid var(--border-subtle, var(--border));
  border-radius: 5px; overflow: hidden;
  background: var(--bg-1);
  font-size: 11px;
}
.tool-card .tc-header {
  display: flex; align-items: center; gap: 5px;
  cursor: pointer; user-select: none; list-style: none;
  padding: 4px 8px; min-height: 24px;
  font-family: Menlo, Consolas, "Fira Code", monospace;
  color: var(--fg-2); transition: color .12s;
}
.tool-card .tc-header::-webkit-details-marker { display: none; }
.tool-card .tc-header::marker { display: none; }
.tool-card .tc-header:hover { color: var(--fg-1); }
.tool-card .tc-header::before {
  content: '▶'; font-size: 7px; display: inline-block;
  transition: transform .15s; color: var(--fg-2); flex-shrink: 0;
}
.tool-card[open] > .tc-header::before { transform: rotate(90deg); }

/* Status icons */
.tc-status-icon { font-size: 11px; flex-shrink: 0; width: 14px; text-align: center; }
.tc-si-running { color: var(--accent, #60a5fa); animation: tc-spin 1s linear infinite; }
.tc-si-done { color: var(--ok, #22c55e); }
.tc-si-error { color: var(--danger, #ef4444); }
@keyframes tc-spin { to { transform: rotate(360deg); } }

.tc-kind-label {
  font-weight: 600; color: var(--fg-1); flex-shrink: 0; font-size: 11px;
}
.tc-summary {
  flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
  color: var(--fg-2); font-size: 11px;
}
.tc-shell-inline-cmd {
  font-family: var(--mono, monospace); color: var(--fg-1);
  background: var(--bg-2, rgba(128,128,128,.12)); border-radius: 3px;
  padding: 0 4px; font-size: 11px;
}
.tc-task-desc {
  color: var(--fg-2); font-size: 11px; font-style: italic;
}
.tc-badge {
  flex-shrink: 0; font-size: 10px; padding: 1px 5px;
  border-radius: 3px; background: var(--bg-2, var(--bg-0));
  color: var(--fg-2); white-space: nowrap;
}
.tc-badge:empty { display: none; }
.tc-badge-error { background: rgba(239,68,68,.15); color: var(--danger, #ef4444); }

/* Body */
.tc-body {
  padding: 6px 8px; border-top: 1px solid var(--border-subtle, var(--border));
  transition: opacity .2s;
  /* 兜底：宽 diff / 代码 / 文件名列表横向滚动而非撑爆卡片 */
  min-width: 0; max-width: 100%; overflow-x: auto;
}

/* File links */
.tc-file-link {
  color: var(--accent, #60a5fa); text-decoration: none; cursor: pointer;
  font-family: Menlo, Consolas, "Fira Code", monospace; font-size: 11px;
}
.tc-file-link:hover { text-decoration: underline; }

/* Code blocks inside tool cards */
.tc-code-block {
  margin: 4px 0; padding: 6px 8px; border-radius: 4px;
  background: var(--bg-0); border: 1px solid var(--border-subtle, var(--border));
  font-family: Menlo, Consolas, "Fira Code", monospace; font-size: 11px;
  line-height: 1.45; max-height: 400px; overflow-y: auto;
  white-space: pre-wrap; word-break: break-word;
}
.tc-code-block code { font-size: inherit; background: none; padding: 0; }

/* Edit diff coloring (fallback when diff2html not available) */
.tc-diff-del {
  border-left: 3px solid var(--danger, #ef4444);
  background: rgba(239,68,68,.06);
}
.tc-diff-add {
  border-left: 3px solid var(--ok, #22c55e);
  background: rgba(34,197,94,.06);
}
.tc-multi-edit-item { margin: 4px 0 8px; }

/* diff2html container overrides to fit our theme */
.tc-diff-container {
  margin: 4px 0;
  border-radius: 4px;
  overflow: hidden;
  --d2h-bg-color: var(--bg-0);
  --d2h-border-color: var(--border-subtle, var(--border));
  --d2h-line-border-color: var(--border-subtle, var(--border));
  --d2h-dim-color: #57606a;
  --d2h-ins-bg-color: #dafbe1;
  --d2h-ins-border-color: #aceebb;
  --d2h-ins-highlight-bg-color: #aceebb;
  --d2h-del-bg-color: #ffebe9;
  --d2h-del-border-color: #ffcecb;
  --d2h-del-highlight-bg-color: #ffcecb;
  --d2h-change-del-color: #ffebe9;
  --d2h-change-ins-color: #dafbe1;
  --d2h-info-bg-color: #f6f8fa;
  --d2h-info-border-color: #d0d7de;
}
.tc-diff-container .d2h-wrapper {
  font-size: 11px;
  color: #24292f;
  background: var(--bg-0);
}
.tc-diff-container .d2h-file-header { display: none; }
.tc-diff-container .d2h-file-diff,
.tc-diff-container .d2h-code-wrapper { overflow-x: auto; }
.tc-diff-container .d2h-diff-table {
  table-layout: auto;
  font-size: 11px;
  line-height: 1.3;
}
.tc-diff-container .d2h-code-linenumber {
  position: static;
  display: table-cell;
  width: 48px;
  min-width: 48px;
  max-width: 48px;
  padding: 0;
  line-height: 1.3;
  white-space: nowrap;
  direction: ltr;
  vertical-align: top;
  font-variant-numeric: tabular-nums;
}
.tc-diff-container .line-num1,
.tc-diff-container .line-num2 {
  float: none;
  display: inline-block;
  box-sizing: border-box;
  width: 24px;
  padding: 0 3px;
  overflow: hidden;
  text-overflow: clip;
  line-height: inherit;
  text-align: right;
  vertical-align: top;
}
.tc-diff-container .d2h-code-line {
  display: block;
  width: auto;
  padding: 0 6px;
}
.tc-diff-container .d2h-code-line-prefix {
  display: inline-block;
  width: 1.25ch;
  text-align: center;
}
.tc-diff-container .d2h-code-line-ctn {
  width: auto;
  font-family: Menlo, Consolas, "Fira Code", monospace;
  font-size: 11px;
}
body[data-theme="dark"] .tc-diff-container {
  --d2h-dim-color: #6e7681;
  --d2h-ins-bg-color: rgba(46,160,67,.15);
  --d2h-ins-border-color: rgba(46,160,67,.4);
  --d2h-ins-highlight-bg-color: rgba(46,160,67,.35);
  --d2h-del-bg-color: rgba(248,81,73,.1);
  --d2h-del-border-color: rgba(248,81,73,.4);
  --d2h-del-highlight-bg-color: rgba(248,81,73,.35);
  --d2h-change-del-color: rgba(248,81,73,.1);
  --d2h-change-ins-color: rgba(46,160,67,.15);
  --d2h-info-bg-color: rgba(56,139,253,.1);
  --d2h-info-border-color: rgba(56,139,253,.4);
}
body[data-theme="dark"] .tc-diff-container .d2h-wrapper { color: #c9d1d9; background: var(--bg-0); }
body[data-theme="dark"] .tc-diff-container .d2h-code-linenumber,
body[data-theme="dark"] .tc-diff-container .d2h-code-line { color: var(--fg-1); }
body[data-theme="dark"] .tc-diff-container .d2h-code-linenumber,
body[data-theme="dark"] .tc-diff-container .d2h-code-side-linenumber { background: var(--bg-1); color: var(--fg-2); }

/* Shell card */
.tc-shell-cmd {
  margin: 2px 0 4px; padding: 4px 8px; border-radius: 4px;
  background: #1a1a2e; color: #e0e0e0;
  font-family: Menlo, Consolas, "Fira Code", monospace; font-size: 11px;
  white-space: pre-wrap; word-break: break-all;
}
body[data-theme="light"] .tc-shell-cmd { background: #f0f0f0; color: #333; }
.tc-shell-prompt { color: #22c55e; font-weight: 600; }
body[data-theme="light"] .tc-shell-prompt { color: #16a34a; }

.tc-terminal-output {
  margin: 4px 0; padding: 6px 8px; border-radius: 4px;
  background: #0c0c0e; color: #d4d4d4;
  font-family: Menlo, Consolas, "Fira Code", monospace; font-size: 11px;
  line-height: 1.4; max-height: 300px; overflow-y: auto;
  white-space: pre-wrap; word-break: break-word;
}
body[data-theme="light"] .tc-terminal-output { background: #fafafa; color: #333; border: 1px solid var(--border); }

/* Grep / search */
.tc-grep-query {
  margin: 2px 0 4px; padding: 2px 6px; border-radius: 3px;
  background: var(--bg-2, var(--bg-0)); display: inline-block;
  font-family: Menlo, Consolas, "Fira Code", monospace; font-size: 11px;
  color: var(--fg-1);
}
.tc-grep-results { margin: 4px 0; }
.tc-grep-row {
  display: flex; gap: 8px; padding: 1px 0; font-size: 11px;
  font-family: Menlo, Consolas, "Fira Code", monospace;
}
.tc-grep-preview { color: var(--fg-2); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.tc-grep-more { color: var(--fg-2); font-size: 10px; font-style: italic; padding: 2px 0; }

/* File list (glob / list_dir) */
.tc-file-list { margin: 4px 0; display: flex; flex-direction: column; gap: 1px; }
.tc-file-list-item { display: block; padding: 1px 0; font-size: 11px; }

/* Web card */
.tc-web-url {
  color: var(--accent, #60a5fa); text-decoration: none; font-size: 11px;
  word-break: break-all;
}
.tc-web-url:hover { text-decoration: underline; }

/* Todo card */
.tc-todo-list { margin: 4px 0; }
.tc-todo-item { display: flex; gap: 6px; padding: 2px 0; font-size: 11px; align-items: baseline; }
.tc-todo-icon { flex-shrink: 0; width: 14px; text-align: center; }
.tc-todo-text { flex: 1; }

/* Show more button */
.tc-show-more {
  display: inline-block; margin: 4px 0; padding: 2px 8px;
  font-size: 10px; color: var(--accent, #60a5fa);
  background: none; border: 1px solid var(--border-subtle, var(--border));
  border-radius: 3px; cursor: pointer;
}
.tc-show-more:hover { background: var(--bg-2); }

/* Raw JSON toggle */
.tc-raw-toggle { margin-top: 6px; }
.tc-raw-toggle > summary {
  font-size: 10px; color: var(--fg-2); cursor: pointer;
  user-select: none; list-style: none; opacity: 0.6;
}
.tc-raw-toggle > summary:hover { opacity: 1; }
.tc-raw-toggle > summary::-webkit-details-marker { display: none; }
.tc-raw-toggle > summary::marker { display: none; }
.tc-raw-json {
  margin: 2px 0; padding: 4px 6px; border-radius: 3px;
  background: var(--bg-0); font-size: 10px; max-height: 200px;
  overflow-y: auto; color: var(--fg-2);
  font-family: Menlo, Consolas, "Fira Code", monospace;
}

.tc-render-error { color: var(--danger, #ef4444); font-size: 10px; padding: 4px 0; }
.tc-generic-result { margin-top: 4px; opacity: 0.8; }

/* --- pending message queue (above chat-input-area) ------------------ */
.queue-list {
  display: flex; flex-direction: column;
  gap: 6px;
  padding: 8px 10px 6px;
  background: var(--bg-1);
  border-top: 1px solid var(--border);
  max-height: 30vh;
  overflow-y: auto;
  scrollbar-width: thin;
  flex-shrink: 0;
}
.queue-list.hidden { display: none; }
.queue-item {
  display: flex; gap: 6px; align-items: flex-start;
  padding: 6px 8px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--bg-2);
  font-size: 12px;
  line-height: 1.4;
}
.queue-item.editing {
  background: color-mix(in srgb, var(--accent) 8%, var(--bg-2));
  border-color: var(--accent);
}
.queue-item .q-index {
  flex: 0 0 auto;
  font-weight: 600;
  color: var(--fg-2);
  min-width: 22px;
  text-align: right;
  user-select: none;
}
.queue-item .q-body {
  flex: 1 1 auto;
  min-width: 0;
  display: flex; flex-direction: column;
  gap: 2px;
}
.queue-item .q-prompt {
  white-space: pre-wrap;
  word-break: break-word;
  color: var(--fg-1);
}
.queue-item .q-meta {
  display: flex; gap: 6px; flex-wrap: wrap;
  font-size: 11px; color: var(--fg-2);
}
.queue-item .q-meta .q-badge {
  padding: 1px 6px;
  border-radius: 8px;
  background: var(--bg-3);
}
.queue-item .q-lock {
  font-size: 11px;
  color: var(--accent);
  display: inline-flex; align-items: center; gap: 2px;
}
.queue-item .q-actions {
  flex: 0 0 auto;
  display: flex; gap: 2px; align-items: center;
}
.queue-item .q-actions button {
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 2px 4px;
  color: var(--fg-2);
  border-radius: 4px;
  font-size: 12px;
}
.queue-item .q-actions button:hover {
  background: var(--bg-3);
  color: var(--fg-1);
}
.queue-item .q-actions button.q-delete:hover {
  color: var(--danger);
}
.queue-item .q-editor {
  display: flex; flex-direction: column;
  gap: 4px; width: 100%;
}
.queue-item .q-editor textarea {
  width: 100%;
  min-height: 56px;
  resize: vertical;
  font-family: inherit;
  font-size: 12px;
  padding: 6px 8px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--bg-0);
  color: var(--fg-1);
  box-sizing: border-box;
}
.queue-item .q-editor-actions {
  display: flex; gap: 6px; justify-content: flex-end;
}
.queue-item .q-editor-actions button {
  padding: 3px 10px;
  border-radius: var(--radius-sm);
  font-size: 12px;
  cursor: pointer;
}

#chat-input-area {
  border-top: 1px solid var(--border); padding: 10px; background: var(--bg-1);
  position: relative; flex-shrink: 0;
  overflow-x: auto;
  scrollbar-width: thin;
}
#chat-input { width: 100%; min-height: 88px; resize: vertical; font-family: inherit; font-size: 12px; padding: 8px 10px; border-radius: var(--radius-md); line-height: 1.5; box-sizing: border-box; }
.chat-bottom {
  display: flex; gap: 4px; justify-content: flex-end; align-items: center;
  margin-top: 6px; position: relative;
  flex-wrap: nowrap;
  width: 100%;
  max-width: 100%;
}
.chat-bottom > button,
.chat-bottom > .icon-btn,
.chat-bottom > select,
.chat-bottom > .flat-select {
  flex-shrink: 0;
  white-space: nowrap;
  height: 28px;
  line-height: 28px;
  padding-top: 0;
  padding-bottom: 0;
  font-size: 12px;
  box-sizing: border-box;
}

/* 历史对话下拉：通过 JS (chat.js::_anchorHistoryPopup) 计算 right 使其
   正对历史按钮上方。这里只给默认值，JS 会覆盖 left/right。 */
.history-input-popup {
  position: fixed; left: auto; right: auto; bottom: auto;
  min-width: 240px; max-width: 360px;
  max-height: 260px; overflow-y: auto;
  background: var(--bg-2); border: 1px solid var(--border);
  border-radius: 6px; z-index: 10000;
  box-shadow: 0 -4px 12px rgba(0,0,0,.25);
}
.history-input-popup .hist-item {
  padding: 6px 10px; cursor: pointer; font-size: 13px;
  border-bottom: 1px solid var(--border);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.history-input-popup .hist-item:last-child { border-bottom: none; }
.history-input-popup .hist-item:hover { background: var(--bg-3); }
.history-input-popup .hist-empty {
  padding: 12px; text-align: center; color: var(--fg-2); font-size: 13px;
}

/* 用户消息时间戳 */
.msg-timestamp { font-size: 11px; color: var(--fg-2); margin-top: 2px; text-align: right; }
.attach-preview { display: flex; gap: 4px; flex-wrap: wrap; }
.attach-preview .chip { padding: 2px 8px; background: var(--bg-2); border-radius: 10px; font-size: 11px; }
.attach-preview .chip .x { color: var(--danger); margin-left: 6px; cursor: pointer; }
#stop-btn { background: var(--danger); color: #fff; border-color: var(--danger); }
#compact-btn { opacity: 0.8; }
#compact-btn:hover { opacity: 1; background: var(--accent); color: #fff; }
.compact-action .bubble { font-style: italic; opacity: 0.7; }

.at-popup {
  position: fixed; bottom: auto; left: auto; width: 300px; max-height: 260px;
  overflow-y: auto; background: var(--bg-2); border: 1px solid var(--border);
  border-radius: 6px; z-index: 10000;
  box-shadow: 0 -4px 12px rgba(0,0,0,.25);
}
.at-popup .item { padding: 4px 8px; cursor: pointer; font-size: 12px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.at-popup .item:hover, .at-popup .item.sel { background: var(--bg-3); }
.at-popup .item mark { background: none; color: var(--accent); font-weight: 600; }

/* ===== Toast / Modal ===== */
#toast-host { position: fixed; top: 50px; left: 50%; transform: translateX(-50%);
              z-index: 500; display: flex; flex-direction: column; align-items: center; gap: 6px; }
.toast { padding: 8px 16px; border-radius: var(--radius-md); background: var(--bg-1);
         border: 1px solid var(--border); border-left: 3px solid var(--accent);
         max-width: 400px; font-size: 13px; animation: toast-in .25s;
         box-shadow: var(--shadow-md); }
.toast.warn { border-left-color: var(--warn); }
.toast.error { border-left-color: var(--danger); }
@keyframes toast-in { from { opacity: 0; transform: translateY(-8px); } to { opacity: 1; transform: translateY(0); } }

#modal-host { position: fixed; inset: 0; display: none; align-items: center; justify-content: center;
              background: rgba(0,0,0,.55); z-index: 300; backdrop-filter: blur(4px); }
#modal-host.show { display: flex; animation: modal-in .15s; }
@keyframes modal-in { from { opacity: 0; } to { opacity: 1; } }
.modal-card { background: var(--bg-1); padding: 20px 24px; border-radius: var(--radius-lg);
              min-width: 380px; max-width: 80vw;
              box-shadow: var(--shadow-lg); border: 1px solid var(--border); }
.modal-card h3 { margin: 0 0 12px 0; font-size: 16px; font-weight: 600; }
.modal-card .actions { display: flex; gap: 8px; justify-content: flex-end; margin-top: 16px; }
.modal-card .actions button { font-size: 13px; padding: 7px 18px; }
.modal-card .actions .primary { background: var(--accent); color: #fff; border: none; font-weight: 500; }
.modal-card .actions .primary:hover { background: var(--accent-hover); }

/* ===== 搜索结果浮层 ===== */
.search-results { position: fixed; width: 600px; max-height: 60vh; overflow-y: auto;
                  background: var(--bg-1); border: 1px solid var(--border);
                  border-radius: 6px; z-index: 400; box-shadow: 0 6px 24px rgba(0,0,0,0.4); }
.search-header { padding: 8px 12px; font-size: 12px; color: var(--fg-2); border-bottom: 1px solid var(--border); background: var(--bg-2); }
.search-results .hit { padding: 8px 12px; cursor: pointer; border-bottom: 1px solid var(--border); font-size: 13px; display: flex; flex-direction: column; gap: 4px; }
.search-results .hit:hover { background: var(--bg-2); }
.search-results .hit .session { color: var(--accent); font-weight: 600; font-size: 11px; }
.search-results .hit .snippet { color: var(--fg-1); font-family: Menlo, Consolas, monospace; font-size: 12px; }
.search-results .hit .snippet mark { background: var(--warn); color: #000; padding: 0 2px; border-radius: 2px; }

/* ===== 右键菜单 ===== */
.ctx-menu {
  position: fixed; z-index: 400; min-width: 160px;
  background: var(--bg-1); border: 1px solid var(--border);
  border-radius: var(--radius-md); padding: 4px 0;
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
}
.ctx-menu.hidden { display: none; }
.ctx-item {
  padding: 8px 14px; cursor: pointer; font-size: 13px; white-space: nowrap;
  margin: 0 3px; border-radius: 3px; transition: background .1s;
}
.ctx-item:hover { background: var(--accent); color: #fff; }
.ctx-item.danger { color: var(--danger); }
.ctx-item.danger:hover { background: var(--danger); color: #fff; }
.ctx-sep { height: 1px; background: var(--border); margin: 4px 6px; }

/* ===== 用户按钮 ===== */
.user-btn {
  font-size: 12px; padding: 3px 8px 3px 4px;
  display: inline-flex; align-items: center; gap: 5px;
}
.user-avatar {
  display: inline-flex; align-items: center; justify-content: center;
  width: 22px; height: 22px; border-radius: 50%;
  background: var(--accent-bg); color: var(--accent);
  font-size: 10px; font-weight: 700; letter-spacing: 0;
  flex-shrink: 0;
}
.user-btn:hover .user-avatar {
  background: var(--accent); color: #fff;
}
.user-chevron { color: var(--fg-2); font-size: 9px; }

/* ===== 用户统计 Modal ===== */
.profile-body { min-width: 520px; }
.stat-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-bottom: 16px; }
.stat-card { background: var(--bg-2); border-radius: 6px; padding: 12px 14px; text-align: center; }
.stat-value { font-size: 20px; font-weight: 700; color: var(--fg-0); }
.stat-label { font-size: 12px; color: var(--fg-2); margin: 2px 0; }
.stat-sub { font-size: 11px; color: var(--fg-2); }
.profile-body h4 { margin: 14px 0 6px; font-size: 13px; color: var(--fg-1); text-transform: uppercase; letter-spacing: 0.04em; }
.bar-chart { display: flex; flex-direction: column; gap: 3px; }
.bar-row { display: flex; align-items: center; gap: 8px; font-size: 12px; }
.bar-date { color: var(--fg-2); width: 40px; flex-shrink: 0; }
.bar-fill { height: 10px; background: var(--accent); border-radius: 2px; min-width: 2px; }
.bar-val { color: var(--fg-1); }
.profile-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.profile-table th, .profile-table td { padding: 5px 10px; border-bottom: 1px solid var(--border); text-align: left; }
.profile-table th { background: var(--bg-2); font-weight: 600; font-size: 12px; }
.profile-table td.num { text-align: right; font-variant-numeric: tabular-nums; }

/* ===== 费用明细 ===== */
.cost-modal { position: fixed; inset: 0; background: rgba(0,0,0,.5); display: flex; align-items: center; justify-content: center; z-index: 200; }
.cost-modal.hidden { display: none; }
.cost-modal-inner { background: var(--bg-1); border: 1px solid var(--border); border-radius: 6px; padding: 12px; max-width: 90vw; max-height: 80vh; overflow: auto; min-width: 600px; }
.cost-modal-head { display: flex; align-items: center; gap: 12px; margin-bottom: 8px; font-weight: bold; }
.cost-modal-head button { margin-left: auto; background: transparent; border: none; color: var(--fg-1); font-size: 18px; cursor: pointer; }
.cost-table { width: 100%; border-collapse: collapse; font-size: 12px; }
.cost-table th, .cost-table td { padding: 4px 8px; border-bottom: 1px solid var(--border); text-align: left; }
.cost-table th { background: var(--bg-2); }

/* ===== 上传进度条 ===== */
.upload-progress-mask { position: fixed; inset: 0; background: rgba(0,0,0,.5); display: flex; align-items: center; justify-content: center; z-index: 300; }
.upload-progress-card { background: var(--bg-1); border: 1px solid var(--border); border-radius: 6px; padding: 16px 18px; min-width: 380px; max-width: 90vw; }
.upload-progress-title { font-weight: 600; margin-bottom: 10px; color: var(--fg-0); font-size: 13px; word-break: break-all; }
.upload-progress-bar { height: 10px; background: var(--bg-2); border-radius: 5px; overflow: hidden; border: 1px solid var(--border); }
.upload-progress-fill { height: 100%; background: var(--accent); transition: width 120ms ease-out; width: 0%; }
.upload-progress-detail { margin-top: 8px; font-size: 12px; color: var(--fg-2); font-variant-numeric: tabular-nums; }
.upload-progress-cancel { margin-top: 12px; padding: 5px 14px; background: var(--bg-2); border: 1px solid var(--border); color: var(--fg-0); border-radius: 4px; cursor: pointer; font-size: 12px; }
.upload-progress-cancel:hover { background: var(--bg-3, #3a3a3a); }
.upload-progress-cancel:disabled { opacity: 0.6; cursor: default; }

/* ===== Ask-Question Card ===== */
.aq-card { background: var(--bg-2); border: 1px solid var(--border); border-radius: 6px;
           padding: 10px 12px; margin: 6px 0;
           min-width: 0; max-width: 100%; overflow-wrap: anywhere; }
.aq-header {
  font-weight: 700; font-size: 14px; color: var(--fg-0);
  margin: -2px -4px 10px; padding: 6px 8px;
  display: flex; align-items: center; gap: 8px;
  background: var(--bg-1); border-radius: 4px;
  border-left: 3px solid var(--accent);
}
.aq-header::before { content: '?'; display: inline-flex; align-items: center; justify-content: center; width: 20px; height: 20px; border-radius: 50%; background: var(--accent); color: #fff; font-size: 12px; font-weight: 700; flex-shrink: 0; }
.aq-group { margin-bottom: 10px; padding-bottom: 8px; border-bottom: 1px dashed var(--border); }
.aq-group:last-of-type { border-bottom: none; padding-bottom: 0; margin-bottom: 4px; }
.aq-prompt-row { display: flex; align-items: flex-start; gap: 8px; margin-bottom: 6px; }
.aq-num { flex-shrink: 0; min-width: 1.4em; font-size: 13px; font-weight: 700; color: var(--accent); line-height: 1.4; }
.aq-prompt { flex: 1; font-size: 12px; font-weight: 500; color: var(--fg-0); line-height: 1.4; }
.aq-options { display: flex; flex-wrap: wrap; gap: 6px; }
.aq-chip { background: var(--bg-1); border: 1px solid var(--border); color: var(--fg-1); padding: 3px 10px; border-radius: 12px; font-size: 11px; cursor: pointer; transition: all 0.15s; }
.aq-chip:hover { border-color: var(--accent); color: var(--accent); }
.aq-chip.selected { background: var(--accent); color: #fff; border-color: var(--accent); }
.aq-actions { display: flex; align-items: center; gap: 10px; margin-top: 8px; padding-top: 6px; border-top: 1px solid var(--border); }
.aq-reply-btn { background: var(--accent); color: #fff; border: none; padding: 4px 12px; border-radius: 4px; font-size: 11px; cursor: pointer; }
.aq-reply-btn:hover { opacity: 0.85; }
.aq-reply-btn:disabled { opacity: 0.5; cursor: default; }
.aq-cancel-btn { background: var(--bg-1); color: var(--fg-1); border: 1px solid var(--border); padding: 4px 12px; border-radius: 4px; font-size: 11px; cursor: pointer; }
.aq-cancel-btn:hover { background: var(--bg-0); color: var(--fg-0); }
.aq-cancel-btn:disabled { opacity: 0.5; cursor: default; }
.aq-note { font-size: 10px; color: var(--fg-2); font-style: italic; }
.aq-answered-label { color: var(--fg-2); font-style: italic; }

/* ===== Plan Approval Card (agent proposed plan, awaiting user review) ===== */


/* ===== Model error bubble (terminal upstream error) ===== */
.model-error-bubble {
  background: color-mix(in srgb, var(--err, #dc2626) 10%, var(--bg-2));
  border: 1px solid var(--err, #dc2626);
  border-left: 4px solid var(--err, #dc2626);
  color: var(--err, #dc2626);
  padding: 8px 12px; border-radius: 6px;
  margin: 6px 0; font-size: 12px; font-weight: 500;
}
@media (prefers-color-scheme: dark) {
  .model-error-bubble { color: #fca5a5; background: #3a0e0e; border-color: #7f1d1d; }
}

/* ===== Rate-limit notice (non-fatal yellow inline) ===== */
.rate-limit-notice {
  background: #fff8e1; color: #8a6500;
  border: 1px solid #f0c14b; border-left: 3px solid #f0c14b;
  padding: 4px 10px; border-radius: 4px;
  margin: 4px 0; font-size: 11px;
}
@media (prefers-color-scheme: dark) {
  .rate-limit-notice { background: #2a2200; color: #ffda6a; border-color: #665500; }
}

/* ===== Unknown stream-event tag ===== */
.unknown-event-tag {
  display: inline-block; font-size: 10px; color: var(--fg-2);
  background: var(--bg-1); border: 1px dashed var(--border);
  border-radius: 3px; padding: 1px 6px; margin: 4px 0;
  font-family: monospace; opacity: 0.7;
}

/* ===== Claude AskUserQuestion Card ===== */
.caq-card { background: var(--bg-2); border: 1px solid var(--accent); border-radius: 8px;
            padding: 14px 16px; margin: 8px 0; }
.caq-card.caq-answered { border-color: var(--border); opacity: 0.85; }
.caq-title { font-size: 13px; font-weight: 600; color: var(--accent); margin-bottom: 10px; }
.caq-section { margin-bottom: 14px; }
.caq-section:last-of-type { margin-bottom: 6px; }
.caq-question-row { display: flex; align-items: baseline; gap: 8px; margin-bottom: 8px; flex-wrap: wrap; }
.caq-badge { background: var(--accent); color: #fff; font-size: 10px; font-weight: 700;
             padding: 2px 8px; border-radius: 10px; text-transform: uppercase; flex-shrink: 0; }
.caq-question-text { font-size: 12.5px; color: var(--fg-0); line-height: 1.5; }
.caq-options { display: flex; flex-direction: column; gap: 6px; }
.caq-opt { display: block; text-align: left; background: var(--bg-1); border: 1.5px solid var(--border);
           border-radius: 6px; padding: 8px 12px; cursor: pointer; transition: all 0.15s; width: 100%; }
.caq-opt:hover { border-color: var(--accent); background: var(--bg-0); }
.caq-opt.selected { border-color: var(--accent); background: color-mix(in srgb, var(--accent) 12%, var(--bg-1)); }
.caq-opt-label { font-size: 12px; font-weight: 600; color: var(--fg-0); }
.caq-opt-desc { font-size: 11px; color: var(--fg-2); margin-top: 2px; line-height: 1.4; }
.caq-opt.selected .caq-opt-label::before { content: '✓ '; color: var(--accent); }
.caq-answered .caq-opt:not(.selected) { opacity: 0.4; }
.caq-actions { display: flex; align-items: center; gap: 10px; margin-top: 10px;
               padding-top: 8px; border-top: 1px solid var(--border); }
.caq-submit { background: var(--accent); color: #fff; border: none; padding: 6px 16px;
              border-radius: 4px; font-size: 12px; font-weight: 500; cursor: pointer; }
.caq-submit:hover { opacity: 0.85; }
.caq-submit:disabled { opacity: 0.5; cursor: default; }
.caq-hint { font-size: 10px; color: var(--fg-2); font-style: italic; }
.caq-status { font-size: 11px; color: var(--fg-2); font-weight: 500; }
.caq-text-input { width: 100%; background: var(--bg-1); border: 1.5px solid var(--border); border-radius: 6px;
                  padding: 6px 10px; font-size: 12px; color: var(--fg-0); resize: vertical; font-family: inherit; }
.caq-text-input:focus { border-color: var(--accent); outline: none; }
.caq-text-input:disabled { opacity: 0.6; }

/* ===== Plan Card ===== */
.plan-card { background: var(--bg-2); border: 1px solid var(--border); border-radius: 6px; padding: 0; margin: 6px 0; overflow: hidden;
             min-width: 0; max-width: 100%; }
.plan-header { display: flex; align-items: center; justify-content: space-between; gap: 8px;
               padding: 8px 12px; background: var(--bg-1); border-bottom: 1px solid var(--border);
               min-width: 0; }
.plan-title {
  font-weight: 700; font-size: 15px; color: var(--fg-0);
  display: flex; align-items: center; gap: 8px;
  letter-spacing: 0.02em;
  /* 让标题溢出时省略号，给按钮组让位 */
  min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.plan-title::before { content: '\1F4CB'; font-size: 16px; flex-shrink: 0; }
.plan-btn-group { display: flex; gap: 6px; flex-shrink: 0; }
.plan-view-btn, .plan-build-btn { border: none; padding: 4px 10px; border-radius: 4px; font-size: 11px; cursor: pointer; font-weight: 500; }
.plan-view-btn { background: var(--bg-2); color: var(--fg-1); border: 1px solid var(--border); }
.plan-view-btn:hover { border-color: var(--accent); color: var(--accent); }
.plan-build-btn { background: var(--accent, #3b82f6); color: #fff; }
.plan-build-btn:hover { background: var(--accent-hover, #2563eb); }
.plan-overview { padding: 8px 12px; font-size: 12px; color: var(--fg-1); border-bottom: 1px solid var(--border); }
.plan-todos { list-style: none; padding: 8px 12px; margin: 0; font-size: 12px; color: var(--fg-1); border-bottom: 1px solid var(--border); }
.plan-todos li { display: flex; align-items: flex-start; gap: 8px; padding: 4px 0; }
.plan-todo-num { flex-shrink: 0; min-width: 1.4em; font-weight: 700; color: var(--accent); }
.plan-todo-text { flex: 1; line-height: 1.4; }
.plan-card details { border-top: none; }
.plan-card details summary { padding: 6px 12px; font-size: 11px; color: var(--fg-2); cursor: pointer; user-select: none; }
.plan-card details summary:hover { color: var(--fg-1); }
.plan-preview { padding: 8px 12px; font-size: 12px; line-height: 1.5; color: var(--fg-1);
                max-height: 400px; overflow-y: auto; overflow-x: auto; word-wrap: break-word; overflow-wrap: anywhere; }
.plan-preview h1, .plan-preview h2, .plan-preview h3 { margin: 8px 0 4px; color: var(--fg-0); }
.plan-preview p { margin: 4px 0; }
.plan-preview code { background: var(--bg-1); padding: 1px 4px; border-radius: 3px; font-size: 11px; }
.plan-preview pre { background: var(--bg-1); padding: 8px; border-radius: 4px; overflow-x: auto; }
.plan-preview ul, .plan-preview ol { padding-left: 18px; margin: 4px 0; }
.plan-preview li { margin: 2px 0; }

/* ===== Terminal Tab Bar ===== */
.term-tab-bar { display: flex; align-items: center; gap: 0; padding: 0 4px; background: var(--bg-2); border-bottom: 1px solid var(--border); flex-shrink: 0; overflow-x: auto; height: 28px; min-height: 28px; }
.term-tab-bar::-webkit-scrollbar { height: 0; }
.term-tab { background: none; border: none; color: var(--fg-2); padding: 4px 12px; font-size: 11px; cursor: pointer; border-bottom: 2px solid transparent; white-space: nowrap; flex-shrink: 0; }
.term-tab:hover { color: var(--fg-1); }
.term-tab.active { color: var(--fg-0); border-bottom-color: var(--accent); }
.term-tab-sep { width: 1px; height: 14px; background: var(--border); margin: 0 2px; flex-shrink: 0; }

/* Remote dynamic tabs */
.remote-tab { display: inline-flex; align-items: center; gap: 4px; position: relative; padding-right: 18px; }
.remote-tab-dot { width: 6px; height: 6px; border-radius: 50%; flex-shrink: 0; }
.remote-tab-dot.green { background: #22c55e; }
.remote-tab-dot.red { background: #ef4444; }
.remote-tab-dot.gray { background: #6b7280; }
.remote-tab-close {
  position: absolute; right: 2px; top: 50%; transform: translateY(-50%);
  width: 14px; height: 14px; line-height: 14px; text-align: center;
  font-size: 12px; color: var(--fg-2); border-radius: 3px;
  opacity: 0; transition: opacity .12s;
  cursor: pointer;
}
.remote-tab:hover .remote-tab-close { opacity: 0.7; }
.remote-tab-close:hover { opacity: 1 !important; background: var(--bg-hover); color: var(--fg-0); }
.remote-tab-add { font-size: 14px; font-weight: 600; padding: 4px 8px; color: var(--fg-2); }
.remote-tab-add:hover { color: var(--accent); }

/* ===== Remote Panel ===== */
.remote-toolbar { display: flex; align-items: center; gap: 6px; padding: 4px 8px; background: var(--bg-2); border-bottom: 1px solid var(--border); }
.remote-label { font-size: 11px; font-weight: 600; color: var(--fg-1); }
.remote-status-dot { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }
.remote-status-dot.green { background: #22c55e; box-shadow: 0 0 4px #22c55e88; }
.remote-status-dot.red { background: #ef4444; }
.remote-status-dot.gray { background: #6b7280; }
.remote-config-toggle { padding: 2px 6px !important; font-size: 12px !important; }
.remote-sync-btn { padding: 2px 8px !important; font-size: 11px !important; }
.remote-sync-btn:disabled { opacity: 0.5; }
.remote-config { padding: 8px 10px; display: flex; flex-wrap: wrap; gap: 6px 12px; background: var(--bg-1); border-bottom: 1px solid var(--border); }
.remote-config label { font-size: 11px; color: var(--fg-1); display: flex; align-items: center; gap: 4px; }
.remote-config input, .remote-config select { font-size: 11px; padding: 2px 6px; background: var(--bg-2); border: 1px solid var(--border); color: var(--fg-0); border-radius: 3px; }
.remote-config input { width: 140px; }
.remote-term-host { flex: 1; min-height: 0; overflow: hidden; background: #1a1a2e; }
.remote-terms-host { flex: 1; min-height: 0; overflow: hidden; position: relative; display: flex; flex-direction: column; }
.remote-no-tabs { flex: 1; display: flex; align-items: center; justify-content: center; }
#remote-host { display: flex; flex-direction: column; flex: 1; min-height: 0; overflow: hidden; }
#remote-host.hidden { display: none; }
.remote-progress { padding: 4px 8px; background: var(--bg-1); border-bottom: 1px solid var(--border); display: flex; flex-direction: column; gap: 3px; }
.remote-progress.hidden { display: none; }
.remote-progress-track { height: 4px; background: var(--bg-3); border-radius: 2px; overflow: hidden; }
.remote-progress-fill { height: 100%; background: linear-gradient(90deg, #22c55e, #10b981); width: 0; transition: width 0.18s ease-out; }
.remote-progress-text { font-size: 11px; color: var(--fg-2); font-family: monospace; line-height: 1.3; }

/* ===== Target Token Section ===== */
.remote-token-section { width: 100%; margin-top: 6px; padding-top: 8px; border-top: 1px dashed var(--border); display: flex; flex-direction: column; gap: 4px; }
.remote-token-row { display: flex; align-items: center; gap: 6px; }
.remote-token-label { font-size: 11px; color: var(--fg-1); font-weight: 600; flex: 1; }
.remote-token-row .flat-btn { padding: 2px 8px; font-size: 11px; }
.remote-token-value { width: 100%; font-family: monospace; font-size: 11px; padding: 3px 6px; background: var(--bg-2); border: 1px solid var(--border); color: var(--fg-0); border-radius: 3px; }
.remote-token-meta { font-size: 10px; color: var(--fg-2); }
.remote-token-fetch { font-size: 11px; padding: 3px 10px; align-self: flex-start; }
.remote-token-fetch.hidden { display: none; }
.remote-token-snippet { font-size: 11px; color: var(--fg-2); margin-top: 2px; }
.remote-token-snippet summary { cursor: pointer; user-select: none; }
.remote-token-cmd { background: var(--bg-2); border: 1px solid var(--border); border-radius: 3px; padding: 6px 8px; margin-top: 4px; font-size: 11px; white-space: pre-wrap; word-break: break-all; color: var(--fg-0); }

/* ===== Settings popup — Remote button ===== */
.term-settings-sep { height: 1px; background: var(--border); margin: 2px -2px; }
.term-settings-remote-btn {
  display: flex; align-items: center; gap: 8px;
  width: 100%; padding: 6px 8px; border: none; border-radius: 4px;
  background: transparent; color: var(--fg-1); font-size: 12px;
  cursor: pointer; transition: background .12s, color .12s;
}
.term-settings-remote-btn:hover { background: var(--bg-hover); color: var(--fg-0); }
.term-settings-remote-btn .remote-status-dot { width: 7px; height: 7px; }
.term-settings-arrow { margin-left: auto; color: var(--fg-2); font-size: 11px; }

/* ===== Remote Modal ===== */
.remote-modal {
  position: fixed; inset: 0; z-index: 350;
  display: flex; align-items: center; justify-content: center;
  background: rgba(0,0,0,.55); backdrop-filter: blur(6px);
  animation: rm-fade-in .18s ease-out;
}
.remote-modal.hidden { display: none; }
@keyframes rm-fade-in { from { opacity: 0; } to { opacity: 1; } }

.rm-card {
  background: var(--bg-1); border: 1px solid var(--border);
  border-radius: var(--radius-lg); box-shadow: var(--shadow-lg);
  width: 1014px; max-width: 94vw; max-height: 88vh;
  display: flex; flex-direction: column; overflow: hidden;
  animation: rm-slide-up .2s ease-out;
}
@keyframes rm-slide-up { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: translateY(0); } }

/* Header */
.rm-header {
  display: flex; align-items: center; gap: 10px;
  padding: 16px 20px 14px; border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
.rm-header-icon {
  width: 32px; height: 32px; border-radius: 8px;
  background: linear-gradient(135deg, var(--accent), #7c3aed);
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: 16px; flex-shrink: 0;
}
.rm-header-text { flex: 1; }
.rm-header-title { font-size: 16px; font-weight: 700; color: var(--fg-0); margin: 0; line-height: 1.2; }
.rm-header-sub { font-size: 11px; color: var(--fg-2); margin-top: 1px; }
.rm-close {
  width: 28px; height: 28px; border-radius: 6px;
  display: flex; align-items: center; justify-content: center;
  background: transparent; border: none; color: var(--fg-2);
  font-size: 16px; cursor: pointer; flex-shrink: 0;
  transition: background .12s, color .12s;
}
.rm-close:hover { background: var(--bg-2); color: var(--fg-0); }

/* Body */
.rm-body { flex: 1; overflow-y: auto; padding: 16px 20px 20px; display: flex; flex-direction: column; gap: 16px; }
.rm-two-col { flex-direction: row; gap: 20px; }
.rm-col-left { width: 280px; flex-shrink: 0; display: flex; flex-direction: column; gap: 12px; overflow-y: auto; }
.rm-col-right { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 16px; overflow-y: auto; }

/* Section titles */
.rm-section { display: flex; flex-direction: column; gap: 10px; }
.rm-section-head {
  display: flex; align-items: center; gap: 8px;
  font-size: 11px; font-weight: 700; color: var(--fg-2);
  text-transform: uppercase; letter-spacing: .06em;
}
.rm-section-head::after {
  content: ''; flex: 1; height: 1px; background: var(--border);
}

/* Active remotes list */
.rm-remotes-list { display: flex; flex-direction: column; gap: 4px; }
.rm-remote-item {
  display: flex; align-items: center; gap: 8px;
  padding: 8px 10px; background: var(--bg-2); border: 1px solid var(--border);
  border-radius: var(--radius-sm); font-size: 12px; transition: background .12s;
}
.rm-remote-item:hover { background: var(--bg-3); }
.rm-remote-item.attached { opacity: 0.65; }
.rm-remote-label { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: var(--fg-1); font-family: Menlo, Consolas, monospace; font-size: 11px; }
.rm-connect-btn {
  padding: 3px 10px; font-size: 11px; font-weight: 500;
  background: var(--accent); color: #fff; border: none;
  border-radius: var(--radius-sm); cursor: pointer;
  white-space: nowrap; transition: background .12s;
}
.rm-connect-btn:hover { background: var(--accent-hover); }
.rm-stop-btn {
  padding: 3px 10px; font-size: 11px; font-weight: 500;
  background: transparent; color: var(--fg-2); border: 1px solid var(--border);
  border-radius: var(--radius-sm); cursor: pointer;
  white-space: nowrap; transition: background .12s, color .12s, border-color .12s;
  margin-left: 4px;
}
.rm-stop-btn:hover { background: #e53e3e20; color: #e53e3e; border-color: #e53e3e80; }
.rm-attached-badge { font-size: 10px; color: var(--fg-2); white-space: nowrap; }
.rm-refresh-btn {
  background: none; border: none; color: var(--fg-2);
  font-size: 14px; cursor: pointer; padding: 0 4px;
  transition: color .12s, transform .2s; line-height: 1;
}
.rm-refresh-btn:hover { color: var(--accent); transform: rotate(90deg); }

/* Status cards grid */
.rm-status-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px;
}
.rm-status-card {
  background: var(--bg-2); border: 1px solid var(--border);
  border-radius: var(--radius-md); padding: 12px 14px;
  display: flex; flex-direction: column; gap: 6px;
  transition: border-color .15s, background .15s;
  cursor: pointer;
}
.rm-status-card:hover { background: var(--bg-3); }
.rm-status-card.active { border-color: var(--accent); }
.rm-status-card-head {
  display: flex; align-items: center; gap: 6px;
  font-size: 12px; font-weight: 600; color: var(--fg-0);
}
.rm-status-dot {
  width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0;
}
.rm-status-dot.green { background: var(--ok); box-shadow: 0 0 4px var(--ok); }
.rm-status-dot.red { background: var(--danger); }
.rm-status-dot.gray { background: #6b7280; }
.rm-status-dot.yellow { background: var(--warn); box-shadow: 0 0 4px var(--warn); }
.rm-status-card-body { font-size: 11px; color: var(--fg-2); line-height: 1.5; }
.rm-status-card-body .rm-stat-row {
  display: flex; justify-content: space-between; align-items: center;
}
.rm-stat-val { color: var(--fg-1); font-weight: 500; font-variant-numeric: tabular-nums; }
.rm-active-badge {
  font-size: 10px; padding: 1px 6px; border-radius: 8px;
  background: var(--accent-bg); color: var(--accent); font-weight: 600;
}

/* Configuration form */
.rm-config-grid {
  display: grid; grid-template-columns: 110px 1fr; gap: 8px 12px;
  align-items: center;
}
.rm-config-label {
  font-size: 12px; color: var(--fg-1); font-weight: 500;
  text-align: right; white-space: nowrap;
}
.rm-config-input, .rm-config-select {
  font-size: 12px; padding: 6px 10px;
  background: var(--bg-2); border: 1px solid var(--border);
  color: var(--fg-0); border-radius: var(--radius-sm);
  transition: border-color .15s;
  width: 100%; box-sizing: border-box;
}
.rm-config-input:focus, .rm-config-select:focus {
  border-color: var(--accent); outline: none;
}
.rm-config-input::placeholder { color: var(--fg-2); opacity: .7; }
.rm-config-hint {
  grid-column: 1 / -1; font-size: 11px; color: var(--fg-2);
  padding: 6px 10px; background: var(--bg-2); border-radius: var(--radius-sm);
  border-left: 2px solid var(--accent);
  font-family: Menlo, Consolas, monospace;
  word-break: break-all;
}
.rm-config-actions {
  grid-column: 1 / -1; display: flex; justify-content: flex-end; gap: 8px;
  padding-top: 4px;
}

/* Token section */
.rm-token-row {
  display: flex; align-items: center; gap: 6px;
}
.rm-token-input {
  flex: 1; font-size: 12px; padding: 6px 10px;
  background: var(--bg-2); border: 1px solid var(--border);
  color: var(--fg-0); border-radius: var(--radius-sm);
  font-family: Menlo, Consolas, monospace;
}
.rm-token-btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 6px 10px; font-size: 11px;
  background: var(--bg-2); border: 1px solid var(--border);
  color: var(--fg-1); border-radius: var(--radius-sm);
  cursor: pointer; white-space: nowrap;
  transition: background .12s, color .12s, border-color .12s;
}
.rm-token-btn:hover { background: var(--bg-3); color: var(--fg-0); border-color: var(--fg-2); }
.rm-token-btn.danger:hover { border-color: var(--danger); color: var(--danger); }
.rm-token-meta { font-size: 11px; color: var(--fg-2); line-height: 1.4; }
.rm-token-fetch-btn {
  font-size: 12px; padding: 6px 14px;
  background: var(--accent); color: #fff; border: none;
  border-radius: var(--radius-sm); cursor: pointer; font-weight: 500;
  transition: background .12s;
}
.rm-token-fetch-btn:hover { background: var(--accent-hover); }

/* Guide — mode tabs */
.rm-guide-tabs {
  display: flex; gap: 0; border-bottom: 1px solid var(--border); margin-bottom: 10px;
}
.rm-guide-tab {
  padding: 5px 14px; font-size: 12px; font-weight: 500;
  background: transparent; border: none; color: var(--fg-1);
  cursor: pointer; border-bottom: 2px solid transparent;
  transition: color .15s, border-color .15s;
}
.rm-guide-tab:hover { color: var(--fg-0); }
.rm-guide-tab.active {
  color: var(--accent); border-bottom-color: var(--accent); font-weight: 600;
}
.rm-guide-content { /* wrapper for dynamic guide body */ }
.rm-guide-content .rm-section-head { font-size: 11px; margin-top: 12px; margin-bottom: 6px; }
.rm-guide-content .rm-section-head:first-child { margin-top: 0; }

/* Guide — principle + topology + steps */
.rm-guide-principle {
  font-size: 12px; color: var(--fg-1); line-height: 1.55;
  margin-bottom: 8px;
}
.rm-topology {
  margin: 0 0 6px; padding: 10px 12px;
  background: var(--bg-0); border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-family: Menlo, Consolas, monospace; font-size: 11px;
  line-height: 1.5; color: var(--fg-1);
  overflow-x: auto; white-space: pre;
}
.rm-topology-notes {
  font-size: 11px; color: var(--fg-2); line-height: 1.5; margin-bottom: 4px;
}
.rm-guide-steps { display: flex; flex-direction: column; gap: 6px; }
.rm-guide-step {
  display: flex; gap: 10px; align-items: flex-start;
  padding: 6px 0;
}
.rm-guide-step-num {
  width: 22px; height: 22px; border-radius: 50%; flex-shrink: 0;
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--accent); color: #fff; font-size: 11px; font-weight: 700;
}
.rm-guide-step-body { flex: 1; min-width: 0; }
.rm-guide-step-title { font-size: 12px; font-weight: 600; color: var(--fg-0); line-height: 1.4; }
.rm-guide-step-detail { font-size: 11px; color: var(--fg-2); line-height: 1.5; margin-top: 2px; }
.rm-guide-note {
  margin-top: 10px; padding: 6px 8px; border-left: 3px solid var(--accent, #4a90e2);
  background: var(--bg-1); border-radius: 3px;
  font-size: 11px; color: var(--fg-2); line-height: 1.5;
}

/* Command snippet */
.rm-cmd-block.rm-cmd-inline { margin-top: 6px; }
.rm-cmd-block {
  background: var(--bg-0); border: 1px solid var(--border);
  border-radius: var(--radius-sm); padding: 10px 12px;
  font-family: Menlo, Consolas, monospace; font-size: 11px;
  line-height: 1.55; color: var(--fg-1);
  white-space: pre-wrap; word-break: break-all;
  max-height: 200px; overflow-y: auto; position: relative;
}
.rm-cmd-copy {
  position: absolute; top: 6px; right: 6px;
  font-size: 10px; padding: 2px 8px;
  background: var(--bg-2); border: 1px solid var(--border);
  color: var(--fg-2); border-radius: 3px; cursor: pointer;
  opacity: 0; transition: opacity .15s;
}
.rm-cmd-block:hover .rm-cmd-copy { opacity: 1; }
.rm-cmd-copy:hover { color: var(--fg-0); background: var(--bg-3); }

/* Sessions list */
.rm-sessions-list { display: flex; flex-direction: column; gap: 6px; }
.rm-session-item {
  display: flex; align-items: center; gap: 10px;
  padding: 8px 12px; background: var(--bg-2); border: 1px solid var(--border);
  border-radius: var(--radius-sm); font-size: 12px;
}
.rm-session-dot { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }
.rm-session-dot.running { background: var(--ok); animation: rm-pulse 1.4s ease-in-out infinite; }
.rm-session-dot.done { background: var(--fg-2); }
@keyframes rm-pulse {
  0%, 100% { opacity: 1; } 50% { opacity: .4; }
}
.rm-session-cmd {
  flex: 1; font-family: Menlo, Consolas, monospace; font-size: 11px;
  color: var(--fg-1); overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.rm-session-time { font-size: 11px; color: var(--fg-2); flex-shrink: 0; font-variant-numeric: tabular-nums; }
.rm-session-exit { font-size: 11px; color: var(--fg-2); flex-shrink: 0; }
.rm-session-exit.error { color: var(--danger); }
.rm-empty { font-size: 12px; color: var(--fg-2); text-align: center; padding: 12px; }

/* Rate limit warning */
.rate-limit-warning {
  background: #fef3cd; color: #856404; border: 1px solid #ffc107;
  border-radius: 4px; padding: 6px 10px; margin: 4px 0; font-size: 12px;
}
@media (prefers-color-scheme: dark) {
  .rate-limit-warning { background: #332b00; color: #ffda6a; border-color: #665500; }
}

/* Background task card (collapsible) */
.background-task-card {
  background: var(--bg-2); border: 1px solid var(--border);
  border-radius: 4px; margin: 4px 0; font-size: 12px; overflow: hidden;
}
.background-task-card .task-summary {
  padding: 6px 10px; cursor: pointer; list-style: none; display: flex;
  align-items: baseline; gap: 6px; user-select: none;
}
.background-task-card .task-summary::-webkit-details-marker { display: none; }
.background-task-card .task-summary::marker { display: none; }
.background-task-card .task-summary::before {
  content: '▶'; font-size: 9px; color: var(--fg-2); transition: transform .15s;
  flex-shrink: 0;
}
.background-task-card[open] > .task-summary::before { transform: rotate(90deg); }
.background-task-card .task-badge {
  background: var(--accent); color: #fff; border-radius: 3px;
  padding: 1px 5px; font-size: 10px; font-weight: 600; flex-shrink: 0;
}
.background-task-card .task-desc { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; flex: 1; min-width: 0; }
.background-task-card .task-status { color: var(--fg-2); font-style: italic; flex-shrink: 0; }
.background-task-card .task-body {
  padding: 6px 10px; border-top: 1px solid var(--border);
  white-space: pre-wrap; word-break: break-word; font-size: 11px;
  color: var(--fg-1); max-height: 300px; overflow-y: auto;
}

/* SDK debug panel */
.sdk-debug-panel {
  background: var(--bg-2); border: 1px solid var(--border);
  border-radius: 4px; padding: 8px 12px; margin: 4px 0; font-size: 11px;
  font-family: Menlo, Consolas, monospace;
}
.sdk-debug-panel summary {
  cursor: pointer; font-weight: 600; font-size: 12px;
  user-select: none; color: var(--fg-2);
}
.sdk-debug-panel .debug-row { display: flex; gap: 8px; padding: 2px 0; }
.sdk-debug-panel .debug-key { color: var(--fg-2); min-width: 100px; }
.sdk-debug-panel .debug-val { color: var(--fg-1); word-break: break-all; }

/* Responsive */
@media (max-width: 640px) {
  .rm-two-col { flex-direction: column; }
  .rm-col-left { width: 100%; }
  .rm-status-grid { grid-template-columns: 1fr; }
  .rm-config-grid { grid-template-columns: 1fr; }
  .rm-config-label { text-align: left; }
}