/* CAN Monitor · 应用样式（Polar Precision，复用 theme.css 令牌，不引 Element Plus） */

/* ── 应用外壳（四区栅格） ── */
.app {
  --sidebar-w: 208px;
  --sidebar-w-collapsed: 66px;
  --topbar-h: 56px;
  --statusbar-h: 28px;
  height: calc(100vh / var(--zoom, 1));
  display: grid;
  grid-template-columns: var(--sidebar-w) minmax(0, 1fr);
  grid-template-rows: var(--topbar-h) minmax(0, 1fr) var(--statusbar-h);
  transition: grid-template-columns .28s var(--ease-premium);
  position: relative; z-index: 1;
}
.app.collapsed { --sidebar-w: var(--sidebar-w-collapsed); }

.sidebar {
  grid-column: 1; grid-row: 1 / 3; z-index: 20;
  display: flex; flex-direction: column; overflow: hidden;
  border-right: 1px solid var(--border);
  background: color-mix(in srgb, var(--surface-1) 86%, transparent);
}
.brand { height: 56px; display: flex; align-items: center; gap: 10px; padding: 0 16px; border-bottom: 1px solid var(--border); }
.brand .logo { width: 26px; height: 26px; flex: none; }
.brand .name { font-weight: 640; font-size: 14px; letter-spacing: -.02em; white-space: nowrap; }
.brand .ver { font: 500 9px var(--mono); color: var(--text-3); letter-spacing: .06em; }
.collapsed .brand .name, .collapsed .brand .ver { display: none; }
.side-scroll { flex: 1; overflow-y: auto; padding: 8px 12px; }
.nav-label { padding: 12px 10px 6px; color: var(--text-3); font: 600 10px var(--mono); letter-spacing: .12em; text-transform: uppercase; }
.collapsed .nav-label { text-align: center; padding: 12px 0 6px; font-size: 8px; }
.nav-item {
  width: 100%; height: 40px; position: relative; display: flex; align-items: center; gap: 11px;
  padding: 0 11px; border: 0; border-radius: 9px; background: transparent; color: var(--text-2);
  cursor: pointer; font-size: 13px; font-family: var(--sans); text-align: left; margin-bottom: 2px;
  transition: background .16s, color .16s;
}
.nav-item:hover { background: var(--surface-2); color: var(--text-1); }
.nav-item.active { background: var(--accent-dim); color: var(--accent); font-weight: 600; }
.nav-item.active::before { content: ""; position: absolute; left: -12px; top: 9px; bottom: 9px; width: 3px; border-radius: 0 3px 3px 0; background: var(--accent); }
.nav-item .nav-ico { width: 18px; height: 18px; flex: none; }
.nav-item .nav-badge { margin-left: auto; font: 600 10px var(--mono); color: var(--text-3); }
.nav-item.active .nav-badge { color: var(--accent); }
.collapsed .nav-item { justify-content: center; padding: 0; }
.collapsed .nav-item span:not(.nav-ico), .collapsed .nav-item .nav-badge { display: none; }
.side-foot { padding: 10px 12px; border-top: 1px solid var(--border); }

.topbar { grid-column: 2; grid-row: 1; z-index: 30; display: flex; align-items: center; gap: 10px; padding: 0 16px; border-bottom: 1px solid var(--border); background: color-mix(in srgb, var(--surface-1) 92%, transparent); }
.breadcrumbs { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--text-2); }
.breadcrumbs b { color: var(--text-1); font-weight: 600; }
.breadcrumbs .sep { color: var(--text-3); }
.spacer { flex: 1; }
.main { grid-column: 2; grid-row: 2; overflow: hidden; padding: 0; display: flex; flex-direction: column; min-height: 0; }
.view { flex: 1 1 auto; width: 100%; max-width: none; margin: 0; min-height: 0; overflow: auto; padding: 20px 22px 24px; display: flex; flex-direction: column; gap: 14px; }

/* ── 卡片内部滚动：卡片标题固定，表格区自身滚动；空间不足时不裁剪卡片而是出内滚动条 ── */
/* 固定高度块（KPI/工具行/模式栏/告警）不参与压缩，压缩量全部让给表格卡片 */
.view > .kpi-band, .view > .toolbar, .view > .tx-mode-bar, .view > .warn-banner { flex: 0 0 auto; }
/* 直接包含表格的卡片：竖向 flex，表格区 flex 撑满并内部滚动（thead 已 sticky 固定） */
.view .card:has(> .table-wrap) { display: flex; flex-direction: column; min-height: 160px; }
.view .card:has(> .table-wrap) > .table-wrap { flex: 1 1 auto; min-height: 0; }
.statusbar { grid-column: 1 / 3; grid-row: 3; z-index: 20; display: flex; align-items: center; gap: 16px; padding: 0 14px; border-top: 1px solid var(--border); background: var(--surface-1); color: var(--text-2); font: 10px var(--mono); overflow: hidden; white-space: nowrap; }
.statusbar b { color: var(--text-1); }
.statusbar .st-item { display: flex; align-items: center; gap: 6px; }

/* ── 按钮 ── */
.btn { min-height: 34px; display: inline-flex; align-items: center; justify-content: center; gap: 7px; padding: 0 12px; border: 1px solid var(--border); border-radius: 10px; background: var(--surface-2); color: var(--text-1); font: 560 13px var(--sans); cursor: pointer; white-space: nowrap; transition: transform .3s var(--ease-premium), box-shadow .3s, border-color .3s, background .16s, color .16s; }
.btn:not(.is-text):hover { transform: translateY(-1px); }
.btn:active { transform: scale(.975); }
.btn.primary { color: #fff; border-color: transparent; background: linear-gradient(145deg, var(--accent-grad-a), var(--accent-grad-b)); box-shadow: inset 0 1px 0 rgba(255,255,255,.24), 0 14px 28px -20px rgba(var(--accent-rgb),.75); }
html.dark .btn.primary { color: #03161B; }
.btn.danger { color: #fff; border-color: #D94754; background: linear-gradient(145deg, #E45B67, #C83544); }
.btn.warn { color: #fff; border-color: transparent; background: linear-gradient(145deg, #D69A2C, #B4790F); }
.btn.is-text { border-color: transparent; background: transparent; color: var(--accent); }
.btn.sm { min-height: 28px; padding: 0 9px; font-size: 12px; border-radius: 8px; }
.btn:disabled { opacity: .4; cursor: not-allowed; transform: none; box-shadow: none; }
.icon-btn { width: 34px; height: 34px; flex: none; border: 1px solid transparent; background: transparent; border-radius: 9px; color: var(--text-2); cursor: pointer; display: flex; align-items: center; justify-content: center; transition: background .16s, color .16s, border-color .16s; }
.icon-btn:hover { background: var(--surface-2); color: var(--text-1); }
.icon-btn.on { color: var(--accent); background: var(--accent-dim); }

/* 顶栏胶囊按钮 */
.pill { display: inline-flex; align-items: center; gap: 7px; height: 34px; padding: 0 11px; border: 1px solid var(--border); border-radius: 9px; background: var(--surface-2); color: var(--text-1); font-size: 12px; cursor: pointer; white-space: nowrap; }
.pill:hover { border-color: var(--border-strong); }
.pill .dot { width: 7px; height: 7px; }
.pill .ck { font: 500 10px var(--mono); color: var(--text-3); border: 1px solid var(--border); border-radius: 5px; padding: 1px 5px; }
.pill.rec-on { border-color: rgba(248,113,113,.5); color: var(--danger); }

/* ── 在线/离线模式切换下拉 ── */
.mode-switch { position: relative; display: inline-flex; }
.mode-switch .mm-caret { color: var(--text-3); margin-left: 1px; transform: rotate(90deg); }
.scrim-clear { position: fixed; inset: 0; z-index: 55; background: transparent; }
.mode-menu { position: absolute; z-index: 56; top: calc(100% + 6px); right: 0; width: 300px; max-height: 60vh; overflow: auto;
  background: var(--surface-1); border: 1px solid var(--border-highlight); border-radius: 12px; box-shadow: var(--shadow-pop); padding: 6px; }
.mode-menu .mm-item { display: flex; align-items: center; gap: 8px; width: 100%; padding: 9px 10px; border: 0; border-radius: 8px;
  background: transparent; color: var(--text-1); font-size: 12px; cursor: pointer; text-align: left; }
.mode-menu .mm-item:hover { background: var(--surface-2); }
.mode-menu .mm-item.on { background: var(--accent-dim); color: var(--accent); }
.mode-menu .mm-item .dot { width: 7px; height: 7px; flex: none; }
.mode-menu .mm-file { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 12px; }
.mode-menu .mm-hint { margin-left: auto; padding-left: 8px; font: 10px var(--mono); color: var(--text-3); white-space: nowrap; flex: none; }
.mode-menu .mm-item.on .mm-hint { color: var(--accent); }
.mode-menu .mm-label { padding: 8px 10px 4px; font: 600 10px var(--mono); letter-spacing: .06em; text-transform: uppercase; color: var(--text-3); }
.mode-menu .mm-empty { padding: 12px 10px; font-size: 12px; color: var(--text-3); }
.mode-menu .mm-foot { display: flex; gap: 6px; padding: 6px 4px 2px; margin-top: 4px; border-top: 1px solid var(--border); }

/* ── 分段控件 ── */
.segmented { display: inline-flex; padding: 3px; border: 1px solid var(--border); border-radius: 11px; background: color-mix(in srgb, var(--surface-2) 72%, transparent); gap: 2px; }
.segmented button { min-height: 28px; padding: 0 12px; border: 0; border-radius: 8px; background: transparent; color: var(--text-2); cursor: pointer; font: 12px var(--sans); transition: background .16s, color .16s; }
.segmented button:hover { color: var(--text-1); }
.segmented button[aria-pressed="true"] { background: var(--surface-1); color: var(--text-1); box-shadow: var(--shadow-1); }
.segmented.accent button[aria-pressed="true"] { background: var(--accent); color: #fff; box-shadow: none; }
html.dark .segmented.accent button[aria-pressed="true"] { color: #03161B; }
.segmented .count { margin-left: 5px; font: 9px var(--mono); opacity: .6; }

/* ── 输入 ── */
.input, select.input { min-height: 36px; padding: 0 11px; border: 0; border-radius: 10px; background: var(--surface-2); box-shadow: inset 0 0 0 1px var(--border); color: var(--text-1); font: 13px var(--sans); outline: none; }
.input:focus { box-shadow: inset 0 0 0 1px rgba(var(--accent-rgb),.65), var(--ring); }
.input.mono { font-family: var(--mono); }
.field-label { font-size: 12px; color: var(--text-2); margin-bottom: 6px; display: block; }

/* ── KPI ── */
.kpi-band { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.kpi { padding: 14px 15px; }
.kpi .eyebrow { font: 600 11px var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--text-2); }
.kpi .value { margin-top: 10px; font: 700 27px/1.05 var(--mono); font-variant-numeric: tabular-nums; letter-spacing: -.04em; color: var(--text-1); }
.kpi .value small { color: var(--text-2); font: 500 12px var(--sans); }
.kpi .foot { margin-top: 6px; color: var(--text-3); font: 10px var(--mono); }
.kpi.alarm .value { color: var(--danger); }

/* ── 工具行 ── */
.toolbar { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.toolbar.rec-toolbar { flex-wrap: nowrap; overflow-x: auto; }
.toolbar.rec-toolbar > * { flex: none; }
.toolbar.rec-rules { align-items: center; gap: 10px; flex-wrap: wrap; }
.rec-rule { display: inline-flex; align-items: center; gap: 6px; color: var(--text-2); font-size: 13px; }
.rec-rule-num { width: 72px; min-height: 32px; text-align: right; }
.toolbar .search { flex: 1; min-width: 160px; }
.toolbar .match { font: 11px var(--mono); color: var(--text-3); white-space: nowrap; }

/* ── 数据表格 ── */
.table-wrap { overflow: auto; }
.dt { width: 100%; border-collapse: collapse; }
.dt th { height: 38px; padding: 0 12px; text-align: left; white-space: nowrap; position: sticky; top: 0; z-index: 1; border-bottom: 1px solid var(--border); background: color-mix(in srgb, var(--surface-2) 92%, var(--surface-1)); color: #8496A0; font: 540 10px var(--mono); letter-spacing: .07em; text-transform: uppercase; }
html.dark .dt th { color: #718094; }
.dt td { height: 42px; padding: 0 12px; border-bottom: 1px solid var(--border); white-space: nowrap; font-size: 13px; }
.dt tbody tr:hover td { background: color-mix(in srgb, var(--accent) 3.5%, transparent); }
.dt tr.sel > td { background: color-mix(in srgb, var(--accent) 3.5%, transparent); }
.dt tr.sel > td:first-child { box-shadow: inset 2px 0 0 var(--accent); }
.dt tr.stale td { opacity: .55; }
.dt tr.err > td:first-child { box-shadow: inset 2px 0 0 var(--danger); }
.dt .num { text-align: right; font-family: var(--mono); font-variant-numeric: tabular-nums; letter-spacing: -.02em; }
.dt tr.clickable { cursor: pointer; }
.dt .row-leading-cell { width: 58px; padding-left: 8px; padding-right: 8px; text-align: center; }
.row-leading { width: 100%; display: inline-flex; align-items: center; justify-content: center; gap: 8px; vertical-align: middle; }
.dt .expander {
  width: 16px; height: 16px; flex: none; display: inline-flex;
  align-items: center; justify-content: center; color: var(--text-3);
  transition: color .18s;
}
.dt .expander::before {
  content: ""; width: 6px; height: 6px;
  border-right: 1.5px solid currentColor; border-bottom: 1.5px solid currentColor;
  transform: translateX(-1px) rotate(-45deg);
  transform-origin: 50% 50%;
  transition: transform .18s var(--ease-premium);
}
.dt tr.open .expander,
.dt .expander.open { color: var(--accent); }
.dt tr.open .expander::before,
.dt .expander.open::before { transform: translateY(-1px) rotate(45deg); }
.sub-table { background: color-mix(in srgb, var(--surface-2) 55%, transparent); }
.sub-table td { padding: 0; }
.sig-table { width: 100%; border-collapse: collapse; margin: 2px 0; }
.sig-table th { height: 30px; padding: 0 12px; text-align: left; font: 540 10px var(--mono); letter-spacing: .06em; text-transform: uppercase; color: var(--text-3); }
.sig-table td { height: 32px; padding: 0 12px; font-size: 12px; border: 0; }
.sig-table .num { text-align: right; font-family: var(--mono); }

/* ── CAN 专属 ── */
.can-id { font-family: var(--mono); font-weight: 600; letter-spacing: -.02em; }
.dir-badge { display: inline-flex; align-items: center; height: 19px; padding: 0 7px; border-radius: 5px; font: 600 10px var(--mono); letter-spacing: .04em; }
.dir-rx { background: var(--surface-3); color: var(--text-2); }
.dir-tx { background: var(--accent-dim); color: var(--accent); }
.hex { font-family: var(--mono); font-variant-numeric: tabular-nums; display: inline-flex; gap: 5px; }
.hex b { font-weight: 400; }
.hex .empty-byte { color: var(--text-3); }
.hex .chg { font-weight: 700; background: var(--surface-3); border-radius: 3px; padding: 0 1px; margin: 0 -1px; animation: byteFade .6s var(--ease-premium); }
@keyframes byteFade { from { background: color-mix(in srgb, var(--accent) 22%, transparent); } to { background: var(--surface-3); } }

.badge.online  { background: rgba(52,211,153,.14); color: var(--success); }
.badge.pending { background: rgba(251,191,36,.16); color: #9A680B; }
.badge.relay   { background: rgba(96,165,250,.14); color: #3977CF; }
.badge.danger  { background: rgba(248,113,113,.14); color: var(--danger); }
.badge.neutral { background: var(--surface-3); color: var(--text-2); }
.badge.accent  { background: var(--accent-dim); color: var(--accent); }
html.dark .badge.pending { color: #FBBF24; }
.ml4 { margin-left: 4px; }
.back-latest { position: absolute; right: 18px; bottom: 16px; z-index: 5; box-shadow: var(--shadow-2, 0 4px 14px rgba(0,0,0,.18)); }

/* ── 观察面板 ── */
.trace-layout { display: grid; grid-template-columns: minmax(0,1fr) 300px; gap: 12px; align-items: start; }
.trace-layout.no-watch { grid-template-columns: minmax(0,1fr); }
.watch-card { position: sticky; top: 0; }

/* ── 离线回放时间线（主内容底部固定传输栏，单行紧凑） ── */
.replay-bar { flex: 0 0 auto; z-index: 15; margin: 0; padding: 8px 16px; border-radius: 0; border-left: 0; border-right: 0; border-bottom: 0; border-top: 1px solid var(--border-highlight); display: flex; align-items: center; gap: 10px; box-shadow: 0 -6px 18px -12px rgba(0,0,0,.24); }
.icon-round { width: 30px; min-width: 30px; height: 30px; padding: 0; border-radius: 50%; }
.icon-round.lg { width: 34px; min-width: 34px; height: 34px; }
.replay-clock { flex: 0 0 auto; font: 600 12px var(--mono); font-variant-numeric: tabular-nums; color: var(--text-1); letter-spacing: .01em; margin-left: 2px; }
.replay-clock .sep { color: var(--text-3); margin: 0 4px; }
.segmented.sm button { min-height: 26px; padding: 0 8px; font-size: 11px; }
.timeline { flex: 1 1 auto; position: relative; height: 34px; border-radius: 8px; background: var(--surface-2); border: 1px solid var(--border); overflow: hidden; cursor: pointer; touch-action: none; user-select: none; }
.tl-histo { position: absolute; inset: 0; display: flex; align-items: flex-end; gap: 1px; padding: 0 1px; pointer-events: none; }
.tl-bar { flex: 1 1 0; min-width: 0; background: color-mix(in srgb, var(--accent) 42%, transparent); border-radius: 1px 1px 0 0; }
.tl-bar.err { background: color-mix(in srgb, var(--danger) 66%, transparent); }
.tl-progress { position: absolute; top: 0; left: 0; bottom: 0; background: rgba(var(--accent-rgb), .12); border-right: 1.5px solid var(--accent); pointer-events: none; }
.tl-head { position: absolute; top: 0; bottom: 0; width: 0; pointer-events: none; }
.tl-knob { position: absolute; top: 50%; left: 0; width: 12px; height: 12px; transform: translate(-50%, -50%); border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 3px rgba(var(--accent-rgb), .18), var(--shadow-pop); }
.watch-item { border: 1px solid var(--border); border-radius: 10px; padding: 10px 11px; margin-bottom: 8px; background: var(--surface-1); }
.watch-item .wl-top { display: flex; align-items: baseline; justify-content: space-between; }
.watch-item .wl-name { font: 600 11px var(--mono); letter-spacing: .04em; color: var(--text-2); text-transform: uppercase; }
.watch-item .wl-cmt { font-size: 11px; margin-top: 2px; line-height: 1.3; }
.watch-item .wl-val { font: 700 24px/1 var(--mono); font-variant-numeric: tabular-nums; letter-spacing: -.03em; margin-top: 6px; }
.watch-item .wl-val small { font: 500 12px var(--sans); color: var(--text-2); margin-left: 3px; }
.watch-item .wl-spark { height: 34px; margin-top: 6px; }
.watch-item .wl-x { border: 0; background: transparent; color: var(--text-3); cursor: pointer; font-size: 14px; line-height: 1; padding: 2px; }
.watch-item .wl-x:hover { color: var(--danger); }
.watch-hint { border: 1px dashed var(--border-strong); border-radius: 10px; padding: 22px 12px; text-align: center; color: var(--text-3); font-size: 12px; }

/* ── 树 ── */
.tree-node { user-select: none; }
.tree-msg { display: flex; align-items: center; gap: 8px; height: 32px; padding: 0 8px; border-radius: 8px; cursor: pointer; font: 600 12px var(--mono); }
.tree-msg:hover { background: var(--surface-2); }
.tree-msg .exp {
  width: 14px; height: 14px; flex: none; display: inline-flex;
  align-items: center; justify-content: center; color: var(--text-3);
  transition: color .16s;
}
.tree-msg .exp::before {
  content: ""; width: 5px; height: 5px;
  border-right: 1.5px solid currentColor; border-bottom: 1.5px solid currentColor;
  transform: translateX(-1px) rotate(-45deg);
  transform-origin: 50% 50%;
  transition: transform .16s var(--ease-premium);
}
.tree-msg.open .exp { color: var(--accent); }
.tree-msg.open .exp::before { transform: translateY(-1px) rotate(45deg); }
.tree-sig { display: flex; align-items: center; gap: 8px; height: 30px; padding: 0 8px 0 30px; border-radius: 8px; cursor: pointer; font-size: 12px; color: var(--text-2); }
.tree-sig:hover { background: var(--surface-2); color: var(--text-1); }
.tree-sig .cbx { width: 15px; height: 15px; border: 1px solid var(--border-strong); border-radius: 4px; flex: none; display: inline-flex; align-items: center; justify-content: center; }
.tree-sig.on .cbx { background: var(--accent); border-color: var(--accent); color: #fff; }
.tree-sig .u { margin-left: auto; font: 10px var(--mono); color: var(--text-3); flex: none; }
.tree-sig .ts-name { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.tree-sig .ts-cmt { color: var(--text-3); margin-left: 6px; }

/* ── 图表 ── */
.chart { width: 100%; height: 100%; min-height: 360px; }
.legend-row { display: flex; flex-wrap: wrap; gap: 14px; padding: 4px 2px 10px; }
.legend-row .lg { display: flex; align-items: center; gap: 6px; font-size: 12px; color: var(--text-2); }
.legend-row .lg b { font-family: var(--mono); color: var(--text-1); }
.legend-row .lg .sw { width: 10px; height: 10px; border-radius: 3px; }

/* ── 两栏（信号页） ── */
.two-col { display: grid; grid-template-columns: 288px minmax(0,1fr); gap: 12px; align-items: stretch; min-height: 520px; }
.fill-card { display: flex; flex-direction: column; }
.fill-card .card-body { flex: 1; display: flex; flex-direction: column; min-height: 0; }

/* ── 警示条（发送页） ── */
.warn-banner { display: flex; align-items: center; gap: 12px; padding: 13px 16px; border-radius: 12px; border: 1px solid rgba(197,138,29,.4); border-left-width: 3px; background: rgba(197,138,29,.09); }
.warn-banner .wi { color: var(--warning); flex: none; }
.warn-banner .wt { font-weight: 600; }
.warn-banner .wd { color: var(--text-2); font-size: 12px; }
.warn-banner .wd code { font-family: var(--mono); color: var(--warning); }

/* ── 发送方式分组：DBC 与原始帧是互斥工作区 ── */
.tx-mode-bar {
  min-height: 44px; display: flex; align-items: center; gap: 12px;
  padding: 3px 2px; border-bottom: 1px solid var(--border);
}
.tx-mode-hint { flex: 1; color: var(--text-3); font-size: 12px; }
.tx-mode-bar > .badge { flex: none; }
.tx-raw-group { align-items: stretch; }

/* ── 开关 ── */
.switch { width: 40px; height: 22px; position: relative; padding: 0; border: 0; border-radius: 999px; background: var(--surface-3); cursor: pointer; flex: none; }
.switch::after { content: ""; position: absolute; top: 3px; left: 3px; width: 16px; height: 16px; border-radius: 50%; background: var(--surface-1); box-shadow: 0 1px 3px rgba(0,0,0,.22); transition: transform .18s var(--ease-premium); }
.switch[aria-checked="true"] { background: var(--accent); }
.switch[aria-checked="true"]::after { transform: translateX(18px); }
.switch.danger[aria-checked="true"] { background: var(--danger); }

/* ── hex 字节输入 ── */
.byte-grid { display: flex; gap: 6px; flex-wrap: wrap; }
.byte-grid input { width: 44px; height: 40px; text-align: center; border: 0; border-radius: 8px; background: var(--surface-2); box-shadow: inset 0 0 0 1px var(--border); font: 600 14px var(--mono); text-transform: uppercase; color: var(--text-1); outline: none; }
.byte-grid input:focus { box-shadow: inset 0 0 0 1px rgba(var(--accent-rgb),.65), var(--ring); }

/* ── 上传区 ── */
.dropzone { border: 1.5px dashed var(--border-strong); border-radius: 12px; padding: 34px; text-align: center; color: var(--text-2); cursor: pointer; transition: border-color .16s, background .16s; }
.dropzone:hover, .dropzone.drag { border-color: var(--accent); background: var(--accent-dim); }
.dropzone .dz-ico { color: var(--text-3); margin-bottom: 8px; }

/* ── 日志/历史 ── */
.log-list { max-height: 260px; overflow: auto; }
.log-line { font: 12px var(--mono); color: var(--text-2); padding: 5px 8px; border-bottom: 1px solid var(--border); display: flex; gap: 10px; }
.log-line:hover { background: var(--surface-2); }

/* ── 设置 ── */
.set-layout { display: grid; grid-template-columns: 180px minmax(0,1fr); gap: 16px; align-items: start; }
.set-anchor { position: sticky; top: 0; display: flex; flex-direction: column; gap: 2px; }
.set-anchor button { text-align: left; border: 0; background: transparent; color: var(--text-2); font-size: 13px; padding: 8px 11px; border-radius: 8px; cursor: pointer; }
.set-anchor button:hover { background: var(--surface-2); color: var(--text-1); }
.set-anchor button.on { background: var(--accent-dim); color: var(--accent); font-weight: 600; }
.set-row { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 13px 0; border-bottom: 1px solid var(--border); }
.set-row:last-child { border-bottom: 0; }
.set-row .col span:first-child { font-weight: 540; }
.set-row .hint { color: var(--text-3); font-size: 12px; margin-top: 3px; }

/* ── DBC 发送表：与 CAN Trace 共用紧凑、连续的表格视觉 ── */
.tx-dbc-card { overflow: hidden; }
.tx-dbc-head { background: color-mix(in srgb, var(--surface-1) 94%, transparent); }
.tx-dbc-head > div:first-child { display: flex; align-items: baseline; gap: 8px; }
.tx-dbc-actions { margin-left: auto; }
.tx-run-label {
  min-width: 48px; color: var(--text-2); font: 500 11px var(--mono);
  font-variant-numeric: tabular-nums;
}
.tx-run-label.on { color: var(--danger); }
.tx-dbc-scroll { max-height: 540px; }
.tx-dbc-table { min-width: 980px; }
.tx-dbc-table .tx-msg-row td { height: 43px; }
.tx-dbc-table .tx-msg-row.open td {
  background: color-mix(in srgb, var(--accent) 4.5%, var(--surface-1));
  border-bottom-color: rgba(var(--accent-rgb), .16);
}
.tx-state-cell { width: 58px; }
.tx-state-cell .dot { width: 7px; height: 7px; vertical-align: middle; }
.tx-dbc-table .hex { gap: 4px; }
.tx-dbc-table .tx-period {
  width: 62px; min-height: 27px; height: 27px; padding: 0 6px;
  border-radius: 5px; text-align: right; background: transparent;
  box-shadow: inset 0 0 0 1px transparent;
  transition: background .16s, box-shadow .16s;
}
.tx-dbc-table tr:hover .tx-period,
.tx-dbc-table .tx-period:focus {
  background: var(--surface-1);
  box-shadow: inset 0 0 0 1px var(--border-strong);
}
.tx-row-switch { width: 32px; height: 18px; vertical-align: middle; }
.tx-row-switch::after { width: 12px; height: 12px; top: 3px; left: 3px; }
.tx-row-switch[aria-checked="true"]::after { transform: translateX(14px); }
.tx-send-once { min-height: 26px; opacity: .68; }
.tx-msg-row:hover .tx-send-once,
.tx-send-once:focus-visible { opacity: 1; }

/* 展开区：单一淡青表面，不再使用卡片式信号行 */
.tx-config-panel > td {
  padding: 0 !important;
  background: color-mix(in srgb, var(--accent) 7%, var(--surface-2));
  border-bottom: 1px solid rgba(var(--accent-rgb), .18);
}
.tx-editor-table { margin: 0; table-layout: fixed; }
.tx-editor-table th {
  position: static; height: 31px; background: transparent;
  color: var(--text-3); border-bottom-color: rgba(var(--accent-rgb), .10);
}
.tx-editor-table td {
  height: 36px; padding: 0 12px; border: 0; white-space: normal;
  background: transparent; font-size: 12px;
}
.tx-editor-table tbody tr:hover td {
  background: color-mix(in srgb, var(--accent) 3%, transparent);
}
.tx-editor-name {
  width: 22%; color: var(--text-1); font: 500 12px var(--mono);
  white-space: nowrap !important; overflow: hidden; text-overflow: ellipsis;
}
.tx-editor-desc { width: 38%; color: var(--text-2); line-height: 1.35; }
.tx-editor-value { width: 20%; }
.tx-editor-range {
  width: 14%; text-align: right; color: var(--text-3);
  font: 11px var(--mono); white-space: nowrap !important;
}
.tx-editor-unit {
  width: 6%; color: var(--text-2); font: 11px var(--mono);
  white-space: nowrap !important;
}
.tx-value-select,
.tx-value-input {
  width: min(100%, 180px); height: 28px; padding: 0 8px;
  border: 1px solid transparent; border-radius: 5px;
  outline: none; color: var(--text-1); background: rgba(var(--glass-rgb), .5);
  font: 12px var(--mono); transition: border-color .16s, background .16s, box-shadow .16s;
}
.tx-value-select:hover,
.tx-value-input:hover { border-color: var(--border-strong); background: var(--surface-1); }
.tx-value-select:focus,
.tx-value-input:focus { border-color: var(--accent); background: var(--surface-1); box-shadow: var(--ring); }
.tx-auto-value { color: var(--accent); font: 500 11px var(--mono); }
.tx-mux-note {
  padding: 8px 12px; border-bottom: 1px solid rgba(var(--accent-rgb), .10);
  color: var(--warning); font-size: 12px;
}

/* ── 未保存栏 / Toast ── */
.unsaved-bar { position: fixed; left: 50%; bottom: 40px; transform: translateX(-50%); z-index: 55; display: flex; align-items: center; gap: 14px; padding: 10px 12px 10px 18px; border-radius: 12px; background: var(--surface-1); border: 1px solid var(--border-strong); box-shadow: var(--shadow-pop); }
.toast-zone { position: fixed; right: 20px; bottom: 20px; z-index: 70; display: flex; flex-direction: column; gap: 8px; }
.toast { min-width: 240px; max-width: 360px; padding: 11px 14px; border-radius: 10px; background: var(--surface-1); border: 1px solid var(--border); box-shadow: var(--shadow-2); font-size: 13px; display: flex; gap: 9px; align-items: flex-start; animation: toastIn .3s var(--ease-premium); }
.toast.success { border-left: 3px solid var(--success); }
.toast.error { border-left: 3px solid var(--danger); }
.toast.info { border-left: 3px solid var(--accent); }
@keyframes toastIn { from { opacity: 0; transform: translateX(12px); } to { opacity: 1; transform: none; } }

/* ── 弹窗 ── */
.scrim { position: fixed; inset: 0; z-index: 49; background: rgba(25,45,55,.28); backdrop-filter: blur(2px); }
.modal { position: fixed; z-index: 50; left: 50%; top: 50%; transform: translate(-50%,-50%); width: min(92vw, 480px); border-radius: 18px; background: var(--surface-1); border: 1px solid var(--border-highlight); box-shadow: var(--shadow-pop), inset 0 0 0 1px var(--border); }
.modal .m-head { padding: 18px 20px 4px; font-size: 15px; font-weight: 620; }
.modal .m-body { padding: 8px 20px 18px; color: var(--text-2); font-size: 13px; line-height: 1.55; }
.modal .m-body code { font-family: var(--mono); color: var(--text-1); }
.modal .m-foot { padding: 14px 20px; display: flex; justify-content: flex-end; gap: 8px; border-top: 1px solid var(--border); }
.modal.warn { border-top: 3px solid var(--warning); }

/* ── 命令面板 ── */
.cmdk { position: fixed; z-index: 60; left: 50%; top: 90px; transform: translateX(-50%); width: min(92vw, 560px); border-radius: 14px; background: var(--surface-1); border: 1px solid var(--border-highlight); box-shadow: var(--shadow-pop); overflow: hidden; }
.cmdk input { width: 100%; height: 50px; border: 0; background: transparent; padding: 0 18px; font-size: 15px; color: var(--text-1); outline: none; border-bottom: 1px solid var(--border); }
.cmdk .ci { display: flex; align-items: center; gap: 10px; padding: 11px 18px; cursor: pointer; font-size: 13px; }
.cmdk .ci.on, .cmdk .ci:hover { background: var(--accent-dim); color: var(--accent); }
.cmdk .ci .k { margin-left: auto; font: 10px var(--mono); color: var(--text-3); }

/* ── 空态 / 会话卡 ── */
.empty-page { text-align: center; padding: 50px 20px; color: var(--text-3); }
.empty-page b { display: block; color: var(--text-2); font-size: 14px; margin-bottom: 6px; }
.info-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 14px; }
.info-grid .ig .k { font: 600 10px var(--mono); text-transform: uppercase; letter-spacing: .08em; color: var(--text-3); }
.info-grid .ig .v { font: 500 15px var(--mono); color: var(--text-1); margin-top: 4px; }

/* progress bar */
.mini-bar { height: 6px; border-radius: 4px; background: var(--surface-3); overflow: hidden; min-width: 80px; }
.mini-bar > i { display: block; height: 100%; background: var(--accent); border-radius: 4px; transition: width .3s; }

.rec-dot { animation: pulse 1.5s ease-in-out infinite; }
html.reduce-motion .rec-dot { animation: none; }

/* 响应式 */
@media (max-width: 1120px) {
  .app { --sidebar-w: var(--sidebar-w-collapsed); }
  .app .nav-label { text-align: center; padding: 12px 0 6px; font-size: 8px; }
  .app .brand .name, .app .brand .ver { display: none; }
  .app .nav-item { justify-content: center; padding: 0; }
  .app .nav-item span:not(.nav-ico), .app .nav-item .nav-badge { display: none; }
  .trace-layout { grid-template-columns: minmax(0,1fr); }
  .two-col, .set-layout { grid-template-columns: minmax(0,1fr); }
}
@media (max-width: 820px) {
  .kpi-band { grid-template-columns: repeat(2, 1fr); }
  .breadcrumbs .crumb-root, .breadcrumbs .sep { display: none; }
  .main { padding: 14px; }
  .tx-mode-bar { flex-wrap: wrap; padding-bottom: 8px; }
  .tx-mode-hint { order: 3; flex-basis: 100%; }
}