/* 铁路巡检控制台 · 亮色主题
   一个品牌蓝 + 三个状态色，其余灰阶；画面区保留深色（模拟相机成像） */

:root {
  --bg: #f4f6fa;
  --panel: #ffffff;
  --panel-soft: #f8fafc;
  --line: #e4e9f1;
  --line-soft: #eef2f7;
  --text: #16202c;
  --text-dim: #54637a;
  --text-mute: #8b98ab;
  --accent: #2563eb;
  --accent-soft: #eff4ff;
  --ok: #0d9f74;
  --ok-soft: #e8f8f2;
  --warn: #d97706;
  --warn-soft: #fdf3e3;
  --crit: #e11d48;
  --crit-soft: #fdeef1;
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", Consolas, "Liberation Mono", monospace;
  --radius: 12px;
  --shadow: 0 1px 2px rgba(16, 24, 40, .05);
}

* { box-sizing: border-box; }

html, body { height: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, -apple-system, sans-serif;
  font-size: 13px;
  -webkit-font-smoothing: antialiased;
  overflow: hidden;
}

.mono { font-family: var(--mono); font-variant-numeric: tabular-nums; }

/* ---------- 顶栏 ---------- */

.app { height: 100%; display: flex; flex-direction: column; }

.topbar {
  height: 58px;
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 0 18px;
  background: var(--panel);
  border-bottom: 1px solid var(--line);
  z-index: 5;
}

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

.logo {
  width: 34px; height: 34px;
  display: grid; place-items: center;
  border-radius: 9px;
  color: #fff;
  background: var(--accent);
  box-shadow: 0 2px 6px rgba(37, 99, 235, .28);
}

.brand-text h1 { margin: 0; font-size: 15px; font-weight: 600; letter-spacing: .3px; }

.brand-text p {
  margin: 2px 0 0;
  font-size: 9px;
  letter-spacing: 1.1px;
  color: var(--text-mute);
  font-family: var(--mono);
}

.pill-demo {
  margin-left: 8px;
  padding: 1px 6px;
  border: 1px solid #cddff9;
  border-radius: 4px;
  color: var(--accent);
  background: var(--accent-soft);
  font-size: 9px;
}

.run-info { display: flex; gap: 26px; margin-left: auto; white-space: nowrap; }
.info-item { display: flex; flex-direction: column; align-items: flex-start; gap: 2px; }
.info-item .k { font-size: 10px; color: var(--text-mute); letter-spacing: .3px; }
.info-item .v { font-size: 13px; color: var(--text); font-weight: 500; white-space: nowrap; }
.info-item .v em { font-style: normal; font-size: 10px; color: var(--text-mute); margin-left: 3px; font-weight: 400; }

/* 顶栏演示启停 */
.demo-btn {
  font-size: 12.5px;
  padding: 7px 14px;
  border-radius: 8px;
  color: var(--text-dim);
  white-space: nowrap;
}
.demo-btn:hover { color: var(--text); }
.demo-btn.is-paused {
  background: var(--ok);
  border-color: var(--ok);
  color: #fff;
  box-shadow: 0 1px 3px rgba(13, 159, 116, .25);
}
.demo-btn.is-paused:hover { background: #0b8a63; border-color: #0b8a63; color: #fff; }

.status-badge {
  display: flex; align-items: center; gap: 7px;
  padding: 6px 13px;
  border: 1px solid #c7ecdd;
  background: var(--ok-soft);
  border-radius: 20px;
  font-size: 12px;
  color: var(--ok);
  font-weight: 500;
}
.status-badge i {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--ok);
  box-shadow: 0 0 0 3px rgba(13, 159, 116, .14);
  animation: pulse 1.8s infinite;
}
.status-badge.paused {
  border-color: var(--line);
  background: var(--panel-soft);
  color: var(--text-mute);
}
.status-badge.paused i { background: var(--text-mute); box-shadow: none; animation: none; }

@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: .35; } }

/* ---------- 布局 ---------- */

.layout { flex: 1; display: flex; min-height: 0; }

.sidebar {
  width: 206px;
  flex: 0 0 auto;
  background: var(--panel);
  border-right: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  padding: 16px 12px 12px;
  gap: 4px;
}

.nav-label {
  font-size: 10px;
  letter-spacing: 1px;
  color: var(--text-mute);
  padding: 0 10px 8px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 9px 10px;
  border: 0;
  border-radius: 8px;
  background: none;
  color: var(--text-dim);
  font-family: inherit;
  font-size: 13px;
  cursor: pointer;
  text-align: left;
  position: relative;
  transition: background .15s, color .15s;
}
.nav-item svg { width: 17px; height: 17px; flex: 0 0 auto; fill: none; stroke: currentColor; stroke-width: 1.6; }
.nav-item:hover { background: var(--panel-soft); color: var(--text); }
.nav-item.active {
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 600;
}
.nav-item.active::before {
  content: "";
  position: absolute; left: -12px; top: 50%;
  transform: translateY(-50%);
  width: 3px; height: 18px;
  background: var(--accent);
  border-radius: 0 3px 3px 0;
}

.nav-badge {
  margin-left: auto;
  font-style: normal;
  font-size: 10.5px;
  font-family: var(--mono);
  min-width: 18px;
  height: 18px;
  padding: 0 5px;
  border-radius: 9px;
  display: grid;
  place-items: center;
  color: var(--warn);
  background: var(--warn-soft);
}
.nav-badge.has-crit { color: var(--crit); background: var(--crit-soft); }

.sidebar-foot {
  margin-top: auto;
  padding: 12px 10px 4px;
  border-top: 1px solid var(--line-soft);
  display: flex;
  flex-direction: column;
  gap: 7px;
}
.foot-row { display: flex; justify-content: space-between; font-size: 11px; color: var(--text-mute); }
.foot-row b { color: var(--text-dim); font-family: var(--mono); font-weight: 500; }
.foot-ver { margin-top: 6px; font-size: 9.5px; letter-spacing: .8px; color: #b7c1cf; font-family: var(--mono); }

.main { flex: 1; min-width: 0; padding: 14px 16px 16px; overflow: hidden; }

.view { display: none; height: 100%; }
.view.active { display: block; }

/* ---------- 通用卡片 ---------- */

.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 0;
  overflow: hidden;
}

.card-head {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 9px 14px;
  border-bottom: 1px solid var(--line-soft);
  flex: 0 0 auto;
}
.card-head h3 {
  margin: 0;
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: .2px;
}
.card-head .sub { margin-left: auto; font-size: 10.5px; color: var(--text-mute); font-family: var(--mono); }

/* ---------- 板块页 ---------- */

.board {
  height: 100%;
  display: grid;
  grid-template-rows: auto minmax(0, 1.08fr) minmax(0, .88fr) minmax(0, .76fr);
  gap: 12px;
}

.board-head {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 0 2px 2px;
  min-height: 34px;
}
.bh-main { display: flex; align-items: baseline; gap: 10px; }
.bh-main h2 { margin: 0; font-size: 17px; font-weight: 600; letter-spacing: .2px; }
.bh-en { font-size: 9.5px; letter-spacing: 1.2px; color: var(--text-mute); font-family: var(--mono); }
.bh-desc { margin: 0; font-size: 11.5px; color: var(--text-mute); }
.bh-right { margin-left: auto; display: flex; align-items: center; gap: 16px; }
.bh-counts { display: flex; gap: 14px; font-size: 11.5px; color: var(--text-mute); }
.bh-counts b { font-family: var(--mono); font-weight: 600; margin-left: 3px; }
.bh-counts b.crit { color: var(--crit); }
.bh-counts b.warn { color: var(--warn); }
.bh-counts b.info { color: var(--accent); }

.board-top, .board-mid { display: grid; grid-template-columns: minmax(0, 1fr) 308px; gap: 12px; min-height: 0; }

/* 相机 */
.cam-card { padding: 0; }
.cam-stage { position: relative; flex: 1; min-height: 0; background: #0b1016; overflow: hidden; }
.cam-stage canvas { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
.cam-flash {
  position: absolute; inset: 0;
  background: radial-gradient(circle at 50% 50%, rgba(244, 72, 92, .28), transparent 65%);
  opacity: 0;
  pointer-events: none;
}
.cam-flash.on { animation: flashBox 1.1s ease-out; }
@keyframes flashBox { 0% { opacity: 1; } 100% { opacity: 0; } }

.cam-bar {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 7px 12px;
  border-top: 1px solid var(--line-soft);
  font-size: 11px;
}
.cam-id { color: var(--text); font-weight: 500; }
.cam-meta { color: var(--text-mute); font-family: var(--mono); font-size: 10px; }

.cam-state {
  font-size: 10.5px;
  padding: 2px 9px;
  border-radius: 20px;
  font-weight: 500;
}
.cam-state.ok { color: var(--ok); background: var(--ok-soft); }
.cam-state.warn { color: var(--warn); background: var(--warn-soft); }
.cam-state.crit { color: var(--crit); background: var(--crit-soft); }

/* 指标 */
.metric-list {
  flex: 1;
  min-height: 0;
  padding: 12px 14px;
  display: grid;
  grid-template-columns: 1fr;
  align-content: space-between;
  padding: 16px 16px;
}
.metric { min-width: 0; }
.m-row { display: flex; justify-content: space-between; align-items: baseline; gap: 6px; }
.m-name { font-size: 11.5px; color: var(--text-dim); white-space: nowrap; }
.m-val { font-size: 16px; font-weight: 500; white-space: nowrap; }
.m-val em { font-style: normal; font-size: 9.5px; color: var(--text-mute); margin-left: 3px; font-weight: 400; }
.m-val.is-over { color: var(--crit); }

.bar {
  height: 4px;
  margin-top: 6px;
  background: var(--line-soft);
  border-radius: 2px;
  overflow: hidden;
}
.bar i {
  display: block;
  height: 100%;
  width: 40%;
  background: var(--accent);
  border-radius: 2px;
  transition: width .25s linear, background .2s;
}
.bar i.over { background: var(--crit); }

.metric-foot {
  flex: 0 0 auto;
  display: flex;
  border-top: 1px solid var(--line-soft);
}
.metric-foot > div {
  flex: 1;
  padding: 8px 14px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.metric-foot > div:first-child { border-right: 1px solid var(--line-soft); }
.metric-foot span { font-size: 9.5px; color: var(--text-mute); }
.metric-foot b { font-size: 12px; font-weight: 500; color: var(--text-dim); }

/* 曲线 */
.chart-card .chart-wrap { flex: 1; min-height: 0; padding: 6px 8px 2px; }
.chart-wrap canvas { width: 100%; height: 100%; display: block; }

.legend { display: flex; align-items: center; gap: 12px; font-size: 10px; color: var(--text-mute); }
.dot { display: inline-block; width: 8px; height: 3px; border-radius: 2px; margin-right: 4px; vertical-align: middle; }
.dot.blue { background: var(--accent); }
.dot.red { background: #f04b5c; }
.dot.amber { background: #f59e0b; }

/* 控制台 */
/* 高度紧张时允许卡片内部滚动，避免按钮被裁 */
.control-card { padding-bottom: 10px; overflow-y: auto; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--text-dim);
  font-family: inherit;
  font-size: 12px;
  padding: 6px 12px;
  border-radius: 8px;
  cursor: pointer;
  transition: background .15s, border-color .15s, color .15s;
}
.btn:hover { background: var(--panel-soft); color: var(--text); border-color: #d7dee9; }
.btn:active { transform: translateY(.5px); }

.btn.primary {
  margin: 10px 14px 2px;
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  font-weight: 500;
  box-shadow: 0 1px 3px rgba(37, 99, 235, .25);
}
.btn.primary:hover { background: #1d4fd8; border-color: #1d4fd8; }
.btn.primary.is-paused { background: var(--ok); border-color: var(--ok); box-shadow: none; }
.btn.primary.is-paused:hover { background: #0b8a63; border-color: #0b8a63; }

.ctrl { padding: 6px 14px 0; }
.ctrl-row { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 4px; }
.ctrl-row span { font-size: 11.5px; color: var(--text-dim); }
.ctrl-row output { font-size: 11px; color: var(--accent); font-family: var(--mono); }

input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  display: block;
  width: 100%;
  height: 12px;
  background: transparent;
  cursor: pointer;
}
input[type="range"]::-webkit-slider-runnable-track {
  height: 4px;
  border-radius: 2px;
  background: var(--line);
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 13px; height: 13px;
  margin-top: -4.5px;
  border-radius: 50%;
  background: #fff;
  border: 2px solid var(--accent);
  box-shadow: 0 1px 3px rgba(16, 24, 40, .2);
}
input[type="range"]::-moz-range-track { height: 4px; border-radius: 2px; background: var(--line); }
input[type="range"]::-moz-range-thumb {
  width: 11px; height: 11px; border: 2px solid var(--accent);
  border-radius: 50%; background: #fff; cursor: pointer;
}

.ctrl-actions { display: flex; gap: 8px; padding: 8px 14px 0; }
.ctrl-actions .btn { flex: 1; }

/* 事件表 */
.filters { display: flex; gap: 4px; margin-left: 4px; }
.chip {
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--text-mute);
  font-family: inherit;
  font-size: 11px;
  padding: 3px 11px;
  border-radius: 20px;
  cursor: pointer;
}
.chip:hover { color: var(--text-dim); background: var(--panel-soft); }
.chip.active { color: var(--accent); border-color: #c3d9fb; background: var(--accent-soft); }

.table-wrap { flex: 1; overflow-y: auto; min-height: 0; position: relative; }

table { width: 100%; border-collapse: collapse; font-size: 12px; }
thead th {
  position: sticky; top: 0; z-index: 1;
  background: var(--panel-soft);
  text-align: left;
  font-weight: 500;
  font-size: 10.5px;
  color: var(--text-mute);
  letter-spacing: .3px;
  padding: 8px 14px;
  border-bottom: 1px solid var(--line);
  white-space: nowrap;
}
tbody td {
  padding: 8px 14px;
  border-bottom: 1px solid var(--line-soft);
  color: var(--text-dim);
  white-space: nowrap;
}
tbody tr { transition: background .12s; }
tbody tr:hover { background: var(--panel-soft); }
tbody tr.is-new { animation: rowIn 1.6s ease-out; }
@keyframes rowIn {
  0% { background: rgba(37, 99, 235, .09); }
  100% { background: transparent; }
}

td.t-time, td.t-mileage, td.t-conf { font-variant-numeric: tabular-nums; }
td.t-time { color: var(--text-mute); }
td.t-type { color: var(--text); font-weight: 500; }
td.t-board { color: var(--text-mute); }

.lvl {
  display: inline-block;
  font-size: 10.5px;
  padding: 1px 8px;
  border-radius: 4px;
  font-weight: 500;
}
.lvl.critical { color: var(--crit); background: var(--crit-soft); }
.lvl.warning { color: var(--warn); background: var(--warn-soft); }
.lvl.info { color: var(--accent); background: var(--accent-soft); }

.state-btn {
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--text-mute);
  font-family: inherit;
  font-size: 10.5px;
  padding: 2px 10px;
  border-radius: 5px;
  cursor: pointer;
}
.state-btn:hover { color: var(--text-dim); border-color: #cfd8e5; }
.state-btn.done { color: var(--ok); border-color: #bfe8da; background: var(--ok-soft); cursor: default; }

.empty {
  position: absolute; inset: 0;
  display: grid; place-items: center;
  color: #c2cbd8;
  font-size: 12px;
  letter-spacing: .5px;
  pointer-events: none;
}
.empty.hide { display: none; }

/* ---------- 总览 ---------- */

.overview {
  height: 100%;
  display: grid;
  grid-template-rows: auto minmax(0, .95fr) minmax(0, 1.1fr);
  gap: 12px;
}

.ov-head {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 4px 6px;
}
.ov-kpis { display: flex; }
.kpi {
  flex: 1;
  padding: 12px 16px;
  border-right: 1px solid var(--line-soft);
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.kpi:last-child { border-right: 0; }
.kpi span { font-size: 11px; color: var(--text-mute); }
.kpi b { font-size: 20px; font-weight: 600; letter-spacing: -.2px; }
.kpi b.crit { color: var(--crit); }

.board-cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  min-height: 0;
}

.board-card {
  display: flex;
  flex-direction: column;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  box-shadow: var(--shadow);
  overflow: hidden;
  cursor: pointer;
  text-align: left;
  font-family: inherit;
  color: var(--text);
  transition: border-color .15s, box-shadow .15s, transform .15s;
  min-height: 0;
}
.board-card:hover {
  border-color: #c3d9fb;
  box-shadow: 0 4px 14px rgba(37, 99, 235, .1);
  transform: translateY(-1px);
}

.bc-cam { height: 56%; min-height: 90px; background: #0b1016; position: relative; overflow: hidden; }
.bc-cam canvas { position: absolute; inset: 0; width: 100%; height: 100%; }

.bc-body { flex: 1; padding: 12px 14px; display: flex; flex-direction: column; gap: 8px; min-height: 0; justify-content: space-between; }
.bc-title { display: flex; align-items: baseline; justify-content: space-between; }
.bc-title h3 { margin: 0; font-size: 14px; font-weight: 600; }
.bc-arrow { font-size: 11px; color: var(--accent); opacity: 0; transition: opacity .15s; }
.board-card:hover .bc-arrow { opacity: 1; }
.bc-desc { margin: 0; font-size: 11px; color: var(--text-mute); }

.bc-metrics { display: flex; gap: 16px; }
.bc-metrics > div { display: flex; flex-direction: column; gap: 1px; }
.bc-metrics span { font-size: 9.5px; color: var(--text-mute); }
.bc-metrics b { font-size: 13px; font-weight: 500; }

.bc-foot { margin-top: auto; display: flex; gap: 6px; }
.bc-foot .lvl { font-size: 10px; padding: 1px 7px; }

/* ---------- 滚动条 ---------- */

::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #d5dce6; border-radius: 4px; border: 2px solid var(--panel); }
::-webkit-scrollbar-thumb:hover { background: #c0cad8; }

/* ---------- 窄屏 ---------- */

@media (max-width: 1180px) {
  body { overflow: auto; }
  .run-info { display: none; }
  .sidebar { width: 64px; padding: 12px 8px; }
  .nav-label, .nav-item span, .sidebar-foot { display: none; }
  .nav-item { justify-content: center; padding: 10px 0; }
  .nav-item.active::before { display: none; }
  .main { padding: 10px; overflow: visible; }
  .board, .overview { height: auto; display: flex; flex-direction: column; }
  .board-top, .board-mid { grid-template-columns: 1fr; }
  .cam-stage { height: 260px; }
  .chart-wrap { height: 180px; }
  .board-cards { grid-template-columns: 1fr; }
  .bc-cam { height: 140px; }
  .events-card { min-height: 260px; }
  .ov-kpis { flex-wrap: wrap; }
  .kpi { flex: 1 1 45%; }
}