:root {
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, sans-serif;
  color-scheme: light;
  --bg: #ffffff;
  --panel: #f0f0f0;
  --panel-2: #e4e4e4;
  --card: #ffffff;
  --line: #999999;
  --line-bright: #666666;
  --muted: #555555;
  --muted-2: #777777;
  --text: #1a1a1a;
  --text-bright: #000000;
  --accent: #4d7c0f;
  --accent-bright: #3d6b00;
  --accent-dim: rgba(77,124,15,.12);
  --ok: #2d7a1e;
  --ok-bright: #1b6b0a;
  --ok-dim: rgba(45,122,30,.12);
  --warn: #b88600;
  --warn-bright: #9a7000;
  --warn-dim: rgba(184,134,0,.12);
  --crit: #c0392b;
  --crit-bright: #a02818;
  --crit-dim: rgba(192,57,43,.12);
  --radius: 3px;
  --radius-sm: 2px;
  --transition: 120ms linear;
  --mono: 'IBM Plex Mono', ui-monospace, 'SF Mono', Menlo, monospace;
}

* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  -webkit-font-smoothing: antialiased;
}

/* ── Header ── */
header {
  min-height: 56px; padding: 10px 16px; display: flex; align-items: center; justify-content: space-between;
  border-bottom: 1px solid var(--line); gap: 16px; position: sticky; top: 0; z-index: 10;
  background: var(--panel);
}
.header-left { display: flex; align-items: center; gap: 10px; }
.header-icon {
  width: 36px; height: 36px; border: 1px solid var(--accent); border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center; color: var(--accent-bright);
  flex-shrink: 0; background: var(--accent-dim);
}
h1 {
  margin: 0 0 2px; font-size: 14px; font-weight: 700; letter-spacing: .04em;
  text-transform: uppercase; color: var(--text-bright);
}
.h1-sub { font-weight: 500; color: var(--muted); letter-spacing: .02em; }

.status { display: inline-flex; align-items: center; gap: 6px; font-size: 11px; color: var(--muted); font-weight: 600; text-transform: uppercase; letter-spacing: .06em; }
.status-dot {
  width: 7px; height: 7px; border-radius: 50%; background: var(--muted-2); flex-shrink: 0;
  transition: background var(--transition);
}
.status.connected { color: var(--ok-bright); }
.status.connected .status-dot { background: var(--ok-bright); animation: pulse 2s ease-in-out infinite; }
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: .4; } }

.controls { display: flex; align-items: end; gap: 6px; flex-wrap: wrap; }
.baud-label { display: grid; gap: 2px; font-size: 9px; color: var(--muted); font-weight: 600; text-transform: uppercase; letter-spacing: .08em; }
button, select {
  border: 1px solid var(--line-bright); background: var(--card); color: var(--text);
  border-radius: var(--radius-sm); padding: 7px 12px; font: inherit; font-size: 12px;
  font-weight: 600; text-transform: uppercase; letter-spacing: .04em;
  transition: all var(--transition);
}
select { cursor: pointer; padding-right: 24px; text-transform: none; font-family: var(--mono); font-size: 12px; }
select:hover { border-color: var(--accent); }
button {
  cursor: pointer; background: var(--accent); color: #ffffff; border-color: var(--accent);
  font-weight: 700;
}
button:hover { background: var(--accent-bright); border-color: var(--accent-bright); }
button:active { background: var(--accent); }
button.secondary { background: transparent; color: var(--text); border-color: var(--line-bright); }
button.secondary:hover { border-color: var(--accent); color: var(--accent-bright); background: var(--accent-dim); }

/* ── Main layout ── */
main {
  display: grid;
  grid-template-columns: 1.2fr .8fr;
  grid-template-rows: auto minmax(500px, 60vh) minmax(360px, auto);
  gap: 1px;
  padding: 1px;
  background: var(--line);
}
.panel {
  background: var(--panel); border: none; overflow: hidden; min-width: 0;
}
.panel-head {
  min-height: 38px; display: flex; align-items: center; justify-content: space-between; gap: 10px;
  padding: 0 14px; border-bottom: 1px solid var(--line);
  background: var(--panel-2);
}
.panel-head h2 {
  font-size: 11px; margin: 0; font-weight: 700; letter-spacing: .1em;
  text-transform: uppercase; color: var(--accent-bright);
}
.panel-head span, .check { color: var(--muted); font-size: 10px; font-family: var(--mono); }

.jammer-panel { grid-column: 1 / -1; grid-row: 1; }
.map-panel { grid-column: 1; grid-row: 2; }
.chart-panel { grid-column: 2; grid-row: 2; }
.event-panel { grid-column: 2; grid-row: 3; }
.latest-panel { grid-column: 1; grid-row: 3; }

/* ── Top status row ── */
.top-status-row {
  display: grid;
  grid-template-columns: minmax(280px, 1.5fr) minmax(260px, 1fr) minmax(280px, 1fr);
  gap: 1px;
  padding: 1px 1px 0;
  background: var(--line);
}
.timestamp-card, .coords-card, .baseline-status {
  border: none; background: var(--card); padding: 12px 14px;
}
.timestamp-value { font-size: 20px; font-weight: 600; font-family: var(--mono); font-variant-numeric: tabular-nums; color: var(--text-bright); letter-spacing: 0; }
.timestamp-secondary { margin-top: 3px; color: var(--muted); font-size: 11px; font-family: var(--mono); font-variant-numeric: tabular-nums; }
.coords-card { font-variant-numeric: tabular-nums; font-size: 14px; font-family: var(--mono); }
.coord-row { display: flex; align-items: center; gap: 8px; line-height: 1.7; }
.coord-label { display: inline-block; width: 22px; color: var(--muted); font-size: 10px; font-weight: 600; text-transform: uppercase; letter-spacing: .06em; font-family: Inter, sans-serif; }
.baseline-status { display: flex; align-items: center; gap: 8px; color: var(--muted); font-size: 11px; font-family: var(--mono); }
.baseline-icon { color: var(--muted-2); flex-shrink: 0; display: flex; }
.baseline-status.ready { color: var(--ok-bright); background: var(--ok-dim); }
.baseline-status.ready .baseline-icon { color: var(--ok-bright); }

/* ── Metric cards ── */
.metric-cards {
  display: grid;
  grid-template-columns: 1.4fr 1.2fr repeat(4, 1fr);
  gap: 1px;
  padding: 1px;
  background: var(--line);
}
.metric-card {
  background: var(--card); padding: 12px 14px; min-width: 0; position: relative; overflow: hidden;
  border-left: 2px solid transparent;
}
.metric-card.primary { border-left-color: var(--accent); }
.metric-card.secondary-metric { opacity: .6; }
.metric-name { color: var(--muted); font-size: 9px; margin-bottom: 6px; font-weight: 600; text-transform: uppercase; letter-spacing: .1em; }
.metric-value { font-size: 22px; line-height: 1.1; font-weight: 600; font-family: var(--mono); overflow-wrap: anywhere; font-variant-numeric: tabular-nums; color: var(--text-bright); letter-spacing: -.01em; }
.metric-detail { margin-top: 5px; min-height: 26px; color: var(--muted); font-size: 10px; line-height: 1.35; }

/* JamState card — flat color-coded left border */
.jam-state-card { border-left-width: 3px; }
.jam-state-card .metric-value { font-size: 18px; }
.state-ok { border-left-color: var(--ok-bright) !important; background: linear-gradient(90deg, var(--ok-dim), transparent 40%); }
.state-warning { border-left-color: var(--warn-bright) !important; background: linear-gradient(90deg, var(--warn-dim), transparent 40%); }
.state-critical { border-left-color: var(--crit-bright) !important; background: linear-gradient(90deg, var(--crit-dim), transparent 40%); }
.state-unknown { border-left-color: var(--line-bright); }

.jamstate-key {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; border-top: 1px solid var(--line); background: var(--line);
}
.jamstate-key span { background: var(--panel-2); padding: 7px 12px; color: var(--muted); font-size: 10px; font-family: var(--mono); }
.jamstate-key b { color: var(--text); font-weight: 600; }

/* ── Map ── */
.map-panel { position: relative; }
#map { height: calc(100% - 38px); min-height: 440px; }
.map-head-right { display: flex; align-items: center; gap: 12px; font-variant-numeric: tabular-nums; }
.map-empty-state {
  position: absolute; top: 38px; left: 0; right: 0; bottom: 0;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  color: var(--muted-2); pointer-events: none; text-align: center; padding: 20px;
}
.map-empty-state svg { margin-bottom: 12px; opacity: .3; }
.map-empty-state p { margin: 0; font-size: 13px; font-weight: 600; text-transform: uppercase; letter-spacing: .06em; }
.map-empty-sub { font-size: 11px !important; font-weight: 400 !important; text-transform: none !important; letter-spacing: 0 !important; margin-top: 4px !important; max-width: 320px; font-family: var(--mono); }

/* ── Charts ── */
.charts-grid {
  height: calc(100% - 38px);
  min-height: 440px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: repeat(3, minmax(120px, 1fr));
  gap: 1px;
  padding: 1px;
  background: var(--line);
}
.charts-grid .mini-chart:first-child { grid-column: 1 / -1; }
.mini-chart {
  position: relative; min-height: 0; background: var(--card);
  padding: 2px 6px;
}

/* ── Latest fields ── */
.latest-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(145px, 1fr)); gap: 1px; padding: 1px; background: var(--line); }
.kv {
  background: var(--card); padding: 8px 10px;
}
.kv .k { color: var(--muted); font-size: 9px; margin-bottom: 3px; font-weight: 600; text-transform: uppercase; letter-spacing: .06em; }
.kv .v { font-size: 12px; overflow-wrap: anywhere; font-variant-numeric: tabular-nums; font-weight: 500; font-family: var(--mono); color: var(--text-bright); }

/* ── Events ── */
.events { max-height: 500px; overflow: auto; padding: 0; }
.events::-webkit-scrollbar { width: 4px; }
.events::-webkit-scrollbar-track { background: var(--panel-2); }
.events::-webkit-scrollbar-thumb { background: var(--line-bright); }
.empty-hint { color: var(--muted-2); font-size: 11px; text-align: center; padding: 24px 12px; font-family: var(--mono); }
.event {
  padding: 8px 12px; border-bottom: 1px solid var(--line);
  border-left-width: 3px; font-size: 12px; transition: background var(--transition);
}
.event:hover { background: rgba(77,124,15,.06); }
.event:last-child { border-bottom: none; }
.event-time { color: var(--accent-bright); font-weight: 600; margin-bottom: 2px; font-variant-numeric: tabular-nums; font-size: 10px; font-family: var(--mono); }
.event-title { font-weight: 600; margin-bottom: 2px; font-size: 12px; text-transform: uppercase; letter-spacing: .03em; }
.event-data { color: var(--muted); overflow-wrap: anywhere; font-size: 11px; line-height: 1.5; font-family: var(--mono); }
.event-data.coords { color: var(--muted-2); font-variant-numeric: tabular-nums; }
.event.state-ok { border-left-color: var(--ok-bright); }
.event.state-warning { border-left-color: var(--warn-bright); }
.event.state-critical { border-left-color: var(--crit-bright); }
.event.state-unknown { border-left-color: var(--muted-2); }

/* ── MapLibre popup ── */
.maplibregl-popup-content {
  background: #ffffff; color: #000000; border: 2px solid #333333;
  border-radius: var(--radius-sm); max-height: 300px; overflow: auto; box-shadow: 0 4px 16px rgba(0,0,0,.3);
  padding: 10px 12px; font-size: 11px; font-family: var(--mono);
}
.maplibregl-popup-close-button { color: var(--muted); font-size: 14px; padding: 4px 8px; }
.maplibregl-popup-close-button:hover { color: var(--text); }
.popup-time { margin-bottom: 6px; font-size: 12px; }
.popup-time b { color: var(--accent-bright); }

/* ── MapLibre controls ── */
.maplibregl-ctrl-attrib { background: rgba(255,255,255,.9); font-size: 9px; }
.maplibregl-ctrl-attrib a { color: var(--muted); }
.maplibregl-nav-control { background: #fff; border: 2px solid #333; border-radius: var(--radius-sm); }
.maplibregl-nav-control button { background: #fff; border-bottom: 1px solid #999; color: #333; border-radius: 0; }
.maplibregl-nav-control button:hover { background: var(--accent-dim); color: var(--accent-bright); }
.maplibregl-nav-control .maplibregl-ctrl-icon { filter: none; }

/* ── Car mode popup ── */
.map-panel.fullscreen .maplibregl-popup-content {
  font-size: 10px; padding: 8px 10px; max-width: 260px;
  background: rgba(255,255,255,.98);
}
.map-panel.fullscreen .maplibregl-popup-anchor-top .maplibregl-popup-tip { border-bottom-color: rgba(255,255,255,.98); }
.map-panel.fullscreen .maplibregl-popup-anchor-bottom .maplibregl-popup-tip { border-top-color: rgba(255,255,255,.98); }
.map-panel.fullscreen .maplibregl-popup-close-button { display: none; }

/* ── Icon button ── */
.icon-btn {
  display: inline-flex; align-items: center; justify-content: center;
  background: transparent; color: var(--muted); border: 1px solid var(--line-bright);
  border-radius: var(--radius-sm); padding: 5px; cursor: pointer; box-shadow: none;
  transition: all var(--transition); min-width: 32px; min-height: 32px;
}
.icon-btn:hover { color: var(--accent-bright); border-color: var(--accent); }
.icon-btn:active { background: var(--accent-dim); }

/* ── Car mode HUD ── */
.car-mode-hud {
  display: none; position: absolute; top: 0; left: 0; right: 0; bottom: 0;
  pointer-events: none; z-index: 5;
}
.map-panel.fullscreen .car-mode-hud { display: block; }
.map-panel.fullscreen .panel-head { display: none; }
.map-panel.fullscreen #map { height: 100%; }
.map-panel.fullscreen #mapEmpty { top: 0; }

.hud-top-bar {
  position: absolute; top: 10px; left: 10px; right: 10px;
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  pointer-events: auto;
}
.hud-status {
  display: flex; align-items: center; gap: 8px;
  background: rgba(255,255,255,.95); border: 2px solid #333;
  border-radius: var(--radius-sm); padding: 7px 12px;
  font-size: 13px; font-weight: 700; font-family: var(--mono); font-variant-numeric: tabular-nums;
  text-transform: uppercase; letter-spacing: .04em;
  color: #000;
}
.hud-status-dot {
  width: 9px; height: 9px; border-radius: 50%; background: var(--muted-2); flex-shrink: 0;
  transition: background var(--transition);
}
.hud-status-dot.state-ok { background: var(--ok-bright); }
.hud-status-dot.state-warning { background: var(--warn-bright); }
.hud-status-dot.state-critical { background: var(--crit-bright); animation: pulse 1s ease-in-out infinite; }
.hud-time {
  background: rgba(255,255,255,.95); border: 2px solid #333;
  border-radius: var(--radius-sm); padding: 7px 12px;
  font-size: 13px; font-weight: 600; font-family: var(--mono); font-variant-numeric: tabular-nums; color: #000;
  flex: 1; text-align: center; max-width: 220px;
}
.hud-exit { flex-shrink: 0; }

.hud-metrics {
  position: absolute; bottom: 10px; left: 10px; right: 10px;
  display: grid; grid-template-columns: repeat(6, 1fr); gap: 6px;
  pointer-events: auto;
}
.hud-metric {
  background: rgba(255,255,255,.95); border: 2px solid #333;
  border-radius: var(--radius-sm); padding: 7px 8px;
  text-align: center; min-width: 0;
}
.hud-metric-label { font-size: 8px; color: #555; font-weight: 600; text-transform: uppercase; letter-spacing: .08em; margin-bottom: 2px; }
.hud-metric-value { font-size: 16px; font-weight: 700; font-family: var(--mono); font-variant-numeric: tabular-nums; color: #000; }

.hud-coords {
  position: absolute; bottom: 70px; left: 10px;
  background: rgba(255,255,255,.95); border: 2px solid #333;
  border-radius: var(--radius-sm); padding: 5px 10px;
  font-size: 11px; font-weight: 600; font-family: var(--mono); font-variant-numeric: tabular-nums; color: #333;
  pointer-events: auto;
}

.hud-cluster-info {
  position: absolute; bottom: 70px; right: 10px;
  display: flex; align-items: center; gap: 5px;
  background: rgba(255,255,255,.95); border: 2px solid var(--accent);
  border-radius: var(--radius-sm); padding: 5px 10px;
  font-size: 10px; font-weight: 700; font-family: var(--mono); color: var(--accent-bright);
  text-transform: uppercase; letter-spacing: .04em;
  pointer-events: auto;
  animation: fadeIn 200ms linear;
}
@keyframes fadeIn { from { opacity: 0; transform: translateY(3px); } to { opacity: 1; transform: translateY(0); } }

/* ── Fullscreen map panel ── */
.map-panel.fullscreen {
  position: fixed; top: 0; left: 0; right: 0; bottom: 0; z-index: 9999;
  border-radius: 0; border: none; margin: 0; grid-column: auto; grid-row: auto;
  width: 100vw; height: 100vh;
}
.map-panel.fullscreen #map { height: 100%; min-height: 100vh; }

/* ── Responsive ── */
@media (max-width: 1200px) {
  .metric-cards { grid-template-columns: repeat(3, minmax(150px, 1fr)); }
  .top-status-row { grid-template-columns: 1fr 1fr; }
  .baseline-status { grid-column: 1 / -1; }
  .charts-grid { grid-template-columns: 1fr; grid-template-rows: repeat(5, minmax(90px, 1fr)); }
  .charts-grid .mini-chart:first-child { grid-column: auto; }
}
@media (max-width: 1000px) {
  main { display: block; }
  .panel { margin-bottom: 1px; min-height: 360px; }
  .latest-panel, .event-panel, .jammer-panel { min-height: auto; }
  .metric-cards, .top-status-row { grid-template-columns: 1fr 1fr; }
  .baseline-status { grid-column: 1 / -1; }
  .jamstate-key { grid-template-columns: 1fr 1fr; }
  .chart-panel { min-height: 650px; }
  .charts-grid { height: 600px; }
  .map-panel { min-height: 50vh; }
  #map { min-height: 50vh; }
  .jammer-panel .metric-detail { display: none; }
  .jamstate-key { font-size: 9px; }
  .hud-metrics { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 650px) {
  header { align-items: flex-start; flex-direction: column; padding: 8px 10px; }
  .header-icon { width: 32px; height: 32px; }
  .header-icon svg { width: 20px; height: 20px; }
  h1 { font-size: 13px; }
  .controls { width: 100%; gap: 4px; }
  .controls button, .controls select { flex: 1; min-height: 44px; font-size: 11px; padding: 8px 8px; }
  .baud-label { flex: 1; }
  .baud-label select { width: 100%; min-height: 44px; }

  main { padding: 0; gap: 0; }
  .panel { border-radius: 0; margin-bottom: 1px; }
  .panel-head { padding: 0 10px; min-height: 36px; }
  .panel-head h2 { font-size: 10px; }

  .metric-cards, .top-status-row, .jamstate-key { grid-template-columns: 1fr; }
  .baseline-status { grid-column: auto; }
  .charts-grid { grid-template-columns: 1fr; }
  .metric-value { font-size: 20px; }
  .timestamp-value { font-size: 17px; }

  .map-head-right { flex-wrap: wrap; gap: 6px; }
  .map-head-right .check { font-size: 10px; }

  .hud-metrics { grid-template-columns: repeat(2, 1fr); gap: 4px; }
  .hud-metric { padding: 5px 6px; }
  .hud-metric-value { font-size: 14px; }
  .hud-status { font-size: 12px; padding: 5px 8px; }
  .hud-time { font-size: 11px; padding: 5px 8px; max-width: 120px; }
  .hud-coords { font-size: 10px; bottom: 62px; }
  .hud-cluster-info { bottom: 62px; font-size: 9px; }
}

/* ── Touch-friendly ── */
@media (hover: none) and (pointer: coarse) {
  button, select, .icon-btn { min-height: 44px; }
  .check { min-height: 44px; display: inline-flex; align-items: center; gap: 6px; }
  .check input { width: 18px; height: 18px; }
  .event { padding: 12px; }
  .kv { padding: 10px 12px; }
  .kv .v { font-size: 13px; }
}