:root {
  --bg: #f4f6fa;
  --panel: #ffffff;
  --panel-2: #f7f9fc;
  --panel-3: #eef2f7;
  --border: #e1e6ee;
  --border-hi: #c3ccdb;
  --text: #1a2230;
  --text-dim: #53607a;
  --muted: #8a94a6;
  --accent: #2d6cdf;
  --accent-hi: #1d5bcc;
  --ok: #0fa958;
  --warn: #cc7a00;
  --err: #d93a3a;
  --violet: #7a4cd6;
  --shadow: 0 2px 10px rgba(13, 30, 60, 0.07), 0 6px 28px rgba(13, 30, 60, 0.08);
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }
html, body { height: 100%; margin: 0; }
/* The [hidden] attribute needs to beat display:flex/grid from element-specific rules. */
[hidden] { display: none !important; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 13px;
  line-height: 1.45;
  -webkit-font-smoothing: antialiased;
  overflow: hidden;
}
button { font: inherit; color: inherit; }
input, select, textarea {
  font: inherit;
  color: var(--text);
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 5px;
  padding: 6px 10px;
  outline: none;
}
input:focus, select:focus, textarea:focus { border-color: var(--accent); }
.muted { color: var(--muted); font-size: 11.5px; }
.spacer { flex: 1; }

/* Layout */
#app {
  display: grid;
  grid-template-columns: 300px 1fr;
  height: 100%;
  min-height: 0;
  position: relative;
}
@media (max-width: 1280px) { #app { grid-template-columns: 260px 1fr; } }
@media (max-width: 1024px) { #app { grid-template-columns: 240px 1fr; } }

/* Mobile: sidebar becomes a slide-in drawer */
#mobile-menu-btn {
  display: none;
  position: fixed;
  top: 8px;
  left: 8px;
  z-index: 1100;
  width: 40px;
  height: 40px;
  font-size: 18px;
  background: var(--panel);
  box-shadow: var(--shadow);
}
#mobile-scrim {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.4);
  z-index: 999;
}

@media (max-width: 768px) {
  #app { grid-template-columns: 1fr; }
  #mobile-menu-btn { display: block; }
  #sidebar {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: min(300px, 85vw);
    z-index: 1000;
    transform: translateX(-100%);
    transition: transform 0.2s ease;
    box-shadow: 4px 0 20px rgba(13,30,60,0.15);
  }
  #app.sidebar-open #sidebar { transform: translateX(0); }
  #app.sidebar-open #mobile-scrim { display: block; }
  #main { grid-column: 1 / -1; }
  #map-toolbar { top: 54px; left: 8px; right: 8px; gap: 6px; }
  .toolbar-group { padding: 2px; }
  .tb-btn { padding: 8px 10px; font-size: 12px; min-height: 36px; }
  #playback-bar, #geofence-bar { left: 8px; right: 8px; bottom: 8px; padding: 10px 12px; }
  .pb-row input[type="datetime-local"] { min-width: 0; flex: 1; }
  #pb-scrub { min-width: 0; }
  .kpi-row { grid-template-columns: repeat(3, 1fr); gap: 6px; padding: 10px; }
  .k-val { font-size: 15px; }
  .flag-grid { grid-template-columns: 1fr; }
}
@media (max-width: 480px) {
  .brand h1 { font-size: 14px; }
  .k-val { font-size: 14px; }
  .detail-actions, .section, .kpi-row { padding-left: 10px; padding-right: 10px; }
  #video-header { padding: 6px 8px; }
  .chan-btn, #intercom-btn { padding: 8px 10px; font-size: 12px; min-height: 36px; }
}

/* Sidebar */
#sidebar {
  background: var(--panel);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  min-width: 0;
}
#sidebar > header {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
}
.brand h1 {
  font-size: 15px;
  margin: 0;
  font-weight: 600;
  letter-spacing: 0.2px;
}
.brand .sub {
  font-size: 11px;
  color: var(--muted);
  margin-top: 1px;
}

.sidebar-tabs {
  display: flex;
  border-bottom: 1px solid var(--border);
  background: var(--panel);
}
.tab {
  flex: 1;
  background: transparent;
  border: 0;
  padding: 10px 12px;
  cursor: pointer;
  color: var(--text-dim);
  font-size: 12.5px;
  border-bottom: 2px solid transparent;
  transition: color 0.1s, border-color 0.1s;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 6px;
}
.tab:hover { color: var(--text); }
.tab.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}
.badge {
  background: var(--err);
  color: #fff;
  border-radius: 10px;
  padding: 1px 6px;
  font-size: 10px;
  font-weight: 700;
  min-width: 18px;
  text-align: center;
}

.tab-panel { display: none; flex: 1; flex-direction: column; min-height: 0; }
.tab-panel.active { display: flex; }

.filter-bar {
  display: grid;
  grid-template-columns: 1fr 110px;
  gap: 6px;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
}
.filter-bar input, .filter-bar select { padding: 5px 8px; font-size: 12px; }

#device-list {
  flex: 1;
  overflow-y: auto;
}
.device {
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  transition: background 0.1s;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 4px 10px;
}
.device:hover { background: var(--panel-2); }
.device.active {
  background: var(--panel-2);
  box-shadow: inset 3px 0 0 var(--accent);
}
.device .name {
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  word-break: break-all;
}
.device .id {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--muted);
  margin-top: 2px;
}
.device .chip {
  align-self: start;
  padding: 2px 8px;
  border-radius: 10px;
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0.2px;
}
.chip.moving { background: rgba(63,207,142,0.15); color: var(--ok); }
.chip.idle   { background: rgba(242,184,82,0.15); color: var(--warn); }
.chip.offline{ background: rgba(109,122,144,0.18); color: var(--muted); }
.chip.no_gps { background: rgba(163,124,255,0.18); color: var(--violet); }
.device .meta {
  grid-column: 1 / -1;
  font-size: 11px;
  color: var(--text-dim);
  display: flex;
  gap: 10px;
  margin-top: 2px;
}
.device .meta b { color: var(--text); font-weight: 500; }

#alarm-feed {
  flex: 1;
  overflow-y: auto;
}
.alarm-item {
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 4px 10px;
}
.alarm-item .title {
  font-size: 12.5px;
  font-weight: 600;
  color: var(--err);
}
.alarm-item.warn .title { color: var(--warn); }
.alarm-item .info {
  font-size: 11px;
  color: var(--muted);
  grid-column: 1 / -1;
}
.alarm-item button {
  background: var(--panel-3);
  border: 1px solid var(--border);
  border-radius: 4px;
  font-size: 11px;
  padding: 3px 8px;
  cursor: pointer;
}
.alarm-item button:hover { border-color: var(--accent); color: var(--accent); }

#status-bar {
  padding: 8px 14px;
  border-top: 1px solid var(--border);
  font-size: 11px;
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: 8px;
}
.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--muted);
  transition: background 0.2s;
}
.status-dot.ok { background: var(--ok); box-shadow: 0 0 6px rgba(63,207,142,0.5); }
.status-dot.err { background: var(--err); }

/* Main area */
#main {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  min-width: 0;
  min-height: 0;
  height: 100%;
  overflow: hidden;
}

/* Default on all viewports: detail + video are absolute overlays on the right.
   The map stays full-width of #main so it never gets squeezed. On ultra-wide
   screens (>=1500px) both panels can be open side-by-side and still leave
   room; on smaller screens, opening Video while Detail is open hides Detail. */
#detail, #video-drawer {
  position: absolute;
  top: 0; right: 0; bottom: 0;
  z-index: 800;
  box-shadow: -6px 0 20px rgba(13,30,60,0.12);
}
#detail       { width: 340px; }
#video-drawer { width: min(520px, 85vw); }

/* Both panels open: stack detail to the left of video (ultra-wide only) */
@media (min-width: 1500px) {
  #main.detail-open.video-open #detail { right: min(520px, 85vw); }
}
/* Below ultra-wide: if both are open, hide detail so video gets the space */
@media (max-width: 1499px) {
  #main.detail-open.video-open #detail { display: none; }
}
@media (max-width: 900px) {
  #detail { width: min(320px, 88vw); }
  #video-drawer { width: 95vw; }
}
@media (max-width: 768px) {
  #detail, #video-drawer { width: 100vw; }
}

#map-wrap {
  position: relative;
  min-width: 0;
  grid-column: 1 / 2;
}
#map {
  position: absolute;
  inset: 0;
  background: #eef2f7;
}
.leaflet-container {
  font-family: inherit;
  background: #eef2f7;
}

#map-toolbar {
  position: absolute;
  top: 12px;
  left: 12px;
  right: 12px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  pointer-events: none;
  z-index: 600;
}
.toolbar-group {
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(8px);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 4px;
  display: flex;
  gap: 2px;
  pointer-events: auto;
  box-shadow: var(--shadow);
}
.tb-btn {
  background: transparent;
  border: 0;
  border-radius: 4px;
  padding: 6px 10px;
  color: var(--text-dim);
  cursor: pointer;
  font-size: 12px;
  transition: background 0.1s, color 0.1s;
}
.tb-btn:hover { background: var(--panel-3); color: var(--text); }
.tb-btn.active { background: var(--accent); color: #fff; }
.tb-btn.primary { background: var(--accent); color: #fff; }
.tb-btn.primary:hover { background: var(--accent-hi); }
.tb-btn:disabled { opacity: 0.4; cursor: not-allowed; }

#playback-bar, #geofence-bar {
  position: absolute;
  bottom: 20px;
  left: 60px;
  right: 60px;
  max-width: 820px;
  margin: 0 auto;
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 16px;
  z-index: 650;
  box-shadow: var(--shadow);
}
.pb-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}
.pb-row + .pb-row { margin-top: 10px; }
.pb-row label { font-size: 11.5px; color: var(--muted); white-space: nowrap; }
.pb-row input[type="datetime-local"] { padding: 4px 8px; font-size: 12px; min-width: 170px; }
#pb-scrub { flex: 1; min-width: 200px; }
#geofence-bar { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; }

/* Detail panel */
#detail {
  background: var(--panel);
  border-left: 1px solid var(--border);
  overflow-y: auto;
  overflow-x: hidden;
  min-width: 0;
  min-height: 0;
  height: 100%;
}
#detail-header {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  gap: 10px;
  align-items: flex-start;
}
#detail-header h2 {
  margin: 0;
  font-size: 15px;
  font-weight: 600;
  word-break: break-all;
}
.icon-btn {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-dim);
  border-radius: 4px;
  width: 26px;
  height: 26px;
  cursor: pointer;
  font-size: 15px;
  line-height: 1;
  padding: 0;
}
.icon-btn:hover { border-color: var(--border-hi); color: var(--text); }

.detail-actions {
  padding: 10px 14px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
  border-bottom: 1px solid var(--border);
}
.act-btn {
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 5px;
  padding: 8px;
  cursor: pointer;
  color: var(--text);
  font-size: 12px;
  transition: background 0.1s, border-color 0.1s;
}
.act-btn:hover { background: var(--panel-3); border-color: var(--border-hi); }
.act-btn.primary { background: var(--accent); border-color: var(--accent); }
.act-btn.primary:hover { background: var(--accent-hi); border-color: var(--accent-hi); }

.kpi-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  padding: 14px;
  gap: 8px;
  border-bottom: 1px solid var(--border);
}
.kpi {
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 5px;
  padding: 10px 12px;
  text-align: center;
}
.k-label { font-size: 10.5px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.5px; }
.k-val { font-size: 18px; font-weight: 600; margin-top: 2px; font-variant-numeric: tabular-nums; }

.section { padding: 12px 16px; border-bottom: 1px solid var(--border); }
.section h3 {
  margin: 0 0 8px 0;
  font-size: 11px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.6px;
  font-weight: 600;
}
.flag-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px 10px;
}
.flag {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 11.5px;
  padding: 3px 0;
}
.flag .pip {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--muted);
  flex-shrink: 0;
}
.flag.on .pip { background: var(--ok); box-shadow: 0 0 4px rgba(63,207,142,0.6); }
.flag.bad .pip { background: var(--err); box-shadow: 0 0 4px rgba(239,83,80,0.6); }
.flag.warn .pip { background: var(--warn); }
.empty-soft:empty::before {
  content: "None";
  color: var(--muted);
  font-size: 11.5px;
  font-style: italic;
}
.flag-empty {
  color: var(--muted);
  font-size: 11.5px;
  font-style: italic;
  grid-column: 1 / -1;
}
.empty {
  padding: 24px;
  text-align: center;
  color: var(--muted);
  font-size: 12px;
}

.kv {
  width: 100%;
  border-collapse: collapse;
  font-size: 11.5px;
  font-family: var(--mono);
}
.kv td {
  padding: 3px 0;
  border-bottom: 1px solid var(--border);
}
.kv td:first-child { color: var(--muted); padding-right: 8px; white-space: nowrap; }
.kv td:last-child { text-align: right; }

/* Video drawer */
#video-drawer {
  background: #000;
  border-left: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  min-width: 0;
  overflow: hidden;
}
#video-header {
  padding: 8px 12px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}
#video-title { font-size: 13px; font-weight: 600; flex-shrink: 0; }
.chan-picker { display: flex; gap: 4px; flex: 1; }
.chan-btn {
  background: var(--panel-3);
  border: 1px solid var(--border);
  color: var(--text-dim);
  padding: 4px 10px;
  font-size: 11.5px;
  border-radius: 4px;
  cursor: pointer;
  white-space: nowrap;
}
.chan-btn:hover { color: var(--text); border-color: var(--border-hi); }
.chan-btn.active {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}
#video-container {
  flex: 1;
  position: relative;
  background: #000;
  display: flex;
  align-items: center;
  justify-content: center;
}
#video-el {
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: #000;
}
.overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--muted);
  font-size: 13px;
  background: rgba(0,0,0,0.7);
  pointer-events: none;
}
.overlay.hidden { display: none; }
.overlay.err { color: var(--err); }

#intercom-audio { display: none; }

/* Floating intercom panel — appears bottom-center over the map. */
#intercom-panel {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  width: min(360px, calc(100vw - 24px));
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  box-shadow: var(--shadow);
  z-index: 900;
  overflow: hidden;
  user-select: none;
}
#intercom-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  background: var(--panel-2);
}
#intercom-title { font-size: 13px; font-weight: 600; flex-shrink: 0; }
.intercom-badge {
  font-size: 10.5px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 10px;
  background: var(--panel-3);
  color: var(--muted);
  flex: 1;
}
.intercom-badge.live { background: rgba(15,169,88,0.15); color: var(--ok); }
.intercom-badge.connecting { background: rgba(242,184,82,0.15); color: var(--warn); }
.intercom-badge.err { background: rgba(217,58,58,0.15); color: var(--err); }
#intercom-body {
  padding: 18px 18px 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}
.ptt {
  width: 100%;
  background: var(--accent);
  color: #fff;
  border: 0;
  border-radius: 8px;
  padding: 18px 0;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  transition: background 0.1s, transform 0.05s;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}
.ptt:hover { background: var(--accent-hi); }
.ptt.talking {
  background: var(--err);
  transform: scale(0.98);
  animation: ptt-pulse 1s ease-in-out infinite;
}
.ptt-icon { font-size: 20px; }
.ptt-label { letter-spacing: 0.3px; }
.ptt-hint { font-size: 11px; color: var(--muted); text-align: center; }
.ptt-hint kbd {
  background: var(--panel-3);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 1px 5px;
  font-family: var(--mono);
  font-size: 10.5px;
}
@keyframes ptt-pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(217,58,58,0.4); }
  50%      { box-shadow: 0 0 0 8px rgba(217,58,58,0); }
}
@media (max-width: 768px) {
  #intercom-panel { bottom: 12px; width: calc(100vw - 20px); }
}

/* Marker styles (custom) */
.nc-marker {
  width: 28px;
  height: 28px;
  position: relative;
  transform: translate(-50%, -50%);
  pointer-events: auto;
}
.nc-marker .ring {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: var(--accent);
  opacity: 0.2;
  animation: pulse 2s ease-out infinite;
}
.nc-marker .arrow {
  position: absolute;
  inset: 5px;
  background: var(--accent);
  border: 2px solid #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 12px;
  line-height: 1;
  box-shadow: 0 2px 6px rgba(0,0,0,0.5);
  transition: background 0.2s;
}
.nc-marker.moving .arrow { background: var(--ok); }
.nc-marker.idle .arrow { background: var(--warn); }
.nc-marker.offline .arrow { background: var(--muted); }
.nc-marker.offline .ring { display: none; }
/* "stale" = last-known position, device temporarily has no fresh GPS fix. */
.nc-marker.stale .arrow { background: var(--muted); opacity: 0.8; }
.nc-marker.stale .ring { display: none; }
.nc-marker.stale .label { opacity: 0.8; font-style: italic; }
.nc-marker.no_gps { display: none; }
.nc-marker .label {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(255,255,255,0.98);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 4px;
  padding: 2px 6px;
  font-size: 10.5px;
  font-weight: 600;
  margin-top: 4px;
  white-space: nowrap;
  pointer-events: none;
  box-shadow: 0 1px 2px rgba(13,30,60,0.08);
}
@keyframes pulse {
  0%   { transform: scale(0.6); opacity: 0.6; }
  100% { transform: scale(2.0); opacity: 0; }
}

.leaflet-control-attribution {
  background: rgba(255,255,255,0.92) !important;
  color: var(--muted) !important;
  font-size: 10px !important;
}
.leaflet-control-attribution a { color: var(--text-dim) !important; }
/* Nudge Leaflet's bottom-left scale / bottom-right zoom out of the playback bar's way */
.leaflet-bottom.leaflet-left { bottom: 12px !important; left: 12px !important; }
.leaflet-bottom.leaflet-right { bottom: 12px !important; right: 12px !important; }

/* Dialog */
dialog {
  background: var(--panel);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 20px 24px;
  min-width: 360px;
  box-shadow: var(--shadow);
}
dialog::backdrop { background: rgba(0,0,0,0.55); }
dialog h3 { margin: 0 0 12px; font-size: 14px; }
dialog textarea { width: 100%; }
.dialog-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 14px; }

/* Toast */
#toast-root {
  position: fixed;
  top: 16px;
  right: 16px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  z-index: 10000;
  pointer-events: none;
}
.toast {
  background: var(--panel);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  padding: 10px 14px;
  border-radius: 5px;
  font-size: 12.5px;
  box-shadow: var(--shadow);
  min-width: 240px;
  animation: slide-in 0.18s ease-out;
  pointer-events: auto;
}
.toast.err { border-left-color: var(--err); }
.toast.ok  { border-left-color: var(--ok); }
@keyframes slide-in {
  from { transform: translateX(10px); opacity: 0; }
  to   { transform: translateX(0); opacity: 1; }
}

/* Scrollbar */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--border-hi); }