:root {
  --bg: #0d0f0c;
  --panel: #161915;
  --panel-2: #1c211a;
  --border: #3a4a2a;
  --accent: #8fb339;
  --accent-dim: #6b8a2b;
  --text: #e5e5db;
  --text-dim: #9a9a8a;
  --off: #565a50;
  --danger: #d1603a;
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --panel-w: 280px;
  --header-h: 52px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  overflow: hidden;
}

/* ---- Header ---- */
#header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--header-h);
  background: linear-gradient(180deg, #12150f 0%, #0d0f0c 100%);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 16px;
  z-index: 1000;
  gap: 14px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
}
.brand svg { display: block; color: var(--accent); }
.brand .title {
  font-weight: 800;
  letter-spacing: 0.14em;
  font-size: 14px;
  text-transform: uppercase;
}
.brand .title .sep { color: var(--accent); margin: 0 6px; }
.brand .title .sub { color: var(--text-dim); font-weight: 600; }

#header-status {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 18px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--text-dim);
}
#header-status .stat b { color: var(--text); font-weight: 600; }
.health-dot {
  display: inline-block;
  width: 8px; height: 8px;
  border-radius: 50%;
  margin-right: 6px;
  vertical-align: middle;
  background: var(--off);
}
.health-dot.ok { background: var(--accent); box-shadow: 0 0 6px var(--accent); }
.health-dot.bad { background: var(--danger); }

/* ---- Map ---- */
#map {
  position: fixed;
  top: var(--header-h);
  left: 0;
  right: var(--panel-w);
  bottom: 0;
  background: var(--bg);
}

/* ---- Side panel ---- */
#panel {
  position: fixed;
  top: var(--header-h);
  right: 0;
  bottom: 0;
  width: var(--panel-w);
  background: var(--panel);
  border-left: 1px solid var(--border);
  overflow-y: auto;
  padding: 14px 12px;
}
#panel h2 {
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin: 0 0 12px;
  font-weight: 700;
}

.machine-card {
  background: var(--panel-2);
  border: 1px solid #29321f;
  border-left: 3px solid var(--off);
  border-radius: 6px;
  padding: 10px 12px;
  margin-bottom: 10px;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
}
.machine-card:hover { background: #222a1c; }
.machine-card.on { border-left-color: var(--accent); }

.machine-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}
.machine-name {
  font-weight: 700;
  font-size: 14px;
  color: var(--text);
  line-height: 1.25;
  min-width: 0;
  flex: 1 1 auto;
}
.engine {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-dim);
  white-space: nowrap;
}
.engine .dot {
  width: 9px; height: 9px; border-radius: 50%;
  background: var(--off);
}
.engine.on .dot { background: var(--accent); box-shadow: 0 0 6px var(--accent); }
.engine.on { color: var(--accent); }

.machine-row {
  display: flex;
  justify-content: space-between;
  margin-top: 8px;
  font-size: 12px;
}
.machine-row .label { color: var(--text-dim); }
.machine-row .val {
  font-family: var(--mono);
  color: var(--text);
}
.machine-trail {
  margin-top: 8px;
  font-size: 12px;
  padding: 5px 8px;
  border-radius: 4px;
  background: #12160e;
  border: 1px solid #29321f;
}
.machine-trail .tname { color: var(--accent); font-weight: 600; }
.machine-trail.off .tname { color: var(--text-dim); }
.machine-meta {
  margin-top: 8px;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text-dim);
}

.empty {
  color: var(--text-dim);
  font-size: 13px;
  line-height: 1.5;
  padding: 20px 6px;
  text-align: center;
  border: 1px dashed #2b3320;
  border-radius: 6px;
}

/* ---- Leaflet dark tweaks ---- */
.leaflet-container { background: #0d0f0c; }
.leaflet-popup-content-wrapper {
  background: var(--panel);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 6px;
}
.leaflet-popup-tip { background: var(--panel); border: 1px solid var(--border); }
.leaflet-popup-content { margin: 10px 12px; font-size: 13px; line-height: 1.4; }
.leaflet-popup-content b { color: var(--accent); }
.leaflet-bar a, .leaflet-control-layers {
  background: var(--panel) !important;
  color: var(--text) !important;
  border-color: var(--border) !important;
}
.leaflet-bar a:hover { background: var(--panel-2) !important; }
.leaflet-control-layers-toggle {
  background-color: var(--panel) !important;
  filter: invert(1) brightness(1.4);
}
.leaflet-control-layers-expanded { padding: 8px 12px 8px 8px; }
.leaflet-control-layers label { color: var(--text) !important; }
.leaflet-control-layers-separator { border-top-color: var(--border) !important; }
.leaflet-control-attribution {
  background: rgba(13,15,12,0.7) !important;
  color: var(--text-dim) !important;
}
.leaflet-control-attribution a { color: var(--accent-dim) !important; }

.atv-marker-label {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 700;
  color: var(--text);
  text-shadow: 0 0 3px #000, 0 0 3px #000;
  white-space: nowrap;
}

/* Responsive: stack panel under map on narrow screens */
@media (max-width: 720px) {
  :root { --panel-w: 0px; }
  #panel {
    position: fixed;
    top: auto; bottom: 0; left: 0; right: 0;
    width: 100%;
    height: 45%;
    border-left: none;
    border-top: 1px solid var(--border);
  }
  #map { right: 0; bottom: 45%; }
}