/* SFMIX network map — subway-style night chart.
   Dark by design: Karl the Fog and the glowing links want a dark ground.
   Loaded by layouts/_default/network-map.html and the dev harness. */

:root {
  --nm-paper: #242c33;   /* land — neutral slate so the blue water reads */
  --nm-water: #12324e;
  --nm-ink: #0b3640;     /* popover header chrome (kept from the light theme) */
  --nm-road: #384956;
  --nm-road-casing: #17232d;
  --nm-text: #dfe9ef;
  --nm-panel: rgba(16, 27, 36, .92);
}

/* The map IS the page: fill everything under the sticky site header. */
#network-map {
  position: relative;
  width: 100%;
  height: calc(100vh - var(--header-height, 64px));
  min-height: 460px;
  background: var(--nm-water);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

/* --- station + device labels (HTML markers; MapLibre has no glyph server) --- */
.nm-label {
  font-weight: 600;
  color: var(--nm-text);
  white-space: nowrap;
  pointer-events: none;
  text-shadow: 0 1px 0 rgba(8, 17, 24, .95), 0 0 4px rgba(8, 17, 24, .9);
  transform: translateY(-2px);
}
.nm-label-site { font-size: 13px; }
.nm-label-site .nm-code { font-weight: 800; }
.nm-label-site .nm-name { font-weight: 500; opacity: .78; font-size: 11px; }
.nm-label-device { font-size: 11px; font-weight: 600; opacity: .9; text-align: center; }
.nm-label-box {
  background: rgba(18, 30, 40, .85);
  padding: 1px 7px;
  border-radius: 6px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, .4);
}
.nm-label-icao {
  font-size: 9px;
  font-weight: 600;
  letter-spacing: .5px;
  color: #64798a;
  text-shadow: 0 1px 0 rgba(8, 17, 24, .8);
}
.nm-label-deco {
  font-family: Georgia, "Times New Roman", serif;
  font-style: italic;
  font-size: 15px;
  color: #8fb4c4;
  opacity: .75;
  letter-spacing: .5px;
}

/* --- popover (stays a light card — readable against the dark chart) --- */
.maplibregl-popup.nm-popup .maplibregl-popup-content {
  padding: 0;
  border-radius: 10px;
  box-shadow: 0 6px 24px rgba(0, 0, 0, .5);
  overflow: hidden;
  font-family: system-ui, sans-serif;
}
.nm-pop { min-width: 208px; }
.nm-pop-head {
  background: var(--nm-ink);
  color: #fff;
  padding: 8px 12px;
  font-weight: 700;
  font-size: 13px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.nm-pop-body { padding: 10px 12px; font-size: 12.5px; color: #23343a; }
.nm-pop-row { display: flex; justify-content: space-between; gap: 14px; margin: 3px 0; }
.nm-pop-row .k { color: #6c7f85; }
.nm-pop-row .v { font-weight: 600; font-variant-numeric: tabular-nums; }
.nm-chip {
  display: inline-block;
  padding: 1px 7px;
  border-radius: 10px;
  font-size: 11px;
  font-weight: 700;
  color: #fff;
}
.nm-chip-offline { background: #8a949a; }
.nm-spark { margin-top: 8px; }
.nm-spark svg { display: block; width: 100%; height: 40px; }
.nm-badge-approx {
  font-size: 10.5px; font-weight: 600; color: #7a715a;
  background: #efe7cf; padding: 1px 6px; border-radius: 8px;
}

/* --- legend --- */
#nm-legend {
  position: absolute;
  left: 12px;
  bottom: 12px;
  z-index: 3;
  background: var(--nm-panel);
  border: 1px solid rgba(255, 255, 255, .12);
  border-radius: 10px;
  padding: 10px 12px;
  font-size: 12px;
  color: var(--nm-text);
  max-width: 240px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, .35);
}
#nm-legend h4 { margin: 0 0 6px; font-size: 12px; text-transform: uppercase; letter-spacing: .5px; }
.nm-ramp { height: 10px; border-radius: 5px; margin: 4px 0 2px;
  background: linear-gradient(90deg, #5794F2 0%, #73BF69 25%, #FADE2A 50%, #FF9830 75%, #F2495C 100%); }
.nm-ramp-labels { display: flex; justify-content: space-between; font-size: 10px; color: #93a6b0; }
.nm-legend-key { display: flex; align-items: center; gap: 6px; margin-top: 6px; font-size: 11px; }
.nm-legend-key .swatch { width: 22px; height: 0; border-top-width: 3px; border-top-style: solid; }
#nm-legend .nm-ts { margin-top: 8px; font-size: 10.5px; color: #7c909b; }
.nm-legend-toggle { display: none; }
#nm-status {
  position: absolute; right: 12px; top: 12px; z-index: 3;
  background: rgba(242, 73, 92, .92); color: #fff;
  padding: 4px 10px; border-radius: 8px; font-size: 12px; font-weight: 600;
  display: none;
}

@media (max-width: 640px) {
  #nm-legend.collapsed .nm-legend-body { display: none; }
  .nm-legend-toggle {
    display: inline-block; cursor: pointer; font-weight: 700;
    background: none; border: none; color: var(--nm-text); padding: 0; font-size: 12px;
  }
}