/*
 * scale-bar.css — the scale ruler at the bottom centre (built by js/scale-bar.js).
 *
 * A ruler with ten divisions (the middle tick longer), semi-transparent so the map and stars
 * show through, readable on both the black space and the light 2D map. The line is on top with
 * the ticks hanging down from it, and the distance is written below. It reuses MapLibre's
 * `.maplibregl-ctrl-scale` class for its basic look and overrides the rest here.
 */

.maplibregl-ctrl-scale.scale-center {
  position: absolute;
  left: 50%;
  bottom: 12px;
  transform: translateX(-50%); /* centre it horizontally */
  z-index: 2;                  /* above the map canvases */
  pointer-events: none;        /* dragging over it still moves the map */
  box-sizing: border-box;      /* the width set from JS includes the side borders */
  margin: 0;
  /* Total height 26 px (top border 2 + padding 7 + line 16 + padding 1), the same as the
     coordinates and height panel (elevation-readout.css). The top padding keeps the text
     clear of the ticks. */
  padding: 7px 6px 1px;
  text-align: center;
  white-space: nowrap;
  background: rgba(255, 255, 255, 0.6);
  color: #33434d;
  border: 2px solid #33434d;
  border-bottom: none;
  border-radius: 3px 3px 0 0;
  font: 600 12px/16px system-ui, sans-serif;
  box-shadow: 0 0 0 2px rgba(0, 0, 0, 0.08);
}

/* Division ticks, hanging down from the top line. Their `left` is set from JS. */
.scale-center .tick {
  position: absolute;
  top: 0;
  width: 1px;
  height: 4px;
  background: #33434d;
  transform: translateX(-50%);
}

/* The half-way tick (0.5) is longer and thicker */
.scale-center .tick.mid {
  width: 2px;
  height: 7px;
}

/* Narrow screens: the coordinates and height panel (elevation-readout.css) does not fit beside
   the ruler, so the ruler goes up and the panel stays at the bottom. 46 px = the panel's
   12 px + its 26 px height + an 8 px gap. Keep the 680 px in step with elevation-readout.css. */
@media (max-width: 680px) {
  .maplibregl-ctrl-scale.scale-center {
    bottom: 46px;
  }
}