body {
  margin: 0;
  overflow: hidden;
  background: #9cc3e6;
  font-family: sans-serif;
}

/* ---------- Panel de control ---------- */
#info {
  position: absolute;
  top: 10px;
  left: 10px;
  z-index: 2;
  max-width: calc(100vw - 44px);
  padding: 10px 12px;
  border-radius: 6px;
  background: #000a;
  color: #fff;
  font-size: 14px;
  line-height: 1.6;
}
select, input[type=text], button { font-size: 14px; padding: 2px 4px; }
#coords { width: 170px; }
#nivel, #hora { width: 150px; vertical-align: middle; }

/* Leyenda de colores por altura */
#leyenda { display: none; margin-top: 6px; }
#barra {
  width: 260px;
  height: 10px;
  border-radius: 3px;
  background: linear-gradient(to right,
    #1f5f3a 0%, #7fb069 18.2%, #e9d98b 45.5%, #a8794a 63.6%, #8a8a8a 81.8%, #ffffff 100%);
}
#marcas { position: relative; width: 260px; height: 14px; font-size: 11px; }
#marcas span { position: absolute; transform: translateX(-50%); white-space: nowrap; }
#marcas span:first-child { transform: none; }
#marcas span:last-child { left: auto !important; right: 0; transform: none; }

/* ---------- Etiquetas de lugares (puntos de interés) ---------- */
#etiquetas { position: absolute; inset: 0; pointer-events: none; overflow: hidden; }
.poi {
  position: absolute;
  display: flex;
  flex-direction: column;
  align-items: center;
  transform: translate(-50%, -100%);
}
.poi span {
  padding: 2px 7px;
  border-radius: 10px;
  background: #fffe;
  color: #222;
  font-size: 12px;
  white-space: nowrap;
  box-shadow: 0 1px 4px #0005;
}
.poi i { width: 2px; height: 16px; background: #fffc; }

/* ---------- Etiqueta del punto donde se hizo clic ---------- */
#etiqueta {
  position: absolute;
  z-index: 1;
  display: none;
  pointer-events: none;
  transform: translate(-50%, calc(-100% - 8px));
  padding: 6px 10px;
  border-radius: 6px;
  background: #fff;
  color: #222;
  font-size: 13px;
  line-height: 1.4;
  text-align: center;
  white-space: nowrap;
  box-shadow: 0 2px 8px #0005;
}
#etiqueta b { font-size: 16px; }

#creditos {
  position: absolute;
  right: 6px;
  bottom: 4px;
  color: #fffc;
  font-size: 11px;
  text-shadow: 0 0 3px #000;
  pointer-events: none;
}