/* ── close button: always floating top-right of the modal ── */
#dart-close {
  position: absolute;
  top: 8px;
  right: 10px;
  z-index: 20;
  background: none;
  border: none;
  color: rgba(255, 255, 255, .5);
  font-size: 26px;
  cursor: pointer;
  line-height: 1;
  padding: 0 4px
}

#dart-close:hover {
  color: #fff
}

/* When header hidden, close adapts to light background */
#dart-box.hdr-hidden #dart-close {
  color: rgba(26, 26, 34, .35)
}

#dart-box.hdr-hidden #dart-close:hover {
  color: #1a1a22
}