/* Replace branding/photo-watermark.png to change the mark everywhere.
   These values control the display layer; no photograph is modified. */
:root{
  --wm-watermark-image:url('branding/photo-watermark.png?v=3');
  --wm-watermark-opacity:.58;
  --wm-watermark-max-width:210;
  --wm-watermark-width-ratio:.38;
  --wm-watermark-aspect:2.483083;
}
.wm-watermark-static{position:relative}
.wm-photo-mark{
  position:absolute;
  display:block;
  background:var(--wm-watermark-image) center/contain no-repeat;
  opacity:var(--wm-watermark-opacity);
  pointer-events:none;
  user-select:none;
  z-index:3;
  filter:drop-shadow(0 1px 2px #0008);
}
.wm-photo-mark[hidden]{display:none}
.piece-thumbnail .wm-photo-mark,.piece-static-angles .wm-photo-mark{opacity:.35}
@media print{.wm-photo-mark{print-color-adjust:exact}}

/* The same brand mark stays legible on white linework sheets. */
.wm-photo-mark[data-tone="dark"]{filter:brightness(0);opacity:.48}