/* The potassium figure's colours on supp.tips. Lilac is potassium and amber is sodium (the colours of
   their flame tests); red is blood pressure. */
.fig-article {
  --bh-artery: #d0353a;
  --bh-vein: #2f56c9;
  --pk-k: #a77bf3;
  --pk-k-rim: #5b2db0;
  --pk-na: #f5b40a;
  --pk-na-rim: #8a5a00;
  --pk-here: #f3edff;
  --pk-bp: #b8323a;
}
.fig-article .a-key-s { border-color: var(--pk-bp); }
.fig-article .a-key-d { margin-left: 12px; border-color: var(--pk-bp); border-top-style: dashed; }
.fig-article .a-key-ncc { border-color: var(--pk-na-rim); }
.fig-article .a-key-na { margin-left: 12px; border-color: var(--bh-strong); border-top-style: dashed; }