button.bookmark-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 10px 20px;
  border: 1px solid #aabfba;
  border-radius: 8px;
  background: #fff;
  color: var(--ink, #172b38);
  font: inherit;
  font-size: 18px;
  line-height: 1.5;
  cursor: pointer;
}

button.bookmark-toggle[aria-pressed="true"] {
  background: #e5f2ef;
  border-color: var(--teal, #006b72);
  color: var(--teal, #006b72);
}

button.bookmark-toggle[aria-pressed="true"]:hover { background: #d8ebe6; }

.bookmark-undo {
  align-self: start;
  margin-block: .75rem;
  padding: clamp(.85rem, 2.5vw, 1.25rem);
  border: 1px solid #c9d9dc;
  border-radius: .45rem;
  background: #f3f8f7;
}

.bookmark-undo p { margin: 0 0 .45rem; }
.bookmark-undo button, .cti-guide .bookmark-toggle {
  scroll-margin-top: calc(var(--cti-shell-height, 142px) + 4rem);
  scroll-margin-bottom: 4rem;
}