.footnotes {
  margin-top: 2em;
  font-size: 0.9em;
  @media print {
    display: block;
  }
  @media screen {
    display: none;
  }
}
.footnotes hr {
  margin: 2em 0 1em;
}
.footnotes h3 {
  margin-bottom: 1em;
}
.footnotes ol {
  padding-left: 1.5em;
  list-style: none;
}
.footnotes li {
  margin-bottom: 0.5em;
  position: relative;
}
.footnotes li::before {
  content: attr(data-number);
  position: absolute;
  left: -1.5em;
}
.footnote-ref {
  cursor: pointer;
  color: #0073aa;
}
.footnote-ref:hover {
  text-decoration: underline;
}
.footnote-popover {
  display: none;
  position: absolute;
  background: white;
  border: 1px solid #ddd;
  border-radius: 4px;
  padding: 15px;
  max-width: 320px;
  max-height: 150px;
  overflow-y: auto;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
  z-index: 1000;
  font-size: 0.9em;
}
.footnote-popover.active {
  display: block;
}
.footnote-popover p {
  margin: 0;
  line-height: 1.2;
  font-size: 0.9em;
}
.footnote-popover:after {
  content: "";
  position: absolute;
  bottom: -8px;
  left: 50%;
  margin-left: -8px;
  border-width: 8px 8px 0;
  border-style: solid;
  border-color: white transparent transparent;
}