.page header {
  border: #005a9c solid 2px;
  background: #005a9c;
  color: white;
  text-align: center;
}

.page header .title {
  font-size: 2.5em;
  font-weight: bold;
  font-family: serif;
}

.page header .tagline {
  font-style: italic;
}

.page footer {
  border: #005a9c solid 2px;
  background: #005a9c;
  font-family: serif;
  color: white;
  font-style: italic;
  padding-left: 1em;
}

.page .body {
  display: grid;
  grid-template-columns: auto auto;
  border: #eee solid 2px;
}

.page .body nav {
  margin: 0;
  padding: 6px;
  width: 17em;
  height: 60em;
  background: #eee;
}

.page .body nav.focus {
  padding: 4px;
  border: 2px solid #005a9c;
}

.page .body .page {
  margin: 0.25em;
  padding: 0.25em;
  height: 30em;
}

.page .body .page h1 {
  margin: 0;
  padding: 0;
}

.page .main {
  padding: 1em;
}

.treeview-navigation ul,
.treeview-navigation li {
  margin: 0;
  padding: 0;
}

.treeview-navigation li li span.label {
  padding-left: 1em;
}

.treeview-navigation li li li span.label {
  padding-left: 2em;
}

.treeview-navigation[role="tree"] {
  margin: 0;
  padding: 0;
  list-style: none;
}

.treeview-navigation[role="tree"] li {
  margin: 0;
  padding: 0;
  list-style: none;
}

.treeview-navigation a[role="treeitem"] ul {
  margin: 0;
  padding: 0;
}

.treeview-navigation
  a[role="treeitem"][aria-expanded="false"]
  + [role="group"] {
  display: none;
}

.treeview-navigation a[role="treeitem"][aria-expanded="true"] + [role="group"] {
  display: block;
}

.treeview-navigation a[role="treeitem"] > span svg {
  transform: translate(0, 0);
}

.treeview-navigation a[role="treeitem"][aria-expanded="false"] > span svg {
  transform: rotate(270deg) translate(2px, 2px);
}

.treeview-navigation a[role="treeitem"] {
  margin: 0;
  padding: 4px;
  padding-left: 9px;
  text-decoration: none;
  color: #005a9c;
  border: none;
  display: block;
}

.treeview-navigation a[role="treeitem"][aria-current] {
  border-left: 5px solid #005a9c;
  padding-left: 4px;
  background-color: #ddd;
}

.treeview-navigation a[role="treeitem"] span.icon svg polygon {
  stroke-width: 2px;
  fill: currentcolor;
  stroke: transparent;
}

/* disable default keyboard focus styling for treeitems
   Keyboard focus is styled with the following CSS */

.treeview-navigation a[role="treeitem"]:focus {
  outline: 0;
  padding: 2px;
  padding-left: 7px;
  border: 2px #005a9c solid;
}

.treeview-navigation a[role="treeitem"][aria-current]:focus {
  padding-left: 4px;
  border-left-width: 5px;
}

.treeview-navigation a[role="treeitem"]:hover {
  background-color: #adddff;
  text-decoration: underline;
  padding-left: 4px;
  border-left: 5px solid #333;
}

.treeview-navigation a[role="treeitem"] span.icon:hover {
  color: #333;
}

.treeview-navigation a[role="treeitem"] span.icon svg polygon:hover {
  stroke: currentcolor;
}