.nav-links {
  align-items: center;
}

.nav-lab {
  position: relative;
  display: flex;
  align-items: center;
}

.nav-lab::after {
  content: "";
  position: absolute;
  z-index: 1;
  top: 100%;
  left: 50%;
  width: max(100%, 296px);
  height: 12px;
  transform: translateX(-50%);
}

.nav-lab-home {
  color: var(--ink);
  font-weight: 500;
  white-space: nowrap;
}

.nav-lab.is-current .nav-lab-home {
  font-weight: 500;
}

.nav-lab-toggle {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  flex: none;
  margin-left: 3px;
  border: 0;
  border-radius: 6px;
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  transition: background .16s ease;
}

.nav-lab-toggle:hover,
.nav-lab-toggle:focus-visible,
.nav-lab.open .nav-lab-toggle {
  background: var(--soft, #f4f1e8);
}

.nav-lab-toggle::after {
  content: "";
  width: 6px;
  height: 6px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: rotate(45deg) translateY(-2px);
  transition: transform .18s ease;
}

.nav-lab.open .nav-lab-toggle::after,
.nav-lab:hover .nav-lab-toggle::after {
  transform: rotate(225deg) translate(-1px, -1px);
}

.nav-lab-menu {
  top: calc(100% + 10px);
  z-index: 2;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateX(-50%) translateY(-6px) scale(.98);
  transition: opacity .16s ease, transform .18s ease, visibility .16s;
}

.nav-lab-menu a.nav-lab-about {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 48px;
  margin: 0 0 7px;
  padding: 11px 13px;
  border: 1px solid var(--line, #e4ded1);
  border-radius: 8px;
  background: var(--soft, #f4f1e8);
  color: var(--ink);
  font-size: 13px;
  font-weight: 700;
}

.nav-lab-menu a.nav-lab-about::after {
  content: "\2192";
  margin-left: 16px;
  color: var(--sub, #6f695f);
  font-size: 16px;
  line-height: 1;
}

.nav-lab-menu a.nav-lab-about:hover,
.nav-lab-menu a.nav-lab-about:focus-visible,
.nav-lab-menu a.nav-lab-about[aria-current="page"] {
  border-color: var(--ink);
  background: var(--soft, #f4f1e8);
  color: var(--ink);
}

.nav-lab.open .nav-lab-menu,
.nav-lab:hover .nav-lab-menu,
.nav-lab:focus-within .nav-lab-menu {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateX(-50%);
}