#center-pane {
  width: 100%;
  overflow-y: auto;
  max-height: calc(100dvh - 72px);
  transition-property: margin, width;
  transition-duration: 0.15s;
  transition-timing-function: ease;
}
#center-pane #main-content-wrapper {
  width: 100%;
  height: 100%;
  padding-left: 0.75rem;
  padding-right: 0.75rem;
}
@media screen and (min-width: 768px) {
  #center-pane #main-content-wrapper {
    padding-left: 1rem;
    padding-right: 1rem;
  }
}
@media screen and (min-width: 1280px) {
  #center-pane #main-content-wrapper {
    padding-left: 1.5rem;
    padding-right: 1.5rem;
  }
}

#reader-left-sidebar a.keep {
  line-height: 2.5rem;
  padding: 0 1rem;
}
#reader-left-sidebar .collapsed-only {
  display: none;
}

#right-pane {
  width: 327px;
  max-width: 100%;
  margin-right: -327px;
  transition-property: margin-right;
  transition-duration: 0.15s;
  transition-timing-function: ease;
  position: fixed;
  right: 0;
  height: 100%;
}

#top-nav {
  width: 100%;
}

body {
  overflow: hidden;
}

main {
  display: flex;
}
main.active-search #main-content-wrapper {
  display: none;
}
main #left-pane {
  width: 5rem;
  overflow-y: auto;
  min-height: calc(100dvh - 80px);
  max-height: calc(100dvh - 80px);
  height: 100%;
  transition-property: width;
  transition-duration: 0.15s;
  transition-timing-function: ease;
}
main #left-pane .collapsable {
  display: none;
  overflow: hidden;
  white-space: nowrap;
}
main #left-pane .collapsable .flex {
  flex-wrap: nowrap;
}
main #left-pane .keep {
  padding-left: 0;
  padding-right: 0;
  flex-direction: column;
  padding-top: 0.5rem;
  padding-bottom: 0.5rem;
  width: 3.5rem;
  font-size: 0.75rem;
}
main #left-pane .keep svg {
  width: 1.5rem;
  height: 1.5rem;
}
main #left-pane div:has(.keep) {
  gap: 0.5rem;
}
@media screen and (min-width: 1024px) {
  main.active-left #left-pane {
    width: 14.25rem;
  }
  main.active-left #left-pane .collapsable {
    display: initial;
  }
  main.active-left #left-pane .collapsable.flex {
    display: flex;
  }
  main.active-left #left-pane .keep {
    padding-left: 1rem;
    padding-right: 1rem;
    padding-top: 0;
    padding-bottom: 0;
    flex-direction: row;
    width: unset;
    font-size: 1rem;
    line-height: 2.5rem;
  }
  main.active-left #left-pane .keep svg {
    width: 1.25rem;
    height: 1.25rem;
  }
  main.active-left #left-pane .collapsed-only {
    display: none;
  }
  main.active-left #left-pane div:has(.keep) {
    gap: 0.25rem;
  }
}
main.active-right #right-pane {
  margin-right: 0;
  z-index: 1000;
}
main.active-right #center-pane {
  margin-right: 327px;
  width: calc(100% - 327px);
}
@media (max-width: 576px) {
  main.active-right #center-pane {
    margin-left: -327px;
    width: 100%;
  }
}
main.active-right.active-left #center-pane {
  width: calc(100% - 327px - 18rem);
}

#reader-left-sidebar {
  max-height: 100dvh;
  min-width: 18rem;
}
#reader-left-sidebar::backdrop {
  background-color: rgba(255, 255, 255, 0.3);
}
#reader-left-sidebar div:has(.keep) {
  gap: 0.25rem;
}
#reader-left-sidebar div:has(.keep) svg {
  width: 1.25rem !important;
  height: 1.25rem !important;
}

#left-pane {
  padding: 0.75rem;
  padding-top: 0;
}

:is(#left-pane, #reader-left-sidebar) .left-content-item {
  color: #BEC7D5;
}

:is(#left-pane, #reader-left-sidebar) .left-content-item:hover,
:is(#left-pane, #reader-left-sidebar) .left-content-item.active {
  background-color: #14181F;
  color: white;
}

#left-pane::-webkit-scrollbar,
#center-pane::-webkit-scrollbar {
  width: 0.75rem;
}

#left-pane::-webkit-scrollbar {
  background-color: transparent;
}

#left-pane::-webkit-scrollbar-thumb {
  background-color: transparent;
}

#left-pane:hover::-webkit-scrollbar {
  background-color: #404040;
}

#left-pane:hover::-webkit-scrollbar-thumb {
  background-color: lightsteelblue;
}