.usa-sidenav {
  li.usa-sidenav__item {
    display: block;
    border-top: $border;

    ~ .usa-sidenav__item {
      margin-top: 0;
    }
  }

  > li.usa-sidenav__item:first-child {
    border-top: 0;
  }

  a {
    color: color("ink");
    border: 0;
    padding: 1rem 1.6rem 0.85rem 0;

    @include hover {
      background: transparent;
    }

    &.usa-current::after {
      display: none;
    }
  }

  &.book-tree {
    li.active {
      > a {
        font-weight: bold;
        color: $brightblue;
      }
    }
  }
}

.usa-sidenav__sublist a {
  padding-left: 2rem;
}

@include at-media-max('desktop') {
  .usa-sidenav {
    border: 0;
  }

  .usa-sidenav .usa-sidenav__item,
  .usa-sidenav .usa-sidenav__item li,
  .usa-sidenav .usa-sidenav__item .usa-sidenav__item, {
    border: 0;
  }
}