body > .underlay > header, body > .underlay > footer {

display: flex;

.site-logo {
  margin: 0;
  padding: 0;
  line-height: .5;
  font-size: 24px;
  font-weight: 600;
  white-space: nowrap;
  color: white;

  :link, :hover, :visited {
    color: inherit;
  }

  svg {
    height: 30px;
    vertical-align: middle;
  }

  @media screen and (min-width: $bigscreen-breakpoint) {
    margin-right: 100px;
  }
}
.social-links {
  > a {
    margin-left: 14px;
    font-size: 18px;

    &:first-child {
      margin-left: 0;
    }
  }
}

}

.underlay.header {

body > & {
  background: $header-background;

  > .hero {
    padding-top: 20px;
    color: white;

    > .text {
      position: relative;

      > .title {
        font-size: 44px;
        font-weight: 700;
        margin: 0 0 20px 0;
        line-height: 1.2;
      }
      > .desc {
        font-size: 20px;
        margin: 0 0 20px 0;
      }
      > .cta {  // Call to action.
        margin-top: 40px;

        .button {
          &:not(:first-child) {
            @include cta-button(rgba(white, 0.32), white);
          }
          &:first-child {
            @include cta-button(white, $primary-dark-color);
          }
          &:last-child {
            margin-right: 0;
          }
          &:only-child {
            @include cta-button($primary-dark-color, white);
          }
        }
      }
    }
  }
}
.site--hub.layout--software-index > & {
  padding-bottom: 2em;
  background: $hub-software--hero-background;
}
.site--hub.layout--blog-index > &,
.site--hub.layout--project-index > & {
  padding-bottom: 2em;
}
.site--hub.layout--spec-index > & {
  padding-bottom: 2em;
  background: $hub-specs--hero-background;
}
.site--hub.layout--home > & {
  padding-bottom: 2em;
  background: $main-background;
}
.site--project.layout--software-index > &,
.site--project.layout--spec-index > &,
.site--project.layout--blog-index > & {
  padding-bottom: 2em;
}
.site--project.layout--home > & {
  background: none;
}

.site--project.layout--home > & {
  > .hero {
    .text {
      margin-top: 1.5em;
      margin-bottom: 2em;
    }
  }
}

.site--hub.layout--home > & {
  > .hero {
    text-align: left;

    @media screen and (min-width: $bigscreen-breakpoint) {
      padding-bottom: 50px;
    }
  }
}

}

body > .underlay.footer {

background: rgba(black, 0.4);

}

body > .underlay > header {

padding-top: 26px;
padding-bottom: 26px;
z-index: 5;
// Higher than hero, otherwise Algolia search pop-up might have stuff over it

align-items: center;
flex-flow: row nowrap;
justify-content: space-between;

> button.hamburger {
  border: 0;
  background: transparent;
  font-size: inherit;
  z-index: 20;
  color: white;
}

> .hamburger-menu {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  transform: translateY(-100%);
  transition: transform .8s cubic-bezier(0.23, 1, 0.32, 1);
  color: white;

  height: 100vh;
  overflow: hidden;
  z-index: 10;
  background: rgba($primary-dark-color, 0.95);

  display: flex;
  flex-flow: column nowrap;
  align-items: center;
  justify-content: flex-start;

  .site-logo-container {
    margin-left: 2em;
    margin-top: 26px;
    align-self: flex-start;
  }

  > nav,
  > .social-links {
    a {
      &:link, &:visited, &:hover {
        font-size: 1.3em;
        color: white;
      }
    }
  }

  > nav {
    flex: 1;
    display: flex;
    flex-flow: column nowrap;
    align-items: flex-start;
    justify-content: flex-start;
    align-self: stretch;

    a.search {
      display: none;
    }
    .search-widget {
      margin-top: 2em;
      margin-bottom: 1em;
    }

    > * {
      margin: .25em;
      margin-left: 2em;
    }
    > .active {
      font-weight: bold;
    }
  }

  .social-links {
    margin-top: 1em;
    margin-bottom: 2em;
  }

  &.expanded {
    transform: translateY(0);
  }
}

> .top-menu > .search-widget,
> .hamburger-menu > nav > .search-widget {
  input[type=search] {
    padding: 6px 10px 6px 10px;
    border-radius: 1em;
    font-size: inherit;
    line-height: inherit;
    border: 0;
    color: white;
  }
}

> .top-menu {
  flex: 1;

  > :not(.search-widget) {
    display: inline-block;
    font-weight: 600;
    margin-right: 20px;
    padding: 6px 10px 6px 10px;
    white-space: nowrap;
  }
  > .search-widget {
    width: 0;
    display: none;
    position: relative;

    > * {
      flex: 1;
    }
  }
  &.with-expanded-search {
    > a {
      display: none;
    }
    > .search-widget {
      width: 90%;
      display: inline-flex;
    }
  }
}

> .top-menu,
> .social-links {
  color: white;
  display: none;
  white-space: nowrap;

  .active {
    background-color: rgba(black, 0.1);
  }
  a:link, a:visited, a:hover {
    color: white;
  }
}

@media screen and (min-width: $bigscreen-breakpoint) {
  justify-content: unset;

  > button.hamburger {
    display: none;
  }
  > .top-menu, > .social-links {
    display: block;
  }
}

}

body > .underlay > footer {

padding-top: 50px;
padding-bottom: 50px;

align-items: flex-start;
flex-flow: column nowrap;

color: white;

a:link, a:visited, a:hover {
  color: white;
}

.parent-hub-plug {
  .logo {
    display: block;
  }

  display: flex;
  flex-flow: row nowrap;
  align-items: center;
  white-space: nowrap;
  line-height: .5;
  opacity: 0.8;
  color: white;

  @media screen and (min-width: $bigscreen-breakpoint) {
    margin-right: 50px;
  }

  .label {
    margin-right: 20px;
    font-weight: 500;
  }
}

nav {
  display: flex;
  flex-flow: row wrap;

  > * {
    margin-right: 40px;
  }
}

.links {
  font-weight: bold;
  opacity: 0.8;
  margin-bottom: 1em;
}

.legal {
  font-size: 14px;

  flex: 1;
  display: flex;
  flex-flow: column nowrap;
  justify-content: space-around;

  margin-top: 1em;
  margin-bottom: 1em;

  .copyright {
    .copyright-head, .copyright-tail {
      white-space: nowrap;
    }
  }

  @media screen and (min-width: $widescreen-breakpoint) {
    flex-flow: row nowrap;

    nav {
      display: block;
    }
    .copyright {
      margin-right: 40px;
    }
  }
}

}