@mixin header--active {
  min-height: 0;
  color: #555;
  background: #fff;
  box-shadow: 1px 2px 10px rgba(0, 0, 0, 0.3);

  a {
    &:hover, &:focus {
      text-decoration: none;
    }
  }

  @include dark-mode {
    color: $body-color-dark;
  }
}

body.inner-page header {
  @include header--active;
}

header {
  color: white;
  padding: 0 3rem;
  position: fixed;
  top: -1px;
  left: -1px;
  right: -1px;

  z-index: 100;

  @media (max-width: 500px) {
    padding: 0.5rem 1rem 0;
    // position: static;
  }

  transition-property: min-height, background, box-shadow;
  transition-duration: 0.4s;
  background: none;

  // width: 100%;
  min-height: 100px;

  display: flex;
  align-items: center;
  justify-content: center;

  a {
    color: inherit;
    // transition: none;
    &:hover, &:focus {
      color: inherit;
      text-decoration: none;
    }
  }

  .top-brand {
    text-align: center;
    color: inherit;
    font-family: $font-brand;
    font-size: 2em;
    white-space: nowrap;
    transition: max-height 0.5s ease-out;
    overflow: hidden;

    @media (max-width: 500px) {
      font-size: 1.8em;
    }

    @include dark-mode {
      abbr {
        color: $primary;
      }
    }
  }

  &.active {
    @include header--active;

    @media (max-width: 500px) {
      .top-brand {
        max-height: 0;
      }

      .top-nav.aux-nav {
        display: none;
      }
    }
  }


  nav {
    flex: 1;

    display: flex;
    justify-content: space-between;
    align-items: center;

    @media (max-width: 800px) {
      flex-direction: column;
      // align-items: stretch; // uncomment after menu items are added back
    }

    @media (max-width: 500px) {
      font-size: 0.8rem;
    }

    @include dark-mode {
      a {
        color: inherit;

        &:hover {
          color: inherit;
          text-decoration: none;
        }
      }
    }
  }

  .top-nav {
    &.main-nav {
      margin-left: auto;
      order: 2;

      @media (max-width: 800px) {
        margin-left: 0;
      }
    }

    &.aux-nav {
      order: 3;

      @media (max-width: 800px) {
        order: 1;
      }
    }
  }

  .top-nav-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    list-style: none;
    margin: 0;
    padding: 0;


    .top-nav-item {
      transition-property: color, padding, margin;
      transition-duration: 0.3s;
      transition-timing-function: ease;

      display: block;
      padding: 0.5rem 1rem;
      text-align: center;
      border-top: 5px solid transparent;
      border-bottom: 5px solid transparent;
      white-space: nowrap;

      display: flex;
      align-items: center;

      &:hover {
        border-bottom: 5px solid $primary;
      }
    }

    .break {
      flex-basis: 100%;
      display: none;
    }

    @media (max-width: 1000px) {
      .top-nav-item {
        padding: 0.5rem 0.5rem;
      }
    }

    @media (max-width: 800px) {
      .top-nav-item {
        border-top: none;
      }
    }

    .dropdown-menu {
      max-height: 90vh;
      overflow: auto;
    }

    .dark-toggle {
      display: grid;

      > span {
        grid-column: 1;
        grid-row: 1;
        transition: all 0.5s;
        transition-behavior: allow-discrete;
      }

      .dark-toggle-sun {
        opacity: 1;
      }

      .dark-toggle-moon {
        opacity: 0;
      }

      @include dark-mode {
        .dark-toggle-sun {
          opacity: 0;
        }

        .dark-toggle-moon {
          opacity: 1;
        }
      }
    }
  }
}

body:not(.front-page) header + * {
  margin-top: $header-mobile-height;

  @media (min-width: 800px) {
    margin-top: $header-desktop-height;
  }
}

.disclaimer {
  $cwColor: darken($gray-100, 2%);

  border-bottom: 1px solid $gutter-border;

  > div {
    margin: 0 auto;
    max-width: 1200px;
    padding: 10px 1em;
    @media (max-width: 500px) {
      padding: 10px 1em;
    }
  }

  background-color: $cwColor;

  @include dark-mode {
    background-color: $gray-800;
    color: white;
    border-bottom: 1px solid $primary;
  }

  font-size: 0.8rem;
  font-weight: 300;

  .container {
    max-width: 600px;
  }

  .strong {
    display: block;
    font-weight: 600;
    margin: 5px -10px;
    padding: 0px 10px 5px;
    font-size: 1.2rem;
    font-family: $font-secondary;

    p { margin: 0; }
  }

  p:last-child {
    margin-bottom: 0;
  }
}