/*
  Post-specific style
*/

@mixin btn-sharing-color($light-color, $important: false) {
  @if $important {
    color: var(--btn-share-color, $light-color) !important;
  } @else {
    color: var(--btn-share-color, $light-color);
  }
}

@mixin btn-post-nav {
  width: 50%;
  position: relative;
  border-color: var(--btn-border-color);
}

@mixin dot($pl: 0.25rem, $pr: 0.25rem) {
  content: "\2022";
  padding-left: $pl;
  padding-right: $pr;
}

%text-color {
  color: var(--text-color);
}

%preview-margin {
  margin: 0;
}

.preview-img {
  @include align-center;
  @extend %preview-margin;

  &:not(.no-bg) {
    img.lazyloaded {
      background: var(--img-bg);
    }
  }

  img {
    @extend %preview-margin;
    @extend %img-rounded;
  }
}

h1 + .post-meta {
  span + span::before {
    @include dot;
  }

  em {
    @extend %text-color;

    a {
      @extend %text-color;
    }
  }
}

.post-tail-wrapper {
  margin-top: 6rem;
  border-bottom: 1px double var(--main-border-color);
  font-size: 0.85rem;

  .post-tail-bottom a {
    color: inherit;
  }

  .license-wrapper {
    line-height: 1.2rem;

    > a {
      color: var(--text-color);

      &:hover {
        @extend %link-hover;
      }
    }

    span:last-child {
      font-size: 0.85rem;
    }
  } /* .license-wrapper */

  .post-meta a:not(:hover) {
    @extend %link-underline;
  }

  .share-wrapper {
    vertical-align: middle;
    -webkit-user-select: none;
    -moz-user-select: none;
    user-select: none;

    .share-icons {
      font-size: 1.2rem;

      > i {
        position: relative;
        bottom: 1px;

        @extend %cursor-pointer;

        &:hover {
          @extend %btn-share-hovor;
        }
      }

      a {
        &:not(:last-child) {
          margin-right: 0.25rem;
        }

        &:hover {
          text-decoration: none;

          >i {
            @extend %btn-share-hovor;
          }
        }
      }

      .fab {
        &.fa-twitter {
          @include btn-sharing-color(rgba(29, 161, 242, 1));
        }

        &.fa-facebook-square {
          @include btn-sharing-color(rgb(66, 95, 156));
        }

        &.fa-telegram {
          @include btn-sharing-color(rgb(39, 159, 217));
        }

        &.fa-linkedin {
          @include btn-sharing-color(rgb(0, 119, 181));
        }

        &.fa-weibo {
          @include btn-sharing-color(rgb(229, 20, 43));
        }
      }
    } /* .share-icons */

    .fas.fa-link {
      @include btn-sharing-color(rgb(171, 171, 171));
    }
  } /* .share-wrapper */
}

.post-tags {
  line-height: 2rem;
}

.post-navigation {
  padding-top: 3rem;
  padding-bottom: 4rem;

  .btn {
    @include btn-post-nav;

    color: var(--link-color);

    &:hover {
      background: #2a408e;
      color: #ffffff;
      border-color: #2a408e;
    }

    &.disabled {
      @include btn-post-nav;

      pointer-events: auto;
      cursor: not-allowed;
      background: none;
      color: gray;

      &:hover {
        border-color: none;
      }
    }

    &.btn-outline-primary.disabled:focus {
      box-shadow: none;
    }

    &::before {
      color: var(--text-muted-color);
      font-size: 0.65rem;
      text-transform: uppercase;
      content: attr(prompt);
    }

    &:first-child {
      border-top-right-radius: 0;
      border-bottom-right-radius: 0;
      left: 0.5px;
    }

    &:last-child {
      border-top-left-radius: 0;
      border-bottom-left-radius: 0;
      right: 0.5px;
    }
  }

  p {
    font-size: 1.1rem;
    line-height: 1.5rem;
    margin-top: 0.3rem;
    white-space: normal;
  }
} /* .post-navigation */

@-webkit-keyframes fade-up {
  from {
    opacity: 0;
    position: relative;
    top: 2rem;
  }

  to {
    opacity: 1;
    position: relative;
    top: 0;
  }
}

@keyframes fade-up {
  from {
    opacity: 0;
    position: relative;
    top: 2rem;
  }

  to {
    opacity: 1;
    position: relative;
    top: 0;
  }
}

#toc-wrapper {
  border-left: 1px solid rgba(158, 158, 158, 0.17);
  position: -webkit-sticky;
  position: sticky;
  top: 4rem;
  transition: top 0.2s ease-in-out;
  -webkit-animation: fade-up 0.8s;
  animation: fade-up 0.8s;
}

#toc {
  ul.nav.navbar-nav {
    margin: 0.5rem 0;
    padding: 0;

    li {
      padding-top: 2px;
      padding-bottom: 2px;
    }
  }
}

nav[data-toggle="toc"] {
  .nav {
    .nav > li > a.active {
      font-weight: 600 !important;
    }
  }
}

/* --- Related Posts --- */

#related-posts {
  > h3 {
    @include label(1.1rem, 600);
  }

  em {
    @extend %normal-font-style;

    color: var(--relate-post-date);
  }

  p {
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
  }

  a:hover {
    text-decoration: none;
  }

  .card {
    border-color: var(--card-border-color);
    background-color: var(--card-bg);
    box-shadow: 0 0 5px 0 var(--card-box-shadow);
    transition: all 0.3s ease-in-out;

    h3 {
      @extend %text-color;
    }

    &:hover {
      -webkit-transform: translate3d(0, -3px, 0);
      transform: translate3d(0, -3px, 0);
      box-shadow: 0 10px 15px -4px rgba(0, 0, 0, 0.15);
    }
  }
}

#tail-wrapper {
  min-height: 2rem;

  > div:last-of-type {
    margin-bottom: 2rem;
  }

  #disqus_thread { /* stylelint-disable-line selector-id-pattern */
    min-height: 8.5rem;
  }
}

%btn-share-hovor {
  color: var(--btn-share-hover-color) !important;
}

.share-label {
  @include label(inherit, 400, inherit);

  &::after {
    content: ":";
  }
}

@media all and (max-width: 576px) {
  .preview-img[data-src] {
    margin-top: 2.2rem;
  }

  .post-tail-bottom {
    flex-wrap: wrap-reverse !important;

    > div:first-child {
      width: 100%;
      margin-top: 1rem;
    }
  }
}

@media all and (max-width: 768px) {
  .post-content > p > img {
    max-width: calc(100% + 1rem);
  }
}

/* Hide SideBar and TOC */
@media all and (max-width: 849px) {
  .post-navigation {
    padding-left: 0;
    padding-right: 0;
    margin-left: -0.5rem;
    margin-right: -0.5rem;
  }

  .preview-img[data-src] {
    max-width: 100vw;
    border-radius: 0;
  }
}