/**
 * skin Next style
 *
 * @author <a href="http://vanessa.b3log.org">Liyuan Li</a>
 * @version 0.1.1.0, Jan 18, 2018
*/
@import '../../../scss/basic';
@import '../../../scss/github';

// variable
$text-color: #555;
$text-hover-color: #222;
$transition: all .2s ease-in-out;

// reset
html {
  background-color: #f5f5f5;
  font-size: 14px;
  -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
}

body {
  color: $text-color;
  background-color: #fff;
  letter-spacing: 0.01rem;
  line-height: 1.75em;
  text-rendering: geometricPrecision;
}

::selection {
  background: #262a30;
  color: #fff;
}

.pipe-content__reset {
  pre > code {
    background-image: url(../../../images/code-bg.png);
  }
}

a {
  color: #222;
  border-bottom: 1px solid #ccc;
  transition: $transition;
}

a:hover {
  text-decoration: none;
  border-bottom-color: $text-hover-color;
}

// framework
@keyframes up {
  0% {
    transform: translateY(40px);
    opacity: 1;
  }

  100% {
    opacity: 1;
  }
}

@keyframes down {
  0% {
    transform: translateY(-40px);
    opacity: 1;
  }

  100% {
    opacity: 1;
  }
}

@keyframes downHalf {
  0% {
    transform: translateY(-10px);
    opacity: 1;
  }

  100% {
    opacity: 1;
  }
}

@keyframes downBig {
  0% {
    transform: translateY(-80px);
    opacity: 1;
  }

  100% {
    opacity: 1;
  }
}

.wrapper {
  max-width: 768px;
  margin: 0 auto;
  padding: 0 20px;
  box-sizing: border-box;
}

.main {
  position: relative;
  transition: $transition;
  & > .wrapper {
    animation: downBig .8s forwards;
    opacity: 0;
  }
}

.side {
  width: 320px;
  right: -320px;
  top: 0;
  box-shadow: inset 0 2px 6px #000;
  padding: 20px;
  color: #999;
  text-align: center;
  box-sizing: border-box;
  position: fixed;
  transition: $transition;
  bottom: 0;
  background-color: #222;
  font-size: 13px;
  overflow: auto;

  &--active {
    right: 0;

    .toc,
    .side__logo,
    .side__sub-title,
    .side__board,
    div > a.side__btn,
    .side__title,
    .side__a,
    .side__tab {
      transform: translateX(0px);
      opacity: 1;
    }
  }

  &::-webkit-scrollbar {
    display: none;
  }

  &__logo {
    transform: translateX(10px);
    opacity: 0;
    transition: all 1s .3s ease-in-out;
    display: block;
    margin: 20px auto 0;
    max-width: 96px;
    height: auto;
    border: 2px solid #333;
    padding: 2px;
    background-color: #fff;
  }

  &__sub-title {
    transform: translateX(15px);
    opacity: 0;
    transition: all 1s .35s ease-in-out;
    margin-top: 10px;
    color: #f5f5f5;
    font-size: 16px;
  }

  &__board {
    transform: translateX(20px);
    opacity: 0;
    transition: all 1s .4s ease-in-out;
  }

  a {
    border-bottom-color: #555;
    color: #999;

    &:hover {
      color: #eee;
    }
  }

  &__a {
    margin-right: 10px;
    margin-bottom: 10px;
    transform: translateX(35px);
    opacity: 0;
    transition: all 1s .55s ease-in-out, color .2s ease-in-out;
    display: inline-block;

    &:before {
      display: inline-block;
      vertical-align: middle;
      margin-right: 3px;
      content: " ";
      width: 4px;
      height: 4px;
      border-radius: 50%;
      background: #01e0e7;
    }
  }

  &__title {
    transform: translateX(30px);
    opacity: 0;
    transition: all 1s .5s ease-in-out;
    margin-top: 20px;
    color: #f5f5f5;
  }

  a.side__btn {
    transform: translateX(25px);
    opacity: 0;
    transition: all 1s .45s ease-in-out, background-color .2s ease-in-out, color .2s ease-in-out;
    color: #fc6423;
    margin: 20px 10px 0 10px;
    display: inline-block;
    border: 1px solid #fc6423;
    border-radius: 5px;
    padding: 0 10px;

    &:hover {
      background-color: #fc6423;
      color: #fff;
    }
  }

  &__tab {
    display: inline-block;
    cursor: pointer;
    margin-left: 40px;
    border-bottom: 2px solid transparent;
    line-height: 30px;
    font-size: 14px;
    margin-bottom: 20px;
    transition: all 1s .2s ease-in-out, color .2s ease-in-out, border .2s ease-in-out;
    font-weight: bold;
    padding: 0 10px;
    opacity: 0;
    transform: translateX(10px);

    &:hover {
      color: #eee;
    }

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

    &--current {
      color: #87daff;
      border-bottom-color: #87daff
    }
  }

  #sideGist,
  #sideToc {
    transform: translateY(-20px);
    opacity: 0;
    transition: all .1s linear;

    &.current {
      transform: translateY(0);
      opacity: 1;
    }
  }
}

.footer {
  margin-top: 80px;
  padding: 40px 0;
  background: #f5f5f5;
  color: #666;
  line-height: 24px;

  .wrapper {
    animation: up .8s forwards;
    opacity: 0;
  }
}

.sidebar {
  position: fixed;
  bottom: 64px;
  width: 15px;
  height: 15px;
  background-color: #222;
  line-height: 0;
  right: 50px;
  padding: 5px;
  cursor: pointer;
  z-index: 10;

  &--header {
    position: inherit;
    display: none;
    float: right;
    background-color: transparent;
    transform: scale(1.5);

    .sidebar__line {
      background-color: #555;
    }
  }

  &__line {
    position: relative;
    vertical-align: top;
    height: 2px;
    width: 100%;
    background-color: #fff;
    margin-top: 4px;
    display: block;
    transition: $transition;

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

  &:hover {
    .sidebar__line--first {
      width: 50%;
      transform: rotateZ(-45deg);
      top: 3px
    }

    .sidebar__line--middle {
      width: 90%
    }

    .sidebar__line--last {
      width: 50%;
      transform: rotateZ(45deg);
      top: -3px
    }
  }

  &--active,
  &--active:hover {
    .sidebar__line--first {
      width: 100%;
      transform: rotateZ(-45deg);
      top: 6px
    }

    .sidebar__line--middle {
      opacity: 0
    }

    .sidebar__line--last {
      width: 100%;
      transform: rotateZ(45deg);
      top: -6px
    }
  }

  &--toc {
    .sidebar__line {
      background-color: #87daff;
    }
  }
}

.top__btn {
  position: fixed;
  bottom: -25px;
  opacity: 0;
  width: 15px;
  height: 15px;
  background-color: #222;
  line-height: 0;
  right: 50px;
  padding: 5px;
  cursor: pointer;
  z-index: 10;
  transition: $transition;

  svg {
    color: #fff;
  }
}

// header
@keyframes logoLine {
  0% {
    width: 0;
  }

  100% {
    width: 70%;
  }
}

@keyframes logoLineHover {
  0% {
    width: 70%;
  }

  100% {
    width: 0;
  }
}

.header {
  background: #f5f5f5;
  margin-bottom: 80px;
  padding: 40px 0;

  &__logo {
    position: relative;
    font-size: 22px;
    font-weight: bolder;
    border-bottom-width: 0;
    color: #222;
    float: left;

    div {
      opacity: 0;
      animation: downHalf .4s .8s forwards;
    }

    &:before,
    &:after {
      content: '';
      position: absolute;
      height: 2px;
      background-color: #222;
      left: 15%;
      top: -10px;
      animation: logoLine .8s forwards;
    }

    &:after {
      top: auto;
      left: auto;
      right: 15%;
      bottom: -10px;
    }

    &:hover:before,
    &:hover:after {
      animation: logoLineHover .8s forwards;
    }
  }

  nav {
    animation: down .8s forwards;
    float: right;
    opacity: 0;

    img {
      height: 16px;
      width: 16px;
    }

    a {
      padding: 5px 8px;
      border: none;
      transition-property: background;
      margin-left: 5px;

      &:hover {
        background-color: #e1e1e1;
      }

      svg {
        vertical-align: -2px;
        color: #555;
      }
    }
  }
}

// article
.article {
  &__item {
    margin-bottom: 80px;
  }

  &__header {
    margin-bottom: 10px;
    line-height: 32px;

    .avatar {
      height: 20px;
      width: 20px;
      float: left;
      @include image-bg('../../../images/image-bg.svg');
      border-bottom: 0;
      margin: 2px 5px 0 0;
      border-radius: 10px;
    }

    &--center {
      text-align: center;

      h2 {
        font-size: 28px;
      }

      .article__meta {
        margin: 10px 0 40px;
      }
    }
  }

  &__title {
    position: relative;
    color: #555;
    border-bottom: none;
    line-height: 1.2;
    font-size: 28px;

    &:before {
      content: "";
      position: absolute;
      width: 100%;
      height: 2px;
      bottom: 0;
      left: 0;
      background-color: #000;
      visibility: hidden;
      transform: scaleX(0);
      transition-duration: 0.2s;
      transition-timing-function: ease-in-out;
      transition-delay: 0s;
    }

    &:hover:before {
      visibility: visible;
      transform: scaleX(1);
    }

    svg {
      height: 24px;
      width: 24px;
      float: left;
      margin: 5px 5px 0 0;
    }
  }

  &__meta {
    margin: 5px 0 20px 0;
    color: #999;
    font-size: 12px;
  }

  &__thumb {
    display: block;
    height: 180px;
    width: 100%;
    @include image-bg('../../../images/image-bg.svg');
    border-bottom: 0;
    margin-bottom: 10px;
  }

  &__footer {
    margin-top: 20px;
  }

  &__read {
    padding: 0;
    font-size: 16px;
    color: #666;
    border-bottom: 2px solid #666;
    transition: $transition;
    &:hover {
      color: #222;
    }
  }

  &__edit {
    color: #666;
    border-bottom-width: 0;
    margin-top: 2px;
    cursor: pointer;
    &:hover {
      color: #222;
    }
  }

  &__share {
    display: inline-block;
    position: relative;

    svg {
      height: 16px;
      width: 16px;
    }
  }

  &__code {
    display: none;
    position: absolute;
    top: 16px;
    left: -12px;
    height: 128px;
    width: 128px;
  }

  &__neighbor {
    margin-top: 80px;
    border-top: 1px solid #eee;
    padding-top: 10px;

    a {
      border-bottom: 0;
      color: #555;

      &:hover {
        color: #222;
      }

      svg {
        vertical-align: text-top;
      }
    }
  }

  &__relevant {
    margin: 80px 0 -80px;
    background-color: #f5f5f5;
    border-bottom: 1px solid #eee;
    padding: 40px;

    .relevant {
      &__panel {
        overflow: auto;
        word-break: keep-all;
        word-wrap: normal;
        white-space: nowrap;

        &::-webkit-scrollbar {
          display: none;
        }
        a {
          border-bottom: 0;
          &:hover {
            color: #333;
          }
        }
      }

      &__item {
        width: 260px;
        box-shadow: 0 1px 7px rgba(0, 0, 0, 0.05);
        display: inline-block;
        overflow: hidden;
        background-color: #fff;
        padding: 10px;
        margin-right: 20px;

        .avatar {
          height: 20px;
          width: 20px;
          float: left;
          border-radius: 10px;
          margin: 2px 5px 0 0;
          @include image-bg('../../../images/image-bg.svg');
        }
      }

      &__title {
        font-size: 18px;
        display: block;
        margin-bottom: 5px;

        &:hover {
          color: #555;
        }
      }

      &__thumbnail {
        height: 90px;
        margin: -10px -10px 10px -10px;
        @include image-bg('../../../images/image-bg.svg');
        display: block;
        transition: $transition;

        &:hover {
          transform: scale(1.2);
        }
      }
    }
  }
}

// pagination
.pagination {
  font-size: 16px;
  border-top: 1px solid #eee;

  &__item {
    text-align: center;
    border-bottom: 0;
    border-top: 1px solid #eee;
    transition-property: border-color;
    transition-duration: 0.2s;
    transition-timing-function: ease-in-out;
    transition-delay: 0s;
    display: inline-block;
    position: relative;
    top: -1px;
    margin: 0 10px;
    padding: 0 10px;
    line-height: 30px;
    &:hover {
      border-top-color: #222;
    }

    &--active {
      color: #fff;
      background: #ccc;
      border-top-color: #ccc;
      &:hover {
        border-top-color: #ccc;
      }
    }

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

    &:last-child {
      margin-right: 0;
    }
  }

  &__omit {
    top: -5px;
    margin: 0;
    border: 0;
    padding: 0;
    color: #ccc;
  }
}

// reset comment
#pipeComments {
  a {
    border-bottom: 0;

    &:hover {
      text-decoration: underline;
    }
  }
}

// toc
.toc {
  font-size: 14px;
  text-align: left;
  transform: translateX(20px);
  transition: all 1s .3s ease-in-out;
  opacity: 0;

  li {
    list-style: none;
  }
  @for $i from 1 through 5 {
    .toc__h#{$i} {
      padding-left: 20px * $i
    }
  }

  &__item--active a,
  &__item--active a:hover {
    color: #87daff;
  }
}

// page
.page {
  position: relative;

  .tag {
    margin-top: 10px;
  }

  &:before {
    position: absolute;
    content: "";
    height: 100%;
    width: 4px;
    top: 8px;
    left: 16px;
    background-color: #f5f5f5;
  }

  &__articles {
    margin-bottom: 40px;
    text-align: center;
  }

  &__title {
    position: relative;
    padding-left: 40px;
    margin-bottom: 40px;

    &:before {
      content: "";
      position: absolute;
      top: 7px;
      left: -8px;
      width: 10px;
      height: 10px;
      opacity: .5;
      background: #555;
      border: 1px solid #fff;
      border-radius: 50%;
    }
  }

  &__item {
    transition: $transition;
    display: block;
    padding: 20px 0 20px 40px;
    border-bottom: 1px dashed #ccc;
    position: relative;
    color: #666;

    &:before {
      content: "";
      position: absolute;
      top: 29px;
      left: -6px;
      width: 6px;
      height: 6px;
      opacity: .5;
      background: #bbb;
      border: 1px solid #fff;
      border-radius: 50%;
    }

  }
}

// author
.author {
  padding: 0 0 30px 30px;
  &__item {
    float: left;
    height: 265px;
    width: 202px;
    border-radius: 4px;
    margin: 30px 30px 0 0;
    text-align: center;
    color: $text-color;
    box-shadow: rgba(0, 0, 0, 0.05) 0px 1px 7px;
    line-height: 18px;
    border-bottom: 0;
    &:hover {
      text-decoration: none;
      color: $text-hover-color;

      & .avatar {
        transform: scale(1.2);
      }
    }
  }

  &__header {
    height: 202px;
    overflow: hidden;
    .avatar {
      @include image-bg('../../../images/image-bg.svg');
      transition: all .4s linear;
      border-radius: 0;
      width: 100%;
      height: 100%;
    }
  }

  &__name {
    font-size: 16px;
    margin: 13px 0 3px;
  }
}

// tag
#tags {
  .tag {
    margin-bottom: 10px;
  }
}

.tag {
  padding: 1px 5px;
  background: #f5f5f5;
  border-bottom: none;
  margin-right: 10px;
  font-size: 13px;
  display: inline-block;
  line-height: initial;

  &:hover {
    background: #ccc;
  }

  &__level0 {
    font-size: 12px;
    color: $fade
  }

  &__level1 {
    font-size: 16px;
    color: $gray
  }

  &__level2 {
    font-size: 21px;
    color: #6f6f6f
  }

  &__level3 {
    font-size: 24px;
    color: $black
  }

  &__level4 {
    font-size: 30px;
    color: #000
  }
}

@media (max-width: 768px) {
  .header {
    padding: 20px 0;
    margin-bottom: 20px;
    nav {
      display: none;
      transition: $transition;
      width: 100%;
      border-top: 1px solid rgb(221, 221, 221);
      margin-top: 23px;

      a {
        display: block;
      }
    }
    &__logo {
      font-size: 20px;
    }
    .sidebar--header {
      display: block;
    }
  }

  .footer {
    margin-top: 20px;
    padding: 20px 0;
    .fn-right {
      float: none;
    }
  }

  .article__relevant .relevant__panel {
    white-space: initial;

    .relevant__item {
      width: 100%;
      box-sizing: border-box;
      margin-right: 0;
      margin-bottom: 10px;
    }
  }
  .article__relevant {
    padding: 20px;
    margin: 20px 0px -20px;
  }
  .article__header--center h2,
  .article__title {
    font-size: 18px;
  }
  .article__footer > .article__actions {
    float: none;
    margin-top: 10px;
    text-align: right;
    padding-top: 10px;
  }
  .author {
    padding: 0;

    &__item {
      width: 100%;
      margin: 0 0 20px 0;
    }
  }

  .side {
    width: 100%;
    right: -100%;

    &--active {
      right: 0;
    }
  }

  .sidebar,
  .top__btn {
    right: 20px;
  }

  .page {
    &__articles {
      margin-bottom: 20px;
    }

    &__item--li {
      padding: 10px 0 10px 40px;
    }

    &__title {
      margin-bottom: 0;
    }
  }

  .pagination__item {
    margin: 0;
    float: left;
  }
}