// =============================================================================
// Course Sidebar Styles
// (c) Mathigon
// =============================================================================


x-course-sidebar {
  width: 280px;
  position: fixed;
  top: 44px;
  left: 0;
  bottom: 0;
  display: flex;
  flex-direction: column;
  color: white;
  background: $grey linear-gradient(rgba(black, 0%) 240px, rgba(black, 25%));
  z-index: 301;
  box-shadow: 0 0 12px rgba(black, 25%);

  .sidebar-hero {
    height: 220px;
    padding: 0 20px;
    background-size: cover;
    position: relative;
    flex-shrink: 0.5;
  }

  .sidebar-hero-gradient {
    content: ' ';
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    top: 40px;
    background-image: linear-gradient(rgba(black, 0%), rgba(black, 60%) 140px);
  }

  .sidebar-title {
    font-size: 30px;
    font-weight: 600;
    line-height: 1.1;
    position: absolute;
    bottom: 16px;
  }

  .course-icon {
    border: 2px solid white;
    border-radius: 4px;
    margin-bottom: 4px;
    width: 54px;
    height: 54px;
    background-size: cover;
  }

  .sidebar-author {
    display: block;
    font-size: 16px;
    margin-top: 6px;
    width: fit-content;
    opacity: 0.7;
  }

  .sidebar-body {
    flex-grow: 1;
    @include overflow-scroll();
  }

  .sidebar-row {
    display: block;
    padding: 11px 20px 11px 52px;
    line-height: 20px;
    font-weight: 600;
    @include dividers(calc(100% - 72px));

    x-progress {
      position: absolute;
      left: 20px;
      top: 11px;
      width: 20px;
      height: 20px;
      color: white;
    }

    .connection {
      position: absolute;
      width: 2px;
      height: calc(100% - 18px);
      left: 29px;
      top: 30px;
      background: white;
      pointer-events: none;
    }

    x-icon.left {
      position: absolute;
      top: 9px;
      left: 18px;
      color: white;
      + .connection { top: 28px; height: calc(100% - 16px); }
    }

    x-icon.right {
      margin: -2px -2px 0 6px;
      float: right;
      color: rgba(white, 60%);
    }

    &:last-child .connection { display: none; }
    &:first-child { margin-top: 16px; }
  }

  .sidebar-footer {
    display: flex;
    justify-content: center;
    flex-shrink: 0;
  }

  .footer-link {
    position: relative;
    cursor: pointer;
    padding: 12px 10px;

    x-icon { display: block; fill: rgba(white, 70%); transition: fill .2s }
    &:hover x-icon, &:focus x-icon { fill: rgba(white, 90%); }
  }

  .sidebar-banner {
    flex-shrink: 0;
    margin: 0 18px;
    text-align: center;
    font-size: 14px;
    padding: 4px 0 6px;
    border-top: 1px solid rgba(white, 40%);
    color: rgba(white, 60%)
  }
}

.sidebar-toggle {
  position: fixed;
  width: 24px;
  height: 24px;
  bottom: 8px;
  left: 8px;
  background: $red;
  border-radius: 24px;
  display: none;
  z-index: 300;
  cursor: pointer;
  padding: 10px;
  box-shadow: $shadow;
  x-icon { fill: white; }
}

.sidebar-shadow {
  display: none;
  position: fixed;
  z-index: 300;
  top: 0; left: 0; right: 0; bottom: 0;
}


// -----------------------------------------------------------------------------
// Modals

x-modal { user-select: text; }

#feedback .error { display: none; color: $red; margin: 5px 8px; }
#feedback button[disabled]:after { content: "ing…"; }
x-modal#feedback-success { width: 320px; text-align: center; }

x-modal#share { width: 400px; }

.share-row {
  display: flex;
  margin: -4px;
  flex-wrap: wrap;
  justify-content: center;

  .btn {
    width: 36px;
    height: 36px;
    margin: 4px;
    padding: 8px;
    min-width: 0;
    border-radius: 8px;
    box-shadow: none;
    x-icon { margin: 0; }
  }
}

#glossary-search {
  width: 600px;
  height: 440px;
  font-size: 16px;
  background: mix($yellow, white, 30%);
}

.gloss-sidebar {
  width: 200px;
  display: flex;
  flex-direction: column;
  background: $yellow;
  border-radius: 12px 0 0 12px;
  h2 { margin: 20px 24px; color: white; fill: white; }
}

.gloss-search {
  position: relative;
  x-icon { position: absolute; top: 9px; left: 24px; fill: white; }
}

.gloss-search input {
  padding: 10px 12px 10px 54px;
  width: 100%;
  color: white;
  box-sizing: border-box;
  transition: background .2s;
  background: rgba(white, 24%);
  &:hover, &:focus { background: rgba(white, 32%); }
  &::placeholder { color: rgba(white, 70%); }
}

.gloss-list {
  flex: 1 1;
  @include overflow-scroll();
  border-bottom-left-radius: 12px;
  margin-top: -1px;
}

.gloss-item {
  cursor: pointer;
  line-height: 1.3;
  padding: 8px 12px 8px 24px;
  font-weight: 600;
  @include dividers(calc(100% - 36px));
}

.gloss-body {
  flex: 1 1;
  @include overflow-scroll();
  padding: 64px 32px 32px;
}

@media screen and (max-width: $browser-medium) {
  x-course-sidebar { will-change: transform; left: -280px; transition: transform .3s, box-shadow .3s; box-shadow: none; }
  .sidebar-toggle { display: block; }
  x-course-sidebar.open { transform: translateX(280px); box-shadow: 10px 0 60px rgba(black, 50%); }
  x-course-sidebar.open + .sidebar-shadow { display: block; }
}