chamilo-lms/assets/css/scss/_sidebar.scss

// ---------------------------------------------------------
// SIDEBAR SCSS
// ---------------------------------------------------------

.sidebar {
  background-color: $default-white;
  bottom: 0;
  overflow: hidden;
  position: fixed;
  top: 0;
  transition: all 0.2s ease;
  width: $offscreen-size;
  z-index: 1000;

  ul {
    list-style-type: none;
  }

  @include between($breakpoint-md, $breakpoint-xl) {
    width: $collapsed-size;

    .sidebar-inner {
      .sidebar-logo {
        border-bottom: 1px solid transparent;
        padding: 0;

        a {
          .logo {
            background-position: center center;
            width: $collapsed-size;
          }
        }
      }

      .sidebar-menu {
        overflow-x: hidden;

        > li {
          > a {
            .title {
              display: none;
            }
          }
        }

        li {
          &.dropdown {
            .arrow {
              opacity: 0;
            }

            &.open {
              ul.dropdown-menu {
                display: none !important;
              }
            }
          }
        }
      }
    }

    &:hover {
      width: $offscreen-size;

      .sidebar-inner {
        .sidebar-logo {
          border-bottom: 1px solid $border-color;
          padding: 0 20px;
        }

        .sidebar-menu {
          > li {
            > a {
              .title {
                display: inline-block;
              }
            }
          }

          li {
            &.dropdown {
              .arrow {
                opacity: 1;
              }
            }

            &.open {
              > ul.dropdown-menu {
                display: block !important;
              }
            }
          }
        }
      }
    }
  }

  @include to($breakpoint-md) {
    left: -$offscreen-size;
    width: calc(#{$offscreen-size} - 30px);
  }
}

// ---------------------------------------------------------
// SIDEBAR INNER
// ---------------------------------------------------------

.sidebar-inner {
  position: relative;
  height: 100%;
}

// ---------------------------------------------------------
// SIDEBAR LOGO
// ---------------------------------------------------------

.sidebar-logo {
  border-bottom: 1px solid $border-color;
  border-right: 1px solid $border-color;
  line-height: 0;
  padding: 0 20px;
  transition: all 0.2s ease;

  a {
    display: inline-block;
    width: 100%;

    .logo {
      background: no-repeat center left;
      display: inline-block;
      min-height: calc(#{$header-height} - 1px);
      width: 100%;
    }

    .logo-text {
      color: $grey-900;
    }
  }

  .mobile-toggle {
    display: none;
    float: right;
    font-size: 18px;
    line-height: calc(#{$header-height} - 1px);

    a {
      color: $default-text-color;
    }

    @include to($breakpoint-md) {
      display: inline-block;
    }

    @include between($breakpoint-md, $breakpoint-xl) {
      display: none;
    }
  }
}

// ---------------------------------------------------------
// SIDEBAR MENU
// ---------------------------------------------------------

.sidebar-menu {
  @include clearfix;
  border-right: 1px solid $border-color;
  height: calc(100vh - #{$header-height});
  list-style: none;
  margin: 0;
  overflow: auto;
  padding: 0;
  position: relative;
  background: linear-gradient(180deg, #0181bf, #00bcda);

  .nav-header {
    margin-top: 10px;
    margin-bottom: 10px;
    padding-left: 10px;
    padding-right: 10px;
    font-size: 12px;
    color: $default-white;
  }

  .sidebar-divider {
    height: 0;
    margin: .5rem 0;
    overflow: hidden;
    border-top: 1px solid #217aa4;
    border-bottom: 1px solid #16b1fd;
  }

  .dropdown-toggle::after {
    display: none;
  }

  .sidebar-link {
    &.active::before {
      background: $default-warning;
      content: '';
      display: block;
      height: 100%;
      left: -4px;
      position: absolute;
      top: 0;
      width: 8px;
    }
  }

  li {
    position: relative;

    &.dropdown {
      .arrow {
        font-size: 10px;
        line-height: 40px;
        position: absolute;
        right: 30px;
        transition: all 0.05s ease-in;

        @include to($breakpoint-md) {
          right: 25px;
        }
      }

      &.open {
        > a {
          color: $default-white;

          &.dropdown-toggle {
            background: $default-active;
          }

          .icon-holder {
            color: $default-info;
          }

          > .arrow {
            transform: rotate(90deg);
          }
        }

        > .dropdown-menu {
          display: block;

          .dropdown-menu {
            padding-left: 20px;
          }

          .arrow {
            line-height: 25px;
          }
        }
      }
    }

    a {
      color: $default-white;
      transition: all 0.3s ease;
      display: block;
      font-size: 14px;
      font-weight: normal;
      padding: 5px 15px;
      position: relative;
      white-space: nowrap;

      i {
        border-radius: 6px;
        display: inline-block;
        font-size: 17px;
        height: 35px;
        left: 0;
        line-height: 35px;
        margin-right: 14px;
        position: relative;
        text-align: center;
        transition: all 0.3s ease;
        width: 40px;
      }

      &.active {
        background: $default-active;
      }

      &:hover,
      &:focus {
        color: $default-info;
        text-decoration: none;
        background: $default-active;

        .icon-holder {
          color: $default-info;
        }
      }
    }
  }

  > li {
    &.dropdown {
      ul {
        &.dropdown-menu {
          background-color: #0099ca;
          border-radius: 0;
          border: 0;
          box-shadow: none;
          float: none;
          padding-left: 10px;
          padding-top: 0;
          position: relative;
          width: 100%;

          > li {
            > a {
              display: block;
              padding: 10px 15px;

              &:hover,
              &:focus {
                background-color: transparent;
                color: $default-dark;
              }
            }

            &.active {
              a {
                color: $default-dark;
              }
            }
          }
        }
      }
    }
  }
}

// ---------------------------------------------------------
// SIDEBAR COLLAPSED
// ---------------------------------------------------------

.is-collapsed {
  .sidebar {
    @include from($breakpoint-xl) {
      width: $collapsed-size;

      .sidebar-inner {
        .sidebar-logo {
          border-bottom: 1px solid transparent;
          padding: 0;
        }

        .sidebar-menu {
          overflow-x: hidden;

          > li {
            &.nav-header {
              display: none;
            }

            > a {
              .title {
                display: none;
              }
            }
          }

          li {
            &.dropdown {
              .arrow {
                opacity: 0;
              }

              &.open {
                ul.dropdown-menu {
                  display: none !important;
                }
              }
            }
          }
        }
      }

      &:hover {
        width: $offscreen-size;

        .sidebar-inner {
          .sidebar-logo {
            border-bottom: 1px solid $border-color;
            padding: 0 20px;
          }

          .sidebar-menu {
            > li {
              &.nav-header {
                display: inline-block;
              }
              > a {
                .title {
                  display: inline-block;
                }
              }
            }

            li {
              &.dropdown {
                .arrow {
                  opacity: 1;
                }
              }

              &.open {
                > ul.dropdown-menu {
                  display: block !important;
                }
              }
            }
          }
        }
      }
    }

    @include between($breakpoint-md, $breakpoint-xl) {
      width: $offscreen-size;

      .sidebar-inner {
        .sidebar-logo {
          border-bottom: 1px solid $border-color;
          padding: 0 20px;

          > a {
            .logo {
              background-position: center left;
              width: 150px;
            }
          }
        }

        .sidebar-menu {
          > li {
            > a {
              .title {
                display: inline-block;
              }
            }
          }

          li {
            &.dropdown {
              .arrow {
                opacity: 1;
              }
            }

            &.open {
              > ul.dropdown-menu {
                display: block !important;
              }
            }
          }
        }
      }
    }

    @include to($breakpoint-md) {
      left: 0;
    }
  }
}