.o-button {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  min-width: 60px;
  height: $height;
  padding: 0 $padding;
  color: #fff;
  font-size: $font-size--sm;
  line-height: 1;
  border: none;
  border-radius: $radius--sm;
  background-color: $blue;
  transition: background-color .4s;
  user-select: none;
  cursor: pointer;

  &--sm {
    height: $height--sm;
  }

  &:hover {
    background-color: rgba($blue, .8);
  }

  &:active {
    background-color: darken($blue, 5%);
  }

  &__icon {
    font-size: $font-size--md;
    margin-right: $spacing--xs;
  }

  &--cancel {
    color: $gray--dark;
    background-color: $gray--light;

    &:hover,
    &:active {
      color: $primary;
      background-color: $blue--light;
    }

    &:active {
      outline: 1px solid #3a8ee6;
    }
  }
}

.o-pagination-button {
  border-color: $blue;
  background-color: $blue;

  &:hover {
    border-color: rgba($blue, .8);
    background-color: rgba($blue, .8);
  }
}

.o-tag {
  min-width: 80px;
  text-align: center;
}

.o-next {
  display: inline-block;
  width: 1em;
  height: 1em;
  text-align: center;

  &::before {
    content: '';
    display: inline-block;
    border-top: .5em solid transparent;
    border-bottom: .5em solid transparent;
    border-left: .68em solid currentcolor;
  }

  &::after {
    content: '';
    display: inline-block;
    height: 1em;
    border-left: .1em solid currentcolor;
  }
}

.o-thumbnail {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  width: 80px !important;
  height: 45px !important;
}

.o-select-option {
  max-width: 400px;
}

.o-date-picker {
  &.hide-footer {
    .el-picker-panel__footer .el-button--text {
      display: none;
    }
  }
}

.o-upload {
  display: flex;

  .el-upload {
    display: flex;
    flex: 1 1 auto;
  }

  .el-upload-dragger {
    flex: 1 1 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    min-width: 0;
    width: auto;
    height: auto;
    padding: $spacing;
    color: $gray;
    font-size: $font-size--sm;
    font-weight: bold;

    &.is-dragover {
      border-width: 1px;
    }
  }

  .o-upload__icon {
    margin: 0;
    color: $blue;
    font-size: $font-size--xl;
    line-height: 1;
  }

  &__accept {
    margin-top: $spacing--xs;
    font-size: $font-size--xs;
    font-weight: normal;
  }
}

.o-info {
  padding: 0 $spacing;
  color: $info--dark;
  line-height: normal;

  & > div + div {
    margin-top: $spacing--3xs;
  }
}

.o-expand-icon {
  transition: transform 0.2s;

  &.expand {
    transform: rotate(90deg);
  }
}

.o-tab {
  display: inline-flex;
  align-items: center;
  vertical-align: bottom;

  &__icon {
    padding: 0 $spacing--xs;
    margin-left: -$spacing--xs;
    color: $blue;
    font-size: 1.4em;
    font-weight: bold;
    line-height: 1;
  }
}

.o-icon {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  width: 32px;
  height: 32px;
  font-size: 18px;
  @extend .has-bg;

  &.lg {
    width: 64px;
    height: 64px;
    font-size: 32px;
  }

  &.md {
    width: 48px;
    height: 48px;
    font-size: 24px;
  }

  &.medium {
    width: 32px;
    height: 32px;
    font-size: 18px;
  }

  &.sm {
    width: 24px;
    height: 24px;
    font-size: 16px;
  }

  &--hover {
    border-radius: 50%;
    transition: background-color 0.4s;

    &:hover {
      background-color: $gray--light;
    }
  }
}

.o-link {
  display: inline-block;
  color: $gray;
  font-size: $font-size--xs;

  &::after {
    content: attr(href);
  }

  &:hover {
    color: $blue;
    text-decoration: underline;
  }
}

.o-simple-video {
  object-fit: contain;

  &::-webkit-media-controls-enclosure {
    display: none;
  }
}

.o-video {
  position: relative;
  padding-top: $padding--16_9;
  border-radius: $radius--sm;
  background-color: #000;
  overflow: hidden;

  &.controls:hover,
  &.mask {
    .o-video__mask {
      display: inline-block;
    }
  }

  &.offline {
    background: url("~@/assets/image_offline.svg") 0 0 / 100% 100% no-repeat;

    .o-video__mask {
      display: none;
    }
  }

  &__player {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
  }

  &__mask {
    display: none;
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.3);
  }

  &__btn {
    position: absolute;
    left: 50%;
    top: 50%;
    width: 64px;
    height: 64px;
    color: #fff;
    font-size: 48px;
    border-radius: 50%;
    background-color: rgba(#000, 0.5);
    transform: translate(-50%, -50%);
  }
}