ngx-admin/src/app/@theme/components/switcher/switcher.component.scss

@import '../../styles/themes';
@import '~bootstrap/scss/mixins/breakpoints';
@import '~@nebular/theme/styles/global/breakpoints';

@include nb-install-component() {
  .switch-label {
    display: flex;
    justify-content: space-around;
    align-items: center;
    cursor: pointer;
    margin: 0;

    &.vertical {
      flex-direction: column;
      align-items: flex-start;

      .first,
      .second {
        padding: 0;
      }

      .switch {
        margin-top: 0.5em;
      }
    }

    & > span {
      transition: opacity 0.3s ease;
      color: nb-theme(text-hint-color);

      &.first {
        @include nb-ltr(padding-right, 10px);
        @include nb-rtl(padding-left, 10px);
      }

      &.second {
        @include nb-ltr(padding-left, 10px);
        @include nb-rtl(padding-right, 10px);
      }

      &.active {
        color: nb-theme(text-basic-color);
      }

      &:active {
        opacity: 0.78;
      }
    }
  }

  .switch {
    position: relative;
    display: inline-block;
    width: 3rem;
    height: 1.5rem;
    margin: 0;

    input {
      display: none;

      &:checked + .slider::before {
        @include nb-ltr(transform, translateX(1.5rem));
        @include nb-rtl(transform, translateX(-1.5rem));
      }
    }

    .slider {
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      bottom: 0;
      border-radius: 1.75rem;
      background-color: nb-theme(background-basic-color-2);
    }

    .slider::before {
      position: absolute;
      content: '';
      height: 1.5rem;
      width: 1.5rem;
      border-radius: 50%;
      background-color: nb-theme(color-primary-default);
      transition: 0.2s;
    }
  }

  @include media-breakpoint-down(xs) {
    align-items: flex-end;
  }
}