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HTML 

              
                #app  
  .Carousel
    .lightbox(
      v-show="lightboxActive" 
      @click.self="lightboxActive=false; currLightboxImg = currImgIdx"
    )
      img(:src="imgList[currLightboxImg].src")
      .prev(@click="goToImg(currLightboxImg-1)")
      .next(@click="goToImg(currLightboxImg+1)")

    img.currImg(
      :src="imgList[currImgIdx].src"
      @click="lightboxActive=true"
    )
    transition-group.CROP(
      :name="transition_name" 
      tag="div"
    )
      .Carousel_chunk(
        v-for="(chunk,i) in arrChunk"
        v-show="currSlide == i"
        :key="i"
      )
        //- :style=`width:${(100/chunkSize).toFixed(1)}%;`
        .chunk_item(
          v-for="(item,j) in chunk"
          :key="j"
          @click="currImgIdx = j+(i*chunkSize)"
          :class="{CURR: item.src == imgList[currImgIdx].src}"
        )
          img(
            :src="item.src"
          )

    .Carousel-controls
      //- button(@click="prev()") « СЮДА
      svg(
        @click="prev", 
        width='48', height='48', viewBox='0 0 24 24', 
        fill='gold', stroke='currentColor', 
        stroke-width='2', stroke-linecap='round', stroke-linejoin='round'
      )
        circle(cx='12', cy='12', r='10')
        polyline(points='12 8 8 12 12 16')
        line(x1='16', y1='12', x2='8', y2='12')

      .Carousel-controls_dot(
        v-for="(dot, i) in arrChunk"
        :class="{CURR : currSlide == i}"
        @click="goToChunk(i)"
      ) {{i+1}}
      //- button(@click="next()") ТУДА »
      svg(
        @click="next", 
        width='48', height='48', viewBox='0 0 24 24', 
        fill='gold', stroke='currentColor', 
        stroke-width='2', stroke-linecap='round', stroke-linejoin='round'
      )
        circle(cx='12', cy='12', r='10')
        polyline(points='12 16 16 12 12 8')
        line(x1='8', y1='12', x2='16', y2='12')
!

CSS 

              
                *
  margin 0
  padding 0
  box-sizing border-box

  
#app
  display flex
  height 100vh
  
.CROP
  height 96px
  overflow hidden
  width 100%
  padding 8px 0
  // background #EEE

.Carousel
  margin auto
  width 480px
  &_chunk
    display flex
    // justify-content center
    justify-content space-between
    align-items center
  .currImg
    cursor pointer

.chunk_item
  // flex 1
  height 80px
  margin 2px
  padding 2px
  border 1px solid transparent
  cursor pointer
  &:hover
    border 1px solid #2196f3  
  &.CURR
    background gold
    outline 2px solid #000
    border-color transparent
  img
    display inline-block
    height 100%

$W = 1.2rem
$H = 1.2rem
.Carousel
  &-controls
    user-select none
    display flex
    justify-content space-between
    align-items center
    &_dot,
    svg
      cursor pointer
    svg:hover
      fill yellow
  &-controls_dot
    border-radius: 50%
    width $W
    line-height $H

    text-align center
    background-color #222 //rgba(#000, .3)
    font-family sans-serif
    font-size .5em
    color #FFF
    &:hover
      // background-color #2196f3
      transform scale(1.4, 1.4)
    &.CURR
      cursor none
      background-color gold//#477dca
      color #000
      font-weight bold
      transform scale(1.4, 1.4)
    
    
    
.slide_next-enter-active,
// .slide_next-leave-active,
.slide_prev-enter-active,
// .slide_prev-leave-active
  transition: transform .3s //cubic-bezier(0.47, 0, 1,-0.96); //ease-out
  // opacity .5

.slide_next-enter,
// .slide_prev-leave-to
  transform: translateX(100%)

// .slide_next-leave-to,
.slide_prev-enter
  transform: translateX(-100%)
  
  
.lightbox
  cursor pointer
  user-select none
  position fixed
  z-index 1
  top: 0;
  left: 0;
  width 100%
  height 100%
  //background //rgba(#000, .7)
  background #616574 url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='80' height='80' viewBox='0 0 10 10' fill='none' stroke-linecap='round' stroke-linejoin='round' stroke='gold'><line x1='4' y1='4' x2='6' y2='6' /><line x1='6' y1='4' x2='4' y2='6' /></svg>") top right no-repeat
  display flex
  img
    cursor default
    margin auto
    
    //width: auto
    max-width: 90%
    max-height: 100%
    
    
.prev
.next
  position absolute
  top 50%

  width 40px
  height 60px
  margin -30px 4% 0

  background #444 url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 10 10' fill='none' stroke-linecap='round' stroke-linejoin='round'><path stroke='gold' d='M6,2 L4,5 L6,8'/></svg>") center / cover no-repeat

  &:hover
    background-color #222
.next
  right 0
  background-image url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 10 10' fill='none' stroke-linecap='round' stroke-linejoin='round'><path stroke='gold' d='M4,2 L6,5 L4,8'/></svg>")
!

JS 

              
                const imgList = Array.from({length:33},(v,i) => ({src: `//raw.githubusercontent.com/codrops/HoverEffectIdeas/master/img/${i+1}.jpg`}))


const vm = new Vue({
  el: "#app",
  data() {
    return {
      chunkSize: 4,
      imgList: imgList,
      currSlide: 0,
      currImgIdx: 15,
      transition_name: "slide_next",
      lightboxActive: false,
      currLightboxImg: 15
    }
  },
  watch: {
    currImgIdx(newVal) {
      this.currLightboxImg = newVal
    }
  },
  computed: {
    arrChunk() {
      return Array
        .from({ length: Math.ceil(this.imgList.length / this.chunkSize) }, (v, i) =>
              this.imgList.slice(i * this.chunkSize, i * this.chunkSize + this.chunkSize)
             );
    }
  },
  methods: {
    prev() {
      this.transition_name = "slide_prev";
      this.currSlide = this.currSlide == 0 ? this.arrChunk.length - 1 : this.currSlide-1;
    },
    next() {
      this.transition_name = "slide_next";
      this.currSlide = this.currSlide == this.arrChunk.length - 1 ? 0 : this.currSlide+1;
    },
    goToImg(n) {
      this.currLightboxImg = n<0 ? this.imgList.length-1 : n%this.imgList.length;
    },
    goToChunk(idx) {
      this.transition_name = (idx < this.currSlide) ? "slide_prev" : "slide_next";
      this.currSlide = idx;
    }
  }
});
!
999px

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