.portfolio__modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  z-index: 100;
  background: rgba(0, 0, 0, 0);
  pointer-events: none;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all .5s;
}

.portfolio__modal.active {
  background: rgba(0, 0, 0, 1);
  pointer-events: auto;
}

.portfolio__modal .lightbox {
  width: 80%;
  max-height: 92vh;
  border: 2px solid white;
  border-radius: 8px;
  overflow: hidden;
  transform: translateY(120%);
  opacity: 0;
  position: relative;
  transition: all .5s;
}
.portfolio__modal .lightbox::before, .lightbox .title::before {
  position: absolute;
  content: '';
  width: 100%;
  height: 100%;
  background-color: black;
  opacity: 0;  
}

.portfolio__modal .fade.lightbox:before {
  animation: fade-img .62s;
}
@keyframes fade-img {
  0% {opacity: .7;}
  25% {opacity: .7;}
  100% {opacity: 0;}
}

.portfolio__modal.active .lightbox {
  transform: translateY(0);
  opacity: 1;
}

.portfolio__modal .lightbox img {
  height: 100%;
  width: 100%;
  object-fit: cover;
  display: block;
}

.portfolio .lightbox .close-btn {
  position: absolute;
  top: 6px;
  right: 8px;
  background: rgba(0, 0, 0, .6);
  padding: 4px 11px;
  font-size: 31px;
  color: white;
  border-radius: 8px;
  border: 1px solid white;
  cursor: pointer;
  z-index: 10;
  transition: all .5s;
}
.portfolio .lightbox .close-btn:hover {
    background: rgba(0, 0, 0, 1);
}

.portfolio .lightbox .title, .portfolio .lightbox .number {
  position: absolute;  
  opacity: 1;
  background: rgba(255, 255, 255, .8);
  color: black;
  border-radius: 8px;
}

.portfolio .lightbox .title {
  bottom: 10px;
  left: 10px;
  font-size: calc(10px + 1.2vw);
  padding: 7px 8px;
  border: 1px solid white;
}

.portfolio .lightbox .fade.title {
  animation: change-text .8s;
}
@keyframes change-text {
  0% {
    opacity: .3;
    left: 25px;
  }
  100% {
    opacity: 1;
    left: 10px;
  }
}

.portfolio .lightbox .number {
  bottom: 8px;
  right: 8px;
  font-size: calc(8px + 1vw);
  padding: 3px 5px;
  border: 1px solid black;
}

.portfolio .lightbox .fade.number {
  animation: change-number .8s;
}
@keyframes change-number {
  0% {
    opacity: .3;
  }
  100% {
    opacity: 1;
  }
}

.portfolio .lightbox .next-btn, .portfolio .lightbox .previous-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background-color: orange;
  border: 2px solid black;
  font-size: 18px;
  padding: 16px;
  cursor: pointer;
  opacity: .6;
  transition: all .5s;
}
.portfolio .lightbox .next-btn:hover, .portfolio .lightbox .previous-btn:hover {
  opacity: 1;
}

.portfolio .lightbox .next-btn {
  right: 0;
  border-radius: 5px 0 0 5px;
  border-width: 2px 0 2px 2px;
}

.portfolio .lightbox .previous-btn {
  left: 0;
  border-radius: 0 5px 5px 0;
  border-width: 2px 2px 2px 0;
}

@media (max-width: 768px) {
  .portfolio__grid .image__title {
    font-size: calc(8px + .7vw);
  }

  .portfolio__modal .lightbox {
    width: 90%;
  }

  .portfolio .lightbox .next-btn, .portfolio .lightbox .previous-btn {
      padding: 11px;
  }

  .portfolio .lightbox .close-btn {
    padding: 4px 10px;
    font-size: 27px;
  }

  .portfolio .lightbox .title {
    bottom: 7px;
    padding: 5px 6px;
  }

  .portfolio .lightbox .number {
    bottom: 6px;
    right: 5px;
  }
}