@font-face {
  font-family: 'Valky Regular';
  src: url("../assets/Valky Regular.ttf") format("truetype");
}

.portfolio-year-select {
  font-family: "Valky Regular", sans-serif;
}

.portfolio-class:after,
.portfolio-item:before,
.portfolio-item,
.portfolio-img,
.modal-mask,
.modal {
  transition: all 0.5s ease;
}

.ins-content .wrap {
  display: flex;
}

@media (max-width: 640px) {
  .ins-content .wrap {
    flex-direction: column;
  }
}

.portfolio-side {
  width: 200px;
  margin-right: 80px;
}

@media (max-width: 768px) {
  .portfolio-side {
    margin-right: 40px;
  }
}

@media (max-width: 640px) {
  .portfolio-side {
    width: 100%;
    margin-bottom: 20px;
  }
}

.portfolio-year-select {
  font-size: 18px;
  background-color: #efefef;
  margin-top: 20px;
  border: none;
  border-bottom: 1px solid #000;
  text-align: center;
  width: 100%;
  letter-spacing: 2.34px;
}

.portfolio-class {
  border-top: 1px solid #b4b4b4;
  font-size: 18px;
  font-weight: 600;
  opacity: 0.5;
  position: relative;
  padding: 20px 0;
  margin-bottom: 20px;
  letter-spacing: 2.34px;
}

.portfolio-class-list {
  display: flex;
  flex-direction: column;
}

@media (max-width: 640px) {
  .portfolio-class-list {
    flex-direction: row;
    overflow-x: scroll;
  }
}

.portfolio-class:after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 50px;
  height: 1px;
  background-color: #000;
  transform: scaleX(0);
  transform-origin: left;
}

@media (min-width: 1281px) {
  .portfolio-class:hover {
    opacity: 1;
  }

  .portfolio-class:hover:after {
    content: "";
    position: absolute;
    transform: scaleX(1);
  }
}

@media (max-width: 768px) {
  .portfolio-class {
    margin-bottom: 10px;
  }
}

@media (max-width: 640px) {
  .portfolio-class {
    font-size: 16px;
    padding: 10px 15px;
    margin-bottom: 0;
    word-break: keep-all;
    letter-spacing: 0.96px;
  }
}

.portfolio-class.current {
  opacity: 1;
}

.portfolio-class.current:after {
  content: "";
  position: absolute;
  transform: scaleX(1);
}

.portfolio-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  column-gap: 30px;
  row-gap: 40px;
}

.portfolio-item {
  position: relative;
}

.portfolio-item:before {
  content: "";
  position: absolute;
  height: 285px;
  width: 400px;
  left: -5%;
  top: -5%;
  background-size: cover;
  background-image: url("../images/portHover.png");
  z-index: -1;
  opacity: 0;
  pointer-events: none;
}

@media (min-width: 1281px) {
  .portfolio-item:hover:before {
    content: "";
    position: absolute;
    opacity: 1;
  }

  .portfolio-item:hover .portfolio-img {
    border-radius: 160px;
  }
}

.portfolio-item .icon {
  width: 90px;
  height: 40px;
}

.portfolio-info {
  width: 100%;
}

.portfolio-info .top {
  background-color: #f7f5f5;
  box-shadow: 2px -2px 10px rgba(0, 0, 0, 0.25);
  border-top-left-radius: 20px;
  border-top-right-radius: 20px;
  padding: 80px 80px 40px;
  position: relative;
}

.portfolio-info .top:before {
  content: "";
  position: absolute;
  content: url("../images/icon-about.png");
  top: 20px;
  left: 20px;
  scale: 0.75;
  pointer-events: none;
}

@media (max-width: 640px) {
  .portfolio-info .top {
    padding: 80px 30px 40px;
  }
}

.portfolio-info .portfolio-title {
  margin-bottom: 10px;
  font-size: 25px;
  padding-left: 0;
  letter-spacing: 3.25px;
}

@media (max-width: 640px) {
  .portfolio-info .portfolio-title {
    font-size: 18px;
    letter-spacing: 1.08px;
  }
}

.portfolio-info .portfolio-title+p {
  line-height: 1.6;
  letter-spacing: 1.7px;
}

.portfolio-info .portfolio-content {
  padding: 40px 20px;
}

.portfolio-title {
  padding-left: 80px;
}

.portfolio-more {
  display: inline-block;
  width: 100%;
  margin-left: auto;
  padding-right: 80px;
  text-align: right;
}

.portfolio-img {
  border-radius: 40px;
  overflow: hidden;
}

.portfolio-album-list {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.portfolio-album-item {
  width: 50%;
  cursor: pointer;
  width: calc(50% - 8px);
}

@media (max-width: 640px) {
  .portfolio-album-item {
    width: 100%;
  }
}

.portfolio-album-item:nth-child(6n+2),
.portfolio-album-item:nth-child(6n+3),
.portfolio-album-item:nth-child(6n+4),
.portfolio-album-item:nth-child(6n+5) {
  width: calc(33.33% - 11px);
}

@media (max-width: 768px) {

  .portfolio-album-item:nth-child(6n+2),
  .portfolio-album-item:nth-child(6n+3),
  .portfolio-album-item:nth-child(6n+4),
  .portfolio-album-item:nth-child(6n+5) {
    width: calc(50% - 8px);
  }
}

@media (max-width: 640px) {

  .portfolio-album-item:nth-child(6n+2),
  .portfolio-album-item:nth-child(6n+3),
  .portfolio-album-item:nth-child(6n+4),
  .portfolio-album-item:nth-child(6n+5) {
    width: 100%;
  }
}

.portfolio-album-item:nth-child(6n+6),
.portfolio-album-item:nth-child(6n+7) {
  width: calc(50% - 8px);
}

@media (max-width: 640px) {

  .portfolio-album-item:nth-child(6n+6),
  .portfolio-album-item:nth-child(6n+7) {
    width: 100%;
  }
}

.portfolio-album-item:nth-child(2) {
  width: calc(50% - 8px);
}

@media (max-width: 640px) {
  .portfolio-album-item:nth-child(2) {
    width: 100%;
  }
}

.modal-mask {
  background-color: rgba(94, 94, 94, 0.75);
  position: fixed;
  left: 0;
  top: 0;
  height: 100%;
  width: 100%;
  z-index: 1000;
  opacity: 0;
  pointer-events: none;
}

.modal-mask.show {
  opacity: 1;
  pointer-events: auto;
}

.modal {
  position: fixed;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 100%;  
  max-width: 800px;
  z-index: 1001;
  opacity: 0;
  pointer-events: none;
}

@media (max-width: 1180px) {
  .modal {
    max-width: 85vw;
  }
}

.modal.show {
  opacity: 1;
  pointer-events: auto;
}

.modal-title {
  position: relative;
  color: #fff;
  padding: 20px 40px;
}

.modal-title:before {
  content: "";
  position: absolute;
  content: url("../images/icon-about.png");
  top: -20px;
  left: -20px;
  scale: 0.75;
  pointer-events: none;
  filter: brightness(0) invert(1);
}

.modal-title .close-modal {
  position: absolute;
  right: -20px;
  bottom: -30px;
  z-index: 5;
}

.modal-content {
  position: relative;
}

.modal-content .arrow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 110%;
  height: 100%;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  pointer-events: none;
}

.modal-content .arrow>div {
  cursor: pointer;
  pointer-events: auto;
}

.modal .album-nav .slick-slide {
  padding: 0 5px;
}

.modal .album-list .portfolio-album-item img {
  margin: 0 auto;
}