#challenge-list.grid-layout {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  margin: 0 auto;
  max-width: 1200px;
  width: calc(100% - 120px);
}
@media screen and (max-width: 1079px) {
  #challenge-list.grid-layout {
    width: calc(100% - 60px);
  }
}
@media screen and (max-width: 599px) {
  #challenge-list.grid-layout {
    width: calc(100% - 40px);
  }
}
@media screen and (max-width: 359px) {
  #challenge-list.grid-layout {
    width: calc(100% - 30px);
  }
}
#challenge-list.grid-layout .card {
  background-color: #272727;
  color: #fff;
  height: 186px;
  margin-bottom: 4px;
  overflow: hidden;
  position: relative;
  width: calc(25% - 3px);
}
@media screen and (max-width: 1319px) {
  #challenge-list.grid-layout .card {
    height: 14vw;
  }
}
@media screen and (max-width: 1079px) {
  #challenge-list.grid-layout .card {
    height: 19.5vw;
    width: calc(33.33333% - 2.66667px);
  }
}
@media screen and (max-width: 839px) {
  #challenge-list.grid-layout .card {
    height: 28.5vw;
    width: calc(50% - 2px);
  }
}
@media screen and (max-width: 599px) {
  #challenge-list.grid-layout .card {
    height: 57.5vw;
    margin-bottom: 2px;
    width: 100%;
  }
}
#challenge-list.grid-layout .card:after {
  background-image: url(../img/top/arrow-large.svg);
  background-repeat: no-repeat;
  background-size: cover;
  content: '';
  height: 117px;
  position: absolute;
  right: 0;
  top: -26px;
  transition: all 1s cubic-bezier(0.19, 1, 0.22, 1);
  width: 116px;
}
#challenge-list.grid-layout .card .no {
  left: 16px;
  position: absolute;
  top: 16px;
  z-index: 3;
}
#challenge-list.grid-layout .card .no em {
  display: block;
  font-family: Red Hat Text, sans-serif;
  font-size: 2.4rem;
  font-style: normal;
  font-weight: 700;
  line-height: 1;
  min-width: 28px;
  text-align: center;
  white-space: nowrap;
}
#challenge-list.grid-layout .card .no em:after {
  background-color: #fff;
  bottom: -8px;
  content: '';
  height: 4px;
  left: 50%;
  min-width: 28px;
  position: absolute;
  transform: translateX(-50%);
  width: 100%;
}
#challenge-list.grid-layout .card .no:after {
  bottom: -50px;
  color: #fff;
  content: '∞';
  font-family: Red Hat Text, sans-serif;
  font-size: 4rem;
  left: 50%;
  position: absolute;
  transform: translateX(-50%);
}
#challenge-list.grid-layout .card > p {
  bottom: 0;
  box-sizing: border-box;
  font-family: HonMinSink-B;
  left: 0;
  letter-spacing: 0.1rem;
  margin: 0;
  padding: 16px;
  position: absolute;
  width: 100%;
  z-index: 3;
}
#challenge-list.grid-layout .card .img {
  height: 100%;
  position: relative;
  transition: all 1s cubic-bezier(0.19, 1, 0.22, 1);
  width: 100%;
  z-index: 1;
}
#challenge-list.grid-layout .card .img img {
  height: 100%;
  -o-object-fit: cover;
  object-fit: cover;
  width: 100%;
}
#challenge-list.grid-layout .card:before {
  background-color: rgba(0, 0, 0, 0.5);
  content: '';
  height: 100%;
  left: 0;
  position: absolute;
  top: 0;
  transition: background-color 0.25s linear;
  width: 100%;
  z-index: 2;
}
#challenge-list.grid-layout .card:hover {
  cursor: pointer;
}
#challenge-list.grid-layout .card:hover .img {
  transform: scale(1.1);
}
#challenge-list.grid-layout .card:hover:before {
  background-color: transparent;
}
#challenge-list.grid-layout .card:hover:after {
  transform: scale(1.2);
}
#challenge-list.grid-layout:after,
#challenge-list.grid-layout:before {
  content: '';
  width: calc(25% - 3px);
}
@media screen and (max-width: 1079px) {
  #challenge-list.grid-layout:after,
  #challenge-list.grid-layout:before {
    width: calc(33.33333% - 2.66667px);
  }
}
#challenge-list.grid-layout:before {
  order: 1;
}
@media screen and (max-width: 1079px) {
  #challenge-list.grid-layout:before {
    display: none;
  }
}
#challenge-list.grid-layout .card .img {
  height: 100%;
}
#challenge-list.grid-layout .card .img > img {
  object-fit: cover;
  min-width: 100%;
  min-height: 100%;
  z-index: 1;
  position: absolute;
}