@charset "UTF-8";
.casestudy-list {
  padding: 90px 0 170px;
  background: #FAF5F1;
}
@media (max-width: 768px) {
  .casestudy-list {
    padding: 60px 0 100px;
  }
}
@media (max-width: 480px) {
  .casestudy-list {
    padding: 40px 0 80px;
  }
}
.casestudy-list__wrapper {
  display: flex;
  gap: 80px;
}
@media (max-width: 1024px) {
  .casestudy-list__wrapper {
    flex-direction: column;
    gap: 60px;
  }
}

.casestudy__list {
  flex: 1;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  column-gap: 20px;
  row-gap: 30px;
}
@media (max-width: 768px) {
  .casestudy__list {
    grid-template-columns: 1fr;
    gap: 20px;
  }
}

.casestudy__item {
  position: relative;
  width: 100%;
  aspect-ratio: 55/45;
  overflow: hidden;
  transition: none;
  cursor: pointer;
  border-radius: 4px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}
@media (max-width: 768px) {
  .casestudy__item {
    aspect-ratio: 55/45;
  }
}
@media (max-width: 480px) {
  .casestudy__item {
    aspect-ratio: 55/45;
  }
}

/* カード */
.case-study-card {
  position: relative;
  width: 100%;
  height: 100%;
  overflow: hidden;
  transition: none;
  cursor: pointer;
}
.case-study-card__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
  flex: 1;
}
.case-study-card:hover .case-study-card__image {
  transform: scale(1.05);
}
.case-study-card__location {
  position: absolute;
  top: 28px;
  left: 28px;
  font-size: 14px;
}
@media (max-width: 1024px) {
  .case-study-card__location {
    font-size: 13px;
  }
}
@media (max-width: 768px) {
  .case-study-card__location {
    font-size: 12px;
  }
}
@media (max-width: 480px) {
  .case-study-card__location {
    font-size: 10px;
  }
}
.case-study-card__location {
  color: #FFFFFF;
  z-index: 10;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
  font-weight: 500;
}
@media (max-width: 768px) {
  .case-study-card__location {
    top: 20px;
    left: 20px;
  }
}
@media (max-width: 480px) {
  .case-study-card__location {
    top: 16px;
    left: 16px;
  }
}
.case-study-card {
  /* オーバーレイ */
}
.case-study-card__overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 28px;
  background: linear-gradient(to top, #E62327 0%, rgba(230, 35, 39, 0.7) 30%, rgba(255, 255, 255, 0) 100%);
  color: #FFFFFF;
}
@media (max-width: 768px) {
  .case-study-card__overlay {
    padding: 20px;
  }
}
@media (max-width: 480px) {
  .case-study-card__overlay {
    padding: 16px;
  }
}
.case-study-card__title {
  font-size: 18px;
}
@media (max-width: 1024px) {
  .case-study-card__title {
    font-size: 18px;
  }
}
@media (max-width: 768px) {
  .case-study-card__title {
    font-size: 18px;
  }
}
@media (max-width: 480px) {
  .case-study-card__title {
    font-size: 14px;
  }
}
.case-study-card__title {
  font-weight: 500;
  line-height: 1.4;
  margin-bottom: 25px;
}
@media (max-width: 768px) {
  .case-study-card__title {
    margin-bottom: 20px;
    line-height: 1.35;
  }
}
@media (max-width: 480px) {
  .case-study-card__title {
    margin-bottom: 16px;
    line-height: 1.3;
  }
}
.case-study-card {
  /* タグ */
}
.case-study-card__tags {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}
@media (max-width: 480px) {
  .case-study-card__tags {
    gap: 6px;
  }
}
.case-study-card__tag {
  display: inline-block;
  padding: 4px 20px;
  background: transparent;
  color: #fff;
  line-height: 1;
  border: 1px solid #fff;
  border-radius: 20px;
  font-size: 12px;
}
@media (max-width: 1024px) {
  .case-study-card__tag {
    font-size: 12px;
  }
}
@media (max-width: 768px) {
  .case-study-card__tag {
    font-size: 12px;
  }
}
@media (max-width: 480px) {
  .case-study-card__tag {
    font-size: 10px;
  }
}
.case-study-card__tag {
  font-weight: 500;
  transition: all 0.3s ease;
}
@media (max-width: 768px) {
  .case-study-card__tag {
    padding: 4px 16px;
  }
}
@media (max-width: 480px) {
  .case-study-card__tag {
    padding: 3px 12px;
  }
}
.case-study-card__tag:hover {
  background: #fff;
  color: #E62327;
}

.seminar-pagination {
  grid-column: 1/-1;
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 40px;
}
@media (max-width: 768px) {
  .seminar-pagination {
    margin-top: 30px;
  }
}
@media (max-width: 480px) {
  .seminar-pagination {
    margin-top: 20px;
    gap: 4px;
  }
}

.casestudy-filter {
  width: 100%;
  background: #FFFFFF;
  padding: 50px;
  border-radius: 8px;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
  margin-bottom: 90px;
}
@media (max-width: 1024px) {
  .casestudy-filter {
    padding: 40px;
    margin-bottom: 70px;
  }
}
@media (max-width: 768px) {
  .casestudy-filter {
    padding: 30px;
    margin-bottom: 60px;
  }
}
@media (max-width: 480px) {
  .casestudy-filter {
    padding: 20px;
    margin-bottom: 50px;
  }
}
.casestudy-filter__section {
  margin-bottom: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid #E5E5E5;
}
.casestudy-filter__section:last-child {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: none;
}
@media (max-width: 768px) {
  .casestudy-filter__section {
    margin-bottom: 30px;
    padding-bottom: 25px;
  }
  .casestudy-filter__section:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
  }
}
.casestudy-filter__title {
  font-size: 24px;
}
@media (max-width: 1024px) {
  .casestudy-filter__title {
    font-size: 22px;
  }
}
@media (max-width: 768px) {
  .casestudy-filter__title {
    font-size: 18px;
  }
}
@media (max-width: 480px) {
  .casestudy-filter__title {
    font-size: 16px;
  }
}
.casestudy-filter__title {
  font-weight: 500;
  color: #333;
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 8px;
  position: relative;
  padding-left: 30px;
}
.casestudy-filter__title::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 20px;
  height: 20px;
  background-image: url("../images/common/icon_circle.svg");
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
}
@media (max-width: 768px) {
  .casestudy-filter__title {
    margin-bottom: 20px;
    padding-left: 26px;
  }
  .casestudy-filter__title::before {
    width: 18px;
    height: 18px;
  }
}
@media (max-width: 480px) {
  .casestudy-filter__title {
    padding-left: 24px;
  }
  .casestudy-filter__title::before {
    width: 16px;
    height: 16px;
  }
}
.casestudy-filter__icon {
  display: none;
}
.casestudy-filter__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
}
@media (max-width: 768px) {
  .casestudy-filter__tags {
    gap: 15px;
  }
}
.casestudy-filter__tag {
  display: inline-block;
  padding: 5px 16px;
  background: #FFFFFF;
  border: 1px solid #D4D4D4;
  border-radius: 16px;
  font-size: 13px;
}
@media (max-width: 1024px) {
  .casestudy-filter__tag {
    font-size: 12px;
  }
}
@media (max-width: 768px) {
  .casestudy-filter__tag {
    font-size: 11px;
  }
}
@media (max-width: 480px) {
  .casestudy-filter__tag {
    font-size: 10px;
  }
}
.casestudy-filter__tag {
  color: #666;
  cursor: pointer;
  transition: all 0.3s ease;
  line-height: 1.4;
  font-weight: 400;
  text-decoration: none;
}
.casestudy-filter__tag:hover {
  background: #E62327;
  color: #FFFFFF;
  border-color: #E62327;
}
.casestudy-filter__tag:active, .casestudy-filter__tag.active {
  background: #E62327;
  color: #FFFFFF;
  border-color: #E62327;
}
@media (max-width: 768px) {
  .casestudy-filter__tag {
    padding: 4px 12px;
  }
}
@media (max-width: 480px) {
  .casestudy-filter__tag {
    padding: 3px 10px;
  }
}

.page-title--left .page-title__container {
  align-items: flex-start;
}
.page-title--left .section-title__en {
  text-align: left;
}
.page-title--left .section-title__ja {
  margin-left: 0;
  margin-right: auto;
}