@charset "UTF-8";

:root {
  --main-color: #4C5C68;
  --black-color:#2C3E50;
  --white-color: #fff;
  --gray-color: #dedede;
  --gray-color02: #fafafa;
  --primary-color:  #F6BBC6;
  --accent-color:#C4A484;
}

:root {
  --content-width-sm: 800px;
  --content-width: 960px;
  --content-width-lg: 1088px;
}

:root {
  --z-index-back: -1;
  --z-index-default: 1;
  --z-index-header: 100;
  --z-index-menu: 150;
  --z-index-modal: 200;
}


body {
  width: 100%;
  overflow-x: hidden;
  margin: 0;
  padding: 0;
  color: var(--black-color);
  font-size: 16px;
  font-family: 'Noto Sans JP', sans-serif;
  line-height: 1.8;
  letter-spacing: 0.1em;
}

/*kv*/


.main-kv {
  position: relative;
  overflow: hidden;
}

.main-kv::before {
  content: '';
  position: absolute;
  top: -30%;
  left: -20%;
  width: 140%;
  height: 140%;
  background-image: url('../img/top_back.png');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  opacity: 0.2; /* 半透明 */
  transform: rotate(-20deg); /* 斜め表示 */
  z-index: 0;
}

.main-kv > * {
  position: relative;
  z-index: 1;
}

.main-kv .kv-wrapper{
  padding-top: 80px;
  display: flex;
  max-width: 1000px;
  align-items: center;
  margin: 0 auto;
  height: 80vh;
}

.kv-wrapper .kv-left{
  width: 65%;
}

.kv-wrapper .kv-logo{
  width: 80%;
  margin-bottom: 60px;
}

.kv-wrapper .kv-text{
  font-size: 14px;
  margin-left: 32px;
}

.kv-wrapper .title{
  font-weight: 600;
  font-size: 18px;
  margin-bottom: 16px;
}

.kv-wrapper .kv-right{
  height:100%;
  width:40%;
}

.main-kv .kv-concept{
  color:#fff;
  max-width: 1440px;
  text-align: right;
  font-family: "Joan", serif;
  font-size: 5rem;
  line-height: 1.2;
  margin-top: 40px;
}

@media screen and (max-width: 1000px) {
  .kv-wrapper .kv-logo{
    margin-left: 32px;
  }
}

@media screen and (max-width: 768px) {
  .main-kv::before {
    transform: rotate(-15deg);
    z-index: 0;
  }

  .main-kv .kv-concept{
    color:#fff;
    text-align: right;
    font-size: 3rem;
    line-height: 1.2;
}
}

@media screen and (max-width: 600px) {
  .main-kv .kv-wrapper{
    display: block;
    padding-top: 120px;
    height: auto;
  }

  .kv-wrapper .kv-left{
    width: 90%;
  }

  .kv-wrapper .kv-logo{
    width: 95%;
    margin: 0 0 32px 25px;
  }

  .kv-wrapper .kv-text{
    font-size: 12px;
  }

  .kv-wrapper .title{
    font-size: 16px;
  }

  .kv-wrapper .kv-right {
    display: flex;
    justify-content: flex-end;
    width: 100%;
  }

  .kv-photo {
    max-width: 50%;
  }

  .kv-photo img {
    width: 100%;
    height: auto;
    display: block;
  }

  .main-kv .kv-concept{
    font-size: 3.0rem;
    margin-top: 250px;
  }
}

/*details*/

.section_details{
  width:80%;
  max-width: 1000px;
  background-color: #fff;
  margin: 120px auto;
  text-align: center;
  padding:40px 0;
}

.section_details .title{
  font-weight: bold;
  font-size: 24px;
}

.section_details .details-wrapper{
  display: flex;
  margin-top: 24px;
  gap: 32px;
  align-items: center;
  justify-content: center;
}

.section_details .details-left{
  width: 25%;
}

.section_details .details-right{
  text-align: left;
}

.details-right .dt-logo{
  width: 80%;
  margin-bottom: 16px;
}

.details-right .mb-logo{
  width: 30%;
  margin-bottom: 16px;
}

.details-right .mb-logo:hover {
  opacity: 0.7;
}

.details-right .schedule{
  font-weight: 500;
  border-bottom: 1px solid var(--black-color);;
  display: inline-block;
  padding-bottom: 5px;
  margin-bottom: 16px;
}

@media screen and (max-width: 768px) {
  .section_details{
    width: 90%;
    margin: 80px auto;
  }
  .section_details .details-wrapper{
    flex-direction: column;
    text-align: center;
    margin: 30px auto;
  }

  .section_details .details-left{
    width: 40%;
  }

  .section_details .details-right{
    text-align: center;
    font-size: 14px;
    width: 90%;
  }

  .details-right .dt-logo{
    display: block;
    margin: 0 auto 16px;
  }

  .details-right .mb-logo {
    display: block;
    margin: 0 auto 32px;
    width: 40%;
  }
}

@media screen and (max-width: 500px) {
  .section_details .details-left{
    width: 60%;
  }

}


/*archive*/

.section_archive {
  margin: 120px auto;
  text-align: center;
}

.section_archive .title{
  font-weight: bold;
  font-size: 24px;
}
.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(25%, 1fr));
  gap: 5%;
  max-width: 1000px;
  margin: 40px auto;
  padding: 0 16px;
  width: 90%;
}

.video-item {
  cursor: pointer;
  text-align: center;
  transition: transform 0.3s ease;
  position: relative;
}

.video-item:hover {
  transform: scale(1.03);
}

.video-item img {
  width: 100%;
  height: auto;
  box-shadow: 0 4px 10px rgba(0,0,0,0.1);
}

.video-number {
  position: absolute;
  font-family: "Jost", sans-serif;
  font-size: 32px;
  font-weight: 500;
  top: -32px;
  left: -25px;
  color: #475687;
  padding: 4px 8px;
  letter-spacing: -0.5px;
}


.video-item h3 {
  margin-top: 12px;
  font-size: 16px;
  color: #333;
  text-align: left;
  font-weight: 500;
}

/* モーダル */
.video-modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0,0,0,0.8);
  justify-content: center;
  align-items: center;
  z-index: 1000;
}

.video-modal-content {
  position: relative;
  width: 80vw;
  height: 45vw;
  max-width: 1280px;
  max-height: 720px;
  background: transparent;
}

.video-modal-content iframe {
  width: 100%;
  height: 100%;
  border: none;
}

.video-modal-close {
  position: absolute;
  top: -60px;
  right: 0px;
  color: white;
  font-size: 30px;
  cursor: pointer;
}

@media screen and (max-width: 768px) {
  .video-grid {
    grid-template-columns: repeat(auto-fill, minmax(40%, 1fr));
    gap: 32px;
    max-width: 1000px;
    width: 90%;
  }

  .video-modal-content {
    width: 90vw;
  }
}

@media screen and (max-width: 500px) {
  .video-grid {
    grid-template-columns: repeat(auto-fill, minmax(80%, 1fr));
    gap: 64px;
    max-width: 1000px;
    width: 80%;
  }

  .video-item h3 {
   font-size: 14px;
  }

  .video-modal-content {
    width: 95vw;
  }
}

/*prof*/

.section_prof {
  width: 90%;
  max-width: 1000px;
  margin: 120px auto;
}

.section_prof .title {
  display: block;
  font-size: 2.0rem;
  font-style: normal;
  letter-spacing: -0.02em;
  font-family: "Jost", sans-serif;
  margin-bottom: 16px;
  font-weight: 500;
}

.section_prof .prof-wrapper{
  display: flex;
  gap: 30px;
  justify-content: center;
}

.prof-left {
  width: 45%;
}

.prof-left .name{
  display: flex;
  gap: 24px;
  margin-bottom: 16px;
}

.prof-left .name .jp{
  font-size: 20px;
  font-weight: 500;
}

.prof-left .name .en{
  font-size: 20px;
  font-family: "Oooh Baby", cursive;
}

.prof-left .prof-text {
  font-size: 14px;
  font-weight: 400;
  margin-bottom: 16px;
}

.link {
  width: 360px;
  overflow: hidden;
  opacity: 1 !important;
  transition-delay: .4s;
  font-size: 0.8rem;
}

.link a {
  position: relative;
  text-decoration: none;
  border-bottom: 1px solid var(--main-color);
  padding: 0 0 5px 10px;
  display: inline-block;
  width: 300px;
}

.link a::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: -10px;
  width: 10px;
  height: 10px;
  border-top: 1px solid var(--main-color);
  border-right: 1px solid var(--main-color);
  transform: translateY(-50%) rotate(45deg);
  background: transparent;
}

.link a:hover {
  color:#4C5C6880;
  border-bottom: 1px solid #4C5C6880;
}

.prof-right {
  width: 40%;
  z-index: 1;
  margin-top: -40px;
}

.prof-right .prof-img {
  width: 100%;
  aspect-ratio: 1 / 1;
  overflow: hidden;
}

.prof-right .prof-img img{
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top;
  display: block;
}

@media screen and (max-width: 768px) {
  .section_prof .prof-wrapper {
    flex-direction: column-reverse;
    align-items: center;
  }

  .prof-left {
    width: 80%;
  }

  .prof-right {
    width: 50%;
    z-index: 1;
    margin-top: 10px;
  }
}

@media screen and (max-width: 500px) {
  .prof-left {
    width: 90%;
  }

  .prof-right {
    width: 70%;
    z-index: 1;
    margin-top: 10px;
  }
}