html,
body {
	width: 100%;
	height: 100%;
	margin: 0px;
	padding: 0px;
}




/* =========================================================
   Header overlay
========================================================= */

.site-header--overlay {
  position: absolute;
  z-index: 30;
  top: 0;
  left: 0;
  width: 100%;
}


/* =========================================================
   Main Visual
========================================================= */

.main-visual {
  --kv-side-space: max(24px, calc((100vw - 1240px) / 2));
  --kv-project-width: 390px;
  --kv-content-gap: 150px;

  /*
    左エリアの幅
    画面幅から
    左右余白・右エリア・中央余白150pxを引いた残りを使う
  */
  --kv-left-width: min(
    640px,
    calc(
      100vw
      - var(--kv-side-space)
      - var(--kv-side-space)
      - var(--kv-project-width)
      - var(--kv-content-gap)
    )
  );

  --kv-deep-green: #004152;
  --kv-gold: #c2be82;

  position: relative;
  width: 100%;
  height: 100vh;
  height: 100svh;
  min-height: 600px;
  overflow: hidden;
  background: #1c2828;
}


/* =========================================================
   Swiper
========================================================= */

.main-visual__slider,
.main-visual__slider .swiper-wrapper,
.main-visual__slider .swiper-slide {
  width: 100%;
  height: 100%;
}

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


/* =========================================================
   Background image
========================================================= */

.main-visual__image {
  position: absolute;
  z-index: 0;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
  overflow: hidden;
}
.main-visual__image:before {content: '';width: 100%;height: 100%;position: absolute;left: 0;top:0;background-image: linear-gradient(0deg, rgba(0, 0, 0, 0.4), rgba(0, 0, 0, 0.0) 50%, rgba(0, 0, 0, 0));z-index: 1;}

@media(max-width:768px) {
	.main-visual__image:before {background-image: linear-gradient(0deg, rgba(0, 0, 0, 0.4), rgba(0, 0, 0, 0.0) 70%, rgba(0, 0, 0, 0));}
}

.main-visual__image img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1);
  transition: transform 5s linear;
  will-change: transform;
}

/* 現在表示中のスライドだけ、ゆっくりズーム */
.main-visual__slide.is-zooming .main-visual__image img {
  transform: scale(1.08);
}

/*
  次に表示されるスライドを、
  ズーム開始前の倍率へ瞬時に戻すためのクラス
*/
.main-visual__slide.is-zoom-reset .main-visual__image img {
  transform: scale(1);
  transition: none;
}s

/* =========================================================
   Overlay
========================================================= */

.main-visual__overlay {
  position: absolute;
  z-index: 1;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(
      90deg,
      rgba(0, 0, 0, 0.50) 0%,
      rgba(0, 0, 0, 0.34) 31%,
      rgba(0, 0, 0, 0.12) 62%,
      rgba(0, 0, 0, 0.16) 100%
    );
}


/* =========================================================
   Left copy
========================================================= */

.main-visual__copy {
  position: absolute;
  z-index: 5;
  left: var(--kv-side-space);
  bottom: clamp(102px, 13vh, 130px);
  width: var(--kv-left-width);
  color: #ffffff;
  font-family: "Noto Sans JP", sans-serif;
  font-size: clamp(15px, 1.05vw, 17px);
  font-weight: 400;
  line-height: 2;
  letter-spacing: 0.08em;
}

.main-visual__copy p + p {
  margin-top: 28px;
}


/* =========================================================
   Project information
========================================================= */

.main-visual__project {
  position: absolute;
  z-index: 5;
  right: var(--kv-side-space);
  bottom: clamp(96px, 12vh, 120px);
  width: var(--kv-project-width);
  max-width: calc(
    100vw
    - var(--kv-side-space)
    - var(--kv-side-space)
  );
  color: #ffffff;
}

.main-visual__project-number,
.main-visual__project-title,
.project-link {
  opacity: 0;
  transform: translateY(18px);
}

.swiper-slide-active .main-visual__project-number {
  animation: project-info-in 0.7s cubic-bezier(0.22, 1, 0.36, 1) 1s forwards;
}

.swiper-slide-active .main-visual__project-title {
  animation: project-info-in 0.7s cubic-bezier(0.22, 1, 0.36, 1) 1.15s forwards;
}

.swiper-slide-active .project-link {
  animation: project-info-in 0.7s cubic-bezier(0.22, 1, 0.36, 1) 1.3s forwards;
}

@keyframes project-info-in {
  0% {
    opacity: 0;
    transform: translateY(18px);
  }

  100% {
    opacity: 1;
    transform: translateY(0);
  }
}


/* Project number */

.main-visual__project-number {
  margin: 0;
  font-family: "Inter", sans-serif;
  font-size: clamp(20px, 1.65vw, 24px);
  font-style: italic;
  font-weight: 200;
  line-height: 1.2;
  letter-spacing: 0.04em;
}


/* Project title */

.main-visual__project-title {
  margin: 8px 0 24px;
  font-family: "Noto Sans JP", sans-serif;
  font-size: 16px;
  font-weight: 500;
  line-height: 1.75;
  letter-spacing: 0.05em;
}


/* =========================================================
   Project button
========================================================= */

.project-link {
  /*position: relative;*/
  display: flex;
  width: 180px;
  height: 48px;
  overflow: hidden;
  color: #ffffff;
  text-decoration: none;
  /*background: var(--kv-deep-green);*/
	position: absolute;
	left: 160px;
	top:-11px;
}

.project-link::before {
  /*position: absolute;
  z-index: 0;
  inset: 0;
  width: 100%;
  height: 100%;
  content: "";
  background: var(--kv-gold);
  transform: scaleX(0);
  transform-origin: left center;
  transition:
    transform 0.6s cubic-bezier(0.22, 1, 0.36, 1) 0.12s;*/
}
.project-link::before,
.project-link::after{
	position: absolute;
	top: 0;
	bottom: 0;
	left: 0;
	margin: auto;
	content: "";
	vertical-align: middle;
}
.project-link::before{
	left: 4px;
	width: 80px;
	height: 1px;
	background: #FFF;
	transition: all 0.3s;
}
.project-link:hover:before{
	width: 100px;
}
.project-link::after{
	left: 75px;
	width: 8px;
	height: 8px;
	border-top: 1px solid #FFF;
	border-right: 1px solid #FFF;
	-webkit-transform: rotate(45deg);
	transform: rotate(45deg);
	transition: all 0.3s;
}
.project-link:hover:after{
	left: 95px;
}

.project-link__text,
.project-link__icon {
  position: relative;
  z-index: 1;
}

.project-link__text {
  display: flex;
  align-items: center;
  width: calc(100% - 48px);
  padding-left: 20px;
  font-family: "Noto Sans JP", sans-serif;
  font-size: 16px;
  font-weight: 500;
  letter-spacing: 0.04em;
  transition: color 0.25s ease 0.25s;
	opacity: 0;
}

.project-link__icon {
  display: grid;
  flex: 0 0 48px;
  width: 48px;
  height: 48px;
  place-items: center;
  /*background: var(--kv-gold);*/
  transition: background-color 0.12s ease;
}

.project-link__icon img {
	display: none;
  /*display: block;
  width: 16px;
  height: auto;*/
}


/* Hover:
   1. 右端のゴールドが一度濃緑に戻る
   2. 左から右へゴールドが広がる


.project-link:hover .project-link__icon,
.project-link:focus-visible .project-link__icon {
  background: var(--kv-deep-green);
}

.project-link:hover::before,
.project-link:focus-visible::before {
  transform: scaleX(1);
}

.project-link:hover .project-link__text,
.project-link:focus-visible .project-link__text {
  color: var(--kv-deep-green);
}
*/
.project-link:focus-visible {
  outline: 2px solid #ffffff;
  outline-offset: 4px;
}


/* =========================================================
   Controls
========================================================= */

.main-visual__controls {
  position: absolute;
  z-index: 10;
  bottom: 8px;
  left: var(--kv-side-space);
  width: var(--kv-left-width);
}

.main-visual__arrow-list {
  display: flex;
  gap: 48px;
  margin-bottom: 8px;
}

.main-visual__arrow {
  display: grid;
  width: 48px;
  height: 48px;
  padding: 0;
  cursor: pointer;
  place-items: center;
  border: 1px solid #ffffff;
  border-radius: 50%;
  outline: none;
  background-color: rgba(255, 255, 255, 0.20);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition:
    background-color 0.3s ease,
    transform 0.3s ease;
}

.main-visual__arrow img {
  display: block;
  width: 16px;
  height: auto;
  transition: filter 0.3s ease;
}

.main-visual__arrow:hover,
.main-visual__arrow:focus-visible {
  background-color: #ffffff;
  transform: translateY(-2px);
}

/*
  left_arrow.svg / right_arrow.svg が白矢印の場合、
  Hover時は濃い青緑へ近づけるためのフィルター。
*/
.main-visual__arrow:hover img,
.main-visual__arrow:focus-visible img {
  filter:
    brightness(0)
    saturate(100%)
    invert(18%)
    sepia(27%)
    saturate(1128%)
    hue-rotate(143deg)
    brightness(88%)
    contrast(100%);
}

.main-visual__arrow:focus-visible {
  outline: 2px solid #ffffff;
  outline-offset: 4px;
}


/* =========================================================
   Progress indicator
========================================================= */

.main-visual__progress {
  position: relative;
  width: 100%;
  height: 2px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.9);
}

.main-visual__progress-bar {
  display: block;
  width: 100%;
  height: 100%;
  background: var(--kv-gold);
  transform: scaleX(0);
  transform-origin: left center;
  will-change: transform;
}


/* =========================================================
   Tablet
========================================================= */

@media screen and (max-width: 1024px) {
  .main-visual {
    --kv-side-space: 40px;
    --kv-project-width: 310px;
    --kv-content-gap: 150px;
  }

  .main-visual__copy {
    bottom: clamp(100px, 12vh, 122px);
    max-width: none;
  }

  .main-visual__project {
    right: var(--kv-side-space);
    bottom: clamp(94px, 11vh, 112px);
    width: var(--kv-project-width);
    max-width: none;
  }

  .main-visual__project-title {
    font-size: 15px;
  }
}


/* =========================================================
   SP
========================================================= */

@media screen and (max-width: 900px) and (min-width: 768px) {
  .main-visual {
    --kv-side-space: 32px;
    --kv-project-width: 260px;
    --kv-content-gap: 150px;
  }

  .main-visual__copy {
    font-size: 14px;
    line-height: 1.9;
  }

  .main-visual__copy p + p {
    margin-top: 20px;
  }

  .main-visual__project-title {
    font-size: 14px;
    line-height: 1.65;
  }
}

@media screen and (max-width: 767px) {
  .main-visual {
    height: 100vh;
    height: 100svh;
    min-height: 560px;
  }

  .main-visual__overlay {
    background:
      linear-gradient(
        180deg,
        rgba(0, 0, 0, 0.14) 0%,
        rgba(0, 0, 0, 0.12) 30%,
        rgba(0, 0, 0, 0.55) 100%
      );
  }

  .main-visual__copy {
    bottom: 296px;/*242px*/
    width: 92.8%;
    font-size: 13px;
    line-height: 1.95;
    letter-spacing: 0.06em;
    left: 3.6%;
    margin-right: auto;
  }
	.main-visual__copy p {font-size: 4.0vw;}

  .main-visual__copy p + p {
    margin-top: 18px;
  }

  .main-visual__project {
    right: 20px;
    bottom: 162px;/*108px*/
    width: 92.8%;
    max-width: none;
    left: 3.6%;
  }

  .main-visual__project-number {
    font-size: 19px;
  }

  .main-visual__project-title {
    margin: 6px 0 16px;
    font-size: 14px;
    line-height: 1.65;
  }

  .project-link {
    width: 172px;
    height: 46px;
  }

  .project-link__text {
    padding-left: 18px;
    font-size: 14px;
  }

  .project-link__icon {
    flex-basis: 46px;
    width: 46px;
    height: 46px;
  }

  .main-visual__controls {
    width: 92.8%;
    left:3.6%;
    right:3.6%;
	  bottom: 80px;
  }

  .main-visual__arrow-list {
    gap: 24px;
  }

  .main-visual__arrow {
    width: 44px;
    height: 44px;
  }
}


/* =========================================================
   Reduced motion
========================================================= */

@media (prefers-reduced-motion: reduce) {
  .main-visual__slide.swiper-slide-active .main-visual__image img,
  .swiper-slide-active .main-visual__project-number,
  .swiper-slide-active .main-visual__project-title,
  .swiper-slide-active .project-link {
    animation: none;
  }

  .main-visual__project-number,
  .main-visual__project-title,
  .project-link {
    opacity: 1;
    transform: none;
  }

  .project-link::before,
  .project-link__icon,
  .project-link__text,
  .main-visual__arrow,
  .main-visual__arrow img {
    transition: none;
  }
}