/* ============================================================
   front-page.css
   ============================================================ */

/* ============================================================
   Hero Section
   ============================================================ */
.hero {
  padding-top: var(--header-height-sp);
  position: relative;
}

.hero__catch {
  padding: 3rem var(--padding-sp) 3rem;
}

.hero__title {
  font-family: var(--font-en);
  font-size: clamp(2.6rem, 8vw, 8rem);
  font-weight: 700;
  font-weight: 400;
  line-height: 1.1;
  color: var(--color-green);
  letter-spacing: -0.01em;
  letter-spacing: -0.02em;
  /* font-style: italic; */
}

/* Swiper slider */
.hero__slider {
  width: 100%;
  height: 50vw;
  min-height: 24rem;
  max-height: 56rem;
  position: relative;
}

.hero__slider .swiper {
  width: 100%;
  height: 100%;
}

.hero__slider .swiper-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Scroll down circle */
.hero__scroll {
  position: absolute;
  right: var(--padding-sp);
  top: -40px;
  /* bottom: -4rem; */
  z-index: 10;
  width: 8rem;
  height: 8rem;
  cursor: pointer;
  transform: translateX(8px);
}

.hero__scroll-circle {
  position: relative;
  width: 100%;
  height: 100%;
}

.hero__scroll-text {
  position: absolute;
  inset: 0;
  animation: rotate 12s linear infinite;
}

.hero__scroll-arrow {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 5rem;
  height: 5rem;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background-color: var(--color-accent);
  border-radius: 50%;
}

.hero__scroll-arrow svg {
  width: 1.6rem;
  height: 1.6rem;
  color: var(--color-text-dark);
}

@keyframes rotate {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* Slider pagination */
.hero__pagination {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 1.2rem;
  padding: 1.2rem var(--padding-sp);
}

.hero__pagination-count {
  font-family: var(--font-en);
  font-size: 1.3rem;
  font-weight: 400;
  color: var(--color-green);
  letter-spacing: 0.05em;
}

.hero__pagination-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 3rem;
  height: 3rem;
  border: 1px solid var(--color-green);
  border-radius: 50%;
  background: none;
  cursor: pointer;
  transition: var(--transition);
}

.hero__pagination-btn svg {
  width: 1.2rem;
  height: 1.2rem;
  color: var(--color-green);
}

@media (min-width: 768px) {
  .hero {
    padding-top: var(--header-height-pc);
  }

  .hero__catch {
    padding: 6rem var(--padding-pc) 6rem;
  }

  .hero__scroll {
    right: calc(var(--padding-pc) - -12rem);
    top: -70px;
    /* bottom: -5rem; */
    width: 14rem;
    height: 14rem;
  }

  .hero__scroll-arrow {
    width: 9rem;
    height: 9rem;
  }

  .hero__scroll-arrow svg {
    width: 2rem;
    height: 2rem;
  }

  .hero__pagination {
    padding: 1.6rem var(--padding-pc);
  }

  @media (hover: hover) {
    .hero__pagination-btn:hover {
      background-color: var(--color-green);
    }

    .hero__pagination-btn:hover svg {
      color: var(--color-white);
    }
  }
}

/* ============================================================
   Side accent bar（右側縦帯 - スクロール追従なし）
   ============================================================ */
.side-bar {
  display: none;
}

@media (min-width: 768px) {
  .side-bar {
    display: flex;
    position: absolute;
    right: 0;
    top: 0;
    width: 3.2rem;
    background-color: var(--color-accent);
    opacity: 0.5;
    height: 100%;
    align-items: center;
    justify-content: center;
    pointer-events: none;
  }

  .side-bar__text {
    writing-mode: vertical-rl;
    font-family: var(--font-en);
    font-size: 1rem;
    font-weight: 400;
    letter-spacing: 0.2em;
    color: var(--color-green);
    text-transform: uppercase;
    white-space: nowrap;
  }
}

/* ============================================================
   Side Nav（PC固定・JS制御）
   ============================================================ */
.sidenav {
  display: none;
}

@media (min-width: 768px) {
  .sidenav {
    display: none;
    width: var(--sidenav-width);
    z-index: 10;
  }

  /* about上端より上：aboutの位置に止まる */
  .sidenav.is-static {
    display: block;
    position: absolute;
    left: var(--padding-pc);
  }

  /* about以降：fixed追従 */
  .sidenav.is-fixed {
    display: block;
    position: fixed;
    left: var(--padding-pc);
    top: calc(var(--header-height-pc) + 4rem);
  }

  .sidenav__list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 2rem;
  }

  .sidenav__item {
    position: relative;
  }

  /* ▶マーク：CSSで三角形 */
  .sidenav__item.is-active::before {
    content: '';
    position: absolute;
    left: -1.4rem;
    top: 50%;
    transform: translateY(-50%);
    width: 0;
    height: 0;
    border-style: solid;
    border-width: 0.4rem 0 0.4rem 0.6rem;
    border-color: transparent transparent transparent var(--color-green);
  }

  .sidenav__item a {
    display: inline-block;
    font-family: var(--font-en);
    font-size: 1.2rem;
    font-weight: 400;
    letter-spacing: 0.12em;
    color: var(--color-green);
    /* text-transform: uppercase; */
    opacity: 0.5;
    transition: var(--transition);
  }

  .sidenav__item.is-active a {
    opacity: 1;
    background-color: var(--color-green);
    color: var(--color-white);
    padding: 0.3rem 0.8rem;
  }
}

@media (min-width: 768px) and (hover: hover) {
  .sidenav__item:not(.is-active) a:hover {
    opacity: 1;
  }
}

/* ============================================================
   About Us Section
   ============================================================ */
.about {
  position: relative;
  padding: 8rem var(--padding-sp) var(--section-gap);
}

.about__inner {
  position: relative;
  z-index: 1;
}

/* 縦文字：SP非表示 */
.about__vert-text {
  /* display: none; */
}
.about__vert-text {
    display: block;
    position: absolute;
    right: 36px;
    top: 6rem;
    writing-mode: vertical-rl;
    font-family: var(--font-en);
    font-size: 1rem;
    font-weight: 400;
    letter-spacing: 0.18em;
    /* color: var(--color-green); */
    color: var(--color-white);
    /* opacity: 0.7; */
    z-index: 2;
}

.about__content {
  flex: 1;
}

.section-title {
  font-family: var(--font-en);
  font-size: clamp(2.4rem, 5vw, 4rem);
  font-weight: 700;
  font-weight: 400;
  color: var(--color-green);
  letter-spacing: 0.05em;
  margin-bottom: 3rem;
}

.about__image {
  width: 100%;
  margin-bottom: 3rem;
  /* overflow: hidden; */
  position: relative;
  /* right: calc(-1 * var(--padding-sp)); */
}

.about__image img {
  width: 100%;
  /* height: 18rem; */
  object-fit: cover;
  width: calc(100% + var(--padding-sp));
  max-width: none;
}

.about__text {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  /* margin-bottom: 3rem; */
}

.about__text p {
  font-family: var(--font-jp);
  font-size: 1.4rem;
  font-weight: 400;
  line-height: 1.8;
  color: var(--color-text-dark);
}

.about__tags {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.about__tag {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.2rem 1.4rem;
  background-color: var(--color-accent);
  font-family: var(--font-jp);
  font-size: 1.2rem;
  font-weight: 500;
  color: var(--color-green);
  text-align: center;
  line-height: 1.4;
}

@media (min-width: 768px) {
  .about {
    padding: 8rem var(--padding-pc) var(--section-gap) var(--content-padding-left);
    position: relative;
  }

  /* 縦書きテキスト */
  .about__vert-text {
    right: 150px;
    font-size: 1.4rem;
    top: 12rem;
  }

  /* 画像：右端まで */
  .about__image {
    /* position: relative; */
    /* right: calc(-1 * var(--padding-pc)); */
    /* width: calc(100% + var(--padding-pc)); */
    /* overflow: hidden; */
    margin-bottom: 3rem;
  }

  .about__image img {
    height: 40rem;
    width: 100%;
    object-fit: cover;
    width: calc(100% + var(--padding-pc));
  }

  .about__tags {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.2rem;
  }

  .about__tag {
    padding: 1.4rem 2rem;
    font-size: 1.3rem;
  }
}

@media (min-width: 768px) and (hover: hover) {
  .about__sidenav-item:not(.is-active) a:hover {
    opacity: 1;
  }

  .about__tag:hover {
    background-color: var(--color-green);
    color: var(--color-white);
  }
}

/* ============================================================
   ATELIER
============================================================ */
.atelier {
  padding-top: 0px;
}
.atelier a {
  transition: .3s;
}
.atelier a:hover {
  opacity: 0.8;
}

/* ============================================================
   共通リンクブロック（archive・contact）
   ============================================================ */
.section-link {
  /* width: 100%; */
}

.section-line {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid currentColor;
  padding-bottom: 5px;
  width: 100%;
}

.section-link__label {
  font-family: var(--font-en);
  font-size: clamp(1.4rem, 2.5vw, 2rem);
  font-weight: 700;
  font-weight: 400;
  letter-spacing: 0.1em;
  /* text-transform: uppercase; */
}

.section-link__arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: transform 0.3s ease;
}

.section-link__arrow svg {
  width: 1.8rem;
  height: 1.8rem;
}

@media (min-width: 768px) {
  .section-link__arrow svg {
    width: 2rem;
    height: 2rem;
  }
}

@media (min-width: 768px) and (hover: hover) {
  .archive__link:hover .section-link__arrow,
  .contact__inner:hover .section-link__arrow {
    transform: translateX(6px);
  }
  .section-line {
    padding-bottom: 12px;
    padding-right: 12px;
  }
}

/* ============================================================
  Archive Section
  ============================================================ */
.archive {
  padding: 0 var(--padding-sp) var(--section-gap);
  position: relative;
}

.archive_list {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  row-gap: 2rem;
}

@media (min-width: 768px) {
  .archive_list {
    row-gap: 3rem;
  }
}

/* bg-image化：imgタグなし、擬似要素でオーバーレイ */
.archive__link {
  display: block;
  position: relative;
  background-size: cover;
  background-position: center;
  overflow: hidden;
  width: 100%;
  /* min-height: 24rem; */
}

/* 背面：背景画像（z-index 0） */
.archive__link::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url('../images/archive_2019.jpg');
  background-size: cover;
  background-position: center;
  transition: transform 0.6s ease;
  z-index: 0;
}

/* 中間：スクリーン（画像の上・テキストの下）＝黒の透過 */
.archive__link::after {
  content: '';
  position: absolute;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.35);
  z-index: 1;
  pointer-events: none;
}

/* 各Works項目の背景画像（差し替え可） */
.archive__link_island::before  { background-image: url('../images/2021-1/uchiyama_03.jpg'); }
.archive__link_journey::before { background-image: url('../images/archive_2022.jpg'); }
.archive__link_film::before    { background-image: url('../images/2024/hero-barakan.jpg'); }
.archive__link_iff::before     { background-image: url('../images/archive_2019.jpg'); }

@media (hover: hover) {
  .archive__link:hover::before {
    transform: scale(1.05);
  }
}

/* 前面：section-link（テキスト）をスクリーンの上に表示 */
.archive__link .section-link {
  position: relative;
  z-index: 2;
  color: var(--color-white);
  padding: 5rem 2rem 5rem;
  border-bottom-color: rgba(255, 255, 255, 0.7);
  margin: 0;
  align-items: flex-end;
  /* min-height: 24rem; */
}

.archive__link .section-link__label {
  font-size: clamp(1.3rem, 2.2vw, 1.6rem);
}

@media (min-width: 768px) {
  .archive {
    padding: 0 var(--padding-pc) var(--section-gap) var(--content-padding-left);
  }

  .archive__link {
    width: 49%;
    /* min-height: 32rem; */
  }

  .archive__link .section-link {
    padding: 10rem 4rem;
    /* min-height: 32rem; */
  }

  @media (hover: hover) {
    .archive__link:hover {
      background-size: 105%;
    }
  }
}

/* ============================================================
   Contact Section
   ============================================================ */
.contact {
  padding: 0 var(--padding-sp) var(--section-gap);
}

.contact__inner {
  display: block;
  background-color: var(--color-white);
  text-decoration: none;
  color: var(--color-text-dark);
}

.contact__inner .section-link {
  padding: 5rem 3rem;
}

@media (min-width: 768px) {
  .contact {
    padding: 0 var(--padding-pc) var(--section-gap) var(--content-padding-left);
  }

  .contact__inner .section-link {
    padding: 10rem 8rem;
  }
}

/* ============================================================
   フェードイン（スクロール表示）
   ※ JS有効時のみ隠す（.js は <head> の即時スクリプトで付与）
   ============================================================ */
.js .fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.9s ease, transform 0.9s ease;
  will-change: opacity, transform;
}
.js .fade-in.is-visible {
  opacity: 1;
  transform: none;
}
@media (prefers-reduced-motion: reduce) {
  .js .fade-in {
    opacity: 1;
    transform: none;
    transition: none;
  }
}