/* ========================
   Layout
   ページレイアウト、サイドメニュー、フッターなど
   ======================== */

/* === Page Layout === */
.o-page-layout {
  position: relative;
  width: 100%;
  isolation: isolate;
}

.o-main-stack {
  --main-content-max-width: 1000px;
  --child-content-max-width: 1000px;
  --main-content-gutter: 40px;
  display: flex;
  flex-direction: column;
  gap: var(--section-gap);
  padding: 0 0 120px;
}

.o-main-stack > section {
  width: calc(100% - (var(--side-rail-width) * 2));
  margin-left: auto;
  margin-right: auto;
  padding: 0 var(--main-content-gutter);
  min-height: var(--section-item-min-height, var(--section-min-height));
  display: flex;
  align-items: flex-start;
  justify-content: center;
}

.o-main-stack > .c-section-intro {
  width: calc(100% - (var(--side-rail-width) * 2));
  margin-left: auto;
  margin-right: auto;
  padding: 0 var(--main-content-gutter);
}

.o-main-stack > .c-section-intro + .c-top-content-section {
  margin-top: 100px;
}

.o-hero {
  min-height: var(--section-min-height);
  position: relative;
  overflow: hidden;
}

.o-main-stack > .o-hero {
  width: 100%;
  min-height: 100vh;
  padding: 0;
  align-items: center;
}

@media (max-width: 500px) {
  #hero.o-hero {
    --hero-mobile-collapse-progress: 0;
    --hero-mobile-expanded-height: calc(100vw * var(--hero-video-responsive-ratio, 0.5625));
    --hero-mobile-collapsed-ratio: calc(1 - (var(--hero-clip-top-ratio) + var(--hero-clip-bottom-ratio)));
    --hero-mobile-collapsed-height: calc(var(--hero-mobile-expanded-height) * var(--hero-mobile-collapsed-ratio));
    --hero-mobile-current-height: calc(
      var(--hero-mobile-expanded-height) -
      ((var(--hero-mobile-expanded-height) - var(--hero-mobile-collapsed-height)) * var(--hero-mobile-collapse-progress))
    );
    --hero-mobile-top-shift-ratio: calc(var(--hero-clip-top-ratio) * var(--hero-mobile-collapse-progress));
    min-height: var(--hero-mobile-current-height);
    height: var(--hero-mobile-current-height);
    align-items: flex-start;
  }

  #hero.o-hero .c-hero-video {
    height: var(--hero-mobile-expanded-height);
    transform: translateY(calc(-100% * var(--hero-mobile-top-shift-ratio)));
  }

  /* TOPページのみ: Scrollインジケーターを動画内下部中央に重ね、動画の縮小と同じ挙動で見切れさせる */
  body:not(.is-child-page) #hero.o-hero .c-scroll-indicator {
    position: absolute;
    top: 0;
    left: 50%;
    bottom: auto;
    height: var(--hero-mobile-expanded-height);
    justify-content: flex-end;
    padding-bottom: 28px;
    transform: translateX(-50%) translateY(calc(-100% * var(--hero-mobile-top-shift-ratio)));
  }

  /* レスポンシブ時は常に白固定 */
  body:not(.is-child-page) #hero.o-hero .c-scroll-indicator.is-outside-hero .c-scroll-indicator-text,
  body:not(.is-child-page) #hero.o-hero .c-scroll-indicator .c-scroll-indicator-text {
    color: #ffffff;
  }
}

/* === Footer === */
.o-site-footer {
  --footer-edge-gap: 34px;
  --footer-top-line-offset: 14px;
  --footer-top-line-thickness: 8px;
  position: relative;
  width: 100%;
  padding: calc(var(--footer-top-line-offset) + var(--footer-top-line-thickness) + var(--footer-edge-gap)) 24px
    var(--footer-edge-gap);
  background: #404e66;
}

.o-footer-top-line {
  position: absolute;
  top: var(--footer-top-line-offset);
  left: 0;
  right: 0;
  height: var(--footer-top-line-thickness);
  background: rgba(255, 255, 255, 0.78);
  pointer-events: none;
}

.o-site-footer-inner {
  width: min(1320px, 100%);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 30px;
}

.o-footer-nav {
  display: flex;
  flex-wrap: nowrap;
  align-items: flex-start;
  justify-content: center;
  gap: 40px;
  width: min(1160px, 100%);
}

.o-footer-nav-main {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 44px;
}

.o-footer-nav-policy {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  gap: 4px;
  padding-top: 16px;
  min-width: 120px;
  text-align: center;
}

.o-footer-nav-group {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 120px;
  --footer-parent-left-offset: 0px;
  gap: 4px;
}

.o-footer-nav-group > .c-footer-link {
  width: 100%;
}

.o-footer-subnav {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
  padding-left: 0;
  box-sizing: border-box;
  gap: 0px;
}

@media (max-width: 500px) {
  .o-site-footer {
    --footer-edge-gap: 24px;
    --footer-top-line-offset: 10px;
    --footer-top-line-thickness: 6px;
    padding: calc(var(--footer-top-line-offset) + var(--footer-top-line-thickness) + var(--footer-edge-gap)) 12px
      var(--footer-edge-gap);
  }

  .o-site-footer-inner {
    gap: 24px;
  }

  .o-footer-nav {
    flex-direction: column;
    align-items: center;
    gap: 24px;
  }

  .o-footer-nav-main {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    flex-wrap: nowrap;
    gap: 12px;
    width: auto;
    max-width: 100%;
  }

  .o-footer-nav-group {
    width: clamp(82px, 24vw, 138px);
  }

  .o-footer-nav-policy {
    flex-direction: row;
    align-items: center;
    justify-content: center;
    padding-top: 0;
    gap: 14px;
    width: 100%;
  }

  .o-footer-nav-policy .c-footer-link--policy {
    min-width: 0;
  }

  .o-footer-subnav {
    gap: 2px;
  }
}

/* === Side Menu === */

/* サイドメニュー非展開時の範囲 */
.o-side-rail {
  position: absolute;
  top: 0;
  bottom: 0;
  right: 0;
  width: var(--side-rail-width);
  visibility: visible;
  pointer-events: auto;
  z-index: calc(var(--layer-hero-copy) + 2);
}

.o-side-rail--left {
  left: 0;
  right: auto;
  pointer-events: none;
}

/* 初期配置・リサイズ同期中は遷移を無効化 */
body.is-side-layout-syncing .o-side-preview,
body.is-side-layout-syncing .o-side-menu-drawer,
body.is-side-layout-syncing .o-side-menu-panel {
  transition: none !important;
}

/* サイドメニュー非展開時 */
.o-side-preview {
  --side-preview-left-expand: 101px;
  --side-preview-initial-offset-x: 0px;
  --side-preview-menu-open-shift-x: 0px;
  position: absolute;
  top: 0;
  left: calc(-1 * var(--side-preview-left-expand));
  width: calc(var(--side-preview-viewport-width, 100vw) + var(--side-preview-left-expand));
  height: 100%;
  pointer-events: none;
  z-index: calc(var(--layer-hero-copy) + 1);
  opacity: 1;
  transform: translateX(var(--side-preview-initial-offset-x));
  transition: transform 0.6s;
  overflow: hidden;
}

body.is-loaded .o-side-preview {
  transform: translateX(
    calc(
      var(--side-preview-initial-offset-x) +
      var(--side-preview-viewport-width, 100vw) -
      var(--side-rail-width) +
      var(--side-preview-left-expand) +
      var(--side-preview-menu-open-shift-x)
    )
  );
}

/* サイドメニュー展開時 */
.o-side-menu-drawer {
  position: absolute;
  top: 0;
  bottom: 0;
  right: calc(var(--side-rail-width) - var(--side-menu-open-width));
  width: var(--side-menu-open-width);
  z-index: var(--layer-side-drawer);
  pointer-events: none;
  will-change: right;
  transition: right 0.45s cubic-bezier(0.16, 1, 0.3, 1);
  overflow: hidden;
}

.o-side-rail:not(.is-open) .o-side-menu-drawer .c-side-menu-image {
  opacity: 0;
}

.o-side-rail.is-open .o-side-menu-drawer {
  pointer-events: auto;
  right: 0;
}

.o-side-rail.is-open + .o-side-preview {
  --side-preview-menu-open-shift-x: calc(-1 * (var(--side-menu-open-width) - var(--side-rail-width)));
  opacity: 1;
}

/* サイドメニューの遷移ボタン群 */
.o-side-menu-panel {
  position: fixed;
  top: var(--side-menu-panel-top);
  right: var(--side-menu-main-right);
  width: var(--side-menu-panel-fit-width, calc(var(--side-menu-open-width) - 160px));
  max-height: calc(100vh - var(--side-menu-panel-top) - 20px);
  z-index: calc(var(--layer-side-drawer) + 1);
  transform: translateX(calc(var(--side-menu-open-width) - var(--side-rail-width)));
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
  pointer-events: none;
  overflow-x: hidden;
  overflow-y: auto;
  transition: transform 0.6s;
  will-change: transform;
}

.o-side-rail.is-open .o-side-menu-panel {
  transform: translateX(0);
  pointer-events: auto;
}

.o-side-menu-main {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--side-menu-main-gap);
}

.o-side-menu-sub {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
  margin-top: var(--side-menu-sub-margin-top);
}

.o-side-menu-group {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--side-menu-main-group-gap);
}

.o-side-submenu {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0px;
  margin-top: 2px;
}

.o-side-menu-group > .o-side-submenu {
  position: relative;
  padding-top: 3px;
}

.o-side-menu-group > .o-side-submenu::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  width: var(--side-menu-parent-child-divider-length);
  border-top: var(--side-menu-parent-child-divider-thickness) solid #2b313b;
  transform: translateX(-50%);
}

/* ハンバーガーボタン */
.c-hamburger-button {
  position: fixed;
  top: var(--hamburger-top);
  right: var(--hamburger-right);
  width: var(--hamburger-width);
  min-height: var(--hamburger-min-height);
  border: var(--hamburger-border);
  background: var(--hamburger-background);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
  z-index: 9999;
}

body.is-loading-complete .c-hamburger-button {
  opacity: 1;
  pointer-events: auto;
}

.o-side-rail.is-open .c-hamburger-button {
  z-index: 9999;
}

/* ハンバーガーボタンの線 */
.c-hamburger-line {
  width: var(--hamburger-line-width);
  height: var(--hamburger-line-height);
  background: var(--hamburger-line-color);
  display: block;
  transform-origin: center;
  transition: transform var(--hamburger-morph-duration) ease, opacity var(--hamburger-morph-duration) ease;
}

.o-side-rail.is-open .c-hamburger-line:nth-child(1) {
  transform: translateY(var(--hamburger-cross-offset)) rotate(45deg);
}

.o-side-rail.is-open .c-hamburger-line:nth-child(2) {
  opacity: 0;
}

.o-side-rail.is-open .c-hamburger-line:nth-child(3) {
  transform: translateY(calc(-1 * var(--hamburger-cross-offset))) rotate(-45deg);
}

@media (max-width: 500px) {
  .o-side-menu-panel {
    right: 0px;
    width: calc(var(--side-menu-open-width) - 12px);
    min-width: 160px;
    max-width: calc(100vw - 16px);
  }

  .o-side-rail.is-open .o-side-menu-panel {
    transform: translateX(0);
  }

  .o-side-menu-main,
  .o-side-menu-sub,
  .o-side-menu-group,
  .o-side-submenu {
    width: 100%;
  }
}

/* サイドメニューの遷移ボタン親 */
.c-side-menu-link {
  font-family: var(--font-zen-kaku);
  width: 100%;
  min-height: 18px;
  padding: 0px 10px;
  border: 1px solid rgba(30, 30, 30, 0);
  background: rgba(255, 255, 255, 0);
  color: #2b313b;
  text-decoration: none;
  text-align: center;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 400;
  font-size: var(--side-menu-main-font-size);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: font-weight 0.2s ease;
  letter-spacing: 0.1em;
}

/* サイドメニューの遷移ボタン子 */
.c-side-submenu-link {
  width: 100%;
  margin-left: 0;
  min-height: 18px;
  padding: 0px 10px;
  font-size: var(--side-menu-main-submenu-font-size);
}

.o-side-menu-sub .c-side-menu-link {
  font-size: var(--side-menu-sub-font-size);
}

.c-side-menu-link:hover {
  font-weight: 500;
}

/* サイドメニューの背景画像 */
.c-side-menu-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: left center;
  display: block;
}

.c-side-preview-svg {
  width: 100%;
  height: 100%;
  display: block;
}

.c-side-preview-mask-text {
  font-family: var(--font-manrope);
  font-size: 132px;
  font-weight: 700;
  letter-spacing: 1px;
}

.c-side-preview-loading-text {
  font-family: var(--font-manrope);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.08em;
}

.c-side-preview-loading-label {
  font-family: var(--font-manrope);
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0;
  color: #1a1a1a;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.08em;
  z-index: 2;
  pointer-events: none;
}


@media (max-width: 500px) {
  .o-main-stack {
    --section-item-min-height: clamp(180px, 42vw, 280px);
    --main-content-gutter: 10px;
    gap: 24px;
    padding: 0 0 84px;
  }

  .o-main-stack > section,
  .o-main-stack > .c-section-intro {
    padding: 0 var(--main-content-gutter);
  }

  .o-main-stack > .c-section-intro + .c-top-content-section {
    margin-top: clamp(10px, 6vw, 80px);
  }

  .o-side-preview {
    --side-preview-left-expand: 88px;
    left: calc(-1 * var(--side-preview-left-expand) + 4vw);
    width: calc(var(--side-preview-viewport-width, 100vw) + var(--side-preview-left-expand) - 12px);
  }
}