@font-face {
  font-family: 'LINESeedJP';
  src: url('/font/font_directly/we-are-mother/LINESeedJP_OTF_Rg.woff2') format('woff2');
  font-weight: 400; /* Regular */
}

@font-face {
  font-family: 'LINESeedJP';
  src: url('/font/font_directly/we-are-mother/LINESeedJP_OTF_Th.woff2') format('woff2');
  font-weight: 100; /* Thin */
}

@font-face {
  font-family: 'LINESeedJP';
  src: url('/font/font_directly/we-are-mother/LINESeedJP_OTF_Bd.woff2') format('woff2');
  font-weight: 700; /* Bold */
}

@font-face {
  font-family: 'LINESeedJP';
  src: url('/font/font_directly/we-are-mother/LINESeedJP_OTF_Eb.woff2') format('woff2');
  font-weight: 800; /* Extra Bold */
}

body {
    width: 100vw;
    height: auto;
    font-family: 'LINESeedJP', sans-serif;
    font-weight: lighter;
    opacity: 0;
}
html.fade-in body {
  opacity: 1;
  transition: opacity .5s ease; /* ← 好みで時間調整 */
}
html.is-leaving body { opacity: 0; }

.cvr{
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: block;
    z-index: 2;
}
.menus.gray-out .cvr { pointer-events: none; }
.site-header{
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 30px;
    z-index: 10;
    opacity: 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.nav ul{
  display: flex;
  gap: 50px;
  align-items: center;
  font-size: 14px;
}
.nav ul li{
  line-height: 1.2;;
}
.logo{
    width: 100%;
    max-width: 130px;
}

.section.hero,
.section.menu,
.section.comment{
    position: relative;
    width: 100%;
    aspect-ratio: 16/9;
}
.section.menu{
    height: 100dvh;
    aspect-ratio: auto;
    background: white;
}
.section.comment{
    height: auto;
    aspect-ratio: auto;
    padding: 0 30px;
    padding-top: 200px;
    padding-bottom: 100px;
    opacity: 0;
}
.section.comment .under-title{
    font-weight: 400;
    font-size: 24px;
    width: 100%;
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.6;
    letter-spacing: 1.5px;
    color: #000;
    margin-bottom: 50px;
}
.section.comment p{
    width: 100%;
    max-width: 800px;
    margin: 0 auto;
    font-size: 16px;
    line-height: 1.6;
    letter-spacing: 1.5px;
    color: #000;
}
.logo-hero{
    position: absolute;
    top: 50%;
    left: 8vw;
		will-change: transform;
		backface-visibility: hidden;
    width: 40vw;
    z-index: 1;
}
.logo-hero h1{
    cursor: pointer;
}
.logo-hero img{
    width: 100%;
}
.section-wrap{
    width: 100%;
    padding: 30px;
}
.section{
    width: 100%;
}
.section.inner{
    min-width: 1100px;
    background-color: antiquewhite;
    height: 100px;
}

.menu-inner{
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 20px;
}
.menus{
    width: calc(100% / 3);
		height: 100%;
    text-align: center;
    font-size: 28px;
    line-height: 1.3;
    letter-spacing: 1.5px;
    padding: 30px;
		opacity: 0;
  	will-change: opacity;
		display: flex;
    justify-content: center;
    align-items: center;
}
.menus.en{
    font-family: "futura-pt", sans-serif;
    font-weight: lighter;
}
.menus.gray-out{
    color: #a1a1a1;
    pointer-events: none;
}
.menus.gray-out .b_circle{
    background: #E0E0E0;
}

.b_circle{
    width: 70px;
    height: 70px;
    border-radius: 100px;
    background: #EEC2D4;

    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    -webkit-transform: translate(-50%, -50%);
    -ms-transform: translate(-50%, -50%);

    transition: all 0.3s ease;
}
.menus:not(.gray-out):hover .b_circle {
  width: 67px;
  height: 67px;
}

.back-button-wrap{
    width: fit-content;
    margin: 0 auto;
    margin-top: 50px;
}
.back-button{
    padding: 50px;
    cursor: pointer;
}

.site-footer{
  width: 100%;
  text-align: center;
  padding-top: 20px;
  padding-bottom: 15px;
  font-size: 14px;
}

@media (max-width: 960px) {
    .section.menu {
        aspect-ratio: auto;
        height: 100dvh;
    }
    .menu-inner{
        flex-flow: column;
    }
    .menus{
        width: 100%;
        height: calc(100% / 3);
        display: flex;
        justify-content: center;
        align-items: center;
    }
    .section.comment{
        padding-top: 150px;
    }
}


  /* hambuger */
  :root{
    --size: 30px;     /* ボタン一辺（偶数推奨） */
    --stroke: 1.5px;    /* 線の太さ（偶数推奨） */
    --gap: 4px;       /* 初期の上下距離（中心からの距離） */
    --color:#111;
    --radius:999px;
    --dur:.22s;
  }


.hamburger-nav-menu{
  width: 100%;
  height: 100dvh;
  background: white;
  position: absolute;
  top: 0;
  z-index: 100000;

  display: none;
}
.hamburger-nav{
  display: none;
}

  .hamburger-nav-menu-close{
    position: fixed;
    width: var(--size);
    height: var(--size);
    cursor: pointer;
    display: block;
    z-index: calc(infinity);
    opacity: 1;
    top: 20px;
    right: 30px;
  }
  .hamburger-nav-menu-close span {
    position: absolute;
    left: 0;
    right: 0;
    top: 50%;
    height: var(--stroke);
    background: var(--color);
    border-radius: var(--radius);
    transform-origin: 50% 50%;
    transition: transform var(--dur) ease, opacity var(--dur) ease;
    will-change: transform;
  }
  /* 初期：上下に“だけ”ずらす（回転ゼロ） */

  /* 開いたら：中心に揃えてから回転（translateYを0にしてから45/-45deg） */
  .hamburger-nav-menu-close span:nth-child(1){ transform: translateY(0) rotate(45deg); }
  .hamburger-nav-menu-close span:nth-child(2){ transform: translateY(0) rotate(-45deg); }

@media (max-width: 768px) {
  .site-header{
  }
  .nav{
    display: none;
  }
  .logo{
      width: 100%;
      max-width: 130px;
  }

  .hamburger-nav{
    position:relative;
    width:var(--size);
    height:var(--size);
    cursor:pointer;
    display: block;
  }

  .hamburger-nav-menu {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity .5s ease, visibility .5s ease;
    display: block;
  }
  .hamburger-nav-menu .menu-inner{
    padding-top: 100px;
    padding-bottom: 100px;
  }
  .hamburger-nav-menu .menus{
    opacity: 1;
  }
  .hamburger-nav-menu .section.menu{
    position: fixed;
    top: 0;
    left: 0;
  }

  .hamburger-nav-menu.is-open {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
  }

  /* 2本線：常に中心に軸を置く */
  .hamburger-nav span{
    position:absolute;
    left:0; right:0;
    top:50%;                       /* まず中心へ */
    height:var(--stroke);
    background:var(--color);
    border-radius:var(--radius);
    transform-origin:50% 50%;      /* 回転軸＝ど真ん中 */
    transition: transform var(--dur) ease, opacity var(--dur) ease;
    will-change: transform;
  }

  /* 初期：上下に“だけ”ずらす（回転ゼロ） */
  .hamburger-nav span:nth-child(1){ transform: translateY(calc(-1 * var(--gap))); }
  .hamburger-nav span:nth-child(2){ transform: translateY(var(--gap)); }

  /* 開いたら：中心に揃えてから回転（translateYを0にしてから45/-45deg） */
  .hamburger-nav.active span:nth-child(1){ transform: translateY(0) rotate(45deg); }
  .hamburger-nav.active span:nth-child(2){ transform: translateY(0) rotate(-45deg); }

  /* スクロール禁止 */
  .no-scroll {
    overflow: hidden;
    height: 100%;
  }
}




/* for animation */
.logo-hero,
.silhouette-hero {
  opacity: 0;
  transition: opacity 1s ease;
}

.logo-hero.show,
.silhouette-hero.show {
  opacity: 1;
}

.logo-hero {
  will-change: transform;
  backface-visibility: hidden;
  transform: translate3d(0,0,0); /* チラつき防止 */
}

.section.comment .under-title,
.section.comment .comment-text {
  opacity: 0;
  will-change: opacity;
}

/* for menu-modal */
.menu-modal{
  position: fixed; inset: 0; z-index: 1000;
  background: transparent;        /* うっすら暗くしたければ rgba(0,0,0,.35) に */
  opacity: 0; visibility: hidden; pointer-events: none;
  transition: opacity .25s ease, visibility 0s linear .25s; /* GSAPなしの保険 */
}
.menu-modal.is-open{
  opacity: 1; visibility: visible; pointer-events: auto;
  transition: opacity .25s ease;
}

/* スクロールロック用（JSで position:fixed にするので overflow:hidden だけでもOK） */
body.is-modal-open{ overflow: hidden; }

/* 閉じるボタン（任意） */
.menu-modal__close{
  position: absolute; top: 16px; right: 16px; z-index: 1;
  background: none; border: none; font-size: 24px; line-height: 1; cursor: pointer;
}

.f-nav{
  margin-bottom: 15px;
}