@charset "UTF-8";
/* CSS Document */

/* =========================
   Base
========================= */
:root{
  --drawer-w: 82vw;
  --drawer-max: 360px;
  --bp: 820px;            /* ここ以下をスマホ扱い */
  --brand: #00a4d3;       /* シアン */
}

*{ box-sizing: border-box; }
body{
  margin:0;
  font-family: system-ui, -apple-system, "Hiragino Kaku Gothic ProN", "Noto Sans JP", sans-serif;
  color:#111;
}
a{ color: inherit; text-decoration: none; }

/* =========================
   Header
========================= */
.site-header{
  position: sticky;
  top: 0;
  z-index: 50;
  background: #fff;
}
.header-inner{
  height: 80px;
  max-width: 100%;
  margin: 0 auto;
  padding: 0 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

/* 左側ロゴ枠 */
.logo{
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.logo-placeholder{
  width: 180px;
  height: auto;
  display: grid;
  place-items: center;
}
.logo-placeholder img{ width: 100%; }

/* =========================
   Hamburger
========================= */
.hamburger{
  display: none; /* PCでは非表示 */
  width: 44px;
  height: 44px;
  background: #fff;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  position: relative;
  border: none;
    z-index: 10003;
}
.hamburger span{
  position: absolute;
  width: 18px;
  height: 2px;
  background: #111;
  border-radius: 2px;
  transition: transform .2s ease, opacity .2s ease, top .2s ease;
}
.hamburger span:nth-child(1){ top: 16px; }
.hamburger span:nth-child(2){ top: 21px; }
.hamburger span:nth-child(3){ top: 26px; }

body.drawer-open .hamburger span:nth-child(1){ top: 21px; transform: rotate(45deg); }
body.drawer-open .hamburger span:nth-child(2){ opacity: 0; }
body.drawer-open .hamburger span:nth-child(3){ top: 21px; transform: rotate(-45deg); }

/* =========================
   Overlay
   - navより必ず下（SPの“どこ押しても閉じる”事故対策）
========================= */
.overlay{
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.75);
  opacity: 0;
  pointer-events: none;
  transition: opacity .2s ease;
  z-index: 60;
}
body.drawer-open .overlay{
  opacity: 1;
  pointer-events: auto;
}

/* =========================
   Nav (共通)
========================= */
.site-nav{ display: flex; align-items: center; }

/* ul/li reset */
.site-nav .nav-list,
.site-nav .sub-menu{
  list-style: none;
  margin: 0;
  padding: 0;
}
.site-nav .nav-item{ position: relative; }

/* =========================
   PC: 横並び + ドロップダウン
========================= */
.site-nav .nav-list{
  display: flex;
  align-items: center;
  gap: 18px;
}

/* 1階層目リンク */
.site-nav .nav-list > .nav-item > .nav-link{
  padding: 0 10px;
  display: inline-block;
  line-height: 80px;
}
.site-nav .nav-link:hover{
  color: #00b1d8;
  transition: all .5s ease 0s;
}

/* ===== PC：ドロップダウン（黒） ===== */
@media (min-width: 821px){
  .site-nav .sub-menu{
    position: absolute;
    top: calc(100% + 10px);
    left: 50%;
    transform: translateX(-50%) translateY(8px);
    min-width: 320px;
    background: #000;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity .18s ease, transform .18s ease, visibility .18s ease;
    z-index: 9999;
  }

  .site-nav .nav-item.has-children:hover > .sub-menu,
  .site-nav .nav-item.has-children:focus-within > .sub-menu{
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateX(-50%) translateY(0);
  }

  .site-nav .sub-menu > .nav-item > .nav-link{
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 15px;
    color: #fff;
    font-weight: normal;
    font-size: 14px;
  }

  .site-nav .sub-menu > .nav-item:hover > .nav-link,
  .site-nav .sub-menu > .nav-item:focus-within > .nav-link{
    background: var(--brand);
    color: #fff;
  }

  /* 2階層目：右にフライアウト */
  .site-nav .sub-menu .sub-menu{
    top: 0;
    left: 100%;
    transform: translateY(0);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
  }

  .site-nav .sub-menu .nav-item.has-children:hover > .sub-menu,
  .site-nav .sub-menu .nav-item.has-children:focus-within > .sub-menu{
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
  }

  /* 子を持つ項目に矢印 */
  .site-nav .sub-menu .nav-item.has-children > .nav-link::after{
    content: "›";
    font-size: 18px;
    opacity: .9;
  }

  /* PCでは生成トグルを完全に非表示（保険） */
  .site-nav .submenu-toggle{
    display: none !important;
    visibility: hidden !important;
    pointer-events: none !important;
  }

  /* PC: ドロップダウンを親の真下（左寄せ）にする */
  .site-nav .nav-list > .nav-item.has-children > .sub-menu{
    left: 0 !important;
    right: auto !important;
    top: 100% !important;
    transform: translateY(0) !important;
    margin-top: 0;
    min-width: 280px;
    background: #000;
    z-index: 9999;
  }

  /* hover/フォーカスで表示（opacity/visibility制御の保険） */
  .site-nav .nav-item.has-children:hover > .sub-menu,
  .site-nav .nav-item.has-children:focus-within > .sub-menu{
    opacity: 1 !important;
    visibility: visible !important;
    pointer-events: auto !important;
  }

  /* 3階層目も右に */
  .site-nav .sub-menu .sub-menu{
    top: 0 !important;
    left: 100% !important;
    right: auto !important;
    transform: none !important;
    min-width: 280px;
  }
}

/* =========================
   SP: ドロワー + アコーディオン（作り直し版）
========================= */
@media (max-width: 820px){
  /* ヘッダー高さ調整 */
  .header-inner{ height: 60px; }
  .hamburger{ display: inline-flex; }
  .logo-placeholder{ width: 120px; }
    
    body.drawer-open .hamburger{background: #000;}
    body.drawer-open .hamburger span{background: #fff;}

  /* ★ 重要：SPではヘッダー“箱”をoverlayより上へ */
  .site-header{ z-index: 10000; }

  /* overlayはnavより下 */
  #overlay.overlay{ z-index: 9998; }

  /* navを固定ドロワー化（overlayより上） */
  #siteNav.site-nav{
    position: fixed;
    top: 0;
    right: 0;
    height: 100vh;
    width: min(var(--drawer-w), var(--drawer-max));
    background: #000;
    transform: translateX(105%);
    transition: transform .25s ease;
    z-index: 10002;
    display: block;
    padding: 64px 0 20px;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    overscroll-behavior: contain;
  }
  body.drawer-open #siteNav.site-nav{
    transform: translateX(0);
  }

  /* リスト縦並び */
  #siteNav .nav-list{ display:block; }
  #siteNav .nav-item{ border-bottom: 1px solid rgba(255,255,255,.35); }

  /* 1行：リンク（右にトグル領域を空ける） */
  #siteNav .nav-link{
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 16px;
    color: #fff;
    font-size: 14px;
    font-weight: normal;
    line-height: 1.2 !important; /* 60px固定は外す（崩れ防止） */
    width: 100%;
    position: relative;
    z-index: 1;
  }

  /* ＋ / − ボタン（JSで挿入する） */
  #siteNav .submenu-toggle{
    position: absolute;
    right: 6px;
    top: 0;
    /*transform: translateY(-50%);*/
    width: 48px;
    height: 48px;
    border: 0;
    background: transparent;
    color: #fff;
    font-size: 16px;      /* 見た目は好みでOK */
    line-height: 1;
    cursor: pointer;
    z-index: 2;
    pointer-events: auto;
    touch-action: manipulation;
  }

  /* open状態 */
  #siteNav .nav-item.is-open > .nav-link{ background:#000; }
  #siteNav .nav-item.is-open > .sub-menu{
    background: var(--brand);
  }

  #siteNav .nav-item.is-open > .sub-menu > .nav-item{
    border-bottom: none;
    border-top: 1px solid rgba(255, 255, 255, .35);
  }
  #siteNav .nav-item.is-open > .sub-menu .nav-link{
    background: var(--brand);
    border-bottom: 0;
  }

  /* ▼ アコーディオンの“ぬるっと”開閉（displayを使わない） */
  #siteNav .sub-menu{
    display: block;            /* 常にblock（隠すのは高さで） */
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    transform: translateY(-4px);
    transition: max-height .5s ease, opacity .3s ease, transform .5s ease;
    will-change: max-height;
  }

  /* open時 */
  #siteNav .nav-item.is-open > .sub-menu{
    max-height: 900px;         /* 十分大きめ（階層が多いなら増やす） */
    opacity: 1;
    transform: translateY(0);
  }

  /* 2階層目以降インデント */
  #siteNav .sub-menu .nav-link{
    padding-left: 28px;
  }
  #siteNav .sub-menu .sub-menu .nav-link{
    padding-left: 40px;
  }

  /* 子を持つリンクには「→」は出さない（＋があるため） */
  #siteNav .nav-item.has-children > .nav-link::after{ content: ""; }

  /* 子を持たない項目は右に → */
  #siteNav .nav-item:not(.has-children) > .nav-link::after{
    content: "→";
    font-size: 16px;
    opacity: .95;
    margin-right: 7px;
  }
}