/* =========================================================
   KYO. — Global Header / Nav
   ========================================================= */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  height: var(--header-h);
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: saturate(1.1) blur(6px);
  border-bottom: 1px solid var(--c-line-soft);
  z-index: 100;
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.site-header.is-hidden { transform: translateY(-100%); }
.site-header.is-scrolled { box-shadow: 0 6px 20px rgba(40,38,32,0.06); }

/* WordPress の管理バー（ログイン中のみ）と固定ヘッダーの重なりを避ける。
   静的プロトタイプでは .admin-bar が付かないので影響しない */
.admin-bar .site-header { top: 32px; }
@media screen and (max-width: 782px) {
  .admin-bar .site-header { top: 46px; }
}

.site-header__inner {
  height: 100%;
  max-width: var(--maxw-wide);
  margin-inline: auto;
  padding-inline: clamp(20px, 3vw, 44px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

/* Logo */
.brand { display: inline-flex; align-items: center; }
.brand img { width: auto; height: 34px; }

/* Nav */
.gnav__list { display: flex; align-items: stretch; }
.gnav__item { position: relative; }
.gnav__item + .gnav__item::before {
  content: "";
  position: absolute; left: 0; top: 50%;
  width: 1px; height: 30px; transform: translateY(-50%);
  background: var(--c-line);
}
.gnav__link {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  min-width: 92px;
  height: 100%;
  padding: 0 6px;
  color: var(--c-ink);
  transition: color var(--dur) var(--ease);
}
.gnav__link:hover { color: var(--c-gold); }
.gnav__icon { width: 24px; height: 24px; stroke: currentColor; fill: none; stroke-width: 1.5; }
.gnav__icon--fill { fill: currentColor; stroke: none; }

/* モバイルメニュー下部の実用ブロック（PCでは出さない） */
.gnav__foot { display: none; }
.gnav__label { font-size: 11.5px; letter-spacing: 0.06em; line-height: 1; }

/* Hamburger (mobile) */
.navtoggle { display: none; width: 44px; height: 44px; position: relative; z-index: 120; }
.navtoggle span {
  position: absolute; left: 9px; right: 9px; height: 1.5px; background: var(--c-ink);
  transition: transform 0.35s var(--ease), opacity 0.2s var(--ease);
}
.navtoggle span:nth-child(1) { top: 15px; }
.navtoggle span:nth-child(2) { top: 22px; }
.navtoggle span:nth-child(3) { top: 29px; }
body.nav-open .navtoggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
body.nav-open .navtoggle span:nth-child(2) { opacity: 0; }
body.nav-open .navtoggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---- Responsive ---- */
@media (max-width: 900px) {
  :root { --header-h: 66px; }
  .brand img { height: 28px; }
  .navtoggle { display: block; }

  /* ---- モバイルメニュー（全画面オーバーレイ） ----
     【重要】.site-header の backdrop-filter は position:fixed の子の基準ボックスを作るため、
     開いている間は外す。外さないとメニューがヘッダーの高さ(66px)に閉じ込められ、
     項目がヘッダー外にはみ出して背景の写真に重なる。 */
  body.nav-open { overflow: hidden; }
  body.nav-open .site-header {
    backdrop-filter: none; -webkit-backdrop-filter: none;
    background: transparent; border-bottom-color: transparent; box-shadow: none;
  }
  /* ロゴと閉じるボタンはオーバーレイより前面に置き、開いていても見えるようにする */
  .brand { position: relative; z-index: 120; }

  .gnav {
    position: fixed; inset: 0;
    background: var(--c-paper);
    display: flex; flex-direction: column; align-items: center; justify-content: center;
    padding: calc(var(--header-h) + 16px) var(--gutter) 34px;
    opacity: 0; visibility: hidden;
    transition: opacity 0.35s var(--ease), visibility 0.35s var(--ease);
    overflow-y: auto;
  }
  body.nav-open .gnav { opacity: 1; visibility: visible; }

  /* 背景に薄い葉っぱ色のグラデーションを敷いてサイトの世界観に寄せる */
  .gnav::before {
    content: ""; position: absolute; inset: 0; pointer-events: none;
    background:
      radial-gradient(120% 60% at 100% 0%,   rgba(143,163,130,0.16) 0%, transparent 60%),
      radial-gradient(110% 55% at 0% 100%,   rgba(180,154,86,0.14)  0%, transparent 62%);
  }

  .gnav__list {
    position: relative;
    flex-direction: column; gap: 0;
    width: min(320px, 82vw);
    text-align: left;
    margin-block: auto;   /* 上下に余白を分配＝リストは中央、下のブロックは最下部へ */
  }

  /* 下部の実用ブロック */
  .gnav__foot {
    display: block; position: relative;
    width: min(320px, 82vw); text-align: center;
    padding-top: 26px;
  }
  .gnav__tel {
    display: inline-flex; align-items: center; gap: 9px;
    font-size: 21px; font-weight: 700; letter-spacing: 0.04em; color: var(--c-ink);
  }
  .gnav__tel svg { color: var(--c-gold); }
  .gnav__hours { margin-top: 5px; font-size: 12px; letter-spacing: 0.04em; color: var(--c-ink-mute); }
  .gnav__privacy {
    display: inline-block; margin-top: 18px;
    font-size: 12.5px; letter-spacing: 0.06em; color: var(--c-ink-soft);
    border-bottom: 1px solid var(--c-line);
    padding-bottom: 2px;
  }
  .gnav__item + .gnav__item::before { display: none; }
  .gnav__item { border-bottom: 1px solid var(--c-line-soft); }
  .gnav__item:first-child { border-top: 1px solid var(--c-line-soft); }

  .gnav__link {
    position: relative;
    flex-direction: row; justify-content: flex-start; align-items: center;
    gap: 16px; min-width: 0; height: auto; padding: 19px 26px 19px 4px;
  }
  .gnav__icon { width: 21px; height: 21px; color: var(--c-gold); flex-shrink: 0; }
  .gnav__label { font-size: 16px; letter-spacing: 0.12em; }
  /* 右端の矢じり */
  .gnav__link::after {
    content: ""; position: absolute; right: 6px; top: 50%;
    width: 7px; height: 7px; margin-top: -4px;
    border-right: 1.5px solid var(--c-ink-mute); border-bottom: 1.5px solid var(--c-ink-mute);
    transform: rotate(-45deg);
    transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease);
  }
  .gnav__link:hover::after { transform: rotate(-45deg) translate(2px, 2px); border-color: var(--c-gold); }
  /* 現在地は金色＋太字 */
  .gnav__link[aria-current="page"] .gnav__label { color: var(--c-gold-dark); font-weight: 700; }

  /* 開いたときに項目を1つずつ立ち上げる */
  body.nav-open .gnav__item { animation: navIn 0.42s var(--ease) both; }
  body.nav-open .gnav__item:nth-child(1) { animation-delay: 0.06s; }
  body.nav-open .gnav__item:nth-child(2) { animation-delay: 0.11s; }
  body.nav-open .gnav__item:nth-child(3) { animation-delay: 0.16s; }
  body.nav-open .gnav__item:nth-child(4) { animation-delay: 0.21s; }
  body.nav-open .gnav__item:nth-child(5) { animation-delay: 0.26s; }
  @keyframes navIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }
}

@media (max-width: 900px) and (prefers-reduced-motion: reduce) {
  body.nav-open .gnav__item { animation: none; }
}