/**************************************************
			header_top
**************************************************/


    :root{
  --line: rgba(0,0,0,0.06);
  --text: #4a3a2f;
  --text-strong: #2d2118;
}

/* ===== ヘッダー共通 ===== */
/* まずPC（960px以上）は明示的に sticky */
@media (min-width: 960px){
  .top_header{
    position: sticky;
    top: 0;
  }
  body{
    padding-top: 0;
  }
}

/* SP（959px以下）だけ fixed */
@media (max-width: 959px){
  .top_header{
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: #fff !important;      /* 背景は親に持たせる */
    border-bottom: 1px solid var(--line);
  }
  body{
    padding-top: 68px; /* SPヘッダー高さ */
  }
}




.top_header__inner{
  height: 90px;            /* PC確定 */
  max-width: 980px;
  margin: 0 auto;
  padding: 0 24px;
  display:flex;
  align-items:center;
  justify-content:space-between;
}

.header__logo img{
  height: 30px;
  width:auto;
  display:block;
}

/* ===== PCナビ ===== */
.pc-nav{
  display:flex;
  align-items:center;
  gap: 28px;
}
.header__nav a{
  position: relative;
  color: var(--text);
  text-decoration:none;
  letter-spacing: 0.05em;
  transition: color .25s ease;
}

.header__nav a::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:-8px;
  width:0;
  height:2px;
  background: var(--text);
  transform: translateX(-50%);
  transition: width .25s ease;
}

.header__nav a:hover{
  color: var(--text-strong);
}
.header__nav a:hover::after{
  width: 60%;
}

/* 現在地 */
.header__nav a.is-active::after{
  width: 60%;
}

/* ===== ハンバーガー（PCでは非表示） ===== */
.sp-only{ display:none; }

.hamburger.sp-only {
  display: none;
}

@media screen and (max-width: 767px) {
  .hamburger.sp-only {
    display: grid;   /* ← ここ重要：noneを上書き */
  }
}

.hamburger{
  width: 24px;
  height: 18px;
  display:grid;
  gap: 6px;
  padding:0;
  border:0;
  background:transparent;
  cursor:pointer;
}
.hamburger span{
  display:block;
  height:2px;
  background:#333;
  border-radius:1px;
}

/* ===== SPメニュー（オーバーレイ＋パネル） ===== */
.menu-overlay{
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.25);
  opacity: 0;
  pointer-events: none;
  transition: opacity .25s ease;
  z-index: 999;
}

.sp-menu{
  position: fixed;
  top: 0;
  right: -360px;
  width: min(86vw, 360px);
  height: 100vh;
  height: 100dvh;
  background: #fff;
  transition: right .25s ease;
  z-index: 1000;
  border-left: 1px solid var(--line);
}

.menu-overlay.is-open{
  opacity: 1;
  pointer-events: auto;
}
.sp-menu.is-open{
  right: 0;
}

.sp-menu__top{
  height: 68px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding: 0 16px;
  border-bottom: 1px solid var(--line);
}

.sp-menu__logo img{
  height: 30px;
  width:auto;
  display:block;
}

.sp-menu__close{
  border:0;
  background:transparent;
  font-size: 26px;
  line-height: 1;
  cursor:pointer;
  color:#333;
}

.sp-menu__nav a{
  display:flex;
  align-items:center;
  height: 60px;
  padding: 0 16px;
  color:#333;
  text-decoration:none;
  border-bottom: 1px solid var(--line);
  letter-spacing: 0.04em;
}
.sp-menu__nav a:active{
  background: rgba(0,0,0,0.03);
}

/* ===== SP切り替え ===== */
@media screen and (max-width: 959px) {
  .top_header__inner{
    height: 68px;           /* SPヘッダー高さ */
    padding: 0 16px;
  }

  .pc-nav{ 
    display:none; 
  }
  .sp-only{ 
    display:block; 
  }
}

body#etcetra #main_nav{ display:none; }

/* ===== 下層（etcetra）は旧レイアウト維持：固定ヘッダーを無効 ===== */
body#etcetra .top_header{
  position: static !important;
  top: auto !important;
  left: auto !important;
  right: auto !important;
}

body#etcetra{
  padding-top: 0 !important; /* fixedヘッダー用の余白を殺す */
}

/* 下層はSPメニュー運用しないなら、ハンバーガーも消す */
body#etcetra .hamburger{ display:none !important; }
body#etcetra .pc-nav{ display:flex !important; }

body#etcetra .top_header{
  position: static !important;
}
body#etcetra{ padding-top: 0 !important; }