:root{
  --bg:#0e0e10;
  --bg-alt:#1b1d27;
  --bg-mid:#596475;
  --bg-light:#7c8394;

  --text:#f5f7fa;
  --muted:#c7ccda;
  --primary:#e9d2a6;

  --shadow:0 10px 30px rgba(0,0,0,.28);
  --radius:18px;
}

/* ================== ベース ================== */
*{box-sizing:border-box;}
html,body{
  margin:0;
  padding:0;
  background:var(--bg);
  color:var(--text);
  font-family:'Noto Sans JP',system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  line-height:1.6;
}
img{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;}

.container{width:min(1100px,92%);margin-inline:auto;}
.center{text-align:center;}
.rounded{border-radius:var(--radius);}
.shadow{box-shadow:var(--shadow);}
.strong{font-weight:700;}
.mt-16{margin-top:16px;}
.mt-32{margin-top:32px;}

/* ================== Topbar ================== */
.topbar{
  background:#0a0a0c;
  border-bottom:1px solid rgba(255,255,255,.06);
}
.topbar-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:8px 0;
}
.topbar-meta{
  margin:0;
  font-size:13px;
  color:var(--muted);
  line-height:1;
  padding:4px 0;
}
.topbar-right{
  display:flex;
  align-items:center;
  gap:12px;
}

/* 電話予約ボタン */
.gold-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:6px 16px;
  font-size:14px;
  font-weight:700;
  letter-spacing:.05em;
  border-radius:22px;
  background:linear-gradient(135deg,#e8d7a8 0%,#c9b37b 40%,#a58b54 100%);
  color:#1a1a1a;
  box-shadow:0 3px 10px rgba(0,0,0,0.28);
  text-shadow:0 1px 1px rgba(255,255,255,0.3);
  white-space:nowrap;
  transition:all .2s ease;
}
.gold-btn:hover{
  transform:translateY(-1px);
  box-shadow:0 5px 15px rgba(0,0,0,0.45);
  opacity:.96;
}

/* ================== Header / Nav ================== */
.site-header{
  position:sticky;
  top:0;
  z-index:50;
  background:rgba(11,11,13,.78);
  backdrop-filter:blur(8px);
  border-bottom:1px solid rgba(255,255,255,.08);
  box-shadow:0 8px 20px rgba(0,0,0,0.35);
}
.nav{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:10px 0;
}
.logo{
  font-weight:800;
  letter-spacing:.14em;
  font-size:18px;
}
.nav-list{
  display:flex;
  align-items:center;
  gap:18px;
  list-style:none;
  margin:0;
  padding:0;
}
.nav-toggle{
  display:none;
  background:none;
  border:1px solid rgba(255,255,255,.25);
  padding:6px 10px;
  border-radius:10px;
  color:var(--text);
}

/* PCナビ hover */
@media (min-width:768px){
  .nav-list a{
    position:relative;
    font-size:14px;
    letter-spacing:.06em;
    padding-bottom:2px;
  }
  .nav-list a::after{
    content:"";
    position:absolute;
    bottom:-4px;
    left:0;
    width:0;
    height:1px;
    background:var(--primary);
    transition:.25s;
  }
  .nav-list a:hover::after{
    width:100%;
  }
}

/* ================== HERO（PC/SP動画切替） ================== */
.hero{
  position:relative;
  width:100%;
  height:100vh;
  overflow:hidden;
  background:#0a172f;  /* 大理石動画となじむ紺色 */
}

/* 共通の動画スタイル */
.hero-video{
  position:absolute;
  top:0;
  left:0;
  width:100%;
  height:100%;
  object-fit:cover;
  z-index:0;
}

/* テキストレイヤー（今は空） */
.hero-inner{
  position:absolute;
  inset:0;
  z-index:1;
}

/* デフォルト：PC想定 → PC動画オン／SP動画オフ */
.hero-video-pc{display:block;}
.hero-video-sp{display:none;}

/* フェードイン */
.fade-in-hero{
  opacity:0;
  animation:heroIn 1s ease-out forwards;
}
@keyframes heroIn{
  to{opacity:1;}
}

/* ===== SP（〜767px）：SP動画だけ表示 ===== */
@media (max-width:767px){
  .hero{
    height:100vh;
  }
  .hero-video-pc{display:none;}
  .hero-video-sp{
    display:block;
    object-fit:cover;
    object-position:center top;
  }
}

/* ===== PC（1025px〜）：PC動画を少しズームしたい場合 ===== */
@media (min-width:1025px){
  .hero{
    height:100vh; /* ヘッダーと合わせてちょうど良い高さに調整 */
  }
  .hero-video-pc{
    transform:scale(1.0);   /* ← ズーム量（1.0〜1.3で好み調整） */
    transform-origin:center;
  }
}

/* ================== Section 共通 ================== */
.section{
  padding:72px 0;
  background:var(--bg);
}
.section.alt{
  background:linear-gradient(135deg,#1b1d27 0%,#2c3342 100%);
}
.section.mid{
  background:linear-gradient(180deg,#596475 0%,#7a8593 100%);
}
.section.light{
  background:linear-gradient(180deg,#7c8394 0%,#a1a7b3 100%);
}
.section-title{
  font-size:clamp(22px,4.5vw,30px);
  margin:0 0 10px;
}
.section-title .accent{color:var(--primary);}
.eyebrow.jp{
  margin:0 0 6px;
  font-size:13px;
  letter-spacing:.18em;
  color:var(--primary);
}
.script{
  margin:0 0 16px;
  font-family:serif;
  font-style:italic;
  letter-spacing:.04em;
  color:var(--primary);
  font-size:clamp(26px,5vw,40px);
}

/* ================== Concept ================== */
#concept.concept-bg{
  position:relative;
  background:url("assets/concept-bg.jpg") center top/cover no-repeat;
  background-attachment:fixed;
  padding:110px 0 130px;
}
#concept .concept-overlay{
  position:absolute;
  inset:0;
  background:linear-gradient(
    to bottom,
    rgba(0,0,0,0.65),
    rgba(0,0,0,0.9)
  );
}
.concept-panel{
  position:relative;
  z-index:2;
  max-width:420px;
  margin:0 auto;
  text-align:center;
}
#concept .concept-label{
  margin-bottom:26px;
}
#concept .concept-label-jp{
  margin:0;
  font-size:13px;
  letter-spacing:.18em;
  color:var(--primary);
}
#concept .concept-label-en{
  margin:0;
  font-family:serif;
  font-style:italic;
  font-weight:600;
  font-size:clamp(32px,5vw,40px);
  color:var(--primary);
}
.concept-lead{margin:0 0 10px;}
.concept-highlight{margin:0 0 22px;font-weight:700;}
.concept-highlight span{color:var(--primary);}
.concept-body{margin:0 0 14px;line-height:1.9;}

/* ================== Rooms ================== */

/* 見出し：ルーム / Room */
.rooms-heading{
  text-align:center;
  margin-bottom:40px;
}
.rooms-heading-jp{
  margin:0;
  font-size:13px;
  letter-spacing:.18em;
  color:var(--primary);
}
.rooms-heading-en{
  margin:4px 0 0;
  font-family:serif;
  font-style:italic;
  font-size:clamp(26px,5vw,40px);
  letter-spacing:.04em;
  color:var(--primary);
}

/* レイアウト本体 */
.rooms-wrap{
  display:flex;
  flex-direction:column;
  gap:60px;
}
.rooms-row{
  display:flex;
  align-items:center;
  gap:40px;
}

/* 画像側 */
.rooms-img{
  flex:1;
}
.rooms-card{
  width:100%;
  display:block;
  border-radius:24px;
  box-shadow:0 18px 40px rgba(0,0,0,0.5);
}

/* テキスト側 */
.rooms-text{
  flex:1;
}
.rooms-text p{
  margin:0;
  font-size:15px;
  line-height:1.9;
}

/* PC時に少し文字を大きく */
@media (min-width:1025px){
  .rooms-text p{
    font-size:16.5px;
    line-height:1.95;
  }
  .rooms-text .section-title{
    font-size:32px;
  }
}

/* ================== System ================== */
.system-grid{
  display:flex;
  gap:24px;
  margin-top:32px;
}
.system-item{
  position:relative;
  flex:1;
  border-radius:var(--radius);
  overflow:hidden;
  box-shadow:var(--shadow);
  min-height:320px;
}
.system-img{
  width:100%;
  height:100%;
  object-fit:cover;
}
.system-overlay{
  position:absolute;
  inset:0;
  padding:32px 24px;
  display:flex;
  align-items:center;
  justify-content:center;
  background:linear-gradient(
    to bottom,
    rgba(0,0,0,0.35),
    rgba(0,0,0,0.9)
  );
}
.system-text{
  text-align:center;
  font-size:16px;
  line-height:1.9;
  font-weight:500;
  text-shadow:0 2px 8px rgba(0,0,0,0.7);
}
.system-block-title{
  margin:0 0 10px;
  font-size:19px;
  font-weight:700;
}

/* ================== Access ================== */
.access-photo-wrap{
  margin-top:24px;
  display:flex;
  justify-content:center;
}
.access-photo{
  max-width:520px;
  width:100%;
  border-radius:18px;
  box-shadow:var(--shadow);
}
.access-address{margin-top:16px;}
.access-links{
  margin-top:18px;
  display:flex;
  gap:32px;
  justify-content:center;
  flex-wrap:wrap;
}
.access-col{min-width:240px;}
.access-col-title{
  display:flex;
  align-items:center;
  gap:6px;
  font-weight:700;
}
.access-icon{font-size:16px;}
.access-list{
  list-style:none;
  margin:0;
  padding:0;
  font-size:14px;
  line-height:1.8;
}
.access-line{color:var(--primary);}
.map-wrap{
  margin-top:16px;
  border-radius:18px;
  overflow:hidden;
  box-shadow:var(--shadow);
  height:360px;
}
.map-wrap iframe{
  width:100%;
  height:100%;
  border:0;
}

/* ================== Footer ================== */
.site-footer{
  background:#050608;
  padding:24px 0;
  border-top:1px solid rgba(255,255,255,0.1);
}

/* 上段：ブランド＋リンク / 下段：コピーライト全幅 */
.footer-inner{
  display:grid;
  grid-template-columns:auto 1fr auto;
  align-items:center;
  column-gap:24px;
  row-gap:4px;
}

.brand{
  font-weight:800;
  letter-spacing:.14em;
}

.footer-links{
  list-style:none;
  display:flex;
  gap:16px;
  justify-content:center;
  margin:0;
  padding:0;
}
.footer-links a{
  font-size:13px;
  opacity:.8;
}
.footer-links a:hover{
  opacity:1;
}

/* コピーライト1行センター */
.copy{
  grid-column:1 / -1;
  text-align:center;
  font-size:12px;
  color:rgba(255,255,255,0.65);
  margin-top:6px;
}

/* ================== SP（〜767px） ================== */
@media (max-width:767px){

  /* Topbar */
  .topbar-inner{
    flex-direction:row;
    align-items:center;
    justify-content:space-between;
    gap:8px;
  }
  .topbar-meta{
    font-size:11px;
    line-height:1.4;
  }

  /* Header */
  .logo{
    font-size:16px;
  }

  /* ナビ：ハンバーガー */
  .nav-toggle{
    display:inline-flex;
  }
  .nav-list{
    display:none;
    position:absolute;
    top:100%;
    right:0;
    flex-direction:column;
    width:65vw;
    max-width:260px;
    padding:14px 16px;
    border-radius:0 0 0 12px;
    background:#0b0c0e;
    box-shadow:var(--shadow);
  }
  .nav-list.is-open{
    display:flex;
  }

  /* Rooms 縦並び */
  .rooms-row{
    flex-direction:column;
    text-align:center;
  }

  /* System 縦並び */
  .system-grid{
    flex-direction:column;
  }
  .system-item{
    min-height:430px;
  }

  /* Access 縦並び */
  .access-links{
    flex-direction:column;
    align-items:flex-start;
  }

  /* Footer 中央寄せ */
  .footer-inner{
    grid-template-columns:1fr;
    text-align:center;
  }
}

/* ================== 汎用調整 ================== */
html{scroll-behavior:smooth;}
@media (min-width:1025px){
  .section{padding:80px 0;}
  #concept.section{padding:110px 0 130px;}
}

/* ================== 右下固定・電話ボタン ================== */
.call-fab{
  position:fixed;
  right:16px;
  bottom:16px;
  width:56px;
  height:56px;
  border-radius:50%;
  background:linear-gradient(135deg,#e8d7a8 0%,#c9b37b 40%,#a58b54 100%);
  box-shadow:0 6px 20px rgba(0,0,0,0.55);
  color:#1a1a1a;
  display:none;
  align-items:center;
  justify-content:center;
  font-size:24px;
  text-decoration:none;
  z-index:200;
  transition:all .2s ease;
}
.call-fab:hover,
.call-fab:active{
  transform:translateY(-1px);
  box-shadow:0 8px 24px rgba(0,0,0,0.7);
}
@media (max-width:767px){
  .call-fab{display:flex;}
}