/* SAUNA HOUSE Yutagawa LP 共通スタイル */
:root {
  --bg: #f7f3ec;
  --paper: #ffffff;
  --ink: #23201c;
  --sub: #6b645a;
  --line: #e2dbcf;
  --wood: #a8622f;
  --wood-dark: #7d4520;
  --night: #1e2a2f;
  --radius: 14px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "Noto Sans JP", "Hiragino Sans", "Yu Gothic", sans-serif;
  font-size: 16px;
  line-height: 1.85;
  -webkit-text-size-adjust: 100%;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--wood-dark); }
h1, h2, h3 { font-family: "Zen Kaku Gothic New", "Noto Sans JP", sans-serif; line-height: 1.35; margin: 0; }

/* ヘッダー */
.topbar {
  position: absolute; top: 0; left: 0; right: 0; z-index: 5;
  display: flex; justify-content: space-between; align-items: center;
  padding: 16px clamp(16px, 4vw, 40px);
  color: #fff; font-weight: 700; letter-spacing: .06em;
}
.topbar a { color: #fff; text-decoration: none; font-size: 14px; border: 1px solid rgba(255,255,255,.6); padding: 4px 12px; border-radius: 999px; }

/* ファーストビュー（全面写真） */
.hero {
  position: relative; min-height: 92vh; min-height: 92svh;
  display: flex; align-items: flex-end;
  background: var(--night) url("/yutagawa/images/barrel-sauna.webp") center 40% / cover no-repeat;
  color: #fff;
}
.hero::before {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(0,0,0,.4) 0%, rgba(0,0,0,.2) 25%, rgba(0,0,0,.45) 50%, rgba(0,0,0,.82) 100%);
}
.hero h1, .hero .lead, .hero .place { text-shadow: 0 2px 12px rgba(0,0,0,.45); }
.hero-inner { position: relative; width: 100%; max-width: 1100px; margin: 0 auto; padding: 88px clamp(16px, 4vw, 40px) clamp(40px, 7vh, 72px); }
.hero .place { font-size: 15px; font-weight: 700; letter-spacing: .08em; opacity: .95; margin: 0 0 10px; }
.hero h1 { font-size: clamp(32px, 6.4vw, 64px); font-weight: 900; letter-spacing: .02em; }
.hero .lead { font-size: clamp(16px, 2.2vw, 19px); margin: 16px 0 22px; max-width: 40em; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 26px; padding: 0; list-style: none; }
.chips li { background: rgba(255,255,255,.16); border: 1px solid rgba(255,255,255,.45); backdrop-filter: blur(4px); padding: 4px 14px; border-radius: 999px; font-size: 14px; font-weight: 700; }
.cta { display: flex; flex-wrap: wrap; gap: 12px; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 52px; padding: 0 26px; border-radius: 999px;
  font-weight: 700; font-size: 16px; text-decoration: none;
}
.btn-direct { background: var(--wood); color: #fff; box-shadow: 0 4px 14px rgba(0,0,0,.25); }
.btn-airbnb { background: #ff385c; color: #fff; }
.btn-booking { background: #003b95; color: #fff; }
.btn:hover { filter: brightness(1.08); }

/* セクション共通 */
section { padding: clamp(56px, 9vw, 96px) clamp(16px, 4vw, 40px); }
.wrap { max-width: 1100px; margin: 0 auto; }
.narrow { max-width: 760px; margin: 0 auto; }
.eyebrow { color: var(--wood); font-weight: 700; font-size: 14px; letter-spacing: .14em; margin: 0 0 8px; }
h2 { font-size: clamp(26px, 4.2vw, 40px); font-weight: 900; margin-bottom: 20px; }
h3 { font-size: 21px; font-weight: 700; margin-bottom: 8px; }
.alt { background: var(--paper); }
.dark { background: var(--night); color: #f2ede4; }
.dark .eyebrow { color: #e0a36f; }
.dark a { color: #f2c497; }

/* ひとことで言うと */
.summary p { font-size: 18px; }
.facts { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; margin-top: 28px; padding: 0; list-style: none; }
.facts li { background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; }
.facts b { display: block; font-size: 24px; font-family: "Zen Kaku Gothic New", sans-serif; }
.facts span { color: var(--sub); font-size: 14px; }

/* できること（写真＋文） */
.feature { display: grid; grid-template-columns: 1.15fr 1fr; gap: clamp(20px, 4vw, 48px); align-items: center; margin-bottom: clamp(48px, 7vw, 80px); }
.feature:last-child { margin-bottom: 0; }
.feature.rev { grid-template-columns: 1fr 1.15fr; }
.feature.rev .photo { order: 2; }
.feature .photo img { border-radius: var(--radius); aspect-ratio: 4 / 3; object-fit: cover; width: 100%; }
.feature .num { font-family: "Zen Kaku Gothic New", sans-serif; font-weight: 900; color: var(--wood); font-size: 15px; letter-spacing: .1em; }
.feature h3 { font-size: clamp(22px, 3vw, 28px); margin: 4px 0 12px; }
.feature p { margin: 0 0 10px; }

/* 写真ギャラリー */
.gallery { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin: 0; padding: 0; list-style: none; }
.gallery figure { margin: 0; }
.gallery img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; border-radius: 10px; }
.gallery figcaption { font-size: 13px; color: var(--sub); margin-top: 4px; }

/* 表 */
.table { width: 100%; border-collapse: collapse; background: var(--paper); border-radius: var(--radius); overflow: hidden; }
.table th, .table td { text-align: left; padding: 14px 16px; border-bottom: 1px solid var(--line); vertical-align: top; }
.table th { width: 30%; background: #f1ebe1; font-weight: 700; white-space: nowrap; }
.table tr:last-child th, .table tr:last-child td { border-bottom: 0; }
.note { color: var(--sub); font-size: 14px; margin-top: 12px; }

/* 料金 */
.price { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 12px; margin: 0; padding: 0; list-style: none; }
.price li { background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; }
.price .label { font-weight: 700; color: var(--sub); font-size: 14px; }
.price .yen { font-family: "Zen Kaku Gothic New", sans-serif; font-size: 30px; font-weight: 900; }
.price .yen small { font-size: 15px; font-weight: 700; }

/* アクセス */
.access { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(20px, 4vw, 40px); }
.map iframe { width: 100%; height: 100%; min-height: 320px; border: 0; border-radius: var(--radius); }
.dist { list-style: none; margin: 0; padding: 0; }
.dist li { display: flex; justify-content: space-between; gap: 12px; padding: 10px 0; border-bottom: 1px dashed rgba(255,255,255,.25); }
.dist li span:last-child { white-space: nowrap; font-weight: 700; }

/* こんな方に */
.who { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 12px; margin: 0; padding: 0; list-style: none; }
.who li { background: var(--paper); border-left: 4px solid var(--wood); border-radius: 8px; padding: 16px 18px; }
.who b { display: block; margin-bottom: 4px; }

/* FAQ */
.faq details { background: var(--paper); border: 1px solid var(--line); border-radius: 12px; margin-bottom: 10px; }
.faq summary { cursor: pointer; padding: 16px 48px 16px 18px; font-weight: 700; list-style: none; position: relative; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 18px; top: 12px; font-size: 22px; color: var(--wood); }
.faq details[open] summary::after { content: "−"; }
.faq details p { margin: 0; padding: 0 18px 18px; }

/* 最後の予約ボタン */
.final { text-align: center; background: linear-gradient(rgba(20,28,32,.72), rgba(20,28,32,.72)), url("/yutagawa/images/kitchen.webp") center / cover; color: #fff; }
.final .cta { justify-content: center; margin-top: 24px; }

footer { padding: 32px clamp(16px, 4vw, 40px); font-size: 13px; color: var(--sub); text-align: center; }
footer p { margin: 4px 0; }

/* スマホ */
@media (max-width: 760px) {
  .feature, .feature.rev { grid-template-columns: 1fr; }
  .feature.rev .photo { order: 0; }
  .gallery { grid-template-columns: repeat(2, 1fr); }
  .access { grid-template-columns: 1fr; }
  .table th { width: 34%; white-space: normal; }
  .btn { flex: 1 1 100%; }
  .hero { background-position: center 30%; }
}