:root {
  --brand: #6b1412;
  --brand-dark: #4d0e0d;
  --ink: #2a2522;
  --muted: #6f6660;
  --paper: #faf7f2;
  --card: #ffffff;
  --line: #e6dfd5;
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Noto Sans JP", "Yu Gothic", Meiryo, sans-serif;
  line-height: 1.85;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: var(--brand); }

/* ヘッダー */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--brand);
}
.site-header .inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 10px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.site-header .logo img { height: 34px; width: auto; }
.site-header nav { display: flex; gap: 20px; flex-wrap: wrap; }
.site-header nav a {
  color: #fff;
  text-decoration: none;
  font-size: 14px;
  letter-spacing: .05em;
  opacity: .9;
}
.site-header nav a:hover { opacity: 1; text-decoration: underline; }

/* ヒーロー */
.hero {
  position: relative;
  min-height: 78vh;
  display: grid;
  place-items: center;
  text-align: center;
  color: #fff;
  background: #222 url("images/hero.jpg") center / cover no-repeat;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(rgba(0,0,0,.25), rgba(0,0,0,.5));
}
.hero .copy { position: relative; padding: 0 16px; }
.hero h1 {
  margin: 0 0 12px;
  font-size: clamp(28px, 5vw, 48px);
  letter-spacing: .08em;
  font-weight: 600;
}
.hero p { margin: 0; font-size: clamp(15px, 2vw, 18px); letter-spacing: .1em; }

/* セクション共通 */
section { padding: 80px 16px; }
section:nth-of-type(even) { background: var(--card); }
.container { max-width: 1120px; margin: 0 auto; }
.section-title {
  text-align: center;
  margin: 0 0 8px;
  font-size: clamp(22px, 3vw, 30px);
  letter-spacing: .12em;
  font-weight: 600;
}
.section-sub {
  text-align: center;
  margin: 0 0 40px;
  color: var(--muted);
  font-size: 14px;
  letter-spacing: .2em;
}
.lead { max-width: 720px; margin: 0 auto 40px; text-align: center; }

/* 2カラム紹介 */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}
.split img { border-radius: 6px; aspect-ratio: 3 / 2; object-fit: cover; width: 100%; }

/* カードグリッド */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 24px;
}
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 6px;
  overflow: hidden;
}
section:nth-of-type(even) .card { background: var(--paper); }
.card img { aspect-ratio: 3 / 2; object-fit: cover; width: 100%; }
.card .body { padding: 14px 16px 18px; }
.card h3 { margin: 0 0 4px; font-size: 17px; }
.card p { margin: 0; font-size: 14px; color: var(--muted); }

/* 設備リスト */
.features {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin: 40px 0 0;
  padding: 0;
  list-style: none;
}
.features li {
  border: 1px solid var(--line);
  background: var(--card);
  border-radius: 999px;
  padding: 6px 16px;
  font-size: 14px;
}

/* アクセス・ご予約 */
.info-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}
.info-grid dl { margin: 0; }
.info-grid dt { font-weight: 600; margin-top: 16px; }
.info-grid dd { margin: 0; }
.map {
  width: 100%;
  aspect-ratio: 4 / 3;
  border: 0;
  border-radius: 6px;
}
.btn {
  display: inline-block;
  margin-top: 20px;
  padding: 12px 28px;
  background: var(--brand);
  color: #fff;
  text-decoration: none;
  border-radius: 4px;
  letter-spacing: .08em;
}
.btn:hover { background: var(--brand-dark); }
.sns { display: flex; gap: 16px; margin-top: 16px; }

/* フッター */
.site-footer {
  background: var(--brand);
  color: #fff;
  text-align: center;
  padding: 32px 16px;
  font-size: 13px;
}
.site-footer a { color: #fff; }

/* 本文ページ（プライバシーポリシーなど） */
.page { max-width: 820px; margin: 0 auto; padding: 60px 16px 80px; }
.page h1 { font-size: 26px; letter-spacing: .1em; margin: 0 0 32px; }
.page h2 { font-size: 18px; margin: 36px 0 8px; padding-left: 10px; border-left: 4px solid var(--brand); }

@media (max-width: 760px) {
  section { padding: 56px 16px; }
  .split, .info-grid { grid-template-columns: 1fr; gap: 24px; }
  .site-header .logo img { height: 26px; }
  .site-header nav { gap: 12px; }
  .site-header nav a { font-size: 12px; }
  .hero { min-height: 60vh; }
}