:root {
  --forest: #2c4a3a;
  --forest-deep: #1a2e24;
  --moss: #5c7a62;
  --cream: #f6f1e8;
  --sand: #e8dfd0;
  --ink: #2a2622;
  --muted: #6b635a;
  --white: #fffcf7;
  --accent: #b08a4a;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: "Zen Kaku Gothic New", "Hiragino Sans", sans-serif;
  color: var(--ink);
  background: var(--white);
  line-height: 1.8;
}
img { max-width: 100%; display: block; }
a { color: inherit; }

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.9rem 6vw;
  background: rgba(26, 46, 36, 0.88);
  backdrop-filter: blur(8px);
  color: var(--white);
}
.logo {
  font-family: "Shippori Mincho", serif;
  font-size: 1.05rem;
  letter-spacing: 0.12em;
  text-decoration: none;
}
.nav { display: flex; gap: 1.4rem; font-size: 0.85rem; }
.nav a { text-decoration: none; opacity: 0.9; }
.nav a:hover { opacity: 1; color: #e8d5a8; }
.header-cta {
  background: var(--accent);
  color: #fff;
  text-decoration: none;
  padding: 0.45rem 1rem;
  border-radius: 999px;
  font-size: 0.82rem;
  letter-spacing: 0.06em;
}
.menu-btn {
  display: none;
  background: none;
  border: 0;
  color: #fff;
  font-size: 1.4rem;
  cursor: pointer;
}

.hero {
  min-height: 100vh;
  background:
    linear-gradient(180deg, rgba(18, 28, 22, 0.35), rgba(18, 28, 22, 0.55)),
    url("../images/hero-exterior.jpg") center/cover no-repeat;
  display: grid;
  place-items: end start;
  padding: 0 8vw 12vh;
  color: var(--white);
}
.hero-kicker {
  letter-spacing: 0.28em;
  font-size: 0.78rem;
  margin-bottom: 0.8rem;
}
.hero h1 {
  font-family: "Shippori Mincho", serif;
  font-weight: 500;
  font-size: clamp(2.2rem, 5vw, 4.2rem);
  line-height: 1.25;
  letter-spacing: 0.08em;
}
.hero p {
  margin-top: 1.1rem;
  max-width: 34rem;
  font-size: 1.02rem;
}
.hero-actions { display: flex; gap: 0.8rem; margin-top: 1.8rem; flex-wrap: wrap; }
.btn {
  display: inline-block;
  text-decoration: none;
  padding: 0.75rem 1.4rem;
  border-radius: 999px;
  letter-spacing: 0.08em;
  font-size: 0.9rem;
}
.btn-gold { background: var(--accent); color: #fff; }
.btn-ghost { border: 1px solid #fff; color: #fff; }

section { padding: 5.5rem 8vw; }
.section-title {
  font-family: "Shippori Mincho", serif;
  font-size: clamp(1.6rem, 3vw, 2.3rem);
  font-weight: 500;
  letter-spacing: 0.1em;
  margin-bottom: 0.4rem;
}
.lead { color: var(--muted); max-width: 40rem; margin-bottom: 2.2rem; }

.facts {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  margin-top: 2rem;
}
.fact {
  background: var(--cream);
  padding: 1.3rem 1.1rem;
  border-radius: 12px;
}
.fact dt { font-size: 0.78rem; letter-spacing: 0.14em; color: var(--moss); }
.fact dd { font-family: "Shippori Mincho", serif; font-size: 1.25rem; }

.split {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 3rem;
  align-items: center;
}
.split img { width: 100%; height: 420px; object-fit: cover; border-radius: 16px; }
.split.alt { background: var(--cream); }
.split.alt img { order: -1; }

.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.2rem;
}
.card {
  background: #fff;
  border: 1px solid var(--sand);
  border-radius: 16px;
  overflow: hidden;
}
.card img { width: 100%; height: 210px; object-fit: cover; }
.card h3 {
  font-family: "Shippori Mincho", serif;
  font-weight: 500;
  padding: 1rem 1.2rem 0.2rem;
  font-size: 1.15rem;
}
.card p { padding: 0 1.2rem 1.3rem; color: var(--muted); font-size: 0.95rem; }

.gallery {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.55rem;
}
.gallery a { display: block; overflow: hidden; border-radius: 10px; }
.gallery img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.gallery a:hover img { transform: scale(1.05); }
.gallery a:first-child { grid-column: span 2; grid-row: span 2; }
.gallery a:first-child img { height: 100%; min-height: 370px; }

.equip {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}
.equip ul { list-style: none; }
.equip li {
  padding: 0.55rem 0;
  border-bottom: 1px solid var(--sand);
  display: flex;
  gap: 0.7rem;
}
.equip li::before { content: "・"; color: var(--accent); }

.note {
  background: #fff7ea;
  border-left: 4px solid var(--accent);
  padding: 1rem 1.2rem;
  margin-top: 1.4rem;
  font-size: 0.92rem;
}

.reserve {
  background: var(--forest-deep);
  color: var(--white);
  text-align: center;
}
.reserve .lead { color: #d7d0c6; margin-inline: auto; }
.reserve .btn-gold { margin-top: 0.4rem; }

.access-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}
.map {
  width: 100%;
  min-height: 320px;
  border: 0;
  border-radius: 14px;
}

footer {
  background: #111916;
  color: #c9c2b8;
  padding: 2rem 8vw;
  font-size: 0.82rem;
}
footer a { color: #e8d5a8; }

.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.88);
  display: none;
  place-items: center;
  z-index: 80;
  padding: 2rem;
}
.lightbox.open { display: grid; }
.lightbox img { max-width: 92vw; max-height: 88vh; }

@media (max-width: 900px) {
  .nav, .header-cta { display: none; }
  .nav.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--forest-deep);
    padding: 1rem 6vw 1.4rem;
  }
  .menu-btn { display: block; }
  .facts, .cards, .split, .equip, .access-grid { grid-template-columns: 1fr; }
  .split.alt img { order: 0; }
  .gallery { grid-template-columns: 1fr 1fr; }
  .gallery a:first-child { grid-column: span 2; grid-row: auto; }
  .gallery a:first-child img { min-height: 220px; height: 220px; }
  .hero { place-items: center start; }
}