*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --navy:        #1a2640;
  --navy-mid:    #2c3e5a;
  --navy-light:  #3d5275;
  --accent:      #2a7fc8;
  --cream:       #f4f6f9;
  --warm-white:  #fafbfd;
  --text-dark:   #1a1a2e;
  --text-mid:    #4a5068;
  --text-light:  #8a90a8;
  --border:      #d0d8e8;
}

html { scroll-behavior: smooth; }
body { font-family: 'Hiragino Kaku Gothic ProN', 'Yu Gothic', sans-serif; color: var(--text-dark); background: var(--warm-white); line-height: 1.8; }

.container { max-width: 1080px; margin: 0 auto; padding: 0 24px; }
.section-label { font-size: .72rem; letter-spacing: .2em; color: var(--accent); margin-bottom: 12px; }
h2 { font-size: clamp(1.5rem, 3vw, 2rem); font-weight: bold; line-height: 1.5; margin-bottom: 20px; color: var(--navy); }

/* Header */
#header { position: fixed; top: 0; left: 0; right: 0; z-index: 100; transition: background .3s; }
#header.scrolled { background: rgba(26,38,64,.96); backdrop-filter: blur(8px); }
.header-inner { display: flex; align-items: center; justify-content: space-between; padding: 16px 32px; }
.logo { text-decoration: none; color: #fff; }
.logo-ja { display: block; font-size: 1.15rem; font-weight: bold; letter-spacing: .06em; }
.logo-en { display: block; font-size: .58rem; letter-spacing: .2em; color: #8ab4d8; margin-top: 2px; }
.nav { display: flex; align-items: center; gap: 28px; }
.nav a { color: rgba(255,255,255,.85); text-decoration: none; font-size: .85rem; transition: color .2s; }
.nav a:hover { color: #8ab4d8; }
.nav-book { background: var(--accent); color: #fff !important; padding: 8px 18px; border-radius: 4px; font-weight: bold; }
.nav-book:hover { background: #1a6db0 !important; }
.hamburger { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; }
.hamburger span { display: block; width: 24px; height: 2px; background: #fff; }
.nav-mobile { display: none; flex-direction: column; background: var(--navy); padding: 16px 32px; }
.nav-mobile a { color: rgba(255,255,255,.85); text-decoration: none; padding: 12px 0; border-bottom: 1px solid rgba(255,255,255,.1); font-size: .9rem; }
.nav-mobile.open { display: flex; }

/* Hero */
.hero { position: relative; height: 72vh; min-height: 480px; display: flex; align-items: center; background: var(--navy); }
.hero-img { position: absolute; inset: 0; background-size: cover; background-position: center; opacity: .55; }
.hero-content { position: relative; color: #fff; padding: 0 40px; }
.hero-badge { display: inline-flex; align-items: center; gap: 6px; background: rgba(255,255,255,.12); border: 1px solid rgba(255,255,255,.3); color: rgba(255,255,255,.9); font-size: .75rem; padding: 5px 14px; border-radius: 20px; margin-bottom: 20px; letter-spacing: .06em; backdrop-filter: blur(4px); }
.hero h1 { font-size: clamp(2rem, 5vw, 3rem); font-weight: bold; line-height: 1.3; margin-bottom: 12px; }
.hero-sub { font-size: .9rem; color: rgba(255,255,255,.8); margin-bottom: 20px; }
.hero-price { font-size: .82rem; color: rgba(255,255,255,.7); margin-bottom: 28px; }
.hero-price strong { font-size: 1.4rem; color: #fff; margin: 0 4px; }
.btn-hero { display: inline-block; padding: 13px 34px; background: var(--accent); color: #fff; text-decoration: none; font-weight: bold; border-radius: 4px; font-size: .9rem; transition: .2s; }
.btn-hero:hover { background: #1a6db0; }

/* Features */
.features { background: var(--navy); padding: 36px 0; }
.feature-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; }
.feature-item { padding: 24px 28px; border-right: 1px solid rgba(255,255,255,.1); text-align: center; }
.feature-item:last-child { border-right: none; }
.feature-icon { font-size: 1.8rem; margin-bottom: 10px; }
.feature-item h3 { font-size: .9rem; font-weight: bold; color: #fff; margin-bottom: 6px; }
.feature-item p { font-size: .78rem; color: rgba(255,255,255,.6); line-height: 1.6; }

/* Rooms */
.rooms { padding: 80px 0; background: var(--warm-white); }
.room-list { display: flex; flex-direction: column; gap: 20px; margin-top: 36px; }
.room-row { display: flex; gap: 0; border: 1px solid var(--border); border-radius: 8px; overflow: hidden; background: #fff; }
.room-img { width: 260px; flex-shrink: 0; background-size: cover; background-position: center; }
.room-body { flex: 1; padding: 24px 28px; }
.room-tag { display: inline-block; background: var(--cream); color: var(--accent); font-size: .7rem; font-weight: bold; letter-spacing: .08em; padding: 3px 10px; border-radius: 3px; margin-bottom: 10px; border: 1px solid var(--border); }
.room-body h3 { font-size: 1.05rem; font-weight: bold; color: var(--navy); margin-bottom: 8px; }
.room-body > p { font-size: .82rem; color: var(--text-mid); line-height: 1.7; margin-bottom: 12px; }
.room-amenities { display: flex; flex-wrap: wrap; gap: 6px; list-style: none; margin-bottom: 14px; }
.room-amenities li { font-size: .72rem; padding: 3px 10px; background: var(--cream); border-radius: 3px; color: var(--text-mid); }
.room-price { font-size: 1.15rem; font-weight: bold; color: var(--navy); }
.room-price span { font-size: .75rem; font-weight: normal; color: var(--text-light); margin-left: 4px; }

/* Info */
.info { padding: 80px 0; background: var(--cream); }
.info-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; margin-top: 36px; }
.info-table { width: 100%; border-collapse: collapse; }
.info-table th { text-align: left; padding: 12px 16px; font-size: .82rem; color: var(--text-mid); font-weight: normal; background: rgba(255,255,255,.6); border-bottom: 1px solid var(--border); width: 40%; }
.info-table td { padding: 12px 16px; font-size: .82rem; color: var(--text-dark); border-bottom: 1px solid var(--border); }
.plan-list h3 { font-size: .95rem; font-weight: bold; color: var(--navy); margin-bottom: 16px; }
.plan-item { display: flex; justify-content: space-between; align-items: center; padding: 12px 0; border-bottom: 1px solid var(--border); }
.plan-item:last-child { border-bottom: none; }
.plan-name { font-size: .85rem; color: var(--text-dark); }
.plan-price { font-size: .88rem; font-weight: bold; color: var(--accent); }

/* Access */
.access { padding: 80px 0; background: var(--warm-white); }
.access-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; margin-top: 40px; }
.access-name { font-size: 1rem; font-weight: bold; margin-bottom: 10px; color: var(--navy); }
.access-grid p { font-size: .85rem; color: var(--text-mid); margin-bottom: 6px; line-height: 1.8; }
.access-route { margin-top: 24px; display: flex; flex-direction: column; gap: 16px; }
.access-route strong { display: block; font-size: .82rem; color: var(--navy); margin-bottom: 4px; }
.access-route p { font-size: .8rem; }
.map-placeholder { background: #dde3ee; height: 260px; display: flex; align-items: center; justify-content: center; color: #8a90a8; font-size: .85rem; border-radius: 4px; }

/* Book CTA */
.book-cta { padding: 100px 0; background: var(--navy); color: #fff; text-align: center; }
.book-cta h2 { color: #fff; }
.book-cta p { color: rgba(255,255,255,.7); font-size: .9rem; margin-bottom: 32px; }
.btn-book { display: inline-block; padding: 15px 52px; background: var(--accent); color: #fff; text-decoration: none; font-weight: bold; font-size: .95rem; border-radius: 4px; transition: .2s; margin-bottom: 24px; }
.btn-book:hover { background: #1a6db0; }
.book-tel { color: rgba(255,255,255,.55); font-size: .85rem; line-height: 2; }
.book-tel a { color: #8ab4d8; text-decoration: none; font-size: 1.05rem; }
.book-tel span { font-size: .75rem; }

/* Footer */
footer { background: #0f1625; padding: 40px 0 20px; }
.footer-inner { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 28px; }
.footer-logo { color: #fff; font-size: 1.05rem; font-weight: bold; margin-bottom: 6px; }
.footer-address { color: rgba(255,255,255,.35); font-size: .73rem; line-height: 1.8; }
.footer-nav { display: flex; flex-direction: column; gap: 8px; text-align: right; }
.footer-nav a { color: rgba(255,255,255,.4); text-decoration: none; font-size: .78rem; }
.footer-nav a:hover { color: #8ab4d8; }
.footer-copy { color: rgba(255,255,255,.2); font-size: .7rem; border-top: 1px solid rgba(255,255,255,.08); padding-top: 16px; }

/* Back to top */
#back-to-top { position: fixed; bottom: 28px; right: 28px; width: 44px; height: 44px; background: var(--accent); color: #fff; border: none; border-radius: 50%; font-size: 1.1rem; font-weight: bold; cursor: pointer; opacity: 0; pointer-events: none; transition: opacity .3s, transform .3s; z-index: 200; }
#back-to-top.visible { opacity: 1; pointer-events: auto; }
#back-to-top:hover { transform: translateY(-3px); }

@media (max-width: 768px) {
  .nav { display: none; }
  .hamburger { display: flex; }
  .feature-grid { grid-template-columns: 1fr 1fr; }
  .feature-item { border-right: none; border-bottom: 1px solid rgba(255,255,255,.1); }
  .feature-item:nth-child(odd) { border-right: 1px solid rgba(255,255,255,.1); }
  .room-row { flex-direction: column; }
  .room-img { width: 100%; height: 180px; }
  .info-grid, .access-grid { grid-template-columns: 1fr; }
  .footer-inner { flex-direction: column; gap: 20px; }
  .footer-nav { text-align: left; }
}
@media (max-width: 480px) {
  .feature-grid { grid-template-columns: 1fr 1fr; }
  .hero-price strong { font-size: 1.2rem; }
}