/* ===== Reset & Base ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --color-bg: #ffffff;
  --color-text: #4a4540;
  --color-heading: #2c2820;
  --color-accent: #c4956a;
  --color-accent-dark: #a87850;
  --color-green: #35533a;
  --color-light: #f8f4f0;
  --color-border: #e8e0d8;
  --font-serif: 'Noto Serif JP', 'Yu Mincho', '游明朝', Georgia, serif;
  --container-max: 1100px;
  --container-narrow: 680px;
  --transition: 0.3s ease;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-serif);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.9;
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: inherit;
  text-decoration: none;
  transition: opacity var(--transition);
}

a:hover {
  opacity: 0.7;
}

ul {
  list-style: none;
}

/* ===== Container ===== */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

.container.narrow {
  max-width: var(--container-narrow);
}

/* ===== Buttons ===== */
.btn {
  display: inline-block;
  padding: 12px 32px;
  font-family: var(--font-serif);
  font-size: 13px;
  letter-spacing: 0.1em;
  border-radius: 2px;
  cursor: pointer;
  transition: all var(--transition);
}

.btn-primary {
  background: var(--color-accent);
  color: #fff;
  border: 1px solid var(--color-accent);
}

.btn-primary:hover {
  background: var(--color-accent-dark);
  border-color: var(--color-accent-dark);
  opacity: 1;
}

.btn-ghost {
  background: transparent;
  color: #fff;
  border: 1px solid rgba(255,255,255,0.8);
}

.btn-ghost:hover {
  background: rgba(255,255,255,0.15);
  opacity: 1;
}

/* ===== Labels ===== */
.label-en {
  font-size: 11px;
  letter-spacing: 0.25em;
  color: var(--color-accent);
  margin-bottom: 8px;
}

/* ===== Section Title ===== */
.section-title {
  font-size: clamp(22px, 3.5vw, 30px);
  font-weight: 400;
  color: var(--color-heading);
  line-height: 1.5;
  margin-bottom: 24px;
}

/* ===== Section Header (centered) ===== */
.section-header {
  text-align: center;
  margin-bottom: 52px;
}

/* ===== Header ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  transition: background var(--transition), box-shadow var(--transition);
}

.site-header.scrolled {
  background: rgba(255,255,255,0.97);
  box-shadow: 0 1px 12px rgba(0,0,0,0.07);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px 32px;
}

.logo {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.logo-en {
  font-size: 17px;
  font-weight: 500;
  letter-spacing: 0.2em;
  color: var(--color-heading);
}

.logo-jp {
  font-size: 11px;
  letter-spacing: 0.15em;
  color: var(--color-text);
}

/* ヘロー上では白文字 */
.site-header:not(.scrolled) .logo-en,
.site-header:not(.scrolled) .logo-jp {
  color: #fff;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 36px;
}

.site-nav ul {
  display: flex;
  gap: 32px;
}

.site-nav ul a {
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--color-text);
}

.site-header:not(.scrolled) .site-nav ul a {
  color: rgba(255,255,255,0.9);
}

.nav-cta {
  font-size: 12px;
  padding: 9px 20px;
}

/* ハンバーガー */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px;
  height: 32px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  z-index: 200;
}

.nav-toggle span {
  display: block;
  width: 100%;
  height: 1px;
  background: #fff;
  transition: all var(--transition);
  transform-origin: center;
}

.site-header.scrolled .nav-toggle span {
  background: var(--color-heading);
}

.nav-toggle.open span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* ===== Hero ===== */
.hero {
  position: relative;
  height: 100svh;
  min-height: 560px;
  overflow: hidden;
}

.hero-image {
  position: absolute;
  inset: 0;
}

.hero-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.hero-image::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(20,15,10,0.25) 0%,
    rgba(20,15,10,0.1) 40%,
    rgba(20,15,10,0.5) 100%
  );
}

.hero-text {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  text-align: center;
  color: #fff;
  padding: 0 24px;
}

.hero-sub {
  font-size: 12px;
  letter-spacing: 0.3em;
  margin-bottom: 20px;
  opacity: 0.85;
}

.hero-title {
  font-size: clamp(28px, 5.5vw, 52px);
  font-weight: 300;
  line-height: 1.6;
  margin-bottom: 36px;
}

.scroll-indicator {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
}

.scroll-indicator span {
  display: block;
  width: 1px;
  height: 48px;
  background: rgba(255,255,255,0.6);
  margin: 0 auto;
  animation: scrollLine 1.6s ease-in-out infinite;
}

@keyframes scrollLine {
  0% { transform: scaleY(0); transform-origin: top; }
  50% { transform: scaleY(1); transform-origin: top; }
  51% { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ===== Concept ===== */
.concept {
  padding: 96px 24px;
  text-align: center;
  background: var(--color-bg);
}

.concept-text {
  font-size: 15px;
  line-height: 2.1;
  color: var(--color-text);
}

/* ===== Rooms ===== */
.rooms {
  padding: 80px 0 100px;
  background: var(--color-light);
}

.room-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

.room-card {
  background: var(--color-bg);
}

.room-image img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
}

.room-info {
  padding: 28px 28px 32px;
}

.room-name {
  font-size: 18px;
  font-weight: 400;
  color: var(--color-heading);
  margin-bottom: 12px;
}

.room-desc {
  font-size: 13px;
  line-height: 1.9;
  margin-bottom: 16px;
}

.room-price {
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--color-accent-dark);
}

/* ===== Dining ===== */
.dining {
  padding: 0;
  background: var(--color-bg);
}

.dining-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 520px;
}

.dining-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.dining-text {
  padding: 72px 64px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.dining-text p {
  font-size: 14px;
  line-height: 2;
  margin-bottom: 24px;
}

.dining-info {
  font-size: 13px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.dining-info li {
  display: flex;
  gap: 16px;
}

.dining-info span {
  min-width: 44px;
  color: var(--color-accent-dark);
}

/* ===== Spa ===== */
.spa {
  padding: 0;
  background: var(--color-light);
}

.spa-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 520px;
}

.spa-text {
  padding: 72px 64px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.spa-text p {
  font-size: 14px;
  line-height: 2;
  margin-bottom: 24px;
}

.spa-info {
  font-size: 13px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.spa-info li {
  display: flex;
  gap: 16px;
}

.spa-info span {
  min-width: 60px;
  color: var(--color-accent-dark);
}

.spa-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ===== Access ===== */
.access {
  padding: 96px 0 100px;
  background: var(--color-bg);
}

.access-inner {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 52px;
  align-items: start;
}

.access-info dl {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 12px 24px;
  font-size: 14px;
  margin-bottom: 32px;
}

.access-info dt {
  color: var(--color-accent-dark);
  font-size: 12px;
  letter-spacing: 0.05em;
  padding-top: 2px;
  white-space: nowrap;
}

.access-info a {
  color: var(--color-text);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.map-btn {
  font-size: 13px;
}

.access-map {
  border: 1px solid var(--color-border);
  aspect-ratio: 16/9;
  overflow: hidden;
}

.access-map iframe {
  width: 100%;
  height: 100%;
  border: none;
}

.map-placeholder {
  width: 100%;
  height: 100%;
  background: var(--color-light);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  text-align: center;
  font-size: 13px;
  color: #888;
  line-height: 1.7;
}

/* ===== Footer ===== */
.site-footer {
  background: var(--color-heading);
  color: rgba(255,255,255,0.75);
  padding: 56px 0 32px;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 40px;
  gap: 40px;
}

.footer-logo .logo-en {
  font-size: 16px;
  letter-spacing: 0.2em;
  color: #fff;
  display: block;
  margin-bottom: 4px;
}

.footer-logo .logo-jp {
  font-size: 11px;
  letter-spacing: 0.15em;
  color: rgba(255,255,255,0.6);
  display: block;
  margin-bottom: 20px;
}

.footer-address {
  font-size: 12px;
  line-height: 1.8;
  margin-bottom: 6px;
}

.footer-logo a {
  font-size: 13px;
  color: rgba(255,255,255,0.75);
}

.footer-nav ul {
  display: flex;
  flex-direction: column;
  gap: 12px;
  text-align: right;
}

.footer-nav a {
  font-size: 13px;
  letter-spacing: 0.05em;
  color: rgba(255,255,255,0.75);
}

.copyright {
  font-size: 11px;
  letter-spacing: 0.08em;
  color: rgba(255,255,255,0.4);
  text-align: center;
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 24px;
}

/* ===== Responsive ===== */
@media (max-width: 900px) {
  .dining-inner,
  .spa-inner {
    grid-template-columns: 1fr;
  }

  .dining-image,
  .spa-image {
    aspect-ratio: 16/9;
  }

  .dining-image img,
  .spa-image img {
    height: 100%;
  }

  .dining-text,
  .spa-text {
    padding: 48px 32px;
  }

  /* スパはPC: テキスト左・画像右。モバイルは画像を先に */
  .spa-inner {
    display: flex;
    flex-direction: column;
  }

  .spa-image { order: -1; }

  .access-inner {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  /* ヘッダー */
  .nav-toggle {
    display: flex;
  }

  .site-nav {
    position: fixed;
    top: 0;
    right: -100%;
    bottom: 0;
    width: min(280px, 80vw);
    background: var(--color-bg);
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    padding: 80px 40px 40px;
    gap: 32px;
    box-shadow: -4px 0 24px rgba(0,0,0,0.12);
    transition: right var(--transition);
  }

  .site-nav.open {
    right: 0;
  }

  .site-nav ul {
    flex-direction: column;
    gap: 24px;
  }

  .site-nav ul a {
    font-size: 16px;
    color: var(--color-text) !important;
  }

  .nav-cta {
    width: 100%;
    text-align: center;
  }

  /* ルーム */
  .room-grid {
    grid-template-columns: 1fr;
  }

  /* フッター */
  .footer-inner {
    flex-direction: column;
  }

  .footer-nav ul {
    text-align: left;
    flex-direction: row;
    flex-wrap: wrap;
    gap: 12px 24px;
  }

  /* 余白調整 */
  .concept { padding: 64px 24px; }
  .rooms { padding: 60px 0 72px; }
  .access { padding: 64px 0 72px; }
}

@media (max-width: 480px) {
  .header-inner {
    padding: 16px 20px;
  }

  .container {
    padding: 0 16px;
  }

  .hero-title {
    font-size: 26px;
  }

  .dining-text,
  .spa-text {
    padding: 40px 20px;
  }
}