/* ===== リセット・基本 ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --gold: #c9a96e;
  --gold-light: #e8d5b0;
  --black: #1a1a1a;
  --gray: #6b6b6b;
  --gray-light: #f7f5f2;
  --white: #ffffff;
  --font-en: 'Cormorant Garamond', serif;
  --font-ja: 'Noto Sans JP', sans-serif;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-ja);
  color: var(--black);
  background: var(--white);
  line-height: 1.8;
  font-size: 15px;
}

a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }

/* ===== ボタン ===== */
.btn {
  display: inline-block;
  padding: 14px 32px;
  border-radius: 2px;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.08em;
  cursor: pointer;
  transition: all 0.3s ease;
  border: none;
}

.btn--primary {
  background: var(--gold);
  color: var(--white);
}
.btn--primary:hover { background: #b8915a; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(201,169,110,0.4); }

.btn--ghost {
  background: transparent;
  color: var(--white);
  border: 1px solid rgba(255,255,255,0.6);
}
.btn--ghost:hover { background: rgba(255,255,255,0.1); }

.btn--outline {
  background: transparent;
  color: var(--gold);
  border: 1px solid var(--gold);
}
.btn--outline:hover { background: var(--gold); color: var(--white); }

.btn--large { padding: 18px 48px; font-size: 16px; }

.btn--primary span { font-size: 11px; opacity: 0.8; margin-left: 6px; }

/* ===== セクション共通 ===== */
.section__inner { max-width: 1100px; margin: 0 auto; padding: 100px 40px; }

.section__label {
  font-family: var(--font-en);
  font-size: 11px;
  letter-spacing: 0.3em;
  color: var(--gold);
  display: block;
  margin-bottom: 16px;
}

.section__title {
  font-family: var(--font-en);
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 300;
  line-height: 1.4;
  margin-bottom: 60px;
}

/* ===== ヘッダー ===== */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(201,169,110,0.2);
}

.header__inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 20px 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-family: var(--font-en);
  font-size: 24px;
  font-weight: 300;
  font-style: italic;
  letter-spacing: 0.1em;
  color: var(--gold);
}

.nav { display: flex; align-items: center; gap: 32px; }
.nav a { font-size: 13px; letter-spacing: 0.06em; color: var(--gray); transition: color 0.2s; }
.nav a:hover { color: var(--gold); }
.nav__cta {
  background: var(--gold) !important;
  color: var(--white) !important;
  padding: 10px 20px;
  border-radius: 2px;
  font-size: 13px !important;
}
.nav__cta:hover { background: #b8915a !important; }

/* ===== ヒーロー ===== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(135deg, rgba(26,26,26,0.75) 0%, rgba(26,26,26,0.4) 100%),
    url('https://images.unsplash.com/photo-1560066984-138dadb4c035?w=1600&q=80') center/cover no-repeat;
}

.hero__content {
  position: relative;
  z-index: 1;
  max-width: 1100px;
  margin: 0 auto;
  padding: 120px 40px 80px;
  color: var(--white);
}

.hero__sub {
  font-size: 12px;
  letter-spacing: 0.25em;
  opacity: 0.8;
  margin-bottom: 24px;
}

.hero__title {
  font-family: var(--font-en);
  font-size: clamp(42px, 7vw, 80px);
  font-weight: 300;
  line-height: 1.2;
  margin-bottom: 28px;
}
.hero__title em { font-style: italic; color: var(--gold-light); }

.hero__desc {
  font-size: 15px;
  line-height: 2;
  opacity: 0.9;
  margin-bottom: 48px;
}

.hero__btns { display: flex; gap: 16px; flex-wrap: wrap; }

.hero__scroll {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--font-en);
  font-size: 10px;
  letter-spacing: 0.3em;
  color: rgba(255,255,255,0.6);
  z-index: 1;
}
.hero__scroll::after {
  content: '';
  display: block;
  width: 1px;
  height: 40px;
  background: rgba(255,255,255,0.4);
  margin: 8px auto 0;
  animation: scrollLine 2s ease-in-out infinite;
}
@keyframes scrollLine {
  0% { transform: scaleY(0); transform-origin: top; opacity: 1; }
  50% { transform: scaleY(1); transform-origin: top; opacity: 1; }
  51% { transform: scaleY(1); transform-origin: bottom; opacity: 1; }
  100% { transform: scaleY(0); transform-origin: bottom; opacity: 0; }
}

/* ===== 数字 ===== */
.numbers {
  background: var(--black);
  padding: 60px 40px;
}
.numbers__inner {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
  text-align: center;
}
.numbers__num {
  display: block;
  font-family: var(--font-en);
  font-size: 48px;
  font-weight: 300;
  color: var(--gold);
  line-height: 1;
  margin-bottom: 8px;
}
.numbers__num small { font-size: 20px; }
.numbers__label { font-size: 12px; color: rgba(255,255,255,0.6); letter-spacing: 0.1em; }

/* ===== 選ばれる理由 ===== */
.reasons { background: var(--gray-light); }
.reasons__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 40px;
}
.reasons__item {
  background: var(--white);
  padding: 40px;
  border-bottom: 3px solid transparent;
  transition: border-color 0.3s;
}
.reasons__item:hover { border-color: var(--gold); }
.reasons__icon {
  font-family: var(--font-en);
  font-size: 48px;
  font-weight: 300;
  color: var(--gold-light);
  line-height: 1;
  margin-bottom: 16px;
}
.reasons__item h3 { font-size: 17px; margin-bottom: 12px; font-weight: 500; }
.reasons__item p { color: var(--gray); font-size: 14px; line-height: 1.9; }

/* ===== メニュー ===== */
.menu { background: var(--white); }
.menu__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: start;
}
.menu__card {
  border: 1px solid #e8e8e8;
  padding: 36px 28px;
  text-align: center;
  position: relative;
  transition: box-shadow 0.3s;
}
.menu__card:hover { box-shadow: 0 12px 40px rgba(0,0,0,0.08); }
.menu__card--featured {
  border-color: var(--gold);
  background: linear-gradient(135deg, #fffdf9, #fff8ee);
}
.menu__badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--gold);
  color: var(--white);
  font-size: 11px;
  padding: 4px 16px;
  letter-spacing: 0.1em;
  white-space: nowrap;
}
.menu__card h3 { font-size: 18px; font-weight: 500; margin-bottom: 12px; }
.menu__desc { color: var(--gray); font-size: 13px; margin-bottom: 24px; }
.menu__price { margin-bottom: 24px; }
.menu__price--trial { display: block; font-size: 11px; color: var(--gold); letter-spacing: 0.1em; margin-bottom: 4px; }
.menu__price strong { display: block; font-family: var(--font-en); font-size: 40px; font-weight: 300; color: var(--black); line-height: 1; }
.menu__price--original { font-size: 12px; color: var(--gray); text-decoration: line-through; }

/* ===== お客様の声 ===== */
.voice { background: var(--gray-light); }
.voice__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.voice__card {
  background: var(--white);
  padding: 32px;
}
.voice__stars { color: var(--gold); font-size: 14px; margin-bottom: 16px; letter-spacing: 2px; }
.voice__card p { font-size: 14px; color: var(--gray); line-height: 1.9; margin-bottom: 16px; }
.voice__author { font-size: 12px; color: var(--gray); border-top: 1px solid #eee; padding-top: 12px; display: block; }

/* ===== CTA ===== */
.cta {
  background: var(--black);
  text-align: center;
}
.cta__inner { max-width: 700px; margin: 0 auto; padding: 100px 40px; }
.cta__label {
  font-family: var(--font-en);
  font-size: 11px;
  letter-spacing: 0.3em;
  color: var(--gold);
  display: block;
  margin-bottom: 16px;
}
.cta h2 {
  font-family: var(--font-en);
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 300;
  color: var(--white);
  line-height: 1.4;
  margin-bottom: 24px;
}
.cta__desc { color: rgba(255,255,255,0.7); font-size: 15px; margin-bottom: 40px; }
.cta__note { color: rgba(255,255,255,0.4); font-size: 12px; margin-top: 20px; }

/* ===== FAQ ===== */
.faq { background: var(--white); }
.faq__list { max-width: 700px; }
.faq__item {
  border-bottom: 1px solid #e8e8e8;
  padding: 8px 0;
}
.faq__item summary {
  padding: 16px 0;
  cursor: pointer;
  font-size: 15px;
  font-weight: 500;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.faq__item summary::after {
  content: '+';
  font-size: 20px;
  color: var(--gold);
  font-weight: 300;
  transition: transform 0.3s;
}
.faq__item[open] summary::after { transform: rotate(45deg); }
.faq__item p { padding: 0 0 20px; color: var(--gray); font-size: 14px; line-height: 1.9; }

/* ===== アクセス ===== */
.access { background: var(--gray-light); }
.access__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.access__list { list-style: none; }
.access__list li { padding: 14px 0; border-bottom: 1px solid #e0ddd8; font-size: 14px; }
.access__list strong { display: inline-block; width: 80px; color: var(--gold); font-weight: 500; }
.access__map-placeholder {
  background: #ddd;
  height: 300px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: #888;
  font-size: 14px;
}

/* ===== 予約フォーム ===== */
.contact { background: var(--white); }
.contact__desc { color: var(--gray); margin-bottom: 48px; font-size: 14px; }
.contact__form { max-width: 600px; }
.form__row { margin-bottom: 28px; }
.form__row label { display: block; font-size: 13px; font-weight: 500; margin-bottom: 8px; }
.required { background: var(--gold); color: var(--white); font-size: 10px; padding: 2px 6px; border-radius: 2px; margin-left: 6px; }
.form__row input,
.form__row select,
.form__row textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid #ddd;
  border-radius: 2px;
  font-family: var(--font-ja);
  font-size: 14px;
  outline: none;
  transition: border-color 0.2s;
  background: #fafafa;
}
.form__row input:focus,
.form__row select:focus,
.form__row textarea:focus {
  border-color: var(--gold);
  background: var(--white);
}
.form__note { font-size: 12px; color: var(--gray); margin-top: 16px; }

/* ===== フッター ===== */
.footer {
  background: var(--black);
  padding: 48px 40px;
  text-align: center;
}
.footer__inner { max-width: 1100px; margin: 0 auto; }
.footer .logo { margin: 0 auto 24px; display: inline-block; }
.footer__nav { display: flex; justify-content: center; gap: 32px; margin-bottom: 24px; }
.footer__nav a { font-size: 12px; color: rgba(255,255,255,0.4); transition: color 0.2s; }
.footer__nav a:hover { color: var(--gold); }
.footer__copy { font-size: 11px; color: rgba(255,255,255,0.3); letter-spacing: 0.05em; }

/* ===== トップに戻るボタン ===== */
.back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 48px;
  height: 48px;
  background: var(--gold);
  color: var(--white);
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 99;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: opacity 0.3s ease, visibility 0.3s ease, transform 0.3s ease, background 0.2s;
  box-shadow: 0 4px 16px rgba(201,169,110,0.4);
}
.back-to-top::before {
  content: '';
  display: block;
  width: 10px;
  height: 10px;
  border-top: 2px solid var(--white);
  border-right: 2px solid var(--white);
  transform: translateY(1px) rotate(-45deg);
}
.back-to-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.back-to-top:hover {
  background: #b8915a;
  transform: translateY(-2px);
}

/* スマホ時は固定CTAの上に配置 */
@media (max-width: 768px) {
  .back-to-top {
    bottom: 88px;
    right: 16px;
    width: 42px;
    height: 42px;
  }
}

/* ===== スクロールアニメーション ===== */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.fade-in.visible { opacity: 1; transform: translateY(0); }

/* ===== ハンバーガーボタン ===== */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  z-index: 201;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--black);
  border-radius: 2px;
  transition: transform 0.3s ease, opacity 0.3s ease;
  transform-origin: center;
}
/* 開いた状態（× アイコン） */
.hamburger.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.is-open span:nth-child(2) { opacity: 0; }
.hamburger.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ===== スマホ用ドロワーメニュー ===== */
.sp-nav {
  /* display:none を使わず visibility で制御（displayだとtransitionが効かない） */
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.5);
  z-index: 199;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}
.sp-nav.is-open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}
.sp-nav__inner {
  position: absolute;
  top: 0; right: 0;
  width: 75%;
  max-width: 300px;
  height: 100%;
  background: var(--white);
  padding: 80px 32px 40px;
  transform: translateX(100%);
  transition: transform 0.35s ease;
  display: flex;
  flex-direction: column;
  gap: 0;
  overflow-y: auto;
}
.sp-nav.is-open .sp-nav__inner {
  transform: translateX(0);
}
.sp-nav__inner a {
  display: block;
  padding: 16px 0;
  font-size: 16px;
  color: var(--black);
  border-bottom: 1px solid #f0f0f0;
  letter-spacing: 0.04em;
  transition: color 0.2s;
}
.sp-nav__inner a:hover { color: var(--gold); }
.sp-nav__cta {
  margin-top: 32px !important;
  background: var(--gold) !important;
  color: var(--white) !important;
  text-align: center;
  border-radius: 2px;
  border-bottom: none !important;
  padding: 14px 0 !important;
}

/* ===== スマホ固定CTAボタン ===== */
.sp-fixed-cta {
  display: none;
  position: fixed;
  bottom: 0; left: 0; right: 0;
  z-index: 100;
  padding: 12px 16px;
  background: rgba(255,255,255,0.6);
  box-shadow: 0 -2px 16px rgba(0,0,0,0.1);
}
.sp-fixed-cta a {
  display: block;
  background: var(--gold);
  color: var(--white);
  text-align: center;
  padding: 14px;
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 0.06em;
  border-radius: 2px;
  transition: background 0.3s, transform 0.3s, box-shadow 0.3s;
}
.sp-fixed-cta a:hover {
  background: #b8915a;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(201,169,110,0.4);
}

/* ===== レスポンシブ ===== */
@media (max-width: 768px) {
  /* スマホ時：PC用ナビ非表示、ハンバーガー表示 */
  .nav { display: none !important; }
  .hamburger { display: flex; }
  .sp-fixed-cta { display: block; }

  /* コンテンツがCTAボタンに隠れないよう余白追加 */
  body { padding-bottom: 72px; }

  .numbers__inner { grid-template-columns: repeat(2, 1fr); }
  .reasons__grid { grid-template-columns: 1fr; }
  .menu__grid { grid-template-columns: 1fr; }
  .voice__grid { grid-template-columns: 1fr; }
  .access__inner { grid-template-columns: 1fr; gap: 40px; }
  .hero__btns { flex-direction: column; }
  .section__inner { padding: 70px 24px; }
}