/* ════════════════════════════════════════
   CSS変数 & リセット
════════════════════════════════════════ */
:root {
  /* ブランドカラー */
  --color-bg:        #080808;
  --color-surface:   #101010;
  --color-surface2:  #181818;
  --color-gold:      #c9a84c;
  --color-gold-lt:   #e8c97a;
  --color-gold-dk:   #8a6820;
  --color-white:     #f8f4ee;
  --color-gray:      #888680;
  --color-gray-lt:   #bbb8b2;
  --color-border:    rgba(201,168,76,0.18);
  --color-overlay:   rgba(0,0,0,0.58);
  --color-overlay-h: rgba(0,0,0,0.72);

  /* 季節エフェクト色（変更でシーズン切り替え） */
  /* 春: 桜ピンク */
  --petal-a: rgba(255,183,197,0.88);
  --petal-b: rgba(255,218,232,0.72);
  --petal-c: rgba(255,245,248,0.60);
  /* 秋: 紅葉にするには → rgba(210,55,25,0.88) など */
  /* 冬: 雪にするには  → rgba(220,235,255,0.85) など */

  /* タイポグラフィ */
  --font-ja: 'Noto Serif JP', 'ヒラギノ明朝 ProN', 'Hiragino Mincho ProN', Georgia, serif;
  --font-en: 'Cormorant Garamond', Georgia, 'Times New Roman', serif;

  /* レイアウト */
  --nav-h:    80px;
  --max-w:    1240px;
  --pad-x:    clamp(1.25rem, 5vw, 4rem);
  --sec-pad:  clamp(5rem, 10vh, 9rem);
  --radius:   4px;

  /* トランジション */
  --ease:     cubic-bezier(0.4, 0, 0.2, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --t-base:   0.35s;
  --t-slow:   0.8s;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }

body {
  background: var(--color-bg);
  color: var(--color-white);
  font-family: var(--font-ja);
  font-weight: 300;
  line-height: 1.85;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

img { display: block; max-width: 100%; height: auto; object-fit: cover; object-position: center; }
a   { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { background: none; border: none; cursor: pointer; font-family: inherit; }

/* ════════════════════════════════════════
   ボタン共通
════════════════════════════════════════ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5em;
  padding: 0.85em 2.2em;
  font-family: var(--font-en);
  font-size: 0.88rem;
  letter-spacing: 0.18em;
  border-radius: var(--radius);
  border: 1px solid transparent;
  transition: background var(--t-base) var(--ease),
              color var(--t-base) var(--ease),
              border-color var(--t-base) var(--ease),
              transform 0.2s ease;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }

.btn-gold {
  background: var(--color-gold);
  color: var(--color-bg);
  border-color: var(--color-gold);
  font-weight: 600;
}
.btn-gold:hover { background: var(--color-gold-lt); border-color: var(--color-gold-lt); }

.btn-ghost {
  background: transparent;
  color: var(--color-white);
  border-color: rgba(255,255,255,0.45);
}
.btn-ghost:hover { border-color: var(--color-gold); color: var(--color-gold); }

.btn-line-lg {
  background: #06C755;
  color: #fff;
  border-color: #06C755;
  font-family: var(--font-ja);
  font-size: 0.9rem;
  letter-spacing: 0.08em;
}
.btn-line-lg:hover { background: #04a545; border-color: #04a545; }

/* ════════════════════════════════════════
   デモバナー
════════════════════════════════════════ */
.demo-banner {
  width: 100%;
  background: rgba(201,168,76,0.12);
  border-bottom: 1px solid rgba(201,168,76,0.25);
  text-align: center;
  padding: 0.35rem 1rem;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  color: var(--color-gold);
}

/* ════════════════════════════════════════
   ローディング
════════════════════════════════════════ */
#loader {
  position: fixed;
  inset: 0;
  background: #030303;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10000;
  transition: opacity 0.9s var(--ease), visibility 0.9s var(--ease);
}
#loader.hidden { opacity: 0; visibility: hidden; pointer-events: none; }

.loader-inner { text-align: center; }

.loader-tagline {
  font-size: 0.75rem;
  letter-spacing: 0.5em;
  color: var(--color-gray);
  opacity: 0;
  animation: loaderFade 0.9s ease 0.3s forwards;
}

.loader-name {
  font-family: var(--font-en);
  font-size: clamp(3.5rem, 9vw, 7rem);
  font-weight: 300;
  letter-spacing: 0.5em;
  color: var(--color-gold);
  opacity: 0;
  animation: loaderSlideUp 1s var(--ease-out) 0.6s forwards;
}

.loader-demo-note {
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  color: rgba(201,168,76,0.45);
  margin-top: 0.5rem;
  opacity: 0;
  animation: loaderFade 0.9s ease 1.2s forwards;
}

.loader-bar {
  width: 180px;
  height: 1px;
  background: rgba(201,168,76,0.18);
  margin: 2rem auto 0;
  overflow: hidden;
}

.loader-progress {
  height: 100%;
  width: 0;
  background: var(--color-gold);
  animation: loadBar 2s var(--ease) 0.8s forwards;
}

@keyframes loaderFade     { to { opacity: 1; } }
@keyframes loaderSlideUp  { from { opacity:0; transform:translateY(24px); } to { opacity:1; transform:translateY(0); } }
@keyframes loadBar        { to { width: 100%; } }

/* ════════════════════════════════════════
   セクション別季節エフェクト
   各セクション内に absolute 配置、overflow: hidden でクリップ
════════════════════════════════════════ */
.season-fx {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 2;
  overflow: hidden;
}

.particle {
  position: absolute;
  pointer-events: none;
  perspective: 500px;
  animation-fill-mode: forwards;
  animation-timing-function: linear;
}

.particle-flip {
  transform-style: preserve-3d;
  display: flex;
  align-items: center;
  justify-content: center;
}

.particle svg { display: block; }

/* 落下（春・秋・冬）— 上端からフェードイン、下端でフェードアウト */
@keyframes particleDrop {
  0%   { transform: translateY(0)     translateX(0);                 opacity: 0; }
  6%   {                                                              opacity: 1; }
  94%  {                                                              opacity: 0.9; }
  100% { transform: translateY(120vh) translateX(var(--drift, 0px)); opacity: 0; }
}

/* 雪（よりまっすぐな落下） */
@keyframes snowFall {
  0%   { transform: translateY(0)     translateX(0);                 opacity: 0; }
  6%   {                                                              opacity: 0.9; }
  94%  {                                                              opacity: 0.7; }
  100% { transform: translateY(120vh) translateX(var(--drift, 0px)); opacity: 0; }
}

/* 春・秋: ひらひら 3D 裏返り */
@keyframes flip3D {
  0%   { transform: rotate(0deg)   rotateY(0deg)   rotateX(0deg); }
  25%  { transform: rotate(90deg)  rotateY(180deg) rotateX(20deg); }
  50%  { transform: rotate(180deg) rotateY(360deg) rotateX(-15deg); }
  75%  { transform: rotate(270deg) rotateY(540deg) rotateX(10deg); }
  100% { transform: rotate(360deg) rotateY(720deg) rotateX(0deg); }
}

/* 雪の結晶: ゆっくり回転 */
@keyframes snowSpin {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

/* 蛍: 下から上へ浮上 */
@keyframes fireflyRise {
  0%   { transform: translateY(0)     translateX(0);                 opacity: 0; }
  12%  {                                                              opacity: 0.85; }
  88%  {                                                              opacity: 0.75; }
  100% { transform: translateY(-60vh) translateX(var(--drift, 0px)); opacity: 0; }
}

/* 蛍: 明滅（常にソフトブラー維持→ハード円にならない） */
@keyframes fireflyGlow {
  0%, 100% { filter: blur(5px) brightness(0.15); }
  45%       { filter: blur(3px) brightness(1.2);  }
  65%       { filter: blur(1.5px) brightness(2.6); }
}

/* ════════════════════════════════════════
   ポップアップ
════════════════════════════════════════ */
#popup-backdrop {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.7);
  z-index: 8000;
  opacity: 0; visibility: hidden;
  transition: opacity 0.4s var(--ease), visibility 0.4s;
  backdrop-filter: blur(4px);
}
#popup-backdrop.active { opacity: 1; visibility: visible; }

#promo-popup {
  position: fixed;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%) scale(0.93);
  z-index: 8001;
  width: min(480px, 92vw);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  padding: 3rem 2.5rem 2.5rem;
  text-align: center;
  opacity: 0; visibility: hidden;
  transition: opacity 0.4s var(--ease-out), transform 0.4s var(--ease-out), visibility 0.4s;
}
#promo-popup.active {
  opacity: 1; visibility: visible;
  transform: translate(-50%, -50%) scale(1);
}

#popup-close {
  position: absolute; top: 1rem; right: 1rem;
  color: var(--color-gray);
  font-size: 1.1rem;
  transition: color var(--t-base);
}
#popup-close:hover { color: var(--color-gold); }

.popup-label {
  font-family: var(--font-en);
  font-size: 0.68rem;
  letter-spacing: 0.4em;
  color: var(--color-gold);
  margin-bottom: 1rem;
}

#promo-popup h2 {
  font-size: clamp(1.6rem, 4vw, 2.1rem);
  font-weight: 600;
  letter-spacing: 0.08em;
  line-height: 1.4;
  margin-bottom: 1.2rem;
}

.popup-body {
  font-size: 0.88rem;
  color: var(--color-gray-lt);
  line-height: 1.9;
  margin-bottom: 2rem;
}

.popup-skip button {
  font-size: 0.75rem;
  color: var(--color-gray);
  text-decoration: underline;
  margin-top: 1rem;
  transition: color var(--t-base);
}
.popup-skip button:hover { color: var(--color-gold); }

/* ════════════════════════════════════════
   ナビゲーション
════════════════════════════════════════ */
#site-header {
  position: fixed; top: 0; left: 0; right: 0;
  z-index: 1000;
  transition: background var(--t-base) var(--ease),
              box-shadow var(--t-base) var(--ease);
}
#site-header.scrolled {
  background: rgba(8,8,8,0.93);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: 0 1px 0 var(--color-border);
}

#main-nav {
  display: flex; align-items: center; justify-content: space-between;
  height: var(--nav-h);
  padding: 0 var(--pad-x);
  max-width: var(--max-w);
  margin: 0 auto;
  gap: 1.5rem;
}

.nav-logo { display: flex; flex-direction: column; line-height: 1.1; flex-shrink: 0; }
.logo-sub  { font-size: 0.58rem; letter-spacing: 0.25em; color: var(--color-gray); }
.logo-main { font-family: var(--font-en); font-size: 1.3rem; letter-spacing: 0.28em; color: var(--color-gold); }

.nav-links { display: flex; align-items: center; gap: clamp(1rem, 2.5vw, 2rem); }
.nav-link {
  font-family: var(--font-en);
  font-size: 0.78rem;
  letter-spacing: 0.22em;
  color: rgba(248,244,238,0.82);
  transition: color var(--t-base);
}
.nav-link:hover { color: var(--color-gold); }
.nav-reserve {
  padding: 0.45em 1.1em;
  border: 1px solid var(--color-gold);
  color: var(--color-gold);
  border-radius: var(--radius);
  transition: background var(--t-base), color var(--t-base);
}
.nav-reserve:hover { background: var(--color-gold); color: var(--color-bg); }

.nav-toggle { display: none; flex-direction: column; gap: 5px; padding: 8px; z-index: 1001; }
.nav-toggle span {
  display: block; width: 24px; height: 1.5px; background: var(--color-white);
  border-radius: 2px; transition: transform var(--t-base), opacity var(--t-base);
}
.nav-toggle.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav-toggle.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* ════════════════════════════════════════
   SECTION 1: ファーストビュー
   動画背景 + Ken Burns ズームアウト（フォールバック画像）
════════════════════════════════════════ */
#firstview {
  position: relative;
  height: 100svh;
  min-height: 560px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.fv-bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

/* フォールバック画像: Ken Burns ズームアウト */
.fv-img {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  animation: kbOut 12s ease-out forwards;
  transform-origin: center center;
}

/* 動画: 読み込み完了後に JS でフェードイン */
.fv-video {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: center;
  z-index: 1;
  opacity: 0;
  transition: opacity 1.2s ease;
}

@keyframes kbOut {
  0%   { transform: scale(1.10); }
  100% { transform: scale(1.00); }
}

/* 文字を守る半透明スクリム */
.fv-scrim {
  position: absolute;
  inset: 0;
  background: linear-gradient(160deg, rgba(0,0,0,0.45) 0%, rgba(0,0,0,0.72) 100%);
  z-index: 2;
}

.fv-content {
  position: relative;
  z-index: 3;
  text-align: center;
  padding: 0 var(--pad-x);
}

.fv-eyebrow {
  font-size: 0.75rem;
  letter-spacing: 0.5em;
  color: var(--color-gold-lt);
  margin-bottom: 1.2rem;
  opacity: 0;
  animation: loaderFade 0.9s ease 0.5s forwards;
}

.fv-title {
  font-family: var(--font-en);
  font-size: clamp(3.5rem, 11vw, 8.5rem);
  font-weight: 300;
  letter-spacing: 0.5em;
  color: var(--color-white);
  line-height: 1;
  margin-bottom: 1.5rem;
  opacity: 0;
  animation: loaderSlideUp 1s var(--ease-out) 0.8s forwards;
}

.fv-lead {
  font-size: clamp(0.85rem, 1.5vw, 1rem);
  color: rgba(248,244,238,0.80);
  line-height: 2;
  margin-bottom: 2.5rem;
  opacity: 0;
  animation: loaderFade 0.9s ease 1.2s forwards;
}

.fv-cta {
  opacity: 0;
  animation: loaderFade 0.9s ease 1.6s forwards;
}

#firstview .scroll-hint {
  position: absolute;
  bottom: 2.5rem;
  right: var(--pad-x);
  z-index: 3;
}

/* ════════════════════════════════════════
   SECTION 2: HERO スライダー
════════════════════════════════════════ */
#hero { position: relative; height: 100svh; min-height: 560px; overflow: hidden; }

.slider-container { position: relative; width: 100%; height: 100%; }
.slider-track { position: relative; width: 100%; height: 100%; }

.slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 1.2s var(--ease);
}
.slide.active { opacity: 1; z-index: 1; }

.slide-bg {
  position: absolute; inset: 0;
  background-size: cover; background-position: center;
  transform: scale(1.06);
  transition: transform 8s var(--ease);
  will-change: transform;
}
.slide.active .slide-bg { transform: scale(1); }

.slide-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(
    160deg, rgba(0,0,0,0.35) 0%, rgba(0,0,0,0.65) 60%, rgba(0,0,0,0.8) 100%
  );
}

.slide-content {
  position: absolute; bottom: 18%; left: var(--pad-x);
  max-width: 700px;
}

.slide-catch {
  font-size: clamp(0.78rem, 1.4vw, 0.9rem);
  letter-spacing: 0.4em;
  color: var(--color-gold-lt);
  margin-bottom: 1rem;
  opacity: 0; transform: translateY(16px);
  transition: opacity 0.9s 0.4s var(--ease-out), transform 0.9s 0.4s var(--ease-out);
}
.slide.active .slide-catch { opacity: 1; transform: translateY(0); }

.slide-title {
  font-size: clamp(2.4rem, 6vw, 5rem);
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: 0.06em;
  opacity: 0; transform: translateY(22px);
  transition: opacity 0.9s 0.65s var(--ease-out), transform 0.9s 0.65s var(--ease-out);
}
.slide-title em { font-style: normal; color: var(--color-gold); display: block; }
.slide.active .slide-title { opacity: 1; transform: translateY(0); }

.slider-btn {
  position: absolute; top: 50%; transform: translateY(-50%);
  z-index: 10;
  width: 48px; height: 48px;
  border-radius: 50%;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.2);
  color: var(--color-white);
  font-size: 1rem;
  transition: background var(--t-base), border-color var(--t-base);
  backdrop-filter: blur(4px);
}
.slider-btn:hover { background: rgba(201,168,76,0.25); border-color: var(--color-gold); }
.slider-prev { left: var(--pad-x); }
.slider-next { right: var(--pad-x); }

.slider-dots {
  position: absolute; bottom: 2rem; left: 50%; transform: translateX(-50%);
  display: flex; gap: 0.6rem; z-index: 10;
}
.slider-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: rgba(255,255,255,0.35);
  border: none; cursor: pointer;
  transition: background var(--t-base), transform var(--t-base);
}
.slider-dot.active { background: var(--color-gold); transform: scale(1.4); }

.scroll-hint {
  position: absolute; bottom: 2.5rem; right: var(--pad-x);
  display: flex; flex-direction: column; align-items: center; gap: 0.4rem;
  z-index: 10;
}
.scroll-hint-label {
  font-family: var(--font-en);
  font-size: 0.58rem; letter-spacing: 0.35em;
  color: rgba(248,244,238,0.5);
  writing-mode: vertical-rl;
}
.scroll-hint-line {
  width: 1px; height: 56px;
  background: linear-gradient(to bottom, rgba(248,244,238,0.5), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}
@keyframes scrollPulse {
  0%,100% { opacity:0.4; transform:scaleY(1);   }
  50%      { opacity:1;   transform:scaleY(0.5); }
}

/* ════════════════════════════════════════
   セクション共通
════════════════════════════════════════ */
section {
  position: relative;
}
.section-content {
  position: relative; z-index: 2;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: var(--sec-pad) var(--pad-x);
}
.section-header { text-align: center; margin-bottom: 4rem; }

.section-eyebrow {
  display: block;
  font-family: var(--font-en);
  font-size: 0.72rem;
  letter-spacing: 0.42em;
  color: var(--color-gold);
  margin-bottom: 1.2rem;
}

.section-heading {
  font-size: clamp(1.9rem, 4.5vw, 3.2rem);
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: 0.07em;
}

.section-sub {
  font-size: clamp(0.85rem, 1.5vw, 0.98rem);
  color: var(--color-gray-lt);
  line-height: 2;
  margin-top: 1.2rem;
}

.gold-text { color: var(--color-gold); }

/* スクロールアニメーション */
.reveal-up {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity var(--t-slow) var(--ease-out),
              transform var(--t-slow) var(--ease-out);
}
.reveal-up.visible { opacity: 1; transform: translateY(0); }
.reveal-up.delay-1 { transition-delay: 0.12s; }
.reveal-up.delay-2 { transition-delay: 0.24s; }
.reveal-up.delay-3 { transition-delay: 0.36s; }

/* ════════════════════════════════════════
   固定背景セクション（CONCEPT / ROOMS）
   background-attachment: fixed でカーテン切り替え効果
   ※ overflow: hidden を付けると fixed 背景が崩れるため設定しない
════════════════════════════════════════ */
.fixed-bg-section {
  min-height: 100vh;
  display: flex;
  align-items: center;
  background-attachment: fixed;
  background-size: cover;
  background-position: center center;
  background-repeat: no-repeat;
}

/* 暗幕オーバーレイ：JS 非依存の ::before で実装 */
.fixed-bg-section::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

#concept {
  background-image: url('images/concept_bg.jpg');
}
#concept::before {
  background: linear-gradient(135deg, rgba(0,0,0,0.78) 0%, rgba(10,6,2,0.68) 100%);
}

#rooms {
  background-image: url('images/rooms_bg.jpg');
}
#rooms::before {
  background: linear-gradient(to right, rgba(0,0,0,0.82) 0%, rgba(0,0,0,0.52) 100%);
}

/* iOS Safari は background-attachment: fixed 非対応のため scroll にフォールバック */
@supports (-webkit-touch-callout: none) {
  .fixed-bg-section { background-attachment: scroll; }
}

/* CONCEPT コンテンツ */
.concept-content { color: var(--color-white); }

.concept-lead {
  font-size: clamp(0.88rem, 1.6vw, 1.02rem);
  line-height: 2.1;
  color: var(--color-gray-lt);
  margin: 1.5rem 0 3rem;
  max-width: 600px;
}

.concept-pillars { display: flex; flex-direction: column; gap: 1.2rem; max-width: 520px; }
.pillar {
  display: grid;
  grid-template-columns: 2.5rem 1fr;
  grid-template-rows: auto auto;
  gap: 0 1rem;
  padding: 1.1rem 1.4rem;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--color-border);
  border-left: 2px solid var(--color-gold);
  backdrop-filter: blur(6px);
}
.pillar-num   { grid-row: 1/3; font-family: var(--font-en); font-size: 1.4rem; color: var(--color-gold); align-self: center; }
.pillar-title { font-size: 0.95rem; font-weight: 600; letter-spacing: 0.1em; }
.pillar-desc  { font-size: 0.78rem; color: var(--color-gray-lt); letter-spacing: 0.05em; margin-top: 0.15rem; }

/* ════════════════════════════════════════
   MENU セクション
════════════════════════════════════════ */
#menu { background: var(--color-surface); overflow: hidden; }

.menu-loading {
  display: flex; flex-direction: column; align-items: center; gap: 1rem;
  padding: 5rem 1rem; color: var(--color-gray);
}
.loading-ring {
  width: 40px; height: 40px;
  border: 2px solid var(--color-border);
  border-top-color: var(--color-gold);
  border-radius: 50%;
  animation: spin 0.9s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.menu-category { margin-bottom: 4.5rem; }

.menu-cat-header { margin-bottom: 0.6rem; }
.menu-cat-name {
  font-size: clamp(1.1rem, 2.5vw, 1.5rem);
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--color-gold);
  display: flex; align-items: center; gap: 1rem;
  padding-bottom: 0.7rem;
  border-bottom: 1px solid var(--color-border);
}
.menu-cat-name::before, .menu-cat-name::after {
  content: ''; display: block; width: 28px; height: 1px;
  background: var(--color-gold); opacity: 0.5;
}
.menu-cat-desc { font-size: 0.8rem; color: var(--color-gray); margin-top: 0.5rem; letter-spacing: 0.05em; }

.menu-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 295px), 1fr));
  gap: 1.5rem;
  margin-top: 1.8rem;
}

/* ホバーエフェクト */
.hover-effect { position: relative; overflow: hidden; }
.hover-effect img {
  transition: transform 0.65s cubic-bezier(0.4, 0, 0.2, 1);
  width: 100%; height: 100%; object-fit: cover;
}
.hover-effect:hover img { transform: scale(1.08); }

.hover-shine {
  position: absolute; inset: 0;
  background: linear-gradient(105deg, transparent 40%, rgba(255,255,255,0.18) 50%, transparent 60%);
  transform: translateX(-100%);
  transition: transform 0.6s ease;
  pointer-events: none;
}
.hover-effect:hover .hover-shine { transform: translateX(100%); }

.menu-card {
  background: var(--color-surface2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform var(--t-base) var(--ease),
              border-color var(--t-base),
              box-shadow var(--t-base);
  opacity: 0; transform: translateY(20px);
}
.menu-card.visible { opacity: 1; transform: translateY(0); transition: opacity 0.55s var(--ease-out), transform 0.55s var(--ease-out), border-color var(--t-base), box-shadow var(--t-base); }
.menu-card:hover { transform: translateY(-6px); border-color: rgba(201,168,76,0.4); box-shadow: 0 18px 44px rgba(0,0,0,0.5); }

.menu-card-img { position: relative; aspect-ratio: 3/2; }

.menu-badge {
  position: absolute; top: 0.7rem; left: 0.7rem;
  background: var(--color-gold); color: var(--color-bg);
  font-size: 0.65rem; font-weight: 700; letter-spacing: 0.1em;
  padding: 0.25em 0.7em; border-radius: 2px;
}

.menu-card-body { padding: 1.1rem 1.3rem 1.5rem; }
.menu-card-name {
  font-size: 0.97rem; font-weight: 600; letter-spacing: 0.06em;
  margin-bottom: 0.45rem;
}
.menu-card-desc {
  font-size: 0.78rem; color: var(--color-gray-lt); line-height: 1.85;
  margin-bottom: 0.9rem;
}
.menu-card-price {
  font-family: var(--font-en); font-size: 1.2rem; color: var(--color-gold); letter-spacing: 0.04em;
}
.menu-card-price::before { content: '¥'; font-size: 0.85em; margin-right: 0.1em; }
.menu-card-price::after  { font-family: var(--font-ja); font-size: 0.6rem; color: var(--color-gray); content: ' /人（税込）'; letter-spacing: 0.04em; }

.menu-note {
  text-align: center; font-size: 0.77rem; color: var(--color-gray);
  padding-top: 2rem; border-top: 1px solid var(--color-border);
  margin-top: 1rem; line-height: 2;
}

/* ════════════════════════════════════════
   ROOMS セクション
════════════════════════════════════════ */
.rooms-content { display: flex; flex-direction: column; gap: 3rem; }
.rooms-lead { font-size: clamp(0.88rem, 1.5vw, 1rem); color: var(--color-gray-lt); line-height: 2; max-width: 520px; margin-top: 1rem; }

.rooms-gallery { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.room-card { border: 1px solid var(--color-border); border-radius: var(--radius); overflow: hidden; transition: border-color var(--t-base); }
.room-card:hover { border-color: rgba(201,168,76,0.4); }
.room-img-wrap { aspect-ratio: 4/3; }
.room-info { padding: 0.9rem 1rem 1.1rem; }
.room-type { font-family: var(--font-en); font-size: 0.62rem; letter-spacing: 0.35em; color: var(--color-gold); margin-bottom: 0.2rem; }
.room-name { font-size: 0.92rem; font-weight: 600; letter-spacing: 0.08em; }
.room-cap  { font-size: 0.74rem; color: var(--color-gray); margin-top: 0.15rem; letter-spacing: 0.06em; }

/* ════════════════════════════════════════
   REVIEWS セクション
════════════════════════════════════════ */
#reviews { background: var(--color-surface); overflow: hidden; }

.star-row { display: flex; align-items: center; gap: 0.5rem; justify-content: center; margin-top: 1rem; }
.stars { color: var(--color-gold); font-size: 1.1rem; letter-spacing: 0.1em; }
.rating-num { font-family: var(--font-en); font-size: 1.2rem; color: var(--color-gold); }
.rating-count { font-size: 0.78rem; color: var(--color-gray); }

.review-slider-wrap { overflow: hidden; padding: 0 0 3rem; position: relative; }
.review-slider-wrap::before,
.review-slider-wrap::after {
  content: ''; position: absolute; top: 0; bottom: 0; width: 6rem; z-index: 2; pointer-events: none;
}
.review-slider-wrap::before { left: 0;  background: linear-gradient(to right,  var(--color-surface), transparent); }
.review-slider-wrap::after  { right: 0; background: linear-gradient(to left, var(--color-surface), transparent); }

.review-track {
  display: flex; gap: 1.5rem;
  animation: reviewScroll 40s linear infinite;
  width: max-content;
}
.review-track:hover { animation-play-state: paused; }

@keyframes reviewScroll {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

.review-card {
  width: 320px; flex-shrink: 0;
  background: var(--color-surface2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.6rem 1.8rem;
}
.review-stars { color: var(--color-gold); font-size: 0.9rem; letter-spacing: 0.08em; margin-bottom: 0.8rem; }
.review-text { font-size: 0.83rem; line-height: 1.9; color: var(--color-gray-lt); margin-bottom: 1.2rem; }
.review-meta { display: flex; align-items: center; gap: 0.8rem; }
.review-avatar {
  width: 36px; height: 36px; border-radius: 50%;
  background: var(--color-gold-dk);
  display: flex; align-items: center; justify-content: center;
  font-size: 0.82rem; font-weight: 600; color: var(--color-bg);
  flex-shrink: 0;
}
.review-name  { font-size: 0.85rem; font-weight: 600; }
.review-date  { font-size: 0.72rem; color: var(--color-gray); margin-top: 0.1rem; }

/* ════════════════════════════════════════
   INSTAGRAM グリッド
════════════════════════════════════════ */
#instagram { background: var(--color-surface2); }
.insta-content { text-align: center; }
.insta-header { margin-bottom: 2rem; }
.insta-handle { font-family: var(--font-en); font-size: 1.1rem; letter-spacing: 0.15em; color: var(--color-gray-lt); }

.insta-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 4px;
  margin-bottom: 2.5rem;
}

.insta-item { position: relative; aspect-ratio: 1/1; overflow: hidden; }
.insta-item img,
.insta-item video {
  width: 100%; height: 100%;
  object-fit: cover; object-position: center;
  transition: transform 0.6s var(--ease);
  display: block;
}
.insta-item:hover img,
.insta-item:hover video { transform: scale(1.08); }

.insta-item-wide {
  grid-column: 1 / -1;
  aspect-ratio: 16 / 9;
}

.insta-overlay {
  position: absolute; inset: 0;
  background: rgba(0,0,0,0);
  display: flex; align-items: center; justify-content: center;
  transition: background 0.4s var(--ease);
}
.insta-item:hover .insta-overlay { background: rgba(0,0,0,0.45); }
.insta-icon {
  color: white; font-size: 2rem; opacity: 0;
  transform: scale(0.7);
  transition: opacity 0.35s var(--ease), transform 0.35s var(--ease);
}
.insta-item:hover .insta-icon { opacity: 1; transform: scale(1); }
.insta-cta { margin: 0 auto; display: block; width: fit-content; }

/* ════════════════════════════════════════
   ACCESS セクション
════════════════════════════════════════ */
#access { background: var(--color-surface); }

.access-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  margin-top: 2.5rem;
}

.info-list { display: flex; flex-direction: column; gap: 0; }
.info-row {
  display: grid;
  grid-template-columns: 6rem 1fr;
  gap: 0.5rem 1rem;
  padding: 1.1rem 0;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.88rem;
}
.info-row:first-child { border-top: 1px solid var(--color-border); }
.info-row dt { font-family: var(--font-en); font-size: 0.68rem; letter-spacing: 0.28em; color: var(--color-gold); display: flex; align-items: flex-start; padding-top: 0.15em; }
.info-row dd { line-height: 1.75; }
.info-row dd small { font-size: 0.78rem; color: var(--color-gray); }
.tel-link { font-family: var(--font-en); font-size: 1.1rem; color: var(--color-gold); letter-spacing: 0.05em; }

.access-actions { display: flex; flex-direction: column; gap: 0.9rem; margin-top: 2rem; }

.map-placeholder {
  height: 100%; min-height: 260px;
  background: var(--color-surface2);
  border: 1px dashed var(--color-border);
  border-radius: var(--radius);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 0.5rem; color: var(--color-gray); font-size: 0.85rem;
}
.map-note { font-size: 0.72rem; color: rgba(136,134,128,0.55); }

/* ════════════════════════════════════════
   フッター
════════════════════════════════════════ */
#site-footer {
  background: #030303;
  border-top: 1px solid var(--color-border);
  padding: 4rem var(--pad-x) 6rem;
}
.footer-inner { max-width: var(--max-w); margin: 0 auto; display: flex; flex-direction: column; align-items: center; gap: 1.5rem; text-align: center; }
.footer-logo-sub  { font-size: 0.65rem; letter-spacing: 0.28em; color: var(--color-gray); }
.footer-logo-main { font-family: var(--font-en); font-size: 1.5rem; letter-spacing: 0.4em; color: var(--color-gold); }
.footer-demo-label { font-size: 0.62rem; color: rgba(201,168,76,0.4); margin-top: 0.2rem; }
.footer-nav { display: flex; flex-wrap: wrap; justify-content: center; gap: 0.4rem 1.8rem; }
.footer-nav a { font-family: var(--font-en); font-size: 0.7rem; letter-spacing: 0.22em; color: var(--color-gray); transition: color var(--t-base); }
.footer-nav a:hover { color: var(--color-gold); }
.footer-address { font-size: 0.75rem; color: var(--color-gray); letter-spacing: 0.04em; }
.footer-address a { color: var(--color-gray-lt); transition: color var(--t-base); }
.footer-address a:hover { color: var(--color-gold); }
.footer-copy { font-size: 0.65rem; color: rgba(136,134,128,0.42); letter-spacing: 0.06em; }

/* ════════════════════════════════════════
   スマホ固定フッター（CTA）
════════════════════════════════════════ */
#mobile-cta {
  display: none;
  position: fixed; bottom: 0; left: 0; right: 0;
  z-index: 900;
  grid-template-columns: 1fr 1fr;
  height: 60px;
}
.mobile-cta-btn {
  display: flex; align-items: center; justify-content: center;
  gap: 0.45rem;
  font-size: 0.82rem; font-weight: 600; letter-spacing: 0.06em;
  transition: filter 0.2s;
}
.mobile-cta-btn:active { filter: brightness(0.85); }
.mobile-cta-tel    { background: var(--color-gold); color: var(--color-bg); }
.mobile-cta-access { background: var(--color-surface2); color: var(--color-white); border-top: 1px solid var(--color-border); }

/* ════════════════════════════════════════
   LINE 固定ボタン
════════════════════════════════════════ */
#line-btn {
  position: fixed; bottom: 1.5rem; right: 1.5rem;
  z-index: 901;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 0.2rem;
  width: 64px; height: 64px;
  border-radius: 50%;
  background: #06C755;
  color: white;
  box-shadow: 0 4px 16px rgba(6,199,85,0.4);
  transition: transform 0.2s var(--ease), box-shadow 0.2s;
  text-align: center;
}
#line-btn span { font-size: 0.55rem; line-height: 1.2; letter-spacing: 0.03em; }
#line-btn:hover { transform: scale(1.08); box-shadow: 0 6px 22px rgba(6,199,85,0.55); }

/* ════════════════════════════════════════
   レスポンシブ
════════════════════════════════════════ */
@media (max-width: 1024px) {
  .rooms-gallery { grid-template-columns: repeat(3,1fr); gap: 0.75rem; }
}

@media (max-width: 768px) {
  :root { --nav-h: 64px; }

  .nav-toggle { display: flex; }

  .nav-links {
    position: fixed; top: 0; right: 0; bottom: 0;
    width: min(300px, 80vw);
    flex-direction: column; align-items: flex-start;
    justify-content: center;
    padding: 5rem 2rem 2rem;
    gap: 2rem;
    background: rgba(8,8,8,0.97);
    backdrop-filter: blur(16px);
    border-left: 1px solid var(--color-border);
    transform: translateX(100%);
    transition: transform 0.4s var(--ease-out);
  }
  .nav-links.open { transform: translateX(0); }
  .nav-link { font-size: 1rem; }

  #mobile-cta { display: grid; }
  #line-btn   { bottom: 4.5rem; }

  #site-footer { padding-bottom: 5rem; }

  .slide-content { bottom: 25%; }

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

  .rooms-gallery { grid-template-columns: 1fr; }

  .insta-grid { grid-template-columns: repeat(3,1fr); }

  .concept-pillars { gap: 0.75rem; }
}

@media (max-width: 480px) {
  .insta-grid { grid-template-columns: repeat(2,1fr); }
  .access-actions { gap: 0.7rem; }
  .access-actions .btn { font-size: 0.82rem; padding: 0.8em 1.5em; }
}