/* ============================================================
   BISTRO AOKI — base.css（デザイントークン＋共通基盤）
   ============================================================ */

/* ---------- Tokens ---------- */
:root {
  /* 地 */
  --bg: #1A1412;
  --bg-alt: #221B18;
  --surface: #302826;
  /* 文字 */
  --ink: #F0EBE3;
  --ink-2: #C4BAB0;
  --ink-3: #9A8E85;
  --head: #F5F0E8;
  /* 差し色（色面として使う） */
  --gold: #C9A96E;
  --gold-light: #D4BC8A;
  --gold-dark: #A8884E;
  --bordeaux: #6B1D2A;
  --bordeaux-deep: #4A0F1A;
  /* 明帯（明暗リズム用） */
  --cream: #EFE9DE;
  --cream-ink: #1A1412;
  --cream-ink-2: #5C534B;
  /* 線 */
  --hairline: rgba(201, 169, 110, .22);
  --hairline-strong: rgba(201, 169, 110, .45);
  --hairline-cream: rgba(26, 20, 18, .18);
  /* 書体 */
  --font-display: "Playfair Display", "Noto Serif JP", serif;
  --font-accent: "Cormorant Garamond", "Noto Serif JP", serif;
  --font-ja-serif: "Noto Serif JP", serif;
  --font-body: "Noto Sans JP", sans-serif;
  /* タイポスケール（アンカー: h1=4.75vw・本文比5倍・行間0.9系） */
  --fs-display-xl: clamp(2.75rem, 6.6vw, 5.75rem);   /* 44→92px */
  --fs-display-lg: clamp(2.125rem, 4.2vw, 3.625rem); /* 34→58px */
  --fs-display-md: clamp(1.5rem, 2.6vw, 2.25rem);    /* 24→36px */
  --fs-ja-head: clamp(1.25rem, 2vw, 1.75rem);        /* 20→28px */
  --fs-body: .9375rem;                                /* 15px */
  --fs-small: .8125rem;
  --fs-caption: .75rem;
  /* 余白（アンカー: 6.94vw システム） */
  --sec-pad: clamp(4.5rem, 6.9vw, 8.5rem);
  --sec-pad-sm: clamp(3rem, 4.6vw, 5.5rem);
  --gutter: clamp(1.25rem, 3.5vw, 3.5rem);
  /* コンテナ */
  --container: 1360px;
  --container-narrow: 880px;
  /* ヘッダー */
  --header-h: 72px;
  /* モーション人格（アンカー: 0.3s ease-in-out / 遷移0.6s） */
  --ease: cubic-bezier(.25, .1, .25, 1);
  --ease-out: cubic-bezier(.16, 1, .3, 1);
  --dur: .3s;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html {
  -webkit-text-size-adjust: 100%;
  scroll-padding-top: calc(var(--header-h) + 16px);
  overflow-x: clip;
}
body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 1.9;
  font-feature-settings: "palt";
  letter-spacing: .04em;
  line-break: strict;
  overflow-x: clip; /* sticky温存のためhiddenでなくclip（htmlにも同保険あり） */
  min-height: 100vh;
  min-height: 100svh;
}
/* 質感ノイズ（旧サイトから継承・AIフラット地の回避） */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)' opacity='0.5'/%3E%3C/svg%3E");
  opacity: .04;
}
main { position: relative; z-index: 1; }
img, video { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { font: inherit; color: inherit; background: none; border: none; cursor: pointer; }
::selection { background: var(--bordeaux); color: var(--ink); }
:focus-visible { outline: 2px solid var(--gold); outline-offset: 3px; }
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
.skip-link {
  position: fixed; top: -48px; left: 16px; z-index: 300;
  background: var(--gold); color: var(--bg);
  padding: 10px 18px; font-size: var(--fs-small);
  transition: top var(--dur) var(--ease);
}
.skip-link:focus { top: 12px; }

/* ---------- 写真の統一トーン（旧サイト継承） ---------- */
.photo { filter: contrast(1.05) brightness(.98); }
/* 行頭孤立防止: 語のまとまりを分割させない */
.nb { display: inline-block; }

/* ---------- Typography ---------- */
.display-xl, .display-lg, .display-md {
  font-family: var(--font-display);
  font-weight: 400;
  color: var(--head);
  text-transform: uppercase;
  line-height: .98;
  letter-spacing: .02em;
}
.display-xl { font-size: var(--fs-display-xl); }
.display-lg { font-size: var(--fs-display-lg); }
.display-md { font-size: var(--fs-display-md); line-height: 1.12; }
.display-it { font-style: italic; text-transform: none; letter-spacing: .01em; }

/* 英キッカー＋和文の2段見出し（字間0.15em・行間1.8） */
.eyebrow {
  display: block;
  font-family: var(--font-accent);
  font-size: var(--fs-caption);
  font-weight: 500;
  color: var(--gold);
  text-transform: uppercase;
  letter-spacing: .32em;
  margin-bottom: 1.1em;
}
.ja-head {
  font-family: var(--font-ja-serif);
  font-size: var(--fs-ja-head);
  font-weight: 500;
  color: var(--head);
  letter-spacing: .14em;
  line-height: 1.8;
}
.ja-sub {
  font-family: var(--font-ja-serif);
  font-size: var(--fs-small);
  color: var(--ink-2);
  letter-spacing: .22em;
}
.lead { color: var(--ink-2); max-width: 38em; }
.price {
  font-family: var(--font-accent);
  font-weight: 500;
  font-size: 1.0625rem;
  letter-spacing: .06em;
  color: var(--head);
  font-variant-numeric: lining-nums;
}
.caption {
  font-size: var(--fs-caption);
  color: var(--ink-3);
  letter-spacing: .18em;
  text-transform: uppercase;
  font-family: var(--font-accent);
}

/* ---------- Layout ---------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.container--narrow { max-width: var(--container-narrow); }
.band { padding-block: var(--sec-pad); position: relative; }
.band--sm { padding-block: var(--sec-pad-sm); }
.band--alt { background: var(--bg-alt); }
.band--surface { background: var(--surface); }
.band--bordeaux { background: var(--bordeaux); }
.band--bordeaux-deep { background: var(--bordeaux-deep); }
/* 明帯（明暗リズム）: 中の文字色を一括反転 */
.band--cream { background: var(--cream); color: var(--cream-ink-2); }
.band--cream .display-xl, .band--cream .display-lg, .band--cream .display-md,
.band--cream .ja-head, .band--cream .price { color: var(--cream-ink); }
.band--cream .lead { color: var(--cream-ink-2); }
.band--cream .caption { color: rgba(26, 20, 18, .62); } /* 4.75:1 (小サイズAA) */
.band--cream .eyebrow { color: var(--bordeaux); }
.band--cream .ja-sub { color: var(--cream-ink-2); }

/* フルブリード写真帯（アンカーの核・視差対象） */
.bleed {
  position: relative;
  overflow: hidden;
  min-height: 72vh;
  min-height: 72svh;
  display: flex;
  flex-direction: column;
}
.bleed--tall { min-height: 100vh; min-height: 100svh; }
.bleed--short { min-height: 46vh; min-height: 46svh; }
.bleed__media {
  position: absolute;
  inset: -12% 0; /* 視差の移動しろ */
  z-index: 0;
}
.bleed__media img, .bleed__media video {
  width: 100%; height: 100%;
  object-fit: cover;
}
.bleed__shade {
  position: absolute; inset: 0; z-index: 1;
  background: linear-gradient(180deg, rgba(26,20,18,.42), rgba(26,20,18,.18) 45%, rgba(26,20,18,.55));
}
.bleed__content {
  position: relative; z-index: 2;
  flex: 1;
  display: flex; flex-direction: column;
}

/* 非対称エディトリアル（12カラム） */
.ed-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: clamp(1rem, 2.4vw, 2.5rem);
  align-items: start;
}
@media (max-width: 767px) {
  .ed-grid { display: block; }
  .ed-grid > * + * { margin-top: 2.25rem; }
}

/* ---------- Buttons / Links ---------- */
.btn {
  display: inline-block;
  font-family: var(--font-accent);
  font-size: var(--fs-small);
  font-weight: 500;
  letter-spacing: .28em;
  text-transform: uppercase;
  color: var(--head);
  border: 1px solid var(--hairline-strong);
  padding: 1em 2.4em .9em;
  transition: background-color var(--dur) var(--ease), color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.btn:hover { background: var(--gold); border-color: var(--gold); color: var(--bg); }
.btn--solid { background: var(--gold); border-color: var(--gold); color: var(--bg); }
.btn--solid:hover { background: var(--gold-light); border-color: var(--gold-light); }
.band--cream .btn { color: var(--cream-ink); border-color: rgba(26,20,18,.4); }
.band--cream .btn:hover { background: var(--cream-ink); border-color: var(--cream-ink); color: var(--cream); }

/* テキストリンク（アンカーのbtn-secondary型: 矢印＋uppercase） */
.text-link {
  display: inline-flex;
  align-items: center;
  gap: .7em;
  font-family: var(--font-accent);
  font-size: var(--fs-small);
  font-weight: 500;
  letter-spacing: .26em;
  text-transform: uppercase;
  color: var(--gold);
  transition: gap var(--dur) var(--ease), color var(--dur) var(--ease);
}
.text-link::after {
  content: "";
  width: 2.2em; height: 1px;
  background: currentColor;
  transition: width var(--dur) var(--ease);
}
.text-link:hover { color: var(--gold-light); }
.text-link:hover::after { width: 3.4em; }
.band--cream .text-link { color: var(--bordeaux); }
.band--cream .text-link:hover { color: var(--bordeaux-deep); }

/* ---------- Header ---------- */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 200;
  transition: background-color .35s var(--ease), border-color .35s var(--ease);
  border-bottom: 1px solid transparent;
}
.header.is-scrolled {
  background: rgba(26, 20, 18, .92);
  border-bottom-color: rgba(201, 169, 110, .14);
}
.header__inner {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  height: var(--header-h);
  padding-inline: var(--gutter);
  max-width: 1600px;
  margin-inline: auto;
}
.header__nav-left { display: flex; gap: 2.4em; justify-content: flex-start; }
.header__nav-right { display: flex; gap: 2.4em; justify-content: flex-end; align-items: center; }
.header__nav-link {
  font-family: var(--font-accent);
  font-size: var(--fs-small);
  font-weight: 500;
  letter-spacing: .24em;
  text-transform: uppercase;
  color: var(--ink);
  position: relative;
  padding-block: .4em;
}
.header__nav-link::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 100%; height: 1px;
  background: var(--gold);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--dur) var(--ease);
}
.header__nav-link:hover::after,
.header__nav-link[aria-current="page"]::after { transform: scaleX(1); transform-origin: left; }
.header__logo { display: block; justify-self: center; }
.header__logo img { width: 150px; height: 50px; }
.header__reserve {
  border: 1px solid rgba(240, 235, 227, .35);
  padding: .55em 1.3em .45em;
  font-family: var(--font-accent);
  font-size: var(--fs-caption);
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--head);
  transition: background-color var(--dur) var(--ease), color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.header__reserve:hover { background: var(--gold); border-color: var(--gold); color: var(--bg); }
.header__hamburger { display: none; }

@media (max-width: 1023px) {
  .header__nav-left, .header__nav-right { display: none; }
  .header__inner { grid-template-columns: auto 1fr auto; }
  .header__logo { justify-self: start; }
  .header__hamburger {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 7px;
    width: 44px; height: 44px;
    align-items: center;
  }
  .header__hamburger span {
    display: block;
    width: 26px; height: 1px;
    background: var(--ink);
    transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease);
  }
  .header__hamburger.is-open span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
  .header__hamburger.is-open span:nth-child(2) { opacity: 0; }
  .header__hamburger.is-open span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }
}

/* ---------- Mobile Nav ---------- */
.mobile-nav {
  position: fixed;
  inset: 0;
  z-index: 190;
  background: rgba(26, 20, 18, .98);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity .45s var(--ease), visibility 0s linear .45s;
}
.mobile-nav.is-open {
  opacity: 1;
  visibility: visible;
  transition: opacity .45s var(--ease);
}
.mobile-nav__list {
  display: flex;
  flex-direction: column;
  gap: 1.6em;
  text-align: center;
}
.mobile-nav__link {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 7vw, 2.5rem);
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--head);
  line-height: 1.1;
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .5s var(--ease-out), transform .5s var(--ease-out);
}
.mobile-nav.is-open .mobile-nav__link { opacity: 1; transform: none; }
.mobile-nav.is-open .mobile-nav__link:nth-child(1) { transition-delay: .08s; }
.mobile-nav.is-open .mobile-nav__link:nth-child(2) { transition-delay: .14s; }
.mobile-nav.is-open .mobile-nav__link:nth-child(3) { transition-delay: .2s; }
.mobile-nav.is-open .mobile-nav__link:nth-child(4) { transition-delay: .26s; }
.mobile-nav.is-open .mobile-nav__link:nth-child(5) { transition-delay: .32s; }
.mobile-nav.is-open .mobile-nav__link:nth-child(6) { transition-delay: .38s; }
.mobile-nav.is-open .mobile-nav__link:nth-child(7) { transition-delay: .44s; }
.mobile-nav__ja {
  display: block;
  font-family: var(--font-ja-serif);
  font-size: .6875rem;
  letter-spacing: .3em;
  color: var(--gold);
  margin-top: .5em;
}

/* ---------- 下層ページヒーロー（アンカーmenu実測: 小型・下揃え） ---------- */
.page-hero {
  position: relative;
  overflow: hidden;
  min-height: 52vh;
  min-height: 52svh;
  display: flex;
  align-items: flex-end;
}
.page-hero__media { position: absolute; inset: -12% 0; z-index: 0; }
.page-hero__media img { width: 100%; height: 100%; object-fit: cover; }
.page-hero__shade {
  position: absolute; inset: 0; z-index: 1;
  background: linear-gradient(180deg, rgba(26,20,18,.5), rgba(26,20,18,.15) 50%, rgba(26,20,18,.78));
}
.page-hero__content {
  position: relative; z-index: 2;
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding: 0 var(--gutter) clamp(2.5rem, 5vw, 4.5rem);
}
/* 写真上のキャプションは明部でも沈まない色＋滲みシャドウ（明部実効≈5.9:1） */
.hero__kicker, .hero__scroll-text, .page-hero__content .caption {
  color: var(--ink);
  text-shadow: 0 1px 12px rgba(26, 20, 18, .55);
}

/* ---------- 色面パネル（split: 写真×色面。アンカーの核） ---------- */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 100vh;
  min-height: 100svh;
}
.split--flip .split__media { order: 2; }
.split--flip .split__panel { order: 1; }
.split__media { position: relative; overflow: hidden; }
.split__media img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.split__panel {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 3rem;
  padding: clamp(2.5rem, 4.6vw, 5rem);
}
.split__panel--bordeaux { background: var(--bordeaux); }
.split__panel--surface { background: var(--surface); }
.split__panel--cream { background: var(--cream); color: var(--cream-ink-2); }
.split__panel--cream .display-lg, .split__panel--cream .display-md, .split__panel--cream .ja-head { color: var(--cream-ink); }
@media (max-width: 767px) {
  .split { grid-template-columns: 1fr; min-height: 0; }
  .split--flip .split__media { order: 1; }
  .split--flip .split__panel { order: 2; }
  .split__media { aspect-ratio: 4 / 3; }
  .split__media img { position: absolute; }
}

/* クロスフェード・ギャラリー（split内・アンカー実測0.6s） */
.xfade { position: absolute; inset: 0; }
.xfade__slide {
  position: absolute; inset: 0;
  opacity: 0;
  visibility: hidden;
  transition: opacity .6s var(--ease), visibility .6s;
}
.xfade__slide.is-active { opacity: 1; visibility: visible; }
.xfade__slide img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.xfade__dots {
  position: absolute;
  left: clamp(1.25rem, 2.5vw, 2.5rem);
  bottom: clamp(1.25rem, 2.5vw, 2.5rem);
  z-index: 3;
  display: flex;
  gap: 8px;
}
.xfade__dot {
  width: 14px; height: 2px;
  background: rgba(240, 235, 227, .45);
  transition: width var(--dur) var(--ease), background-color var(--dur) var(--ease);
}
.xfade__dot.is-active { width: 30px; background: var(--gold); }

/* ---------- 写真上の情報パネル重ね（アンカーAccess帯） ---------- */
.overlay-panel {
  position: relative;
  z-index: 2;
  background: var(--bordeaux-deep);
  padding: clamp(2rem, 3.6vw, 3.5rem);
  max-width: 480px;
}

/* ---------- 細罫メニューリスト（アンカーmenu実測） ---------- */
.menu-list { display: grid; gap: 0; }
.menu-list__item {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 1.5rem;
  align-items: baseline;
  padding-block: 1.05rem;
  border-bottom: 1px solid var(--hairline);
}
.menu-list__name {
  font-family: var(--font-accent);
  font-size: 1.1875rem;
  font-style: italic;
  font-weight: 500;
  letter-spacing: .04em;
  color: var(--head);
  line-height: 1.4;
}
.menu-list__name-ja {
  display: block;
  font-family: var(--font-ja-serif);
  font-style: normal;
  font-size: var(--fs-small);
  color: var(--ink-2);
  letter-spacing: .12em;
  margin-top: .3em;
}
.menu-list__desc {
  font-size: var(--fs-caption);
  color: var(--ink-3);
  letter-spacing: .06em;
  margin-top: .35em;
  font-family: var(--font-body);
}
.band--cream .menu-list__item { border-bottom-color: var(--hairline-cream); }
.band--cream .menu-list__name { color: var(--cream-ink); }
.band--cream .menu-list__name-ja, .band--cream .menu-list__desc { color: var(--cream-ink-2); }

/* ---------- カード（画像＋下部キャプション。アンカーcard-content） ---------- */
.photo-card { position: relative; display: block; overflow: hidden; }
.photo-card__media { position: relative; overflow: hidden; aspect-ratio: 3 / 4; }
.photo-card__media img {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform .8s var(--ease-out), filter .8s var(--ease-out);
}
.photo-card:hover .photo-card__media img { transform: scale(1.05); filter: contrast(1.08) brightness(1.02); }
.photo-card__body { padding-top: 1.1rem; }
.photo-card__title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  text-transform: uppercase;
  letter-spacing: .05em;
  color: var(--head);
  line-height: 1.2;
}
.photo-card__meta {
  font-size: var(--fs-caption);
  color: var(--ink-3);
  letter-spacing: .14em;
  margin-top: .4em;
  font-family: var(--font-accent);
  text-transform: uppercase;
}

/* ---------- Reserve CTA帯（全ページ共通・色面化） ---------- */
.reserve-cta {
  background: var(--bordeaux);
  padding-block: var(--sec-pad);
  text-align: left;
}
.reserve-cta__inner {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: clamp(1rem, 2.4vw, 2.5rem);
  align-items: end;
}
.reserve-cta__title { grid-column: 1 / 8; }
.reserve-cta__side {
  grid-column: 9 / 13;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 1.4rem;
}
.reserve-cta__tel {
  font-family: var(--font-accent);
  font-size: clamp(1.375rem, 2.2vw, 1.875rem);
  letter-spacing: .1em;
  color: var(--head);
}
.reserve-cta .eyebrow { color: var(--gold-light); }
.reserve-cta .btn { border-color: rgba(240, 235, 227, .5); }
.reserve-cta .btn:hover { background: var(--ink); border-color: var(--ink); color: var(--bordeaux); }
@media (max-width: 767px) {
  .reserve-cta__inner { display: block; }
  .reserve-cta__side { margin-top: 2rem; }
}

/* ---------- Footer（巨大ワードマーク＝アンカー/GEM共通意匠） ---------- */
.footer {
  position: relative;
  z-index: 1;
  border-top: 1px solid var(--hairline);
  padding-top: var(--sec-pad-sm);
  overflow: hidden;
}
.footer__grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: clamp(1.5rem, 3vw, 3rem);
  padding-bottom: var(--sec-pad-sm);
}
.footer__brand { grid-column: 1 / 5; }
.footer__brand img { width: 150px; height: 50px; margin-bottom: 1.4rem; }
.footer__info { font-size: var(--fs-small); color: var(--ink-2); letter-spacing: .06em; }
.footer__col { grid-column: span 2; }
.footer__col--wide { grid-column: span 3; }
.footer__col-title {
  font-family: var(--font-accent);
  font-size: var(--fs-caption);
  text-transform: uppercase;
  letter-spacing: .3em;
  color: var(--gold);
  margin-bottom: 1.2em;
}
.footer__link {
  display: block;
  font-size: var(--fs-small);
  color: var(--ink-2);
  letter-spacing: .1em;
  padding-block: .35em;
  transition: color var(--dur) var(--ease);
}
.footer__link:hover { color: var(--gold); }
.footer__meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding-block: 1.1rem;
  border-top: 1px solid var(--hairline);
  font-size: var(--fs-caption);
  color: var(--ink-3);
  letter-spacing: .1em;
}
.footer__wordmark {
  display: block;
  width: 100%;
  overflow: hidden;
  padding-top: clamp(1rem, 2vw, 2rem);
}
.footer__wordmark svg { display: block; width: 100%; height: auto; }
.footer__wordmark text {
  font-family: var(--font-display);
  fill: var(--head);
  letter-spacing: .04em;
}
@media (max-width: 767px) {
  .footer__grid { display: block; }
  .footer__grid > * + * { margin-top: 2rem; }
  .footer__meta { flex-direction: column; align-items: flex-start; gap: .4rem; }
}

/* ---------- ライトボックス（main.js #11 が生成） ---------- */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 350;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity .4s var(--ease), visibility 0s linear .4s;
}
.lightbox.is-open { opacity: 1; visibility: visible; transition: opacity .4s var(--ease); }
.lightbox__backdrop { position: absolute; inset: 0; background: rgba(15, 11, 9, .93); }
.lightbox__figure {
  position: relative;
  z-index: 1;
  max-width: min(1100px, 88vw);
  max-height: 84vh;
  max-height: 84svh;
  display: flex;
  flex-direction: column;
  gap: .9rem;
}
.lightbox__img { max-width: 100%; max-height: 76vh; max-height: 76svh; width: auto; height: auto; object-fit: contain; margin-inline: auto; }
.lightbox__caption {
  text-align: center;
  font-family: var(--font-ja-serif);
  font-size: var(--fs-small);
  letter-spacing: .16em;
  color: var(--ink-2);
}
.lightbox__close, .lightbox__prev, .lightbox__next {
  position: absolute;
  z-index: 2;
  width: 52px; height: 52px;
  display: flex; align-items: center; justify-content: center;
  color: var(--ink);
  font-size: 1.4rem;
  border: 1px solid var(--hairline);
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}
.lightbox__close:hover, .lightbox__prev:hover, .lightbox__next:hover { border-color: var(--gold); color: var(--gold); }
.lightbox__close { top: max(16px, 2.5vh); right: max(16px, 2.5vw); }
.lightbox__prev { left: max(10px, 2vw); top: 50%; transform: translateY(-50%); }
.lightbox__next { right: max(10px, 2vw); top: 50%; transform: translateY(-50%); }
@media (max-width: 767px) {
  .lightbox__prev { left: 8px; top: auto; bottom: 12px; transform: none; }
  .lightbox__next { right: 8px; top: auto; bottom: 12px; transform: none; }
}

/* ---------- 汎用 ---------- */
.hairline { border: 0; border-top: 1px solid var(--hairline); }
.u-gold { color: var(--gold); }
.u-right { text-align: right; }
.u-center { text-align: center; }

/* タブレット調整 */
@media (max-width: 1023px) {
  :root { --header-h: 64px; }
  .footer__brand { grid-column: 1 / 7; }
  .footer__col, .footer__col--wide { grid-column: span 3; }
}
@media (max-width: 767px) {
  :root { --sec-pad: clamp(3.5rem, 14vw, 5rem); }
  body { font-size: .875rem; }
}