/* ==========================================================
   Gallery & Space 古記 -Koki-
   ========================================================== */

:root {
  /* 地を暗く：--paper=背景 / --ink=文字（名称は据え置き） */
  --paper:      #171614;   /* charcoal black */
  --paper-sub:  #1e1c19;
  --ink:        #ece8e1;   /* warm off-white */
  --ink-mid:    #b4aea5;
  --ink-soft:   #7f7a72;   /* soft gray */
  --brass:      #a98c62;   /* muted brass */
  --rule:       rgba(236,232,225,0.15);
  --rule-soft:  rgba(236,232,225,0.08);

  --en:    'Cormorant Garamond', Georgia, serif;
  --ja-dp: 'Shippori Mincho', 'Yu Mincho', serif;
  --ja:    'Noto Serif JP', 'Yu Mincho', serif;
  --sans:  'Noto Sans JP', Helvetica, Arial, sans-serif;

  --ease: 0.5s cubic-bezier(0.22,0.61,0.36,1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--ja);
  font-weight: 300;
  font-size: 15px;
  line-height: 2.25;          /* generous leading for Japanese */
  letter-spacing: 0.02em;     /* minimal tracking in body text */
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  /* 日本語の語句を不自然に割らない／英単語を割らない */
  word-break: normal;
  line-break: strict;
  overflow-wrap: normal;
  hyphens: none;
}
p { text-wrap: pretty; }
h1, h2, h3 { text-wrap: balance; font-weight: 400; }

img { display: block; width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { font-family: inherit; background: none; border: none; cursor: pointer; color: inherit; }

.wrap { max-width: 1120px; margin: 0 auto; padding: 0 56px; }

/* 英字の固有名詞を行末で割らない */
.nb { white-space: nowrap; }

/* 読みやすさのため本文の行長を抑える */
.measure { max-width: 34em; }

/* ==========================================================
   NAV
   ========================================================== */
#navbar {
  position: fixed;
  inset: 0 0 auto;
  z-index: 800;
  padding: 32px 56px;
  border-bottom: 1px solid transparent;
  transition: padding var(--ease), background var(--ease), border-color var(--ease);
}
#navbar.scrolled {
  background: var(--paper);
  border-bottom-color: var(--rule);
  padding: 18px 56px;
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  max-width: 1400px;
  margin: 0 auto;
}

.wordmark { display: flex; align-items: baseline; gap: 12px; color: #fff; transition: color var(--ease); }
#navbar.scrolled .wordmark { color: var(--ink); }
/* 墨のロゴは黒。写真の上では反転して白く見せ、紙地では素のまま */
.wordmark-img {
  width: auto; height: 50px;
  filter: invert(1);
  transition: height var(--ease);
}
#navbar.scrolled .wordmark-img { height: 40px; }
.wordmark-ja { font-family: var(--ja-dp); font-size: 0.78rem; letter-spacing: 0.28em; opacity: 0.7; }

.nav-links { display: flex; gap: 30px; }
.nav-links a {
  font-family: var(--sans);
  font-size: 0.62rem;
  font-weight: 400;
  letter-spacing: 0.26em;          /* generous tracking, uppercase labels */
  text-transform: uppercase;
  color: rgba(255,255,255,0.8);
  transition: opacity var(--ease), color var(--ease);
}
#navbar.scrolled .nav-links a { color: var(--ink-mid); }
.nav-links a:hover { opacity: 0.5; }

.hamburger { display: none; flex-direction: column; gap: 7px; padding: 4px; }
.hamburger span { display: block; width: 24px; height: 1px; background: #fff; transition: var(--ease); }
#navbar.scrolled .hamburger span { background: var(--ink); }
.hamburger.open span:nth-child(1) { transform: translateY(4px) rotate(45deg); }
.hamburger.open span:nth-child(2) { transform: translateY(-4px) rotate(-45deg); }

/* ==========================================================
   HOME
   ========================================================== */
#home {
  position: relative;
  height: 100svh;
  min-height: 560px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: var(--ink);
}
.hero-slides { position: absolute; inset: 0; }
.hero-slide {
  position: absolute; inset: 0;
  background-size: cover; background-position: center;
  opacity: 0; transition: opacity 2.4s ease;
}
.hero-slide.active { opacity: 1; }
.hero-veil {
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(0,0,0,0.30) 0%, rgba(0,0,0,0.36) 60%, rgba(0,0,0,0.52) 100%);
}
.hero-inner { position: relative; text-align: center; color: #fff; padding: 0 24px; }
.hero-kicker {
  font-family: var(--en);
  font-size: 0.8rem;
  letter-spacing: 0.46em;
  text-indent: 0.46em;
  text-transform: uppercase;
  opacity: 0.85;
  margin-bottom: 32px;
}
.hero-title { display: flex; justify-content: center; }
.hero-mark {
  width: auto;
  height: clamp(140px, 22vw, 230px);
  filter: invert(1);
  opacity: 0.94;
}
.hero-sub {
  margin-top: 36px;
  font-size: 0.78rem;
  letter-spacing: 0.24em;
  opacity: 0.76;
}
.hero-scroll {
  position: absolute; bottom: 36px; left: 50%; transform: translateX(-50%);
  font-family: var(--en); font-size: 0.66rem; letter-spacing: 0.34em;
  color: rgba(255,255,255,0.58);
}

/* ==========================================================
   SECTIONS — large margins, generous negative space
   ========================================================== */
section { padding: 170px 0; }
#concept { padding-top: 150px; }

.sec-head { margin-bottom: 84px; }
.sec-head-sm { margin-bottom: 56px; }
.sec-no {
  font-family: var(--en);
  font-size: 0.78rem;
  letter-spacing: 0.3em;
  color: var(--brass);
  margin-bottom: 22px;
}
.sec-en {
  font-family: var(--en);              /* 英文の表題は Cormorant Garamond */
  font-weight: 300;
  font-size: clamp(1.15rem, 2.4vw, 1.5rem);
  letter-spacing: 0.44em;              /* G A L L E R Y */
  text-indent: 0.44em;
  text-transform: uppercase;
  color: var(--ink);
  line-height: 1.6;
}

/* ---------- Concept（非対称レイアウト） ---------- */
.lede {
  font-family: var(--ja-dp);
  font-size: clamp(1.1rem, 2.4vw, 1.4rem);
  letter-spacing: 0.1em;
  line-height: 2.2;
  max-width: 22em;
  margin-bottom: 90px;
}
.concept-layout {
  display: grid;
  grid-template-columns: 6fr 5fr;
  gap: 0 90px;
  align-items: start;
}
.concept-text { max-width: 32em; }
.concept-text p { margin-bottom: 30px; color: var(--ink-mid); }
.concept-text p:last-child { margin-bottom: 0; }
/* 概要（一覧で用途と条件を把握できるように） */
.glance {
  margin: 8px 0 36px;
  border-top: 1px solid var(--rule);
}
.glance-row {
  display: grid;
  grid-template-columns: 6.5em 1fr;
  gap: 20px;
  padding: 15px 0;
  border-bottom: 1px solid var(--rule);
}
.glance-row dt {
  font-family: var(--sans);
  font-size: 0.64rem;
  letter-spacing: 0.16em;
  color: var(--ink-soft);
  padding-top: 5px;
}
.glance-row dd {
  font-size: 0.86rem;
  line-height: 2;
  color: var(--ink);
}
.glance-item { display: block; }
.concept-fig { margin-top: 90px; }   /* 意図的な段差 */
.concept-fig figcaption {
  margin-top: 16px;
  font-family: var(--sans);
  font-size: 0.64rem;
  letter-spacing: 0.14em;
  color: var(--ink-soft);
}

/* ---------- Gallery ---------- */
.gallery-grid {
  column-count: 3;
  column-gap: 28px;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 56px;
}
.g-item {
  break-inside: avoid;
  margin-bottom: 28px;
  cursor: pointer;
  transition: opacity var(--ease);
}
.g-item:hover { opacity: 0.74; }

.lightbox {
  display: none;
  position: fixed; inset: 0;
  background: rgba(10,9,8,0.97);
  z-index: 9999;
  align-items: center; justify-content: center;
}
.lightbox.open { display: flex; }
.lightbox img { max-width: 88vw; max-height: 86vh; width: auto; object-fit: contain; }
.lb-close {
  position: absolute; top: 30px; right: 36px;
  font-family: var(--sans); font-size: 0.62rem;
  letter-spacing: 0.26em; text-transform: uppercase;
  color: rgba(255,255,255,0.7); transition: opacity var(--ease);
}
.lb-prev, .lb-next {
  position: absolute; top: 50%; transform: translateY(-50%);
  font-size: 1.3rem; color: rgba(255,255,255,0.52);
  padding: 26px; transition: opacity var(--ease);
}
.lb-prev { left: 20px; }
.lb-next { right: 20px; }
.lb-close:hover, .lb-prev:hover, .lb-next:hover { opacity: 0.55; }

/* ---------- Facility ---------- */
.spec-list { border-top: 1px solid var(--rule); }
.spec-row {
  display: grid;
  grid-template-columns: 96px 1fr;
  gap: 32px;
  padding: 46px 0;
  border-bottom: 1px solid var(--rule);
}
.spec-no {
  font-family: var(--en);
  font-size: 0.88rem;
  letter-spacing: 0.24em;
  color: var(--brass);
  padding-top: 8px;
}
.spec-body h3 {
  font-family: var(--ja-dp);
  font-size: 1.1rem;
  letter-spacing: 0.16em;
  margin-bottom: 18px;
  display: flex; align-items: baseline; gap: 20px; flex-wrap: wrap;
}
.spec-en {
  font-family: var(--sans);
  font-size: 0.58rem;
  font-weight: 400;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.spec-body p { color: var(--ink-mid); max-width: 34em; }

/* 大きな写真を余白の中に置く（非対称） */
/* 施設欄の写真：同寸の2枚を本文の左端に揃えて控えめに */
.plate-set {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 320px));
  gap: 24px;
  max-width: 1120px;
  margin: 72px auto 0;
  padding: 0 56px;
}
.plate img { aspect-ratio: 4 / 5; object-fit: cover; }

/* ---------- Pricing ---------- */
.rate-list { border-top: 1px solid var(--rule); max-width: 560px; }
.rate-row {
  display: flex; align-items: baseline; justify-content: space-between;
  gap: 24px; padding: 30px 0;
  border-bottom: 1px solid var(--rule);
}
.rate-term { font-size: 0.9rem; letter-spacing: 0.1em; color: var(--ink-mid); }
.rate-val { font-size: 0.8rem; white-space: nowrap; }
.rate-val em {
  font-family: var(--en); font-style: normal;
  font-size: 1.85rem; font-weight: 300; margin-right: 3px;
}
.rate-unit { color: var(--ink-soft); font-size: 0.7rem; margin-left: 10px; }
.rate-note { margin-top: 30px; max-width: 32em; font-size: 0.82rem; color: var(--ink-soft); }
.rate-note + .rate-note { margin-top: 10px; }

/* ---------- Access ---------- */
.info { border-top: 1px solid var(--rule); }
.info-row {
  display: grid; grid-template-columns: 130px 1fr;
  gap: 26px; padding: 28px 0;
  border-bottom: 1px solid var(--rule);
}
.info-row dt {
  font-family: var(--sans);
  font-size: 0.64rem; font-weight: 400;
  letter-spacing: 0.22em;
  color: var(--ink-soft);
  padding-top: 6px;
}
.info-row dd { font-size: 0.88rem; color: var(--ink-mid); }
.inline-link { border-bottom: 1px solid var(--rule); padding-bottom: 2px; transition: border-color var(--ease); }
.inline-link:hover { border-bottom-color: var(--ink); }
.map-link {
  display: table; margin-top: 14px; color: var(--ink);
  font-family: var(--sans); font-size: 0.66rem;
  letter-spacing: 0.18em;
  border-bottom: 1px solid var(--ink); padding-bottom: 3px;
  transition: opacity var(--ease);
}
.map-link:hover { opacity: 0.5; }
.map-link-only { margin-top: 4px; }
.grp {
  display: block;
  font-family: var(--sans);
  font-size: 0.58rem; letter-spacing: 0.28em;
  color: var(--ink-soft);
  margin: 18px 0 8px;
}
.grp:first-child { margin-top: 0; }
.note-quiet { margin-top: 32px; font-size: 0.78rem; color: var(--ink-soft); }

/* ---------- Reservation（明確だが主張しすぎない） ---------- */
#reservation { background: var(--paper-sub); padding: 130px 0; }
.res-lede { max-width: 34em; font-size: 0.85rem; color: var(--ink-mid); margin-bottom: 56px; }

.line-cta { margin-top: 8px; }
.line-cta a {
  display: inline-block;
  font-family: var(--sans);
  font-size: 0.7rem;
  letter-spacing: 0.24em;
  color: var(--ink);
  border: 1px solid var(--ink);
  border-radius: 0;
  padding: 18px 56px;
  transition: background var(--ease), color var(--ease);
}
.line-cta a:hover { background: var(--ink); color: var(--paper); }
.privacy { margin-top: 52px; max-width: 40em; font-size: 0.73rem; line-height: 2.1; color: var(--ink-soft); }

/* ==========================================================
   FOOTER
   ========================================================== */
footer { border-top: 1px solid var(--rule); padding: 84px 0 72px; }
.foot-inner { text-align: center; }
.foot-mark { display: flex; flex-direction: column; align-items: center; gap: 16px; margin-bottom: 28px; }
.foot-img { width: auto; height: 72px; opacity: 0.9; filter: invert(1); }
.foot-ja { font-family: var(--ja-dp); font-size: 0.76rem; letter-spacing: 0.28em; color: var(--ink-soft); }
.foot-meta { font-size: 0.73rem; color: var(--ink-soft); line-height: 2; }
.foot-sns {
  display: flex;
  justify-content: center;
  gap: 32px;
  margin-top: 26px;
}
.foot-sns a {
  font-family: var(--sans);
  font-size: 0.6rem;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--ink-mid);
  border-bottom: 1px solid var(--rule);
  padding-bottom: 3px;
  transition: border-color var(--ease), color var(--ease);
}
.foot-sns a:hover { color: var(--ink); border-bottom-color: var(--ink); }
.foot-copy {
  margin-top: 28px;
  font-family: var(--sans);
  font-size: 0.58rem; letter-spacing: 0.24em;
  color: var(--ink-soft);
}

/* ==========================================================
   RESPONSIVE
   ========================================================== */
@media (max-width: 1000px) {
  .gallery-grid { column-count: 2; }
  .concept-layout { grid-template-columns: 1fr; gap: 0; }
  .concept-fig { margin-top: 56px; max-width: 560px; }
}

@media (max-width: 720px) {
  body { font-size: 14px; line-height: 2.15; }
  .wrap { padding: 0 24px; }
  #navbar { padding: 18px 24px; }
  #navbar.scrolled { padding: 14px 24px; }

  .nav-links {
    display: none;
    position: absolute; top: 100%; left: 0; right: 0;
    background: var(--paper);
    border-bottom: 1px solid var(--rule);
    flex-direction: column; gap: 22px;
    padding: 30px 24px 36px;
  }
  .nav-links.open { display: flex; }
  .nav-links a { color: var(--ink-mid); }
  .hamburger { display: flex; }

  section { padding: 96px 0; }
  #concept { padding-top: 96px; }
  #reservation { padding: 96px 0; }
  .sec-head { margin-bottom: 52px; }
  .lede { margin-bottom: 52px; }

  .gallery-grid { padding: 0 24px; column-gap: 16px; }
  .g-item { margin-bottom: 16px; }

  .spec-row { grid-template-columns: 1fr; gap: 14px; padding: 36px 0; }
  .spec-no { padding-top: 0; }

  .plate-set { margin-top: 52px; padding: 0 24px; gap: 12px; grid-template-columns: repeat(2, minmax(0, 1fr)); }

  .info-row { grid-template-columns: 1fr; gap: 10px; padding: 24px 0; }
  .info-row dt { padding-top: 0; }

  .line-cta a { display: block; text-align: center; padding: 18px 0; }

}