@import url('https://fonts.googleapis.com/css2?family=Shippori+Mincho+B1:wght@400;500;600;700&family=Noto+Sans+JP:wght@300;400;500&display=swap');

:root{
  --sumi:#141210;
  --kinari:#f6f2ea;
  --shiro:#fbf9f5;
  --gold:#b69a63;
  --gold-soft:rgba(182,154,99,0.35);
  --ease:cubic-bezier(.16,.84,.44,1);
}

*,*::before,*::after{ box-sizing:border-box; }

html{ scroll-behavior:smooth; }

body{
  margin:0;
  background:var(--kinari);
  color:var(--sumi);
  font-family:'Noto Sans JP', sans-serif;
  font-weight:300;
  line-height:2;
  letter-spacing:.04em;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

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

a{ color:inherit; text-decoration:none; }

h1,h2,h3{
  font-family:'Shippori Mincho B1', serif;
  font-weight:600;
  letter-spacing:.08em;
  margin:0;
}

.container{
  max-width:1080px;
  margin:0 auto;
  padding:0 6vw;
}

/* ---------- Section fade-in ---------- */
.reveal{
  opacity:0;
  transform:translateY(28px);
  transition:opacity 1.4s var(--ease), transform 1.4s var(--ease);
}
.reveal.is-visible{
  opacity:1;
  transform:translateY(0);
}
@media (prefers-reduced-motion: reduce){
  .reveal{
    opacity:1;
    transform:none;
    transition:none;
  }
}

/* ---------- Heading / copy line-break control ---------- */
.hero-brand,
.hero-copy,
.section-title,
.portal-heading h1,
.site-header .brand{
  word-break:keep-all;
  overflow-wrap:anywhere;
}

/* ---------- Header (portal / sub pages) ---------- */
.site-header{
  position:absolute;
  top:0; left:0; right:0;
  z-index:20;
  padding:2.4rem 6vw;
  display:flex;
  justify-content:space-between;
  align-items:center;
}
.site-header .brand{
  font-family:'Shippori Mincho B1', serif;
  font-size:1.1rem;
  color:var(--shiro);
  letter-spacing:.3em;
}
.site-header nav a{
  color:var(--shiro);
  font-size:.78rem;
  letter-spacing:.15em;
  opacity:.75;
  border-bottom:1px solid transparent;
  padding-bottom:2px;
  transition:opacity .5s, border-color .5s;
}
.site-header nav a:hover{ opacity:1; border-color:var(--gold-soft); }

/* ---------- Hero ---------- */
.hero{
  position:relative;
  min-height:100vh;
  min-height:100dvh;
  background:var(--sumi);
  color:var(--kinari);
  display:flex;
  align-items:center;
  justify-content:center;
  text-align:center;
  overflow:hidden;
}
.hero-glow{
  position:absolute;
  inset:-20%;
  background:
    radial-gradient(ellipse 60% 45% at 30% 25%, rgba(182,154,99,.16), transparent 60%),
    radial-gradient(ellipse 50% 40% at 75% 70%, rgba(182,154,99,.10), transparent 65%);
  animation:driftGlow 26s ease-in-out infinite alternate;
  pointer-events:none;
}
@keyframes driftGlow{
  0%{ transform:translate(-2%,-1%) scale(1); }
  100%{ transform:translate(3%,2%) scale(1.08); }
}
.hero-texture{
  position:absolute;
  inset:0;
  opacity:.5;
  mix-blend-mode:overlay;
  pointer-events:none;
}
.hero-inner{
  position:relative;
  z-index:2;
  padding:0 6vw;
}
.hero-eyebrow{
  font-size:.72rem;
  letter-spacing:.5em;
  color:var(--gold);
  margin-bottom:2rem;
  opacity:.85;
}
.hero-brand{
  font-size:clamp(3.6rem, 12vw, 8rem);
  line-height:1.1;
  color:var(--shiro);
}
.hero-copy{
  margin-top:2.2rem;
  font-family:'Shippori Mincho B1', serif;
  font-weight:500;
  font-size:clamp(1.05rem, 2.4vw, 1.5rem);
  letter-spacing:.25em;
  color:var(--kinari);
  opacity:.9;
}
.hero-cta{
  margin-top:3.6rem;
  display:inline-flex;
}
.hero-scroll{
  position:absolute;
  bottom:2.6rem;
  left:50%;
  transform:translateX(-50%);
  width:1px;
  height:64px;
  background:linear-gradient(var(--gold), transparent);
  opacity:.6;
}
.hero-scroll::after{
  content:'';
  position:absolute;
  left:50%;
  top:0;
  width:5px; height:5px;
  margin-left:-2px;
  border-radius:50%;
  background:var(--gold);
  animation:scrollDot 2.6s ease-in-out infinite;
}
@keyframes scrollDot{
  0%{ top:0; opacity:0; }
  15%{ opacity:1; }
  85%{ opacity:1; }
  100%{ top:64px; opacity:0; }
}

/* ---------- Buttons ---------- */
.btn{
  position:relative;
  display:inline-block;
  padding:1.05rem 3rem;
  font-size:.82rem;
  letter-spacing:.3em;
  border:1px solid var(--gold);
  color:var(--kinari);
  background:transparent;
  transition:background .6s var(--ease), color .6s var(--ease);
}
.btn:hover{ background:var(--gold); color:var(--sumi); }
.btn-dark{
  border-color:var(--sumi);
  color:var(--sumi);
}
.btn-dark:hover{ background:var(--sumi); color:var(--kinari); }
.btn-row{
  display:flex;
  flex-wrap:wrap;
  gap:1.1rem;
  justify-content:center;
}

/* ---------- Section shell ---------- */
section{
  padding:min(14vw,9rem) 0;
}
.section-label{
  font-size:.72rem;
  letter-spacing:.5em;
  color:var(--gold);
  margin-bottom:1.6rem;
  display:block;
}
.section-title{
  font-size:clamp(1.8rem, 4vw, 2.6rem);
  margin-bottom:2.2rem;
}
.section-lead{
  max-width:640px;
}
.center{ text-align:center; margin-left:auto; margin-right:auto; }

/* ---------- Concept ---------- */
.concept{ background:var(--kinari); }
.concept-text{
  font-size:1.05rem;
  font-weight:300;
  line-height:2.3;
  max-width:620px;
  margin:0 auto;
}

/* ---------- Vertical accent ---------- */
.vertical-accent{
  writing-mode:vertical-rl;
  text-orientation:upright;
  font-family:'Shippori Mincho B1', serif;
  letter-spacing:.5em;
  font-size:1rem;
  color:var(--gold);
  opacity:.8;
  height:9em;
  margin:0 auto;
}

/* ---------- Menu cards ---------- */
.menu{ background:var(--shiro); }
.card-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:2.2rem;
  margin-top:3rem;
}
.card{
  background:var(--sumi);
  color:var(--kinari);
  padding:3rem 2rem;
  display:flex;
  flex-direction:column;
  gap:1.2rem;
  border:1px solid rgba(182,154,99,.25);
}
.card-index{
  font-family:'Shippori Mincho B1', serif;
  color:var(--gold);
  font-size:.85rem;
  letter-spacing:.3em;
}
.card h3{ font-size:1.35rem; }
.card p{
  font-size:.9rem;
  line-height:1.9;
  opacity:.82;
  flex-grow:1;
}
.card-price{
  font-family:'Shippori Mincho B1', serif;
  font-size:1.1rem;
  color:var(--gold);
  border-top:1px solid rgba(182,154,99,.25);
  padding-top:1.2rem;
}

/* ---------- Texture blocks (space) ---------- */
.space{ background:var(--kinari); }
.texture-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:1.6rem;
  margin-top:3rem;
}
.texture-block{
  position:relative;
  aspect-ratio:4/5;
  overflow:hidden;
  background:var(--sumi);
}
.texture-block svg{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
}
.texture-caption{
  position:absolute;
  left:0; right:0; bottom:0;
  padding:1.4rem;
  color:var(--kinari);
  font-size:.85rem;
  letter-spacing:.1em;
  background:linear-gradient(transparent, rgba(0,0,0,.55));
}
.photo-note{
  position:absolute;
  top:1rem;
  right:1rem;
  font-size:.62rem;
  letter-spacing:.1em;
  color:var(--gold);
  opacity:.75;
  border:1px solid var(--gold-soft);
  padding:.25rem .6rem;
}

/* ---------- Flow ---------- */
.flow{ background:var(--sumi); color:var(--kinari); }
.flow .section-label{ color:var(--gold); }
.flow-list{
  list-style:none;
  margin:3rem 0 0;
  padding:0;
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:2rem;
}
.flow-list li{
  border-top:1px solid rgba(182,154,99,.4);
  padding-top:1.6rem;
}
.flow-num{
  font-family:'Shippori Mincho B1', serif;
  color:var(--gold);
  font-size:1.6rem;
  display:block;
  margin-bottom:1rem;
}
.flow-list h3{ font-size:1.05rem; margin-bottom:.6rem; color:var(--kinari); }
.flow-list p{ font-size:.85rem; opacity:.75; line-height:1.8; }

/* ---------- Info table ---------- */
.info{ background:var(--kinari); }
.info-table{
  margin-top:2.6rem;
  border-top:1px solid rgba(20,18,16,.15);
}
.info-row{
  display:grid;
  grid-template-columns:160px 1fr;
  gap:1.5rem;
  padding:1.5rem 0;
  border-bottom:1px solid rgba(20,18,16,.15);
}
.info-row dt{
  font-family:'Shippori Mincho B1', serif;
  font-size:.9rem;
  letter-spacing:.15em;
  color:var(--gold);
}
.info-row dd{
  margin:0;
  font-size:.92rem;
  opacity:.85;
}
.info-note{
  margin-top:1.4rem;
  font-size:.78rem;
  opacity:.6;
  letter-spacing:.05em;
}

/* ---------- Reservation ---------- */
.reserve{
  background:var(--sumi);
  color:var(--kinari);
  text-align:center;
}
.reserve .section-lead{ margin:0 auto 3rem; opacity:.8; }

/* ---------- Footer ---------- */
footer{
  background:var(--sumi);
  color:var(--kinari);
  padding:3rem 6vw 2.4rem;
  text-align:center;
}
.footer-brand{
  font-family:'Shippori Mincho B1', serif;
  letter-spacing:.3em;
  font-size:1rem;
  margin-bottom:.8rem;
}
.footer-meta{
  font-size:.75rem;
  opacity:.55;
  letter-spacing:.05em;
}
.footer-portal{
  display:inline-block;
  margin-top:1.6rem;
  font-size:.68rem;
  letter-spacing:.15em;
  opacity:.45;
  border-bottom:1px solid transparent;
}
.footer-portal:hover{ opacity:.8; border-color:var(--gold-soft); }

/* ================= Portal page ================= */
.portal-body{
  background:var(--sumi);
  color:var(--kinari);
  min-height:100vh;
  min-height:100dvh;
  display:flex;
  flex-direction:column;
}
.portal-main{
  flex:1;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  padding:9rem 6vw 4rem;
  position:relative;
  overflow:hidden;
}
.portal-heading{
  text-align:center;
  margin-bottom:3.4rem;
  position:relative;
  z-index:2;
}
.portal-heading .section-label{ justify-content:center; display:block; }
.portal-heading h1{
  font-size:clamp(2rem,5vw,2.8rem);
  color:var(--shiro);
}
.portal-grid{
  position:relative;
  z-index:2;
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:1.8rem;
  width:100%;
  max-width:1080px;
}
.portal-card{
  display:flex;
  flex-direction:column;
  gap:1rem;
  padding:2.6rem 2rem;
  background:rgba(246,242,234,.03);
  border:1px solid rgba(182,154,99,.3);
  transition:border-color .5s, background .5s, transform .5s var(--ease);
  min-height:220px;
}
.portal-card:hover{
  border-color:var(--gold);
  background:rgba(182,154,99,.08);
  transform:translateY(-4px);
}
.portal-card-index{
  color:var(--gold);
  font-family:'Shippori Mincho B1', serif;
  font-size:.8rem;
  letter-spacing:.3em;
}
.portal-card h2{ font-size:1.25rem; color:var(--shiro); }
.portal-card p{
  font-size:.85rem;
  opacity:.7;
  line-height:1.85;
  flex-grow:1;
}
.portal-card-cta{
  font-size:.72rem;
  letter-spacing:.2em;
  color:var(--gold);
  opacity:.9;
}
.portal-card.is-disabled{
  opacity:.4;
  cursor:not-allowed;
}
.portal-card.is-disabled:hover{
  transform:none;
  border-color:rgba(182,154,99,.3);
  background:rgba(246,242,234,.03);
}
.portal-back{
  margin-top:3.6rem;
  font-size:.75rem;
  letter-spacing:.15em;
  opacity:.55;
  border-bottom:1px solid transparent;
  position:relative;
  z-index:2;
}
.portal-back:hover{ opacity:.9; border-color:var(--gold-soft); }

/* ---------- Responsive ---------- */
@media (max-width:900px){
  .card-grid{ grid-template-columns:1fr; }
  .texture-grid{ grid-template-columns:1fr; }
  .flow-list{ grid-template-columns:repeat(2,1fr); }
  .portal-grid{ grid-template-columns:1fr; }
  .info-row{ grid-template-columns:1fr; gap:.4rem; }
}
@media (max-width:560px){
  .flow-list{ grid-template-columns:1fr; }
  .site-header{ padding:1.6rem 6vw; }
  section{ padding:4.5rem 0; }
  .hero-cta .btn-row{ flex-direction:column; }
  .btn-row{ flex-direction:column; align-items:stretch; }
  .btn{ text-align:center; }
}