/* =========================================================
   すき焼き割烹 肉十番  NIKU-JUBAN  Official Website
   ========================================================= */

:root{
  --ink:#1c1714;
  --ink-soft:#5b5148;
  --line:#e4dccd;
  --paper:#ffffff;
  --washi:#f7f2e8;
  --washi-deep:#efe7d5;
  --sumi:#211b18;
  --sumi-deep:#171210;
  --beni:#8f2019;
  --beni-deep:#6f1712;
  --gold:#b28a45;
  --gold-soft:#c9a86e;
  --gold-light:#d8c199;
  --shadow:0 24px 64px -30px rgba(23,18,16,.46);
  --ease:cubic-bezier(.22,.61,.36,1);
  --maxw:1180px;
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}

html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}

body{
  font-family:"Noto Sans JP",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  color:var(--ink);
  background:var(--paper);
  line-height:1.95;
  font-size:15px;
  letter-spacing:.02em;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}

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

/* ---------- Layout helpers ---------- */
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 clamp(20px,5vw,48px)}
.section{padding:clamp(72px,11vw,140px) 0}
.section--washi{background:var(--washi)}
.section--sumi{background:var(--sumi);color:#efe7da}

.eyebrow{
  font-family:"Cormorant Garamond",serif;
  font-size:.82rem;
  letter-spacing:.42em;
  text-transform:uppercase;
  color:var(--beni);
  display:flex;align-items:center;gap:.9em;
  font-weight:600;
}
.eyebrow::before{content:"";width:34px;height:1px;background:var(--gold)}
.section--sumi .eyebrow{color:var(--gold-light)}
.section--sumi .eyebrow::before{background:var(--gold-light)}

.head{
  font-family:"Noto Serif JP",serif;
  font-weight:600;
  line-height:1.5;
  font-size:clamp(1.6rem,3.6vw,2.5rem);
  margin:.55em 0 .2em;
  letter-spacing:.04em;
}
.head .en{
  display:block;
  font-family:"Cormorant Garamond",serif;
  font-style:italic;
  font-weight:500;
  letter-spacing:.06em;
  color:var(--beni);
  font-size:clamp(1rem,2vw,1.35rem);
  margin-top:.5em;
}
.section--sumi .head .en{color:var(--gold-light)}

.lead{
  max-width:42em;color:var(--ink-soft);
  font-size:clamp(.95rem,1.4vw,1.02rem);
}
.section--sumi .lead{color:#d7ccbc}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:.8em;
  font-family:"Cormorant Garamond",serif;
  font-size:1.02rem;font-weight:600;letter-spacing:.16em;
  text-transform:uppercase;
  padding:1.05em 2.4em;
  border:1px solid var(--beni-deep);
  background:var(--beni-deep);color:#fff;
  transition:.45s var(--ease);
  position:relative;overflow:hidden;border-radius:2px;
}
.btn span{position:relative;z-index:1;transition:.45s var(--ease)}
.btn::after{
  content:"";position:absolute;inset:0;background:var(--gold);
  transform:translateY(101%);transition:.45s var(--ease);
}
.btn:hover::after{transform:translateY(0)}
.btn:hover{border-color:var(--gold);color:var(--sumi-deep)}
.btn--light{background:transparent;color:#fff;border-color:rgba(255,255,255,.55)}

.arrow-link{
  display:inline-flex;align-items:center;gap:.7em;
  font-family:"Cormorant Garamond",serif;letter-spacing:.14em;
  text-transform:uppercase;font-weight:600;font-size:.95rem;
  color:var(--beni);
}
.arrow-link .l{width:38px;height:1px;background:currentColor;transition:.4s var(--ease)}
.arrow-link:hover .l{width:58px}
.section--sumi .arrow-link{color:var(--gold-light)}

/* ---------- Header ---------- */
.site-header{
  position:fixed;top:0;left:0;width:100%;z-index:100;
  padding:20px 0;
  transition:background .45s var(--ease),padding .45s var(--ease),box-shadow .45s var(--ease);
}
.site-header.scrolled{
  background:rgba(23,18,16,.92);
  backdrop-filter:blur(10px);
  padding:10px 0;
  box-shadow:0 1px 0 rgba(255,255,255,.06);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{display:flex;align-items:center;gap:13px;line-height:1.2}
.brand-mark{
  width:50px;height:50px;flex:none;display:grid;place-items:center;
  border:1px solid rgba(255,255,255,.5);border-radius:50%;
  font-family:"Noto Serif JP",serif;font-weight:600;font-size:1.1rem;
  color:#fff;transition:.45s var(--ease);letter-spacing:0;
}
.scrolled .brand-mark{border-color:var(--gold)}
.brand-txt{color:#fff;transition:color .45s var(--ease)}
.brand-txt b{
  display:block;font-family:"Noto Serif JP",serif;
  font-weight:600;letter-spacing:.16em;font-size:1rem;
}
.brand-txt small{
  font-family:"Cormorant Garamond",serif;
  font-size:.66rem;letter-spacing:.28em;opacity:.82;text-transform:uppercase;
}

.nav{display:flex;align-items:center;gap:clamp(16px,2.2vw,32px)}
.nav a{
  position:relative;font-size:.8rem;letter-spacing:.1em;font-weight:500;
  color:#fff;transition:color .45s var(--ease);padding:6px 0;
}
.nav a::after{
  content:"";position:absolute;left:0;bottom:0;width:0;height:1px;
  background:var(--gold);transition:width .4s var(--ease);
}
.nav a:hover::after{width:100%}
.nav .nav-cta{
  border:1px solid rgba(255,255,255,.55);padding:.7em 1.4em;letter-spacing:.14em;
  font-family:"Cormorant Garamond",serif;text-transform:uppercase;font-weight:600;border-radius:2px;
}
.nav .nav-cta::after{display:none}
.nav .nav-cta:hover{background:var(--gold);border-color:var(--gold);color:var(--sumi-deep)}

.burger{display:none;flex-direction:column;gap:6px;background:none;border:0;cursor:pointer;padding:8px;z-index:110}
.burger span{width:26px;height:2px;background:#fff;transition:.35s var(--ease)}
.menu-open .burger span{background:var(--ink)}
.menu-open .burger span:nth-child(1){transform:translateY(8px) rotate(45deg)}
.menu-open .burger span:nth-child(2){opacity:0}
.menu-open .burger span:nth-child(3){transform:translateY(-8px) rotate(-45deg)}

/* ---------- Hero ---------- */
.hero{
  position:relative;min-height:100svh;display:flex;align-items:flex-end;
  color:#fff;overflow:hidden;background:var(--sumi-deep);
}
.hero-bg{position:absolute;inset:0;z-index:0}
.hero-bg img{width:100%;height:100%;object-fit:cover;transform:scale(1.08);animation:heroZoom 14s var(--ease) forwards}
@keyframes heroZoom{to{transform:scale(1)}}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(15,11,9,.58) 0%,rgba(15,11,9,.15) 32%,rgba(15,11,9,.82) 100%);
}
.hero-inner{position:relative;z-index:1;width:100%;padding-bottom:clamp(60px,10vw,120px);padding-top:160px}
.hero .eyebrow{color:var(--gold-light)}
.hero .eyebrow::before{background:var(--gold-light)}
.hero h1{
  font-family:"Noto Serif JP",serif;
  font-weight:600;
  font-size:clamp(2.1rem,5.6vw,4.1rem);
  line-height:1.25;
  letter-spacing:.08em;
  margin:.35em 0 .3em;
  text-shadow:0 4px 40px rgba(0,0,0,.4);
}
.hero h1 .jp{
  display:block;font-family:"Noto Serif JP",serif;font-weight:500;
  font-size:clamp(1rem,2.3vw,1.5rem);letter-spacing:.12em;margin-top:.7em;color:#f1e8da;
}
.hero p.tag{max-width:33em;color:#e9e0d1;font-size:clamp(.95rem,1.5vw,1.08rem)}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:2.2em}

.scroll-cue{
  position:absolute;bottom:26px;left:50%;transform:translateX(-50%);z-index:1;
  writing-mode:vertical-rl;font-family:"Cormorant Garamond",serif;letter-spacing:.3em;
  font-size:.72rem;text-transform:uppercase;color:rgba(255,255,255,.75);
  display:flex;align-items:center;gap:14px;
}
.scroll-cue::after{content:"";width:1px;height:60px;background:rgba(255,255,255,.5);animation:cue 2s var(--ease) infinite}
@keyframes cue{0%{transform:scaleY(0);transform-origin:top}45%{transform:scaleY(1);transform-origin:top}55%{transform:scaleY(1);transform-origin:bottom}100%{transform:scaleY(0);transform-origin:bottom}}

/* ---------- Intro ---------- */
.intro-grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(40px,7vw,110px);align-items:center}
.intro-copy .head{margin-top:.4em}
.intro-copy p+p{margin-top:1.3em}
.intro-figure{position:relative}
.intro-figure img{width:100%;aspect-ratio:4/5;object-fit:cover;box-shadow:var(--shadow);border-radius:3px}
.intro-figure .cap{
  position:absolute;left:-26px;bottom:32px;background:var(--paper);
  padding:20px 26px;box-shadow:var(--shadow);max-width:250px;border-radius:3px;
  border-top:3px solid var(--beni);
}
.intro-figure .cap b{font-family:"Noto Serif JP",serif;font-size:1.3rem;color:var(--beni);display:block;line-height:1.4}
.intro-figure .cap span{font-size:.78rem;letter-spacing:.06em;color:var(--ink-soft)}

/* ---------- Point cards ---------- */
.points{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(18px,3vw,32px);margin-top:clamp(44px,6vw,72px)}
.point{background:var(--paper);border:1px solid var(--line);padding:clamp(26px,3.4vw,40px);border-radius:3px}
.point .n{font-family:"Cormorant Garamond",serif;font-style:italic;font-size:2.2rem;color:var(--gold);line-height:1}
.point h3{font-family:"Noto Serif JP",serif;font-weight:600;font-size:1.15rem;margin:.5em 0 .4em;letter-spacing:.03em}
.point p{color:var(--ink-soft);font-size:.9rem}

/* ---------- Menu ---------- */
.menu-note{
  display:inline-block;margin-top:1.6em;font-size:.82rem;letter-spacing:.04em;
  color:var(--beni-deep);background:#f7ebe9;border:1px solid #e6c9c4;
  padding:.7em 1.3em;border-radius:2px;
}
.menu-cat{
  margin:clamp(40px,6vw,64px) 0 clamp(20px,3vw,28px);
  display:flex;align-items:baseline;gap:1em;
}
.menu-cat h3{
  font-family:"Noto Serif JP",serif;font-weight:600;font-size:1.2rem;letter-spacing:.06em;
}
.menu-cat span{font-family:"Cormorant Garamond",serif;font-style:italic;color:var(--gold);font-size:.95rem;letter-spacing:.04em}
.menu-cat::after{content:"";flex:1;height:1px;background:var(--line)}

.menu-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(20px,3vw,34px);
}
.dish{background:var(--paper);border:1px solid var(--line);border-radius:3px;overflow:hidden;display:flex;flex-direction:column;transition:box-shadow .4s var(--ease),transform .4s var(--ease)}
.dish:hover{box-shadow:var(--shadow);transform:translateY(-4px)}
.dish-media{overflow:hidden;aspect-ratio:3/2;background:var(--washi)}
.dish-media img{width:100%;height:100%;object-fit:cover;transition:transform 1s var(--ease)}
.dish:hover .dish-media img{transform:scale(1.06)}
.dish-body{padding:20px 20px 22px;display:flex;flex-direction:column;gap:.5em;flex:1}
.dish .id{font-family:"Cormorant Garamond",serif;letter-spacing:.12em;font-size:.78rem;color:var(--gold)}
.dish h3{font-family:"Noto Serif JP",serif;font-weight:600;font-size:1.02rem;letter-spacing:.02em;line-height:1.55}
.dish .price{margin-top:auto;font-weight:700;color:var(--ink);font-size:1.02rem}
.dish .price small{font-weight:400;font-size:.72rem;color:var(--ink-soft);margin-left:.4em}
.dish .item_detail_info{margin-top:.7em}
.dish .item_detail_number{font-size:.8rem;color:var(--ink-soft);display:flex;align-items:center;gap:.5em;margin:0 0 .6em}
.dish .item_detail_number button{width:26px;height:26px;border:1px solid var(--line);background:var(--washi);cursor:pointer;border-radius:2px}
.dish .item-num{width:44px;padding:.3em;border:1px solid var(--line);border-radius:2px;text-align:center}
.dish .insert_cart img{display:inline-block}

/* ---------- Flow ---------- */
.flow{display:grid;grid-template-columns:repeat(2,1fr);gap:clamp(20px,4vw,44px);margin-top:clamp(44px,6vw,68px)}
.flow-step{position:relative;padding:clamp(28px,3.6vw,40px);background:var(--paper);border:1px solid var(--line);border-radius:3px}
.section--sumi .flow-step{background:rgba(255,255,255,.05);border-color:rgba(255,255,255,.16)}
.flow-step .step{font-family:"Cormorant Garamond",serif;font-style:italic;letter-spacing:.14em;color:var(--gold);font-size:.9rem;text-transform:uppercase}
.flow-step h3{font-family:"Noto Serif JP",serif;font-weight:600;font-size:1.2rem;margin:.3em 0 .5em}
.flow-step p{color:var(--ink-soft);font-size:.92rem}
.section--sumi .flow-step p{color:#d7ccbc}

/* ---------- Delivery / handover ---------- */
.hand-grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(28px,5vw,64px);margin-top:clamp(44px,6vw,68px)}
.hand-card{background:var(--paper);border:1px solid var(--line);border-radius:3px;overflow:hidden;display:flex;flex-direction:column}
.hand-card .m{aspect-ratio:16/10;overflow:hidden;background:var(--washi)}
.hand-card .m img{width:100%;height:100%;object-fit:cover}
.hand-card .b{padding:clamp(24px,3vw,34px)}
.hand-card h3{font-family:"Noto Serif JP",serif;font-weight:600;font-size:1.2rem;margin-bottom:.5em}
.hand-card p{color:var(--ink-soft);font-size:.9rem}
.hand-card p+p{margin-top:.8em}

/* ---------- Definition list ---------- */
.dl{border-top:1px solid var(--line);margin-top:clamp(36px,5vw,52px)}
.dl div{display:grid;grid-template-columns:200px 1fr;gap:20px;padding:20px 0;border-bottom:1px solid var(--line)}
.dl dt{font-weight:600;font-size:.85rem;letter-spacing:.05em;color:var(--ink)}
.dl dd{color:var(--ink-soft);font-size:.9rem}
.section--sumi .dl{border-color:rgba(255,255,255,.18)}
.section--sumi .dl div{border-color:rgba(255,255,255,.18)}
.section--sumi .dl dt{color:#fff}
.section--sumi .dl dd{color:#d7ccbc}

/* ---------- Area ---------- */
.area-box{
  margin-top:clamp(40px,6vw,60px);display:grid;grid-template-columns:1fr 1fr;gap:clamp(28px,5vw,56px);
  align-items:center;background:var(--paper);border:1px solid var(--line);border-radius:3px;
  padding:clamp(28px,4vw,48px);
}
.area-box h3{font-family:"Noto Serif JP",serif;font-weight:600;font-size:1.2rem;margin-bottom:.6em}
.area-box .pref{display:flex;flex-wrap:wrap;gap:10px;margin:1em 0 1.4em}
.area-box .pref span{border:1px solid var(--gold);color:var(--beni-deep);padding:.4em 1em;font-size:.8rem;border-radius:2px;background:var(--washi)}
.area-box p{color:var(--ink-soft);font-size:.88rem}

/* ---------- Perk callout ---------- */
.perk{
  display:grid;grid-template-columns:auto 1fr;gap:clamp(20px,4vw,44px);align-items:center;
  background:var(--sumi);color:#efe7da;border-radius:4px;
  padding:clamp(30px,5vw,56px);border:1px solid rgba(255,255,255,.1);
}
.perk .mark{
  font-family:"Cormorant Garamond",serif;font-style:italic;
  font-size:clamp(2.4rem,6vw,3.6rem);color:var(--gold-light);line-height:1;
}
.perk h3{font-family:"Noto Serif JP",serif;font-weight:600;font-size:clamp(1.2rem,2.4vw,1.5rem);margin-bottom:.3em}
.perk p{color:#d7ccbc;font-size:.92rem;max-width:40em}

/* ---------- Contact ---------- */
.contact{position:relative;color:#fff;text-align:center;overflow:hidden;background:var(--sumi-deep)}
.contact-bg{position:absolute;inset:0;z-index:0}
.contact-bg img{width:100%;height:100%;object-fit:cover;opacity:.22}
.contact .wrap{position:relative;z-index:1;padding-top:clamp(84px,12vw,150px);padding-bottom:clamp(84px,12vw,150px)}
.contact .eyebrow{justify-content:center;color:var(--gold-light)}
.contact .eyebrow::before{background:var(--gold-light)}
.contact h2{font-family:"Cormorant Garamond","Noto Serif JP",serif;font-weight:500;font-size:clamp(2rem,5vw,3.6rem);margin:.3em 0 .5em}
.contact p{max-width:34em;margin:0 auto 1.4em;color:#e4dccd}
.contact .tel{font-family:"Cormorant Garamond",serif;font-size:clamp(1.6rem,4vw,2.4rem);letter-spacing:.06em;color:#fff;display:block;margin:.2em 0 1.6em}
.contact-actions{display:flex;flex-wrap:wrap;gap:16px;justify-content:center}

/* ---------- Brands strip ---------- */
.sisters{display:flex;flex-wrap:wrap;gap:12px 26px;margin-top:clamp(32px,5vw,48px)}
.sisters a{
  font-size:.86rem;letter-spacing:.04em;color:var(--ink-soft);
  border-bottom:1px solid var(--line);padding-bottom:3px;transition:color .3s var(--ease),border-color .3s var(--ease);
}
.sisters a:hover{color:var(--beni);border-color:var(--gold)}

/* ---------- Footer ---------- */
.site-footer{background:var(--sumi-deep);color:#a89f92;padding:clamp(56px,8vw,88px) 0 38px}
.footer-top{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:40px;padding-bottom:44px;border-bottom:1px solid rgba(255,255,255,.1)}
.footer-brand b{font-family:"Noto Serif JP",serif;letter-spacing:.14em;color:#eee3d4;display:block;font-size:1.05rem}
.footer-brand small{font-family:"Cormorant Garamond",serif;letter-spacing:.24em;text-transform:uppercase;font-size:.7rem;color:var(--gold-light)}
.footer-brand p{font-size:.82rem;margin-top:12px;max-width:30em}
.footer-col h4{font-size:.72rem;letter-spacing:.2em;text-transform:uppercase;color:var(--gold-light);margin-bottom:14px;font-family:"Cormorant Garamond",serif;font-weight:600}
.footer-col a{display:block;font-size:.85rem;padding:5px 0;transition:color .3s var(--ease)}
.footer-col a:hover{color:#fff}
.footer-bottom{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;padding-top:26px;font-size:.75rem;letter-spacing:.06em}

/* ---------- Sub pages ---------- */
.page-hero{padding:clamp(140px,20vw,220px) 0 clamp(50px,8vw,80px);background:var(--sumi);color:#fff}
.page-hero h1{font-family:"Noto Serif JP",serif;font-weight:600;font-size:clamp(1.7rem,4vw,2.6rem);letter-spacing:.04em}
.page-hero .en{font-family:"Cormorant Garamond",serif;font-style:italic;color:var(--gold-light);letter-spacing:.08em;display:block;margin-top:.3em}
.doc{padding:clamp(56px,9vw,96px) 0}
.doc .wrap{max-width:880px}
.doc h2{font-family:"Noto Serif JP",serif;font-weight:600;font-size:1.2rem;margin:2em 0 .7em;padding-bottom:.3em;border-bottom:1px solid var(--line)}
.doc h2:first-child{margin-top:0}
.doc p{margin:.6em 0;color:var(--ink-soft)}
.doc ul{margin:.6em 0 .6em 1.4em;color:var(--ink-soft)}
.doc li{margin:.3em 0}
.doc .dl{margin-top:0}

/* ---------- Reveal animation ---------- */
.reveal{opacity:0;transform:translateY(38px);transition:opacity 1s var(--ease),transform 1s var(--ease)}
.reveal.in{opacity:1;transform:none}
.reveal.d1{transition-delay:.12s}
.reveal.d2{transition-delay:.24s}
.reveal.d3{transition-delay:.36s}
@media(prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  .hero-bg img{animation:none;transform:none}
}

/* ---------- Responsive ---------- */
@media(max-width:1000px){
  .intro-grid,.hand-grid,.area-box,.perk{grid-template-columns:1fr}
  .intro-figure .cap{left:0}
  .points,.menu-grid{grid-template-columns:repeat(2,1fr)}
  .footer-top{grid-template-columns:1fr 1fr}
  .perk{text-align:center}
  .perk .mark{justify-self:center}
}
@media(max-width:720px){
  .nav{
    position:fixed;inset:0;background:var(--washi);flex-direction:column;
    justify-content:center;gap:26px;transform:translateX(100%);
    transition:transform .5s var(--ease);
  }
  .menu-open .nav{transform:none}
  .nav a{color:var(--ink)!important;font-size:1rem;letter-spacing:.14em}
  .burger{display:flex}
  .flow{grid-template-columns:1fr}
  .points{grid-template-columns:1fr}
  .menu-grid{grid-template-columns:1fr}
  .dl div{grid-template-columns:1fr;gap:4px}
  .footer-top{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:10px}
}