/* 余白 YOHAKU — design demo / LYCデザイン */

:root{
  --bg:#ffffff;
  --bg-soft:#f7f6f3;
  --gray-100:#efede8;
  --gray-200:#e4e1da;
  --gray-300:#d6d2c8;
  --gray-400:#bcb6a8;
  --gray-500:#9c9587;
  --gray-600:#78715f;
  --gray-700:#544f42;
  --ink:#2b2823;
  --accent:#a99677;
  --line:#e1ddd3;
  --maxw:1120px;
  --gap:clamp(1.5rem,4vw,3.5rem);
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"Zen Kaku Gothic New","Noto Sans JP",sans-serif;
  font-weight:400;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
  letter-spacing:.02em;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
h1,h2,h3,h4{margin:0;font-weight:500;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
button{font:inherit;background:none;border:none;cursor:pointer;color:inherit;}
.en{
  font-family:"Jost",sans-serif;
  letter-spacing:.14em;
  text-transform:uppercase;
}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 clamp(1.25rem,4vw,2.5rem);}
.narrow{max-width:760px;}

.skip{position:absolute;left:-999px;top:0;background:var(--ink);color:#fff;padding:.6em 1em;z-index:200;}
.skip:focus{left:1em;top:1em;}

/* ---------- demo ribbon ---------- */
.demo-ribbon{
  margin:0;
  padding:.6em 1em;
  text-align:center;
  background:var(--ink);
  color:#f3f1ec;
  font-size:.78rem;
  letter-spacing:.04em;
  line-height:1.6;
}
.demo-ribbon b{color:#fff;}

/* ---------- header ---------- */
.site-head{
  position:sticky;top:0;z-index:100;
  background:rgba(255,255,255,.9);
  backdrop-filter:blur(6px);
  border-bottom:1px solid transparent;
  transition:border-color .3s, background .3s;
}
.site-head.is-scrolled{
  border-color:var(--line);
  background:rgba(255,255,255,.96);
}
.head-inner{
  max-width:var(--maxw);margin:0 auto;
  padding:1.1rem clamp(1.25rem,4vw,2.5rem);
  display:flex;align-items:center;justify-content:space-between;gap:1.5rem;
}
.brand{display:flex;align-items:baseline;gap:.6rem;}
.brand-jp{font-size:1.15rem;letter-spacing:.28em;font-weight:500;}
.brand-en{font-family:"Jost",sans-serif;font-size:.68rem;letter-spacing:.32em;color:var(--gray-500);}
.gnav ul{display:flex;gap:clamp(1.2rem,2.4vw,2.4rem);}
.gnav a{font-size:.82rem;letter-spacing:.1em;color:var(--gray-700);position:relative;padding:.2em 0;}
.gnav a::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:1px;
  background:var(--ink);transform:scaleX(0);transform-origin:right;transition:transform .35s;
}
.gnav a:hover::after,.gnav a:focus-visible::after{transform:scaleX(1);transform-origin:left;}
.navtoggle{display:none;flex-direction:column;gap:5px;padding:.4rem;}
.navtoggle span{width:22px;height:1px;background:var(--ink);display:block;}

/* ---------- hero ---------- */
.hero{
  position:relative;
  min-height:92vh;
  display:flex;align-items:center;
  background:
    radial-gradient(ellipse at 78% 18%, #f2efe8 0%, transparent 55%),
    linear-gradient(180deg,#fbfaf8 0%, var(--bg-soft) 100%);
  overflow:hidden;
}
.hero-inner{
  max-width:var(--maxw);margin:0 auto;width:100%;
  padding:clamp(4rem,10vh,6rem) clamp(1.25rem,4vw,2.5rem) 4rem;
  display:grid;grid-template-columns:1.1fr .9fr;gap:2rem;align-items:center;
}
.hero-copy .en{font-size:.78rem;color:var(--gray-600);display:block;margin-bottom:1.2rem;}
.hero-copy h1{
  font-size:clamp(2.1rem,5vw,3.4rem);
  line-height:1.5;
  font-weight:500;
}
.hero-copy h1 em{
  font-style:normal;
  display:block;
  font-family:"Jost",sans-serif;
  font-weight:300;
  font-size:.5em;
  letter-spacing:.3em;
  color:var(--gray-500);
  margin-top:.6em;
}
.hero-lead{margin-top:1.6rem;color:var(--gray-700);font-size:.96rem;max-width:34em;}
.hero-cta{display:flex;gap:1rem;margin-top:2.4rem;flex-wrap:wrap;}

.hero-art{position:relative;aspect-ratio:1/1;display:flex;align-items:center;justify-content:center;}
.hero-art svg{width:100%;height:100%;}

.scrolldown{
  position:absolute;left:50%;bottom:1.8rem;transform:translateX(-50%);
  display:flex;flex-direction:column;align-items:center;gap:.5rem;
  font-size:.65rem;letter-spacing:.2em;color:var(--gray-500);
}
.scrolldown::after{
  content:"";width:1px;height:34px;background:var(--gray-400);
  animation:scrollpulse 2s ease-in-out infinite;
}
@keyframes scrollpulse{0%,100%{opacity:.2;}50%{opacity:1;}}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:.6em;
  padding:.95em 1.9em;
  font-size:.82rem;letter-spacing:.08em;
  border:1px solid var(--ink);
  transition:background .25s,color .25s;
}
.btn-primary{background:var(--ink);color:#fff;}
.btn-primary:hover{background:var(--gray-700);}
.btn-ghost{background:transparent;color:var(--ink);}
.btn-ghost:hover{background:var(--ink);color:#fff;}

/* ---------- section shell ---------- */
section{padding:clamp(4.5rem,10vh,7.5rem) 0;}
.section-head{margin-bottom:clamp(2.5rem,6vw,4rem);}
.section-head .en{font-size:.74rem;color:var(--gray-500);display:block;margin-bottom:.8rem;}
.section-head h2{font-size:clamp(1.6rem,3.4vw,2.3rem);}
.section-head .lead{margin-top:1rem;color:var(--gray-600);font-size:.92rem;max-width:38em;}
.center{text-align:center;margin-left:auto;margin-right:auto;}

.divider{
  width:1px;height:56px;background:var(--gray-300);
  margin:0 auto clamp(2.5rem,6vw,4rem);
}

/* ---------- concept ---------- */
.concept{background:var(--bg-soft);}
.concept-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(1.5rem,3vw,2.5rem);
}
.concept-card{
  background:var(--bg);
  padding:clamp(2rem,4vw,2.6rem) clamp(1.6rem,3vw,2rem);
  border:1px solid var(--line);
}
.concept-card .ic{width:38px;height:38px;margin-bottom:1.6rem;color:var(--gray-700);}
.concept-card h3{font-size:1.05rem;margin-bottom:.9rem;letter-spacing:.04em;}
.concept-card p{font-size:.86rem;color:var(--gray-600);}

.concept-statement{
  margin-top:clamp(3rem,6vw,4.5rem);
  text-align:center;
  padding:clamp(2.5rem,5vw,3.5rem) 1rem;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.concept-statement p{
  font-size:clamp(1.1rem,2.4vw,1.5rem);
  line-height:2;
  font-weight:500;
}
.concept-statement .en{display:block;margin-top:1.2rem;font-size:.7rem;color:var(--gray-500);}

/* ---------- menu ---------- */
.menu-tabs{display:flex;gap:.5rem;justify-content:center;margin-bottom:clamp(2.5rem,5vw,3.5rem);}
.menu-tab{
  padding:.7em 1.6em;font-size:.8rem;letter-spacing:.08em;
  border:1px solid var(--line);color:var(--gray-600);
}
.menu-tab.is-active{background:var(--ink);color:#fff;border-color:var(--ink);}

.menu-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(1.2rem,2.6vw,2rem);
}
.menu-group{display:none;}
.menu-group.is-active{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(1.2rem,2.6vw,2rem);}

.menu-card{
  border:1px solid var(--line);
  padding:clamp(1.8rem,3vw,2.2rem) clamp(1.4rem,2.6vw,1.8rem);
  display:flex;flex-direction:column;gap:1.1rem;
  transition:box-shadow .3s, transform .3s;
}
.menu-card:hover{box-shadow:0 18px 40px -28px rgba(43,40,35,.35);transform:translateY(-2px);}
.menu-icon{
  width:56px;height:56px;border-radius:50%;
  background:var(--bg-soft);
  display:flex;align-items:center;justify-content:center;
  color:var(--gray-700);
}
.menu-icon svg{width:26px;height:26px;}
.menu-name{font-size:1rem;letter-spacing:.03em;}
.menu-name .tag{
  display:inline-block;font-size:.62rem;letter-spacing:.06em;color:var(--accent);
  border:1px solid var(--accent);padding:.15em .6em;margin-bottom:.6em;
}
.menu-desc{font-size:.82rem;color:var(--gray-600);flex:1;}
.menu-price{
  font-family:"Jost",sans-serif;font-size:.95rem;letter-spacing:.03em;
  padding-top:.8rem;border-top:1px solid var(--line);
}

.menu-note{
  margin-top:clamp(2.5rem,5vw,3.5rem);
  text-align:center;font-size:.8rem;color:var(--gray-500);
}

/* ---------- gallery strip (illustrated, no photos yet) ---------- */
.strip{
  display:grid;grid-template-columns:repeat(4,1fr);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.strip-cell{
  aspect-ratio:1/1;
  display:flex;align-items:center;justify-content:center;
  border-right:1px solid var(--line);
  background:var(--bg-soft);
  color:var(--gray-400);
}
.strip-cell:last-child{border-right:none;}
.strip-cell svg{width:34%;height:34%;}
.strip-cell:nth-child(even){background:var(--bg);}

/* ---------- shop / access ---------- */
.shop{background:var(--bg-soft);}
.shop-grid{
  display:grid;grid-template-columns:.95fr 1.05fr;gap:clamp(2rem,4vw,3.5rem);align-items:stretch;
}
.shop-info{background:var(--bg);border:1px solid var(--line);padding:clamp(2rem,4vw,2.8rem);}
.shop-info dl{display:flex;flex-direction:column;gap:1.3rem;}
.shop-info .row{display:grid;grid-template-columns:6.5em 1fr;gap:1rem;font-size:.88rem;}
.shop-info dt{color:var(--gray-500);font-size:.78rem;letter-spacing:.06em;padding-top:.2em;}
.shop-info dd{margin:0;}
.shop-sns{display:flex;gap:.9rem;margin-top:1.8rem;}
.shop-sns a{
  width:38px;height:38px;border:1px solid var(--line);border-radius:50%;
  display:flex;align-items:center;justify-content:center;
}
.shop-sns svg{width:16px;height:16px;}

.map-wrap{border:1px solid var(--line);min-height:280px;overflow:hidden;position:relative;}
.map-wrap iframe{width:100%;height:100%;min-height:280px;border:0;filter:grayscale(.5) contrast(1.05);}
.map-fallback{
  position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  background:var(--bg-soft);color:var(--gray-500);font-size:.8rem;text-align:center;padding:1rem;
}

/* ---------- CTA band ---------- */
.cta-band{
  text-align:center;
  padding:clamp(4rem,9vh,6rem) 0;
}
.cta-band h2{font-size:clamp(1.4rem,3vw,2rem);margin-bottom:1.4rem;}
.cta-band p{color:var(--gray-600);font-size:.9rem;margin-bottom:2.2rem;}

/* ---------- footer ---------- */
.site-foot{background:var(--ink);color:#d9d5cb;padding:clamp(3rem,6vw,4rem) 0 1.6rem;}
.foot-top{
  display:flex;justify-content:space-between;gap:2rem;flex-wrap:wrap;
  padding-bottom:2.4rem;border-bottom:1px solid rgba(255,255,255,.12);
}
.foot-brand .brand-jp{color:#f3f1ec;}
.foot-brand p{margin-top:1rem;font-size:.82rem;color:#b3ae9f;max-width:26em;}
.foot-nav ul{display:flex;flex-direction:column;gap:.7rem;}
.foot-nav a{font-size:.82rem;color:#c9c4b6;}
.foot-bottom{
  padding-top:1.6rem;display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap;
  font-size:.72rem;color:#8f8a7b;
}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .7s ease,transform .7s ease;}
.reveal.is-visible{opacity:1;transform:none;}

/* ---------- responsive ---------- */
@media (max-width:900px){
  .hero-inner{grid-template-columns:1fr;text-align:center;}
  .hero-copy{order:2;}
  .hero-art{order:1;max-width:280px;margin:0 auto;}
  .hero-lead{margin-left:auto;margin-right:auto;}
  .hero-cta{justify-content:center;}
  .concept-grid{grid-template-columns:1fr;}
  .menu-grid,.menu-group.is-active{grid-template-columns:repeat(2,1fr);}
  .shop-grid{grid-template-columns:1fr;}
  .strip{grid-template-columns:repeat(2,1fr);}
  .strip-cell:nth-child(2n){border-right:none;}
  .strip-cell{border-bottom:1px solid var(--line);}
}

@media (max-width:640px){
  .gnav{
    position:fixed;inset:0 0 0 auto;width:min(78vw,320px);height:100vh;
    background:#fff;padding:6rem 2rem 2rem;
    transform:translateX(100%);transition:transform .35s ease;
    box-shadow:-10px 0 30px rgba(0,0,0,.08);
  }
  .gnav.is-open{transform:translateX(0);}
  .gnav ul{flex-direction:column;gap:1.6rem;}
  .gnav a{font-size:1rem;}
  .navtoggle{display:flex;}
  .navdim{
    position:fixed;inset:0;background:rgba(20,18,15,.35);
    opacity:0;pointer-events:none;transition:opacity .3s;z-index:90;
  }
  .navdim.is-open{opacity:1;pointer-events:auto;}
  .menu-grid,.menu-group.is-active{grid-template-columns:1fr;}
  .foot-top{flex-direction:column;gap:2rem;}
}