:root{
  --bg:#f5efe4;
  --paper:#fbf7f0;
  --ink:#2f241b;
  --brown:#543a28;
  --sub:#7d6a59;
  --line:#e2d6c4;
  --red:#a8322a;
  --mustard:#c99a2e;
  --green:#2f5a47;
  --serif-jp:'Shippori Mincho', 'Hiragino Mincho ProN', serif;
  --serif-en:'Cormorant Garamond', serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:72px}
body{margin:0;background:var(--bg);color:var(--ink);
  font-family:var(--serif-jp);line-height:1.95;letter-spacing:.04em;
  -webkit-font-smoothing:antialiased}
img,video{display:block;max-width:100%}
a{color:inherit}
h1,h2,h3{font-weight:500;line-height:1.5;margin:0}
p{margin:0 0 1em}

/* header */
.site-header{position:fixed;inset:0 0 auto;z-index:50;display:flex;align-items:center;justify-content:space-between;
  padding:14px clamp(16px,4vw,48px);transition:background .4s,box-shadow .4s,color .4s;color:#fff}
.site-header.solid{background:rgba(245,239,228,.94);backdrop-filter:blur(8px);color:var(--brown);box-shadow:0 1px 0 var(--line)}
.brand{display:flex;align-items:baseline;gap:10px;text-decoration:none}
.brand-jp{font-size:13px;letter-spacing:.4em}
.brand-en{font-family:var(--serif-en);font-size:28px;letter-spacing:.04em;line-height:1}
.nav{display:flex;gap:clamp(16px,2.4vw,32px)}
.nav a{font-family:var(--serif-en);font-size:17px;letter-spacing:.08em;text-decoration:none;position:relative}
.nav a::after{content:"";position:absolute;left:0;right:100%;bottom:-2px;height:1px;background:currentColor;transition:right .3s}
.nav a:hover::after{right:0}
.menu-btn{display:none;background:none;border:0;width:40px;height:40px;position:relative;cursor:pointer;color:inherit}
.menu-btn span{position:absolute;left:9px;right:9px;height:1.5px;background:currentColor;transition:transform .3s,top .3s}
.menu-btn span:first-child{top:15px}.menu-btn span:last-child{top:24px}
.menu-btn[aria-expanded="true"] span:first-child{top:20px;transform:rotate(45deg)}
.menu-btn[aria-expanded="true"] span:last-child{top:20px;transform:rotate(-45deg)}

/* hero */
.hero{position:relative;height:100svh;min-height:560px;overflow:hidden;color:#fff;display:flex;align-items:flex-end}
.hero-video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.hero-shade{position:absolute;inset:0;background:
  linear-gradient(90deg,rgba(30,20,12,.62) 0%,rgba(30,20,12,.25) 55%,rgba(30,20,12,0) 80%),
  linear-gradient(180deg,rgba(30,20,12,.45) 0%,rgba(30,20,12,.05) 30%,rgba(30,20,12,.55) 100%)}
.hero-text{position:relative;padding:0 clamp(16px,6vw,96px) clamp(72px,12vh,128px);max-width:760px}
.hero-kicker{font-family:var(--serif-en);font-style:italic;font-size:clamp(16px,2vw,20px);letter-spacing:.12em;margin-bottom:.6em;opacity:.9}
.hero h1{font-size:clamp(30px,5.4vw,58px);letter-spacing:.1em;line-height:1.55;text-shadow:0 2px 24px rgba(0,0,0,.25)}
.hero-sub{margin:1.2em 0 2em;font-size:clamp(14px,1.6vw,16px);opacity:.92}
.scroll-cue{position:absolute;left:50%;bottom:20px;width:1px;height:48px;background:rgba(255,255,255,.35);overflow:hidden}
.scroll-cue span{position:absolute;left:0;top:-48px;width:1px;height:48px;background:#fff;animation:cue 2.2s ease-in-out infinite}
@keyframes cue{to{top:48px}}

.btn{display:inline-block;padding:13px 30px;border:1px solid currentColor;text-decoration:none;font-size:14px;letter-spacing:.18em;
  transition:background .3s,color .3s}
.hero .btn:hover{background:#fff;color:var(--brown)}

/* sections */
.section{padding:clamp(80px,12vw,150px) 0}
.wrap{width:min(1120px,100% - 32px);margin:0 auto}
.eyebrow{font-family:var(--serif-en);font-style:italic;font-size:20px;color:var(--red);letter-spacing:.1em;margin-bottom:.2em}
.section h2{font-size:clamp(24px,3.4vw,34px);letter-spacing:.12em;color:var(--brown);margin-bottom:1em}
.section-head{max-width:640px;margin-bottom:clamp(40px,6vw,64px)}
.section-head p:last-child{color:var(--sub)}

.two-col{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(32px,6vw,80px);align-items:center}
.about-photo{margin:0;position:relative}
.about-photo img{aspect-ratio:4/5;object-fit:cover;width:100%}
.about-photo::before{content:"";position:absolute;inset:18px -18px -18px 18px;border:1px solid var(--mustard);z-index:-1}

/* items */
.items{background:var(--paper)}
.item-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:clamp(24px,3vw,40px) clamp(16px,2.4vw,32px)}
.item h3{font-size:18px;color:var(--brown);margin:18px 0 6px;letter-spacing:.1em}
.item p{font-size:14px;color:var(--sub);line-height:1.85}
.zoom{display:block;padding:0;border:0;background:none;cursor:zoom-in;overflow:hidden;width:100%}
.zoom img{width:100%;aspect-ratio:1/1;object-fit:cover;transition:transform .8s cubic-bezier(.2,.7,.2,1)}
.zoom:hover img{transform:scale(1.05)}
.item-thumbs{display:flex;gap:8px;margin-top:10px}
.item-thumbs .zoom{width:64px}

/* making */
.make-row{display:grid;grid-template-columns:1.2fr 1fr;gap:clamp(28px,5vw,64px);align-items:center;margin-bottom:clamp(56px,8vw,96px)}
.make-row:last-child{margin-bottom:0}
.make-row.reverse .make-media{order:2}
.make-media video,.make-media img{width:100%;aspect-ratio:16/10;object-fit:cover;background:#ddd}
.step{font-family:var(--serif-en);font-size:44px;color:var(--mustard);line-height:1}
.make-text h3{font-size:22px;color:var(--brown);margin:8px 0 14px;letter-spacing:.1em}
.make-text p{color:var(--sub);font-size:15px}
.mini-gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-top:18px}

/* contact */
.contact{text-align:center}
.contact p{color:var(--sub)}
.contact-links{display:flex;justify-content:center;gap:16px;flex-wrap:wrap;margin-top:32px}
.contact-card{min-width:260px;padding:22px 28px;border:1px solid var(--line);text-decoration:none;display:flex;flex-direction:column;gap:4px;
  transition:border-color .3s,background .3s;background:var(--paper)}
.contact-card:hover{border-color:var(--brown)}
.contact-card .label{font-family:var(--serif-en);font-size:22px;color:var(--brown)}
.contact-card .val{font-size:13px;color:var(--sub)}

/* footer */
.site-footer{background:#2a1e15;color:#cdbca6;text-align:center;padding:56px 16px 40px}
.footer-brand{flex-direction:column;align-items:center;gap:2px;color:#f2e8da;margin-bottom:18px}
.footer-brand .brand-en{font-size:40px}
.site-footer p{font-size:12px;margin:0;letter-spacing:.1em}

/* lightbox */
.lightbox{position:fixed;inset:0;z-index:100;background:rgba(20,14,9,.92);display:flex;align-items:center;justify-content:center;padding:24px;cursor:zoom-out}
.lightbox[hidden]{display:none}
.lightbox img{max-height:90vh;max-width:100%;object-fit:contain}
.lb-close{position:absolute;top:12px;right:16px;background:none;border:0;color:#fff;font-size:40px;cursor:pointer;line-height:1}

/* reveal */
.reveal{opacity:0;transform:translateY(28px);transition:opacity 1s ease,transform 1s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none;transition:none}
  .scroll-cue span{animation:none}
}

/* responsive */
@media (max-width:1000px){
  .item-grid{grid-template-columns:repeat(3,1fr)}
}
@media (max-width:860px){
  .menu-btn{display:block}
  /* ヘッダーの backdrop-filter が包含ブロックになるため、幅と高さを明示する */
  .nav{position:fixed;top:0;left:0;width:100vw;height:100dvh;background:var(--bg);color:var(--brown);flex-direction:column;align-items:center;justify-content:center;gap:28px;
    opacity:0;pointer-events:none;transition:opacity .35s;z-index:-1}
  .nav a{font-size:26px}
  .nav.open{opacity:1;pointer-events:auto}
  .site-header.menu-open{color:var(--brown)}
  .two-col,.make-row{grid-template-columns:1fr}
  .make-row.reverse .make-media{order:0}
  .item-grid{grid-template-columns:repeat(2,1fr)}
  .about-photo::before{inset:12px -10px -12px 10px}
}
@media (max-width:520px){
  .item-grid{grid-template-columns:1fr}
  .contact-card{min-width:0;width:100%}
  .brand-en{font-size:24px}
}