:root{
  --ink:#17151a;
  --ink-2:#201d24;
  --paper:#f7f2e9;
  --paper-2:#efe7d8;
  --red:#c1272d;
  --red-dark:#8f1b20;
  --gold:#c9a05a;
  --text:#3a3630;
  --text-light:#7a7468;
  --white:#fff;
  --radius:14px;
  --shadow:0 10px 30px rgba(23,21,26,.12);
  --shadow-lg:0 20px 50px rgba(23,21,26,.22);
  --ease:cubic-bezier(.22,.9,.3,1);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:'Poppins',sans-serif;background:var(--paper);color:var(--text);line-height:1.65;overflow-x:hidden}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit}
.container{max-width:1180px;margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.accent{color:var(--red)}

/* ---------- reveal animation ---------- */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.reveal.visible{opacity:1;transform:none}

/* ---------- navbar ---------- */
.navbar{position:fixed;top:0;left:0;right:0;z-index:100;padding:20px 0;transition:all .35s var(--ease)}
.navbar.scrolled{background:rgba(23,21,26,.96);padding:10px 0;box-shadow:0 6px 24px rgba(0,0,0,.35);backdrop-filter:blur(10px)}
.nav-container{max-width:1180px;margin:0 auto;padding:0 24px;display:flex;align-items:center;justify-content:space-between}
.nav-logo{display:flex;flex-direction:column;line-height:1.1}
.logo-jp{font-family:'Noto Serif JP',serif;font-weight:700;font-size:1.35rem;color:var(--white);letter-spacing:2px}
.logo-en{font-size:.6rem;letter-spacing:5px;color:var(--gold);font-weight:600}
.nav-links{display:flex;gap:30px;align-items:center}
.nav-links a{color:rgba(255,255,255,.85);font-size:.86rem;font-weight:500;letter-spacing:.6px;position:relative;padding:4px 0;transition:color .25s}
.nav-links a::after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:2px;background:var(--red);transition:width .3s var(--ease)}
.nav-links a:hover,.nav-links a.active{color:#fff}
.nav-links a:hover::after,.nav-links a.active::after{width:100%}
.nav-cta{background:var(--red);padding:9px 20px;border-radius:999px;color:#fff!important}
.nav-cta::after{display:none}
.nav-cta:hover{background:var(--red-dark)}
.hamburger{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;z-index:110;padding:6px}
.hamburger span{width:26px;height:2.5px;background:#fff;border-radius:2px;transition:all .3s var(--ease)}
.hamburger.open span:nth-child(1){transform:translateY(7.5px) rotate(45deg)}
.hamburger.open span:nth-child(2){opacity:0}
.hamburger.open span:nth-child(3){transform:translateY(-7.5px) rotate(-45deg)}

/* ---------- hero ---------- */
.hero{position:relative;min-height:100vh;display:flex;align-items:center;justify-content:center;text-align:center;overflow:hidden}
.hero-bg{position:absolute;inset:0;background:url("../images/truffle-salmon-somen.png") center/cover no-repeat;transform:scale(1.06);animation:heroZoom 18s ease-in-out infinite alternate}
@keyframes heroZoom{from{transform:scale(1.06)}to{transform:scale(1.16)}}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(180deg,rgba(15,13,18,.72) 0%,rgba(15,13,18,.45) 45%,rgba(15,13,18,.9) 100%)}
.hero-content{position:relative;z-index:2;padding:120px 24px 60px;max-width:900px}
.hero-jp{font-family:'Noto Serif JP',serif;color:var(--gold);letter-spacing:6px;font-size:.95rem;margin-bottom:14px}
.hero h1{font-size:clamp(2.6rem,7vw,4.8rem);color:#fff;font-weight:700;letter-spacing:8px;line-height:1.05}
.hero-jp-big{font-family:'Noto Serif JP',serif;font-size:clamp(1.4rem,3.4vw,2.2rem);color:var(--red);font-weight:700;letter-spacing:14px;margin:10px 0 14px;text-shadow:0 2px 14px rgba(0,0,0,.5)}
.hero-tagline{color:rgba(255,255,255,.88);font-size:clamp(.95rem,2vw,1.15rem);font-weight:300;letter-spacing:.5px}
.hero-badges{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;margin:30px 0 36px}
.badge{background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.28);backdrop-filter:blur(6px);color:#fff;padding:8px 18px;border-radius:999px;font-size:.8rem;letter-spacing:.5px}
.hero-buttons{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
.btn{display:inline-block;padding:15px 34px;border-radius:999px;font-weight:600;font-size:.9rem;letter-spacing:.8px;transition:all .3s var(--ease);cursor:pointer}
.btn-primary{background:var(--red);color:#fff;box-shadow:0 10px 26px rgba(193,39,45,.45)}
.btn-primary:hover{background:var(--red-dark);transform:translateY(-3px);box-shadow:0 16px 34px rgba(193,39,45,.55)}
.btn-outline{border:2px solid rgba(255,255,255,.7);color:#fff}
.btn-outline:hover{background:#fff;color:var(--ink);transform:translateY(-3px)}
.btn-sm{padding:11px 24px;font-size:.8rem}
.scroll-down{position:absolute;bottom:26px;left:50%;transform:translateX(-50%);color:#fff;font-size:2rem;opacity:.7;animation:bounce 2s infinite;z-index:2}
@keyframes bounce{0%,100%{transform:translate(-50%,0)}50%{transform:translate(-50%,10px)}}

/* ---------- section heads ---------- */
.section-head{text-align:center;max-width:640px;margin:0 auto 56px}
.section-label{display:inline-block;font-family:'Noto Serif JP',serif;color:var(--red);font-size:.82rem;letter-spacing:4px;font-weight:600;margin-bottom:12px;border-bottom:2px solid var(--gold);padding-bottom:6px}
.section-head h2{font-size:clamp(1.7rem,4vw,2.5rem);color:var(--ink);font-weight:700}
.section-head p{color:var(--text-light);margin-top:12px}

/* ---------- about ---------- */
.about{background:var(--paper)}
.about-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:70px;align-items:center}
.about-text h2{font-size:clamp(1.7rem,3.6vw,2.4rem);color:var(--ink);margin-bottom:20px;line-height:1.25}
.about-text p{margin-bottom:16px;color:var(--text)}
.about-img{position:relative}
.about-img img{border-radius:var(--radius);box-shadow:var(--shadow-lg);position:relative;z-index:2}
.about-img-frame{position:absolute;inset:-18px 18px 18px -18px;border:3px solid var(--red);border-radius:var(--radius);z-index:1}
.about-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:30px}
.stat{text-align:center;background:#fff;padding:16px 8px;border-radius:var(--radius);box-shadow:var(--shadow);border-bottom:3px solid var(--red)}
.stat-num{display:block;font-size:1.25rem;font-weight:700;color:var(--red)}
.stat-label{font-size:.72rem;color:var(--text-light);letter-spacing:.4px}

/* ---------- signature dishes ---------- */
.signature{background:var(--ink);color:#e9e2d4;position:relative}
.signature::before{content:"無比";position:absolute;top:40px;right:4%;font-family:'Noto Serif JP',serif;font-size:9rem;font-weight:700;color:rgba(255,255,255,.04);line-height:1;pointer-events:none}
.signature .section-head h2{color:#fff}
.signature .section-head p{color:rgba(233,226,212,.65)}
.dish-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:26px}
.dish-card{background:var(--ink-2);border-radius:var(--radius);overflow:hidden;border:1px solid rgba(255,255,255,.07);transition:transform .4s var(--ease),box-shadow .4s var(--ease),border-color .4s;display:flex;flex-direction:column}
.dish-card:hover{transform:translateY(-10px);box-shadow:0 22px 48px rgba(193,39,45,.28);border-color:rgba(193,39,45,.6)}
.dish-img{aspect-ratio:1/1;overflow:hidden}
.dish-img img{width:100%;height:100%;object-fit:cover;transition:transform .6s var(--ease)}
.dish-card:hover .dish-img img{transform:scale(1.09)}
.dish-body{padding:22px;display:flex;flex-direction:column;flex:1}
.dish-flag{align-self:flex-start;background:var(--red);color:#fff;font-size:.66rem;font-weight:600;letter-spacing:1.4px;text-transform:uppercase;padding:5px 12px;border-radius:999px;margin-bottom:12px}
.dish-body h3{font-size:1.02rem;color:#fff;line-height:1.35;margin-bottom:8px}
.dish-jp{display:block;font-family:'Noto Serif JP',serif;font-size:.78rem;color:var(--gold);font-weight:400;margin-top:3px}
.dish-body p{font-size:.83rem;color:rgba(233,226,212,.62);flex:1}
.dish-price{margin-top:14px;font-weight:700;color:var(--gold);font-size:1.02rem}

/* ---------- menu ---------- */
.menu{background:var(--paper)}
.menu-tabs{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;margin-bottom:44px}
.tab-btn{border:2px solid var(--ink);background:transparent;color:var(--ink);padding:11px 22px;border-radius:999px;font-family:'Poppins',sans-serif;font-weight:600;font-size:.83rem;letter-spacing:.5px;cursor:pointer;transition:all .3s var(--ease)}
.tab-btn:hover{border-color:var(--red);color:var(--red)}
.tab-btn.active{background:var(--red);border-color:var(--red);color:#fff;box-shadow:0 8px 20px rgba(193,39,45,.35)}
.menu-panels{max-width:880px;margin:0 auto}
.tab-panel{display:none;grid-template-columns:1fr 1fr;gap:6px 44px;animation:fadeIn .45s var(--ease)}
.tab-panel.active{display:grid}
@keyframes fadeIn{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}
.menu-item{display:flex;justify-content:space-between;gap:18px;padding:18px 4px;border-bottom:1px dashed rgba(23,21,26,.18);align-items:flex-start}
.menu-item h4{font-size:.97rem;color:var(--ink);font-weight:600}
.menu-item h4 span{font-family:'Noto Serif JP',serif;font-weight:400;color:var(--text-light);font-size:.8rem;margin-left:6px}
.tag{font-style:normal;background:var(--gold);color:var(--ink);font-size:.62rem;font-weight:700;padding:3px 9px;border-radius:999px;vertical-align:middle;margin-left:8px;letter-spacing:.6px}
.menu-item p{font-size:.8rem;color:var(--text-light);margin-top:5px}
.price{font-weight:700;color:var(--red);white-space:nowrap;font-size:.95rem;padding-top:2px}
.menu-note{text-align:center;margin-top:44px;color:var(--text-light);font-size:.82rem}

/* ---------- gallery ---------- */
.gallery{background:var(--paper-2)}
.gallery-grid{display:grid;grid-template-columns:repeat(4,1fr);grid-auto-rows:220px;gap:16px}
.gallery-item{position:relative;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.g-wide{grid-column:span 2}
.gallery-item img{width:100%;height:100%;object-fit:cover;transition:transform .6s var(--ease)}
.gallery-item:hover img{transform:scale(1.08)}
.gallery-item span{position:absolute;left:0;right:0;bottom:0;padding:26px 16px 12px;background:linear-gradient(transparent,rgba(15,13,18,.85));color:#fff;font-size:.85rem;font-weight:600;letter-spacing:.5px;opacity:0;transform:translateY(8px);transition:all .35s var(--ease)}
.gallery-item:hover span{opacity:1;transform:none}

/* ---------- reviews ---------- */
.reviews{background:var(--ink);color:#e9e2d4}
.reviews .section-head h2{color:#fff}
.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;margin-bottom:44px}
.review-card{background:var(--ink-2);border-left:4px solid var(--red);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow)}
.stars{color:var(--gold);letter-spacing:3px;margin-bottom:14px}
.review-card p{font-size:.92rem;margin-bottom:10px}
.review-en{color:rgba(233,226,212,.6);font-size:.83rem!important;font-style:italic}
.review-card footer{color:var(--gold);font-size:.78rem;letter-spacing:.5px}
.gmaps-cta{text-align:center}

/* ---------- visit ---------- */
.visit{background:var(--paper)}
.visit-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.visit-card{background:#fff;border-radius:var(--radius);padding:34px 30px;box-shadow:var(--shadow);border-top:4px solid var(--red);transition:transform .35s var(--ease),box-shadow .35s var(--ease)}
.visit-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg)}
.visit-card h3{color:var(--ink);margin-bottom:14px;font-size:1.08rem}
.visit-card p{margin-bottom:12px;font-size:.9rem}
.plus-code{font-size:.78rem;color:var(--text-light)}
.contact-link{color:var(--red);font-weight:700;font-size:1.15rem}
.hours{list-style:none;margin-bottom:14px}
.hours li{display:flex;justify-content:space-between;padding:10px 0;border-bottom:1px dashed rgba(23,21,26,.15);font-size:.86rem}
.open-status{font-weight:600;font-size:.88rem}
.open-status.open{color:#1e8e3e}
.open-status.closed{color:var(--red)}
.services{list-style:none;margin-bottom:18px}
.services li{padding:5px 0;font-size:.88rem}
.visit-card .btn-outline{border-color:var(--ink);color:var(--ink)}
.visit-card .btn-outline:hover{background:var(--ink);color:#fff}

/* ---------- footer ---------- */
.footer{background:#100e13;color:rgba(233,226,212,.7);padding:70px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding-bottom:50px}
.footer-logo{font-family:'Noto Serif JP',serif;font-size:1.3rem;color:#fff;font-weight:700}
.footer-logo span{display:block;font-family:'Poppins',sans-serif;font-size:.6rem;letter-spacing:5px;color:var(--gold);margin-top:4px}
.footer h4{color:#fff;margin-bottom:16px;font-size:.95rem}
.footer a{display:block;padding:4px 0;font-size:.86rem;transition:color .25s}
.footer a:hover{color:var(--gold)}
.footer p{font-size:.86rem}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding:22px 24px;text-align:center;font-size:.78rem;color:rgba(233,226,212,.45)}

/* ---------- back to top ---------- */
.back-to-top{position:fixed;bottom:28px;right:28px;width:48px;height:48px;border-radius:50%;background:var(--red);color:#fff;border:none;font-size:1.2rem;cursor:pointer;box-shadow:0 10px 26px rgba(193,39,45,.5);opacity:0;pointer-events:none;transition:all .35s var(--ease);z-index:90}
.back-to-top.show{opacity:1;pointer-events:auto}
.back-to-top:hover{background:var(--red-dark);transform:translateY(-4px)}

/* ---------- responsive ---------- */
@media(max-width:1024px){
  .dish-grid{grid-template-columns:repeat(2,1fr)}
  .gallery-grid{grid-template-columns:repeat(2,1fr);grid-auto-rows:200px}
  .footer-grid{grid-template-columns:1fr 1fr}
  .signature::before{font-size:6rem}
}
@media(max-width:860px){
  .section{padding:70px 0}
  .about-grid{grid-template-columns:1fr;gap:44px}
  .about-stats{grid-template-columns:repeat(2,1fr)}
  .review-grid{grid-template-columns:1fr}
  .visit-grid{grid-template-columns:1fr}
  .tab-panel{grid-template-columns:1fr}
  .hamburger{display:flex}
  .nav-links{position:fixed;top:0;right:0;height:100vh;width:min(78vw,320px);background:rgba(18,16,21,.98);flex-direction:column;justify-content:center;gap:30px;transform:translateX(100%);transition:transform .4s var(--ease);backdrop-filter:blur(12px)}
  .nav-links.open{transform:translateX(0)}
  .nav-links a{font-size:1.05rem}
}
@media(max-width:560px){
  .dish-grid{grid-template-columns:1fr}
  .gallery-grid{grid-template-columns:1fr;grid-auto-rows:230px}
  .g-wide{grid-column:span 1}
  .hero h1{letter-spacing:4px}
  .hero-jp-big{letter-spacing:8px}
  .btn{padding:13px 26px;font-size:.82rem}
  .footer-grid{grid-template-columns:1fr}
  .menu-tabs{gap:8px}
  .tab-btn{padding:9px 15px;font-size:.76rem}
}