/* ===== SUKITEKKI - Nanbu Ironware EC ===== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --black:#0a0a0a;--dark:#1a1a1a;--dark-2:#2a2a2a;
  --charcoal:#333;--iron:#555;--iron-light:#888;
  --gold:#c4956a;--gold-light:#d4a87a;--gold-dark:#a07050;
  --orange:#e85c30;--orange-dark:#c04020;
  --cream:#f5f0ea;--cream-dark:#e8dcd0;
  --white:#ffffff;
  --text:#2a2218;--text-light:#6a5c4e;
  --radius:8px;
}
html{scroll-behavior:smooth}
body{font-family:'Noto Serif JP',serif;color:var(--text);line-height:1.8;background:var(--cream)}
a{color:inherit;text-decoration:none}
ul{list-style:none}
.container{max-width:1000px;margin:0 auto;padding:0 24px}
.center{text-align:center}

/* Fade-in */
.fade-in{opacity:0;transform:translateY(24px);transition:opacity .8s ease,transform .8s ease}
.fade-in.visible{opacity:1;transform:translateY(0)}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;padding:12px 32px;font-size:.9rem;font-weight:600;letter-spacing:.1em;transition:all .3s;cursor:pointer;border:none;font-family:inherit}
.btn-outline-gold{background:transparent;color:var(--gold);border:1.5px solid var(--gold);letter-spacing:.15em}
.btn-outline-gold:hover{background:var(--gold);color:var(--black)}
.btn-sm{padding:8px 20px;font-size:.8rem;background:transparent;color:var(--gold);border:1px solid var(--gold);letter-spacing:.1em}
.btn-sm:hover{background:var(--gold);color:var(--white)}
.btn-lg{padding:16px 48px;font-size:1rem}

/* Header */
.header{position:fixed;top:0;left:0;right:0;background:rgba(10,10,10,.92);backdrop-filter:blur(12px);z-index:100;border-bottom:1px solid rgba(196,149,106,.15)}
.header-inner{display:flex;align-items:center;justify-content:space-between;max-width:1000px;margin:0 auto;padding:0 24px;height:60px}
.logo{font-size:1.2rem;font-weight:700;color:var(--gold);letter-spacing:.25em}
.nav-list{display:flex;gap:28px;font-size:.85rem;color:var(--iron-light);letter-spacing:.08em}
.nav-list a{transition:color .2s}
.nav-list a:hover{color:var(--gold)}
.nav-cta{color:var(--gold) !important;border:1px solid var(--gold);padding:6px 16px}
.nav-cta:hover{background:var(--gold);color:var(--black) !important}
.hamburger{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:8px}
.hamburger span{display:block;width:22px;height:1.5px;background:var(--gold);transition:transform .3s,opacity .3s}
.hamburger.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.hamburger.open span:nth-child(2){opacity:0}
.hamburger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* First View */
.firstview{position:relative;height:100vh;display:flex;align-items:center;justify-content:center;overflow:hidden;
  background:linear-gradient(160deg,#0a0a0a 0%,#1a0a00 20%,#2a1408 40%,#3a1a0c 55%,#1a0a00 75%,#0a0a0a 100%)}
.fv-bg{position:absolute;inset:0}

/* Sparks */
.spark{position:absolute;width:3px;height:3px;background:var(--orange);border-radius:50%;box-shadow:0 0 6px var(--orange),0 0 12px rgba(232,92,48,.5)}
.spark-1{top:35%;left:40%;animation:sparkFloat 2.5s ease-out infinite}
.spark-2{top:45%;left:55%;animation:sparkFloat 3s ease-out infinite .5s}
.spark-3{top:50%;left:42%;animation:sparkFloat 2s ease-out infinite 1s}
.spark-4{top:40%;left:58%;animation:sparkFloat 2.8s ease-out infinite 1.5s}
.spark-5{top:55%;left:48%;animation:sparkFloat 3.2s ease-out infinite .8s}
.spark-6{top:38%;left:52%;animation:sparkFloat 2.2s ease-out infinite 2s}
@keyframes sparkFloat{
  0%{opacity:1;transform:translate(0,0) scale(1)}
  100%{opacity:0;transform:translate(var(--tx,20px),var(--ty,-60px)) scale(0)}
}
.spark-1{--tx:-15px;--ty:-70px}.spark-2{--tx:25px;--ty:-80px}.spark-3{--tx:-30px;--ty:-50px}
.spark-4{--tx:10px;--ty:-90px}.spark-5{--tx:-20px;--ty:-60px}.spark-6{--tx:35px;--ty:-75px}

/* Embers */
.ember{position:absolute;width:2px;height:2px;background:#ff6030;border-radius:50%;box-shadow:0 0 4px #ff6030}
.ember-1{bottom:30%;left:45%;animation:emberRise 4s ease-out infinite}
.ember-2{bottom:25%;left:50%;animation:emberRise 5s ease-out infinite 1.5s}
.ember-3{bottom:35%;left:55%;animation:emberRise 3.5s ease-out infinite 3s}
@keyframes emberRise{0%{opacity:.8;transform:translateY(0)}100%{opacity:0;transform:translateY(-120px)}}

/* Flames */
.flame{position:absolute;bottom:0;width:100%;height:30%;opacity:.15}
.flame-1{background:radial-gradient(ellipse at 45% 100%,rgba(232,92,48,.4) 0%,transparent 60%);animation:flicker 3s ease-in-out infinite}
.flame-2{background:radial-gradient(ellipse at 55% 100%,rgba(200,60,20,.3) 0%,transparent 55%);animation:flicker 4s ease-in-out infinite 1s}
.flame-3{background:radial-gradient(ellipse at 50% 100%,rgba(255,120,40,.2) 0%,transparent 50%);animation:flicker 3.5s ease-in-out infinite 2s}
@keyframes flicker{0%,100%{opacity:.1;transform:scaleY(1)}50%{opacity:.2;transform:scaleY(1.05)}}

.fv-content{position:relative;z-index:1;text-align:center;color:var(--white)}
.fv-sub-top{font-size:.8rem;letter-spacing:.4em;color:var(--gold);margin-bottom:12px}
.fv-title{font-size:4.5rem;font-weight:900;letter-spacing:.3em;margin-bottom:8px;text-shadow:0 2px 20px rgba(0,0,0,.5)}
.fv-sub-ja{font-size:1rem;letter-spacing:.3em;color:var(--iron-light);margin-bottom:32px}
.fv-tagline{font-size:1.1rem;letter-spacing:.1em;color:rgba(255,255,255,.7);margin-bottom:40px;line-height:2}

.fv-scroll{position:absolute;bottom:32px;left:50%;transform:translateX(-50%);z-index:1}
.scroll-line{display:block;width:1px;height:48px;background:linear-gradient(to bottom,var(--gold),transparent);animation:scrollPulse 2s ease-in-out infinite}
@keyframes scrollPulse{0%,100%{opacity:.3}50%{opacity:.8}}

/* Sections */
.section{padding:100px 0}
.section-dark{background:var(--dark);color:var(--cream)}
.section-header{text-align:center;margin-bottom:56px}
.section-label{font-size:.75rem;letter-spacing:.4em;color:var(--gold);margin-bottom:8px;text-transform:uppercase}
.section-title{font-size:1.8rem;font-weight:700;letter-spacing:.1em}

/* Story */
.story-content{max-width:680px;margin:0 auto;text-align:center}
.story-label{font-size:.75rem;letter-spacing:.4em;color:var(--gold);margin-bottom:8px}
.story-title{font-size:2rem;font-weight:700;margin-bottom:32px;letter-spacing:.08em}
.story-text p{font-size:.95rem;color:var(--text-light);line-height:2.2;margin-bottom:20px}

/* Divider */
.divider{display:flex;align-items:center;justify-content:center;gap:16px;padding:24px 0}
.divider-line{width:80px;height:1px;background:var(--gold);opacity:.3}
.divider-diamond{width:8px;height:8px;background:var(--gold);transform:rotate(45deg);opacity:.5}

/* Products */
.product-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:32px}
.product-card{background:var(--dark-2);border:1px solid rgba(196,149,106,.1);overflow:hidden;transition:border-color .3s}
.product-card:hover{border-color:rgba(196,149,106,.3)}
.product-img{aspect-ratio:4/3;overflow:hidden}
.product-placeholder{width:100%;height:100%;transition:transform .5s}
.product-card:hover .product-placeholder{transform:scale(1.03)}
.tetsubin{background:url('https://images.unsplash.com/photo-1574775361223-f559aee0f803?w=600&h=450&fit=crop') center/cover}
.kyusu{background:url('https://images.unsplash.com/photo-1674707429029-9de78da14b6b?w=600&h=450&fit=crop') center/cover}
.frypan{background:url('https://images.unsplash.com/photo-1637739699971-7d4d5194e75c?w=600&h=450&fit=crop') center/cover}
.nabeshiki{background:url('https://images.unsplash.com/photo-1601043966939-687b89dc6f9c?w=600&h=450&fit=crop') center/cover}
.product-info{padding:24px}
.product-info h3{font-size:1rem;font-weight:700;margin-bottom:8px;letter-spacing:.05em}
.product-desc{font-size:.85rem;color:var(--iron-light);margin-bottom:12px;line-height:1.7}
.product-price{font-size:1.1rem;font-weight:700;color:var(--gold);margin-bottom:16px}
.tax{font-size:.75rem;font-weight:400;color:var(--iron-light)}

/* Craftsman */
.craftsman-content{display:grid;grid-template-columns:280px 1fr;gap:48px;align-items:center;max-width:800px;margin:0 auto}
.craftsman-portrait{aspect-ratio:3/4;border-radius:var(--radius);overflow:hidden}
.portrait-placeholder{width:100%;height:100%;background:url('https://images.unsplash.com/photo-1511306162219-1c5a469ab86c?w=400&h=530&fit=crop') center/cover}
.craftsman-text h3{font-size:1.2rem;font-weight:700;margin-bottom:4px;letter-spacing:.1em}
.craftsman-role{font-size:.8rem;color:var(--gold);letter-spacing:.2em;margin-bottom:20px}
.craftsman-text blockquote{font-size:.95rem;color:var(--text-light);line-height:2.2;border-left:2px solid var(--gold);padding-left:20px;font-style:italic}

/* CTA */
.section-cta{background:linear-gradient(135deg,var(--dark) 0%,#2a1a0a 50%,var(--dark) 100%);color:var(--cream);padding:80px 0}
.cta-label{font-size:.75rem;letter-spacing:.4em;color:var(--gold);margin-bottom:8px}
.cta-title{font-size:1.8rem;font-weight:700;margin-bottom:12px;letter-spacing:.1em}
.cta-sub{font-size:.95rem;color:var(--iron-light);margin-bottom:32px}

/* Footer */
.footer{background:var(--black);color:var(--iron-light);padding:48px 0 24px}
.footer-inner{display:flex;justify-content:space-between;align-items:start;margin-bottom:32px;flex-wrap:wrap;gap:24px}
.footer-logo{font-size:1.2rem;font-weight:700;color:var(--gold);letter-spacing:.2em;margin-bottom:4px}
.footer-tagline{font-size:.75rem;color:var(--iron);letter-spacing:.2em}
.footer-links{display:flex;flex-wrap:wrap;gap:20px}
.footer-links a{font-size:.8rem;color:var(--iron);transition:color .2s;letter-spacing:.05em}
.footer-links a:hover{color:var(--gold)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding-top:20px;text-align:center;font-size:.75rem;color:var(--iron);line-height:1.8}
.footer-note{margin-top:8px;font-size:.7rem}
.footer-copy{margin-top:8px}

/* Responsive */
.sp-only{display:none}
@media(max-width:768px){
  .sp-only{display:inline}
  .hamburger{display:flex}
  .nav-list{
    display:none;flex-direction:column;position:absolute;top:60px;left:0;right:0;
    background:rgba(10,10,10,.98);padding:16px 24px;gap:12px;
    border-bottom:1px solid rgba(196,149,106,.15)
  }
  .nav-list.open{display:flex}
  .fv-title{font-size:2.5rem;letter-spacing:.2em}
  .fv-tagline{font-size:.95rem}
  .product-grid{grid-template-columns:1fr}
  .craftsman-content{grid-template-columns:1fr;text-align:center}
  .craftsman-portrait{max-width:240px;margin:0 auto}
  .craftsman-text blockquote{text-align:left}
  .section{padding:64px 0}
  .footer-inner{flex-direction:column}
  .footer-links{flex-direction:column;gap:12px}
}
@media(max-width:480px){
  .fv-title{font-size:2rem}
}