/* =========================================================
   DH — Vacuum Fittings & Smart Factory
   Premium industrial theme · navy + metallic silver + cyan
   ========================================================= */

:root{
  --bg-0:#ffffff;
  --bg-1:#f7f9fc;
  --bg-2:#eef2f8;
  --surface:#ffffff;
  --line:rgba(15,23,42,0.08);
  --line-2:rgba(15,23,42,0.16);
  --text:#0b1220;
  --text-dim:#475467;
  --text-mute:#6b7591;
  --accent:#2563eb;        /* primary blue */
  --accent-2:#1d4ed8;      /* deeper blue */
  --accent-soft:#dbeafe;   /* light blue tint */
  --accent-warm:#f59e0b;
  --silver:#94a3b8;
  --font-sans:'Inter','Noto Sans KR',system-ui,-apple-system,'Segoe UI',sans-serif;
  --font-display:'Space Grotesk','Inter','Noto Sans KR',sans-serif;
  --radius:14px;
  --radius-lg:22px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --header-h:74px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth;background:var(--bg-0)}
body{
  margin:0;padding:0;
  font-family:var(--font-sans);
  color:var(--text);
  background:var(--bg-0);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;background:none;border:0;color:inherit;cursor:pointer}

.container{max-width:1280px;margin:0 auto;padding:0 32px}
.section{padding:140px 0;position:relative}
@media (max-width:768px){
  .section{padding:90px 0}
}

/* ---------- Scroll Progress ---------- */
.scroll-progress{
  position:fixed;top:0;left:0;height:3px;width:0%;
  background:linear-gradient(90deg,var(--accent),var(--accent-2));
  z-index:1000;transition:width .12s linear;
  box-shadow:0 0 12px rgba(125,211,252,.6);
}

/* ---------- Header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;height:var(--header-h);
  z-index:100;
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  background:rgba(255,255,255,.7);
  border-bottom:1px solid transparent;
  transition:background .3s var(--ease), border-color .3s var(--ease), box-shadow .3s var(--ease);
}
.site-header.scrolled{background:rgba(255,255,255,.92);border-bottom-color:var(--line);box-shadow:0 4px 24px rgba(15,23,42,.04)}
.header-inner{
  max-width:1400px;margin:0 auto;padding:0 32px;height:100%;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0}
.brand-logo{display:flex;align-items:center}
.brand-text{display:flex;flex-direction:column;line-height:1}
.brand-text strong{font-family:'Noto Sans KR',var(--font-display);font-size:20px;font-weight:800;letter-spacing:0;color:var(--text)}
.brand-text em{font-style:normal;font-size:9px;letter-spacing:2.2px;color:var(--text-mute);margin-top:4px;font-weight:600}
.nav{display:flex;gap:32px}
.nav a{font-size:14px;font-weight:500;color:var(--text-dim);letter-spacing:.2px;position:relative;padding:6px 0;transition:color .25s}
.nav a::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform .3s var(--ease);border-radius:2px}
.nav a:hover{color:var(--text)}
.nav a:hover::after{transform:scaleX(1)}
.cta-btn{
  font-size:13px;font-weight:600;padding:11px 20px;border-radius:999px;
  background:linear-gradient(135deg,var(--accent),var(--accent-2));
  color:#fff;letter-spacing:.3px;
  box-shadow:0 6px 20px rgba(37,99,235,.28);
  transition:transform .25s var(--ease), box-shadow .25s var(--ease);
}
.cta-btn:hover{transform:translateY(-2px);box-shadow:0 12px 28px rgba(37,99,235,.4)}
.menu-toggle{display:none;flex-direction:column;gap:5px;padding:8px}
.menu-toggle span{width:22px;height:2px;background:var(--text);transition:transform .3s, opacity .3s;border-radius:2px}
@media (max-width:980px){
  .nav,.cta-btn{display:none}
  .menu-toggle{display:flex}
  .nav.open{
    display:flex;flex-direction:column;position:absolute;top:100%;left:0;right:0;
    background:rgba(255,255,255,.98);backdrop-filter:blur(20px);
    padding:24px 32px;border-bottom:1px solid var(--line);gap:18px;
    box-shadow:0 10px 30px rgba(15,23,42,.06);
  }
}

/* ---------- HERO ---------- */
.hero{
  min-height:100vh;
  display:flex;align-items:center;justify-content:center;
  position:relative;overflow:hidden;
  padding:calc(var(--header-h) + 40px) 32px 80px;
  background:
    radial-gradient(900px 500px at 75% 10%, rgba(37,99,235,.10), transparent 65%),
    radial-gradient(700px 400px at 15% 80%, rgba(59,130,246,.07), transparent 65%),
    linear-gradient(180deg,#ffffff 0%,#f6f9ff 100%);
}
.hero-bg{position:absolute;inset:0;z-index:0;overflow:hidden}
.hero-bg canvas{position:absolute;inset:0;width:100%;height:100%;opacity:.55}
.hero-grid{
  position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(37,99,235,.06) 1px,transparent 1px),
    linear-gradient(90deg,rgba(37,99,235,.06) 1px,transparent 1px);
  background-size:60px 60px;
  mask-image:radial-gradient(ellipse at center,#000 30%,transparent 75%);
  -webkit-mask-image:radial-gradient(ellipse at center,#000 30%,transparent 75%);
}
.hero-glow{position:absolute;width:600px;height:600px;border-radius:50%;filter:blur(110px);opacity:.35}
.hero-glow.g1{background:radial-gradient(circle,rgba(37,99,235,.4),transparent 60%);top:-200px;left:-200px;animation:drift 18s ease-in-out infinite alternate}
.hero-glow.g2{background:radial-gradient(circle,rgba(59,130,246,.32),transparent 60%);bottom:-200px;right:-200px;animation:drift 22s ease-in-out infinite alternate-reverse}
@keyframes drift{
  0%{transform:translate(0,0) scale(1)}
  100%{transform:translate(80px,-60px) scale(1.15)}
}

.hero-content{
  position:relative;z-index:1;text-align:center;max-width:1100px;width:100%;
}
.hero-tag{
  display:inline-flex;align-items:center;gap:10px;
  font-size:12px;letter-spacing:3px;text-transform:uppercase;
  padding:10px 18px;border-radius:999px;
  background:rgba(255,255,255,.85);border:1px solid var(--line);
  color:var(--text-dim);margin-bottom:32px;font-weight:600;
  box-shadow:0 4px 14px rgba(15,23,42,.04);
}
.hero-tag .dot{width:6px;height:6px;border-radius:50%;background:var(--accent);box-shadow:0 0 12px rgba(37,99,235,.6);animation:pulse 1.8s ease-in-out infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.4}}

.hero-title{
  font-family:var(--font-display);
  font-size:clamp(40px,7vw,92px);
  font-weight:700;line-height:1.05;letter-spacing:-1.5px;
  margin:0 0 28px;
}
.hero-title .line{display:block;overflow:hidden}
.hero-title em{
  font-style:normal;
  background:linear-gradient(135deg,var(--accent) 0%,#6366f1 50%,#0ea5e9 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  position:relative;
}
.hero-title em::after{
  content:"";position:absolute;left:0;right:0;bottom:-6px;height:3px;border-radius:3px;
  background:linear-gradient(90deg,transparent,var(--accent),transparent);
  transform:scaleX(0);transform-origin:left;animation:underline 1.6s 1.2s var(--ease) forwards;
}
@keyframes underline{to{transform:scaleX(1)}}

.hero-sub{
  font-size:clamp(15px,1.4vw,18px);color:var(--text-dim);
  max-width:680px;margin:0 auto 40px;line-height:1.8;
}
.hero-sub strong{color:var(--text);font-weight:700}

.hero-ctas{display:flex;justify-content:center;gap:14px;margin-bottom:64px;flex-wrap:wrap}
.btn{
  font-size:14px;font-weight:600;padding:15px 30px;border-radius:999px;
  letter-spacing:.4px;transition:transform .25s var(--ease), box-shadow .25s var(--ease), background .25s;
  display:inline-flex;align-items:center;gap:8px;
}
.btn.primary{
  background:linear-gradient(135deg,var(--accent),var(--accent-2));
  color:#fff;
  box-shadow:0 10px 28px rgba(37,99,235,.35);
}
.btn.primary:hover{transform:translateY(-3px);box-shadow:0 16px 38px rgba(37,99,235,.5)}
.btn.ghost{
  background:#ffffff;border:1px solid var(--line-2);color:var(--text);
  box-shadow:0 4px 14px rgba(15,23,42,.04);
}
.btn.ghost:hover{background:var(--accent-soft);border-color:var(--accent);color:var(--accent-2)}

.hero-stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
  max-width:920px;margin:0 auto;
  padding:32px 0;border-top:1px solid var(--line-2);border-bottom:1px solid var(--line-2);
}
.hero-stats > div{display:flex;flex-direction:column;align-items:center;gap:6px;position:relative}
.hero-stats > div:not(:last-child)::after{content:"";position:absolute;right:-12px;top:50%;transform:translateY(-50%);width:1px;height:40px;background:var(--line-2)}
.hero-stats strong{font-family:var(--font-display);font-size:clamp(28px,3.2vw,44px);font-weight:700;color:var(--text);line-height:1;background:linear-gradient(135deg,var(--accent),var(--accent-2));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-stats .suffix{font-size:.55em;color:var(--accent);margin-left:2px;font-weight:600}
.hero-stats span{font-size:11px;letter-spacing:1.5px;color:var(--text-mute);text-transform:uppercase;line-height:1.5;text-align:center;font-weight:500}
@media (max-width:768px){
  .hero-stats{grid-template-columns:repeat(2,1fr);gap:32px 16px}
  .hero-stats > div::after{display:none !important}
}

.hero-scroll{
  position:absolute;bottom:32px;left:50%;transform:translateX(-50%);
  display:flex;flex-direction:column;align-items:center;gap:10px;
  font-size:10px;letter-spacing:3px;color:var(--text-mute);
}
.hero-scroll span{width:1px;height:40px;background:linear-gradient(180deg,var(--accent),transparent);animation:scrollHint 2s ease-in-out infinite}
@keyframes scrollHint{0%{transform:translateY(-10px);opacity:0}50%{opacity:1}100%{transform:translateY(10px);opacity:0}}

/* ---------- Common Section Heads ---------- */
.eyebrow{
  display:inline-block;font-size:11px;letter-spacing:3.5px;color:var(--accent);
  text-transform:uppercase;font-weight:700;margin-bottom:18px;
}
.section-title{
  font-family:'Noto Sans KR',var(--font-display);
  font-size:clamp(32px,4.5vw,56px);font-weight:800;
  line-height:1.15;letter-spacing:-1px;margin:0 0 24px;color:var(--text);
}
.section-title.light{color:var(--text)}
.section-head{text-align:center;margin-bottom:80px;max-width:820px;margin-left:auto;margin-right:auto}
.section-head .head-sub{color:var(--text-dim);font-size:16px;margin-top:16px}
.lead{font-size:18px;color:var(--text);line-height:1.75;margin-bottom:18px;font-weight:500}

/* ---------- Two-column layout ---------- */
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:90px;align-items:center}
.two-col.reverse .col-left{order:1}
.two-col.reverse .col-right{order:2}
@media (max-width:980px){
  .two-col{grid-template-columns:1fr;gap:60px}
  .two-col.reverse .col-left{order:2}
  .two-col.reverse .col-right{order:1}
}

/* ---------- About ---------- */
.about p{color:var(--text-dim);font-size:15.5px;margin-bottom:18px}
.about strong{color:var(--text);font-weight:700}
.key-points{list-style:none;padding:0;margin:36px 0 0;display:flex;flex-direction:column;gap:14px}
.key-points li{display:flex;gap:20px;align-items:flex-start;padding:18px 22px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);transition:border-color .25s, transform .25s var(--ease), box-shadow .25s; box-shadow:0 1px 2px rgba(15,23,42,.03)}
.key-points li:hover{border-color:var(--accent);transform:translateX(4px);box-shadow:0 10px 30px rgba(37,99,235,.08)}
.kp-num{font-family:var(--font-display);font-size:22px;color:var(--accent);font-weight:800;line-height:1;min-width:32px}
.key-points strong{font-size:15.5px;color:var(--text);display:block;margin-bottom:4px;font-weight:700}
.key-points p{margin:0;color:var(--text-mute);font-size:13.5px}

.img-card{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;
  border:1px solid var(--line);background:#fff;
  box-shadow:0 24px 60px -20px rgba(15,23,42,.18);
}
.img-card img{width:100%;height:520px;object-fit:cover;display:block;background:#f1f5f9}
.img-card-meta{
  position:absolute;left:24px;bottom:24px;right:24px;
  display:flex;justify-content:space-between;align-items:flex-end;
  padding:16px 20px;border-radius:12px;
  background:rgba(255,255,255,.95);backdrop-filter:blur(10px);
  border:1px solid var(--line);box-shadow:0 8px 24px rgba(15,23,42,.06);
}
.img-card-meta span{font-size:11px;letter-spacing:2.5px;color:var(--accent);font-weight:700}
.img-card-meta em{font-style:normal;font-size:12px;color:var(--text-mute);font-weight:500}
.floating-card{
  position:relative;margin-top:-40px;margin-left:auto;margin-right:24px;
  width:calc(100% - 48px);
  background:#fff;
  border:1px solid var(--line);border-radius:var(--radius);
  padding:22px 26px;
  box-shadow:0 20px 50px -10px rgba(15,23,42,.12);
  display:flex;flex-direction:column;gap:12px;
}
.fc-row{display:flex;justify-content:space-between;align-items:center;font-size:13px;gap:14px}
.fc-row span{color:var(--text-mute);letter-spacing:1px;text-transform:uppercase;font-size:11px;font-weight:600;flex-shrink:0}
.fc-row strong{color:var(--text);font-weight:600;text-align:right}

/* ---------- Vision ---------- */
.vision{background:linear-gradient(180deg,#fff,var(--bg-1) 50%,#fff)}
.vision-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
@media (max-width:980px){.vision-grid{grid-template-columns:1fr}}
.vision-card{
  padding:40px 32px;border-radius:var(--radius-lg);
  background:#fff;
  border:1px solid var(--line);
  position:relative;overflow:hidden;
  transition:transform .35s var(--ease), border-color .35s, box-shadow .35s;
  box-shadow:0 1px 2px rgba(15,23,42,.03);
}
.vision-card::before{
  content:"";position:absolute;inset:0;background:radial-gradient(600px circle at var(--mx,50%) var(--my,0%),rgba(37,99,235,.08),transparent 40%);
  opacity:0;transition:opacity .35s;pointer-events:none;
}
.vision-card:hover{transform:translateY(-6px);border-color:var(--accent);box-shadow:0 24px 50px -10px rgba(37,99,235,.18)}
.vision-card:hover::before{opacity:1}
.vision-card.highlight{
  background:linear-gradient(180deg,var(--accent-soft),#fff);
  border-color:rgba(37,99,235,.25);
}
.vc-icon{width:56px;height:56px;border-radius:14px;background:var(--accent-soft);display:flex;align-items:center;justify-content:center;color:var(--accent);margin-bottom:24px}
.vc-icon svg{width:30px;height:30px}
.vision-card h3{font-family:'Noto Sans KR',var(--font-display);font-size:22px;font-weight:800;margin:0 0 8px;letter-spacing:-.3px;color:var(--text)}
.vision-card h3 em{font-style:normal;display:block;font-size:11px;letter-spacing:2.5px;color:var(--text-mute);margin-top:6px;font-weight:600}
.vc-headline{font-size:18px;color:var(--accent);margin:16px 0 14px;font-weight:700;font-family:var(--font-display)}
.vc-body{color:var(--text-dim);font-size:14.5px;line-height:1.75;margin:0}

/* ---------- CEO (centered, no photo) ---------- */
.ceo{background:var(--bg-1)}
.ceo .container{max-width:880px}
.ceo .section-head{text-align:left;margin-left:0;margin-right:0;margin-bottom:0;max-width:none}
.ceo .lead{font-size:20px;color:var(--text);font-weight:600;margin-bottom:24px}
.ceo p{color:var(--text-dim);margin-bottom:18px;font-size:16px;line-height:1.85}
.ceo strong{color:var(--text);font-weight:700}
.ceo-message{
  background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:60px clamp(28px,5vw,72px);
  box-shadow:0 20px 50px -20px rgba(15,23,42,.08);
  margin-top:48px;position:relative;
}
.ceo-message::before{
  content:"\201C";position:absolute;top:-10px;left:36px;
  font-family:'Georgia',serif;font-size:160px;line-height:1;
  color:var(--accent);opacity:.15;font-weight:700;
}
.ceo-meta{display:flex;flex-direction:column;gap:8px;margin-top:40px;padding-top:28px;border-top:1px solid var(--line)}
.ceo-meta div{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.ceo-meta span{font-size:11px;letter-spacing:2px;color:var(--text-mute);text-transform:uppercase;font-weight:600}
.ceo-meta strong{font-size:18px;color:var(--text);font-weight:700;font-family:'Noto Sans KR',var(--font-display)}

/* ---------- Products ---------- */
.products{background:#fff}

/* Product tier scaffolding */
.product-tier{margin-bottom:80px}
.product-tier:last-child{margin-bottom:0}
.tier-head{margin-bottom:36px;max-width:760px}
.tier-rank{
  display:inline-block;font-size:11px;letter-spacing:3.5px;
  color:var(--accent);font-weight:700;text-transform:uppercase;
  padding:6px 14px;border:1px solid rgba(37,99,235,.25);background:var(--accent-soft);
  border-radius:999px;margin-bottom:18px;
}
.tier-title{
  font-family:'Noto Sans KR',var(--font-display);
  font-size:clamp(26px,3vw,38px);font-weight:800;
  letter-spacing:-.5px;margin:0 0 12px;color:var(--text);
}
.tier-title.small{font-size:clamp(22px,2.4vw,28px)}
.tier-desc{color:var(--text-dim);font-size:15px;line-height:1.7;margin:0}
.tier-row{display:grid;grid-template-columns:1fr 1fr;gap:40px}
@media (max-width:980px){.tier-row{grid-template-columns:1fr;gap:60px}}
.tier-block{display:flex;flex-direction:column}

.product-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:20px;
  grid-auto-rows:300px;
}
/* Clamp grid: hero card left (2 rows tall), 3 thumbs stacked right */
.product-grid.clamp-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr;
  grid-template-rows:300px 300px;
  gap:20px;
}
.product-grid.clamp-grid .product-card.large{grid-column:1;grid-row:1 / span 2}
.product-grid.clamp-grid .product-card:nth-child(2){grid-column:2;grid-row:1}
.product-grid.clamp-grid .product-card:nth-child(3){grid-column:3;grid-row:1}
.product-grid.clamp-grid .product-card:nth-child(4){grid-column:2 / span 2;grid-row:2}
.product-grid.pair{grid-template-columns:1fr 1fr;grid-auto-rows:440px}
.product-grid.single{grid-template-columns:1fr;grid-auto-rows:360px}
.product-grid.pair .pc-body{padding:36px 28px 26px}
.product-grid.pair img{object-position:center 20%}

/* Catalog CTA block (linking to full /products.html) */
.catalog-cta{
  margin-top:60px;
  background:linear-gradient(135deg,var(--accent-soft),#fff);
  border:1px solid rgba(37,99,235,.18);
  border-radius:var(--radius-lg);
  padding:48px clamp(28px,5vw,56px);
  display:grid;grid-template-columns:1.6fr auto;gap:32px;align-items:center;
}
.catalog-cta .cta-text .eyebrow{margin-bottom:10px}
.catalog-cta h3{
  font-family:'Noto Sans KR',var(--font-display);
  font-size:clamp(22px,2.6vw,30px);font-weight:800;
  color:var(--text);margin:0 0 10px;letter-spacing:-.5px;line-height:1.3;
}
.catalog-cta p{margin:0;color:var(--text-dim);font-size:15px;line-height:1.7;max-width:640px}
.catalog-cta-btn{white-space:nowrap}
@media (max-width:780px){
  .catalog-cta{grid-template-columns:1fr;text-align:left}
}
.product-card.wide-card .pc-body{
  background:linear-gradient(90deg,rgba(255,255,255,.98) 0%,rgba(255,255,255,.92) 45%,rgba(255,255,255,0) 75%);
  top:0;bottom:0;width:55%;padding:40px 36px;display:flex;flex-direction:column;justify-content:center;
}
.product-card.wide-card img{object-position:right center}
.product-card.wide-card.clamp-card img{object-position:right 30%}
@media (max-width:768px){
  .product-card.wide-card .pc-body{
    width:100%;background:linear-gradient(180deg,transparent 30%,rgba(255,255,255,.97) 65%);
    top:auto;bottom:0;padding:32px 24px 22px;
  }
}
@media (max-width:980px){
  .product-grid.clamp-grid{grid-template-columns:repeat(2,1fr);grid-template-rows:repeat(3,260px)}
  .product-grid.clamp-grid .product-card.large,
  .product-grid.clamp-grid .product-card:nth-child(2),
  .product-grid.clamp-grid .product-card:nth-child(3),
  .product-grid.clamp-grid .product-card:nth-child(4){grid-column:auto;grid-row:auto}
  .product-grid.clamp-grid .product-card.large{grid-column:1 / -1}
}
@media (max-width:640px){
  .product-grid.clamp-grid{grid-template-columns:1fr;grid-template-rows:repeat(4,240px)}
  .product-grid.pair{grid-template-columns:1fr;grid-auto-rows:240px}
  .product-grid.clamp-grid .product-card.large{grid-column:auto}
}
.product-card{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;
  border:1px solid var(--line);background:#f1f5f9;
  transition:transform .4s var(--ease), box-shadow .4s, border-color .3s;
  box-shadow:0 1px 2px rgba(15,23,42,.04);
}
.product-card.large{grid-row:span 2}
.product-card.wide{grid-column:span 2}
.product-card img{width:100%;height:100%;object-fit:cover;transition:transform .8s var(--ease)}
.product-card:hover{transform:translateY(-4px);box-shadow:0 24px 50px -10px rgba(15,23,42,.18);border-color:var(--accent)}
.product-card:hover img{transform:scale(1.06)}
.pc-body{
  position:absolute;left:0;right:0;bottom:0;
  padding:32px 24px 22px;
  background:linear-gradient(180deg,transparent,rgba(255,255,255,.97) 55%);
}
.pc-tag{font-size:10.5px;letter-spacing:2.5px;color:var(--accent);font-weight:700}
.pc-body h3{font-family:'Noto Sans KR',var(--font-display);font-size:20px;font-weight:700;margin:8px 0 6px;letter-spacing:-.3px;color:var(--text)}
.pc-body p{margin:0;font-size:13px;color:var(--text-dim);line-height:1.6;font-weight:500}
.pc-body ul{margin:10px 0 0;padding:0;list-style:none;display:flex;flex-direction:column;gap:4px}
.pc-body ul li{font-size:12.5px;color:var(--text-mute);padding-left:14px;position:relative}
.pc-body ul li::before{content:"";position:absolute;left:0;top:9px;width:6px;height:2px;background:var(--accent);border-radius:2px}
@media (max-width:980px){
  .product-grid{grid-template-columns:repeat(2,1fr);grid-auto-rows:260px}
  .product-card.large,.product-card.wide{grid-row:auto;grid-column:auto}
}
@media (max-width:640px){
  .product-grid{grid-template-columns:1fr;grid-auto-rows:240px}
}

/* ---------- Smart Factory ---------- */
.smart-factory{background:var(--bg-1)}
.smart-factory .section-title{font-family:'Noto Sans KR',var(--font-display)}
.sf-hero{display:grid;grid-template-columns:1.6fr 1fr;gap:32px;margin-bottom:80px;align-items:stretch}
@media (max-width:980px){.sf-hero{grid-template-columns:1fr}}
.sf-img{position:relative;border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line);background:#0b1220;box-shadow:0 20px 50px -20px rgba(15,23,42,.18)}
.sf-img img{width:100%;height:100%;min-height:420px;object-fit:cover;display:block;opacity:1}
.sf-img-badge{
  position:absolute;top:20px;left:20px;
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 14px;border-radius:999px;
  background:rgba(255,255,255,.95);backdrop-filter:blur(10px);
  font-size:12px;color:var(--text);letter-spacing:.4px;font-weight:600;
  border:1px solid var(--line);
}
.live-dot{width:8px;height:8px;border-radius:50%;background:#22c55e;box-shadow:0 0 12px #22c55e;animation:pulse 1.4s infinite}
.sf-stack{display:grid;grid-template-rows:repeat(4,1fr);gap:14px}
.sf-item{
  padding:24px;border-radius:var(--radius);border:1px solid var(--line);
  background:#fff;
  display:flex;flex-direction:column;justify-content:center;gap:6px;
  transition:border-color .25s, transform .25s var(--ease), box-shadow .25s;
  box-shadow:0 1px 2px rgba(15,23,42,.03);
}
.sf-item:hover{border-color:var(--accent);transform:translateX(4px);box-shadow:0 10px 28px rgba(37,99,235,.1)}
.sf-item strong{font-family:var(--font-display);font-size:24px;color:var(--accent);font-weight:800;letter-spacing:.5px}
.sf-item span{font-size:13px;color:var(--text-dim);font-weight:500}

.sf-features{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
@media (max-width:980px){.sf-features{grid-template-columns:repeat(2,1fr)}}
@media (max-width:640px){.sf-features{grid-template-columns:1fr}}
.sf-feature{
  padding:32px 26px;border-radius:var(--radius-lg);
  background:#fff;
  border:1px solid var(--line);
  transition:transform .3s var(--ease), border-color .3s, box-shadow .3s;
  box-shadow:0 1px 2px rgba(15,23,42,.03);
}
.sf-feature:hover{transform:translateY(-4px);border-color:var(--accent);box-shadow:0 20px 40px -10px rgba(37,99,235,.12)}
.sf-num{font-family:var(--font-display);font-size:32px;font-weight:800;color:var(--accent);line-height:1;margin-bottom:20px}
.sf-feature h4{font-family:'Noto Sans KR',var(--font-display);font-size:17px;font-weight:700;margin:0 0 10px;color:var(--text)}
.sf-feature p{margin:0;color:var(--text-dim);font-size:14px;line-height:1.7}

/* ---------- History (Timeline) ---------- */
.history{background:#fff}
.timeline{list-style:none;padding:0;margin:0;position:relative;max-width:880px;margin:0 auto}
.timeline::before{content:"";position:absolute;left:130px;top:8px;bottom:8px;width:2px;background:linear-gradient(180deg,transparent,var(--accent-soft) 10%,var(--accent-soft) 90%,transparent)}
.timeline li{display:grid;grid-template-columns:130px 1fr;gap:40px;padding:22px 0;position:relative}
.timeline li::before{
  content:"";position:absolute;left:125px;top:32px;width:11px;height:11px;
  border-radius:50%;background:#fff;border:2px solid var(--accent);
  box-shadow:0 0 0 4px rgba(37,99,235,.12);
}
.t-year{font-family:var(--font-display);font-size:22px;font-weight:800;color:var(--accent);letter-spacing:-.3px;text-align:right;padding-right:24px}
.timeline strong{display:block;font-size:17px;color:var(--text);font-weight:700;margin-bottom:6px;font-family:'Noto Sans KR',var(--font-display)}
.timeline p{margin:0;color:var(--text-dim);font-size:14.5px;line-height:1.7}
.timeline li:last-child .t-year{color:var(--accent-warm)}
.timeline li:last-child::before{border-color:var(--accent-warm);box-shadow:0 0 0 4px rgba(245,158,11,.15)}
@media (max-width:640px){
  .timeline::before{left:8px}
  .timeline li{grid-template-columns:1fr;gap:8px;padding-left:32px}
  .timeline li::before{left:4px;top:32px}
  .t-year{text-align:left;padding-right:0}
}

/* ---------- Contact / Location ---------- */
.contact{background:var(--bg-1)}
.contact-grid{display:grid;grid-template-columns:1.4fr 1fr;gap:32px}
@media (max-width:980px){.contact-grid{grid-template-columns:1fr}}
.map-wrap{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;
  border:1px solid var(--line);min-height:560px;background:#fff;
  box-shadow:0 20px 40px -20px rgba(15,23,42,.1);
}
.map-wrap iframe{width:100%;height:100%;min-height:560px;border:0}
.map-link{
  position:absolute;left:24px;bottom:24px;
  padding:12px 22px;border-radius:999px;
  background:#fff;
  border:1px solid var(--line-2);color:var(--text);font-size:13px;font-weight:600;
  transition:background .25s, border-color .25s, color .25s, transform .2s;
  box-shadow:0 8px 24px rgba(15,23,42,.08);
}
.map-link:hover{background:var(--accent);color:#fff;border-color:var(--accent);transform:translateY(-2px)}

.contact-info{
  padding:40px 36px;border-radius:var(--radius-lg);
  background:#fff;
  border:1px solid var(--line);
  display:flex;flex-direction:column;gap:28px;
  box-shadow:0 1px 2px rgba(15,23,42,.03);
}
.ci-row{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.ci-block{display:flex;flex-direction:column;gap:6px}
.ci-label{font-size:10.5px;letter-spacing:2.5px;color:var(--accent);font-weight:700;text-transform:uppercase}
.ci-value{font-size:16px;color:var(--text);margin:0;font-weight:600;line-height:1.5}
.ci-value.link{color:var(--text);text-decoration:none;transition:color .2s;display:inline-block}
.ci-value.link:hover{color:var(--accent)}
.ci-en{font-size:12.5px;color:var(--text-mute);margin:0;line-height:1.55;font-weight:500}

/* ---------- Footer ---------- */
.site-footer{
  padding:72px 0 32px;border-top:1px solid var(--line);
  background:#fff;
  margin-top:0;
}
.footer-inner{display:grid;grid-template-columns:1.2fr 2fr;gap:60px;padding-bottom:48px;border-bottom:1px solid var(--line)}
@media (max-width:780px){.footer-inner{grid-template-columns:1fr;gap:40px}}
.ft-brand strong{font-family:'Noto Sans KR',var(--font-display);font-size:22px;font-weight:800;color:var(--text);letter-spacing:0}
.ft-brand strong em{font-style:normal;color:var(--accent);margin-left:8px;font-family:var(--font-display)}
.ft-brand p{color:var(--text-mute);font-size:13px;margin:8px 0 0;letter-spacing:.4px;font-weight:500}
.ft-cols{display:grid;grid-template-columns:repeat(3,1fr);gap:32px}
@media (max-width:640px){.ft-cols{grid-template-columns:repeat(2,1fr)}}
.ft-cols > div{display:flex;flex-direction:column;gap:12px}
.ft-cols span{font-size:11px;letter-spacing:2.5px;color:var(--text-mute);text-transform:uppercase;font-weight:700;margin-bottom:4px}
.ft-cols a{font-size:13.5px;color:var(--text-dim);transition:color .2s;font-weight:500}
.ft-cols a:hover{color:var(--accent)}
.ft-bottom{padding-top:24px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;font-size:12px;color:var(--text-mute);font-weight:500}

/* ---------- Reveal animations ---------- */
[data-reveal]{opacity:0;transform:translateY(36px);transition:opacity .9s var(--ease), transform .9s var(--ease)}
[data-reveal].in{opacity:1;transform:none}
[data-reveal].in.delay-1{transition-delay:.1s}
[data-reveal].in.delay-2{transition-delay:.2s}
.hero-title .line{opacity:0;transform:translateY(40px);transition:opacity .9s var(--ease), transform .9s var(--ease)}
.hero-title .line.in{opacity:1;transform:none}