/* === JT Solution — webuild-grade static site === */
:root{
  --bg:#0a0a0b;
  --bg-2:#0f1012;
  --surface:#15161a;
  --surface-2:#1c1d22;
  --line:rgba(255,255,255,.08);
  --line-2:rgba(255,255,255,.14);
  --fg:#f4f4f5;
  --fg-dim:#a1a1aa;
  --fg-mute:#6b6b75;
  --accent:#ff5b1f;
  --accent-2:#ffb703;
  --grad:linear-gradient(135deg,#ff5b1f 0%,#ffb703 100%);
  --radius:18px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --maxw:1280px;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;overflow-x:hidden}
body{
  background:var(--bg);
  color:var(--fg);
  font-family:'Pretendard','Inter',system-ui,-apple-system,Segoe UI,Roboto,'Apple SD Gothic Neo','Noto Sans KR',sans-serif;
  font-weight:400;
  line-height:1.55;
  letter-spacing:-.01em;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
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:var(--maxw);margin:0 auto;padding:0 32px}

/* ===== NAV ===== */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:50;
  display:flex;align-items:center;gap:32px;
  padding:20px 32px;
  backdrop-filter:blur(18px) saturate(160%);
  -webkit-backdrop-filter:blur(18px) saturate(160%);
  background:linear-gradient(180deg,rgba(10,10,11,.75),rgba(10,10,11,.35));
  border-bottom:1px solid transparent;
  transition:.4s var(--ease);
}
.nav.scrolled{
  border-bottom-color:var(--line);
  padding:14px 32px;
  background:linear-gradient(180deg,rgba(10,10,11,.92),rgba(10,10,11,.78));
}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;letter-spacing:-.02em}
.brand-mark{
  display:inline-flex;width:34px;height:34px;align-items:center;justify-content:center;
  background:var(--grad);color:#0a0a0b;border-radius:9px;font-weight:800;
  font-family:'Space Grotesk',sans-serif;font-size:14px;
}
.brand-name{font-size:17px;font-family:'Space Grotesk',sans-serif}
.nav-links{display:flex;gap:28px;margin-left:auto;font-size:14px;color:var(--fg-dim)}
.nav-links a{position:relative;transition:.2s}
.nav-links a:hover{color:var(--fg)}
.nav-links a::after{content:"";position:absolute;left:0;bottom:-6px;width:0;height:1px;background:var(--accent);transition:.3s var(--ease)}
.nav-links a:hover::after{width:100%}
.nav-cta{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 18px;border:1px solid var(--line-2);border-radius:999px;
  font-size:13.5px;transition:.3s var(--ease);
}
.nav-cta:hover{background:var(--fg);color:var(--bg);border-color:var(--fg)}
.nav-cta span{transition:transform .3s var(--ease)}
.nav-cta:hover span{transform:translateX(4px)}
.nav-burger{display:none;flex-direction:column;gap:5px;padding:8px}
.nav-burger span{width:22px;height:1.5px;background:var(--fg);transition:.3s}

/* ===== HERO ===== */
.hero{
  position:relative;min-height:100vh;display:flex;flex-direction:column;justify-content:center;
  padding:140px 32px 80px;overflow:hidden;
  background:radial-gradient(ellipse 80% 50% at 50% 0%,rgba(255,91,31,.08),transparent 60%),
             radial-gradient(ellipse 60% 50% at 80% 80%,rgba(255,183,3,.05),transparent 60%),
             var(--bg);
}
.hero-grid{
  position:absolute;inset:0;
  background-image:
    linear-gradient(var(--line) 1px,transparent 1px),
    linear-gradient(90deg,var(--line) 1px,transparent 1px);
  background-size:80px 80px;
  mask-image:radial-gradient(ellipse 80% 70% at 50% 40%,#000 30%,transparent 80%);
  -webkit-mask-image:radial-gradient(ellipse 80% 70% at 50% 40%,#000 30%,transparent 80%);
  opacity:.7;
}
.hero-inner{position:relative;max-width:var(--maxw);margin:0 auto;width:100%}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  padding:8px 16px;border:1px solid var(--line-2);border-radius:999px;
  font-size:13px;color:var(--fg-dim);font-family:'Space Grotesk',sans-serif;
  margin-bottom:36px;
}
.eyebrow .dot{width:7px;height:7px;border-radius:50%;background:var(--accent);box-shadow:0 0 12px var(--accent);animation:pulse 2s infinite}
@keyframes pulse{50%{opacity:.4}}

.hero-title{
  font-family:'Space Grotesk','Pretendard',sans-serif;
  font-size:clamp(48px,9vw,128px);
  line-height:.96;letter-spacing:-.045em;font-weight:600;
  margin-bottom:36px;
}
.hero-title em{font-style:italic;font-weight:500;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.line{display:block;overflow:hidden;padding-bottom:.06em}
.line>span{display:inline-block;transform:translateY(110%);animation:rise .9s var(--ease) forwards}
.line:nth-child(2)>span{animation-delay:.12s}
.line:nth-child(3)>span{animation-delay:.24s}
@keyframes rise{to{transform:translateY(0)}}

.hero-sub{font-size:clamp(16px,1.4vw,19px);color:var(--fg-dim);max-width:620px;margin-bottom:44px;opacity:0;animation:fade 1s .6s var(--ease) forwards}
@keyframes fade{to{opacity:1}}

.hero-cta{display:flex;gap:14px;flex-wrap:wrap;opacity:0;animation:fade 1s .8s var(--ease) forwards}
.btn{
  display:inline-flex;align-items:center;gap:10px;
  padding:16px 28px;border-radius:999px;font-size:15px;font-weight:500;
  transition:.3s var(--ease);
}
.btn span{transition:transform .3s var(--ease)}
.btn:hover span{transform:translateX(5px)}
.btn-primary{background:var(--fg);color:var(--bg)}
.btn-primary:hover{background:var(--accent);color:#fff}
.btn-ghost{border:1px solid var(--line-2);color:var(--fg)}
.btn-ghost:hover{border-color:var(--fg);background:rgba(255,255,255,.04)}
.btn.big{padding:20px 36px;font-size:16px}

.hero-meta{
  display:grid;grid-template-columns:repeat(4,1fr);gap:32px;
  margin-top:90px;padding-top:36px;border-top:1px solid var(--line);
  opacity:0;animation:fade 1s 1s var(--ease) forwards;
}
.hero-meta>div{display:flex;flex-direction:column;gap:6px}
.hero-meta b{font-family:'Space Grotesk',sans-serif;font-size:clamp(28px,3.2vw,42px);font-weight:600;letter-spacing:-.02em}
.hero-meta span{font-size:13px;color:var(--fg-mute)}

.hero-marquee{
  position:absolute;bottom:0;left:0;right:0;
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  padding:18px 0;overflow:hidden;background:rgba(0,0,0,.2);
}
.track{display:flex;gap:42px;white-space:nowrap;animation:scroll 6s linear infinite;color:var(--fg-mute);font-family:'Space Grotesk',sans-serif;font-size:14px;letter-spacing:.04em;text-transform:uppercase;will-change:transform}
@keyframes scroll{to{transform:translateX(-50%)}}

/* ===== SECTIONS ===== */
section{padding:140px 0;position:relative;scroll-margin-top:72px}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:start}
.section-tag{
  display:inline-block;font-family:'Space Grotesk',sans-serif;
  font-size:13px;color:var(--accent);letter-spacing:.12em;text-transform:uppercase;
  margin-bottom:20px;
}
.section-title{
  font-family:'Space Grotesk','Pretendard',sans-serif;
  font-size:clamp(32px,5vw,68px);line-height:1.04;letter-spacing:-.035em;font-weight:600;
  margin-bottom:24px;
}
.section-desc{color:var(--fg-dim);font-size:17px;max-width:640px}
.section-head{margin-bottom:80px;max-width:780px}

/* === ABOUT === */
.about{border-top:1px solid var(--line)}
.lead{font-size:19px;color:var(--fg-dim);margin-bottom:32px}
.lead em{color:var(--fg);font-style:normal;font-weight:600}
.ceo{
  padding:28px;border-left:2px solid var(--accent);
  background:rgba(255,91,31,.04);border-radius:0 12px 12px 0;
  font-size:16px;color:var(--fg-dim);line-height:1.7;
}
.ceo span{display:block;margin-top:14px;color:var(--fg);font-weight:600;font-size:14px}
.value-stack{display:flex;flex-direction:column;gap:18px}
.value{
  padding:32px;border:1px solid var(--line);border-radius:var(--radius);
  background:var(--surface);transition:.4s var(--ease);
  position:relative;overflow:hidden;
}
.value::before{content:"";position:absolute;inset:0;background:var(--grad);opacity:0;transition:.4s var(--ease)}
.value:hover{transform:translateY(-4px);border-color:var(--line-2)}
.v-num{font-family:'Space Grotesk',sans-serif;font-size:13px;color:var(--accent);letter-spacing:.18em;margin-bottom:14px;font-weight:600}
.value h3{font-size:24px;font-weight:600;margin-bottom:10px;letter-spacing:-.02em}
.value p{color:var(--fg-dim);font-size:15px}

/* === OVERVIEW === */
.overview{padding:80px 0;border-top:1px solid var(--line);background:var(--bg-2)}
.ov-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line)}
.ov-item{padding:28px;background:var(--bg-2);display:flex;flex-direction:column;gap:8px;transition:.3s}
.ov-item:hover{background:var(--surface)}
.ov-item span{font-size:12px;color:var(--fg-mute);font-family:'Space Grotesk',sans-serif;text-transform:uppercase;letter-spacing:.1em}
.ov-item b{font-size:15px;font-weight:500;color:var(--fg)}

/* === HISTORY TIMELINE === */
.history{background:var(--bg-2);border-top:1px solid var(--line)}
.timeline{list-style:none;position:relative;padding-left:0}
.timeline::before{
  content:"";position:absolute;left:80px;top:0;bottom:0;width:1px;background:var(--line);
}
.t-item{display:grid;grid-template-columns:160px 1fr;gap:48px;padding:36px 0;border-bottom:1px solid var(--line);position:relative}
.t-item::before{
  content:"";position:absolute;left:74px;top:48px;width:13px;height:13px;border-radius:50%;
  background:var(--bg-2);border:2px solid var(--fg-mute);transition:.3s var(--ease);
}
.t-item:hover::before{border-color:var(--accent);box-shadow:0 0 0 6px rgba(255,91,31,.12)}
.t-item.highlight::before{background:var(--accent);border-color:var(--accent);box-shadow:0 0 22px var(--accent)}
.t-year{font-family:'Space Grotesk',sans-serif;font-size:38px;font-weight:600;letter-spacing:-.03em;color:var(--fg)}
.t-item.highlight .t-year{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.t-body h4{font-size:14px;color:var(--fg-mute);font-family:'Space Grotesk',sans-serif;text-transform:uppercase;letter-spacing:.14em;margin-bottom:16px;font-weight:500}
.t-body ul{list-style:none;display:flex;flex-direction:column;gap:8px}
.t-body li{color:var(--fg-dim);font-size:16px;padding-left:18px;position:relative}
.t-body li::before{content:"›";position:absolute;left:0;color:var(--accent)}
.t-body li b{color:var(--fg)}

/* === CAPABILITY === */
.capability{border-top:1px solid var(--line)}
.cap-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.cap-card{
  position:relative;border-radius:var(--radius);overflow:hidden;
  padding:32px;min-height:380px;
  background:var(--surface);border:1px solid var(--line);
  display:flex;flex-direction:column;justify-content:flex-end;
  transition:.5s var(--ease);isolation:isolate;
}
.cap-card::before{
  content:"";position:absolute;inset:0;
  background-image:var(--bg);background-size:cover;background-position:center;
  opacity:.35;transition:.6s var(--ease);z-index:-2;
}
.cap-card::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(to top,rgba(10,10,11,.95) 30%,rgba(10,10,11,.5) 60%,rgba(10,10,11,.2));
  z-index:-1;
}
.cap-card:hover{transform:translateY(-6px);border-color:var(--line-2)}
.cap-card:hover::before{opacity:.55;transform:scale(1.05)}
.cap-card.big{grid-column:span 2;min-height:460px}
.cap-meta{display:flex;justify-content:space-between;font-family:'Space Grotesk',sans-serif;font-size:12px;letter-spacing:.14em;color:var(--fg-mute);text-transform:uppercase;margin-bottom:auto;padding-bottom:24px}
.cap-card h3{font-size:clamp(22px,2vw,30px);font-weight:600;letter-spacing:-.02em;margin-bottom:14px;line-height:1.2}
.cap-card p{color:var(--fg-dim);font-size:15px;max-width:480px}

.equip-table{margin-top:60px;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);overflow:hidden}
.equip-table summary{padding:24px 32px;cursor:pointer;display:flex;justify-content:space-between;align-items:center;font-weight:500;list-style:none}
.equip-table summary::-webkit-details-marker{display:none}
.equip-table summary span{transition:.3s}
.equip-table[open] summary span{transform:rotate(180deg)}
.equip-table summary:hover{background:var(--surface-2)}
.table-wrap{overflow-x:auto;border-top:1px solid var(--line)}
.equip-table table{width:100%;border-collapse:collapse;font-size:14px}
.equip-table th,.equip-table td{text-align:left;padding:14px 32px;border-bottom:1px solid var(--line)}
.equip-table th{color:var(--fg-mute);font-weight:500;font-family:'Space Grotesk',sans-serif;font-size:12px;letter-spacing:.1em;text-transform:uppercase;background:var(--surface-2)}
.equip-table tr:last-child td{border-bottom:0}
.equip-table tr:hover td{background:var(--surface-2)}
@media (max-width:760px){
  .equip-table summary{padding:18px 18px}
  .table-wrap{overflow-x:visible}
  .equip-table table, .equip-table thead, .equip-table tbody, .equip-table tr, .equip-table td{display:block;width:100%}
  .equip-table thead{display:none}
  .equip-table tr{padding:14px 18px;border-bottom:1px solid var(--line);display:grid;grid-template-columns:auto 1fr;gap:4px 14px}
  .equip-table tr:last-child{border-bottom:0}
  .equip-table td{border:0;padding:0;font-size:13.5px;line-height:1.5}
  .equip-table td:nth-child(1){grid-column:1 / -1;font-family:'Space Grotesk',sans-serif;font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:#ff5b1f;margin-bottom:4px}
  .equip-table td:nth-child(2){grid-column:1 / -1;color:var(--fg);font-weight:500}
  .equip-table td:nth-child(3){color:var(--fg-mute);font-size:12.5px}
  .equip-table td:nth-child(4){text-align:right;color:var(--fg-mute);font-family:'Space Grotesk',sans-serif;font-size:12px}
  .equip-table td:nth-child(4)::before{content:'×'}
}

/* === PRODUCTS === */
.products{background:var(--bg-2);border-top:1px solid var(--line)}
.prod-feature{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center;margin-bottom:80px}
.prod-img{aspect-ratio:4/5;border-radius:var(--radius);background:var(--surface) center/cover no-repeat;border:1px solid var(--line)}
.badge{display:inline-block;padding:6px 14px;border-radius:999px;background:rgba(255,91,31,.12);color:var(--accent);font-size:12px;font-family:'Space Grotesk',sans-serif;letter-spacing:.08em;margin-bottom:24px}
.prod-info h3{font-family:'Space Grotesk',sans-serif;font-size:clamp(40px,5vw,72px);font-weight:600;letter-spacing:-.04em;line-height:1;margin-bottom:24px}
.prod-info h3 span{display:block;font-size:.4em;color:var(--fg-dim);font-weight:400;letter-spacing:-.02em;margin-top:14px;font-family:'Pretendard',sans-serif}
.prod-info>p{font-size:17px;color:var(--fg-dim);margin-bottom:32px}
.prod-feats{list-style:none;display:grid;grid-template-columns:1fr 1fr;gap:18px}
.prod-feats li{padding:18px;border:1px solid var(--line);border-radius:12px;background:var(--surface)}
.prod-feats b{display:block;font-family:'Space Grotesk',sans-serif;font-size:15px;font-weight:600;margin-bottom:4px}
.prod-feats span{color:var(--fg-dim);font-size:13px}

.prod-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.prod-card{
  padding:28px;min-height:240px;border-radius:var(--radius);
  background:var(--surface);border:1px solid var(--line);
  display:flex;flex-direction:column;justify-content:flex-end;
  transition:.4s var(--ease);position:relative;overflow:hidden;
}
.prod-card[style*=url]::before{
  content:"";position:absolute;inset:0;
  background-image:var(--bg);background-size:cover;background-position:center;
  opacity:.25;
}
.prod-card[style*=url]::after{
  content:"";position:absolute;inset:0;background:linear-gradient(to top,rgba(21,22,26,.96),rgba(21,22,26,.4));
}
.prod-card>*{position:relative;z-index:1}
.prod-card:hover{transform:translateY(-4px);border-color:var(--accent)}
.prod-card h4{font-family:'Space Grotesk',sans-serif;font-size:22px;font-weight:600;margin-bottom:8px;letter-spacing:-.02em}
.prod-card p{color:var(--fg-dim);font-size:14.5px}

/* === PROJECTS === */
.projects{border-top:1px solid var(--line)}
.proj-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.proj{padding:48px 32px;background:var(--bg);transition:.3s var(--ease);min-height:180px;display:flex;flex-direction:column;justify-content:space-between}
.proj:hover{background:var(--surface)}
.proj span{font-family:'Space Grotesk',sans-serif;font-size:12px;letter-spacing:.14em;color:var(--accent);text-transform:uppercase}
.proj h5{font-size:20px;font-weight:600;margin-top:24px;letter-spacing:-.02em}

/* === CERTS === */
.certs{background:var(--bg-2);border-top:1px solid var(--line)}
.cert-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.cert{padding:32px 24px;background:var(--bg-2);text-align:center;transition:.3s;display:flex;flex-direction:column;gap:6px;align-items:center;justify-content:center;min-height:140px}
.cert:hover{background:var(--surface)}
.cert b{font-family:'Space Grotesk',sans-serif;font-size:17px;font-weight:600;letter-spacing:-.01em}
.cert span{color:var(--fg-mute);font-size:12.5px}

/* === CTA === */
.cta{padding:140px 0;border-top:1px solid var(--line);text-align:center;position:relative;overflow:hidden;background:radial-gradient(ellipse 80% 60% at 50% 100%,rgba(255,91,31,.10),transparent 65%),radial-gradient(ellipse 50% 60% at 50% 0%,rgba(255,183,3,.05),transparent 65%),var(--bg)}
.cta .cta-inner{position:relative;z-index:2}
.cta-mark{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);font-family:'Space Grotesk',sans-serif;font-weight:700;font-size:clamp(140px,22vw,360px);letter-spacing:-.06em;line-height:1;background:linear-gradient(180deg,rgba(255,91,31,.10),rgba(255,183,3,.02) 70%,transparent);-webkit-background-clip:text;background-clip:text;color:transparent;pointer-events:none;user-select:none;z-index:0;white-space:nowrap}
.cta-glow{position:absolute;border-radius:50%;filter:blur(90px);pointer-events:none;z-index:0}
.cta-glow.a{width:480px;height:480px;top:-10%;left:-8%;background:radial-gradient(circle,rgba(255,91,31,.30),transparent 65%);animation:floatA 16s ease-in-out infinite}
.cta-glow.b{width:520px;height:520px;bottom:-15%;right:-6%;background:radial-gradient(circle,rgba(255,183,3,.20),transparent 65%);animation:floatB 20s ease-in-out infinite}
.cta-circuit{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;z-index:1;opacity:.55}
.cta-circuit path{stroke-dasharray:6 8;animation:dash 30s linear infinite}
.cta-circuit circle{filter:drop-shadow(0 0 8px currentColor);animation:blink 2.4s ease-in-out infinite}
.cta-eyebrow{display:inline-flex;align-items:center;gap:10px;padding:8px 16px;border:1px solid var(--line-2);border-radius:999px;font-size:13px;color:var(--fg-dim);font-family:'Space Grotesk',sans-serif;margin-bottom:24px}
.cta-eyebrow .dot{width:7px;height:7px;border-radius:50%;background:var(--accent);box-shadow:0 0 12px var(--accent);animation:pulse 2s infinite}
.id-ribbon.reverse .track{animation-direction:reverse}
.cta-inner{max-width:840px;margin:0 auto}
.cta h2{font-family:'Space Grotesk','Pretendard',sans-serif;font-size:clamp(36px,6vw,72px);line-height:1.2;letter-spacing:-.04em;font-weight:600;margin-bottom:20px;padding:.1em 0}
.cta h2 em{font-style:normal;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;font-weight:600;display:inline-block;line-height:1.3;padding:.05em .15em;overflow:visible}
.cta p{color:var(--fg-dim);font-size:18px;margin-bottom:40px}

/* === CONTACT === */
.contact{background:var(--bg-2);border-top:1px solid var(--line)}
.contact-list{list-style:none;margin-top:32px;border-top:1px solid var(--line)}
.contact-list li{display:grid;grid-template-columns:120px 1fr;gap:24px;padding:22px 0;border-bottom:1px solid var(--line);align-items:center}
.contact-list span{font-family:'Space Grotesk',sans-serif;font-size:13px;color:var(--fg-mute);letter-spacing:.12em;text-transform:uppercase}
.contact-list a{font-size:22px;font-weight:500;letter-spacing:-.02em}
.locations{display:flex;flex-direction:column;gap:14px}
.locations article{padding:28px;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);transition:.3s}
.locations article:hover{border-color:var(--accent);transform:translateX(4px)}
.locations h4{font-family:'Space Grotesk',sans-serif;font-size:14px;color:var(--accent);letter-spacing:.1em;text-transform:uppercase;margin-bottom:8px;font-weight:600}
.locations p{font-size:16px;color:var(--fg-dim)}

/* === FOOTER === */
.footer{padding:60px 0 40px;border-top:1px solid var(--line);background:var(--bg)}
.foot-inner{display:flex;justify-content:space-between;align-items:center;gap:32px;flex-wrap:wrap}
.muted{color:var(--fg-mute);font-size:13px;margin-top:14px}
.foot-links{display:flex;gap:24px;font-size:14px;color:var(--fg-dim)}
.foot-links a:hover{color:var(--fg)}

/* === REVEAL ANIM === */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .9s var(--ease),transform .9s var(--ease)}
.reveal.in{opacity:1;transform:none}

/* === CURSOR === */
.cursor{position:fixed;width:18px;height:18px;border:1.5px solid var(--accent);border-radius:50%;pointer-events:none;z-index:100;transform:translate(-50%,-50%);transition:transform .12s var(--ease),width .25s,height .25s,background .25s;mix-blend-mode:difference}
.cursor.active{width:46px;height:46px;background:rgba(255,91,31,.2)}

/* === SCROLL PROGRESS BAR === */
.scroll-progress{position:fixed;top:0;left:0;right:0;height:2px;z-index:60;background:transparent;pointer-events:none}
.scroll-progress span{display:block;height:100%;width:0;background:var(--grad);box-shadow:0 0 12px var(--accent);transition:width .1s linear}

/* === SCROLL HINT === */
.scroll-hint{position:absolute;bottom:90px;right:32px;font-family:'Space Grotesk',sans-serif;font-size:11px;letter-spacing:.2em;color:var(--fg-mute);text-transform:uppercase;display:flex;align-items:center;gap:10px;writing-mode:vertical-rl;transform:rotate(180deg)}
.scroll-hint span{display:block;width:1px;height:50px;background:linear-gradient(to bottom,transparent,var(--accent));animation:hintLine 2s ease-in-out infinite}
@keyframes hintLine{50%{transform:translateY(20px);opacity:.4}}


/* === ANATOMY — Interactive Hotspot Catalog === */
.anatomy{padding:120px 0 0;border-top:1px solid var(--line);background:var(--bg-2)}
.anatomy .section-title em{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;font-style:italic;font-weight:500}

.hot-wrap{height:680vh;position:relative;margin-top:40px}
.hot-stage{
  position:sticky;top:0;height:100vh;
  display:grid;grid-template-columns:1.4fr 1fr;gap:0;
  background:linear-gradient(180deg,var(--bg-2) 0%,var(--bg) 100%);
}

/* LEFT: photo with hotspots */
.hot-photo{
  position:relative;height:100vh;display:flex;align-items:center;justify-content:center;
  padding:80px 40px 40px;overflow:hidden;
  background:radial-gradient(ellipse 70% 50% at 50% 50%,rgba(255,91,31,.08),transparent 70%);
}
.hot-photo-inner{
  position:relative;width:100%;max-width:560px;aspect-ratio:3/5;
  border-radius:18px;overflow:hidden;
  border:1px solid var(--line-2);
  box-shadow:0 40px 80px rgba(0,0,0,.6);
}
.hot-photo-inner img{
  width:100%;height:100%;object-fit:cover;
  transition:transform 1.2s var(--ease),filter .6s var(--ease);
  transform:scale(var(--photo-scale,1));
}
.hot-photo-grad{
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(0,0,0,.2) 0%,transparent 30%,transparent 70%,rgba(0,0,0,.6) 100%);
  pointer-events:none;
}
.hot-tag-corner{
  position:absolute;top:18px;left:18px;
  font-family:'Space Grotesk',sans-serif;font-size:11px;letter-spacing:.16em;
  color:#fff;text-transform:uppercase;font-weight:600;
  padding:8px 14px;background:rgba(0,0,0,.5);backdrop-filter:blur(8px);
  border:1px solid rgba(255,255,255,.15);border-radius:999px;
  z-index:5;
}

/* Hotspot pin */
.hot{
  position:absolute;left:var(--x);top:var(--y);
  transform:translate(-50%,-50%);
  width:36px;height:36px;border-radius:50%;
  background:rgba(0,0,0,.55);backdrop-filter:blur(6px);
  border:1.5px solid rgba(255,255,255,.5);
  display:flex;align-items:center;justify-content:center;
  font-family:'Space Grotesk',sans-serif;font-size:11px;font-weight:700;color:#fff;
  cursor:pointer;z-index:3;
  transition:.4s var(--ease);
}
.hot i{font-style:normal}
.hot::before{
  content:"";position:absolute;inset:-6px;border-radius:50%;
  border:1px solid var(--accent);opacity:0;
  transition:.4s var(--ease);
}
.hot::after{
  content:"";position:absolute;inset:0;border-radius:50%;
  background:var(--accent);opacity:0;
  animation:hotPulse 2s ease-out infinite;animation-play-state:paused;
}
.hot span{
  position:absolute;left:calc(100% + 14px);top:50%;transform:translateY(-50%) translateX(-8px);
  font-family:'Space Grotesk',sans-serif;font-size:10.5px;letter-spacing:.12em;color:#fff;
  white-space:nowrap;font-weight:600;
  padding:6px 10px;background:rgba(0,0,0,.7);border-radius:6px;
  border:1px solid rgba(255,255,255,.1);
  opacity:0;pointer-events:none;
  transition:.3s var(--ease);
}
.hot.left-of-center span{left:auto;right:calc(100% + 14px);transform:translateY(-50%) translateX(8px)}
.hot:hover{transform:translate(-50%,-50%) scale(1.15);border-color:#fff;background:rgba(0,0,0,.8)}
.hot:hover span{opacity:1;transform:translateY(-50%) translateX(0)}
.hot.active{
  background:var(--accent);border-color:var(--accent);
  transform:translate(-50%,-50%) scale(1.35);
  box-shadow:0 0 0 4px rgba(255,91,31,.25),0 8px 24px rgba(255,91,31,.5);
  z-index:4;
}
.hot.active::before{opacity:1;inset:-10px}
.hot.active::after{opacity:.45;animation-play-state:running}
.hot.active span{opacity:1;transform:translateY(-50%) translateX(0)}
@keyframes hotPulse{
  0%{transform:scale(1);opacity:.5}
  100%{transform:scale(2.4);opacity:0}
}
.hot.passed{background:rgba(255,91,31,.18);border-color:rgba(255,91,31,.6);color:var(--accent)}

/* RIGHT: side panel */
.hot-panel{
  position:relative;height:100vh;
  padding:90px 60px 60px;
  display:flex;flex-direction:column;gap:24px;
  background:linear-gradient(180deg,rgba(255,255,255,.02),transparent),var(--bg);
  border-left:1px solid var(--line);
  overflow:hidden;
}
.hp-header{display:flex;flex-direction:column;gap:10px}
.hp-tag{
  font-family:'Space Grotesk',sans-serif;font-size:12px;letter-spacing:.16em;color:var(--accent);
  text-transform:uppercase;font-weight:600;
}
.hp-tag b{color:var(--accent);font-weight:700;font-size:14px}
.hp-bar{width:100%;height:2px;background:var(--line);border-radius:2px;overflow:hidden}
.hp-bar span{display:block;height:100%;width:0;background:var(--grad);transition:width .25s var(--ease)}

.hp-card{
  display:flex;flex-direction:column;gap:18px;
  padding:0;flex:1;min-height:0;
  animation:hpIn .55s var(--ease);
}
@keyframes hpIn{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
.hp-thumb{
  width:100%;aspect-ratio:16/10;border-radius:14px;overflow:hidden;
  background:#fff;border:1px solid var(--line);
  position:relative;
}
.hp-thumb img{width:100%;height:100%;object-fit:cover;transition:.6s var(--ease)}
.hp-thumb::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(135deg,transparent 60%,rgba(255,91,31,.12));
  pointer-events:none;
}
.hp-card h3{
  font-family:'Space Grotesk',sans-serif;font-size:clamp(28px,3.2vw,44px);
  font-weight:600;letter-spacing:-.025em;line-height:1.05;
}
.hp-card>p{color:var(--fg-dim);font-size:15.5px;line-height:1.65}
.hp-spec{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:12px;overflow:hidden;margin-top:auto}
.hp-spec>div{background:var(--bg);padding:14px 16px;display:flex;flex-direction:column;gap:4px}
.hp-spec dt{font-family:'Space Grotesk',sans-serif;font-size:10px;letter-spacing:.14em;color:var(--fg-mute);text-transform:uppercase}
.hp-spec dd{font-size:14px;font-weight:500;color:var(--fg)}

/* Compact list of all parts (12 chips) */
.hp-list{
  list-style:none;display:grid;grid-template-columns:repeat(6,1fr);gap:6px;
  margin-top:8px;
}
.hp-list li{
  display:flex;align-items:center;justify-content:center;gap:4px;
  padding:8px 6px;border:1px solid var(--line);border-radius:8px;
  font-family:'Space Grotesk',sans-serif;font-size:10px;color:var(--fg-mute);
  cursor:pointer;transition:.3s var(--ease);
  letter-spacing:.04em;
}
.hp-list li b{font-weight:700;color:var(--fg-dim)}
.hp-list li:hover{border-color:var(--line-2);color:var(--fg)}
.hp-list li.active{background:var(--accent);border-color:var(--accent);color:#fff}
.hp-list li.active b{color:#fff}

/* === PROCESS === */
.process{padding:120px 0;background:var(--bg);border-top:1px solid var(--line)}
.proc-list{list-style:none;display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.proc-list li{padding:36px 28px;background:var(--bg);transition:.3s;position:relative;min-height:200px;display:flex;flex-direction:column}
.proc-list li:hover{background:var(--surface)}
.proc-list li b{font-family:'Space Grotesk',sans-serif;font-size:13px;color:var(--accent);letter-spacing:.16em;margin-bottom:18px;font-weight:600}
.proc-list li h4{font-size:20px;font-weight:600;margin-bottom:10px;letter-spacing:-.02em}
.proc-list li p{color:var(--fg-dim);font-size:14.5px;margin-top:auto}
.proc-list li.highlight{background:linear-gradient(135deg,rgba(255,91,31,.18),rgba(255,183,3,.08));border-left:2px solid var(--accent)}
.proc-list li.highlight b{color:#fff}

/* === SUB HEAD (between subsections) === */
.sub-head{margin:80px 0 32px;display:flex;align-items:baseline;gap:24px;flex-wrap:wrap}
.sub-head span{font-family:'Space Grotesk',sans-serif;font-size:13px;color:var(--accent);letter-spacing:.16em;font-weight:600}
.sub-head h3{font-family:'Space Grotesk',sans-serif;font-size:clamp(24px,3vw,38px);font-weight:600;letter-spacing:-.025em}
.sub-head p{color:var(--fg-dim);font-size:15px;flex-basis:100%;margin-top:4px}

/* === GALLERY 6 (PUMP 배전반) === */
.gallery-6{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.gallery-6 figure{position:relative;aspect-ratio:4/3;border-radius:14px;overflow:hidden;border:1px solid var(--line);background:#fff;transition:.4s var(--ease)}
.gallery-6 figure img{width:100%;height:100%;object-fit:cover;transition:.6s var(--ease)}
.gallery-6 figure:hover{transform:translateY(-4px);border-color:var(--accent)}
.gallery-6 figure:hover img{transform:scale(1.06)}

/* === JIG GRID === */
.jig-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.jig{padding:0;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);overflow:hidden;transition:.4s var(--ease)}
.jig:hover{transform:translateY(-6px);border-color:var(--accent);box-shadow:0 24px 48px rgba(0,0,0,.4)}
.jig img{width:100%;aspect-ratio:16/9;object-fit:cover;background:#fff;transition:.6s var(--ease)}
.jig:hover img{transform:scale(1.04)}
.jig h5{padding:18px 22px 6px;font-family:'Space Grotesk',sans-serif;font-size:18px;font-weight:600;letter-spacing:-.01em}
.jig p{padding:0 22px 22px;color:var(--fg-dim);font-size:14px}

/* === PROD CARDS WITH IMAGES === */
.prod-card{padding:0;display:block;border-radius:var(--radius);background:var(--surface);border:1px solid var(--line);overflow:hidden;min-height:auto;transition:.4s var(--ease)}
.prod-card:hover{transform:translateY(-4px);border-color:var(--accent)}
.prod-card img{width:100%;aspect-ratio:4/3;object-fit:cover;background:#fff;transition:.6s var(--ease)}
.prod-card:hover img{transform:scale(1.05)}
.pc-body{padding:22px}
.prod-card.big{grid-column:span 2}
.prod-card.big img{aspect-ratio:16/9}
@media(max-width:960px){.prod-card.big{grid-column:auto}}
.prod-card.big .pc-body h4{font-size:26px}
.prod-card[style*=url]::before,.prod-card[style*=url]::after{display:none}

/* === PROJECTS MOSAIC === */
.proj-mosaic{display:grid;grid-template-columns:repeat(4,1fr);grid-auto-rows:220px;gap:14px}
.proj-mosaic figure{position:relative;border-radius:14px;overflow:hidden;border:1px solid var(--line);background:#222;transition:.4s var(--ease)}
.proj-mosaic figure:nth-child(1),.proj-mosaic figure:nth-child(8){grid-row:span 2}
.proj-mosaic figure img{width:100%;height:100%;object-fit:cover;transition:.6s var(--ease)}
.proj-mosaic figcaption{position:absolute;left:0;right:0;bottom:0;padding:18px;font-family:'Space Grotesk',sans-serif;font-size:13px;font-weight:500;letter-spacing:.04em;color:#fff;background:linear-gradient(to top,rgba(0,0,0,.9),transparent);opacity:0;transform:translateY(8px);transition:.4s var(--ease)}
.proj-mosaic figure:hover{transform:translateY(-4px);border-color:var(--accent)}
.proj-mosaic figure:hover img{transform:scale(1.06)}
.proj-mosaic figure:hover figcaption{opacity:1;transform:none}

/* === FACILITY MOSAIC === */
.facility{background:var(--bg-2);border-top:1px solid var(--line)}
.fac-mosaic{display:grid;grid-template-columns:repeat(6,1fr);grid-auto-rows:200px;gap:14px}
.fac-mosaic figure{position:relative;border-radius:14px;overflow:hidden;border:1px solid var(--line);grid-column:span 2;transition:.4s var(--ease)}
.fac-mosaic figure.big{grid-column:span 4;grid-row:span 2}
.fac-mosaic figure img{width:100%;height:100%;object-fit:cover;transition:.7s var(--ease)}
.fac-mosaic figcaption{position:absolute;left:18px;bottom:18px;display:flex;flex-direction:column;gap:4px;color:#fff}
.fac-mosaic figcaption span{font-family:'Space Grotesk',sans-serif;font-size:11px;letter-spacing:.16em;color:var(--accent);text-transform:uppercase}
.fac-mosaic figcaption{font-weight:500;font-size:16px;letter-spacing:-.01em;text-shadow:0 2px 12px rgba(0,0,0,.8)}
.fac-mosaic figure::after{content:"";position:absolute;inset:0;background:linear-gradient(to top,rgba(0,0,0,.7) 0%,transparent 50%);pointer-events:none}
.fac-mosaic figure:hover{transform:translateY(-4px);border-color:var(--accent)}
.fac-mosaic figure:hover img{transform:scale(1.06)}

/* === LICENSE GRID & CERT MOSAIC === */
.lic-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.lic-grid figure{aspect-ratio:3/4;border:1px solid var(--line);border-radius:14px;overflow:hidden;background:#fff;position:relative;transition:.4s var(--ease)}
.lic-grid figure img{width:100%;height:100%;object-fit:contain;background:#fff;padding:14px;transition:.4s}
.lic-grid figcaption{position:absolute;left:0;right:0;bottom:0;padding:12px;font-size:12.5px;color:var(--fg);background:rgba(0,0,0,.8);text-align:center;font-family:'Space Grotesk',sans-serif;letter-spacing:.04em;backdrop-filter:blur(6px)}
.lic-grid figure:hover{transform:translateY(-4px);border-color:var(--accent);box-shadow:0 18px 40px rgba(0,0,0,.4)}

.cert-mosaic{display:grid;grid-template-columns:repeat(7,1fr);gap:12px}
.cert-mosaic figure{aspect-ratio:3/4;border:1px solid var(--line);border-radius:12px;overflow:hidden;background:#fff;position:relative;transition:.4s var(--ease)}
.cert-mosaic img{width:100%;height:100%;object-fit:contain;background:#fff;padding:8px;transition:.4s}
.cert-mosaic figcaption{position:absolute;left:0;right:0;bottom:0;padding:8px;font-size:10.5px;color:#fff;background:linear-gradient(to top,rgba(0,0,0,.92),transparent);text-align:center;font-family:'Space Grotesk',sans-serif;letter-spacing:.04em;font-weight:500;opacity:0;transition:.3s}
.cert-mosaic figure:hover{transform:translateY(-4px);border-color:var(--accent);box-shadow:0 14px 30px rgba(0,0,0,.4)}
.cert-mosaic figure:hover figcaption{opacity:1}

/* === RESPONSIVE === */
@media (max-width:960px){
  .nav-links,.nav-cta{display:none}
  .nav-burger{display:flex}
  .container{padding:0 22px}
  .nav{padding:16px 22px}
  .hero{padding:120px 22px 80px}
  .hero-meta{grid-template-columns:repeat(2,1fr);gap:24px;margin-top:60px}
  section{padding:90px 0}
  .two-col{grid-template-columns:1fr;gap:48px}
  .ov-grid{grid-template-columns:repeat(2,1fr)}
  .timeline::before{left:0}
  .t-item{grid-template-columns:1fr;gap:14px;padding-left:24px}
  .t-item::before{left:-6px;top:14px}
  .cap-grid,.prod-grid{grid-template-columns:1fr}
  .cap-card.big{grid-column:auto}
  .prod-feature{grid-template-columns:1fr;gap:32px}
  .prod-feats{grid-template-columns:1fr}
  .proj-grid{grid-template-columns:repeat(2,1fr)}
  .cert-grid{grid-template-columns:repeat(2,1fr)}
  .section-head{margin-bottom:48px}
  .cursor{display:none}
  .contact-list li{grid-template-columns:80px 1fr}
  .contact-list a{font-size:18px}
  .scroll-hint{display:none}
  .hot-wrap{height:auto}
  .hot-stage{position:relative;height:auto;grid-template-columns:1fr;gap:0}
  .hot-photo{padding:32px 22px;height:auto}
  .hot-photo-inner{aspect-ratio:3/4;max-width:none}
  .hot{width:30px;height:30px;font-size:10px}
  .hot span{display:none}
  .hot-panel{padding:32px 22px;height:auto;border-left:0;border-top:1px solid var(--line)}
  .hp-list{grid-template-columns:repeat(4,1fr)}
  .hp-spec{grid-template-columns:1fr}
  .proc-list{grid-template-columns:1fr}
  .gallery-6,.jig-grid{grid-template-columns:1fr 1fr;gap:10px}
  .proj-mosaic{grid-template-columns:1fr 1fr;grid-auto-rows:160px}
  .proj-mosaic figure:nth-child(1),.proj-mosaic figure:nth-child(8){grid-row:auto}
  .fac-mosaic{grid-template-columns:1fr 1fr;grid-auto-rows:160px}
  .fac-mosaic figure,.fac-mosaic figure.big{grid-column:auto;grid-row:auto}
  .lic-grid{grid-template-columns:1fr 1fr}
  .cert-mosaic{grid-template-columns:repeat(3,1fr)}
}
@media (max-width:560px){
  .hero-meta{grid-template-columns:1fr 1fr}
  .ov-grid{grid-template-columns:1fr}
  .proj-grid,.cert-grid{grid-template-columns:1fr}
  .container{padding:0 16px}
  .nav{padding:14px 16px;gap:12px}
  .hero{padding:110px 16px 70px}
}
@media (max-width:380px){
  .parts-grid{grid-template-columns:1fr;gap:14px}
  .nav .brand-name{display:none}
  .pl-meta{padding:24px 20px}
  .pl-img{padding:32px 18px 18px}
}

/* === PARTS CATALOG: grid + lightbox === */
.parts-filter{
  display:flex; flex-wrap:wrap; gap:8px;
  margin:40px 0 12px;
  padding-bottom:14px;
  border-bottom:1px solid var(--line);
}
.parts-chip{
  appearance:none; cursor:pointer;
  background:transparent;
  border:1px solid var(--line);
  color:var(--fg-dim);
  padding:8px 14px; border-radius:999px;
  font:600 12px/1 'Space Grotesk',sans-serif;
  letter-spacing:.12em; text-transform:uppercase;
  display:inline-flex; align-items:center; gap:8px;
  transition:background .2s, color .2s, border-color .2s, transform .2s;
}
.parts-chip span{
  font-size:11px; padding:2px 6px;
  background:rgba(255,255,255,.06);
  border-radius:999px; color:var(--muted);
  letter-spacing:.04em;
}
.parts-chip:hover{ color:var(--fg); border-color:rgba(255,91,31,.55) }
.parts-chip.active{
  background:#ff5b1f; color:#0a0a0c;
  border-color:#ff5b1f;
}
.parts-chip.active span{ background:rgba(0,0,0,.18); color:#0a0a0c }

.part-card.dim{
  opacity:.22;
  filter:grayscale(.6) blur(.3px);
  pointer-events:none;
  transition:opacity .35s ease, filter .35s ease;
}
.part-card{ transition:opacity .35s, filter .35s, transform .35s cubic-bezier(.2,.7,.2,1), border-color .3s, box-shadow .3s }

.parts-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:18px;
  margin-top:24px;
}
@media (max-width:1024px){ .parts-grid{grid-template-columns:repeat(3,1fr)} }
@media (max-width:760px){ .parts-grid{grid-template-columns:repeat(2,1fr); gap:12px} }

.part-card{
  position:relative;
  display:flex; flex-direction:column;
  background:var(--bg-2);
  border:1px solid var(--line);
  border-radius:14px;
  padding:0;
  overflow:hidden;
  text-align:left;
  cursor:pointer;
  transition:transform .35s cubic-bezier(.2,.7,.2,1), border-color .3s, box-shadow .3s;
  color:inherit;
  font:inherit;
}
.part-card:hover{
  transform:translateY(-4px);
  border-color:rgba(255,91,31,.55);
  box-shadow:0 18px 40px -22px rgba(255,91,31,.55);
}
.pc-num{
  position:absolute; top:12px; left:14px; z-index:2;
  font-family:'Space Grotesk',sans-serif;
  font-size:12px; font-weight:600; letter-spacing:.12em;
  color:#ff5b1f;
  background:rgba(0,0,0,.55);
  padding:4px 8px; border-radius:6px;
  backdrop-filter:blur(6px);
}
/* legacy single-image (no longer rendered, kept for backwards compat) */
.pc-img{ display:block; aspect-ratio:1/1; overflow:hidden; background:#0e0e10 }
.pc-img img{ width:100%; height:100%; object-fit:cover }

/* Dual-image media: drawing on top, photo on bottom */
.pc-media{
  display:grid; grid-template-rows:1fr 1fr;
  aspect-ratio:1/1.05; overflow:hidden;
  background:#0e0e10;
  position:relative;
}
.pc-drawing, .pc-photo{
  display:block; overflow:hidden; position:relative;
}
.pc-drawing{
  background:#f4f1ea; /* light paper for engineering drawing */
  border-bottom:1px solid var(--line);
}
.pc-drawing::after{
  content:'DRAWING';
  position:absolute; top:6px; right:8px;
  font-family:'Space Grotesk',sans-serif;
  font-size:9px; letter-spacing:.18em; font-weight:600;
  color:rgba(0,0,0,.45);
}
.pc-photo{ background:#0e0e10 }
.pc-photo::after{
  content:'PHOTO';
  position:absolute; top:6px; right:8px;
  font-family:'Space Grotesk',sans-serif;
  font-size:9px; letter-spacing:.18em; font-weight:600;
  color:rgba(255,255,255,.55);
}
.pc-drawing img, .pc-photo img{
  width:100%; height:100%; object-fit:contain;
  transition:transform .6s cubic-bezier(.2,.7,.2,1), opacity .35s ease;
  padding:6px;
}
.pc-photo img{ object-fit:cover; padding:0 }
.part-card:hover .pc-photo img{ transform:scale(1.06) }
.part-card:hover .pc-drawing{ opacity:.85 }

.pc-meta{
  display:flex; flex-direction:column; gap:4px;
  padding:14px 16px 16px;
  border-top:1px solid var(--line);
  position:relative;
}
.pc-meta b{
  font-family:'Space Grotesk',sans-serif;
  font-size:14px; letter-spacing:.04em; font-weight:600;
  padding-right:62px;
  overflow:hidden; text-overflow:ellipsis; white-space:nowrap;
}
.pc-meta em{ font-style:normal; color:var(--muted); font-size:13px;
  overflow:hidden; text-overflow:ellipsis; white-space:nowrap;
}
.pc-cat{
  position:absolute; top:10px; right:10px;
  font-family:'Space Grotesk',sans-serif;
  font-size:9.5px; line-height:1; letter-spacing:.12em; font-weight:600;
  color:#ff5b1f;
  border:1px solid rgba(255,91,31,.45);
  background:rgba(10,10,12,.85);
  backdrop-filter:blur(4px);
  padding:5px 8px; border-radius:999px;
  text-transform:uppercase;
  pointer-events:none;
}
@media (max-width:760px){
  .pc-cat{ position:static; align-self:flex-start; order:-1; margin-bottom:8px }
  .pc-meta{ gap:6px }
  .pc-meta b, .pc-meta em{ padding-right:0; white-space:normal; overflow:visible; text-overflow:clip }
}

/* Lightbox */
.parts-lightbox{
  position:fixed; inset:0; z-index:200;
  background:rgba(8,8,10,.86);
  backdrop-filter:blur(8px);
  display:flex; align-items:center; justify-content:center;
  padding:5vh 4vw;
  animation:plFade .25s ease;
}
.parts-lightbox[hidden]{ display:none }
@keyframes plFade{ from{opacity:0} to{opacity:1} }
.pl-card{
  display:grid;
  grid-template-columns:1.2fr 1fr;
  grid-template-rows:1fr auto;
  grid-template-areas:
    "media meta"
    "thumbs thumbs";
  gap:0;
  width:min(1100px,100%);
  max-height:92vh;
  background:var(--bg-2);
  border:1px solid var(--line);
  border-radius:18px; overflow:hidden;
}
@media (max-width:760px){
  .pl-card{
    grid-template-columns:1fr;
    grid-template-areas:"media" "meta" "thumbs";
    max-height:90vh; overflow:auto;
  }
}
.pl-media{
  grid-area:media;
  position:relative;
  background:#0e0e10;
  display:flex; flex-direction:column;
  min-height:340px;
}
.pl-toggle{
  position:absolute; top:14px; left:14px; z-index:2;
  display:inline-flex; gap:4px;
  background:rgba(0,0,0,.55);
  border:1px solid rgba(255,255,255,.14);
  padding:3px; border-radius:999px;
  backdrop-filter:blur(8px);
}
.pl-tab{
  appearance:none; background:transparent; border:0;
  color:rgba(255,255,255,.7);
  font:600 11px/1 'Space Grotesk',sans-serif;
  letter-spacing:.16em; text-transform:uppercase;
  padding:7px 13px; border-radius:999px; cursor:pointer;
  transition:background .2s, color .2s;
}
.pl-tab.active{ background:#ff5b1f; color:#0a0a0c }
.pl-img{ flex:1; display:flex; align-items:center; justify-content:center; padding:48px 32px 28px; }
.pl-img img{ width:100%; height:100%; max-height:62vh; object-fit:contain; transition:opacity .2s ease }

.pl-meta{
  grid-area:meta;
  padding:42px 36px;
  display:flex; flex-direction:column; gap:14px;
  border-left:1px solid var(--line);
}
.pl-tag{
  font-family:'Space Grotesk',sans-serif; font-size:12px;
  letter-spacing:.16em; color:#ff5b1f;
}
.pl-meta h3{
  font-family:'Space Grotesk',sans-serif;
  font-size:30px; letter-spacing:.02em; margin:0; line-height:1.15;
}
.pl-kr{ color:var(--muted); font-size:15px; margin:0 0 8px }
.pl-spec{
  display:grid; grid-template-columns:auto 1fr;
  gap:8px 18px; margin:8px 0 0; font-size:14px;
  border-top:1px solid var(--line); padding-top:18px;
}
.pl-spec dt{
  font-family:'Space Grotesk',sans-serif;
  font-size:11px; letter-spacing:.14em; text-transform:uppercase;
  color:var(--muted); margin:0; align-self:center;
}
.pl-spec dd{ margin:0; color:var(--fg); font-weight:500 }

/* Thumbnail strip */
.pl-thumbs{
  grid-area:thumbs;
  display:flex; gap:8px; padding:14px 18px;
  overflow-x:auto; overflow-y:hidden;
  border-top:1px solid var(--line);
  background:rgba(0,0,0,.25);
  scrollbar-width:thin;
}
.pl-thumbs::-webkit-scrollbar{ height:6px }
.pl-thumbs::-webkit-scrollbar-thumb{ background:rgba(255,91,31,.4); border-radius:3px }
.pl-thumb{
  position:relative; flex:0 0 auto;
  width:60px; height:60px;
  background:#0e0e10;
  border:1px solid rgba(255,255,255,.08);
  border-radius:8px; overflow:hidden;
  cursor:pointer; padding:0;
  transition:border-color .2s, transform .2s;
}
.pl-thumb img{ width:100%; height:100%; object-fit:cover; opacity:.6; transition:opacity .2s }
.pl-thumb span{
  position:absolute; top:2px; left:4px;
  font:600 9px/1 'Space Grotesk',sans-serif;
  letter-spacing:.1em; color:#fff;
  background:rgba(0,0,0,.6); padding:2px 4px; border-radius:3px;
}
.pl-thumb:hover img{ opacity:.85 }
.pl-thumb.active{ border-color:#ff5b1f; transform:translateY(-2px) }
.pl-thumb.active img{ opacity:1 }
.pl-close, .pl-nav{
  position:absolute; z-index:2;
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.14);
  color:#fff;
  width:44px; height:44px; border-radius:50%;
  display:flex; align-items:center; justify-content:center;
  cursor:pointer; font-size:22px; line-height:1;
  transition:background .2s, transform .2s;
}
.pl-close:hover, .pl-nav:hover{ background:rgba(255,91,31,.85); transform:scale(1.05) }
.pl-close{ top:24px; right:24px }
.pl-nav.prev{ left:24px; top:50% }
.pl-nav.next{ right:24px; top:50% }
@media (max-width:760px){ .pl-nav{top:auto; bottom:24px} .pl-nav.prev{left:24px} .pl-nav.next{right:24px} }

/* === BRAND IDENTITY LAYERS === */
/* Hero ghost wordmark */
.hero-mark{
  position:absolute;
  right:3vw; bottom:90px;
  font-family:'Space Grotesk',sans-serif;
  font-size:clamp(220px, 34vw, 540px);
  font-weight:700; letter-spacing:-.06em;
  line-height:1;
  background:linear-gradient(180deg, rgba(255,91,31,.10), rgba(255,183,3,.02) 60%, transparent);
  -webkit-background-clip:text; background-clip:text;
  color:transparent;
  pointer-events:none;
  user-select:none;
  z-index:0;
  filter:blur(.5px);
}
.hero-inner{ z-index:2 }
.hero-marquee{ z-index:3 }

/* Hero glows */
.hero-glow{
  position:absolute; pointer-events:none; z-index:0;
  border-radius:50%; filter:blur(80px);
}
.hero-glow.a{
  width:520px; height:520px;
  top:8%; left:-10%;
  background:radial-gradient(circle, rgba(255,91,31,.30), transparent 65%);
  animation:floatA 14s ease-in-out infinite;
}
.hero-glow.b{
  width:600px; height:600px;
  bottom:-12%; right:6%;
  background:radial-gradient(circle, rgba(255,183,3,.18), transparent 65%);
  animation:floatB 18s ease-in-out infinite;
}
@keyframes floatA{ 50%{transform:translate(40px,-30px)} }
@keyframes floatB{ 50%{transform:translate(-50px,20px)} }

/* Hero schematic gas-line circuit */
.hero-circuit{
  position:absolute; inset:0; width:100%; height:100%;
  pointer-events:none; z-index:1;
  opacity:.6;
}
.hero-circuit path{
  stroke-dasharray:6 8;
  animation:dash 30s linear infinite;
}
@keyframes dash{ to{ stroke-dashoffset:-280 } }
.hero-circuit circle{
  filter:drop-shadow(0 0 6px currentColor);
  animation:blink 2.4s ease-in-out infinite;
}
.hero-circuit circle:nth-child(odd){ animation-delay:.6s }
@keyframes blink{ 0%,100%{opacity:.4} 50%{opacity:1} }

/* Global subtle dot texture */
body{
  background-image:
    radial-gradient(rgba(255,91,31,.045) 1px, transparent 1px);
  background-size: 26px 26px;
  background-attachment: fixed;
  background-position: 0 0;
}

/* Section identity ribbon — drop between sections via .id-ribbon */
.id-ribbon{
  position:relative;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  background:
    linear-gradient(90deg, rgba(255,91,31,.04), rgba(255,183,3,.02), rgba(255,91,31,.04));
  overflow:hidden;
  padding:14px 0;
}
.id-ribbon .track{
  display:flex; gap:48px; white-space:nowrap;
  animation:scrollX 9s linear infinite;
  font-family:'Space Grotesk',sans-serif;
  font-size:13px; letter-spacing:.22em; text-transform:uppercase;
  color:var(--fg-dim);
}
.id-ribbon .track b{
  color:#ff5b1f; font-weight:600;
}
.id-ribbon .track span{ display:inline-flex; align-items:center; gap:48px }
@keyframes scrollX{ to{ transform:translateX(-50%) } }

@media (max-width:760px){
  .hero-mark{ font-size:48vw; bottom:80px; right:4vw }
  .hero-glow.a{ width:300px; height:300px }
  .hero-glow.b{ width:340px; height:340px }
}