/* NAMYOUNG M.T. — steel spec-sheet design system */
:root{
  --ink:#0d141d; --steel:#14212f; --steel2:#1b2c3e; --slate:#41556b;
  --chrome:#8fa2b5; --line:#d7dee5; --hairline:#e4e9ee;
  --paper:#f4f6f8; --white:#ffffff;
  --heat:#ff5a1f; --heat-deep:#d84206; --heat-soft:#fff0e9;
  --disp:"Saira Semi Condensed","Pretendard",sans-serif;
  --body:"Pretendard",-apple-system,"Malgun Gothic",sans-serif;
  --mono:"IBM Plex Mono","Pretendard",monospace;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{animation:none!important;transition:none!important}}
body{font-family:var(--body);color:var(--ink);background:var(--white);line-height:1.65;font-size:16px;-webkit-font-smoothing:antialiased}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
.wrap{max-width:1180px;margin:0 auto;padding:0 24px}

/* ---------- header ---------- */
.topbar{background:var(--ink);color:#b9c6d4;font-family:var(--mono);font-size:11.5px;letter-spacing:.04em}
.topbar .wrap{display:flex;justify-content:space-between;padding-top:7px;padding-bottom:7px}
.topbar span b{color:#fff;font-weight:500}
header.site{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
header.site .wrap{display:flex;align-items:center;justify-content:space-between;height:66px}
.logo{display:flex;align-items:baseline;gap:10px}
.logo .en{font-family:var(--disp);font-weight:700;font-size:23px;letter-spacing:.02em;color:var(--steel)}
.logo .en i{font-style:normal;color:var(--heat)}
.logo .ko{font-size:12.5px;color:var(--slate);letter-spacing:.14em}
nav.main{display:flex;gap:4px}
nav.main a{font-size:13.5px;font-weight:600;color:var(--steel);padding:9px 13px;border-radius:3px;letter-spacing:.01em}
nav.main a:hover{background:var(--paper);color:var(--heat-deep)}
nav.main a.on{color:var(--heat-deep);box-shadow:inset 0 -2px 0 var(--heat)}
#navtg{display:none;background:none;border:1px solid var(--line);border-radius:4px;width:42px;height:38px;cursor:pointer;font-size:18px;color:var(--steel)}
@media(max-width:980px){
  #navtg{display:block}
  nav.main{display:none;position:absolute;top:66px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);flex-direction:column;padding:10px 16px 16px}
  nav.main.open{display:flex}
  nav.main a{padding:12px 10px;border-bottom:1px solid var(--hairline)}
  nav.main a.on{box-shadow:inset 3px 0 0 var(--heat)}
}

/* ---------- shared type ---------- */
.eyebrow{font-family:var(--mono);font-size:12px;letter-spacing:.22em;color:var(--heat-deep);text-transform:uppercase;display:flex;align-items:center;gap:12px;margin-bottom:14px}
.eyebrow::before{content:"";width:26px;height:2px;background:var(--heat)}
h2.sec{font-size:clamp(24px,3.4vw,34px);font-weight:800;letter-spacing:-.01em;line-height:1.25;color:var(--steel)}
h2.sec .en{font-family:var(--disp);color:var(--chrome);font-weight:600;font-size:.62em;letter-spacing:.06em;display:block;margin-top:4px;text-transform:uppercase}
.lead{color:var(--slate);max-width:720px;margin-top:14px;font-size:16.5px}
section.blk{padding:84px 0}
section.blk.tint{background:var(--paper)}
section.blk.dark{background:var(--steel);color:#e7edf3}
section.blk.dark h2.sec{color:#fff}
section.blk.dark .lead{color:#aebccb}
.sec-head{margin-bottom:40px}

/* ---------- hero (home) ---------- */
.hero{position:relative;background:var(--ink);color:#fff;overflow:hidden}
.hero .bg{position:absolute;inset:0;background:url(../img/texture.jpg) center/cover;opacity:.42}
.hero .shade{position:absolute;inset:0;background:linear-gradient(100deg,rgba(9,15,22,.96) 30%,rgba(9,15,22,.55) 65%,rgba(216,66,6,.28));}
.hero .grid{position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);background-size:56px 56px;mask-image:linear-gradient(to bottom,transparent,black 20%,black 85%,transparent)}
.hero .wrap{position:relative;padding-top:110px;padding-bottom:96px}
.hero .tag{font-family:var(--mono);font-size:12.5px;letter-spacing:.28em;color:#ff9b6e;margin-bottom:22px}
.hero h1{font-size:clamp(34px,5.4vw,60px);font-weight:800;line-height:1.18;letter-spacing:-.015em;max-width:760px}
.hero h1 em{font-style:normal;color:#ffb392}
.hero p.sub{margin-top:22px;max-width:600px;color:#c3cfdc;font-size:17px}
.hero .ticks{display:flex;flex-wrap:wrap;gap:0;margin-top:44px;border-top:1px solid rgba(255,255,255,.18)}
.hero .ticks div{padding:16px 34px 0 0;margin-right:34px;font-family:var(--mono)}
.hero .ticks b{display:block;font-family:var(--disp);font-size:30px;font-weight:700;color:#fff;letter-spacing:.01em}
.hero .ticks span{font-size:11.5px;letter-spacing:.14em;color:#93a4b6}
.btnrow{display:flex;gap:12px;margin-top:36px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:9px;font-weight:700;font-size:14.5px;padding:13px 24px;border-radius:3px;letter-spacing:.02em}
.btn.heat{background:var(--heat);color:#fff}
.btn.heat:hover{background:var(--heat-deep)}
.btn.ghost{border:1px solid rgba(255,255,255,.35);color:#fff}
.btn.ghost:hover{border-color:#fff;background:rgba(255,255,255,.06)}
.btn.line{border:1.5px solid var(--steel);color:var(--steel)}
.btn.line:hover{background:var(--steel);color:#fff}

/* ---------- page head (subpages) ---------- */
.phead{position:relative;background:var(--ink);color:#fff;overflow:hidden}
.phead .bg{position:absolute;inset:0;background-position:center;background-size:cover;opacity:.34}
.phead .shade{position:absolute;inset:0;background:linear-gradient(96deg,rgba(9,15,22,.95) 34%,rgba(9,15,22,.5))}
.phead .wrap{position:relative;padding-top:78px;padding-bottom:64px}
.phead .crumb{font-family:var(--mono);font-size:12px;letter-spacing:.2em;color:#ff9b6e;margin-bottom:14px;text-transform:uppercase}
.phead h1{font-size:clamp(30px,4.4vw,46px);font-weight:800;letter-spacing:-.01em;line-height:1.2}
.phead p{margin-top:14px;color:#bcc9d7;max-width:640px;font-size:16.5px}

/* ---------- cards / grids ---------- */
.g2{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.g3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.g4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
@media(max-width:900px){.g4{grid-template-columns:repeat(2,1fr)}.g3{grid-template-columns:1fr 1fr}}
@media(max-width:620px){.g2,.g3,.g4{grid-template-columns:1fr}}

.divcard{background:#fff;border:1px solid var(--line);border-radius:6px;overflow:hidden;display:flex;flex-direction:column;transition:transform .18s,box-shadow .18s}
.divcard:hover{transform:translateY(-4px);box-shadow:0 14px 34px rgba(13,20,29,.13)}
.divcard .ph{height:190px;background-size:cover;background-position:center;position:relative}
.divcard .ph::after{content:"";position:absolute;inset:0;background:linear-gradient(to top,rgba(13,20,29,.45),transparent 55%)}
.divcard .no{position:absolute;top:12px;left:14px;font-family:var(--mono);font-size:11px;letter-spacing:.18em;background:rgba(13,20,29,.78);color:#ffb392;padding:4px 9px;border-radius:2px;z-index:1}
.divcard .bd{padding:20px 22px 22px;flex:1;display:flex;flex-direction:column}
.divcard h3{font-size:18.5px;font-weight:800;color:var(--steel)}
.divcard h3 .en{display:block;font-family:var(--disp);font-size:12.5px;font-weight:600;color:var(--chrome);letter-spacing:.1em;margin-top:2px}
.divcard p{font-size:14px;color:var(--slate);margin-top:10px;flex:1}
.divcard .go{margin-top:16px;font-family:var(--mono);font-size:12px;letter-spacing:.14em;color:var(--heat-deep);font-weight:600}
.divcard:hover .go{text-decoration:underline}

.photocard{border:1px solid var(--line);border-radius:6px;overflow:hidden;background:#fff}
.photocard img{width:100%;height:170px;object-fit:cover}
.photocard figcaption{font-size:13px;font-weight:600;color:var(--steel);padding:11px 14px;border-top:1px solid var(--hairline);display:flex;justify-content:space-between;gap:8px}
.photocard figcaption span{font-family:var(--mono);font-size:11px;color:var(--chrome);letter-spacing:.06em}

/* ---------- spec tables ---------- */
.spec{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--line);font-size:14.5px}
.spec caption{caption-side:top;text-align:left;font-family:var(--mono);font-size:12px;letter-spacing:.16em;color:var(--slate);padding-bottom:10px;text-transform:uppercase}
.spec th{background:var(--steel);color:#fff;font-weight:600;font-size:13px;letter-spacing:.06em;padding:11px 14px;text-align:left;border-bottom:2px solid var(--heat)}
.spec td{padding:10px 14px;border-bottom:1px solid var(--hairline);color:#233242}
.spec tr:nth-child(even) td{background:#fafbfc}
.spec td.num,.spec th.num{font-family:var(--mono);font-size:13.5px;text-align:right;white-space:nowrap}
.spec td.mono{font-family:var(--mono);font-size:13.5px;white-space:nowrap}
.spec tr.total td{background:var(--heat-soft);font-weight:700;border-top:2px solid var(--heat)}
.tbl-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
.tbl-scroll .spec{min-width:560px}

/* model chips */
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chips span{font-family:var(--mono);font-size:12.5px;background:#fff;border:1px solid var(--line);color:#2a3a4b;padding:6px 12px;border-radius:3px;letter-spacing:.03em}
.chips.dark span{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.2);color:#dbe4ec}

/* ---------- process line (signature) ---------- */
.procline{display:flex;flex-wrap:wrap;gap:0;counter-reset:step;margin-top:8px}
.procline .st{position:relative;flex:1 1 150px;min-width:148px;padding:20px 26px 20px 18px;border-top:2px solid var(--line);counter-increment:step;background:linear-gradient(to bottom,rgba(20,33,47,.02),transparent)}
.procline .st::before{content:"";position:absolute;top:-6px;left:0;width:10px;height:10px;border-radius:50%;background:var(--chrome);box-shadow:0 0 0 3px #fff}
.procline .st.hot{border-top-color:var(--heat)}
.procline .st.hot::before{background:var(--heat);box-shadow:0 0 0 3px #fff,0 0 12px rgba(255,90,31,.6)}
.procline .st .n{font-family:var(--mono);font-size:11px;color:var(--chrome);letter-spacing:.18em}
.procline .st .n::before{content:"ST." counter(step,decimal-leading-zero)}
.procline .st b{display:block;font-size:15.5px;font-weight:700;color:var(--steel);margin-top:5px}
.procline .st small{display:block;font-size:12px;color:var(--slate);margin-top:4px;line-height:1.5}
.procline .st.hot b{color:var(--heat-deep)}
section.dark .procline .st{border-top-color:rgba(255,255,255,.25);background:none}
section.dark .procline .st b{color:#fff}
section.dark .procline .st small{color:#a7b6c5}
section.dark .procline .st::before{box-shadow:0 0 0 3px var(--steel)}
section.dark .procline .st.hot{border-top-color:var(--heat)}

/* ---------- key/value overview ---------- */
.kv{display:grid;grid-template-columns:150px 1fr;border-top:2px solid var(--steel)}
.kv dt{font-family:var(--mono);font-size:12.5px;letter-spacing:.1em;color:var(--slate);padding:15px 10px 15px 2px;border-bottom:1px solid var(--hairline);text-transform:uppercase}
.kv dd{padding:15px 0;border-bottom:1px solid var(--hairline);font-size:15px;color:#22303f}
.kv dd b{color:var(--steel)}
@media(max-width:560px){.kv{grid-template-columns:1fr}.kv dt{padding-bottom:2px;border-bottom:none}.kv dd{padding-top:2px}}

/* ---------- timeline ---------- */
.tl{border-left:2px solid var(--line);padding-left:26px;display:grid;gap:20px}
.tl .ev{position:relative}
.tl .ev::before{content:"";position:absolute;left:-32px;top:7px;width:10px;height:10px;border-radius:50%;background:var(--chrome);box-shadow:0 0 0 3px #fff}
.tl .ev.hot::before{background:var(--heat)}
.tl .ev .d{font-family:var(--mono);font-size:12.5px;color:var(--heat-deep);letter-spacing:.08em}
.tl .ev p{font-size:15px;color:#22303f;margin-top:2px}
.tl .ev p small{color:var(--slate);display:block;line-height:1.55}

/* ---------- org chart ---------- */
.org{--ob:#c9d4de;text-align:center}
.org .ceo{display:inline-block;background:var(--steel);color:#fff;font-weight:800;padding:12px 44px;border-radius:4px;letter-spacing:.2em;border-bottom:3px solid var(--heat)}
.org .stem{width:2px;height:26px;background:var(--ob);margin:0 auto}
.org .row{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;position:relative;padding-top:26px}
.org .row::before{content:"";position:absolute;top:0;left:12.5%;right:12.5%;height:2px;background:var(--ob)}
.org .unit{position:relative;background:#fff;border:1px solid var(--line);border-radius:5px;padding:14px 12px 16px}
.org .unit::before{content:"";position:absolute;top:-26px;left:50%;width:2px;height:26px;background:var(--ob)}
.org .unit h4{font-size:15px;font-weight:800;color:var(--steel);padding-bottom:9px;border-bottom:2px solid var(--heat)}
.org .unit.adm h4{border-color:var(--chrome)}
.org .unit ul{list-style:none;margin-top:10px;display:grid;gap:5px}
.org .unit li{font-size:12.5px;color:var(--slate);background:var(--paper);border-radius:3px;padding:5px 6px}
.org .unit li.hd{font-weight:700;color:var(--steel);background:var(--heat-soft)}
@media(max-width:860px){.org .row{grid-template-columns:1fr 1fr}.org .row::before{display:none}.org .unit::before{display:none}}
@media(max-width:480px){.org .row{grid-template-columns:1fr}}

/* ---------- vision ---------- */
.vision{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
@media(max-width:820px){.vision{grid-template-columns:1fr}}
.vision .v{background:linear-gradient(160deg,var(--steel2),var(--steel));color:#fff;border-radius:6px;padding:28px 26px 30px;position:relative;overflow:hidden}
.vision .v::after{content:attr(data-n);position:absolute;right:14px;top:2px;font-family:var(--disp);font-weight:700;font-size:74px;color:rgba(255,255,255,.07)}
.vision .v .k{font-family:var(--mono);font-size:11.5px;letter-spacing:.2em;color:#ff9b6e}
.vision .v h3{font-size:21px;font-weight:800;margin-top:8px}
.vision .v ul{list-style:none;margin-top:16px;display:grid;gap:8px}
.vision .v li{font-size:14px;color:#c9d5e1;padding-left:16px;position:relative}
.vision .v li::before{content:"";position:absolute;left:0;top:8px;width:7px;height:2px;background:var(--heat)}

/* ---------- charts ---------- */
.chartbox{background:#fff;border:1px solid var(--line);border-radius:6px;padding:22px 22px 14px}
.chartbox h4{font-size:15px;font-weight:800;color:var(--steel);display:flex;justify-content:space-between;align-items:baseline}
.chartbox h4 span{font-family:var(--mono);font-size:11px;color:var(--chrome);letter-spacing:.1em}
.legend{display:flex;gap:16px;font-family:var(--mono);font-size:11.5px;color:var(--slate);margin-top:6px}
.legend i{display:inline-block;width:10px;height:10px;border-radius:2px;margin-right:6px;vertical-align:-1px}

/* ---------- partner ---------- */
.pcard{background:#fff;border:1px solid var(--line);border-radius:6px;overflow:hidden}
.pcard .hd{background:var(--steel);color:#fff;padding:18px 24px;display:flex;justify-content:space-between;align-items:baseline;flex-wrap:wrap;gap:6px;border-bottom:3px solid var(--heat)}
.pcard .hd h3{font-size:19px;font-weight:800}
.pcard .hd span{font-family:var(--mono);font-size:12px;color:#ffb392;letter-spacing:.1em}
.pcard .bd{padding:22px 24px}
.pcard .cap{display:flex;align-items:baseline;gap:10px;margin-bottom:14px}
.pcard .cap b{font-family:var(--disp);font-size:34px;font-weight:700;color:var(--heat-deep)}
.pcard .cap small{font-family:var(--mono);font-size:12px;color:var(--slate);letter-spacing:.08em}
.pcard ul{list-style:none;display:grid;gap:7px;margin-top:6px}
.pcard li{font-size:14px;color:#2a3a4b;padding-left:16px;position:relative}
.pcard li::before{content:"";position:absolute;left:0;top:9px;width:7px;height:2px;background:var(--heat)}

/* ---------- CTA band ---------- */
.cta{background:linear-gradient(100deg,var(--steel) 40%,#3a2417);color:#fff;position:relative;overflow:hidden}
.cta::after{content:"";position:absolute;right:-60px;top:-60px;width:320px;height:320px;border-radius:50%;background:radial-gradient(circle,rgba(255,90,31,.35),transparent 70%)}
.cta .wrap{position:relative;padding:64px 24px;display:flex;justify-content:space-between;align-items:center;gap:26px;flex-wrap:wrap}
.cta h2{font-size:clamp(22px,3vw,30px);font-weight:800;line-height:1.3}
.cta p{color:#b9c6d4;margin-top:8px;font-size:15px}

/* ---------- footer ---------- */
footer.site{background:var(--ink);color:#93a4b6;font-size:13.5px}
footer.site .wrap{padding:52px 24px 40px;display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:36px}
@media(max-width:800px){footer.site .wrap{grid-template-columns:1fr}}
footer.site h5{font-family:var(--mono);font-size:11px;letter-spacing:.22em;color:#ff9b6e;margin-bottom:14px;text-transform:uppercase}
footer.site .flogo{font-family:var(--disp);font-weight:700;font-size:22px;color:#fff;margin-bottom:10px}
footer.site .flogo i{font-style:normal;color:var(--heat)}
footer.site ul{list-style:none;display:grid;gap:8px}
footer.site a:hover{color:#fff}
footer.site .base{border-top:1px solid rgba(255,255,255,.1);padding:18px 24px;font-family:var(--mono);font-size:11.5px;letter-spacing:.06em;display:flex;justify-content:space-between;gap:10px;flex-wrap:wrap;max-width:1180px;margin:0 auto}

/* misc */
.split{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center}
@media(max-width:860px){.split{grid-template-columns:1fr}}
.framed{border:1px solid var(--line);border-radius:6px;overflow:hidden;position:relative}
.framed .lab{position:absolute;left:12px;bottom:12px;background:rgba(13,20,29,.82);color:#fff;font-family:var(--mono);font-size:11px;letter-spacing:.12em;padding:5px 10px;border-radius:2px}
.note{font-family:var(--mono);font-size:12px;color:var(--slate);margin-top:10px}
.certs{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
@media(max-width:820px){.certs{grid-template-columns:1fr 1fr}}
.cert{background:#fff;border:1px solid var(--line);border-top:3px solid var(--heat);border-radius:5px;padding:20px 18px}
.cert b{display:block;font-size:15.5px;color:var(--steel)}
.cert span{font-family:var(--mono);font-size:11.5px;color:var(--slate);letter-spacing:.06em;display:block;margin-top:6px;line-height:1.6}
.stack24{display:grid;gap:24px}
.stack48{display:grid;gap:48px}
.mt40{margin-top:40px}.mt24{margin-top:24px}.mt16{margin-top:16px}
section.dark .procline .st.hot b{color:#ffb392}