:root {
  --black: #05070a;
  --ink: #101217;
  --white: #fff;
  --paper: #f4f4f1;
  --line: rgba(16, 18, 23, .16);
  --line-dark: rgba(255, 255, 255, .18);
  --blue: #1769ff;
  --acid: #b9e535;
  --brown: #6a431e;
  --muted: #777b84;
  --side: clamp(20px, 5.2vw, 100px);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--white); color: var(--ink); font-family: "Inter", "Noto Sans KR", sans-serif; letter-spacing: 0; }
body.menu-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
button, input, textarea { font: inherit; }
img { max-width: 100%; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }

.site-header {
  position: absolute; z-index: 100; top: 0; left: 0; display: grid;
  grid-template-columns: 1fr auto 1fr; align-items: center; width: 100%; min-height: 92px;
  padding: 0 var(--side); border-bottom: 1px solid rgba(255, 255, 255, .22); color: var(--white);
}
.wordmark { display: flex; align-items: baseline; width: max-content; font-size: 22px; font-weight: 800; line-height: 1; }
.wordmark span:nth-child(2) { margin-left: .22em; color: var(--acid); }
.wordmark small { margin-left: .42em; color: rgba(255, 255, 255, .78); font-size: .55em; font-weight: 600; }
.desktop-nav { display: flex; gap: clamp(24px, 3vw, 54px); align-items: center; }
.desktop-nav a, .header-contact { position: relative; font-size: 12px; font-weight: 700; }
.desktop-nav a::after { position: absolute; right: 0; bottom: -9px; left: 0; height: 1px; background: var(--white); content: ""; transform: scaleX(0); transition: transform 180ms ease; }
.desktop-nav a:hover::after, .desktop-nav a:focus-visible::after { transform: scaleX(1); }
.header-contact { justify-self: end; padding: 13px 0; border-bottom: 1px solid currentColor; }
.header-contact span { margin-left: 8px; color: var(--acid); }
.menu-toggle, .mobile-menu { display: none; }

.hero { position: relative; min-height: min(900px, 100svh); overflow: hidden; background: var(--black) url("/assets/hero.png") center center / cover no-repeat; color: var(--white); }
.hero-shade { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(2, 6, 14, .92) 0%, rgba(2, 6, 14, .62) 36%, rgba(2, 6, 14, .04) 72%); }
.hero-copy { position: absolute; z-index: 1; top: 50%; left: var(--side); width: min(760px, 54%); transform: translateY(-44%); }
.hero-eyebrow, .section-kicker { margin: 0 0 22px; color: var(--blue); font-size: 12px; font-weight: 800; letter-spacing: 0; }
.hero-copy h1 { margin: 0; font-family: "Noto Sans KR", sans-serif; font-size: 72px; font-weight: 800; line-height: 1.17; }
.hero-copy h1 span { display: block; white-space: nowrap; }
.hero-description { max-width: 640px; margin: 28px 0 0; color: rgba(255, 255, 255, .78); font-size: 18px; line-height: 1.75; }
.hero-actions { display: flex; gap: 12px; margin-top: 42px; }
.button { display: inline-flex; align-items: center; justify-content: space-between; gap: 20px; min-width: 200px; min-height: 58px; padding: 0 24px; border: 1px solid transparent; font-size: 14px; font-weight: 800; line-height: 1.4; transition: background 180ms ease, color 180ms ease, border-color 180ms ease; }
.button > span { flex: 0 0 auto; color: inherit; }
.button-primary { background: var(--blue); color: var(--white); }
.button-primary:hover, .button-primary:focus-visible { background: var(--acid); color: var(--ink); }
.button-outline { border-color: var(--white); background: var(--white); color: var(--ink); }
.button-outline:hover, .button-outline:focus-visible { border-color: var(--acid); background: var(--acid); color: var(--ink); }
.hero-index { position: absolute; right: var(--side); bottom: 58px; display: flex; align-items: baseline; gap: 7px; font-size: 12px; }
.hero-index strong { color: var(--acid); font-size: 28px; }
.scroll-cue { position: absolute; bottom: 50px; left: var(--side); font-size: 11px; font-weight: 700; }
.scroll-cue span { margin-left: 12px; color: var(--acid); }

.metrics { display: grid; grid-template-columns: repeat(4, 1fr); border-bottom: 1px solid var(--line); }
.metrics article { min-height: 164px; padding: 38px clamp(20px, 3vw, 58px); border-right: 1px solid var(--line); }
.metrics article:last-child { border-right: 0; }
.metrics strong, .metrics span { display: block; }
.metrics strong { margin-bottom: 19px; font-size: clamp(32px, 3vw, 52px); line-height: 1; }
.metrics span { color: var(--muted); font-size: 11px; font-weight: 700; }

.heritage { display: grid; grid-template-columns: 1.12fr .88fr; min-height: 740px; background: var(--black); color: var(--white); }
.heritage-copy, .heritage-mark { display: flex; flex-direction: column; justify-content: center; padding: 100px var(--side); }
.heritage-copy { border-right: 1px solid var(--line-dark); }
.heritage h2, .section-heading h2, .process-heading h2, .network-intro h2, .contact h2 { margin: 0; font-family: "Noto Sans KR", sans-serif; font-size: clamp(42px, 4.7vw, 78px); font-weight: 800; line-height: 1.18; }
.heritage-copy > p:not(.section-kicker) { max-width: 660px; margin: 38px 0 0; color: rgba(255, 255, 255, .66); font-size: 17px; line-height: 1.9; word-break: keep-all; overflow-wrap: break-word; }
.text-link { width: max-content; margin-top: 40px; padding-bottom: 8px; border-bottom: 1px solid var(--white); font-size: 13px; font-weight: 800; }
.text-link span { margin-left: 18px; color: var(--acid); }
.heritage-actions { display: flex; flex-wrap: wrap; gap: 22px 34px; margin-top: 40px; }
.heritage-actions .text-link { margin-top: 0; white-space: nowrap; }
.heritage-mark { align-items: center; text-align: center; }
.logo-symbol { display: grid; width: min(330px, 70%); aspect-ratio: 1; place-items: center; border-radius: 50%; background: var(--brown); color: var(--white); font-size: clamp(72px, 8vw, 130px); font-weight: 800; letter-spacing: -.08em; }
.heritage-mark p { margin: 36px 0 7px; font-size: 27px; font-weight: 800; }
.heritage-mark span { color: rgba(255, 255, 255, .52); font-size: 10px; font-weight: 700; letter-spacing: .12em; }

.capabilities, .archive, .collection, .brand-network { padding: 130px var(--side); }
.section-heading { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(280px, .75fr); align-items: end; gap: 60px; margin-bottom: 74px; }
.section-heading > p { max-width: 520px; margin: 0 0 6px; color: var(--muted); font-size: 16px; line-height: 1.85; }
.capability-grid { display: grid; grid-template-columns: repeat(2, 1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.capability-card { position: relative; display: grid; grid-template-columns: auto 1fr auto; gap: 28px; min-height: 290px; padding: 42px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); transition: background 200ms ease, color 200ms ease; }
.capability-card:hover, .capability-card:focus-visible { background: var(--black); color: var(--white); }
.capability-card:hover span, .capability-card:focus-visible span { color: rgba(255, 255, 255, .58); }
.capability-number { color: var(--blue); font-size: 12px; font-weight: 800; }
.capability-card p { margin: 0 0 26px; color: var(--blue); font-size: 11px; font-weight: 800; }
.capability-card h3 { margin: 0 0 14px; font-size: clamp(24px, 2vw, 34px); }
.capability-card div span { color: var(--muted); font-size: 14px; line-height: 1.7; }
.capability-card b { align-self: end; color: var(--blue); font-size: 22px; }

.process { display: grid; grid-template-columns: .72fr 1.28fr; background: #0b1017; color: var(--white); }
.process-heading { padding: 120px var(--side); border-right: 1px solid var(--line-dark); }
.process-list { margin: 0; padding: 0; list-style: none; }
.process-list li { display: grid; grid-template-columns: 54px minmax(160px, .7fr) 1fr; gap: 26px; align-items: center; min-height: 120px; padding: 20px var(--side) 20px clamp(30px, 4vw, 70px); border-bottom: 1px solid var(--line-dark); }
.process-list li:last-child { border-bottom: 0; }
.process-list span { color: var(--blue); font-size: 12px; font-weight: 800; }
.process-list strong { font-size: 20px; }
.process-list p { margin: 0; color: rgba(255, 255, 255, .56); font-size: 14px; }

.archive { overflow: hidden; background: var(--paper); }
.archive-track { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 12px; }
.archive-card { overflow: hidden; border: 1px solid var(--line); background: var(--white); text-align: center; }
.archive-image { overflow: hidden; aspect-ratio: 1; background: var(--white); }
.archive-image img { display: block; width: 100%; height: 100%; object-fit: contain; transition: transform 300ms ease; }
.archive-card:hover img { transform: scale(1.045); }
.archive-card h3 { display: grid; min-height: 68px; margin: 0; padding: 14px 8px; place-items: center; border-top: 1px solid var(--line); font-size: 14px; }

.collection { background: var(--white); }
.product-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; }
.product-card:first-child { grid-column: span 2; grid-row: span 2; }
.product-image { overflow: hidden; aspect-ratio: 1; background: #f4f3f1; }
.product-image img { display: block; width: 100%; height: 100%; object-fit: cover; transition: transform 300ms ease; }
.product-card:hover img { transform: scale(1.035); }
.product-card h3 { margin: 17px 0 0; font-size: 14px; line-height: 1.45; }
.collection-link { display: flex; align-items: center; justify-content: space-between; width: min(420px, 100%); min-height: 68px; margin: 64px 0 0 auto; padding: 0 24px; border-bottom: 1px solid var(--ink); font-size: 14px; font-weight: 800; }
.collection-link span { color: var(--blue); }

.brand-network { display: grid; grid-template-columns: .95fr 1.05fr; gap: clamp(48px, 6vw, 110px); background: #e9edf2; }
.network-intro h2 { font-size: clamp(42px, 4vw, 68px); }
.network-intro h2 span { display: block; white-space: nowrap; }
.network-links { border-top: 1px solid var(--line); }
.network-links a { display: grid; grid-template-columns: minmax(120px, .7fr) minmax(180px, 1fr) auto; align-items: center; gap: 24px; min-height: 118px; border-bottom: 1px solid var(--line); }
.network-links span, .network-links b { font-size: 10px; font-weight: 800; }
.network-links span { color: var(--blue); }
.network-links strong { font-size: clamp(24px, 2.5vw, 42px); }
.network-links b { color: var(--muted); }

.contact { padding: 150px var(--side); background: var(--blue); color: var(--white); text-align: center; }
.contact .section-kicker { color: var(--acid); }
.contact > p:not(.section-kicker) { margin: 36px 0 0; color: rgba(255, 255, 255, .74); font-size: 17px; line-height: 1.85; }
.contact .button { margin-top: 46px; border-color: var(--white); background: var(--white); color: var(--ink); }
.contact .button:hover { border-color: var(--acid); background: var(--acid); }
.contact-actions { display: flex; align-items: center; justify-content: center; gap: 34px; margin-top: 46px; }
.contact-actions .button { margin-top: 0; }
.contact-secondary { padding: 12px 0; border: 0; border-bottom: 1px solid rgba(255, 255, 255, .72); background: transparent; color: inherit; font-size: 13px; font-weight: 800; cursor: pointer; }
.contact-secondary span { margin-left: 16px; color: var(--acid); }

.site-footer { padding: 70px var(--side) 30px; background: var(--black); color: var(--white); }
.footer-main { display: flex; align-items: flex-end; justify-content: space-between; padding-bottom: 52px; border-bottom: 1px solid var(--line-dark); }
.footer-brand { margin: 0; font-size: clamp(42px, 5vw, 82px); font-weight: 800; line-height: .9; }
.footer-main > p:last-child { margin: 0; color: var(--acid); font-size: 11px; font-weight: 800; }
.footer-details { display: grid; grid-template-columns: 1fr 1.5fr .7fr; gap: 40px; padding: 42px 0; }
.footer-details span { display: block; margin-bottom: 13px; color: rgba(255, 255, 255, .42); font-size: 10px; font-weight: 800; }
.footer-details p, .footer-details a { margin: 0; font-size: 13px; line-height: 1.6; }
.footer-bottom { display: flex; justify-content: space-between; padding-top: 22px; border-top: 1px solid var(--line-dark); color: rgba(255, 255, 255, .42); font-size: 10px; }

.inquiry-trigger { cursor: pointer; }
.inquiry-fab { position: fixed; z-index: 180; right: 28px; bottom: 28px; display: grid; width: 68px; height: 68px; padding: 0; place-items: center; border: 0; border-radius: 50%; background: var(--acid); box-shadow: 0 14px 38px rgba(5, 7, 10, .28); cursor: pointer; transition: transform 180ms ease, background 180ms ease; }
.inquiry-fab:hover, .inquiry-fab:focus-visible { background: var(--white); transform: translateY(-3px); }
.inquiry-fab-icon { display: block; width: 30px; height: 24px; fill: none; stroke: var(--ink); stroke-linecap: round; stroke-linejoin: round; stroke-width: 2.5; }

.reveal { opacity: 0; transform: translateY(22px); transition: opacity 600ms ease, transform 600ms ease; }
.reveal.is-visible { opacity: 1; transform: translateY(0); }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .archive-image img, .product-image img { transition: none; }
}

@media (max-width: 980px) {
  .site-header { grid-template-columns: 1fr auto; min-height: 74px; }
  .desktop-nav, .header-contact { display: none; }
  .menu-toggle { display: grid; width: 40px; height: 40px; padding: 10px 4px; border: 0; background: transparent; cursor: pointer; }
  .menu-toggle > span:not(.sr-only) { display: block; height: 1px; background: var(--white); }
  .menu-toggle.is-open { display: flex; align-items: center; justify-content: flex-end; width: auto; color: var(--white); font-size: 11px; font-weight: 800; }
  .menu-toggle.is-open > span:not(.sr-only) { display: none; }
  .menu-toggle.is-open::after { content: "CLOSE"; }
  .mobile-menu { position: fixed; z-index: 99; inset: 0; display: flex; flex-direction: column; justify-content: center; padding: 90px var(--side) 50px; background: var(--black); color: var(--white); }
  .mobile-menu[hidden] { display: none; }
  .mobile-menu a { padding: 16px 0; border-bottom: 1px solid var(--line-dark); font-size: clamp(28px, 7vw, 48px); font-weight: 800; }
  .hero-copy h1 { font-size: 56px; }
  .metrics { grid-template-columns: repeat(2, 1fr); }
  .metrics article:nth-child(2) { border-right: 0; }
  .metrics article:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .heritage, .process, .brand-network { grid-template-columns: 1fr; }
  .heritage-copy { border-right: 0; border-bottom: 1px solid var(--line-dark); }
  .process-heading { border-right: 0; border-bottom: 1px solid var(--line-dark); }
  .capability-card { min-height: 250px; padding: 32px; }
  .product-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .product-card:first-child { grid-column: span 2; grid-row: auto; }
  .archive-track { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

@media (max-width: 640px) {
  :root { --side: 20px; }
  .wordmark { font-size: 19px; }
  .hero { min-height: 790px; background-position: 63% center; }
  .hero-shade { background: linear-gradient(180deg, rgba(2, 6, 14, .08) 0%, rgba(2, 6, 14, .38) 42%, rgba(2, 6, 14, .96) 75%, rgba(2, 6, 14, 1) 100%); }
  .hero-copy { top: auto; right: var(--side); bottom: 72px; width: auto; transform: none; }
  .hero-eyebrow { margin-bottom: 16px; font-size: 10px; line-height: 1.4; }
  .hero-copy h1 { font-size: 34px; line-height: 1.24; }
  .hero-description { max-width: 340px; margin-top: 20px; font-size: 14px; line-height: 1.75; }
  .hero-actions { display: grid; gap: 8px; margin-top: 28px; }
  .button { width: 100%; min-height: 54px; }
  .hero-index, .scroll-cue { display: none; }
  .metrics article { min-height: 125px; padding: 26px 20px; }
  .metrics strong { margin-bottom: 13px; font-size: 30px; }
  .metrics span { font-size: 9px; line-height: 1.4; }
  .heritage-copy, .heritage-mark, .capabilities, .archive, .collection, .brand-network { padding: 84px var(--side); }
  .heritage h2, .section-heading h2, .process-heading h2, .network-intro h2, .contact h2 { font-size: 38px; }
  .heritage-copy > p:not(.section-kicker) { margin-top: 27px; font-size: 14px; line-height: 1.8; }
  .heritage-mark { min-height: 480px; }
  .logo-symbol { width: 220px; }
  .section-heading { grid-template-columns: 1fr; gap: 26px; margin-bottom: 48px; }
  .section-heading > p { font-size: 14px; }
  .capability-grid { grid-template-columns: 1fr; }
  .capability-card { grid-template-columns: 34px 1fr auto; gap: 14px; min-height: 220px; padding: 30px 22px; }
  .capability-card p { margin-bottom: 17px; }
  .capability-card h3 { font-size: 24px; }
  .process-heading { padding: 84px var(--side) 60px; }
  .process-list li { grid-template-columns: 34px 1fr; gap: 14px; padding: 26px var(--side); }
  .process-list li p { grid-column: 2; }
  .archive-track { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
  .archive-card h3 { min-height: 52px; padding: 10px 6px; font-size: 12px; }
  .product-grid { gap: 10px; }
  .product-card h3 { margin-top: 11px; font-size: 11px; }
  .collection-link { margin-top: 42px; }
  .brand-network { gap: 54px; }
  .network-intro h2 { max-width: 100%; font-size: 30px; line-height: 1.28; word-break: keep-all; overflow-wrap: normal; }
  .network-intro h2 span { white-space: normal; }
  .network-links a { grid-template-columns: 1fr auto; gap: 8px 20px; min-height: 102px; }
  .network-links span, .network-links strong { grid-column: 1; }
  .network-links strong { font-size: 27px; }
  .network-links b { grid-column: 2; grid-row: 1 / span 2; }
  .contact { padding: 100px var(--side); text-align: left; }
  .contact > p:not(.section-kicker) { font-size: 14px; }
  .contact-actions { display: grid; justify-content: stretch; gap: 22px; margin-top: 38px; }
  .contact-secondary { width: max-content; }
  .inquiry-fab { right: 16px; bottom: 16px; width: 60px; height: 60px; }
  .site-footer { padding: 58px var(--side) 26px; }
  .footer-main { display: block; }
  .footer-main > p:last-child { margin-top: 20px; }
  .footer-details { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom { display: block; line-height: 1.8; }
}