:root {
  --ink: #14261e;
  --forest: #102c21;
  --forest-deep: #091d16;
  --green: #87aa83;
  --lime: #c9dc96;
  --paper: #f3f1e9;
  --cream: #e9e5d8;
  --white: #f8f8f3;
  --line: rgba(20, 38, 30, .16);
  --sans: "Manrope", "Noto Sans KR", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: var(--sans); -webkit-font-smoothing: antialiased; }
body.menu-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
img { display: block; width: 100%; }

.site-header { position: fixed; inset: 0 0 auto; z-index: 50; color: var(--white); transition: background .35s ease, color .35s ease, border-color .35s ease; }
.site-header.scrolled { color: var(--ink); background: rgba(243, 241, 233, .88); border-bottom: 1px solid var(--line); backdrop-filter: blur(16px); }
.header-inner { width: min(100% - 64px, 1440px); height: 84px; margin: auto; display: flex; align-items: center; }
.logo { display: flex; align-items: center; gap: 12px; font-size: 22px; font-weight: 700; letter-spacing: -.8px; }
.logo-mark { width: 18px; height: 24px; display: inline-block; position: relative; border: 1.5px solid currentColor; border-radius: 100% 0 100% 0; transform: rotate(-13deg); }
.logo-mark::after { content: ""; position: absolute; width: 1px; height: 19px; background: currentColor; left: 8px; bottom: -5px; transform: rotate(30deg); transform-origin: bottom; }
.main-menu { display: flex; gap: clamp(24px, 3vw, 50px); margin-left: auto; margin-right: clamp(34px, 5vw, 76px); }
.main-menu a { position: relative; font-size: 12px; font-weight: 600; letter-spacing: .05em; }
.main-menu a::after { content: ""; position: absolute; height: 1px; left: 0; right: 100%; bottom: -6px; background: currentColor; transition: right .25s ease; }
.main-menu a:hover::after { right: 0; }
.header-contact { min-width: 132px; padding: 12px 17px; border: 1px solid currentColor; display: flex; align-items: center; justify-content: space-between; font-size: 12px; font-weight: 600; transition: background .25s, color .25s; }
.header-contact:hover { color: var(--forest); background: var(--lime); border-color: var(--lime); }
.menu-toggle { display: none; }

.hero { min-height: 780px; height: 100svh; position: relative; overflow: hidden; color: var(--white); background: var(--forest-deep); }
.hero::before { content: ""; position: absolute; inset: 0; opacity: .07; background-image: linear-gradient(rgba(255,255,255,.3) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.3) 1px, transparent 1px); background-size: 72px 72px; mask-image: linear-gradient(90deg,#000,transparent 62%); }
.hero-orbit { position: absolute; border: 1px solid rgba(201,220,150,.16); border-radius: 50%; pointer-events: none; }
.orbit-one { width: 680px; height: 680px; left: -290px; top: 68px; }
.orbit-two { width: 310px; height: 310px; left: -102px; top: 250px; }
.hero-inner { width: min(100% - 64px, 1440px); height: calc(100% - 80px); margin: auto; padding-top: 84px; display: grid; grid-template-columns: .9fr 1.1fr; align-items: center; gap: 7vw; }
.hero-copy { position: relative; z-index: 2; padding-left: clamp(0px, 4vw, 58px); }
.eyebrow { display: flex; align-items: center; gap: 12px; margin: 0 0 28px; font-size: 10px; font-weight: 700; letter-spacing: .2em; }
.eyebrow > span { width: 28px; height: 1px; background: currentColor; }
.hero h1 { margin: 0; font-size: clamp(66px, 7.3vw, 116px); font-weight: 500; line-height: .87; letter-spacing: -.075em; }
.hero h1 em, .intro h2 em, .business-heading h2 em, .process-header h2 em, .contact h2 em { color: var(--lime); font-style: italic; font-weight: 400; }
.hero-kicker { margin: 40px 0 18px; font-size: clamp(22px, 2vw, 30px); line-height: 1.42; letter-spacing: -.05em; font-weight: 600; }
.hero-description { color: rgba(248,248,243,.62); font-size: 13px; line-height: 1.9; }
.hero-actions { display: flex; align-items: center; gap: 30px; margin-top: 34px; }
.button { min-width: 190px; padding: 16px 18px; display: inline-flex; align-items: center; justify-content: space-between; gap: 32px; font-size: 11px; font-weight: 700; letter-spacing: .04em; transition: transform .25s ease, background .25s ease; }
.button:hover { transform: translateY(-2px); }
.button-light { color: var(--forest); background: var(--lime); }
.button-light:hover { background: #d9e9ad; }
.button-dark { color: var(--white); background: var(--forest); }
.text-link { color: rgba(248,248,243,.76); font-size: 11px; border-bottom: 1px solid rgba(248,248,243,.35); padding: 10px 0 7px; }
.text-link span { margin-left: 16px; }
.hero-visual { height: min(70vh, 650px); position: relative; }
.hero-image-main { height: 82%; width: 77%; margin: 0 0 0 auto; position: relative; overflow: hidden; }
.hero-image-main::after, .hero-image-sub::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 60%, rgba(9,29,22,.28)); }
.hero-image-main img, .hero-image-sub img { height: 100%; object-fit: cover; filter: saturate(.74) contrast(1.03); }
.hero-image-sub { position: absolute; width: 38%; height: 40%; left: 0; bottom: 0; overflow: hidden; border: 8px solid var(--forest-deep); }
.hero-note { position: absolute; right: 4%; bottom: 1%; width: 38%; min-height: 112px; padding: 16px 0 0 18px; border-top: 1px solid rgba(248,248,243,.25); display: flex; justify-content: space-between; gap: 20px; }
.hero-note span { color: var(--lime); font-size: 10px; }
.hero-note p { margin: 0; font-size: 12px; line-height: 1.65; letter-spacing: .06em; text-transform: uppercase; }
.hero-footer { height: 80px; padding: 0 max(32px, calc((100% - 1440px)/2)); display: flex; align-items: center; justify-content: space-between; border-top: 1px solid rgba(248,248,243,.13); color: rgba(248,248,243,.5); font-size: 9px; letter-spacing: .16em; }
.scroll-label i { display: inline-block; color: var(--lime); font-size: 15px; font-style: normal; margin-left: 12px; animation: bounce 1.8s infinite; }
@keyframes bounce { 50% { transform: translateY(5px); } }

.section { padding: 150px max(32px, calc((100% - 1320px)/2)); }
.section-label { display: flex; align-items: center; gap: 15px; font-size: 10px; font-weight: 700; letter-spacing: .17em; }
.section-label span { color: #718479; }
.section-label.light { color: rgba(248,248,243,.62); }
.section-label.light span { color: var(--lime); }
.intro-grid { display: grid; grid-template-columns: 1fr .9fr; gap: 12vw; align-items: end; margin-top: 66px; }
.intro h2 { margin: 0; font-size: clamp(48px, 5.7vw, 78px); font-weight: 500; line-height: 1.05; letter-spacing: -.07em; }
.intro h2 em { color: #6d8c72; }
.intro-copy { max-width: 500px; padding-bottom: 6px; }
.intro-copy .lead { margin: 0 0 26px; font-size: 24px; font-weight: 600; line-height: 1.55; letter-spacing: -.045em; }
.intro-copy > p:not(.lead) { margin: 0; color: #59675f; font-size: 14px; line-height: 2; }
.arrow-link { width: 100%; margin-top: 42px; padding: 17px 0; display: flex; justify-content: space-between; border-top: 1px solid var(--ink); font-size: 12px; font-weight: 700; }
.principles { margin-top: 110px; display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); }
.principles article { min-height: 350px; padding: 34px 36px 30px 0; border-right: 1px solid var(--line); position: relative; }
.principles article + article { padding-left: 36px; }
.principles article:last-child { border: 0; }
.principles span { color: #79877f; font-size: 10px; }
.principles h3 { margin: 74px 0 34px; font-size: 34px; line-height: 1.05; letter-spacing: -.05em; font-weight: 500; }
.principles p { color: #657169; font-size: 12px; line-height: 1.85; }

.technology { min-height: 800px; display: grid; grid-template-columns: 1fr 1fr; color: var(--white); background: var(--forest); }
.technology-image { min-height: 800px; position: relative; overflow: hidden; }
.technology-image::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 55%, rgba(9,29,22,.6)); }
.technology-image img { height: 100%; object-fit: cover; filter: saturate(.65) contrast(1.05); }
.image-caption { position: absolute; z-index: 1; inset: auto 38px 28px; display: flex; justify-content: space-between; color: rgba(248,248,243,.7); font-size: 9px; letter-spacing: .13em; text-transform: uppercase; }
.technology-copy { padding: 76px clamp(44px, 7vw, 118px); display: flex; flex-direction: column; justify-content: center; }
.technology-copy .green { color: var(--lime); margin-top: 90px; }
.technology-copy h2 { margin: 0 0 30px; font-size: clamp(38px, 4vw, 58px); line-height: 1.2; letter-spacing: -.06em; font-weight: 500; }
.technology-copy > p:not(.eyebrow) { max-width: 520px; color: rgba(248,248,243,.62); font-size: 13px; line-height: 2; }
.tech-list { margin-top: 48px; border-top: 1px solid rgba(248,248,243,.2); }
.tech-list div { padding: 18px 0; display: flex; gap: 30px; border-bottom: 1px solid rgba(248,248,243,.2); }
.tech-list b { color: var(--lime); font-size: 10px; }
.tech-list span { font-size: 12px; line-height: 1.55; }

.section-top { display: flex; justify-content: space-between; align-items: start; }
.section-top p { margin: 0; color: #657169; font-size: 13px; line-height: 1.8; }
.business-heading { margin: 70px 0 62px; display: flex; align-items: end; justify-content: space-between; }
.business-heading h2 { margin: 0; font-size: clamp(52px, 6.5vw, 88px); line-height: .96; letter-spacing: -.075em; font-weight: 500; }
.business-heading h2 em { color: #6d8c72; }
.business-heading > span { max-width: 200px; color: #657169; font-size: 11px; line-height: 1.8; }
.business-grid { display: grid; grid-template-columns: 1.35fr 1fr; grid-template-rows: repeat(2, 340px); gap: 16px; }
.business-card { position: relative; overflow: hidden; color: var(--white); background: #d6d2c7; }
.business-card.large { grid-row: 1 / 3; }
.business-card img { height: 100%; object-fit: cover; transition: transform .8s cubic-bezier(.2,.7,.2,1); }
.business-card.large img { object-position: 54% center; }
.business-card:hover img { transform: scale(1.035); }
.card-overlay { position: absolute; inset: 0; background: linear-gradient(180deg, rgba(9,29,22,.03) 35%, rgba(9,29,22,.8)); }
.card-number { position: absolute; left: 25px; top: 22px; font-size: 10px; }
.card-copy { position: absolute; inset: auto 28px 26px; }
.card-copy p { margin: 0 0 11px; color: var(--lime); font-size: 9px; font-weight: 700; letter-spacing: .16em; }
.card-copy h3 { margin: 0 0 13px; font-size: clamp(22px, 2.2vw, 32px); line-height: 1.32; letter-spacing: -.045em; font-weight: 500; }
.card-copy span { color: rgba(248,248,243,.58); font-size: 9px; letter-spacing: .07em; }
.business-card.plain { color: var(--ink); background: var(--cream); }
.business-card.plain .card-copy p { color: #65806c; }
.business-card.plain .card-copy span { color: #68746d; }
.business-card.plain > a { position: absolute; right: 28px; top: 24px; width: 42px; height: 42px; display: grid; place-items: center; border: 1px solid var(--line); border-radius: 50%; transition: .25s; }
.business-card.plain > a:hover { color: var(--white); background: var(--forest); }

.process { color: var(--white); background: var(--forest-deep); }
.process-header { display: flex; justify-content: space-between; align-items: end; }
.process-header h2 { margin: 60px 0 0; font-size: clamp(48px, 5.5vw, 74px); line-height: 1.04; letter-spacing: -.07em; font-weight: 500; }
.process-header > p { margin: 0 0 8px; color: rgba(248,248,243,.58); font-size: 12px; line-height: 1.9; }
.process-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-top: 80px; }
.process-grid figure { height: 260px; margin: 0 0 24px; position: relative; overflow: hidden; background: #17382c; }
.process-grid img { height: 100%; object-fit: cover; filter: saturate(.45); transition: filter .4s, transform .6s; }
.process-grid article:hover img { filter: saturate(.9); transform: scale(1.04); }
.process-grid figure span { position: absolute; top: 14px; left: 14px; width: 32px; height: 32px; display: grid; place-items: center; color: var(--forest); background: var(--lime); font-size: 9px; border-radius: 50%; }
.process-grid h3 { margin: 0 0 12px; font-size: 18px; font-weight: 500; }
.process-grid p { margin: 0; color: rgba(248,248,243,.5); font-size: 11px; line-height: 1.7; }

.contact { min-height: 680px; padding: 150px 32px; display: grid; place-items: center; position: relative; overflow: hidden; text-align: center; background: var(--lime); }
.contact::before, .contact::after { content: ""; position: absolute; width: 600px; height: 600px; border: 1px solid rgba(20,38,30,.14); border-radius: 50%; }
.contact::before { left: -300px; top: -240px; }
.contact::after { right: -310px; bottom: -300px; }
.contact-inner { position: relative; z-index: 1; }
.contact .eyebrow { justify-content: center; margin-bottom: 35px; }
.contact h2 { margin: 0; font-size: clamp(46px, 6vw, 82px); line-height: 1.08; letter-spacing: -.07em; font-weight: 500; }
.contact h2 em { color: #587361; }
.contact-inner > p:not(.eyebrow) { margin: 30px 0 40px; color: #506258; font-size: 13px; }
.contact-actions { display: flex; align-items: center; justify-content: center; gap: 30px; }
.contact-actions > span { color: #68796d; font-size: 8px; letter-spacing: .12em; }

.footer { padding: 65px max(32px, calc((100% - 1320px)/2)) 30px; display: grid; grid-template-columns: 1fr 1fr; align-items: start; color: var(--white); background: var(--forest-deep); }
.footer-brand { display: flex; align-items: center; gap: 13px; font-size: 24px; }
.footer p { margin: 9px 0 0; color: rgba(248,248,243,.45); font-size: 11px; }
.footer-links { display: flex; justify-content: flex-end; gap: 34px; font-size: 10px; }
.footer small { grid-column: 1 / -1; margin-top: 80px; padding-top: 18px; border-top: 1px solid rgba(248,248,243,.13); color: rgba(248,248,243,.32); font-size: 9px; }

.reveal { opacity: 0; transform: translateY(24px); transition: opacity .8s ease, transform .8s cubic-bezier(.2,.7,.2,1); }
.reveal.visible { opacity: 1; transform: none; }
.principles .reveal:nth-child(2), .process-grid .reveal:nth-child(2) { transition-delay: .08s; }
.principles .reveal:nth-child(3), .process-grid .reveal:nth-child(3) { transition-delay: .16s; }
.process-grid .reveal:nth-child(4) { transition-delay: .24s; }

@media (max-width: 980px) {
  .header-inner { width: calc(100% - 40px); height: 72px; }
  .main-menu { margin-right: 25px; gap: 22px; }
  .hero { min-height: 720px; }
  .hero-inner { width: calc(100% - 40px); grid-template-columns: 1fr 1fr; gap: 30px; }
  .hero-copy { padding-left: 0; }
  .hero h1 { font-size: 70px; }
  .hero-image-main { width: 88%; }
  .intro-grid { gap: 7vw; }
  .principles article { padding-right: 20px; }
  .principles article + article { padding-left: 20px; }
  .technology-copy { padding: 60px 42px; }
  .process-grid { grid-template-columns: repeat(2, 1fr); row-gap: 42px; }
}

@media (max-width: 760px) {
  .site-header { color: var(--white); }
  .site-header.scrolled { color: var(--ink); }
  .header-inner { width: calc(100% - 36px); height: 64px; }
  .logo { font-size: 20px; }
  .logo-mark { width: 15px; height: 20px; }
  .header-contact { display: none; }
  .menu-toggle { margin-left: auto; width: 28px; height: 28px; padding: 7px 2px; display: flex; flex-direction: column; justify-content: space-around; border: 0; color: inherit; background: transparent; }
  .menu-toggle span { height: 1px; width: 100%; background: currentColor; transition: transform .25s; }
  .menu-toggle[aria-expanded="true"] span:first-child { transform: translateY(3.5px) rotate(45deg); }
  .menu-toggle[aria-expanded="true"] span:last-child { transform: translateY(-3.5px) rotate(-45deg); }
  .main-menu { display: none; position: fixed; inset: 64px 0 0; margin: 0; padding: 50px 24px; flex-direction: column; gap: 0; color: var(--white); background: var(--forest-deep); }
  .main-menu.open { display: flex; }
  .main-menu a { padding: 18px 0; border-bottom: 1px solid rgba(248,248,243,.15); font-size: 24px; letter-spacing: -.03em; }
  .site-header:has(.main-menu.open) { color: var(--white); background: var(--forest-deep); }

  .hero { height: auto; min-height: 800px; }
  .hero::before { background-size: 48px 48px; }
  .orbit-one { left: -480px; }
  .hero-inner { height: auto; width: calc(100% - 36px); min-height: 755px; padding: 108px 0 55px; display: flex; flex-direction: column; align-items: stretch; gap: 42px; }
  .hero h1 { font-size: clamp(56px, 16vw, 68px); letter-spacing: -.08em; }
  .hero-kicker { margin-top: 30px; font-size: 22px; }
  .hero-description { font-size: 12px; }
  .desktop-only { display: none; }
  .hero-actions { gap: 22px; }
  .button { min-width: 178px; }
  .hero-visual { height: 350px; }
  .hero-image-main { width: 82%; height: 84%; }
  .hero-image-sub { width: 42%; height: 43%; border-width: 5px; }
  .hero-note { display: none; }
  .hero-footer { display: none; }

  .section { padding: 96px 20px; }
  .intro-grid { display: block; margin-top: 44px; }
  .intro h2 { font-size: 48px; }
  .intro-copy { margin-top: 55px; }
  .intro-copy .lead { font-size: 20px; }
  .principles { grid-template-columns: 1fr; margin-top: 75px; }
  .principles article, .principles article + article { min-height: 250px; padding: 27px 5px; border-right: 0; border-bottom: 1px solid var(--line); }
  .principles h3 { margin: 44px 0 22px; }

  .technology { display: flex; flex-direction: column; }
  .technology-image { min-height: 480px; }
  .technology-copy { padding: 76px 20px 90px; }
  .technology-copy .green { margin-top: 70px; }
  .technology-copy h2 { font-size: 38px; }
  .tech-list { margin-top: 36px; }

  .section-top p { display: none; }
  .business-heading { margin: 50px 0 40px; display: block; }
  .business-heading h2 { font-size: 52px; }
  .business-heading > span { display: block; margin-top: 30px; }
  .business-grid { display: flex; flex-direction: column; }
  .business-card, .business-card.large { height: 440px; }
  .business-card.plain { height: 310px; }
  .business-card.large img { object-position: center; }
  .card-copy h3 { font-size: 25px; }

  .process-header { display: block; }
  .process-header h2 { margin-top: 42px; font-size: 48px; }
  .process-header > p { margin-top: 30px; }
  .process-grid { grid-template-columns: 1fr 1fr; gap: 36px 10px; margin-top: 55px; }
  .process-grid figure { height: 180px; margin-bottom: 18px; }
  .process-grid p { display: none; }

  .contact { min-height: 620px; padding: 90px 20px; }
  .contact h2 { font-size: 46px; }
  .contact-actions { flex-direction: column; }
  .contact-actions > span { line-height: 1.6; }

  .footer { padding: 50px 20px 24px; grid-template-columns: 1fr; }
  .footer-links { margin-top: 42px; justify-content: flex-start; flex-wrap: wrap; gap: 18px 28px; }
  .footer small { margin-top: 55px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
}