@import url('https://fonts.googleapis.com/css2?family=Manrope:wght@600;700&family=Noto+Sans+KR:wght@400;500;600;700&display=swap');

:root {
  --ink: #101713;
  --ink-soft: #243028;
  --green: #00753d;
  --green-dark: #004e2d;
  --lime: #8bc711;
  --paper: #f2f2ed;
  --white: #fff;
  --muted: #69736b;
  --line: #d8ddd8;
  --max: 1240px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: "Noto Sans KR", system-ui, sans-serif; font-size: 16px; line-height: 1.72; word-break: keep-all; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
figure, dl, dd { margin: 0; }
section { scroll-margin-top: 82px; }
.skip-link { position: fixed; left: 1rem; top: -5rem; z-index: 100; padding: .75rem 1rem; background: white; border: 1px solid var(--ink); }
.skip-link:focus { top: 1rem; }

.site-header { position: sticky; top: 0; z-index: 20; height: 82px; padding: 0 max(28px, calc((100vw - var(--max)) / 2)); display: flex; align-items: center; gap: 36px; background: rgba(255,255,255,.96); border-bottom: 1px solid var(--line); backdrop-filter: blur(12px); }
.brand { width: 224px; }
.brand img { width: 100%; height: 58px; object-fit: contain; }
.site-header nav { display: flex; gap: clamp(22px, 3vw, 48px); margin-left: auto; }
.site-header nav a { position: relative; color: #485149; font-size: .91rem; font-weight: 600; }
.site-header nav a::after { content: ""; position: absolute; left: 0; right: 100%; bottom: -9px; height: 2px; background: var(--green); transition: right .2s ease; }
.site-header nav a:hover::after, .site-header nav a:focus-visible::after { right: 0; }
.header-contact { padding: 10px 17px; color: white; background: var(--green); font: 700 .75rem/1.2 "Manrope", sans-serif; letter-spacing: .12em; }

.hero { display: grid; grid-template-columns: 57% 43%; min-height: 770px; color: white; background: var(--ink); }
.hero-copy { display: flex; flex-direction: column; justify-content: center; padding: 90px max(50px, calc((100vw - var(--max)) / 2)) 150px; background: linear-gradient(135deg, #0d1510 0%, #14231a 70%, #183021 100%); }
.eyebrow { margin: 0 0 28px; color: #b5df59; font: 700 .76rem/1.3 "Manrope", sans-serif; letter-spacing: .18em; }
.hero h1, .section h2, .contact h2 { margin: 0; line-height: 1.18; letter-spacing: -.055em; }
.hero h1 { font-size: clamp(3rem, 5.25vw, 5rem); font-weight: 600; }
.hero h1 em { color: #d0eaa0; font-style: normal; }
.hero-lead { max-width: 650px; margin: 34px 0 0; color: rgba(255,255,255,.7); font-size: 1.08rem; }
.hero-actions { display: flex; gap: 12px; margin-top: 42px; }
.button { display: inline-flex; align-items: center; justify-content: center; min-width: 150px; min-height: 50px; padding: 12px 22px; border: 1px solid transparent; font-weight: 700; font-size: .9rem; transition: transform .2s ease, background .2s ease; }
.button:hover { transform: translateY(-2px); }
.button-primary { color: #13220f; background: var(--lime); }
.button-primary:hover { background: #a1d62f; }
.button-outline { color: white; border-color: rgba(255,255,255,.35); }
.hero-image { position: relative; min-height: 620px; overflow: hidden; background: #1e3525; }
.hero-image::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(16,23,19,.32), transparent 40%), linear-gradient(0deg, rgba(12,20,14,.82), transparent 48%); pointer-events: none; }
.hero-image img { width: 100%; height: 100%; object-fit: cover; }
.hero-image figcaption { position: absolute; z-index: 2; left: 38px; bottom: 120px; display: grid; color: white; }
.hero-image figcaption b { font: 700 .8rem/1.3 "Manrope", sans-serif; letter-spacing: .14em; }
.hero-image figcaption span { margin-top: 5px; color: rgba(255,255,255,.68); font-size: .8rem; }
.metric-bar { grid-column: 1 / -1; align-self: end; display: grid; grid-template-columns: repeat(4, 1fr); width: min(var(--max), calc(100% - 64px)); margin: -96px auto 0; position: relative; z-index: 3; background: white; color: var(--ink); box-shadow: 0 20px 60px rgba(0,0,0,.22); }
.metric-bar div { min-height: 154px; padding: 29px 34px; border-right: 1px solid var(--line); }
.metric-bar div:last-child { border: 0; }
.metric-bar dt { color: var(--green); font: 700 2.35rem/1.15 "Manrope", sans-serif; letter-spacing: -.04em; }
.metric-bar sup { font-size: 1.2rem; }
.metric-bar small { margin-left: 8px; font: 700 .8rem/1 "Noto Sans KR", sans-serif; letter-spacing: 0; }
.metric-bar dd { margin-top: 9px; color: var(--muted); font-size: .82rem; }

.section { padding: 130px max(32px, calc((100vw - var(--max)) / 2)); }
.section-label { display: flex; align-items: center; gap: 12px; margin-bottom: 64px; color: var(--muted); font: 700 .74rem/1 "Manrope", sans-serif; letter-spacing: .17em; }
.section-label span { display: grid; place-items: center; width: 32px; height: 32px; border: 1px solid var(--line); color: var(--green); font-size: .66rem; letter-spacing: 0; }
.section-label.light { color: rgba(255,255,255,.5); }
.section-label.light span { border-color: rgba(255,255,255,.2); color: #b5df59; }
.kicker { margin: 0 0 17px; color: var(--green); font-weight: 700; }
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 8vw; }
.about h2, .products h2, .capability h2, .projects h2 { font-size: clamp(2.35rem, 4vw, 4rem); font-weight: 600; }
.about-copy { max-width: 590px; }
.about-copy p { color: var(--muted); }
.about-copy .lead { margin-top: 0; color: var(--ink-soft); font-size: 1.18rem; font-weight: 600; }
.company-facts { display: grid; grid-template-columns: repeat(3, 1fr); margin-top: 76px; border-top: 1px solid var(--ink); }
.company-facts div { padding: 22px 22px 24px 0; border-bottom: 1px solid var(--line); }
.company-facts div:not(:nth-child(3n+1)) { padding-left: 24px; border-left: 1px solid var(--line); }
.company-facts dt { color: var(--muted); font-size: .78rem; }
.company-facts dd { margin-top: 5px; font-weight: 700; }
.history-strip { display: grid; grid-template-columns: repeat(6, 1fr); margin-top: 74px; border-top: 2px solid var(--ink); }
.history-strip article { position: relative; min-height: 128px; padding: 25px 18px 20px 0; border-right: 1px solid var(--line); }
.history-strip article::before { content: ""; position: absolute; top: -7px; left: 0; width: 12px; height: 12px; background: var(--lime); }
.history-strip article + article { padding-left: 20px; }
.history-strip article + article::before { left: 20px; }
.history-strip span { display: block; margin-bottom: 26px; color: var(--green); font: 700 .78rem/1 "Manrope", sans-serif; }
.history-strip b { font-size: .82rem; line-height: 1.5; }

.products { color: white; background: var(--ink); }
.section-heading { display: grid; grid-template-columns: 1.25fr .75fr; gap: 8vw; align-items: end; }
.section-heading .section-label { margin-bottom: 54px; }
.section-heading > p { margin: 0 0 9px; color: rgba(255,255,255,.58); font-size: 1.04rem; }
.stone-tabs { display: flex; gap: 8px; margin-top: 66px; padding-bottom: 8px; overflow-x: auto; scrollbar-width: thin; }
.stone-tabs button { flex: 0 0 auto; min-width: 112px; padding: 13px 18px; border: 1px solid rgba(255,255,255,.18); color: rgba(255,255,255,.68); background: transparent; font: 700 .88rem/1.2 "Noto Sans KR", sans-serif; cursor: pointer; }
.stone-tabs button:hover, .stone-tabs button:focus-visible { border-color: #b5df59; color: white; outline: none; }
.stone-tabs button[aria-selected="true"] { border-color: var(--lime); color: #16210f; background: var(--lime); }
.stone-panel { margin-top: 38px; }
.stone-panel[hidden] { display: none; }
.stone-panel-head { display: flex; align-items: baseline; justify-content: space-between; padding: 18px 0; border-top: 1px solid rgba(255,255,255,.32); }
.stone-panel-head h3 { margin: 0; font-size: clamp(1.8rem, 3vw, 2.8rem); letter-spacing: -.04em; }
.stone-panel-head span { color: rgba(255,255,255,.42); font: 700 .75rem/1 "Manrope", sans-serif; letter-spacing: .13em; }
.finish-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 20px; }
.finish-grid.feature-four { grid-template-columns: repeat(4, 1fr); }
.finish-grid figure { overflow: hidden; background: #242d27; }
.finish-grid img { width: 100%; aspect-ratio: 1.35; object-fit: cover; transition: transform .35s ease; }
.finish-grid figure:hover img { transform: scale(1.035); }
.finish-grid figcaption { display: flex; align-items: baseline; justify-content: space-between; padding: 22px 24px; }
.finish-grid b { color: #b5df59; font: 700 .86rem/1 "Manrope", sans-serif; letter-spacing: .1em; }
.finish-grid span { color: rgba(255,255,255,.65); font-size: .84rem; }
.applications { display: flex; flex-wrap: wrap; align-items: center; gap: 9px; margin: 42px 0 0; color: rgba(255,255,255,.45); font-size: .82rem; }
.applications span { padding: 7px 11px; border: 1px solid rgba(255,255,255,.14); color: rgba(255,255,255,.75); }

.capability { background: #f7f7f3; }
.capability-head { display: grid; grid-template-columns: 1.25fr .75fr; gap: 8vw; align-items: end; }
.capability-head p { margin: 0 0 8px; color: var(--muted); font-size: 1.04rem; }
.process-list { display: grid; grid-template-columns: repeat(6, 1fr); margin: 76px 0 0; padding: 0; list-style: none; border-top: 2px solid var(--ink); }
.process-list li { position: relative; min-height: 118px; padding: 26px 14px 18px 0; border-right: 1px solid var(--line); }
.process-list li::before { content: ""; position: absolute; top: -7px; left: 0; width: 12px; height: 12px; background: var(--green); }
.process-list li + li { padding-left: 18px; }
.process-list li + li::before { left: 18px; }
.process-list span { display: block; margin-bottom: 29px; color: var(--green); font: 700 .75rem/1 "Manrope", sans-serif; }
.process-list b { font-size: .9rem; }
.equipment-layout { display: grid; grid-template-columns: .9fr 1.1fr; gap: 8vw; align-items: center; margin-top: 112px; }
.equipment-layout figure { position: relative; height: 560px; overflow: hidden; background: #1c251f; }
.equipment-layout figure img { width: 100%; height: 100%; object-fit: cover; }
.equipment-layout figcaption { position: absolute; left: 20px; bottom: 20px; padding: 8px 12px; color: white; background: rgba(10,20,13,.76); font: 700 .72rem/1 "Manrope", sans-serif; letter-spacing: .12em; }
.equipment-layout h3, .capacity-panel h3, .procurement h3 { margin: 0; font-size: clamp(2rem, 3vw, 3.2rem); line-height: 1.25; letter-spacing: -.045em; }
.equipment-list { margin-top: 43px; border-top: 1px solid var(--ink); }
.equipment-list div { display: grid; grid-template-columns: 1fr 1fr; padding: 17px 0; border-bottom: 1px solid var(--line); }
.equipment-list dt { font-weight: 700; }
.equipment-list dd { color: var(--muted); text-align: right; }
.capacity-panel { display: grid; grid-template-columns: 1fr 1fr .8fr; gap: 44px; align-items: stretch; margin-top: 120px; padding: 58px; color: white; background: var(--green-dark); }
.capacity-copy > p:last-child { margin-top: 36px; color: rgba(255,255,255,.46); font-size: .75rem; }
.capacity-numbers { display: grid; grid-template-columns: 1fr 1fr; }
.capacity-numbers article { display: grid; align-content: center; padding: 20px; border-right: 1px solid rgba(255,255,255,.14); border-bottom: 1px solid rgba(255,255,255,.14); }
.capacity-numbers strong { color: #d1ed9a; font: 700 1.85rem/1.2 "Manrope", sans-serif; }
.capacity-numbers span { margin-top: 9px; color: rgba(255,255,255,.58); font-size: .78rem; }
.capacity-panel > img { width: 100%; height: 100%; min-height: 340px; object-fit: cover; }

.projects { background: var(--paper); }
.projects-heading > p { color: var(--muted); }
.project-grid { display: grid; grid-template-columns: repeat(12, 1fr); grid-template-rows: 260px 260px; grid-auto-rows: 260px; gap: 14px; margin-top: 72px; }
.project-grid figure { position: relative; grid-column: span 4; overflow: hidden; background: #d9ddd9; }
.project-grid .project-large { grid-column: span 8; grid-row: span 2; }
.project-grid .project-wide { grid-column: span 6; }
.project-grid img { width: 100%; height: 100%; object-fit: cover; transition: transform .35s ease; }
.project-grid figure:hover img { transform: scale(1.035); }
.project-grid figcaption { position: absolute; left: 16px; bottom: 16px; padding: 8px 11px; color: white; background: rgba(10,18,12,.75); font-size: .78rem; }
.procurement { display: grid; grid-template-columns: .65fr 1.35fr; gap: 7vw; margin-top: 120px; padding-top: 68px; border-top: 2px solid var(--ink); }
.procurement-title .eyebrow { color: var(--green); }
.procurement-title h3 { font-size: clamp(1.9rem, 3vw, 2.8rem); }
.procurement-title > p:last-child { color: var(--muted); }
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; background: white; }
th, td { padding: 15px 17px; border-bottom: 1px solid var(--line); text-align: left; }
th { color: var(--green); background: #edf3ed; font-size: .78rem; }
td { font-size: .84rem; }
td:last-child, th:last-child { text-align: right; white-space: nowrap; }

.certifications { background: #e8ece7; }
.certifications-heading > p { color: var(--muted); }
.certificate-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px; margin-top: 72px; }
.certificate-card { display: flex; min-width: 0; flex-direction: column; border: 1px solid #d2d8d2; background: white; transition: transform .2s ease, box-shadow .2s ease; }
.certificate-card:hover, .certificate-card:focus-visible { transform: translateY(-4px); box-shadow: 0 18px 36px rgba(16,23,19,.12); outline: 2px solid var(--green); outline-offset: 2px; }
.certificate-image { display: grid; place-items: center; aspect-ratio: 7 / 9; padding: 18px; overflow: hidden; background: #f5f6f3; }
.certificate-image img { width: 100%; height: 100%; object-fit: contain; object-position: top center; }
.certificate-info { display: grid; padding: 20px; border-top: 1px solid var(--line); }
.certificate-info small { color: var(--green); font: 700 .67rem/1.3 "Manrope", sans-serif; letter-spacing: .11em; }
.certificate-info strong { margin-top: 7px; font-size: .96rem; }
.certificate-info em { margin-top: 3px; color: var(--muted); font-size: .76rem; font-style: normal; }
.certificate-note { max-width: 840px; margin: 28px 0 0; color: var(--muted); font-size: .78rem; }

.contact { display: grid; grid-template-columns: .9fr 1.1fr; gap: 9vw; padding: 130px max(32px, calc((100vw - var(--max)) / 2)); color: white; background: #10281a; }
.contact-copy h2 { font-size: clamp(2.8rem, 5vw, 5rem); }
.contact-copy > p:last-child { max-width: 510px; margin-top: 32px; color: rgba(255,255,255,.6); }
.contact-card { padding: 46px; color: var(--ink); background: white; }
.contact-card h3 { margin: 0 0 30px; font-size: 1.55rem; }
.contact-card dl { border-top: 1px solid var(--ink); }
.contact-card dl div { display: grid; grid-template-columns: 130px 1fr; padding: 14px 0; border-bottom: 1px solid var(--line); }
.contact-card dt { color: var(--muted); font-size: .82rem; }
.contact-card dd { font-weight: 600; }
.contact-card dd a { color: var(--green); }
.contact-actions { display: flex; gap: 10px; margin-top: 30px; }
.button-dark { color: white; background: var(--ink); }

footer { min-height: 170px; padding: 40px max(32px, calc((100vw - var(--max)) / 2)); display: grid; grid-template-columns: 1fr auto auto; align-items: center; gap: 34px; color: rgba(255,255,255,.5); background: #080d09; font-size: .75rem; }
.footer-logo { width: 190px; padding: 5px 10px; background: white; }
.footer-logo img { width: 100%; }

@media (max-width: 1020px) {
  .site-header { padding-inline: 24px; }
  .site-header nav { display: none; }
  .hero { grid-template-columns: 1fr; }
  .hero-copy { min-height: 640px; padding: 90px 32px 150px; }
  .hero-image { min-height: 520px; }
  .hero-image figcaption { bottom: 120px; }
  .metric-bar { grid-template-columns: 1fr 1fr; margin-top: -92px; }
  .metric-bar div { min-height: 120px; }
  .about-grid, .section-heading, .capability-head, .equipment-layout, .procurement, .contact { grid-template-columns: 1fr; }
  .section-heading > p, .capability-head > p { max-width: 650px; margin-top: 28px; }
  .history-strip, .process-list { grid-template-columns: repeat(3, 1fr); }
  .finish-grid.feature-four { grid-template-columns: repeat(2, 1fr); }
  .equipment-layout figure { height: 480px; }
  .capacity-panel { grid-template-columns: 1fr 1fr; }
  .capacity-panel > img { grid-column: 1 / -1; height: 350px; }
  .procurement { gap: 44px; }
  .certificate-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 820px) {
  .project-grid { grid-template-columns: 1fr; grid-template-rows: none; grid-auto-rows: auto; gap: 12px; margin-top: 48px; }
  .project-grid figure,
  .project-grid .project-large,
  .project-grid .project-wide { grid-column: 1 / -1; grid-row: auto; }
  .project-grid img { height: auto; object-fit: contain; }
}

@media (max-width: 680px) {
  body { word-break: normal; }
  .site-header { height: 72px; gap: 14px; }
  .brand { width: 170px; }
  .brand img { height: 46px; }
  .header-contact { margin-left: auto; padding: 9px 11px; font-size: .68rem; }
  section { scroll-margin-top: 72px; }
  .hero-copy { min-height: 620px; padding: 74px 24px 146px; }
  .hero h1 { font-size: clamp(2.55rem, 12.5vw, 4rem); }
  .hero-actions { display: grid; }
  .hero-image { min-height: 440px; }
  .hero-image figcaption { left: 24px; }
  .metric-bar { width: calc(100% - 32px); }
  .metric-bar div { padding: 22px 20px; }
  .metric-bar dt { font-size: 1.85rem; }
  .section { padding: 96px 24px; }
  .section-label { margin-bottom: 44px; }
  .company-facts { grid-template-columns: 1fr 1fr; }
  .company-facts div, .company-facts div:not(:nth-child(3n+1)) { padding: 18px 8px; border-left: 0; }
  .company-facts div:nth-child(even) { padding-left: 18px; border-left: 1px solid var(--line); }
  .history-strip, .process-list { grid-template-columns: 1fr 1fr; }
  .finish-grid { grid-template-columns: 1fr; }
  .finish-grid.feature-four { grid-template-columns: 1fr; }
  .stone-panel-head { display: grid; gap: 7px; }
  .equipment-layout { margin-top: 80px; }
  .equipment-layout figure { height: 420px; }
  .equipment-list div { grid-template-columns: .8fr 1.2fr; }
  .capacity-panel { grid-template-columns: 1fr; margin-inline: -24px; padding: 44px 24px; }
  .capacity-panel > img { grid-column: auto; height: 320px; min-height: 0; }
  .procurement { margin-top: 90px; }
  .contact { padding: 96px 24px; }
  .certificate-grid { grid-template-columns: 1fr 1fr; gap: 10px; }
  .certificate-image { padding: 9px; }
  .certificate-info { padding: 15px 13px; }
  .contact-card { padding: 30px 22px; }
  .contact-card dl div { grid-template-columns: 100px 1fr; }
  .contact-actions { display: grid; }
  footer { grid-template-columns: 1fr; gap: 18px; padding: 40px 24px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .001ms !important; }
}