:root {
  --ink: #151719;
  --muted: #666a6e;
  --line: #d8d9d8;
  --paper: #f5f5f2;
  --white: #ffffff;
  --stone: #e8e8e3;
  --red: #9d312e;
  --red-dark: #792522;
  --green: #274c43;
  --blue: #315a70;
  --max: 1240px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: "DM Sans", "PingFang SC", "Microsoft YaHei", "Apple SD Gothic Neo", "Noto Sans KR", Arial, sans-serif;
  letter-spacing: 0;
}
body.menu-open { overflow: hidden; }
img { display: block; width: 100%; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; letter-spacing: 0; }
button { cursor: pointer; }

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 50;
  height: 76px;
  padding: 0 clamp(20px, 4vw, 64px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(18, 20, 21, 0.84);
  color: var(--white);
  border-bottom: 1px solid rgba(255,255,255,.18);
  backdrop-filter: blur(14px);
}
.brand { display: flex; align-items: center; gap: 12px; min-width: max-content; }
.brand-mark {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  color: var(--white);
  background: var(--red);
  font: 700 12px/1 "Manrope", sans-serif;
}
.brand-name { font: 600 16px/1 "Manrope", sans-serif; }
.brand-name b { font-weight: 700; }
.desktop-nav { display: flex; align-items: center; gap: 28px; }
.desktop-nav a { font-size: 14px; color: rgba(255,255,255,.78); transition: color .2s ease; }
.desktop-nav a:hover { color: var(--white); }
.header-actions { display: flex; align-items: center; gap: 10px; }
.language-switch { display: flex; padding: 3px; border: 1px solid rgba(255,255,255,.3); }
.lang-button { width: 36px; height: 30px; border: 0; color: rgba(255,255,255,.68); background: transparent; font-size: 12px; }
.lang-button.active { color: var(--ink); background: var(--white); }
.icon-button { width: 38px; height: 38px; display: grid; place-items: center; border: 1px solid rgba(255,255,255,.3); color: var(--white); background: transparent; }
.icon-button svg { width: 18px; }
.menu-button { display: none; }
.mobile-nav { display: none; }

.hero { position: relative; min-height: 90svh; display: flex; align-items: flex-end; overflow: hidden; color: var(--white); }
.hero > img { position: absolute; inset: 0; height: 100%; object-fit: cover; object-position: 56% center; }
.hero-overlay { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(10,12,13,.78) 0%, rgba(10,12,13,.45) 46%, rgba(10,12,13,.07) 76%), linear-gradient(0deg, rgba(10,12,13,.7) 0%, transparent 38%); }
.hero-content { position: relative; z-index: 2; width: min(860px, 88vw); margin: 0 0 164px max(6vw, 24px); }
.eyebrow { margin: 0 0 18px; font: 700 12px/1.2 "Manrope", sans-serif; letter-spacing: .12em; color: rgba(255,255,255,.75); }
.eyebrow.dark { color: var(--red); }
.hero h1 { margin: 0; font: 700 96px/.92 "Manrope", sans-serif; letter-spacing: 0; }
.hero-lead { max-width: 680px; margin: 26px 0 0; font-size: 24px; line-height: 1.45; color: rgba(255,255,255,.9); }
.hero-actions { display: flex; gap: 12px; margin-top: 34px; flex-wrap: wrap; }
.button { min-height: 48px; padding: 0 20px; display: inline-flex; align-items: center; justify-content: center; gap: 10px; border: 1px solid transparent; border-radius: 3px; font-weight: 700; font-size: 14px; transition: transform .2s ease, background .2s ease, color .2s ease; }
.button:hover { transform: translateY(-2px); }
.button svg { width: 18px; }
.button-primary { color: var(--white); background: var(--red); }
.button-primary:hover { background: var(--red-dark); }
.button-ghost { border-color: rgba(255,255,255,.65); color: var(--white); background: rgba(0,0,0,.12); }
.button-dark { color: var(--white); background: var(--ink); }
.hero-proof { position: absolute; z-index: 2; inset: auto 0 0; min-height: 104px; display: grid; grid-template-columns: repeat(3, 1fr); padding: 0 6vw; background: rgba(15,17,18,.86); border-top: 1px solid rgba(255,255,255,.18); backdrop-filter: blur(12px); }
.hero-proof div { padding: 25px 28px; border-right: 1px solid rgba(255,255,255,.16); }
.hero-proof div:first-child { border-left: 1px solid rgba(255,255,255,.16); }
.hero-proof strong, .hero-proof span { display: block; }
.hero-proof strong { font: 600 17px/1.25 "Manrope", sans-serif; }
.hero-proof span { margin-top: 7px; color: rgba(255,255,255,.6); font-size: 13px; }

.band { padding: 112px max(6vw, 24px); }
.section-heading { max-width: var(--max); margin: 0 auto 56px; display: grid; grid-template-columns: .75fr 1.25fr; column-gap: 70px; }
.section-heading .eyebrow { grid-column: 1; }
.section-heading h2 { grid-column: 1; margin: 0; max-width: 520px; font: 600 52px/1.08 "Manrope", sans-serif; }
.section-heading > p:last-child { grid-column: 2; grid-row: 2; margin: 8px 0 0; max-width: 560px; font-size: 18px; line-height: 1.7; color: var(--muted); }
.service-grid { max-width: var(--max); margin: 0 auto; display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.service-item { position: relative; min-height: 310px; padding: 32px 26px; border-left: 1px solid var(--line); }
.service-item:last-child { border-right: 1px solid var(--line); }
.service-icon { width: 44px; height: 44px; display: grid; place-items: center; background: var(--paper); color: var(--green); }
.service-icon svg { width: 22px; }
.service-item > span { position: absolute; top: 36px; right: 24px; font: 600 12px "Manrope", sans-serif; color: #999; }
.service-item h3 { margin: 58px 0 14px; font: 600 22px/1.25 "Manrope", sans-serif; }
.service-item p { margin: 0; color: var(--muted); line-height: 1.65; }

.project-feature { display: grid; grid-template-columns: 1.45fr 1fr; min-height: 720px; background: var(--paper); }
.project-image { position: relative; min-height: 660px; }
.project-image > img { position: absolute; inset: 0; height: 100%; object-fit: cover; }
.image-label { position: absolute; left: 24px; bottom: 24px; padding: 14px 16px; color: var(--white); background: rgba(21,23,25,.9); border-left: 3px solid var(--red); }
.image-label span, .image-label strong { display: block; }
.image-label span { font-size: 11px; text-transform: uppercase; color: rgba(255,255,255,.6); }
.image-label strong { margin-top: 5px; font-size: 13px; }
.project-copy { align-self: center; padding: 70px clamp(36px, 6vw, 90px); }
.project-copy h2, .products h2, .contact h2 { margin: 0; font: 600 52px/1.1 "Manrope", sans-serif; }
.project-copy > p:not(.eyebrow) { margin: 24px 0 0; color: var(--muted); font-size: 17px; line-height: 1.7; }
.check-list { list-style: none; padding: 0; margin: 30px 0; }
.check-list li { display: flex; align-items: center; gap: 12px; min-height: 46px; border-bottom: 1px solid var(--line); }
.check-list svg { width: 17px; color: var(--green); }
.text-link { display: inline-flex; align-items: center; gap: 10px; color: var(--red); font-weight: 700; }
.text-link svg { width: 18px; transition: transform .2s ease; }
.text-link:hover svg { transform: translateX(4px); }

.products { background: var(--white); }
.section-heading.compact { grid-template-columns: .9fr 1.1fr; }
.products-layout { max-width: var(--max); margin: 0 auto; display: grid; grid-template-columns: 1.25fr .75fr; border: 1px solid var(--line); }
.product-image-wrap { min-height: 610px; overflow: hidden; }
.product-image-wrap img { height: 100%; object-fit: cover; }
.product-list { display: grid; grid-template-rows: repeat(4, 1fr); }
.product-list article { display: flex; align-items: center; gap: 20px; padding: 25px 28px; border-left: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.product-list article:last-child { border-bottom: 0; }
.product-list svg { flex: 0 0 auto; width: 24px; color: var(--blue); }
.product-list h3 { margin: 0; font: 600 19px/1.2 "Manrope", sans-serif; }
.product-list p { margin: 6px 0 0; color: var(--muted); font-size: 14px; line-height: 1.45; }

.process { padding: 112px max(6vw, 24px); color: var(--white); background: var(--ink); }
.process-heading { max-width: var(--max); margin: 0 auto 50px; display: flex; align-items: end; justify-content: space-between; gap: 30px; }
.process-heading h2 { max-width: 650px; margin: 0; font: 600 52px/1.1 "Manrope", sans-serif; }
.process-list { list-style: none; max-width: var(--max); margin: 0 auto; padding: 0; display: grid; grid-template-columns: repeat(5, 1fr); border-top: 1px solid #4a4d4f; }
.process-list li { min-height: 230px; padding: 28px 22px; border-right: 1px solid #4a4d4f; }
.process-list li:first-child { border-left: 1px solid #4a4d4f; }
.process-list > li > span { color: #8a8d8f; font: 600 12px "Manrope", sans-serif; }
.process-list h3 { margin: 70px 0 12px; font: 600 18px "Manrope", sans-serif; }
.process-list p { margin: 0; color: #aeb1b3; line-height: 1.5; font-size: 14px; }

.contact { max-width: var(--max); margin: 0 auto; padding: 112px 24px; display: grid; grid-template-columns: .9fr 1.1fr; gap: 80px; }
.contact-copy > p:not(.eyebrow) { max-width: 520px; margin: 24px 0 0; color: var(--muted); font-size: 17px; line-height: 1.7; }
.contact-details { margin-top: 38px; display: grid; gap: 12px; }
.contact-details a { display: flex; align-items: center; gap: 14px; padding: 15px 0; border-bottom: 1px solid var(--line); }
.contact-details svg { width: 22px; color: var(--red); }
.contact-details span { font-weight: 600; }
.contact-details small { display: block; margin-bottom: 3px; color: var(--muted); font-weight: 400; }
.inquiry-form { align-self: start; display: grid; grid-template-columns: 1fr 1fr; gap: 20px; padding: 30px; background: var(--paper); border-top: 4px solid var(--red); }
.inquiry-form label { display: grid; gap: 8px; }
.inquiry-form label > span { font-size: 13px; font-weight: 700; }
.inquiry-form input, .inquiry-form select, .inquiry-form textarea { width: 100%; border: 1px solid #c7c9c8; border-radius: 2px; background: var(--white); color: var(--ink); padding: 13px 14px; outline: none; }
.inquiry-form input, .inquiry-form select { height: 48px; }
.inquiry-form textarea { resize: vertical; min-height: 132px; }
.inquiry-form input:focus, .inquiry-form select:focus, .inquiry-form textarea:focus { border-color: var(--blue); box-shadow: 0 0 0 2px rgba(49,90,112,.12); }
.full-field { grid-column: 1 / -1; }
.form-note { margin: -5px 0 0; color: var(--muted); font-size: 12px; line-height: 1.5; }

footer { padding: 44px max(6vw, 24px); display: grid; grid-template-columns: 1fr auto; gap: 28px; align-items: center; color: var(--white); background: #0d0f10; border-top: 1px solid #313436; }
.footer-brand { display: flex; align-items: center; gap: 14px; }
.footer-brand strong { font: 600 15px "Manrope", sans-serif; }
.footer-brand p { margin: 4px 0 0; color: #8e9294; font-size: 13px; }
.footer-contact { display: flex; gap: 24px; color: #c7c9ca; font-size: 13px; }
.copyright { grid-column: 1 / -1; margin: 4px 0 0; padding-top: 22px; border-top: 1px solid #2b2e30; color: #74787a; font-size: 12px; }
.floating-whatsapp { position: fixed; z-index: 40; right: 20px; bottom: 20px; width: 52px; height: 52px; display: grid; place-items: center; color: var(--white); background: var(--green); box-shadow: 0 12px 28px rgba(0,0,0,.24); border-radius: 50%; }
.floating-whatsapp svg { width: 23px; }

@media (max-width: 980px) {
  .desktop-nav { display: none; }
  .menu-button { display: grid; }
  .mobile-nav { position: fixed; inset: 76px 0 auto; padding: 20px max(6vw, 24px) 28px; display: grid; gap: 0; background: #151719; transform: translateY(-130%); visibility: hidden; transition: transform .25s ease, visibility .25s; }
  .menu-open .mobile-nav { transform: translateY(0); visibility: visible; }
  .mobile-nav a { padding: 16px 0; border-bottom: 1px solid #3c3f41; }
  .hero { min-height: 88svh; }
  .hero-content { margin-bottom: 180px; }
  .hero h1 { font-size: 72px; }
  .hero-lead { font-size: 20px; }
  .section-heading h2, .project-copy h2, .products h2, .contact h2, .process-heading h2 { font-size: 42px; }
  .section-heading, .section-heading.compact { grid-template-columns: 1fr; }
  .section-heading > p:last-child { grid-column: 1; grid-row: auto; margin-top: 24px; }
  .service-grid { grid-template-columns: repeat(2, 1fr); }
  .service-item:nth-child(3) { border-top: 1px solid var(--line); }
  .service-item:nth-child(4) { border-top: 1px solid var(--line); }
  .project-feature { grid-template-columns: 1fr; }
  .project-image { min-height: 600px; }
  .products-layout { grid-template-columns: 1fr; }
  .product-image-wrap { min-height: 540px; }
  .product-list { grid-template-columns: 1fr 1fr; grid-template-rows: auto; }
  .product-list article { min-height: 150px; }
  .process-list { grid-template-columns: 1fr 1fr; }
  .process-list li { border-bottom: 1px solid #4a4d4f; }
  .process-list li:last-child { grid-column: 1 / -1; min-height: 180px; }
  .contact { grid-template-columns: 1fr; }
}

@media (max-width: 680px) {
  .site-header { height: 66px; padding: 0 16px; }
  .brand-name { font-size: 14px; }
  .brand-mark { width: 34px; height: 34px; }
  .header-actions { gap: 6px; }
  .language-switch { padding: 2px; }
  .lang-button { width: 28px; height: 28px; }
  .header-actions > .icon-button:not(.menu-button) { display: none; }
  .mobile-nav { inset: 66px 0 auto; }
  .hero { min-height: 840px; align-items: flex-start; }
  .hero > img { object-position: 63% center; }
  .hero-overlay { background: linear-gradient(180deg, rgba(11,13,14,.76) 0%, rgba(11,13,14,.55) 48%, rgba(11,13,14,.82) 100%); }
  .hero-content { width: auto; margin: 150px 20px 0; }
  .hero h1 { font-size: 54px; }
  .hero-lead { font-size: 18px; }
  .hero-actions { display: grid; grid-template-columns: 1fr; }
  .hero-proof { grid-template-columns: 1fr; padding: 0 20px; }
  .hero-proof div { padding: 14px 2px; border-right: 0; border-bottom: 1px solid rgba(255,255,255,.16); }
  .hero-proof div:first-child { border-left: 0; }
  .hero-proof div:last-child { border-bottom: 0; }
  .hero-proof strong { font-size: 14px; }
  .hero-proof span { margin-top: 3px; font-size: 12px; }
  .band, .process { padding: 80px 20px; }
  .section-heading { margin-bottom: 38px; }
  .section-heading h2, .project-copy h2, .products h2, .contact h2, .process-heading h2 { font-size: 34px; }
  .section-heading > p:last-child { font-size: 16px; }
  .service-grid { grid-template-columns: 1fr; }
  .service-item { min-height: 250px; border-right: 1px solid var(--line); border-top: 1px solid var(--line); }
  .service-item:first-child { border-top: 0; }
  .project-image { min-height: 470px; }
  .project-copy { padding: 70px 20px; }
  .products-layout { border-left: 0; border-right: 0; }
  .product-image-wrap { min-height: 390px; }
  .product-list { grid-template-columns: 1fr; }
  .product-list article { border-left: 0; }
  .process-heading { display: block; }
  .process-list { grid-template-columns: 1fr; }
  .process-list li, .process-list li:last-child { grid-column: auto; min-height: 170px; border-left: 1px solid #4a4d4f; }
  .process-list h3 { margin-top: 45px; }
  .contact { padding: 80px 20px; gap: 50px; }
  .inquiry-form { grid-template-columns: 1fr; padding: 22px 18px; }
  .full-field { grid-column: 1; }
  footer { grid-template-columns: 1fr; }
  .footer-contact { display: grid; gap: 10px; }
}

@media (max-width: 350px) {
  .brand-name { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; }
}