:root {
  color-scheme: light;
  --ink: #0b1730;
  --muted: #586783;
  --line: #dce5f3;
  --blue: #2456eb;
  --violet: #8038e8;
  --surface: #f7faff;
  font-family: Inter, Pretendard, "Noto Sans KR", "Segoe UI", Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: #fff; color: var(--ink); }
a { color: inherit; text-decoration: none; }
button { font: inherit; }
.visually-hidden { 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: relative;
  z-index: 10;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  min-height: 104px;
  padding: 0 clamp(24px, 4vw, 64px);
  border-bottom: 1px solid rgba(220, 229, 243, .75);
  background: rgba(255,255,255,.9);
  backdrop-filter: blur(18px);
}

.brand, .header-actions, nav, .language { display: flex; align-items: center; }
.brand { gap: 15px; font-weight: 760; }
.brand-mark {
  display: block; width: 54px; height: 54px; border-radius: 14px; object-fit: cover;
  box-shadow: 0 12px 30px rgba(72,64,224,.22);
}
.brand-name { font-size: 20px; }
nav { gap: clamp(28px, 4vw, 66px); font-size: 13px; font-weight: 750; letter-spacing: .08em; }
nav a, .language button { transition: color .2s ease; }
nav a:hover, .language button:hover { color: var(--blue); }
.header-actions { justify-content: flex-end; gap: 28px; }
.language { gap: 8px; color: #8490a8; font-size: 13px; }
.language button { border: 0; padding: 5px; background: none; color: inherit; cursor: pointer; }
.language button[aria-pressed="true"] { color: var(--blue); font-weight: 800; }

.button {
  display: inline-flex; align-items: center; justify-content: center; min-height: 54px;
  padding: 0 29px; border-radius: 14px; font-size: 14px; font-weight: 800;
  letter-spacing: .015em; transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
}
.button:hover { transform: translateY(-2px); }
.button-outline, .button-secondary { border: 1px solid #6d55ef; color: #432dd4; background: rgba(255,255,255,.75); }
.button-primary { color: #fff; background: linear-gradient(110deg, var(--blue), var(--violet)); box-shadow: 0 15px 32px rgba(78,58,220,.25); }

.hero {
  display: grid; grid-template-columns: minmax(560px, .95fr) minmax(600px, 1.15fr);
  align-items: center; min-height: 675px; width: 100%; margin: 0;
  padding: 58px 0 40px clamp(32px, 5.2vw, 84px); overflow: hidden;
}
.hero-copy { position: relative; z-index: 2; max-width: 640px; }
.eyebrow { margin: 0 0 20px; color: var(--blue); font-size: 12px; font-weight: 850; letter-spacing: .2em; }
.hero h1 { margin: 0; font-size: clamp(60px, 5.2vw, 82px); line-height: .95; letter-spacing: -.055em; white-space: nowrap; }
.hero h1 span { background: linear-gradient(100deg, var(--blue), var(--violet)); -webkit-background-clip: text; color: transparent; }
.hero h2 { margin: 28px 0 22px; font-size: clamp(25px, 2.25vw, 38px); line-height: 1.25; letter-spacing: -.04em; }
.hero-description { max-width: 610px; margin: 0; color: var(--muted); font-size: 17px; line-height: 1.8; word-break: keep-all; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 15px; margin-top: 34px; }
.hero-visual { align-self: stretch; display: flex; align-items: flex-start; justify-content: flex-end; min-width: 0; margin-top: -58px; margin-bottom: -40px; overflow: hidden; }
.hero-visual img { display: block; width: 100%; height: auto; max-width: 100%; object-fit: contain; object-position: right center; filter: saturate(.96) contrast(1.01); }

.outcomes { padding: 38px clamp(24px, 5.2vw, 84px); background: var(--surface); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.metric-list { display: grid; grid-template-columns: repeat(4, 1fr); max-width: 1432px; margin: 0 auto; }
.metric-list article { display: flex; min-height: 118px; padding: 18px 32px; flex-direction: column; justify-content: center; border-right: 1px solid #d5deed; }
.metric-list article:first-child { padding-left: 0; }
.metric-list article:last-child { border-right: 0; }
.metric-list strong { color: var(--blue); font-size: clamp(34px, 3vw, 52px); line-height: 1; letter-spacing: -.05em; }
.metric-list span { margin-top: 12px; color: var(--muted); font-size: 13px; font-weight: 700; }
.outcome-list { display: grid; grid-template-columns: repeat(3, 1fr); max-width: 1432px; margin: 0 auto; border-top: 1px solid #bdcae0; }
.outcome-list article { min-height: 205px; padding: 26px 36px 12px 0; border-right: 1px solid #d5deed; }
.outcome-list article + article { padding-left: 36px; }
.outcome-list article:last-child { border-right: 0; }
.outcome-number { display: block; margin-bottom: 28px; color: #95a2b8; font: 700 12px/1 ui-monospace, monospace; }
.outcome-list h3 { margin: 0 0 11px; color: var(--blue); font-size: 14px; letter-spacing: .06em; }
.outcome-list strong { font-size: 22px; }
.outcome-list p { margin: 13px 0 0; color: var(--muted); font-size: 14px; line-height: 1.75; word-break: keep-all; }

.case-section, .process-section { padding: 108px clamp(24px, 5.2vw, 84px); }
.section-heading { display: grid; grid-template-columns: minmax(0, 1fr) minmax(320px, 520px); gap: 80px; align-items: end; max-width: 1432px; margin: 0 auto 50px; }
.section-heading h2, .about-cta h2 { margin: 0; font-size: clamp(38px, 4vw, 62px); line-height: 1.05; letter-spacing: -.055em; }
.section-heading > p { margin: 0; color: var(--muted); font-size: 16px; line-height: 1.8; word-break: keep-all; }
.section-heading.compact { grid-template-columns: 1fr; margin-bottom: 44px; }
.case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; max-width: 1432px; margin: 0 auto; }
.case-card { position: relative; display: flex; min-height: 490px; padding: 36px; flex-direction: column; border: 1px solid var(--line); border-radius: 24px; background: #fff; box-shadow: 0 20px 50px rgba(58, 77, 119, .07); }
.case-card-featured { border-color: rgba(85, 72, 229, .28); background: linear-gradient(145deg, #f8faff, #f6f2ff); }
.case-index { color: var(--blue); font-size: 11px; font-weight: 850; letter-spacing: .14em; }
.case-card h3 { margin: 46px 0 18px; font-size: clamp(25px, 2.1vw, 34px); line-height: 1.2; letter-spacing: -.04em; }
.case-card > p { margin: 0; color: var(--muted); font-size: 15px; line-height: 1.75; word-break: keep-all; }
.case-card ul { margin: 28px 0 30px; padding: 24px 0 0 20px; border-top: 1px solid var(--line); color: #32425f; }
.case-card li { margin: 0 0 11px; font-size: 13px; line-height: 1.5; }
.case-status { align-self: flex-start; margin-top: auto; padding: 8px 12px; border-radius: 999px; background: #edf2ff; color: var(--blue); font-size: 11px; font-weight: 850; }
.process-section { background: #0d1730; color: #fff; }
.process-section .eyebrow { color: #8fb0ff; }
.process-list { display: grid; grid-template-columns: repeat(4, 1fr); max-width: 1432px; margin: 0 auto; padding: 0; list-style: none; border-top: 1px solid rgba(255,255,255,.22); }
.process-list li { min-height: 230px; padding: 30px 30px 20px 0; border-right: 1px solid rgba(255,255,255,.14); }
.process-list li + li { padding-left: 30px; }
.process-list li:last-child { border-right: 0; }
.process-list span { color: #8da3cc; font: 700 12px/1 ui-monospace, monospace; }
.process-list strong { display: block; margin: 58px 0 12px; font-size: 22px; }
.process-list p { margin: 0; color: #b9c5dc; font-size: 14px; line-height: 1.7; word-break: keep-all; }
.about-cta { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 60px; align-items: center; margin: 0; padding: 100px clamp(24px, 8vw, 130px); background: linear-gradient(115deg, #eef5ff, #f5efff); }
.about-cta > div { max-width: 900px; }
.about-cta p:not(.eyebrow) { max-width: 720px; margin: 24px 0 0; color: var(--muted); font-size: 16px; line-height: 1.8; }
footer { display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; padding: 32px clamp(24px, 5.2vw, 84px); color: #8490a8; font-size: 11px; letter-spacing: .13em; }
footer > div:first-child { display: flex; gap: 16px; align-items: center; }
footer > div:first-child strong { color: var(--blue); }
footer > span:last-child { justify-self: end; }
.footer-links { display: flex; gap: 28px; }
.footer-links a:hover { color: var(--blue); }
.about-hero { display: grid; grid-template-columns: minmax(520px, .9fr) minmax(600px, 1.1fr); min-height: 690px; overflow: hidden; }
.about-hero-copy { align-self: center; padding: 76px clamp(32px, 5.2vw, 84px); }
.about-hero h1 { max-width: 700px; margin: 0; font-size: clamp(56px, 5.5vw, 88px); line-height: .98; letter-spacing: -.065em; word-break: keep-all; }
.about-hero-copy > p:not(.eyebrow) { max-width: 650px; margin: 30px 0 34px; color: var(--muted); font-size: 17px; line-height: 1.85; word-break: keep-all; }
.about-hero-image { min-width: 0; overflow: hidden; }
.about-hero-image img { display: block; width: 100%; height: 100%; object-fit: cover; object-position: center; }
.about-story { padding: 110px clamp(24px, 5.2vw, 84px); }
.principle-grid { display: grid; grid-template-columns: repeat(3, 1fr); max-width: 1432px; margin: 0 auto; border-top: 1px solid #bdcae0; }
.principle-grid article { min-height: 250px; padding: 30px 34px 20px 0; border-right: 1px solid var(--line); }
.principle-grid article + article { padding-left: 34px; }
.principle-grid article:last-child { border-right: 0; }
.principle-grid span { color: #95a2b8; font: 700 12px/1 ui-monospace, monospace; }
.principle-grid h3 { margin: 66px 0 14px; color: var(--blue); font-size: 19px; letter-spacing: .02em; }
.principle-grid p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.75; word-break: keep-all; }
.infrastructure-section { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(420px, .9fr); gap: 100px; padding: 110px clamp(24px, 8vw, 130px); background: #0d1730; color: #fff; }
.infrastructure-section h2 { max-width: 760px; margin: 0; font-size: clamp(40px, 4vw, 64px); line-height: 1.08; letter-spacing: -.055em; word-break: keep-all; }
.infrastructure-section > div > p:not(.eyebrow) { max-width: 720px; margin: 30px 0 0; color: #b9c5dc; font-size: 16px; line-height: 1.85; }
.infrastructure-section .eyebrow { color: #8fb0ff; }
.infrastructure-section dl { margin: 0; border-top: 1px solid rgba(255,255,255,.24); }
.infrastructure-section dl div { padding: 28px 0; border-bottom: 1px solid rgba(255,255,255,.15); }
.infrastructure-section dt { margin-bottom: 10px; color: #8fb0ff; font-size: 12px; font-weight: 850; letter-spacing: .12em; }
.infrastructure-section dd { margin: 0; color: #e3e9f5; font-size: 15px; line-height: 1.6; }

@media (max-width: 1080px) {
  .site-header { grid-template-columns: 1fr auto; }
  nav { display: none; }
  .hero { grid-template-columns: 1fr; padding-right: 32px; }
  .hero-copy { max-width: 750px; }
  .hero h1 { white-space: normal; }
  .hero-visual { margin: -45px 0 -10px 17%; }
  .section-heading { grid-template-columns: 1fr; gap: 4px; }
  .case-grid { grid-template-columns: 1fr; }
  .case-card { min-height: 0; }
  .process-list { grid-template-columns: repeat(2, 1fr); }
  .about-cta { grid-template-columns: 1fr; }
  .about-hero { grid-template-columns: 1fr; }
  .about-hero-image { min-height: 480px; }
  .infrastructure-section { grid-template-columns: 1fr; gap: 60px; }
}

@media (max-width: 720px) {
  .site-header { min-height: 78px; padding: 0 18px; }
  .brand-mark { width: 42px; height: 42px; border-radius: 11px; }
  .brand-name, .language { display: none; }
  .header-actions { gap: 8px; }
  .site-header .button { min-height: 42px; padding: 0 18px; }
  .hero { min-height: auto; padding: 62px 20px 30px; }
  .hero h1 { font-size: clamp(54px, 17vw, 76px); }
  .hero h2 { margin-top: 23px; }
  .hero-description { font-size: 15px; }
  .hero-actions .button { width: 100%; }
  .hero-visual { margin: 8px 0 -5px 2%; }
  .hero-visual img { width: 100%; height: auto; }
  .outcomes { padding: 60px 20px; }
  .metric-list { grid-template-columns: repeat(2, 1fr); }
  .metric-list article { min-height: 108px; padding: 16px 18px; border-bottom: 1px solid #d5deed; }
  .metric-list article:nth-child(2) { border-right: 0; }
  .metric-list article:nth-child(3) { padding-left: 0; border-bottom: 0; }
  .metric-list article:nth-child(4) { border-right: 0; border-bottom: 0; }
  .outcome-list { grid-template-columns: 1fr; }
  .outcome-list article, .outcome-list article + article { min-height: 0; padding: 28px 0; border-right: 0; border-bottom: 1px solid #d5deed; }
  .case-section, .process-section { padding: 76px 20px; }
  .section-heading { margin-bottom: 34px; }
  .case-card { padding: 28px; border-radius: 20px; }
  .case-card h3 { margin-top: 32px; }
  .process-list { grid-template-columns: 1fr; }
  .process-list li, .process-list li + li { min-height: 0; padding: 28px 0; border-right: 0; border-bottom: 1px solid rgba(255,255,255,.14); }
  .process-list strong { margin-top: 24px; }
  .about-cta { gap: 34px; padding: 76px 20px; }
  .about-cta .button { width: 100%; }
  .about-hero { min-height: 0; }
  .about-hero-copy { padding: 72px 20px 50px; }
  .about-hero h1 { font-size: clamp(48px, 14vw, 68px); }
  .about-hero-image { min-height: 330px; }
  .about-story { padding: 76px 20px; }
  .principle-grid { grid-template-columns: 1fr; }
  .principle-grid article, .principle-grid article + article { min-height: 0; padding: 28px 0; border-right: 0; border-bottom: 1px solid var(--line); }
  .principle-grid h3 { margin-top: 26px; }
  .infrastructure-section { gap: 45px; padding: 76px 20px; }
  footer { grid-template-columns: 1fr; gap: 22px; padding: 30px 20px; }
  footer > span:last-child { justify-self: start; }
}

@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } .button { transition: none; } }