:root {
  --navy: #003088;
  --navy-deep: #021536;
  --teal: #0078E8;
  --teal-dark: #005FBA;
  --green: #60B008;
  --red: #0078E8;
  --ink: #122033;
  --muted: #3F4C58;
  --line: #D5DCE3;
  --wash: #F3F7FC;
  --paper: #FFFFFF;
  --glass: rgba(255, 255, 255, .92);
  --glass-line: rgba(0, 48, 136, .1);
  --radius: 12px;
  --font: "Noto Sans KR", -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
  --font-en: Montserrat, "Noto Sans KR", sans-serif;
  --nav-h: 84px;
  --max: 1120px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--nav-h) + 10px); }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}
body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.72;
  font-size: 16.5px;
  -webkit-font-smoothing: antialiased;
  padding-bottom: 64px;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button, input, textarea, select { font: inherit; }
:focus-visible { outline: 3px solid var(--teal); outline-offset: 2px; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); }
.skip {
  position: absolute; left: 1rem; top: -120px; z-index: 400;
  background: var(--teal); color: #fff; font-weight: 700; padding: .7rem 1rem; border-radius: 8px;
}
.skip:focus { top: 1rem; }
.wrap { width: min(100% - 2.4rem, var(--max)); margin-inline: auto; }
.en {
  font-family: var(--font-en);
  letter-spacing: .12em;
  text-transform: uppercase;
  font-size: .72rem;
  font-weight: 600;
  color: var(--teal);
}
.kicker {
  margin: 0;
  font-size: .8rem;
  font-weight: 800;
  letter-spacing: .02em;
  color: var(--teal);
}
.hero .kicker,
.page-hero .kicker,
.cta-band .kicker,
.panel .kicker { color: #9ec7ef; }

.site-header {
  position: sticky; top: 0; z-index: 40;
  height: var(--nav-h);
  background: var(--glass);
  border-bottom: 1px solid var(--glass-line);
  backdrop-filter: blur(18px) saturate(1.4);
  -webkit-backdrop-filter: blur(18px) saturate(1.4);
}
@supports not ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))) {
  .site-header { background: rgba(255,255,255,.96); }
}
.header-inner {
  position: relative;
  height: var(--nav-h);
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 1rem;
  width: min(100% - 1.4rem, 1200px);
  margin-inline: auto;
}
.brand { display: flex; align-items: center; min-height: 44px; }
.brand-lockup {
  height: 58px; width: auto; max-width: min(72vw, 260px);
  object-fit: contain; object-position: left center;
  background: transparent;
}
.nav { display: flex; gap: .1rem; justify-self: end; flex-wrap: wrap; }
.nav a {
  display: inline-flex; align-items: center;
  min-height: 44px;
  font-size: .86rem; font-weight: 700; color: var(--navy);
  padding: 0 .6rem; border-radius: 8px;
  position: relative;
}
.nav a:hover { color: var(--teal-dark); background: rgba(0,120,232,.06); }
.nav a[aria-current="page"] { color: var(--teal-dark); }
.nav a[aria-current="page"]::after {
  content: "";
  position: absolute; left: .6rem; right: .6rem; bottom: .12rem;
  height: 2px; border-radius: 2px; background: var(--green);
}
.header-cta {
  display: inline-flex; align-items: center; min-height: 44px;
  padding: 0 .95rem; border-radius: 999px; background: var(--navy); color: #fff;
  font-size: .84rem; font-weight: 800; white-space: nowrap;
}
.header-cta:hover { background: var(--teal-dark); }
.menu-btn {
  display: none; width: 44px; height: 44px; border: 0; background: transparent; cursor: pointer;
}
.menu-btn span, .menu-btn::before, .menu-btn::after {
  display: block; height: 2px; background: var(--navy); margin: 6px 0 6px auto; border-radius: 2px;
}
.menu-btn::before, .menu-btn::after { content: ""; }
.menu-btn span { width: 18px; }
.menu-btn::before { width: 22px; }
.menu-btn::after { width: 14px; }

.hero {
  min-height: min(82vh, 760px);
  display: grid;
  align-items: end;
  margin-top: calc(var(--nav-h) * -1);
  padding: calc(var(--nav-h) + 3.4rem) 0 3rem;
  color: #fff;
  background:
    linear-gradient(160deg, rgba(2,21,54,.86) 0%, rgba(0,48,136,.52) 52%, rgba(0,120,232,.26) 100%),
    url("photos/ai-hero-plaza.jpg?v=7") 42% 48% / cover no-repeat;
}
.hero-logo {
  display: block;
  width: min(15.5rem, 68vw);
  height: auto;
  margin: 0 0 1.3rem;
  padding: .85rem 1rem;
  background: #fff;
  border-radius: 16px;
}
.hero h1 {
  margin: .2rem 0 1rem;
  font-size: clamp(1.85rem, 4.4vw, 2.85rem);
  font-weight: 700;
  letter-spacing: -.03em;
  line-height: 1.28;
}
.hero .sub { max-width: 38rem; color: rgba(255,255,255,.88); margin: 0 0 1.4rem; }
.hero .line {
  margin: 1.4rem 0 0;
  font-size: .95rem;
  color: #d5e4f2;
  border-top: 1px solid rgba(96,176,8,.65);
  padding-top: .9rem;
  max-width: 34rem;
}
.hero .sub-mobile { display: none; }
.trust {
  display: flex; flex-wrap: wrap; gap: .45rem;
  margin-top: -1.4rem; position: relative; z-index: 2;
}
.trust li {
  list-style: none;
  background: rgba(255,255,255,.9);
  border: 1px solid rgba(255,255,255,.55);
  border-radius: 999px;
  padding: .42rem .8rem;
  font-size: .8rem;
  font-weight: 800;
  color: var(--navy);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.trust { padding: 0; }

.btn-row { display: flex; gap: .6rem; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 46px; padding: 0 1.15rem; border-radius: 999px;
  font-weight: 800; border: 0; cursor: pointer;
}
.btn-primary { background: var(--teal); color: #fff; }
.btn-primary:hover { background: var(--teal-dark); }
.btn-ghost {
  background: rgba(255,255,255,.1);
  color: #fff;
  border: 1px solid rgba(255,255,255,.5);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.btn-navy { background: var(--navy); color: #fff; }
.btn-line { background: #fff; color: var(--navy); border: 1px solid var(--line); }

.section { padding: 4.2rem 0; }
.section h2 {
  margin: .28rem 0 1.15rem;
  font-size: clamp(1.55rem, 3.2vw, 2.1rem);
  letter-spacing: -.03em;
  line-height: 1.35;
  color: var(--navy);
}
.lead { color: var(--muted); max-width: 40rem; font-size: 1.02rem; }
.nums {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px;
  background: var(--line); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden;
}
.nums article { background: #fff; padding: 1.4rem 1.15rem 1.5rem; }
.nums b { display: block; font-size: 1.35rem; color: var(--navy); letter-spacing: -.03em; }
.nums p { margin: .4rem 0 0; color: var(--muted); font-size: .9rem; }

.svc { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.svc a, .svc article {
  display: grid; gap: 0;
  border: 1px solid var(--line); border-radius: var(--radius);
  padding: 0; background: #fff; color: inherit; overflow: hidden;
}
.svc .thumb { aspect-ratio: 16/9; background: #d5dee6; }
.svc .thumb img { width: 100%; height: 100%; object-fit: cover; }
.svc .body { display: grid; gap: .45rem; padding: 1.15rem 1.2rem 1.3rem; }
.svc a:hover { border-color: var(--teal); }
.svc .n { font-family: var(--font-en); font-size: .78rem; font-weight: 700; color: var(--teal); }
.svc h3 { margin: 0; font-size: 1.12rem; }
.svc p { margin: 0; color: var(--muted); font-size: .9rem; }
.svc .meta { font-size: .82rem; color: var(--navy); font-weight: 700; }
.scope {
  display: flex; flex-wrap: wrap; gap: .4rem;
  list-style: none; margin: .75rem 0 0; padding: 0;
}
.scope li {
  border: 1px solid var(--line); background: var(--wash);
  border-radius: 999px; padding: .32rem .7rem;
  font-size: .8rem; font-weight: 700; color: var(--navy);
}
.cert-strip {
  margin: 1rem 0 0;
  font-size: .88rem; color: var(--muted);
}
.cert-strip a { color: var(--teal-dark); font-weight: 800; }
.checklist {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: .45rem .7rem;
  list-style: none;
  margin: 1.1rem 0 1.25rem;
  padding: 0;
}
.checklist li {
  position: relative;
  min-height: 44px;
  display: flex;
  align-items: center;
  padding: .45rem .8rem .45rem 2.05rem;
  background: var(--wash);
  border: 1px solid var(--line);
  border-radius: 10px;
  font-size: .9rem;
  font-weight: 700;
  color: var(--navy);
}
.checklist li::before {
  content: "";
  position: absolute;
  left: .85rem;
  top: 50%;
  width: 8px;
  height: 8px;
  margin-top: -4px;
  border-radius: 50%;
  background: var(--teal);
}
.officer {
  margin: 0 0 0;
  padding: 1rem 1.15rem;
  border-left: 4px solid var(--teal);
  background: var(--wash);
  border-radius: 0 var(--radius) var(--radius) 0;
  font-size: .94rem;
  color: #33414C;
  line-height: 1.65;
}
.officer strong { color: var(--navy); }
.officer a { color: var(--teal-dark); font-weight: 800; }
.officer-band { padding: 2rem 0 0; }
.panel a[href^="tel"], .site-footer a[href^="tel"] {
  display: inline-flex; align-items: center; min-height: 44px;
}
.cap {
  display: inline-block; margin-top: .4rem;
  font-size: .75rem; font-weight: 800; letter-spacing: .02em; color: var(--muted);
}
.cap.real { color: var(--teal-dark); }
.faq { display: grid; gap: .55rem; }
.faq details {
  border: 1px solid var(--line); border-radius: var(--radius);
  background: #fff; padding: .85rem 1.1rem;
}
.faq summary {
  font-weight: 800; cursor: pointer;
  min-height: 44px; display: flex; align-items: center;
  font-size: 1.02rem; color: var(--navy);
}
.faq details p { margin: .5rem 0 0; color: var(--muted); font-size: .95rem; line-height: 1.7; }
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.steps article {
  border-top: 3px solid var(--teal); background: var(--wash);
  padding: 1.1rem 1rem 1.2rem; border-radius: 0 0 var(--radius) var(--radius);
}
.steps b { display: block; font-family: var(--font-en); font-size: .78rem; color: var(--teal); }
.steps h3 { margin: .2rem 0 .35rem; font-size: 1.05rem; }
.steps p { margin: 0; color: var(--muted); font-size: .9rem; }

.projects { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.projects article {
  border: 1px solid var(--line); border-radius: var(--radius); padding: 1.2rem 1.15rem; background: var(--wash);
}
.projects h3 { margin: 0 0 .55rem; }
.projects ul { margin: 0; padding-left: 1.05rem; color: #33414C; }

.ba-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.1rem; }
.ba {
  position: relative; border-radius: var(--radius); overflow: hidden;
  aspect-ratio: 4/3; background: #cfd8de; user-select: none;
}
.ba img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.ba-before-wrap { position: absolute; inset: 0 auto 0 0; width: 50%; overflow: hidden; border-right: 2px solid #fff; }
.ba input[type=range] {
  position: absolute; inset: auto 0 12px; width: calc(100% - 24px); margin: 0 12px; accent-color: var(--teal);
}
.ba-label { display: flex; justify-content: space-between; margin: .55rem 0 0; font-size: .84rem; color: var(--muted); font-weight: 700; }

.care {
  display: grid; grid-template-columns: 1.1fr .9fr; gap: 2rem; align-items: center;
}
.care ul { padding-left: 1.1rem; }
.why { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; }
.why article { padding: 1.15rem 1.05rem; border-top: 3px solid var(--teal); background: var(--wash); border-radius: 0 0 var(--radius) var(--radius); }
.why h3 { margin: 0 0 .35rem; }
.why p { margin: 0; color: var(--muted); font-size: .9rem; }

.certs { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.certs article, .certs a {
  border: 1px solid var(--line); border-radius: var(--radius); padding: 1.15rem 1.1rem; background: #fff;
  display: grid; gap: .35rem; color: inherit;
}
.certs h3 { margin: 0; }
.certs p { margin: 0; color: var(--muted); font-size: .88rem; }
.certs .view { color: var(--teal-dark); font-weight: 800; font-size: .84rem; }

.chronicle { margin: 0; border-top: 1px solid var(--ink); }
.chronicle-year {
  display: grid;
  grid-template-columns: 8.6rem minmax(0, 1fr);
  gap: 1.6rem 2.2rem;
  padding: 1.7rem 0 1.85rem;
  border-bottom: 1px solid var(--line);
}
.chronicle-year.is-origin { padding-top: 2.1rem; }
.chronicle-year.is-corp {
  background: var(--wash);
  padding-inline: 1.1rem;
  margin-inline: -1.1rem;
}
.chronicle-year.is-now { border-left: 3px solid var(--teal); padding-left: 1.1rem; }
.chronicle-year h3 {
  margin: 0;
  font-family: var(--font-en);
  font-size: clamp(2.05rem, 3.8vw, 3rem);
  font-weight: 600;
  letter-spacing: -.04em;
  line-height: 1;
  color: var(--navy);
}
.chronicle-year .y-note {
  display: block;
  margin-top: .5rem;
  font-family: var(--font);
  font-size: .82rem;
  font-weight: 600;
  letter-spacing: 0;
  color: var(--teal-dark);
}
.chronicle-year ol {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .62rem;
}
.chronicle-year li {
  display: grid;
  grid-template-columns: 4.8rem minmax(0, 1fr);
  gap: .75rem;
  align-items: start;
}
.chronicle-year time {
  font-family: var(--font-en);
  font-size: .74rem;
  font-weight: 600;
  letter-spacing: .04em;
  color: var(--muted);
  padding-top: .28rem;
}
.chronicle-year p {
  margin: 0;
  max-width: 38rem;
  font-size: 1.02rem;
  font-weight: 400;
  line-height: 1.55;
}
.chronicle-year .amt {
  color: var(--navy);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

.page-hero {
  background: linear-gradient(118deg, #021536 0%, #003088 62%, #0078E8 140%);
  color: #fff;
  margin-top: calc(var(--nav-h) * -1);
  padding: calc(var(--nav-h) + 2.6rem) 0 2.4rem;
}
.page-hero h1 { margin: .3rem 0 0; font-size: clamp(1.7rem, 3.5vw, 2.4rem); letter-spacing: -.03em; }
.page-hero .en { color: #9fe0d6; }

.contact-grid { display: grid; grid-template-columns: .85fr 1.15fr; gap: 1.5rem; }
.panel { background: var(--navy); color: #fff; border-radius: 18px; padding: 1.5rem; }
.panel a { color: #fff; }
.panel .muted { color: #c5d4e0; font-size: .88rem; }
.map-wrap {
  margin-top: 1.2rem; border-radius: var(--radius); overflow: hidden;
  border: 1px solid var(--line); background: #fff;
}
.map-wrap iframe { display: block; width: 100%; height: 280px; border: 0; }
.map-wrap a {
  display: flex; align-items: center; min-height: 44px;
  padding: 0 1rem; font-weight: 800; color: var(--teal-dark); font-size: .88rem;
}
.form { display: grid; gap: .8rem; background: var(--wash); border-radius: 18px; padding: 1.4rem; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: .7rem; }
label { display: grid; gap: .28rem; font-size: .86rem; font-weight: 700; }
input, textarea, select {
  width: 100%; border: 1px solid var(--line); border-radius: 10px; padding: .72rem .8rem; background: #fff;
  font-size: 16px; min-height: 44px; color: var(--ink);
}
textarea { min-height: 128px; resize: vertical; }
.agree { display: flex; gap: .5rem; align-items: flex-start; font-weight: 500; font-size: .86rem; }
.agree input { width: auto; margin-top: .2rem; }
.form-msg { min-height: 1.1em; font-size: .86rem; color: #b42318; }
.form-msg.ok { color: var(--teal-dark); }
.note { font-size: .88rem; color: #4A5662; line-height: 1.6; }

dialog { border: 0; border-radius: 16px; padding: 0; width: min(92vw, 720px); }
dialog::backdrop { background: rgba(8, 20, 32, .55); }
.dlg { padding: 1.3rem; }
.dlg-actions { display: flex; justify-content: flex-end; gap: .45rem; margin-top: 1rem; flex-wrap: wrap; }
.lightbox-img { width: 100%; max-height: 78vh; object-fit: contain; background: #111; }

.mosaic {
  display: grid; grid-template-columns: 1.4fr 1fr; gap: .7rem;
}
.mosaic img, .shot img {
  width: 100%; height: 100%; object-fit: cover; border-radius: var(--radius);
}
.mosaic .tall { min-height: 280px; }
.mosaic .stack { display: grid; gap: .7rem; }
.mosaic .stack img { height: 136px; }
.shot { margin: 0; }
.shot figcaption { margin-top: .5rem; font-size: .88rem; color: #4A5662; font-weight: 700; }
.cta-band {
  background: linear-gradient(118deg, #021536 0%, #003088 58%, #0078E8 130%);
  color: #fff; padding: 3.2rem 0;
}
.cta-band h2 { margin: .3rem 0 1rem; color: #fff; }
.cta-band p { color: #d7e4ec; max-width: 36rem; }
.inner-copy { max-width: 42rem; color: var(--muted); }
.inner-copy p { margin: 0 0 1rem; }
.cert-actions { display: flex; gap: .4rem; flex-wrap: wrap; margin-top: .35rem; }
.cert-actions button, .cert-actions span {
  border: 0; background: none; padding: 0; color: var(--teal-dark); font-weight: 800; font-size: .84rem; cursor: pointer;
  min-height: 44px; display: inline-flex; align-items: center;
}
.pill {
  display: inline-block; background: rgba(125,179,67,.16); color: var(--navy);
  font-size: .78rem; font-weight: 800; padding: .2rem .55rem; border-radius: 999px;
}
.site-footer {
  background: var(--navy-deep); color: #d7e3ec; padding: 2.5rem 0 6.4rem; font-size: .92rem;
  line-height: 1.7;
}
.site-footer strong { color: #fff; }
.foot-grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: 1.6rem; align-items: start; }
.foot-nav { display: flex; flex-wrap: wrap; gap: .85rem; margin-top: 1rem; }
.foot-nav a { color: #fff; font-weight: 800; min-height: 44px; display: inline-flex; align-items: center; }
.foot-lockup {
  display: block; height: 48px; width: auto; max-width: min(72vw, 240px);
  object-fit: contain; object-position: left center;
  background: transparent; margin-bottom: .85rem;
}
.foot-brand {
  display: flex; align-items: center; gap: .8rem;
  margin: 0 0 .9rem;
}
.foot-brand img {
  width: auto; height: 72px; object-fit: contain;
  background: #fff; border-radius: 10px; padding: .35rem .45rem; flex: none;
}
.foot-brand p { margin: 0; }
.foot-brand strong {
  display: block; color: #fff; font-size: 1.18rem; letter-spacing: -.03em; line-height: 1.2;
}
.foot-brand span {
  display: block; margin-top: .18rem;
  font-family: var(--font-en); font-size: .7rem; font-weight: 700;
  letter-spacing: .08em; color: #9ec7ef;
}
.foot-mark {
  width: 44px; height: 44px; object-fit: contain; margin-bottom: .7rem;
  background: transparent;
}
.foot-copy { margin: 0 0 .4rem; color: #e8eef3; }
.foot-slogan { margin: 0; color: #b8d4a0; font-weight: 700; }

.mobile-cta {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 50;
  display: none; grid-template-columns: 1fr 1fr;
  background: var(--glass); border-top: 1px solid var(--glass-line);
  backdrop-filter: blur(16px) saturate(1.3);
  -webkit-backdrop-filter: blur(16px) saturate(1.3);
}
.mobile-cta a { min-height: 54px; display: grid; place-items: center; font-weight: 800; }
.mobile-cta a:last-child { background: var(--teal); color: #fff; }

@media (max-width: 1180px) {
  .nav { display: none; }
  .nav.open {
    display: flex; flex-direction: column; position: absolute; right: 1rem; top: calc(var(--nav-h) - 6px);
    background: var(--glass); border: 1px solid var(--glass-line); border-radius: 12px; padding: .55rem .7rem; z-index: 60;
    align-items: stretch;
    backdrop-filter: blur(18px) saturate(1.3);
    -webkit-backdrop-filter: blur(18px) saturate(1.3);
  }
  .nav.open a { min-height: 44px; width: 100%; }
  .menu-btn { display: block; justify-self: end; }
  .header-inner { grid-template-columns: 1fr auto 44px; }
}
@media (max-width: 980px) {
  .nums, .why, .certs, .projects, .ba-grid, .care, .contact-grid, .foot-grid, .svc, .steps, .checklist { grid-template-columns: 1fr 1fr; }
  .chronicle-year { grid-template-columns: 1fr; gap: .7rem; }
  .chronicle-year.is-now { padding-left: .85rem; }
  .header-cta { display: none; }
  .header-inner { grid-template-columns: 1fr 44px; }
  .mobile-cta { display: grid; }
}
@media (max-width: 640px) {
  .nums, .why, .certs, .projects, .ba-grid, .care, .contact-grid, .foot-grid, .svc, .form-row, .mosaic, .steps, .checklist { grid-template-columns: 1fr; }
  .chronicle-year { padding-top: 1.35rem; padding-bottom: 1.4rem; }
  .chronicle-year.is-corp { margin-inline: -.2rem; padding-inline: .2rem; }
  .chronicle-year li { grid-template-columns: 3.6rem minmax(0, 1fr); gap: .45rem; }
  .mosaic .stack img, .mosaic .tall { height: 200px; min-height: 0; }
  .hero { min-height: 62vh; }
  .hero-logo { width: min(13.5rem, 78vw); margin-bottom: .85rem; padding: .7rem .75rem; }
  .hero .sub { display: none; }
  .hero .sub-mobile { display: block; margin: 0 0 1.2rem; color: rgba(255,255,255,.88); }
  .hero .line { display: none; }
}