:root{
  --bg:#ffffff;
  --bg-alt:#f6f8fc;
  --text:#0c1324;
  --muted:#5b667a;

  --navy:#0b1b3a;
  --blue:#1f6fff;
  --blue-2:#3a86ff;

  --card:#ffffff;
  --border: rgba(11,27,58,.12);
  --shadow: 0 18px 60px rgba(11,27,58,.10);

  --radius: 18px;
  --radius-lg: 26px;

  --container: 1140px;

  --focus: 0 0 0 3px rgba(31,111,255,.28);
}

*{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Noto Sans KR", "Apple SD Gothic Neo", "Malgun Gothic", sans-serif;
  color:var(--text);
  background:var(--bg);
  line-height:1.55;
}

a{ color:inherit; text-decoration:none; }
a:hover{ text-decoration:underline; }
img{ max-width:100%; display:block; }

.container{
  width: min(var(--container), calc(100% - 40px));
  margin: 0 auto;
}

.nowrap{ white-space:nowrap; }
.sr-only{
  position:absolute; width:1px; height:1px; padding:0; margin:-1px; overflow:hidden; clip:rect(0,0,0,0); border:0;
}

/* Skip link */
.skip-link{
  position:absolute;
  left:12px; top:12px;
  padding:10px 12px;
  background:var(--navy);
  color:#fff;
  border-radius:12px;
  transform: translateY(-140%);
  transition: transform .18s ease;
  z-index: 9999;
}
.skip-link:focus{ transform: translateY(0); outline:none; box-shadow: var(--focus); }

/* Header */
.header{
  position:sticky;
  top:0;
  z-index: 1000;
  background: rgba(255,255,255,.82);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.header__inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding: 12px 0;
}

.brand{ display:flex; align-items:center; gap:10px; }
.brand__logo{
  width: 44px;
  height: 44px;
  border-radius: 12px;
  border: 1px solid var(--border);
  object-fit: cover;
  background:#fff;
}
.brand__text{
  font-weight: 800;
  letter-spacing: .3px;
  color: var(--navy);
}

.nav{ display:flex; align-items:center; gap:10px; }
.nav__toggle{
  display:none;
  border:1px solid var(--border);
  background:#fff;
  border-radius: 12px;
  width: 44px; height: 44px;
  cursor:pointer;
}
.nav__toggle:focus{ outline:none; box-shadow: var(--focus); }
.nav__toggleBars{
  display:block;
  width: 18px; height: 2px;
  background: var(--navy);
  margin: 0 auto;
  position: relative;
}
.nav__toggleBars::before,
.nav__toggleBars::after{
  content:"";
  position:absolute;
  left:0;
  width:18px; height:2px;
  background: var(--navy);
}
.nav__toggleBars::before{ top:-6px; }
.nav__toggleBars::after{ top:6px; }

.nav__menu{
  display:flex;
  align-items:center;
  gap: 16px;
}
.nav__link{
  padding: 10px 10px;
  border-radius: 12px;
  color: var(--muted);
  font-weight: 600;
}
.nav__link:hover{ background: rgba(11,27,58,.06); text-decoration:none; }
.nav__link:focus{ outline:none; box-shadow: var(--focus); }
.nav__cta{
  padding: 10px 14px;
  border-radius: 12px;
  background: var(--navy);
  color: #fff;
  font-weight: 700;
  border: 1px solid rgba(11,27,58,.08);
}
.nav__cta:hover{ text-decoration:none; filter: brightness(1.02); }
.nav__cta:focus{ outline:none; box-shadow: var(--focus); }

/* Buttons */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  padding: 12px 16px;
  border-radius: 14px;
  border: 1px solid var(--border);
  font-weight: 800;
  cursor:pointer;
  transition: transform .12s ease, box-shadow .12s ease, background .12s ease, border-color .12s ease;
  user-select:none;
}
.btn:active{ transform: translateY(1px); }
.btn:focus{ outline:none; box-shadow: var(--focus); }

.btn--primary{
  background: linear-gradient(135deg, var(--blue), var(--blue-2));
  color: #fff;
  border-color: rgba(31,111,255,.45);
}
.btn--ghost{
  background: #fff;
  color: var(--navy);
}
.btn--sm{ padding: 10px 12px; border-radius: 12px; font-weight: 800; }

/* Sections */
.section{
  padding: 76px 0;
}
.section--tight{ padding: 56px 0; }
.section--alt{ background: var(--bg-alt); }

.sectionHead{ margin-bottom: 18px; }
.sectionTitle{
  margin:0;
  font-size: clamp(22px, 2.2vw, 30px);
  letter-spacing: -.3px;
  color: var(--navy);
}
.sectionTitle--sm{ font-size: clamp(18px, 2vw, 22px); }
.sectionDesc{
  margin: 8px 0 0;
  color: var(--muted);
  max-width: 72ch;
}

.eyebrow{
  margin:0 0 10px;
  color: var(--blue);
  font-weight: 800;
  letter-spacing: .3px;
}
.muted{ color: var(--muted); }
.req{ color: #d13f3f; font-weight: 900; }

/* Hero */
.hero{
  padding: 84px 0 54px;
  position: relative;
  overflow: hidden;
}
.hero__grid{
  display:grid;
  grid-template-columns: 1.2fr .8fr;
  gap: 28px;
  align-items: center;
}
.hero__title{
  margin: 0;
  font-size: clamp(28px, 3.2vw, 46px);
  line-height: 1.15;
  letter-spacing: -.6px;
  color: var(--navy);
}
.hero__desc{
  margin: 14px 0 0;
  color: var(--muted);
  max-width: 70ch;
}
.hero__cta{
  margin-top: 18px;
  display:flex;
  flex-wrap:wrap;
  gap: 10px;
}
.hero__note{
  margin-top: 18px;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: rgba(11,27,58,.02);
  display:flex;
  gap: 10px;
  align-items: center;
}
.chip{
  display:inline-flex;
  align-items:center;
  padding: 7px 10px;
  border-radius: 999px;
  font-weight: 900;
  font-size: 12px;
  color: var(--navy);
  background: rgba(31,111,255,.10);
  border: 1px solid rgba(31,111,255,.18);
}
.chip--soft{
  background: rgba(11,27,58,.06);
  border-color: rgba(11,27,58,.12);
}

.hero__visual{
  position: relative;
  min-height: 380px;
}
.visualCard{
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  overflow:hidden;
}
.visualCard__top{
  padding: 14px 14px 10px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  border-bottom: 1px solid var(--border);
}
.badge{
  font-weight: 900;
  font-size: 12px;
  color: #fff;
  background: var(--navy);
  padding: 6px 10px;
  border-radius: 999px;
}
.visualDots{ display:flex; gap:6px; }
.visualDots span{
  width:8px; height:8px; border-radius:50%;
  background: rgba(11,27,58,.18);
}
.visualCard__body{ padding: 14px; }
.visualStats{
  display:grid;
  grid-template-columns: 1fr;
  gap: 10px;
  margin-top: 10px;
}
.vItem{
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 10px 12px;
  background: rgba(11,27,58,.02);
}
.vLabel{ font-weight: 900; color: var(--navy); font-size: 13px; }
.vValue{ color: var(--muted); font-weight: 700; margin-top: 4px; }

.heroGlow{
  position:absolute;
  inset:-30%;
  background: radial-gradient(circle at 30% 20%, rgba(31,111,255,.22), transparent 55%),
              radial-gradient(circle at 70% 60%, rgba(11,27,58,.18), transparent 60%);
  filter: blur(30px);
  pointer-events:none;
  z-index: -1;
}

/* Placeholders */
.placeholder{
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: linear-gradient(135deg, rgba(31,111,255,.14), rgba(11,27,58,.08));
  min-height: 180px;
}
.placeholder--hero{ min-height: 210px; border-radius: 18px; }
.placeholder--about{ min-height: 240px; }
.placeholder--service{ min-height: 210px; background: linear-gradient(135deg, rgba(11,27,58,.10), rgba(31,111,255,.10)); }
.placeholder--service2{ min-height: 210px; background: linear-gradient(135deg, rgba(31,111,255,.16), rgba(11,27,58,.06)); }
.placeholder--service3{ min-height: 210px; background: linear-gradient(135deg, rgba(11,27,58,.12), rgba(31,111,255,.08)); }
.placeholder--platform{ min-height: 170px; }
.placeholder--platform2{ min-height: 170px; background: linear-gradient(135deg, rgba(11,27,58,.12), rgba(31,111,255,.12)); }
.placeholder--map{ min-height: 260px; background: linear-gradient(135deg, rgba(11,27,58,.06), rgba(31,111,255,.12)); }

/* Stats */
.statsGrid{
  display:grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-top: 18px;
}
.statCard{
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: 0 10px 30px rgba(11,27,58,.06);
}
.statLabel{ margin:0; color: var(--muted); font-weight: 800; }
.statValue{
  margin: 8px 0 0;
  font-size: 30px;
  font-weight: 1000;
  color: var(--navy);
  letter-spacing: -.4px;
}
.unit{ font-size: 18px; margin-left: 4px; color: var(--muted); font-weight: 900; }
.statHelp{ margin: 8px 0 0; color: var(--muted); font-size: 13px; }

/* About */
.aboutGrid{
  display:grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 14px;
  margin-top: 18px;
}
.aboutCard{
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: 0 10px 30px rgba(11,27,58,.06);
}
.aboutCard--visual{ padding: 14px; }
.caption{ margin-top: 10px; color: var(--muted); font-size: 12px; }

/* Cards */
.cardGrid{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-top: 18px;
}
.card{
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: 0 10px 30px rgba(11,27,58,.06);
}
.card__icon{
  width: 44px; height: 44px;
  border-radius: 14px;
  display:flex; align-items:center; justify-content:center;
  font-weight: 1000;
  background: rgba(31,111,255,.10);
  border: 1px solid rgba(31,111,255,.18);
  color: var(--navy);
}
.card__title{ margin: 12px 0 0; font-size: 18px; color: var(--navy); }
.card__desc{ margin: 10px 0 0; color: var(--muted); }
.card__link{ display:inline-block; margin-top: 12px; color: var(--blue); font-weight: 900; }
.card__link:focus{ outline:none; box-shadow: var(--focus); border-radius: 10px; }

/* Services */
.serviceStack{ display:flex; flex-direction:column; gap: 14px; margin-top: 18px; }
.service{
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 18px;
  box-shadow: var(--shadow);
}
.service__head{
  display:flex;
  flex-wrap:wrap;
  align-items:baseline;
  justify-content:space-between;
  gap: 10px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
}
.service__title{ margin:0; font-size: 18px; color: var(--navy); }
.service__tag{
  font-weight: 900;
  font-size: 12px;
  color: var(--navy);
  background: rgba(11,27,58,.06);
  border: 1px solid rgba(11,27,58,.12);
  padding: 6px 10px;
  border-radius: 999px;
}
.service__body{
  display:grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 14px;
  margin-top: 14px;
}
.service__visual{ display:flex; flex-direction:column; gap: 10px; }
.miniBadges{ display:flex; gap:8px; flex-wrap:wrap; }
.miniBadges span{
  font-size: 12px;
  font-weight: 900;
  color: var(--navy);
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,.8);
}
.miniFlow{
  display:flex;
  align-items:center;
  justify-content:center;
  gap: 10px;
  padding: 10px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: rgba(11,27,58,.02);
  font-weight: 900;
  color: var(--navy);
}
.kapaNote{
  padding: 10px 12px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: rgba(11,27,58,.02);
  display:flex;
  gap: 10px;
  align-items:center;
  font-weight: 800;
  color: var(--navy);
}

.featureGrid{
  margin-top: 12px;
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}
.feature{
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 12px;
  background: rgba(11,27,58,.02);
}
.feature__title{ font-weight: 1000; color: var(--navy); }
.feature__desc{ margin: 6px 0 0; color: var(--muted); font-size: 13px; }

.inlineCta{
  margin-top: 12px;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap: 10px;
}

/* Timeline */
.timelineWrap{ margin-top: 22px; }
.timeline{
  list-style:none;
  padding:0;
  margin: 16px 0 0;
  display:flex;
  flex-direction:column;
  gap: 12px;
}
.timeline__item{
  display:flex;
  gap: 12px;
  align-items:flex-start;
  padding: 14px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: rgba(255,255,255,.75);
}
.timeline__dot{
  width: 12px; height: 12px;
  margin-top: 5px;
  border-radius: 50%;
  background: var(--blue);
  box-shadow: 0 0 0 3px rgba(31,111,255,.18);
}
.timeline__title{ font-weight: 1000; color: var(--navy); }
.timeline__desc{ margin: 6px 0 0; color: var(--muted); }

/* Platforms */
.platformGrid{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-top: 18px;
}
.platformCard{
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 18px;
  box-shadow: var(--shadow);
  display:flex;
  flex-direction:column;
  gap: 12px;
}
.platformCard__top{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap: 10px;
}
.platformCard__title{ margin:0; font-size: 18px; color: var(--navy); }
.platformCard__chip{
  font-size: 12px; font-weight: 900;
  color: #fff;
  background: var(--navy);
  padding: 6px 10px;
  border-radius: 999px;
}
.platformCard__desc{ margin:0; color: var(--muted); }

/* Network */
.networkGrid{
  display:grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 14px;
  margin-top: 18px;
}
.networkMap{
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 14px;
  box-shadow: var(--shadow);
}
.mapLegend{
  margin-top: 10px;
  display:flex;
  flex-wrap:wrap;
  gap: 10px;
  color: var(--muted);
  font-weight: 800;
}
.mapLegend strong{ color: var(--navy); }

.networkCards{ display:flex; flex-direction:column; gap: 12px; }
.nCard{
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: 0 10px 30px rgba(11,27,58,.06);
}
.nCard__title{ margin:0; font-size: 16px; color: var(--navy); }
.nCard__desc{ margin: 8px 0 0; color: var(--muted); }

.partnerSection{ margin-top: 22px; }
.partnerGrid{
  margin-top: 16px;
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}
.pCard{
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: 0 10px 30px rgba(11,27,58,.06);
}
.pCard__icon{
  width: 40px; height: 40px;
  border-radius: 14px;
  display:flex; align-items:center; justify-content:center;
  font-weight: 1000;
  background: rgba(11,27,58,.06);
  border: 1px solid rgba(11,27,58,.12);
  color: var(--navy);
}
.pCard__title{ margin: 10px 0 0; color: var(--navy); }
.pCard__desc{ margin: 8px 0 0; color: var(--muted); font-size: 13px; }

.ctaBar{
  margin-top: 16px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap: 12px;
  padding: 16px;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(31,111,255,.24);
  background: linear-gradient(135deg, rgba(31,111,255,.12), rgba(11,27,58,.04));
}
.ctaBar__text strong{ color: var(--navy); }
.ctaBar__text p{ margin: 6px 0 0; }

/* Lists */
.list{ margin: 10px 0 0; padding-left: 18px; color: var(--muted); }
.list li{ margin: 6px 0; }
.list--compact li{ margin: 4px 0; }
.pillRow{ display:flex; flex-wrap:wrap; gap:8px; margin-top: 10px; }
.pill{
  font-size: 12px;
  font-weight: 900;
  color: var(--navy);
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,.75);
}

/* Contact */
.contactGrid{
  display:grid;
  grid-template-columns: .9fr 1.1fr;
  gap: 14px;
  margin-top: 18px;
}
.contactInfo{
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 18px;
  box-shadow: var(--shadow);
}
.cardTitle{ margin:0; color: var(--navy); font-size: 18px; }
.infoList{ margin-top: 12px; display:flex; flex-direction:column; gap: 10px; }
.infoItem{
  padding: 12px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: rgba(11,27,58,.02);
}
.infoLabel{ font-weight: 900; color: var(--navy); font-size: 12px; }
.infoValue{ margin-top: 6px; color: var(--muted); font-weight: 700; }

.noticeBox{
  margin-top: 14px;
  padding: 12px;
  border-radius: 14px;
  border: 1px solid rgba(11,27,58,.12);
  background: rgba(11,27,58,.04);
}
.noticeBox strong{ color: var(--navy); }

.form{
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 18px;
  box-shadow: var(--shadow);
}
.formRow{ display:flex; flex-direction:column; gap: 8px; margin-bottom: 12px; }
.formRow--two{ display:grid; grid-template-columns: 1fr 1fr; gap: 12px; }
label{ font-weight: 900; color: var(--navy); }
input, select, textarea{
  width: 100%;
  padding: 12px 12px;
  border-radius: 14px;
  border: 1px solid var(--border);
  font: inherit;
  background: #fff;
}
input:focus, select:focus, textarea:focus{ outline:none; box-shadow: var(--focus); border-color: rgba(31,111,255,.45); }
.fieldHelp{ margin: 0; color: var(--muted); font-size: 12px; }
input[aria-invalid="true"], select[aria-invalid="true"], textarea[aria-invalid="true"]{
  border-color: rgba(209,63,63,.55);
  box-shadow: 0 0 0 3px rgba(209,63,63,.16);
}
.formActions{
  display:flex;
  flex-wrap:wrap;
  gap: 10px;
  margin-top: 6px;
  align-items:center;
}
.formToast{
  margin-top: 10px;
  padding: 12px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: rgba(11,27,58,.02);
  color: var(--muted);
  display:none;
}

/* Footer */
.footer{
  padding: 26px 0;
  border-top: 1px solid var(--border);
  background:#fff;
}
.footer__grid{
  display:grid;
  grid-template-columns: 1.4fr .8fr .8fr;
  gap: 14px;
  align-items:start;
}
.footer__title{ font-weight: 1000; color: var(--navy); }
.footer__links{ display:flex; flex-direction:column; gap: 8px; }
.footer__links a{ color: var(--muted); font-weight: 800; padding: 6px 8px; border-radius: 12px; }
.footer__links a:hover{ background: rgba(11,27,58,.06); text-decoration:none; }
.footer__links a:focus{ outline:none; box-shadow: var(--focus); }
.footer__meta{ color: var(--muted); }
.toTop{
  display:inline-block;
  margin-top: 8px;
  padding: 8px 10px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(11,27,58,.02);
  font-weight: 900;
}
.toTop:focus{ outline:none; box-shadow: var(--focus); }

/* Reveal animations */
.reveal{
  opacity: 0;
  transform: translateY(14px);
  transition: opacity .6s ease, transform .6s ease;
}
.reveal.in-view{
  opacity: 1;
  transform: translateY(0);
}

/* Responsive */
@media (max-width: 980px){
  .hero__grid{ grid-template-columns: 1fr; }
  .statsGrid{ grid-template-columns: 1fr 1fr; }
  .aboutGrid{ grid-template-columns: 1fr; }
  .cardGrid{ grid-template-columns: 1fr; }
  .service__body{ grid-template-columns: 1fr; }
  .platformGrid{ grid-template-columns: 1fr; }
  .networkGrid{ grid-template-columns: 1fr; }
  .partnerGrid{ grid-template-columns: 1fr 1fr; }
  .contactGrid{ grid-template-columns: 1fr; }
  .footer__grid{ grid-template-columns: 1fr; }
}

@media (max-width: 720px){
  .nav__toggle{ display:inline-flex; align-items:center; justify-content:center; }
  .nav__menu{
    position: absolute;
    right: 20px;
    top: 66px;
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
    padding: 10px;
    width: min(320px, calc(100vw - 40px));
    background: rgba(255,255,255,.98);
    border: 1px solid var(--border);
    border-radius: 18px;
    box-shadow: var(--shadow);
    display:none;
  }
  .nav__menu.is-open{ display:flex; }
  .nav__link, .nav__cta{ width:100%; text-align:center; }
  .formRow--two{ grid-template-columns: 1fr; }
  .partnerGrid{ grid-template-columns: 1fr; }
}