:root {
  --bg: #081018;
  --bg-soft: #0e1722;
  --surface: #111d2b;
  --surface-2: #162435;
  --text: #f5f7fb;
  --muted: #b8c3d1;
  --line: rgba(255,255,255,0.08);
  --primary: #4cc0ff;
  --primary-2: #87e0ff;
  --max: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Pretendard", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top right, rgba(76,192,255,0.18), transparent 26%),
    linear-gradient(180deg, #07111b 0%, #0a1420 100%);
  line-height: 1.7;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
.container { width: min(calc(100% - 48px), var(--max)); margin: 0 auto; }
.narrow { width: min(calc(100% - 48px), 860px); margin: 0 auto; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(8, 16, 24, 0.84);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 76px;
  gap: 24px;
}
.logo-wrap {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
}
.logo, .footer-logo { width: 36px; height: 36px; }
.main-nav {
  display: flex;
  gap: 26px;
  flex-wrap: wrap;
}
.main-nav a {
  color: var(--muted);
  font-size: 0.95rem;
}
.main-nav a:hover { color: var(--text); }

.hero {
  padding: 110px 0 80px;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 40px;
  align-items: center;
}
.eyebrow, .section-label {
  margin: 0 0 14px;
  color: var(--primary-2);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}
.hero h1, .section h2, .site-footer h2 {
  margin: 0 0 20px;
  line-height: 1.18;
  letter-spacing: -0.03em;
}
.hero h1 { font-size: clamp(2.4rem, 5vw, 4.6rem); }
.section h2, .site-footer h2 { font-size: clamp(1.9rem, 3vw, 3rem); }
.hero-text, .section p, .site-footer p, .service-copy li {
  color: var(--muted);
  font-size: 1.05rem;
}
.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 28px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 22px;
  border-radius: 999px;
  font-weight: 700;
  transition: transform 0.2s ease, opacity 0.2s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary {
  color: #04111a;
  background: linear-gradient(90deg, var(--primary), var(--primary-2));
}
.btn-secondary {
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.03);
}
.hero-visual img {
  width: 100%;
  filter: drop-shadow(0 24px 50px rgba(0,0,0,0.35));
}

.section { padding: 88px 0; }
.section-dark { background: rgba(255,255,255,0.02); }
.section-accent { background: linear-gradient(180deg, rgba(76,192,255,0.06), rgba(76,192,255,0.02)); }

.service-block, .case-card, .people-grid, .footer-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: center;
}
.service-block {
  margin-top: 34px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 28px;
  background: linear-gradient(180deg, rgba(255,255,255,0.03), rgba(255,255,255,0.015));
}
.service-block.reverse .service-copy { order: 2; }
.service-block.reverse .service-image { order: 1; }
.service-copy h3, .case-copy h3, .site-footer h3 {
  margin: 0 0 12px;
  font-size: 1.6rem;
}
.service-copy ul {
  margin: 16px 0 0;
  padding-left: 20px;
}
.service-image img, .case-image img, .people-image img {
  width: 100%;
  border-radius: 22px;
  border: 1px solid var(--line);
  background: var(--surface);
}
.case-card {
  margin-top: 28px;
  padding: 28px;
  border-radius: 28px;
  background: var(--surface);
  border: 1px solid var(--line);
}
.metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 24px;
}
.metrics > div {
  padding: 18px;
  border-radius: 20px;
  background: var(--surface-2);
  border: 1px solid var(--line);
}
.metrics strong {
  display: block;
  font-size: 1.8rem;
  margin-bottom: 6px;
}
.metrics span {
  color: var(--muted);
  font-size: 0.95rem;
}

.site-footer {
  padding: 88px 0 32px;
  border-top: 1px solid var(--line);
}
.map-frame {
  border-radius: 24px;
  overflow: hidden;
  border: 1px solid var(--line);
  height: 380px;
}
.map-frame iframe {
  display: block;
  width: 100%;
  height: 100%;
  border: 0;
}
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: 34px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}

@media (max-width: 920px) {
  .hero-grid,
  .service-block,
  .case-card,
  .people-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .service-block.reverse .service-copy,
  .service-block.reverse .service-image { order: initial; }
  .metrics { grid-template-columns: 1fr; }
}

@media (max-width: 700px) {
  .header-inner, .footer-bottom { flex-direction: column; align-items: flex-start; }
  .main-nav { gap: 14px 18px; }
  .hero { padding-top: 72px; }
  .section, .site-footer { padding: 68px 0; }
  .service-block, .case-card { padding: 20px; }
}