/* ═══════════════════════════════════════════
   DASCO — Shared Stylesheet  v1
   Theme: Steel Blue  |  Font: Noto Sans
═══════════════════════════════════════════ */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --blue:       #0066CC;
  --blue-dark:  #0052a3;
  --blue-light: #e8f0fb;
  --navy:       #1a1e2e;
  --navy-mid:   #2b3148;
  --charcoal:   #333744;
  --gray-dark:  #555b6e;
  --gray:       #888e9e;
  --border:     #dddfe5;
  --bg-light:   #f4f5f7;
  --bg-off:     #f9f9fb;
  --white:      #ffffff;
  --font: 'Noto Sans', 'Noto Sans KR', sans-serif;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--white);
  color: var(--charcoal);
  font-size: 15px;
  line-height: 1.7;
  overflow-x: hidden;
}

/* ── TOP BAR ── */
.topbar {
  background: var(--navy);
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding: 0 3rem;
  gap: 1.5rem;
}
.topbar a {
  color: rgba(255,255,255,0.48);
  font-size: 0.72rem;
  text-decoration: none;
  font-weight: 400;
  letter-spacing: 0.05em;
  transition: color 0.2s;
}
.topbar a:hover { color: var(--blue); }
.topbar-sep { width: 1px; height: 11px; background: rgba(255,255,255,0.14); }

/* ── NAV ── */
nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--white);
  border-bottom: 2px solid var(--navy);
  display: flex;
  align-items: stretch;
  padding: 0 3rem;
  height: 70px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.06);
}
.nav-logo { display: flex; align-items: center; margin-right: 3rem; flex-shrink: 0; }
.nav-logo img { height: 36px; display: block; }
.nav-links { display: flex; list-style: none; align-items: stretch; flex: 1; }
.nav-links > li { display: flex; align-items: center; position: relative; }
.nav-links > li > a {
  display: flex;
  align-items: center;
  height: 100%;
  padding: 0 1.2rem;
  text-decoration: none;
  color: var(--navy);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  border-bottom: 3px solid transparent;
  margin-bottom: -2px;
  transition: color 0.2s, border-color 0.2s;
  white-space: nowrap;
}
.nav-links > li > a:hover,
.nav-links > li > a.active { color: var(--blue); border-bottom-color: var(--blue); }
.nav-dropdown {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--white);
  border-top: 2px solid var(--blue);
  min-width: 220px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.1);
  z-index: 200;
  list-style: none;
}
.nav-links > li:hover .nav-dropdown { display: block; }
.nav-dropdown li a {
  display: block;
  padding: 0.75rem 1.4rem;
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--charcoal);
  text-decoration: none;
  border-left: 3px solid transparent;
  transition: background 0.2s, border-color 0.2s, color 0.2s;
  letter-spacing: 0.03em;
}
.nav-dropdown li a:hover {
  background: var(--bg-light);
  border-left-color: var(--blue);
  color: var(--blue);
}
.nav-cta-wrap { display: flex; align-items: center; margin-left: auto; }
.nav-cta {
  background: var(--blue);
  color: var(--white) !important;
  padding: 0 1.8rem;
  height: 42px;
  display: flex;
  align-items: center;
  font-weight: 700;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  transition: background 0.2s;
  border-bottom: none !important;
  margin-bottom: 0 !important;
}
.nav-cta:hover { background: var(--blue-dark) !important; }

/* ── PAGE HERO BANNER ── */
.page-hero {
  background: var(--navy);
  padding: 4rem 3rem;
  position: relative;
  overflow: hidden;
}
.page-hero::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 4px;
  background: var(--blue);
}
.page-hero::after {
  content: attr(data-title);
  position: absolute;
  right: 3rem;
  top: 50%;
  transform: translateY(-50%);
  font-size: 7rem;
  font-weight: 900;
  color: rgba(255,255,255,0.035);
  letter-spacing: -0.05em;
  pointer-events: none;
  user-select: none;
  line-height: 1;
}
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.8rem;
}
.breadcrumb a, .breadcrumb span {
  font-size: 0.72rem;
  color: rgba(255,255,255,0.4);
  text-decoration: none;
  font-weight: 400;
  letter-spacing: 0.05em;
}
.breadcrumb a:hover { color: var(--blue); }
.breadcrumb .sep { color: rgba(255,255,255,0.2); }
.breadcrumb .current { color: rgba(255,255,255,0.65); }
.page-hero h1 {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 900;
  color: var(--white);
  letter-spacing: -0.025em;
  line-height: 1.15;
}
.page-hero h1 span { color: var(--blue); }

/* ── WRAP ── */
.wrap { max-width: 1200px; margin: 0 auto; padding: 0 3rem; }

/* ── SECTION HEADERS ── */
.sec-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  padding-bottom: 1.2rem;
  margin-bottom: 3rem;
  border-bottom: 1px solid var(--border);
}
.kicker {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--blue);
  margin-bottom: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}
.kicker::before { content: ''; display: block; width: 18px; height: 2px; background: var(--blue); }
.sec-title {
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  font-weight: 900;
  color: var(--navy);
  letter-spacing: -0.025em;
  line-height: 1.15;
}
.sec-title span { color: var(--blue); }
.more-link {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--navy);
  text-decoration: none;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-bottom: 2px solid var(--navy);
  padding-bottom: 2px;
  transition: color 0.2s, border-color 0.2s;
  white-space: nowrap;
}
.more-link:hover { color: var(--blue); border-color: var(--blue); }

/* ── BUTTONS ── */
.btn-blue {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--blue);
  color: var(--white);
  padding: 0.78rem 2rem;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-decoration: none;
  border: 2px solid var(--blue);
  transition: background 0.2s, border-color 0.2s;
  cursor: pointer;
  font-family: var(--font);
}
.btn-blue:hover { background: var(--blue-dark); border-color: var(--blue-dark); }
.btn-outline-blue {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: transparent;
  color: var(--blue);
  padding: 0.78rem 2rem;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-decoration: none;
  border: 2px solid var(--blue);
  transition: background 0.2s, color 0.2s;
  cursor: pointer;
  font-family: var(--font);
}
.btn-outline-blue:hover { background: var(--blue); color: var(--white); }
.btn-ghost {
  display: inline-flex;
  align-items: center;
  background: transparent;
  color: var(--white);
  padding: 0.78rem 2rem;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-decoration: none;
  border: 2px solid rgba(255,255,255,0.32);
  transition: border-color 0.2s;
}
.btn-ghost:hover { border-color: rgba(255,255,255,0.8); }

/* ── INFO BOX ── */
.info-box {
  background: var(--blue-light);
  border-left: 3px solid var(--blue);
  padding: 1.2rem 1.5rem;
  margin: 1.5rem 0;
  font-size: 0.88rem;
  color: var(--navy);
  font-weight: 500;
}

/* ── CONTENT PROSE ── */
.prose h2 {
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--navy);
  letter-spacing: -0.02em;
  margin: 2.5rem 0 0.8rem;
  padding-bottom: 0.6rem;
  border-bottom: 1px solid var(--border);
}
.prose h3 { font-size: 1.1rem; font-weight: 800; color: var(--navy); margin: 1.8rem 0 0.6rem; }
.prose p { font-size: 0.93rem; color: var(--gray-dark); line-height: 1.85; margin-bottom: 1rem; }
.prose ul { list-style: none; margin: 1rem 0 1.5rem; }
.prose ul li {
  font-size: 0.9rem;
  color: var(--gray-dark);
  padding: 0.4rem 0 0.4rem 1.4rem;
  position: relative;
  line-height: 1.7;
}
.prose ul li::before {
  content: '';
  position: absolute;
  left: 0; top: 0.85rem;
  width: 8px; height: 2px;
  background: var(--blue);
}
.prose strong { color: var(--navy); font-weight: 700; }

/* ── STATS BAR ── */
.stats-bar { background: var(--navy); }
.stats-inner { display: grid; grid-template-columns: repeat(4, 1fr); max-width: 1200px; margin: 0 auto; }
.stat-cell {
  padding: 3rem 2rem;
  border-right: 1px solid rgba(255,255,255,0.07);
  text-align: center;
  position: relative;
}
.stat-cell:last-child { border-right: none; }
.stat-cell::before {
  content: '';
  position: absolute;
  top: 0; left: 50%;
  transform: translateX(-50%);
  width: 36px; height: 3px;
  background: var(--blue);
}
.stat-num { font-size: 3rem; font-weight: 900; color: var(--white); letter-spacing: -0.04em; line-height: 1; margin-bottom: 0.5rem; }
.stat-num sup { font-size: 1.1rem; font-weight: 700; color: var(--blue); vertical-align: super; }
.stat-lbl { font-size: 0.7rem; font-weight: 500; color: rgba(255,255,255,0.38); letter-spacing: 0.12em; text-transform: uppercase; }

/* ── FOOTER ── */
.footer-top {
  background: var(--navy-mid);
  border-top: 3px solid var(--blue);
  padding: 2.8rem 3rem;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 3.5rem;
  align-items: center;
}
.footer-logo img { height: 30px; filter: brightness(0) invert(1); opacity: 0.75; display: block; }
.footer-info { display: flex; flex-wrap: wrap; gap: 0.4rem 2rem; }
.footer-info span { font-size: 0.78rem; color: rgba(255,255,255,0.36); font-weight: 300; white-space: nowrap; }
.footer-info strong { color: rgba(255,255,255,0.62); font-weight: 600; }
.footer-bottom {
  background: var(--navy);
  padding: 1.1rem 3rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.footer-bottom p { font-size: 0.74rem; color: rgba(255,255,255,0.22); font-weight: 300; }
.footer-links { display: flex; gap: 1.5rem; list-style: none; }
.footer-links a { font-size: 0.72rem; color: rgba(255,255,255,0.22); text-decoration: none; letter-spacing: 0.06em; transition: color 0.2s; }
.footer-links a:hover { color: var(--blue); }

/* ── RESPONSIVE ── */
@media (max-width: 1100px) {
  .wrap { padding: 0 2rem; }
  nav { padding: 0 2rem; }
  .topbar { padding: 0 2rem; }
  .page-hero { padding: 3rem 2rem; }
  .page-hero::after { display: none; }
  .stats-inner { grid-template-columns: repeat(2, 1fr); }
  .stat-cell { border-bottom: 1px solid rgba(255,255,255,0.07); }
  .footer-top { padding: 2.5rem 2rem; grid-template-columns: 1fr; gap: 1.5rem; }
  .footer-bottom { padding: 1.1rem 2rem; }
}
@media (max-width: 768px) {
  .topbar { display: none; }
  .nav-links > li > a { padding: 0 0.85rem; font-size: 0.75rem; }
  .stats-inner { grid-template-columns: 1fr 1fr; }
  .footer-bottom { flex-direction: column; gap: 0.8rem; text-align: center; }
}
@media (max-width: 540px) {
  .nav-links { display: none; }
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}