/* ============ BASE / VARIABLES / RESET ============ */
:root {
  --navy: #0a1628;
  --navy-light: #132038;
  --blue: #1e6dd4;
  --blue-light: #3a8ef5;
  --blue-pale: #e8f1fd;
  --sky: #4fc3f7;
  --white: #ffffff;
  --gray-50: #f8f9fc;
  --gray-100: #eef1f6;
  --gray-200: #d8dde6;
  --gray-400: #8e99ab;
  --gray-600: #5a6577;
  --gray-800: #2d3748;
  --accent: #ff6b35;
  --accent-warm: #ff8c5a;
  --font-ko: 'Noto Sans KR', sans-serif;
  --font-en: 'Plus Jakarta Sans', sans-serif;
  --shadow-sm: 0 1px 3px rgba(10,22,40,0.06);
  --shadow-md: 0 4px 20px rgba(10,22,40,0.08);
  --shadow-lg: 0 12px 40px rgba(10,22,40,0.12);
  --shadow-xl: 0 20px 60px rgba(10,22,40,0.16);
  --radius: 12px;
  --radius-lg: 20px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: var(--font-ko);
  color: var(--gray-800);
  background: var(--white);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
/* smooth scroll for anchor links */
html { scroll-behavior: smooth; }

/* ============ COMMON SECTION ============ */
.section-label {
  font-size: 12px; font-weight: 700; text-transform: uppercase;
  letter-spacing: 2px; color: var(--blue); margin-bottom: 12px;
}
.section-title {
  font-size: clamp(28px, 3.5vw, 40px);
  font-weight: 800; color: var(--navy);
  margin-bottom: 16px; letter-spacing: -0.5px; word-break: keep-all;
}
.section-desc {
  font-size: 16px; color: var(--gray-600);
  max-width: 560px; line-height: 1.7;
  margin-bottom: 56px; word-break: keep-all;
}


/* ============ FOOTER ============ */
.site-footer {
  background: var(--navy);
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 28px 40px 0;
}
.site-footer .footer-inner {
  max-width: 1320px; margin: 0 auto;
}
.site-footer .footer-top {
  display: flex; justify-content: space-between; gap: 40px;
  padding-bottom: 20px;
}
.site-footer .footer-company { flex: 0 0 520px; }
.site-footer .footer-logo { margin-bottom: 14px; }
.site-footer .footer-meta {
  font-size: 12px; color: rgba(255,255,255,0.5); line-height: 1.7;
  margin-bottom: 6px;
}
.site-footer .footer-meta span { margin-right: 14px; }
.site-footer .footer-meta strong { color: rgba(255,255,255,0.7); font-weight: 600; }
.site-footer .footer-addr {
  font-size: 12px; color: rgba(255,255,255,0.45); line-height: 1.7;
  margin-bottom: 6px;
}
.site-footer .footer-addr span { display: block; }
.site-footer .footer-addr strong { color: rgba(255,255,255,0.6); font-weight: 600; margin-right: 6px; }
.site-footer .footer-contact {
  font-size: 12px; color: rgba(255,255,255,0.5); line-height: 1.7;
}
.site-footer .footer-contact span { margin-right: 20px; }
.site-footer .footer-sitemap {
  display: flex; gap: 36px; flex: 1; justify-content: flex-end;
}
.site-footer .footer-col-title {
  font-size: 13px; font-weight: 700; color: rgba(255,255,255,0.85);
  margin-bottom: 8px;
}
.site-footer .footer-links {
  list-style: none; padding: 0; margin: 0;
}
.site-footer .footer-links li { margin-bottom: 0; line-height: 1.7; }
.site-footer .footer-links a {
  font-size: 12px; color: rgba(255,255,255,0.45);
  text-decoration: none; transition: color 0.2s;
}
.site-footer .footer-links a:hover { color: rgba(255,255,255,0.85); }
.site-footer .footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 14px 0;
  display: flex; align-items: center; justify-content: space-between;
}
.site-footer .footer-copy {
  font-size: 11px; color: rgba(255,255,255,0.25);
  font-family: var(--font-en);
}
.site-footer .footer-related-select {
  appearance: none; -webkit-appearance: none;
  background: transparent; border: 1px solid rgba(255,255,255,0.15);
  border-radius: 4px; padding: 6px 32px 6px 12px;
  font-size: 12px; color: rgba(255,255,255,0.6);
  font-family: var(--font-en); cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M0 0l5 6 5-6z' fill='rgba(255,255,255,0.4)'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 10px center;
}
.site-footer .footer-related-select option {
  background: var(--navy); color: #fff;
}
@media (max-width: 768px) {
  .site-footer { padding: 24px 20px 0; }
  .site-footer .footer-top { flex-direction: column; gap: 24px; }
  .site-footer .footer-company { flex: none; }
  .site-footer .footer-sitemap { flex-wrap: wrap; gap: 24px; justify-content: flex-start; }
}

/* ============ ANIMATIONS ============ */
.fade-up { opacity: 0; transform: translateY(30px); transition: opacity 0.7s, transform 0.7s; }
.fade-up.visible { opacity: 1; transform: translateY(0); }
.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }
.delay-4 { transition-delay: 0.4s; }


/* ============ PAGE UTILITY ============ */
.page { display: none; }
.page.active { display: block; }
.nav-item.touch-open .mega-menu { opacity: 1!important; visibility: visible!important; transform: translateX(-50%) translateY(0)!important; }