@import url('https://fonts.googleapis.com/css2?family=Nanum+Gothic:wght@400;700;800&display=swap');

:root {
  --primary: #0b4f8a;
  --primary-dark: #083a66;
  --accent: #2f7fc1;
  --bg: #f4f7fb;
  --text: #1f2a37;
  --muted: #5b6775;
  --white: #ffffff;
  --border: #d8e2ef;
}
*{box-sizing:border-box}
body{margin:0;font-family:"Nanum Gothic","Malgun Gothic","Apple SD Gothic Neo",sans-serif;color:var(--text);background:var(--bg);line-height:1.6;letter-spacing:0}
a{text-decoration:none;color:inherit}
h1,h2,h3,h4,.menu-item>a{font-family:"Nanum Gothic","Malgun Gothic","Apple SD Gothic Neo",sans-serif;letter-spacing:0}
.container{width:min(1100px,92%);margin:0 auto}
.site-header{background:var(--white);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:10}
.nav-wrap{display:flex;align-items:center;justify-content:flex-start;padding:14px 0}
.logo{display:flex;align-items:center;min-width:0;flex:0 0 auto;margin-right:26px}
.logo img{height:50px;width:auto;max-width:320px;display:block}
.nav-wrap{gap:0}
.nav{flex-shrink:0;margin-left:18px}
.nav-toggle{display:none !important;background:#e8f1fb;border:1px solid var(--border);border-radius:8px;padding:6px 10px;color:var(--primary);position:relative;z-index:2001;flex:0 0 auto}
.nav .menu{display:flex;gap:12px;list-style:none;margin:0;padding:0;align-items:center}
.menu-item{position:relative}
.menu-item>a{display:block;padding:8px 10px;border-radius:8px;color:var(--muted);font-weight:700}
.menu-item>a.active,.menu-item>a:hover{background:#e8f1fb;color:var(--primary)}
.submenu{display:none;position:absolute;top:100%;left:0;min-width:170px;background:#fff;border:1px solid var(--border);border-radius:10px;box-shadow:0 10px 24px rgba(9,40,71,.12);padding:8px;list-style:none;margin:0;z-index:30}
.submenu a{display:block;padding:8px 10px;border-radius:8px;color:var(--muted);white-space:nowrap}
.submenu a:hover{background:#e8f1fb;color:var(--primary)}
.has-sub:hover>.submenu,.has-sub:focus-within>.submenu,.has-sub.open>.submenu{display:block}

/* desktop mega menu */
@media (min-width: 901px){
  .site-header{overflow:visible}
  .nav .menu{gap:26px;flex-wrap:nowrap}
  .menu-item>a{padding:8px 4px;font-size:.97rem}
  .site-header .menu > .has-sub > .submenu{display:none !important}
  .mega-menu{display:none;position:absolute;left:0;right:0;top:100%;background:#fff;border-top:1px solid var(--border);border-bottom:1px solid var(--border);box-shadow:0 12px 28px rgba(9,40,71,.12);z-index:40}
  .site-header.mega-open .mega-menu{display:block}
  .mega-menu-inner{display:grid;grid-template-columns:240px 1fr;gap:18px;padding:0}
  .mega-brand{background:#f3f6fb;border-right:1px solid var(--border);display:flex;flex-direction:column;justify-content:center;align-items:center;min-height:240px;padding:18px}
  .mega-brand img{max-width:210px;height:auto;display:block;margin-bottom:12px}
  .mega-brand .name{font-weight:800;color:var(--primary-dark);font-size:1.08rem;text-align:center;line-height:1.4}
  .mega-cols{display:grid;grid-template-columns:repeat(7,max-content);column-gap:20px;row-gap:12px;justify-content:start;padding:18px 18px 18px 75px}
  .mega-col{padding:0 4px}
  .mega-col:first-child{padding-left:35px}
  .mega-col:nth-child(2){margin-left:10px}
  .mega-col:nth-child(3){margin-left:7px}
  .mega-col:nth-child(4){margin-left:-5px}
  .mega-col:nth-child(5){margin-left:6px}
  .mega-col:nth-child(6){margin-left:9px}
  .mega-col:nth-child(7){margin-left:4px}
  .mega-col h4{margin:0 0 8px 0;color:#1f2a37;font-size:1.02rem}
  .mega-col h4 a{display:inline-block;white-space:nowrap}
  .mega-col a{display:block;padding:5px 0;color:#4b5563;font-size:.95rem}
  .mega-col:last-child h4 a,.mega-col:last-child a{font-size:.9rem}
  .mega-col a:hover{color:var(--primary)}
  .nav .menu > .menu-item:last-child > a{font-size:.92rem}
}
.hero{background:linear-gradient(120deg,var(--primary-dark),var(--primary));color:#fff;padding:64px 0}
.hero h1{margin:0 0 10px;font-size:2rem}
.hero p{margin:0;opacity:.95}
.section{padding:48px 0}
.section h2{margin:0 0 14px;font-size:1.45rem;color:var(--primary-dark)}
.grid{display:grid;gap:18px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
.card{background:var(--white);border:1px solid var(--border);border-radius:12px;padding:20px}
.card h3{margin:0 0 8px;font-size:1.08rem}
.card p{margin:0;color:var(--muted)}
.news-list{list-style:none;padding:0;margin:0}
.news-list li{background:var(--white);border:1px solid var(--border);border-radius:10px;padding:14px 16px;margin-bottom:10px;display:flex;justify-content:space-between;gap:12px}
.news-list span{color:var(--muted);white-space:nowrap}
.footer{background:#0f2237;color:#d7e3f1;padding:28px 0;margin-top:40px}
.footer-inner{display:flex;align-items:center;gap:16px}
.footer-logo{width:84px;filter:grayscale(100%) brightness(1.45);opacity:.9;flex:0 0 auto}
.footer-text small{display:block;color:#a9bbcf}
.footer small{display:block;color:#a9bbcf}
@media (max-width:640px){.footer-inner{flex-direction:column;align-items:flex-start}.footer-logo{width:72px}}
.kv{display:flex;gap:14px;flex-wrap:wrap}
.kv .badge{background:#eaf3fc;color:var(--primary);padding:6px 10px;border-radius:999px;font-size:.9rem}
.table{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--border)}
.table th,.table td{border-bottom:1px solid var(--border);padding:12px;text-align:left}
.table th{background:#eef4fb}
@media (max-width: 900px){.grid-3{grid-template-columns:repeat(2,1fr)}}
@media (max-width: 640px){
  .hero{padding:46px 0}
  .hero h1{font-size:1.55rem}
  .grid-3,.grid-2{grid-template-columns:1fr}
  .news-list li{flex-direction:column}
  .logo img{height:34px;max-width:360px}
}

@media (max-width: 900px){.nav-toggle{display:block !important}.nav{display:none;position:absolute;top:62px;left:0;right:0;background:#fff;border-top:1px solid var(--border);padding:10px 4%;max-height:calc(100vh - 62px);overflow-y:auto;-webkit-overflow-scrolling:touch;z-index:1000;}.nav.open{display:block}.nav .menu{flex-direction:column;align-items:stretch;gap:6px;padding-bottom:24px}.submenu{position:static;display:block;border:none;box-shadow:none;padding:0 0 0 14px;margin:0}.logo img{height:36px;max-width:420px}}

/* top hero image update */
.hero{
  position:relative;
  background:url('../images/hero-city-building.jpg') center/cover no-repeat !important;
  color:#fff !important;
  padding:92px 0 !important;
  min-height:360px;
}
.hero::before{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(120deg, rgba(8,58,102,.68), rgba(11,79,138,.50));
}
.hero .container{position:relative;z-index:1;}


/* submenu-grid-note */
.hero{position:relative;background:url("../images/hero-city-building.jpg") center/cover no-repeat !important;color:#fff;padding:92px 0 !important;min-height:360px;}
.hero::before{content:"";position:absolute;inset:0;background:linear-gradient(120deg, rgba(8,58,102,.68), rgba(11,79,138,.50));}
.hero .container{position:relative;z-index:1;}
.submenu{min-width:200px}