:root{
  --ink:#0a0e1a;
  --panel:#121826;
  --panel-2:#161f33;
  --line:#242e46;
  --signal:#4fe0c0;
  --pulse:#ff7a50;
  --text:#edf2fa;
  --text-dim:#8d9bb8;
  --radius:14px;
  --wrap:1180px;
}
*{box-sizing:border-box; margin:0; padding:0;}
html{scroll-behavior:smooth;}
body{
  background:var(--ink);
  color:var(--text);
  font-family:'Pretendard', -apple-system, BlinkMacSystemFont, sans-serif;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
@media (prefers-reduced-motion: reduce){
  *{animation-duration:0.01ms !important; animation-iteration-count:1 !important; transition-duration:0.01ms !important;}
}
a{color:inherit; text-decoration:none;}
img{max-width:100%; display:block;}
.wrap{max-width:var(--wrap); margin:0 auto; padding:0 24px;}
.eyebrow{
  font-family:'JetBrains Mono', monospace;
  font-size:12px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--signal);
}
h1,h2,h3{font-family:'Space Grotesk','Pretendard',sans-serif; font-weight:600; letter-spacing:-.01em;}

/* ---------- header ---------- */
header{
  position:fixed; top:0; left:0; right:0; z-index:100;
  background:rgba(10,14,26,.72);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.nav-row{display:flex; align-items:center; justify-content:space-between; height:72px;}
.logo{display:flex; align-items:center; gap:10px; font-family:'Space Grotesk',sans-serif; font-weight:700; font-size:18px;}
.logo-dot{width:9px; height:9px; border-radius:50%; background:var(--signal); box-shadow:0 0 0 4px rgba(79,224,192,.15);}
nav ul{display:flex; gap:34px; list-style:none;}
nav a{font-size:14.5px; color:var(--text-dim); transition:color .2s;}
nav a:hover, nav a:focus-visible, nav a.active{color:var(--text);}
.nav-cta{
  font-family:'JetBrains Mono',monospace; font-size:13px;
  border:1px solid var(--line); padding:9px 16px; border-radius:999px;
  color:var(--text); white-space:nowrap;
  transition:border-color .2s, background .2s;
}
.nav-cta:hover{border-color:var(--signal); background:rgba(79,224,192,.08);}

/* AI솔루션 — 강조 내비게이션 항목 */
nav a.nav-featured{
  position:relative; color:var(--signal) !important; font-weight:600;
  padding:6px 12px; border:1px solid rgba(79,224,192,.35); border-radius:999px;
  background:rgba(79,224,192,.08);
}
nav a.nav-featured:hover{background:rgba(79,224,192,.16); border-color:var(--signal);}
.menu-btn{
  display:none; background:none; border:1px solid var(--line); border-radius:8px;
  width:40px; height:40px; align-items:center; justify-content:center;
  color:var(--text); font-size:18px; cursor:pointer; flex-shrink:0;
}
.nav-cta-mobile{display:none;}

/* ---------- page hero (interior pages) ---------- */
.page-hero{padding:168px 0 56px; border-bottom:1px solid var(--line);}
.page-hero .crumb{font-family:'JetBrains Mono',monospace; font-size:12.5px; color:var(--text-dim); margin-bottom:16px;}
.page-hero .crumb a:hover{color:var(--text);}
.page-hero h1{font-size:clamp(28px,4vw,42px); line-height:1.25;}
.page-hero p.lead{margin-top:16px; color:var(--text-dim); font-size:16px; max-width:60ch;}

/* ---------- hero (home) ---------- */
.hero{position:relative; overflow:hidden; padding:168px 0 96px; border-bottom:1px solid var(--line);}
.hero-grid{display:grid; grid-template-columns:1.05fr .95fr; gap:48px; align-items:center;}
.hero h1{font-size:clamp(32px,4.4vw,54px); line-height:1.22; white-space:pre-line;}
.hero h1 .accent{color:var(--signal);}
.hero p.lead{margin-top:22px; font-size:17px; color:var(--text-dim); max-width:46ch;}
.hero-cta{display:flex; gap:12px; margin-top:34px; flex-wrap:wrap;}
.btn{display:inline-flex; align-items:center; gap:8px; padding:13px 22px; border-radius:10px; font-size:14.5px; font-weight:600; transition:transform .15s ease, box-shadow .15s ease;}
.btn-primary{background:var(--signal); color:#052420;}
.btn-primary:hover{transform:translateY(-1px); box-shadow:0 8px 24px rgba(79,224,192,.25);}
.btn-ghost{border:1px solid var(--line); color:var(--text);}
.btn-ghost:hover{border-color:var(--text-dim);}
.stat-row{display:flex; gap:28px; margin-top:44px; flex-wrap:wrap;}
.stat b{display:block; font-family:'Space Grotesk',sans-serif; font-size:22px;}
.stat span{font-size:12.5px; color:var(--text-dim);}

/* network diagram */
.netviz{position:relative; aspect-ratio:1/1; max-width:460px; margin:0 auto;}
.netviz svg{width:100%; height:100%; overflow:visible;}
.netviz .line{stroke:var(--line); stroke-width:1.4; fill:none;}
.netviz .pulse{stroke:var(--signal); stroke-width:1.6; fill:none; stroke-dasharray:6 220; opacity:.9; animation:travel 3.4s linear infinite;}
.netviz .pulse.d2{animation-delay:.8s; stroke:var(--pulse);}
.netviz .pulse.d3{animation-delay:1.7s;}
.netviz .pulse.d4{animation-delay:2.4s; stroke:var(--pulse);}
@keyframes travel{ to{ stroke-dashoffset:-226; } }
.netviz .hub{fill:var(--panel-2); stroke:var(--signal); stroke-width:1.6;}
.netviz .node{fill:var(--panel-2); stroke:var(--line); stroke-width:1.4;}
.netviz text{font-family:'JetBrains Mono',monospace; fill:var(--text-dim); font-size:9.5px;}
.netviz .hub-text{fill:var(--text); font-size:11px; font-weight:600;}

/* ---------- section shell ---------- */
section{padding:96px 0;}
section.tight{padding:64px 0;}
.section-head{max-width:640px; margin-bottom:52px;}
.section-head h2{font-size:clamp(24px,3vw,34px); margin-top:12px;}
.section-head p{margin-top:14px; color:var(--text-dim); font-size:15.5px;}

/* ---------- channels (services) ---------- */
.channel-grid{display:grid; grid-template-columns:repeat(2,1fr); gap:20px;}
.channel{background:var(--panel); border:1px solid var(--line); border-radius:var(--radius); padding:30px; transition:border-color .2s, transform .2s;}
.channel:hover{border-color:#334065; transform:translateY(-2px);}
.channel-top{display:flex; justify-content:space-between; align-items:baseline; margin-bottom:14px;}
.channel-top .code{font-family:'JetBrains Mono',monospace; font-size:12px; color:var(--signal);}
.channel h3{font-size:19px;}
.channel p{color:var(--text-dim); font-size:14px; margin:10px 0 20px; max-width:46ch;}
.chip-row{display:flex; flex-wrap:wrap; gap:8px;}
.chip{font-size:12.5px; padding:7px 12px; border-radius:999px; border:1px solid var(--line); color:var(--text-dim); transition:border-color .2s, color .2s;}
.chip:hover{border-color:var(--signal); color:var(--text);}

/* ---------- service cards (solutions.php grid) ---------- */
.service-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:18px;}
.service-card{
  background:var(--panel); border:1px solid var(--line); border-radius:var(--radius);
  overflow:hidden; transition:border-color .2s, transform .2s;
}
.service-card:hover{border-color:#334065; transform:translateY(-2px);}
.service-card .thumb{aspect-ratio:16/10; background:var(--panel-2); overflow:hidden; border-bottom:1px solid var(--line);}
.service-card .thumb img{width:100%; height:100%; object-fit:cover;}
.service-card .body{padding:20px;}
.service-card .cat{font-family:'JetBrains Mono',monospace; font-size:11px; color:var(--signal);}
.service-card h3{font-size:16.5px; margin:8px 0 8px;}
.service-card p{font-size:13px; color:var(--text-dim); display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical; overflow:hidden;}

/* ---------- service detail page ---------- */
.service-detail{display:grid; grid-template-columns:1fr 1fr; gap:48px; align-items:start;}
.service-detail .figure{border:1px solid var(--line); border-radius:var(--radius); overflow:hidden; background:var(--panel);}
.service-detail .figure img{width:100%;}
.service-detail .cat{font-family:'JetBrains Mono',monospace; font-size:12px; color:var(--signal);}
.service-detail h1{font-size:clamp(26px,3.4vw,38px); margin:12px 0 20px;}
.service-detail p{color:var(--text-dim); font-size:15.5px; margin-bottom:14px; white-space:pre-line;}
.service-pager{display:flex; justify-content:space-between; margin-top:56px; padding-top:24px; border-top:1px solid var(--line); font-size:14px;}
.service-pager a{color:var(--text-dim); transition:color .2s;}
.service-pager a:hover{color:var(--signal);}

/* ---------- about ---------- */
.about{background:var(--panel); border:1px solid var(--line); border-radius:20px; padding:56px; display:grid; grid-template-columns:1fr 1fr; gap:40px; align-items:center;}
.about h2{font-size:clamp(22px,2.8vw,30px); margin:12px 0 18px; line-height:1.3;}
.about p{color:var(--text-dim); font-size:15px; white-space:pre-line;}
.about-figure{border:1px solid var(--line); border-radius:14px; padding:26px; font-family:'JetBrains Mono',monospace; font-size:12.5px; color:var(--text-dim); background:linear-gradient(160deg, rgba(79,224,192,.06), transparent 60%);}
.about-figure .row{display:flex; justify-content:space-between; padding:10px 0; border-bottom:1px dashed var(--line);}
.about-figure .row:last-child{border-bottom:0;}
.about-figure b{color:var(--text); font-weight:500;}
.about-media{display:grid; grid-template-columns:1fr 1fr; gap:16px; margin-top:56px;}
.about-media figure{border:1px solid var(--line); border-radius:var(--radius); overflow:hidden; background:var(--panel);}
.about-media figcaption{padding:14px 18px; font-size:12.5px; color:var(--text-dim); border-top:1px solid var(--line);}

/* ---------- partners ---------- */
.partner-strip{display:grid; grid-template-columns:repeat(4,1fr); gap:1px; background:var(--line); border:1px solid var(--line); border-radius:var(--radius); overflow:hidden;}
.partner-strip span{background:var(--panel); padding:26px 12px; text-align:center; font-family:'Space Grotesk',sans-serif; font-size:14.5px; color:var(--text-dim); transition:color .2s, background .2s;}
.partner-strip span:hover{color:var(--text); background:var(--panel-2);}

.partner-grid{display:grid; grid-template-columns:repeat(4,1fr); gap:18px;}
.partner-card{background:var(--panel); border:1px solid var(--line); border-radius:var(--radius); overflow:hidden; transition:border-color .2s, transform .2s;}
.partner-card:hover{border-color:#334065; transform:translateY(-2px);}
.partner-card .thumb{aspect-ratio:3/2; background:#ffffff; overflow:hidden; display:flex; align-items:center; justify-content:center; padding:18px;}
.partner-card .thumb img{width:100%; height:100%; object-fit:contain;}
.partner-card .name{padding:14px 16px; font-size:14px; border-top:1px solid var(--line);}

/* ---------- notice list ---------- */
.notice-table{width:100%; border-collapse:collapse; border:1px solid var(--line); border-radius:var(--radius); overflow:hidden;}
.notice-table thead th{
  text-align:left; font-family:'JetBrains Mono',monospace; font-size:11.5px; color:var(--text-dim);
  text-transform:uppercase; letter-spacing:.06em; padding:14px 18px; background:var(--panel-2); border-bottom:1px solid var(--line);
}
.notice-table tbody td{padding:18px; border-bottom:1px solid var(--line); font-size:14.5px; background:var(--panel);}
.notice-table tbody tr:last-child td{border-bottom:0;}
.notice-table td.title a{transition:color .2s;}
.notice-table td.title a:hover{color:var(--signal);}
.notice-table td.meta{color:var(--text-dim); font-size:13px; white-space:nowrap;}

/* ---------- contact ---------- */
.contact-grid{display:grid; grid-template-columns:1fr 1fr; gap:24px;}
.contact-card{background:var(--panel); border:1px solid var(--line); border-radius:var(--radius); padding:32px;}
.contact-card .eyebrow{margin-bottom:10px;}
.contact-card h3{font-size:19px; margin-bottom:12px;}
.contact-card p{color:var(--text-dim); font-size:14.5px; margin-bottom:20px;}
.contact-card .value{font-family:'JetBrains Mono',monospace; font-size:20px; color:var(--text); margin-bottom:22px;}

/* ---------- AI솔루션 featured banner (home) ---------- */
.ai-feature{
  position:relative; overflow:hidden;
  border:1px solid rgba(79,224,192,.35); border-radius:22px;
  padding:52px; background:
    radial-gradient(circle at 85% 0%, rgba(79,224,192,.14), transparent 55%),
    var(--panel);
  display:grid; grid-template-columns:1.1fr .9fr; gap:40px; align-items:center;
}
.ai-feature .tag{
  display:inline-flex; align-items:center; gap:8px;
  font-family:'JetBrains Mono',monospace; font-size:11.5px; letter-spacing:.08em;
  color:#052420; background:var(--signal); padding:5px 12px; border-radius:999px; margin-bottom:16px;
}
.ai-feature h2{font-size:clamp(24px,3.2vw,36px); line-height:1.3;}
.ai-feature h2 b{color:var(--signal);}
.ai-feature p{color:var(--text-dim); font-size:15.5px; margin:16px 0 26px; white-space:pre-line;}
.ai-feature .partner-badge{font-family:'JetBrains Mono',monospace; font-size:11.5px; color:var(--text-dim); margin-top:20px;}

/* AI솔루션 대시보드 미리보기 카드 */
.ai-dash{border:1px solid var(--line); border-radius:16px; background:var(--panel-2); padding:22px;}
.ai-dash .ai-dash-head{display:flex; justify-content:space-between; align-items:center; margin-bottom:16px;}
.ai-dash .ai-dash-head span{font-family:'JetBrains Mono',monospace; font-size:11px; color:var(--text-dim);}
.ai-stat-grid{display:grid; grid-template-columns:repeat(2,1fr); gap:10px;}
.ai-stat{border:1px solid var(--line); border-radius:10px; padding:14px; background:var(--panel);}
.ai-stat .l{font-size:11.5px; color:var(--text-dim);}
.ai-stat .v{font-family:'Space Grotesk',sans-serif; font-size:20px; margin-top:6px;}
.ai-stat .v small{font-size:12px; color:var(--text-dim); font-weight:400;}
.ai-stat .d{font-size:11px; color:var(--signal); margin-top:4px;}
.ai-dash-badge{
  display:flex; align-items:center; gap:10px; margin-top:14px;
  border:1px solid rgba(79,224,192,.35); background:rgba(79,224,192,.08);
  border-radius:10px; padding:12px 14px;
}
.ai-dash-badge .dot{width:22px; height:22px; border-radius:50%; background:var(--signal); display:flex; align-items:center; justify-content:center; color:#052420; font-size:13px; flex-shrink:0;}
.ai-dash-badge b{font-family:'Space Grotesk',sans-serif; font-size:15px;}
.ai-dash-badge span{font-size:12px; color:var(--text-dim); display:block;}

/* 비교 테이블 */
.compare-table{width:100%; border-collapse:collapse; border:1px solid var(--line); border-radius:var(--radius); overflow:hidden;}
.compare-table th, .compare-table td{padding:16px 18px; border-bottom:1px solid var(--line); font-size:14px; text-align:left;}
.compare-table thead th{background:var(--panel-2); font-family:'JetBrains Mono',monospace; font-size:11.5px; color:var(--text-dim); text-transform:uppercase; letter-spacing:.06em;}
.compare-table thead th.win{color:var(--signal);}
.compare-table tbody th{background:var(--panel); font-weight:600; width:160px;}
.compare-table tbody td{background:var(--panel); color:var(--text-dim);}
.compare-table tbody td.win{color:var(--text); font-weight:500;}
.compare-table tbody tr:last-child th, .compare-table tbody tr:last-child td{border-bottom:0;}

/* 시나리오 카드 (데모) */
.scenario-grid{display:grid; grid-template-columns:repeat(5,1fr); gap:14px;}
.scenario-card{
  border:1px solid var(--line); border-radius:var(--radius); padding:22px 14px; text-align:center;
  background:var(--panel); transition:border-color .2s, transform .2s;
}
.scenario-card.active{border-color:var(--signal); background:rgba(79,224,192,.08);}
.scenario-card:hover{transform:translateY(-2px); border-color:#334065;}
.scenario-card .icon{width:40px; height:40px; margin:0 auto 12px; border-radius:50%; background:var(--panel-2); display:flex; align-items:center; justify-content:center; color:var(--signal);}
.scenario-card span{font-size:13.5px;}

.demo-panel{display:grid; grid-template-columns:1fr; gap:24px; max-width:520px; border:1px solid var(--line); border-radius:var(--radius); padding:28px; background:var(--panel);}
.demo-panel h3{font-size:18px; margin-bottom:6px;}
.demo-panel p{color:var(--text-dim); font-size:13.5px; margin-bottom:20px;}
.demo-field{margin-bottom:14px;}
.demo-field label{display:block; font-size:12.5px; color:var(--text-dim); margin-bottom:6px;}
.demo-field .input{border:1px solid var(--line); border-radius:8px; padding:12px 14px; font-size:14px; background:var(--panel-2); color:var(--text-dim); font-family:'JetBrains Mono',monospace;}

/* ---------- cta band ---------- */
.cta-band{text-align:center; border:1px solid var(--line); border-radius:20px; padding:64px 32px; background:radial-gradient(circle at 50% 0%, rgba(79,224,192,.08), transparent 60%);}
.cta-band h2{font-size:clamp(24px,3vw,32px);}
.cta-band p{color:var(--text-dim); margin:14px 0 30px;}

/* ---------- footer ---------- */
footer{border-top:1px solid var(--line); padding:52px 0 40px;}
.foot-grid{display:flex; justify-content:space-between; gap:32px; flex-wrap:wrap;}
.foot-info{color:var(--text-dim); font-size:13px; line-height:2;}
.foot-info b{color:var(--text); font-weight:600;}
.foot-links{display:flex; gap:18px; font-size:13.5px; color:var(--text-dim);}
.foot-links a:hover{color:var(--text);}
.copyright{margin-top:28px; font-size:12px; color:#5c6a89; font-family:'JetBrains Mono',monospace;}

/* ---------- responsive ---------- */
@media (max-width:900px){
  .hero-grid{grid-template-columns:1fr;}
  .netviz{margin-top:20px;}
  .channel-grid{grid-template-columns:1fr;}
  .service-grid{grid-template-columns:repeat(2,1fr);}
  .about{grid-template-columns:1fr; padding:36px;}
  .about-media{grid-template-columns:1fr;}
  .partner-strip{grid-template-columns:repeat(2,1fr);}
  .partner-grid{grid-template-columns:repeat(2,1fr);}
  .service-detail{grid-template-columns:1fr;}
  .contact-grid{grid-template-columns:1fr;}
  .ai-feature{grid-template-columns:1fr; padding:32px;}
  .ai-stat-grid{grid-template-columns:repeat(2,1fr);}
  .scenario-grid{grid-template-columns:repeat(3,1fr);}
  .compare-table{font-size:13px;}
}
@media (max-width:520px){
  .scenario-grid{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:720px){
  .nav-cta-desktop{display:none;}
  .menu-btn{display:flex;}

  nav#siteNav{
    position:absolute; top:100%; left:0; right:0;
    max-height:0; overflow:hidden;
    background:rgba(10,14,26,.98); backdrop-filter:blur(14px);
    border-bottom:1px solid var(--line);
    transition:max-height .25s ease;
  }
  nav#siteNav.open{max-height:520px;}
  nav#siteNav ul{flex-direction:column; gap:0; padding:4px 24px 20px; list-style:none;}
  nav#siteNav ul li{border-top:1px solid var(--line);}
  nav#siteNav ul li:first-child{border-top:0;}
  nav#siteNav a{display:block; padding:16px 4px; font-size:15px;}
  nav#siteNav a.nav-featured{display:inline-block; padding:8px 14px;}
  .nav-cta-mobile{display:block; padding:14px 4px 4px;}
  .nav-cta-mobile .nav-cta{display:flex; width:100%; justify-content:center;}

  .hero{padding:128px 0 64px;}
  .page-hero{padding:128px 0 40px;}
}
@media (max-width:640px){
  .table-scroll{overflow-x:auto; -webkit-overflow-scrolling:touch; margin:0 -24px; padding:0 24px;}
  .table-scroll table{min-width:560px;}
  .cta-band{padding:40px 22px;}
  .ai-feature{padding:24px;}
  .service-pager{flex-direction:column; gap:14px; align-items:flex-start;}
  .partner-strip{grid-template-columns:repeat(2,1fr);}
  .partner-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:420px){
  .service-grid{grid-template-columns:1fr;}
  .partner-grid{grid-template-columns:1fr;}
  .stat-row{gap:20px;}
}

/* scroll reveal */
.reveal{opacity:0; transform:translateY(16px); transition:opacity .6s ease, transform .6s ease;}
.reveal.in{opacity:1; transform:none;}