:root{
  --bg:#0b0f14;
  --card:#0f1620;
  --text:#e8eef6;
  --muted:#a9b4c2;
  --line:#223041;
  --accent:#6ee7ff;
  --accent2:#8b5cf6;
  --radius:18px;
  --shadow: 0 12px 40px rgba(0,0,0,.35);
  --max: 1080px;
  --font: ui-sans-serif, system-ui, -apple-system, "Apple SD Gothic Neo", "Noto Sans KR", Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji","Segoe UI Emoji";
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;background:linear-gradient(180deg,#07101a 0%, #0b0f14 35%, #070b10 100%);color:var(--text);font-family:var(--font);line-height:1.55}
a{color:inherit;text-decoration:none}
.container{max-width:var(--max);margin:0 auto;padding:0 18px}
.topbar{position:sticky;top:0;z-index:50;background:rgba(11,15,20,.78);backdrop-filter: blur(10px);border-bottom:1px solid rgba(34,48,65,.6)}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 0}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;letter-spacing:.2px}
.brand-dot{width:12px;height:12px;border-radius:50%;background:linear-gradient(135deg,var(--accent),var(--accent2))}
.nav{display:flex;gap:14px;align-items:center}
.nav a{padding:8px 10px;border-radius:10px;color:var(--muted)}
.nav a.active,.nav a:hover{color:var(--text);background:rgba(110,231,255,.08);border:1px solid rgba(110,231,255,.18)}
.menu-btn{display:none}
.hero{padding:44px 0 22px}
.hero-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:18px}
.card{background:linear-gradient(180deg, rgba(15,22,32,.92), rgba(12,17,25,.92));border:1px solid rgba(34,48,65,.85);border-radius:var(--radius);box-shadow:var(--shadow)}
.hero-card{padding:26px}
.kicker{color:var(--accent);font-weight:800;letter-spacing:.25px;text-transform:uppercase;font-size:12px}
h1{margin:10px 0 10px;font-size:34px;line-height:1.15}
.lead{color:var(--muted);font-size:16px;margin:0}
.cta-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 14px;border-radius:12px;border:1px solid rgba(110,231,255,.25);background:rgba(110,231,255,.09);color:var(--text);font-weight:700}
.btn.secondary{border:1px solid rgba(169,180,194,.22);background:rgba(169,180,194,.06);color:var(--muted)}
.btn:hover{transform: translateY(-1px)}
.side{padding:20px}
.badge{display:inline-flex;align-items:center;gap:8px;padding:8px 10px;border-radius:999px;border:1px solid rgba(34,48,65,.85);background:rgba(255,255,255,.03);color:var(--muted);font-weight:600;font-size:13px}
.section{padding:18px 0 44px}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.tile{padding:18px}
h2{margin:0 0 10px;font-size:22px}
h3{margin:0 0 10px;font-size:18px}
p{margin:0 0 10px;color:var(--muted)}
ul{margin:10px 0 0 18px;color:var(--muted)}
.footer{padding:28px 0;border-top:1px solid rgba(34,48,65,.6);color:var(--muted);font-size:13px}
.footer a{color:var(--muted);text-decoration:underline;text-underline-offset:3px}
.table{width:100%;border-collapse:collapse}
.table th,.table td{padding:12px 10px;border-bottom:1px solid rgba(34,48,65,.65);text-align:left;color:var(--muted)}
.table th{color:var(--text);font-weight:800}
.notice-title{color:var(--text);font-weight:800}
.form{display:grid;gap:12px}
.input, textarea{width:100%;padding:12px 12px;border-radius:12px;border:1px solid rgba(34,48,65,.85);background:rgba(255,255,255,.03);color:var(--text);outline:none}
textarea{min-height:140px;resize:vertical}
.small{font-size:13px;color:var(--muted)}
.toast{position:fixed;right:18px;bottom:18px;max-width:340px;padding:14px 14px;border-radius:14px;border:1px solid rgba(34,48,65,.85);background:rgba(15,22,32,.92);box-shadow:var(--shadow);display:none}
.toast.show{display:block}
@media (max-width: 900px){
  .hero-grid{grid-template-columns:1fr}
  .grid3{grid-template-columns:1fr}
}
@media (max-width: 760px){
  .nav{display:none}
  .menu-btn{display:inline-flex;align-items:center;justify-content:center;padding:10px 12px;border-radius:12px;border:1px solid rgba(34,48,65,.85);background:rgba(255,255,255,.03);color:var(--text);font-weight:800}
  .nav.open{display:flex;flex-direction:column;align-items:stretch;padding:10px 0 14px}
  .nav.open a{margin:0 18px}
}