:root{
  --bg:#0b1220; --panel:#121a2b; --card:#172238; --line:#24324d;
  --text:#eef3ff; --muted:#9aabca; --accent:#3dd6c6; --accent2:#5b8cff; --warn:#ffb454;
  --radius:18px; --shadow:0 18px 50px rgba(0,0,0,.35);
  --font:"Pretendard",system-ui,sans-serif;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;background:linear-gradient(180deg,#071018 0%,#0b1220 40%,#101a2e 100%);color:var(--text);font-family:var(--font);line-height:1.65}
a{color:inherit;text-decoration:none}
img{max-width:100%;height:auto;display:block}
.wrap{width:min(1120px,92%);margin:0 auto}
.site-header{position:sticky;top:0;z-index:20;backdrop-filter:blur(14px);background:rgba(8,14,26,.78);border-bottom:1px solid rgba(255,255,255,.06)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:70px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;letter-spacing:-.02em}
.brand img{border-radius:10px;object-fit:cover}
.nav nav{display:flex;flex-wrap:wrap;gap:8px 14px;align-items:center}
.nav nav a{color:var(--muted);font-size:.95rem}
.nav nav a.is-active,.nav nav a:hover{color:var(--text)}
.hero{padding:54px 0 28px;display:grid;grid-template-columns:1.1fr .9fr;gap:28px;align-items:center}
.hero-copy h1{font-size:clamp(1.8rem,4vw,2.8rem);line-height:1.25;margin:0 0 14px;letter-spacing:-.03em}
.hero-copy .lead{color:var(--muted);font-size:1.05rem}
.kicker{display:inline-flex;gap:8px;align-items:center;padding:6px 12px;border-radius:999px;background:rgba(61,214,198,.12);color:var(--accent);font-weight:700;font-size:.86rem}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin:22px 0}
.stats li{list-style:none;background:rgba(255,255,255,.04);border:1px solid var(--line);border-radius:14px;padding:14px}
.stats strong{display:block;font-size:1.15rem}
.stats span{color:var(--muted);font-size:.84rem}
.actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:8px}
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 18px;border-radius:12px;border:1px solid transparent;font-weight:700}
.btn-main{background:linear-gradient(135deg,var(--accent),#2bb7e0);color:#042028}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--text)}
.hero-visual{border-radius:24px;overflow:hidden;box-shadow:var(--shadow);border:1px solid var(--line);min-height:280px;background:#0a1424}
.hero-visual img{width:100%;height:100%;object-fit:cover}
section{padding:42px 0}
section h2{font-size:1.55rem;margin:0 0 16px;letter-spacing:-.02em}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow)}
.card h3{margin:0 0 8px;font-size:1.08rem}
.card p{margin:0;color:var(--muted)}
.split{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:center}
.split img{border-radius:20px;border:1px solid var(--line)}
.note{color:var(--warn);font-size:.92rem}
.faq details{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:14px 16px;margin-bottom:10px}
.faq summary{cursor:pointer;font-weight:700}
.list{display:grid;gap:12px}
.list a.item{display:block;background:var(--card);border:1px solid var(--line);border-radius:14px;padding:16px 18px}
.list a.item:hover{border-color:var(--accent)}
.list .meta{color:var(--muted);font-size:.86rem;margin-top:6px}
.prose{background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:24px}
.prose h1{margin-top:0}
.form{display:grid;gap:12px;max-width:560px}
.form label{font-size:.9rem;color:var(--muted)}
.form input,.form textarea,.form select{width:100%;padding:12px 14px;border-radius:12px;border:1px solid var(--line);background:#0d1628;color:var(--text)}
.form textarea{min-height:140px;resize:vertical}
.flash{padding:12px 14px;border-radius:12px;margin-bottom:12px}
.flash.ok{background:rgba(61,214,198,.12);color:var(--accent)}
.flash.err{background:rgba(255,100,100,.12);color:#ff8f8f}
.site-footer{border-top:1px solid rgba(255,255,255,.06);padding:36px 0 48px;color:var(--muted);margin-top:20px}
.site-footer .copy{font-size:.84rem}
.table{width:100%;border-collapse:collapse}
.table th,.table td{border-bottom:1px solid var(--line);padding:10px 8px;text-align:left;font-size:.92rem}
.admin-body{background:#0b1220;color:var(--text);font-family:var(--font);margin:0}
.admin-shell{display:grid;grid-template-columns:220px 1fr;min-height:100vh}
.admin-side{background:#0a1322;border-right:1px solid var(--line);padding:20px}
.admin-side a{display:block;padding:10px 12px;border-radius:10px;color:var(--muted);margin-bottom:4px}
.admin-side a:hover,.admin-side a.is-active{background:rgba(91,140,255,.12);color:var(--text)}
.admin-main{padding:24px}
.admin-main .toolbar{display:flex;justify-content:space-between;gap:12px;align-items:center;margin-bottom:16px}
.login-page{min-height:100vh;display:grid;place-items:center;padding:24px}
.login-card{width:min(420px,100%);background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:28px;box-shadow:var(--shadow)}
@media (max-width:900px){
  .hero,.split,.cards,.stats,.admin-shell{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr 1fr}
  .admin-side{display:flex;flex-wrap:wrap;gap:6px}
}