:root{
  --bg:#0b0f1a;
  --card:#121a2a;
  --text:#e8eefc;
  --muted:#a9b3cc;
  --line:rgba(255,255,255,.08);
  --accent:#6ea8ff;
  --accent2:#9b7bff;
}

*{ box-sizing:border-box; }
html,body{ margin:0; padding:0; font-family:system-ui,-apple-system,Segoe UI,Roboto,Apple SD Gothic Neo,Noto Sans KR,sans-serif; background:linear-gradient(180deg,#070a12, var(--bg)); color:var(--text); }
a{ color:var(--accent); text-decoration:none; }
a:hover{ text-decoration:underline; }

.container{ max-width:980px; margin:0 auto; padding:24px 16px; }
.header{
  position:sticky; top:0; z-index:20;
  backdrop-filter: blur(10px);
  background:rgba(7,10,18,.7);
  border-bottom:1px solid var(--line);
}
.nav{ display:flex; gap:14px; align-items:center; justify-content:space-between; padding:14px 16px; max-width:980px; margin:0 auto; }
.brand{ display:flex; gap:10px; align-items:center; font-weight:800; letter-spacing:-.2px; }
.badge{ font-size:12px; padding:3px 8px; border:1px solid var(--line); border-radius:999px; color:var(--muted); }
.links{ display:flex; gap:12px; flex-wrap:wrap; justify-content:flex-end; }
.links a{ color:var(--text); opacity:.86; }
.links a:hover{ opacity:1; }

.hero{
  padding:18px 0 6px;
}
.card{
  background:linear-gradient(180deg, rgba(255,255,255,.04), rgba(255,255,255,.02));
  border:1px solid var(--line);
  border-radius:16px;
  padding:18px;
  box-shadow:0 12px 30px rgba(0,0,0,.35);
}
.h1{ font-size:28px; margin:0 0 8px; letter-spacing:-.6px; }
.p{ margin:0 0 10px; color:var(--muted); line-height:1.7; }
.h2{ margin:26px 0 10px; font-size:18px; }
.ul{ margin:0; padding-left:18px; color:var(--muted); line-height:1.75; }
.hr{ height:1px; background:var(--line); border:0; margin:18px 0; }

.grid{ display:grid; grid-template-columns:1fr; gap:14px; }
@media (min-width:860px){
  .grid{ grid-template-columns: 1.2fr .8fr; }
}

.small{ font-size:13px; color:var(--muted); }
.kbd{ font-family:ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace; font-size:12px; padding:2px 6px; border:1px solid var(--line); border-radius:6px; background:rgba(255,255,255,.03); }
.footer{
  border-top:1px solid var(--line);
  margin-top:30px;
  padding:18px 16px;
  color:var(--muted);
}
.footer .row{ max-width:980px; margin:0 auto; display:flex; gap:12px; flex-wrap:wrap; justify-content:space-between; align-items:center; }
.footer a{ color:var(--muted); }
.footer a:hover{ color:var(--text); }

.notice{
  border-left:3px solid var(--accent2);
  padding:10px 12px;
  background:rgba(155,123,255,.08);
  border-radius:12px;
  color:var(--text);
}

.ad-slot{
  border:1px dashed rgba(255,255,255,.22);
  border-radius:12px;
  padding:10px 12px;
  color:rgba(255,255,255,.65);
  font-size:13px;
  background:rgba(255,255,255,.03);
  margin:14px 0;
}

.btn{
  display:inline-flex; gap:8px; align-items:center;
  padding:10px 12px;
  border-radius:12px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.04);
  color:var(--text);
}
.btn:hover{ background:rgba(255,255,255,.06); text-decoration:none; }