:root{
  --bg:#0a0f1c; --fg:#e6ecff; --muted:#9bb0ff; --card:#0f1630aa; --accent1:#7f7fff; --accent2:#00e3ff; --accent3:#7cffd4;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;background:radial-gradient(1000px 600px at 10% -10%,rgba(0,227,255,.25),transparent),linear-gradient(120deg,#06102a,#0a0f1c 50%,#0c1022);color:var(--fg);font:16px/1.6 system-ui,Segoe UI,Roboto,Inter,Arial}
.container{max-width:1100px;margin:0 auto;padding:24px}
a{color:var(--accent3);text-decoration:none}
a:hover{text-decoration:underline}
.site-header{position:sticky;top:0;backdrop-filter:blur(12px);z-index:10;border-bottom:1px solid #1d2340}
.glass{background:linear-gradient(180deg,rgba(255,255,255,.05),rgba(255,255,255,0))}
.nav{display:flex;align-items:center;justify-content:space-between;gap:16px}
.brand{display:flex;align-items:center;gap:12px;font-size:20px}
.logo{width:32px;height:32px;border-radius:10px;display:inline-grid;place-items:center;background:conic-gradient(from 0deg,var(--accent1),var(--accent2),var(--accent3),var(--accent1));color:#081223;font-weight:800}
.hero{padding:56px 0;display:grid;gap:16px}
.hero h1{font-size:40px;margin:0}
.hero p.lead{color:var(--muted);font-size:18px;margin:0}
.grid{display:grid;gap:20px}
.grid-3{grid-template-columns:repeat(3,1fr)}
@media(max-width:900px){.grid-3{grid-template-columns:1fr}}
.card{background:var(--card);border:1px solid #1d2340;border-radius:16px;padding:20px;box-shadow:0 10px 30px rgba(0,0,0,.25)}
.card h3{margin-top:0}
.badge{display:inline-block;padding:2px 10px;border-radius:999px;border:1px solid #2a3b8f;background:#0b1636}
.tag{display:inline-block;margin:0 6px 6px 0;padding:6px 10px;border:1px solid #2a3b8f;border-radius:999px}
.table{width:100%;border-collapse:collapse;background:var(--card);border:1px solid #1d2340;border-radius:12px;overflow:hidden}
.table th,.table td{padding:12px;border-bottom:1px solid #1d2340;text-align:left}
.site-footer{margin-top:40px;border-top:1px solid #1d2340;padding:24px 0}
.center{text-align:center}
.small{font-size:12px}
.muted{color:#9bb0ff}
.post-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:20px}
.searchbar{display:flex;gap:10px;align-items:center;margin-bottom:16px}
input[type="search"],select, input[type="text"], input[type="email"], textarea{width:100%;padding:12px;border-radius:12px;border:1px solid #24306b;background:#0b1530;color:var(--fg)}
button, .btn{padding:12px 16px;border-radius:12px;border:1px solid #2a3b8f;background:linear-gradient(180deg,#0e1a44,#0a1437);color:var(--fg);cursor:pointer}
button:hover,.btn:hover{filter:brightness(1.1)}
.toc{position:sticky;top:80px;background:#0b1530;border:1px solid #1d2340;border-radius:12px;padding:12px}
.toc h4{margin:0 0 8px 0}
.lead{color:var(--muted)}
.kbd{padding:2px 6px;border:1px solid #2a3b8f;border-radius:6px;background:#0b1636}
.alert{padding:12px;border:1px solid #2a3b8f;border-radius:12px;background:#0b1636}