:root{
  --bg:#0b0c10; --ink:#e6e8eb; --muted:#9aa5b1; --panel:#16181d; --line:#1e2127; --brand:#5fe3a1; --brandink:#0e1f17;
  --container:min(1100px,92vw);
}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.6 system-ui,-apple-system,Segoe UI,Roboto,sans-serif}
.container{width:var(--container);margin:auto;padding:0 1rem}
.site-header{position:sticky;top:0;z-index:50;background:#111317;border-bottom:1px solid var(--line)}
.site-header .container{display:flex;align-items:center;justify-content:space-between;padding:.8rem 0}
.brand img{height:56px;display:block}
.nav a{color:#e6e8eb;text-decoration:none;margin-left:1rem;opacity:.85}
.nav a:hover,.nav a.active{opacity:1}
.hero{padding:5rem 0;text-align:center;background: radial-gradient(800px 400px at 50% 0%, #151820 0%, transparent 70%), var(--bg)}
.hero h1{font-size:2.4rem;margin:0 0 .6rem}
.hero p{max-width:760px;margin:0 auto 1.5rem;color:var(--muted)}
.btn{display:inline-block;padding:.7rem 1rem;border-radius:999px;border:1px solid var(--line);text-decoration:none;color:var(--ink);background:#0f1216}
.btn:hover{border-color:#2a2f37}
.subscribe-row{display:flex;gap:.7rem;justify-content:center;flex-wrap:wrap}
.pad{padding:2.5rem 0}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:1rem}
.card{background:var(--panel);border:1px solid #20242c;border-radius:12px;padding:1rem}
.card h3{margin-top:0}
.muted{color:var(--muted)}
.sponsor{background:#111317;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:2.5rem 0;margin-top:1rem}
.sponsor .cta{color:#fff}
.site-footer{border-top:1px solid var(--line);margin-top:2rem}
.site-footer .container{padding:1rem 0;color:var(--muted);text-align:center}
.form label{display:block;margin-bottom:.8rem}
.form input,.form textarea{width:100%;padding:.6rem .7rem;border-radius:10px;border:1px solid #2a2f37;background:#0f1216;color:var(--ink)}
.form button{background:var(--brand);color:var(--brandink);border:0;font-weight:700}