:root{
  --bg:#0b1020;
  --bg2:#0f172a;
  --fg:#e5e7eb;
  --muted:#94a3b8;
  --cta:#38bdf8;
  --accent:#22c55e;
  --card:#111827;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;background:var(--bg);color:var(--fg);}
a{color:var(--cta);text-decoration:none}
a:hover{text-decoration:underline}
.container{max-width:1100px;margin:0 auto;padding:0 20px}
header{position:sticky;top:0;background:rgba(11,16,32,.9);backdrop-filter:blur(6px);border-bottom:1px solid #1f2937;z-index:10}
.nav{display:flex;align-items:center;justify-content:space-between;padding:14px 0}
.nav-left{display:flex;gap:14px;align-items:center}
.nav img{height:34px}
.nav a{margin:0 10px;color:#cbd5e1}
.nav a.active,.nav a:hover{color:#fff}
.burger{display:none;font-size:26px;cursor:pointer}
@media(max-width:860px){
  .nav-links{display:none;position:absolute;top:60px;left:0;right:0;background:var(--bg2);padding:14px;border-bottom:1px solid #1f2937}
  .nav-links a{display:block;padding:10px 6px}
  .burger{display:block}
}
.hero{padding:80px 0;background:linear-gradient(180deg,rgba(34,197,94,.08),transparent)}
.hero h1{font-size:44px;margin:0 0 10px}
.hero p{color:var(--muted);font-size:18px;max-width:800px}
.btn{display:inline-block;background:var(--cta);color:#001926;padding:12px 16px;border-radius:12px;font-weight:700;margin-top:18px}
.btn.secondary{background:transparent;border:1px solid #334155;color:#e2e8f0}
.grid{display:grid;gap:18px}
.cards{grid-template-columns:repeat(3,1fr)}
@media(max-width:960px){.cards{grid-template-columns:1fr 1fr}}
@media(max-width:640px){.cards{grid-template-columns:1fr}}
.card{background:var(--card);border:1px solid #1f2937;border-radius:14px;padding:18px}
.card h3{margin-top:0}
.section{padding:50px 0;border-top:1px solid #1f2937}
.section h2{margin-top:0}
footer{padding:30px 0;border-top:1px solid #1f2937;color:#94a3b8}
.kbd{border:1px solid #334155;border-bottom-width:2px;padding:2px 6px;border-radius:6px;background:#0b1222;color:#cbd5e1}
.tag{display:inline-block;padding:6px 10px;border:1px solid #334155;border-radius:999px;color:#cbd5e1;margin:4px 6px 0 0;font-size:13px}
.list-2col{columns:2;column-gap:28px}
@media(max-width:720px){.list-2col{columns:1}}
.form{display:grid;gap:12px;max-width:560px}
input,textarea{width:100%;padding:12px 14px;border-radius:12px;border:1px solid #334155;background:#0b1222;color:#e5e7eb}
input:focus,textarea:focus{outline:none;border-color:#38bdf8;box-shadow:0 0 0 3px rgba(56,189,248,.15)}
blockquote{margin:0;padding:14px 18px;border-left:3px solid var(--cta);background:#0b1222;color:#cbd5e1;border-radius:8px}
.small{font-size:13px;color:#94a3b8}
.table{width:100%;border-collapse:collapse}
.table th,.table td{border:1px solid #1f2937;padding:10px;text-align:left}
.badge{background:#052a22;color:#34d399;border:1px solid #064e3b;padding:4px 8px;border-radius:999px;font-size:12px}

.hero-img{position:relative}
.hero-img img{width:100%;height:auto;border-radius:14px;border:1px solid #1f2937;box-shadow:0 10px 30px rgba(0,0,0,.25)}
.hero-grid{display:grid;grid-template-columns:1.3fr .7fr;gap:22px;align-items:center}
@media(max-width:900px){.hero-grid{grid-template-columns:1fr}}
.logo-img{height:40px;border-radius:6px}