:root{
  --bg:#020617;
  --panel:#0f172a;
  --card:#111827;
  --line:#1e293b;
  --text:#e5e7eb;
  --muted:#94a3b8;
  --accent:#38bdf8;
  --accent2:#22c55e;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Arial,Helvetica,sans-serif;background:var(--bg);color:var(--text);line-height:1.7}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
.container{max-width:1120px;margin:0 auto;padding:0 20px}
header{position:sticky;top:0;z-index:10;background:rgba(2,6,23,.94);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
nav{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:16px 0}
.logo{font-size:22px;font-weight:700;color:#fff}
.menu{display:flex;flex-wrap:wrap;gap:14px}
.hero{padding:56px 0 28px}
.badge{display:inline-block;padding:6px 10px;border:1px solid var(--line);border-radius:999px;color:#cbd5e1;font-size:13px;margin:0 8px 10px 0}
.grid{display:grid;gap:20px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
.card{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:22px}
.content{padding:18px 0 50px}
.content h1,.content h2,.content h3{line-height:1.25;color:#fff}
.content h1{font-size:38px;margin:0 0 12px}
.content h2{font-size:26px;margin-top:28px}
.content h3{font-size:20px;margin-top:22px}
.lead{font-size:18px;color:#dbeafe}
.muted{color:var(--muted)}
ul.clean{padding-left:20px}
.note{border-left:4px solid var(--accent2);padding:12px 16px;background:#052e16;border-radius:10px;color:#dcfce7}
.section-title{margin:0 0 14px}
.related-list,.breadcrumb{display:flex;flex-wrap:wrap;gap:10px;padding:0;margin:0;list-style:none}
.related-list li a,.breadcrumb a{display:inline-block;padding:9px 12px;background:#0b1220;border:1px solid var(--line);border-radius:12px;color:#cbd5e1}
.breadcrumb{margin-bottom:18px}
.table-wrap{overflow:auto}
table{width:100%;border-collapse:collapse;background:#08111f;border:1px solid var(--line)}
th,td{padding:12px;border-bottom:1px solid var(--line);text-align:left}
footer{border-top:1px solid var(--line);padding:28px 0 40px;color:var(--muted)}
@media (max-width:900px){
  .grid-3,.grid-2{grid-template-columns:1fr}
  .content h1{font-size:30px}
  nav{align-items:flex-start;flex-direction:column}
}