:root{--bg:#0b1220;--panel:#111a2b;--ink:#e8eef8;--muted:#9fb0c8;--accent:#5ca8f2;--orange:#e8912a;--line:#22304a}
*{box-sizing:border-box}html{color-scheme:dark}body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.6 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
a{color:var(--accent)}a:hover{text-decoration:none}
.skip{position:absolute;left:-999px}.skip:focus{left:8px;top:8px;background:var(--panel);padding:8px;z-index:9}
header{border-bottom:1px solid var(--line);background:rgba(11,18,32,.9)}
.wrap{max-width:960px;margin:0 auto;padding:0 20px}
nav{display:flex;align-items:center;gap:20px;min-height:64px;flex-wrap:wrap}
nav .brand{display:flex;align-items:center;gap:10px;color:var(--ink);text-decoration:none;font-weight:700;letter-spacing:.04em;text-transform:uppercase}
nav .brand img{width:32px;height:32px;border-radius:6px}nav .links{margin-left:auto;display:flex;gap:18px}nav .links a{color:var(--muted);text-decoration:none}nav .links a[aria-current]{color:var(--ink)}
.hero{padding:56px 0 32px;background:linear-gradient(180deg,rgba(92,168,242,.08),transparent)}
h1{font-size:clamp(30px,5vw,44px);line-height:1.15;margin:0 0 12px}h2{font-size:24px;margin:36px 0 10px}h3{font-size:19px;margin:24px 0 8px}
.lead{font-size:20px;color:var(--muted);max-width:640px}
.badge{display:inline-block;border:1px solid var(--line);border-radius:999px;padding:4px 12px;color:var(--muted);font-size:14px;margin-bottom:16px}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px;margin:28px 0}
.card{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:18px}.card h3{margin-top:0}
main{padding:24px 0 48px}article{max-width:760px}
table{border-collapse:collapse;width:100%;margin:12px 0;font-size:16px}th,td{text-align:left;vertical-align:top;padding:8px 10px;border-bottom:1px solid var(--line)}th{color:var(--muted);font-weight:600}
.toc{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:14px 18px;margin:20px 0}.toc ol{margin:6px 0 0 18px;padding:0}
.meta{color:var(--muted);font-size:15px}
footer{border-top:1px solid var(--line);color:var(--muted);font-size:14px;padding:24px 0}
footer .wrap{display:flex;flex-wrap:wrap;gap:16px;justify-content:space-between}
.btn{display:inline-block;background:var(--orange);color:#111;font-weight:700;padding:12px 20px;border-radius:10px;text-decoration:none}
code{background:var(--panel);padding:2px 6px;border-radius:6px}