:root{--bg:#020916;--panel:#06162d;--panel2:#081d3c;--line:rgba(120,170,255,.16);--text:#eef6ff;--muted:#9fb0ca;--blue:#1984ff;--green:#62ff49;--acc:#3de2ff}
*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}
body{margin:0;background:radial-gradient(1200px 600px at 80% -10%,rgba(25,132,255,.18),transparent 60%),var(--bg);color:var(--text);font:16px/1.65 system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif}
a{color:var(--acc)}a:hover{text-decoration:none}
.wrap{max-width:860px;margin:0 auto;padding:0 16px}
header.top{border-bottom:1px solid var(--line);background:rgba(2,9,22,.85);position:sticky;top:0;backdrop-filter:blur(8px);z-index:5}
header.top .wrap{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:58px}
.brand{font-weight:900;letter-spacing:.08em;color:var(--text);text-decoration:none;text-transform:uppercase;font-size:15px}
.brand b{color:var(--acc)}
nav.top a{color:var(--muted);text-decoration:none;font-size:14px;font-weight:700;margin-left:14px}
nav.top a:hover{color:var(--text)}
.crumbs{font-size:13px;color:var(--muted);margin:22px 0 0}.crumbs a{color:var(--muted)}
h1{font-size:clamp(28px,6vw,44px);line-height:1.12;margin:14px 0 14px;letter-spacing:-.01em}
.lead{font-size:18px;color:#cfe0f7;margin:0 0 22px}
h2{font-size:24px;line-height:1.25;margin:38px 0 12px}
h3{font-size:18px;margin:22px 0 6px}
p{margin:0 0 14px}ul,ol{margin:0 0 16px;padding-left:22px}li{margin:6px 0}
.cta{display:flex;flex-wrap:wrap;gap:10px;margin:6px 0 10px}
.btn{display:inline-flex;align-items:center;min-height:46px;padding:0 20px;border-radius:12px;font-weight:800;text-decoration:none;background:var(--acc);color:#04101f}
.btn.ghost{background:transparent;color:var(--text);border:1px solid var(--line)}
.grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin:8px 0 16px}
.card{background:linear-gradient(180deg,var(--panel2),var(--panel));border:1px solid var(--line);border-radius:14px;padding:16px}
.card h3{margin:0 0 6px;font-size:16px}.card p{margin:0;color:var(--muted);font-size:15px}
.steps{counter-reset:s;list-style:none;padding:0}
.steps>li{counter-increment:s;position:relative;padding:14px 16px 14px 62px;margin:10px 0;background:var(--panel);border:1px solid var(--line);border-radius:14px}
.steps>li:before{content:counter(s);position:absolute;left:16px;top:14px;width:32px;height:32px;border-radius:50%;background:var(--acc);color:#04101f;font-weight:900;display:grid;place-items:center}
code,pre{font-family:ui-monospace,Consolas,monospace;font-size:14px}
pre{background:#010611;border:1px solid var(--line);border-radius:12px;padding:12px 14px;overflow-x:auto;white-space:pre}
code{background:rgba(255,255,255,.06);padding:1px 6px;border-radius:6px;overflow-wrap:anywhere}
details{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:12px 16px;margin:8px 0}
summary{cursor:pointer;font-weight:800}details p{margin:10px 0 0;color:#cfe0f7}
.note{border-left:3px solid var(--acc);padding:10px 14px;background:rgba(255,255,255,.03);border-radius:0 10px 10px 0;margin:16px 0}
footer{border-top:1px solid var(--line);margin-top:48px;padding:24px 0 36px;color:var(--muted);font-size:14px}
footer a{color:var(--muted);margin-right:14px}
@media(max-width:640px){.grid{grid-template-columns:1fr}nav.top a{margin-left:10px;font-size:13px}nav.top a.hide-sm{display:none}.steps>li{padding-left:56px}}