:root{--bg:#0A0C0E;--panel:#12161B;--panel2:#171C22;--line:#232A33;--text:#E9EEF3;--muted:#A3AEBA;--blue:#5BB0FF;--teal:#37D6C4;--r:14px}
*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--text);font:17px/1.7 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif}
a{color:var(--blue)}a:hover{color:var(--teal)}
.skip{position:absolute;left:-9999px}.skip:focus{left:16px;top:16px;background:#fff;color:#000;padding:8px;z-index:9}
.wrap{max-width:1140px;margin:0 auto;padding:0 20px}
.top{position:sticky;top:0;z-index:5;background:rgba(10,12,14,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.top-in{display:flex;align-items:center;gap:24px;height:64px}
.logo{color:var(--text);text-decoration:none;font-weight:700;font-size:18px;white-space:nowrap}.logo .mr{color:var(--blue);margin-right:2px}
.nav{display:flex;gap:18px;flex:1;overflow-x:auto}.nav a{color:var(--muted);text-decoration:none;font-size:15px;white-space:nowrap}.nav a:hover{color:var(--text)}
.btn{display:inline-block;background:var(--blue);color:#06101B;text-decoration:none;font-weight:600;padding:12px 22px;border-radius:999px;border:1px solid var(--blue)}
.btn:hover{background:var(--teal);border-color:var(--teal);color:#06101B}
.btn-sm{padding:8px 16px;font-size:14px}.btn-ghost{background:transparent;color:var(--text);border-color:var(--line)}.btn-ghost:hover{background:var(--panel2);color:var(--text);border-color:var(--muted)}
.hero{padding:56px 0 40px;background:radial-gradient(900px 400px at 15% 0%,rgba(91,176,255,.14),transparent 70%);border-bottom:1px solid var(--line)}
.crumbs{font-size:14px;color:var(--muted);margin-bottom:18px}.crumbs a{color:var(--muted)}.crumbs span{margin:0 6px}
.kicker{color:var(--teal);font-weight:600;letter-spacing:.04em;text-transform:uppercase;font-size:13px;margin:0 0 10px}
h1{font-size:clamp(30px,4.6vw,48px);line-height:1.15;margin:0 0 18px;max-width:20ch;letter-spacing:-.01em}
.lead{font-size:clamp(18px,2vw,20px);color:#C9D2DB;max-width:62ch;margin:0 0 26px}
.actions{display:flex;flex-wrap:wrap;gap:12px}
.grid{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:48px;padding-top:40px;padding-bottom:64px}
.content{max-width:720px}
.content h2{font-size:clamp(22px,2.6vw,28px);line-height:1.25;margin:44px 0 14px}
.content p,.content li{color:#D4DBE2}
.content ul,.content ol{padding-left:22px}.content li{margin:6px 0}
.steps li{margin:10px 0}
sup .fn{text-decoration:none;font-size:12px;color:var(--teal)}
.table{overflow-x:auto;margin:16px 0;border:1px solid var(--line);border-radius:var(--r)}
table{width:100%;border-collapse:collapse;font-size:15px}th,td{text-align:left;padding:11px 14px;border-bottom:1px solid var(--line)}
th{background:var(--panel2);color:var(--muted);font-weight:600}tr:last-child td{border-bottom:0}
.small{font-size:14px;color:var(--muted)!important}
.faq details{background:var(--panel);border:1px solid var(--line);border-radius:var(--r);padding:4px 18px;margin:10px 0}
.faq summary{cursor:pointer;font-weight:600;padding:12px 0;list-style:none}.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";float:right;color:var(--blue)}.faq details[open] summary::after{content:"–"}
.faq details p{margin:0 0 14px}
.cta-box{margin-top:48px;padding:28px;border-radius:18px;background:linear-gradient(135deg,rgba(91,176,255,.16),rgba(55,214,196,.10));border:1px solid var(--line)}
.cta-box h2{margin-top:0}
.refs{margin-top:48px;border-top:1px solid var(--line);padding-top:8px}.refs h2{font-size:20px}
.refs li{font-size:14px;color:var(--muted);margin:8px 0}
.side{position:sticky;top:88px;align-self:start;display:grid;gap:16px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--r);padding:18px 20px;font-size:15px}
.card ul{list-style:none;padding:0;margin:0}.card li{margin:6px 0}.card a{text-decoration:none}.card a[aria-current]{color:var(--teal);font-weight:600}
.side-h{margin:0 0 8px;font-size:12px;letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}
.foot{border-top:1px solid var(--line);color:var(--muted);font-size:14px}.foot-in{display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px;padding-top:24px;padding-bottom:32px}.foot a{color:var(--muted)}
.mnav{display:none;position:relative}
.mnav summary{list-style:none;cursor:pointer;width:44px;height:44px;display:flex;flex-direction:column;justify-content:center;gap:5px;padding:0 11px;border:1px solid var(--line);border-radius:10px}
.mnav summary::-webkit-details-marker{display:none}.mnav summary span{display:block;height:2px;background:var(--text);border-radius:2px}
.mnav nav{position:absolute;right:0;top:54px;width:min(300px,calc(100vw - 32px));background:var(--panel);border:1px solid var(--line);border-radius:var(--r);padding:10px;display:grid;gap:2px;box-shadow:0 16px 40px rgba(0,0,0,.5)}
.mnav nav a{color:var(--text);text-decoration:none;padding:11px 12px;border-radius:8px}.mnav nav a:hover{background:var(--panel2)}.mnav nav .btn{margin-top:6px;text-align:center;color:#06101B}
.related{margin-top:48px}.rel-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:12px}
.rel{display:block;background:var(--panel);border:1px solid var(--line);border-radius:var(--r);padding:16px 18px;text-decoration:none}
.rel:hover{border-color:var(--blue)}.rel strong{display:block;color:var(--text);margin-bottom:4px}.rel span{color:var(--muted);font-size:15px;line-height:1.5}
.hub{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:14px;margin:16px 0 8px}.hub .rel{padding:20px}
@media(max-width:900px){.grid{grid-template-columns:1fr;gap:24px}.side{position:static}.nav{display:none}.mnav{display:block;margin-left:auto}.top-in .btn-sm{display:none}}
@media(max-width:480px){.wrap{padding:0 16px}.hero{padding:36px 0 28px}.btn-sm{display:none}}