:root{
  --navy:#07193a;--navy-2:#0d2a5c;--blue:#1560d4;--blue-2:#0f4fb3;--sky:#2ab6e9;
  --orange:#ff6b1a;--orange-2:#e85c0d;--yellow:#ffc531;
  --ink:#10203a;--body:#2b3a55;--muted:#5f6d86;--line:#dfe6f2;--bg:#f4f7fc;--card:#fff;
  --ok:#128a4b;--ok-bg:#e6f7ee;--warn:#b26a00;--warn-bg:#fff4dd;--bad:#b3261e;--bad-bg:#fdecea;
  --hd:'Montserrat',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
  --tx:'Rubik',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
  --mono:'JetBrains Mono',ui-monospace,SFMono-Regular,Menlo,monospace;
  --r:14px;--w:1120px
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--body);font:16.5px/1.65 var(--tx);}
img{max-width:100%;height:auto;display:block}
a{color:var(--blue);text-decoration-thickness:1px;text-underline-offset:3px}
a:hover{color:var(--blue-2)}
h1,h2,h3,h4{font-family:var(--hd);color:var(--ink);line-height:1.2;margin:0 0 .5em;letter-spacing:-.01em}
h1{font-size:clamp(28px,4vw,42px);font-weight:800}
h2{font-size:clamp(22px,2.6vw,28px);font-weight:700;margin-top:1.6em;padding-top:.4em}
h3{font-size:19px;font-weight:700;margin-top:1.3em}
p{margin:0 0 1em}
ul,ol{padding-left:22px;margin:0 0 1.1em}
li{margin:.3em 0}
strong{color:var(--ink)}
code{font-family:var(--mono);font-size:.92em;background:#eef2fa;padding:.1em .4em;border-radius:5px}
.wrap{max-width:var(--w);margin:0 auto;padding:0 20px}
.skip{position:absolute;left:-999px;top:8px;background:#fff;padding:8px 12px;z-index:99}
.skip:focus{left:8px}

/* header */
.hdr{background:var(--navy);color:#fff;position:sticky;top:0;z-index:40;box-shadow:0 2px 0 rgba(255,255,255,.04)}
.hdr__in{display:flex;align-items:center;gap:22px;min-height:64px}
.logo{display:flex;align-items:center;gap:10px;color:#fff;text-decoration:none;font-family:var(--hd);font-weight:800;font-size:19px;letter-spacing:-.02em;white-space:nowrap}
.logo{flex-direction:column;align-items:flex-start;gap:3px}
.logo img{height:36px;width:auto;border-radius:6px}
.logo__tag{font:500 10.5px/1.2 var(--tx);color:#9fb0d2;letter-spacing:.02em;white-space:nowrap}
.ftr .logo img{height:44px}
.pop__logo{height:32px;width:auto;border-radius:6px;margin:0 0 10px}
.nav{display:flex;gap:2px;margin-left:auto}
.nav a{color:#d6e0f5;text-decoration:none;padding:9px 12px;border-radius:9px;font-size:14.5px;font-weight:500}
.nav a:hover{background:rgba(255,255,255,.08);color:#fff}
.nav a[aria-current]{background:rgba(255,255,255,.12);color:#fff}
.hdr .btn{padding:10px 18px;font-size:14px}
.burger{display:none;margin-left:auto;background:none;border:1px solid rgba(255,255,255,.25);color:#fff;border-radius:9px;width:44px;height:44px;font-size:22px;cursor:pointer}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--orange);color:#fff!important;text-decoration:none;font-family:var(--hd);font-weight:700;padding:14px 26px;border-radius:12px;border:0;cursor:pointer;line-height:1.1;box-shadow:0 6px 18px rgba(255,107,26,.32);transition:transform .15s,box-shadow .15s,background .15s}
.btn:hover{background:var(--orange-2);transform:translateY(-1px);box-shadow:0 8px 22px rgba(255,107,26,.38)}
.btn--ghost{background:transparent;color:#fff!important;box-shadow:none;border:2px solid rgba(255,255,255,.55)}
.btn--ghost:hover{background:rgba(255,255,255,.1);box-shadow:none}
.btn--blue{background:var(--blue);box-shadow:0 6px 18px rgba(21,96,212,.3)}
.btn--blue:hover{background:var(--blue-2)}

/* hero */
.hero{background:radial-gradient(900px 400px at 85% -10%,rgba(42,182,233,.35),transparent 60%),linear-gradient(160deg,var(--navy) 0%,var(--navy-2) 60%,#123a7a 100%);color:#fff;padding:44px 0 40px;position:relative;overflow:hidden}
.hero::after{content:"";position:absolute;right:-120px;bottom:-160px;width:420px;height:420px;border-radius:50%;border:64px solid rgba(255,197,49,.08)}
.hero .wrap{position:relative;z-index:1}
.crumbs{font-size:13.5px;margin:0 0 16px;color:#b8c6e4}
.crumbs a{color:#d6e0f5}
.crumbs span{margin:0 8px;opacity:.6}
.hero h1{color:#fff;max-width:820px}
.lead{font-size:clamp(17px,1.6vw,19.5px);color:#d9e3f7;max-width:760px;margin:0 0 22px}
.cta-row{display:flex;flex-wrap:wrap;gap:12px;margin:0 0 20px}
.meta{display:flex;flex-wrap:wrap;gap:8px 22px;font-size:13.5px;color:#b8c6e4;align-items:center}
.meta b{color:#fff;font-weight:600}
.meta .av{width:28px;height:28px;border-radius:50%;object-fit:cover;border:2px solid rgba(255,255,255,.5);display:inline-block;vertical-align:middle;margin-right:8px}

/* status badges */
.st{display:inline-flex;align-items:center;gap:6px;font-family:var(--hd);font-weight:700;font-size:12.5px;padding:4px 10px;border-radius:999px;white-space:nowrap;letter-spacing:.01em}
.st::before{content:"";width:8px;height:8px;border-radius:50%;background:currentColor}
.st--ok{color:var(--ok);background:var(--ok-bg)}
.st--warn{color:var(--warn);background:var(--warn-bg)}
.st--bad{color:var(--bad);background:var(--bad-bg)}

/* layout */
.main{padding:34px 0 50px}
.grid{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:40px;align-items:start}
.art{min-width:0}
.aside{position:sticky;top:84px;display:grid;gap:16px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:22px 24px;box-shadow:0 2px 10px rgba(16,32,58,.04)}
.card h3{margin-top:0}
.toc ol{margin:0;padding-left:18px;font-size:14.5px}
.toc li{margin:.35em 0}
.toc a{color:var(--body);text-decoration:none}
.toc a:hover{color:var(--blue);text-decoration:underline}
.card--cta{background:linear-gradient(160deg,var(--navy),var(--navy-2));color:#dbe4f7;border:0}
.card--cta h3{color:#fff}
.card--cta .btn{width:100%;margin-top:6px}
.card--cta small{display:block;margin-top:10px;font-size:12px;color:#9fb0d2;line-height:1.45}
.card--author{display:grid;grid-template-columns:64px 1fr;gap:14px;align-items:start}
.card--author img{width:64px;height:64px;border-radius:50%;object-fit:cover;border:3px solid var(--bg)}
.card--author b{display:block;color:var(--ink);font-family:var(--hd)}
.card--author small{color:var(--muted);font-size:13px;line-height:1.45;display:block}

/* content blocks */
.box{border-radius:var(--r);padding:20px 22px;margin:22px 0;border:1px solid var(--line);background:#fff}
.box--info{border-left:5px solid var(--sky);background:#f2fafe}
.box--warn{border-left:5px solid var(--yellow);background:#fffbef}
.box--ok{border-left:5px solid var(--ok);background:var(--ok-bg)}
.box p:last-child{margin-bottom:0}
.promo{display:grid;grid-template-columns:1fr auto;gap:16px;align-items:center;background:linear-gradient(135deg,#fff8e8,#fff);border:2px dashed var(--yellow);border-radius:var(--r);padding:18px 22px;margin:22px 0}
.promo__lbl{font-size:13px;color:var(--muted);text-transform:uppercase;letter-spacing:.08em;font-family:var(--hd);font-weight:700;margin:0 0 4px}
.promo__code{font-family:var(--mono);font-size:clamp(20px,3vw,28px);font-weight:700;color:var(--ink);letter-spacing:.06em;margin:0}
.promo__act{display:grid;gap:8px;justify-items:stretch}
.copy{background:var(--navy);color:#fff;border:0;border-radius:10px;padding:11px 16px;font-family:var(--hd);font-weight:700;cursor:pointer;font-size:14px;min-height:44px}
.copy:hover{background:var(--navy-2)}
.copy[data-done]{background:var(--ok)}
.tbl{overflow-x:auto;margin:20px 0;border:1px solid var(--line);border-radius:var(--r);background:#fff}
table{border-collapse:collapse;width:100%;font-size:15px;min-width:560px}
th,td{padding:12px 14px;text-align:left;vertical-align:top;border-bottom:1px solid var(--line)}
th{background:#eef3fb;font-family:var(--hd);font-weight:700;color:var(--ink);font-size:13.5px}
tr:last-child td{border-bottom:0}
td .st{font-size:11.5px}
.pass{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:12px;margin:22px 0}
.pass div{background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px 16px}
.pass small{display:block;color:var(--muted);font-size:12.5px;text-transform:uppercase;letter-spacing:.06em;font-family:var(--hd);font-weight:700;margin-bottom:4px}
.pass b{font-family:var(--hd);color:var(--ink);font-size:15.5px}
.steps{counter-reset:s;list-style:none;padding:0;margin:20px 0}
.steps li{position:relative;padding:4px 0 4px 54px;margin:0 0 14px}
.steps li::before{counter-increment:s;content:counter(s);position:absolute;left:0;top:0;width:40px;height:40px;border-radius:12px;background:var(--blue);color:#fff;font-family:var(--hd);font-weight:800;display:grid;place-items:center}
.cta-band{margin:34px 0;background:linear-gradient(120deg,var(--blue),#1e73e8 60%,var(--sky));color:#fff;border-radius:var(--r);padding:26px 28px;display:grid;grid-template-columns:1fr auto;gap:18px;align-items:center}
.cta-band h3{color:#fff;margin:0 0 4px}
.cta-band p{margin:0;color:#e3eefc;font-size:15px}
.cta-band .btn{background:var(--yellow);color:var(--navy)!important;box-shadow:0 6px 18px rgba(0,0,0,.18)}
.cta-band .btn:hover{background:#ffd35c}
.faq details{background:#fff;border:1px solid var(--line);border-radius:12px;margin:0 0 10px;padding:0 18px}
.faq summary{cursor:pointer;font-family:var(--hd);font-weight:700;color:var(--ink);padding:15px 0;list-style:none;display:flex;justify-content:space-between;gap:12px;font-size:16px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--blue);font-size:22px;line-height:1;flex:none}
.faq details[open] summary::after{content:"–"}
.faq details p{padding:0 0 16px;margin:0}
.related{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px;margin:18px 0 0}
.related a{display:block;background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px 16px;text-decoration:none;color:var(--ink);font-weight:600;font-family:var(--hd);font-size:14.5px}
.related a small{display:block;color:var(--muted);font-family:var(--tx);font-weight:400;font-size:13px;margin-top:4px}
.related a:hover{border-color:var(--blue)}
.tiles{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:14px;margin:22px 0}
.tile{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:20px;text-decoration:none;color:var(--body);display:block;transition:border-color .15s,transform .15s}
.tile:hover{border-color:var(--blue);transform:translateY(-2px)}
.tile b{display:block;font-family:var(--hd);color:var(--ink);font-size:16px;margin:8px 0 6px}
.tile span{font-size:14px;color:var(--muted)}
.tile i{font-style:normal;display:inline-grid;place-items:center;width:38px;height:38px;border-radius:10px;background:#eaf1fd;color:var(--blue);font-family:var(--hd);font-weight:800;font-size:13px}
.author-box{display:grid;grid-template-columns:96px 1fr;gap:20px;align-items:center;background:linear-gradient(135deg,var(--blue),#1e73e8);color:#fff;border-radius:var(--r);padding:22px 24px;margin:30px 0}
.author-box img{width:96px;height:96px;border-radius:50%;object-fit:cover;border:4px solid rgba(255,255,255,.35)}
.author-box b{font-family:var(--hd);font-size:20px;display:block;color:#fff}
.author-box p{margin:6px 0 0;color:#e6eefb;font-size:15px}
.author-box a{color:#fff}
.upd{font-size:13.5px;color:var(--muted);border-top:1px solid var(--line);padding-top:14px;margin-top:30px}
.terms dt{font-family:var(--hd);font-weight:700;color:var(--ink);margin-top:12px}
.terms dd{margin:4px 0 0}

/* footer */
.ftr{background:var(--navy);color:#a9b8d8;padding:40px 0 24px;font-size:14px}
.ftr__grid{display:grid;grid-template-columns:1.3fr 1fr 1fr 1fr;gap:28px}
.ftr h4{color:#fff;font-size:14px;text-transform:uppercase;letter-spacing:.08em;margin:0 0 12px}
.ftr a{color:#d6e0f5;text-decoration:none;display:block;padding:3px 0}
.ftr a:hover{color:#fff;text-decoration:underline}
.ftr__legal{border-top:1px solid rgba(255,255,255,.12);margin-top:26px;padding-top:18px;font-size:12.5px;line-height:1.55;color:#8fa0c4}
.age{display:inline-grid;place-items:center;width:38px;height:38px;border-radius:50%;border:2px solid var(--yellow);color:var(--yellow);font-family:var(--hd);font-weight:800;font-size:13px;margin-right:10px;vertical-align:middle}

/* sticky mobile bar */
.mbar{display:none;position:fixed;left:0;right:0;bottom:0;z-index:35;background:rgba(7,25,58,.96);backdrop-filter:blur(8px);padding:10px 14px calc(10px + env(safe-area-inset-bottom));border-top:1px solid rgba(255,255,255,.12)}
.mbar .btn{width:100%;padding:13px}

/* popup */
.pop{position:fixed;inset:0;z-index:60;display:none;align-items:center;justify-content:center;padding:20px}
.pop[data-open]{display:flex}
.pop__bg{position:absolute;inset:0;background:rgba(7,25,58,.65);animation:popfade .25s}
.pop__box{position:relative;background:#fff;border-radius:18px;padding:28px 28px 22px;max-width:440px;width:100%;box-shadow:0 30px 80px rgba(0,0,0,.35);animation:popin .3s cubic-bezier(.22,.9,.3,1)}
.pop__x{position:absolute;top:8px;right:8px;width:40px;height:40px;border:0;background:none;font-size:26px;color:var(--muted);cursor:pointer;border-radius:50%}
.pop__x:hover{background:var(--bg)}
.pop__eyebrow{font-family:var(--hd);font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--orange);font-weight:800;margin:0 0 8px}
.pop__box h2{font-size:23px;margin:0 0 10px;padding:0}
.pop__box p{font-size:15px;color:var(--body);margin:0 0 18px}
.pop__box .btn{width:100%}
.pop__later{display:block;width:100%;margin:10px 0 0;background:none;border:0;color:var(--muted);font:14px var(--tx);cursor:pointer;text-decoration:underline;text-underline-offset:3px;min-height:40px}
.pop__note{font-size:11.5px;color:var(--muted);text-align:center;margin:10px 0 0;line-height:1.5}
@keyframes popfade{from{opacity:0}}
@keyframes popin{from{opacity:0;transform:translateY(16px) scale(.98)}}

@media (max-width:960px){
  .grid{grid-template-columns:1fr}
  .aside{position:static}
  .ftr__grid{grid-template-columns:1fr 1fr}
}
@media (max-width:760px){
  body{font-size:16px}
  .nav{display:none;position:absolute;left:0;right:0;top:64px;background:var(--navy);flex-direction:column;padding:8px 12px 14px;border-top:1px solid rgba(255,255,255,.1)}
  .nav[data-open]{display:flex}
  .nav a{padding:13px 12px;font-size:16px}
  .burger{display:block}
  .logo img{height:32px}
  .logo__tag{font-size:9.5px;white-space:normal;max-width:220px}
  .hdr .btn{display:none}
  .hero{padding:28px 0 26px}
  .cta-row .btn{width:100%}
  .promo{grid-template-columns:1fr}
  .cta-band{grid-template-columns:1fr;padding:22px}
  .cta-band .btn{width:100%}
  .author-box{grid-template-columns:72px 1fr;padding:18px}
  .author-box img{width:72px;height:72px}
  .mbar{display:block}
  .main{padding-bottom:90px}
  .pop{align-items:flex-end;padding:0}
  .pop__box{max-width:none;border-radius:16px 16px 0 0;padding:16px 18px 18px;max-height:44vh;overflow-y:auto;animation:popup .3s cubic-bezier(.22,.9,.3,1)}
  .pop__box h2{font-size:18px;padding-right:34px}
  .pop__box p{font-size:14px;margin-bottom:12px}
  @keyframes popup{from{transform:translateY(100%)}}
  .ftr__grid{grid-template-columns:1fr}
}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}