:root{
  --bg:#0b1220;
  --card:#0f1a33;
  --muted:#a9b4d0;
  --text:#e9eeff;
  --accent:#6ee7ff;
  --accent2:#a78bfa;
  --border:rgba(233,238,255,.12);
  --shadow:0 18px 50px rgba(0,0,0,.35);
  --radius:18px;
  --max:1080px;
  --sans: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji","Segoe UI Emoji";
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;background:radial-gradient(1200px 800px at 10% 10%, rgba(110,231,255,.12), transparent 60%),
radial-gradient(900px 700px at 90% 15%, rgba(167,139,250,.10), transparent 55%),
var(--bg); color:var(--text); font-family:var(--sans); line-height:1.55}
a{color:var(--accent); text-decoration:none}
a:hover{text-decoration:underline}
.container{max-width:var(--max); margin:0 auto; padding:0 18px}
.site-header{position:sticky; top:0; z-index:30; backdrop-filter:saturate(140%) blur(10px);
background:rgba(11,18,32,.72); border-bottom:1px solid var(--border)}
.header-inner{display:flex; align-items:center; justify-content:space-between; gap:14px; padding:12px 0}
.brand{display:flex; align-items:center; gap:10px; font-weight:800; letter-spacing:.2px}
.brand-badge{width:28px;height:28px;border-radius:0;background:transparent;border:0}
.nav{display:flex; gap:14px; flex-wrap:wrap; align-items:center; justify-content:flex-end}
.nav a{color:var(--text); opacity:.9; font-weight:600; font-size:14px; padding:8px 10px; border-radius:12px}
.nav a:hover{background:rgba(233,238,255,.06); text-decoration:none}
.cta{display:inline-flex; gap:10px; align-items:center; justify-content:center; padding:10px 14px;
border-radius:14px; border:1px solid rgba(110,231,255,.35);
background:linear-gradient(135deg, rgba(110,231,255,.16), rgba(167,139,250,.10));
box-shadow:0 14px 40px rgba(0,0,0,.35); font-weight:800; color:var(--text)}
.cta:hover{text-decoration:none; filter:brightness(1.05)}
.hero{padding:44px 0 26px}
.kicker{display:inline-flex; gap:8px; align-items:center; font-size:12px; font-weight:800;
padding:6px 10px; border-radius:999px; border:1px solid rgba(233,238,255,.14);
background:rgba(233,238,255,.05); color:var(--muted)}
h1{font-size:42px; line-height:1.1; margin:14px 0 10px}
h2{margin:30px 0 10px; font-size:26px; line-height:1.2}
h3{margin:18px 0 8px; font-size:18px; line-height:1.3}
p{color:rgba(233,238,255,.92); margin:10px 0}
.small{font-size:13px; color:var(--muted)}
.grid{display:grid; grid-template-columns:repeat(12, 1fr); gap:14px}
.card{background:rgba(15,26,51,.78); border:1px solid var(--border); border-radius:var(--radius); box-shadow:var(--shadow)}
.card-pad{padding:16px}
.col-7{grid-column:span 7}
.col-5{grid-column:span 5}
.col-12{grid-column:span 12}
@media (max-width: 920px){
  h1{font-size:34px}
  .col-7,.col-5{grid-column:span 12}
  .nav{display:none}
}
.list{margin:10px 0 0; padding:0 0 0 18px}
.list li{margin:6px 0; color:rgba(233,238,255,.92)}
.pill-row{display:flex; flex-wrap:wrap; gap:10px; margin-top:12px}
.pill{display:inline-flex; align-items:center; gap:8px; padding:9px 12px; border-radius:999px;
border:1px solid rgba(233,238,255,.14); background:rgba(233,238,255,.04); color:rgba(233,238,255,.92);
font-weight:700; font-size:14px}
.notice{padding:12px 14px; border-radius:14px; border:1px dashed rgba(233,238,255,.25); background:rgba(233,238,255,.04)}
hr{border:0; border-top:1px solid var(--border); margin:22px 0}
.form{display:flex; gap:10px; margin-top:10px; flex-wrap:wrap}
.input{flex:1; min-width:220px; padding:12px 12px; border-radius:14px; border:1px solid rgba(233,238,255,.18);
background:rgba(0,0,0,.22); color:var(--text); outline:none}
.input:focus{border-color:rgba(110,231,255,.55)}
.button{padding:12px 14px; border-radius:14px; border:1px solid rgba(110,231,255,.35);
background:linear-gradient(135deg, rgba(110,231,255,.18), rgba(167,139,250,.12));
color:var(--text); font-weight:900; cursor:pointer}
.button:hover{filter:brightness(1.05)}
.toc{padding:12px 14px; border-radius:14px; border:1px solid var(--border); background:rgba(0,0,0,.18)}
.toc a{color:rgba(233,238,255,.92)}
.site-footer{padding:28px 0 40px; border-top:1px solid var(--border); margin-top:34px}
.footer-grid{display:grid; grid-template-columns: 2fr 1fr 1fr; gap:18px}
@media (max-width: 920px){.footer-grid{grid-template-columns:1fr}}
.badge{display:inline-block; padding:4px 10px; border-radius:999px; border:1px solid rgba(233,238,255,.14);
background:rgba(233,238,255,.05); color:var(--muted); font-weight:700; font-size:12px}
.table{width:100%; border-collapse:collapse; overflow:hidden; border-radius:14px; border:1px solid var(--border)}
.table th,.table td{padding:10px 12px; border-bottom:1px solid var(--border); vertical-align:top}
.table th{font-size:12px; text-transform:uppercase; letter-spacing:.08em; color:var(--muted); text-align:left}
.table tr:last-child td{border-bottom:0}
.code{font-family:ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono","Courier New", monospace;
font-size:12px; padding:10px 12px; border-radius:14px; border:1px solid var(--border); background:rgba(0,0,0,.22); color:rgba(233,238,255,.92); overflow:auto}


/* Utility visibility helpers */
.mobile-only{display:none}
.devnote{display:none}
@media (max-width: 920px){
  .mobile-only{display:inline-flex}
}


.brand-mark{width:26px;height:26px;display:block;border-radius:0;padding:0;background:transparent;border:0}
.fineprint{font-size:12px;line-height:1.45;opacity:.72}
@media (max-width:920px){.fineprint{font-size:11px}}

.muted{color:var(--muted); opacity:.9}
.hr{height:1px; background:var(--border); margin:14px 0}


/* Accessibility */
.skip-link{position:absolute; left:-999px; top:10px; background:rgba(233,238,255,.12); border:1px solid var(--border); padding:10px 12px; border-radius:12px; color:var(--text); z-index:999}
.skip-link:focus{left:10px; outline:none}

/* FAQ details */
details.faq{border:1px solid var(--border); border-radius:14px; padding:10px 12px; background:rgba(0,0,0,.18); margin:10px 0}
details.faq summary{cursor:pointer; font-weight:800}
details.faq summary::-webkit-details-marker{display:none}
details.faq[open]{background:rgba(0,0,0,.22)}
details.faq > div{margin-top:8px}

/* Related links */
.related-links h2{margin-top:6px}
.related-links .small{margin-top:6px}