:root{
  --bg:#0b1020;--bg2:#0e152b;--ink:#0f172a;--body:#475069;--muted:#79839c;
  --line:#e7e9f2;--soft:#f6f7fb;--white:#fff;
  --brand:#6d5efc;--brand2:#3b82f6;--cyan:#22d3ee;
  --grad:linear-gradient(135deg,#6d5efc 0%,#3b82f6 55%,#22d3ee 100%);
  --shadow:0 10px 30px -12px rgba(16,24,64,.18);--shadow-lg:0 30px 60px -20px rgba(16,24,64,.28);
  --r:16px;--maxw:1140px;--prose:780px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;color:var(--ink);background:var(--white);line-height:1.7;-webkit-font-smoothing:antialiased}
h1,h2,h3{font-family:Sora,Inter,system-ui,sans-serif;line-height:1.18;letter-spacing:-.02em;margin:0 0 .5em}
h1{font-size:clamp(2rem,4.4vw,3.1rem);font-weight:800}
h2{font-size:clamp(1.45rem,2.8vw,2.1rem);font-weight:700}
h3{font-size:1.16rem;font-weight:700}
p{margin:0 0 1rem}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 22px}
.eyebrow{display:inline-block;font-size:.8rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--brand);margin-bottom:12px}
.muted{color:var(--body)}
.lead{font-size:1.12rem;color:var(--body);max-width:640px}
.btn{display:inline-flex;align-items:center;gap:.5em;font-weight:600;font-size:.96rem;padding:13px 22px;border-radius:999px;border:1px solid transparent;cursor:pointer;transition:transform .15s,box-shadow .2s,background .2s}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 12px 24px -10px rgba(109,94,252,.7)}
.btn-primary:hover{transform:translateY(-2px)}
.btn-ghost2{background:rgba(255,255,255,.08);color:#fff;border-color:rgba(255,255,255,.22)}
.btn-ghost2:hover{background:rgba(255,255,255,.16)}
.btn-light{background:#fff;color:var(--ink);box-shadow:var(--shadow)}
.btn-light:hover{transform:translateY(-2px)}
.skip{position:absolute;left:-9999px}
.skip:focus{left:16px;top:12px;z-index:99;background:#fff;color:#000;padding:8px 14px;border-radius:8px}

/* header */
header{position:sticky;top:0;z-index:50;background:rgba(11,16,32,.82);backdrop-filter:blur(12px);border-bottom:1px solid rgba(255,255,255,.07)}
.nav{display:flex;align-items:center;justify-content:space-between;height:70px}
.brand{display:flex;align-items:center;gap:10px;font-family:Sora;font-weight:800;color:#fff;font-size:1.16rem}
.brand .mark{width:33px;height:33px;border-radius:9px;background:var(--grad);display:grid;place-items:center;color:#fff;font-weight:800;font-size:1rem}
.dotc{color:#67e8f9}
.menu{display:flex;align-items:center;gap:26px}
.menu>a,.hassub>a{color:rgba(255,255,255,.82);font-size:.95rem;font-weight:500;transition:color .2s}
.menu>a:hover,.hassub>a:hover{color:#fff}
.menu a[aria-current="page"]{color:#fff}
.hassub{position:relative}
.hassub>a::after{content:" \25BE";font-size:.7em;opacity:.7}
.sub{position:absolute;top:100%;left:50%;transform:translateX(-50%) translateY(8px);background:#0e152b;border:1px solid rgba(255,255,255,.12);border-radius:12px;padding:8px;list-style:none;margin:0;min-width:210px;opacity:0;visibility:hidden;transition:opacity .18s,transform .18s;box-shadow:0 30px 60px -20px rgba(0,0,0,.6)}
.hassub:hover .sub,.hassub:focus-within .sub{opacity:1;visibility:visible;transform:translateX(-50%) translateY(4px)}
.sub li a{display:block;padding:9px 13px;border-radius:8px;color:rgba(255,255,255,.82);font-size:.92rem}
.sub li a:hover{background:rgba(255,255,255,.08);color:#fff}
.navtoggle{display:none;background:none;border:0;color:#fff;font-size:1.5rem;cursor:pointer}
.mobilemenu{display:none}

/* heroes */
.phero,.chero{background:radial-gradient(900px 500px at 85% -10%,rgba(34,211,238,.16),transparent 60%),radial-gradient(800px 460px at 5% 10%,rgba(109,94,252,.26),transparent 55%),linear-gradient(180deg,#0b1020,#0e152b);color:#fff;padding:56px 0 64px}
.phero h1,.chero h1{color:#fff;max-width:18ch}
.phero .lead,.chero .lead{color:rgba(255,255,255,.82);max-width:60ch}
.chero h1{max-width:22ch}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}

/* breadcrumbs */
.crumbs{margin-bottom:18px}
.crumbs ol{list-style:none;display:flex;flex-wrap:wrap;gap:8px;padding:0;margin:0;font-size:.85rem}
.crumbs li{color:rgba(255,255,255,.55)}
.crumbs li a{color:rgba(255,255,255,.78)}
.crumbs li a:hover{color:#fff;text-decoration:underline}
.crumbs li+li::before{content:"/";margin-right:8px;color:rgba(255,255,255,.35)}
.chero .crumbs li,.phero .crumbs li{color:rgba(255,255,255,.6)}

/* article */
.article{max-width:var(--maxw);padding-top:18px;padding-bottom:30px}
.article .sec{max-width:var(--prose);margin:0 auto;padding:30px 0;border-bottom:1px solid var(--line)}
.article .sec:last-child{border-bottom:0}
.article .sec p{color:var(--body);font-size:1.04rem}
.article .sec ul{color:var(--body);padding-left:20px;margin:0 0 1rem}
.article .sec li{margin-bottom:8px}
.article h2{margin-top:0}
.related-h{margin-bottom:16px}

/* related / hub cards */
.rgrid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:18px;margin-top:8px}
.rcard{display:block;background:#fff;border:1px solid var(--line);border-radius:14px;padding:22px;transition:transform .2s,box-shadow .2s,border-color .2s}
.rcard:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:transparent}
.rcard h3{font-size:1.04rem;margin-bottom:6px}
.rcard p{font-size:.9rem;color:var(--body);margin:0 0 10px}
.rcard .more{font-size:.85rem;font-weight:600;color:var(--brand)}
.hubgrid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:22px;margin:10px 0 8px}
.hubcard{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:28px;transition:transform .2s,box-shadow .2s}
.hubcard:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.hubcard h3{font-size:1.2rem;margin-bottom:8px}
.hubcard h3 a:hover{color:var(--brand)}
.hubcard p{color:var(--body);font-size:.95rem}
.subl{margin-top:14px;font-size:.86rem;line-height:1.9}
.subl a{color:var(--brand);font-weight:500}
.subl a:hover{text-decoration:underline}
.pills{display:flex;flex-wrap:wrap;gap:10px}
.pills a{border:1px solid var(--line);border-radius:999px;padding:8px 16px;font-size:.9rem;font-weight:500;color:var(--ink);transition:border-color .2s,color .2s}
.pills a:hover{border-color:var(--brand);color:var(--brand)}

/* callout */
.callout{background:var(--soft);border:1px solid var(--line);border-radius:var(--r);padding:24px 26px!important;max-width:var(--prose)}
.callout p{margin:0 0 14px}
.callout a.btn{margin:0}

/* faq */
.faq{max-width:var(--prose)}
details{border:1px solid var(--line);border-radius:13px;padding:0 20px;margin-bottom:12px;background:#fff}
details[open]{box-shadow:var(--shadow)}
summary{list-style:none;cursor:pointer;font-family:Sora;font-weight:600;font-size:1rem;padding:18px 0;display:flex;justify-content:space-between;align-items:center;gap:14px}
summary::-webkit-details-marker{display:none}
summary .plus{flex:none;width:25px;height:25px;border-radius:7px;background:var(--soft);display:grid;place-items:center;transition:transform .2s,background .2s}
details[open] summary .plus{transform:rotate(45deg);background:var(--brand);color:#fff}
details p{padding:0 0 20px;margin:0;color:var(--body)}

/* cta */
.cta{background:var(--grad);border-radius:22px;padding:48px;text-align:center;color:#fff;max-width:var(--prose)}
.cta h2{color:#fff}
.cta p{color:rgba(255,255,255,.92);max-width:460px;margin:0 auto 22px}

/* footer */
footer{background:var(--bg);color:rgba(255,255,255,.7);padding:60px 0 28px;margin-top:20px}
.fgrid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;margin-bottom:36px}
footer .brand{margin-bottom:12px}
.fdesc{font-size:.9rem;max-width:280px}
footer h4{color:#fff;font-family:Sora;font-size:.92rem;margin:0 0 13px}
footer ul{list-style:none;padding:0;margin:0;display:grid;gap:9px}
footer a{color:rgba(255,255,255,.7);font-size:.9rem}
footer a:hover{color:#fff}
.fbar{border-top:1px solid rgba(255,255,255,.1);padding-top:22px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;font-size:.84rem;color:rgba(255,255,255,.55)}

@media(max-width:860px){
  .menu{display:none}
  .navtoggle{display:block}
  .mobilemenu.open{display:flex;flex-direction:column;gap:14px;padding:18px 22px;background:#0b1020;border-bottom:1px solid rgba(255,255,255,.1)}
  .mobilemenu a{color:rgba(255,255,255,.85);font-weight:500}
  .fgrid{grid-template-columns:1fr 1fr}
}
@media(max-width:560px){
  .fgrid{grid-template-columns:1fr}
  .cta{padding:34px 22px}
}
/* feature & thumbnail images */
.feature{margin:0 0 6px;padding:0}
.feature img{width:100%;height:auto;max-height:430px;aspect-ratio:16/9;object-fit:cover;border-radius:18px;box-shadow:var(--shadow-lg);display:block}
.hubcard .thumb{display:block;border-radius:13px;overflow:hidden;margin-bottom:16px;line-height:0;background:#0e152b}
.hubcard .thumb img{width:100%;aspect-ratio:16/9;height:auto;object-fit:cover;display:block;transition:transform .4s ease}
.hubcard:hover .thumb img{transform:scale(1.04)}
@media(max-width:560px){.feature img{max-height:240px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto;transition:none!important}}