:root{
  --bg: #0b1220;
  --bg2:#0f1a2e;
  --card:#0f1a2a;
  --text:#eaf0ff;
  --muted:#a7b4d6;
  --line: rgba(255,255,255,.10);
  --brand:#6ea8ff;
  --brand2:#8ee2ff;
  --shadow: 0 18px 50px rgba(0,0,0,.35);
  --radius: 18px;
  --radius2: 26px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  color:var(--text);
  background:
    radial-gradient(900px 600px at 15% 10%, rgba(110,168,255,.25), transparent 60%),
    radial-gradient(900px 600px at 90% 20%, rgba(142,226,255,.18), transparent 55%),
    linear-gradient(180deg, var(--bg), #070b14 70%);
}

a{color:inherit; text-decoration:none}
a:hover{opacity:.92}
p{line-height:1.6; color:var(--muted)}
h1,h2,h3{margin:0 0 .65rem 0; color:var(--text); letter-spacing:-.02em}
h1{font-size:clamp(2rem, 4vw, 3.1rem); line-height:1.05}
h2{font-size:clamp(1.4rem, 2.4vw, 2rem)}
h3{font-size:1.05rem}

.container{width:min(1100px, calc(100% - 2rem)); margin:0 auto}

.skip{
  position:absolute; left:-999px; top:auto; width:1px; height:1px; overflow:hidden;
}
.skip:focus{
  left:1rem; top:1rem; width:auto; height:auto; padding:.6rem .8rem;
  background:rgba(255,255,255,.10); border:1px solid var(--line); border-radius:12px;
  backdrop-filter: blur(12px);
}

.sr-only{position:absolute!important; width:1px; height:1px; padding:0; margin:-1px; overflow:hidden; clip:rect(0,0,0,0); white-space:nowrap; border:0}

.header{
  position:sticky; top:0; z-index:20;
  background: rgba(7,10,18,.55);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.header__inner{display:flex; align-items:center; justify-content:space-between; padding:.85rem 0}

.brand{display:flex; gap:.75rem; align-items:center}
.brand__mark{
  width:42px; height:42px; border-radius:14px;
  background:
    linear-gradient(135deg, rgba(110,168,255,.95), rgba(142,226,255,.7));
  box-shadow: 0 12px 30px rgba(110,168,255,.15);
}
.brand__text{display:flex; flex-direction:column; line-height:1.1}
.brand__name{font-weight:800; letter-spacing:-.02em}
.brand__tag{font-size:.82rem; color:var(--muted)}

.nav{display:flex; gap:1.05rem; align-items:center}
.nav a{font-weight:600; font-size:.95rem; color:rgba(234,240,255,.9)}
.nav a:hover{color:#fff}

.navbtn{
  display:none;
  border:1px solid var(--line);
  background:rgba(255,255,255,.06);
  color:var(--text);
  padding:.55rem .65rem;
  border-radius:14px;
}
.navbtn__bars{
  display:block; width:22px; height:14px; position:relative;
}
.navbtn__bars::before,
.navbtn__bars::after{
  content:""; position:absolute; left:0; right:0; height:2px; background:rgba(234,240,255,.9); border-radius:2px;
}
.navbtn__bars::before{top:2px}
.navbtn__bars::after{bottom:2px}

.btn{
  display:inline-flex; align-items:center; justify-content:center;
  gap:.5rem;
  border-radius: 999px;
  padding:.95rem 1.1rem;
  border:1px solid var(--line);
  background: rgba(255,255,255,.05);
  color:var(--text);
  font-weight:800;
  letter-spacing:-.01em;
}
.btn--primary{
  background: linear-gradient(135deg, rgba(110,168,255,.95), rgba(142,226,255,.7));
  border-color: rgba(255,255,255,.08);
  color:#081126;
}
.btn--ghost{background:rgba(255,255,255,.04)}
.btn--sm{padding:.62rem .85rem; font-weight:800}
.btn--block{width:100%}

.hero{padding:3.2rem 0 2.2rem}
.hero__grid{
  display:grid; gap:1.6rem;
  grid-template-columns: 1.2fr .8fr;
  align-items:start;
}
.kicker{
  color:rgba(234,240,255,.85);
  font-weight:700;
  letter-spacing:.06em;
  text-transform:uppercase;
  font-size:.78rem;
}
.lede{font-size:1.08rem; max-width:54ch}

.cta{display:flex; gap:.7rem; flex-wrap:wrap; margin:1.2rem 0 1rem}

.hero__chips{display:flex; gap:.55rem; flex-wrap:wrap; margin:.9rem 0 0}
.chip{
  font-size:.85rem; font-weight:600;
  border:1px solid var(--line);
  background:rgba(255,255,255,.04);
  padding:.45rem .7rem;
  border-radius:999px;
  color:rgba(234,240,255,.92);
}

.note{
  margin-top:1rem;
  border:1px solid var(--line);
  background:rgba(255,255,255,.04);
  border-radius: var(--radius);
  padding:.9rem 1rem;
  color:rgba(234,240,255,.9);
}
.note strong{color:#fff}

.hero__card .card{position:sticky; top:88px}

.section{padding:3rem 0}
.section--alt{
  background: linear-gradient(180deg, rgba(255,255,255,.03), transparent 70%);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.section__head{margin-bottom:1.4rem}
.sub{margin:0; max-width:70ch}

.grid2{display:grid; gap:1.2rem; grid-template-columns: 1fr 1fr}
.panel{
  border:1px solid var(--line);
  background: rgba(255,255,255,.04);
  border-radius: var(--radius2);
  padding:1.2rem 1.2rem;
  box-shadow: var(--shadow);
}
.panel__title{margin:0 0 .55rem 0}

.list{margin:.65rem 0 0; padding-left:1.1rem}
.list li{margin:.5rem 0; color:var(--muted)}
.list strong{color:rgba(234,240,255,.95)}

.cards{
  display:grid; gap:1rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}
.card{
  border:1px solid var(--line);
  background: rgba(255,255,255,.04);
  border-radius: var(--radius2);
  padding:1.15rem 1.15rem;
  box-shadow: var(--shadow);
}
.card__title{font-size:1.1rem; margin-bottom:.55rem}
.small{font-size:.92rem}
.tiny{font-size:.82rem}
.muted{color:rgba(167,180,214,.8)}

.stats{
  display:grid; gap:.65rem;
  margin:1rem 0 0;
}
.stat{
  border:1px solid var(--line);
  border-radius: 16px;
  padding:.75rem .85rem;
  background: rgba(0,0,0,.18);
}
.stat__k{font-size:.75rem; text-transform:uppercase; letter-spacing:.09em; color:rgba(234,240,255,.75); font-weight:700}
.stat__v{font-weight:800; color:rgba(234,240,255,.98); margin-top:.2rem}

.sep{border:0; border-top:1px solid var(--line); margin:1.1rem 0}

.callout{
  margin-top:1.2rem;
  border:1px solid rgba(142,226,255,.25);
  background: linear-gradient(135deg, rgba(110,168,255,.12), rgba(142,226,255,.08));
  border-radius: var(--radius2);
  padding:1rem 1.1rem;
}
.callout p{margin:0; color:rgba(234,240,255,.9)}
.callout strong{color:#fff}

.quotes{
  display:grid; gap:1rem;
  grid-template-columns: repeat(3, minmax(0,1fr));
}
.quote{
  border:1px solid var(--line);
  background: rgba(255,255,255,.04);
  border-radius: var(--radius2);
  padding:1.2rem 1.2rem;
  box-shadow: var(--shadow);
}
.quote p{margin:0; color:rgba(234,240,255,.92); font-weight:700; line-height:1.35}

.accordion details{
  border:1px solid var(--line);
  background: rgba(255,255,255,.04);
  border-radius: var(--radius2);
  padding: .9rem 1rem;
  margin-bottom:.7rem;
}
.accordion summary{
  cursor:pointer;
  font-weight:800;
  color:rgba(234,240,255,.96);
  list-style:none;
}
.accordion summary::-webkit-details-marker{display:none}
.acc__content{padding-top:.75rem}
.acc__content p{margin:.2rem 0 .3rem}

.linkgrid{
  display:grid; gap:.7rem;
  grid-template-columns: repeat(2, minmax(0,1fr));
}
.linkcard{
  border:1px solid var(--line);
  background: rgba(0,0,0,.18);
  border-radius: 18px;
  padding:.9rem .95rem;
}
.linkcard__k{display:block; font-weight:900}
.linkcard__v{display:block; margin-top:.2rem; color:rgba(167,180,214,.85); font-size:.9rem}

.form{margin-top:.7rem; display:grid; gap:.75rem}
.field{display:grid; gap:.35rem}
.field span{font-weight:800; font-size:.9rem; color:rgba(234,240,255,.92)}
.field input{
  width:100%;
  padding:.85rem .95rem;
  border-radius: 16px;
  border:1px solid var(--line);
  background: rgba(0,0,0,.18);
  color:var(--text);
  outline:none;
}
.field input:focus{
  border-color: rgba(110,168,255,.55);
  box-shadow: 0 0 0 4px rgba(110,168,255,.12);
}

.sticky{
  position:fixed; left:0; right:0; bottom:0;
  border-top:1px solid var(--line);
  background: rgba(7,10,18,.6);
  backdrop-filter: blur(14px);
  padding:.65rem 0;
  z-index:30;
}
.sticky__inner{display:flex; align-items:center; justify-content:space-between; gap:1rem}
.sticky__text{font-weight:800; color:rgba(234,240,255,.9)}

.footer{padding:2rem 0 4.5rem}
.footer__inner{display:flex; align-items:flex-start; justify-content:space-between; gap:1rem; border-top:1px solid var(--line); padding-top:1.2rem}
.footer__links{display:flex; gap:.9rem; flex-wrap:wrap}
.footer__links a{color:rgba(234,240,255,.85); font-weight:700}
.footer__links a:hover{color:#fff}

@media (max-width: 920px){
  .hero__grid{grid-template-columns:1fr}
  .hero__card .card{position:relative; top:auto}
  .grid2{grid-template-columns:1fr}
  .cards{grid-template-columns:1fr}
  .quotes{grid-template-columns:1fr}
}

@media (max-width: 760px){
  .navbtn{display:inline-flex}
  .nav{
    position:absolute; left:1rem; right:1rem; top:72px;
    display:none;
    flex-direction:column;
    align-items:stretch;
    gap:.55rem;
    padding:.75rem;
    border:1px solid var(--line);
    border-radius: var(--radius2);
    background: rgba(7,10,18,.85);
    box-shadow: var(--shadow);
  }
  .nav[data-open="true"]{display:flex}
  .nav a{padding:.65rem .75rem; border-radius:14px; background:rgba(255,255,255,.04); border:1px solid var(--line)}
  .nav a.btn{background: linear-gradient(135deg, rgba(110,168,255,.95), rgba(142,226,255,.7)); color:#081126; border-color:rgba(255,255,255,.08)}
}
/* Document layout */
.doclayout{
  display:grid;
  gap:1.2rem;
  grid-template-columns: .52fr 1fr;
  align-items:start;
}

.doctoc{position:sticky; top:88px}
.toc{display:grid; gap:.4rem; margin-top:.4rem}
.toc a{
  padding:.55rem .65rem;
  border-radius:14px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.04);
  font-weight:800;
  color:rgba(234,240,255,.92);
}
.toc a:hover{background:rgba(255,255,255,.06)}

.docmeta{display:flex; gap:.5rem; flex-wrap:wrap; margin-bottom:.9rem}
.badge{
  font-size:.78rem;
  font-weight:900;
  letter-spacing:-.01em;
  border:1px solid var(--line);
  background:rgba(0,0,0,.18);
  color:rgba(234,240,255,.9);
  padding:.35rem .55rem;
  border-radius:999px;
}

@media (max-width: 920px){
  .doclayout{grid-template-columns:1fr}
  .doctoc{position:relative; top:auto}
}