:root{
  --bg:#07111f;--bg2:#0b1829;--panel:#10223a;--text:#eef7ff;--muted:#adc1d5;
  --line:rgba(184,215,241,.18);--accent:#65d8ff;--accent2:#9c8eff;--good:#75e2b8;
  --warn:#ffd479;--max:1160px;--radius:22px;--shadow:0 24px 65px rgba(0,0,0,.3)
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;color:var(--text);
  background:
    radial-gradient(circle at 88% 5%,rgba(101,216,255,.13),transparent 32%),
    radial-gradient(circle at 8% 18%,rgba(156,142,255,.12),transparent 29%),
    linear-gradient(180deg,var(--bg),#091726 48%,var(--bg));
  font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  line-height:1.66
}
a{color:var(--accent);text-underline-offset:3px}
a:hover{color:#c0f2ff}
.shell{width:min(calc(100% - 32px),var(--max));margin:auto}
.skip{position:absolute;left:-9999px;top:8px;padding:10px 14px;background:white;color:#07111f;border-radius:10px;z-index:99}
.skip:focus{left:12px}
.header{position:sticky;top:0;z-index:20;background:rgba(7,17,31,.91);backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}
.nav{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:22px}
.brand{color:var(--text);font-weight:900;text-decoration:none;letter-spacing:-.02em}
.brand span{color:var(--accent)}
.links{display:flex;flex-wrap:wrap;justify-content:flex-end;gap:18px}
.links a{color:var(--muted);font-weight:750;text-decoration:none;font-size:.92rem}
.links a:hover,.links a[aria-current="page"]{color:var(--text)}
main{padding:58px 0 86px}
.hero{padding:24px 0 44px}
.eyebrow{margin:0 0 12px;color:var(--accent);font-size:.8rem;font-weight:900;letter-spacing:.14em;text-transform:uppercase}
h1,h2,h3{line-height:1.14;letter-spacing:-.035em}
h1{margin:0;font-size:clamp(2.7rem,6vw,5rem)}
h2{margin:0 0 16px;font-size:clamp(1.8rem,4vw,3rem)}
h3{margin:0 0 10px;font-size:1.18rem}
.lede{max-width:860px;color:var(--muted);font-size:clamp(1.06rem,2vw,1.26rem);margin:21px 0 0}
.actions,.card-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:10px 17px;border:1px solid var(--line);border-radius:14px;color:var(--text);background:rgba(255,255,255,.035);font-weight:850;text-decoration:none}
.btn.primary{color:#03131e;background:linear-gradient(135deg,var(--accent),#98e9ff);border-color:transparent}
.btn:hover{transform:translateY(-1px);text-decoration:none}
.section{padding:46px 0}
.intro{max-width:840px;margin-bottom:24px}
.intro p{color:var(--muted);font-size:1.06rem}
.grid2,.grid3,.grid4{display:grid;gap:18px}
.grid2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid4{grid-template-columns:repeat(4,minmax(0,1fr))}
.card,.metric,.panel,.step{
  border:1px solid var(--line);border-radius:var(--radius);
  background:linear-gradient(180deg,rgba(17,36,59,.95),rgba(11,25,43,.96));
  box-shadow:var(--shadow)
}
.card,.panel,.step{padding:25px}
.metric{padding:22px}
.metric b{display:block;color:var(--accent);font-size:2rem;line-height:1}
.metric span{display:block;margin-top:10px;color:var(--muted)}
.card p,.panel p,.step p{color:var(--muted)}
.tags{display:flex;flex-wrap:wrap;gap:8px;padding:0;margin:17px 0 0;list-style:none}
.tags li{padding:6px 10px;border:1px solid var(--line);border-radius:999px;color:#ccdeed;background:rgba(255,255,255,.035);font-size:.85rem}
.callout{margin-top:20px;padding:20px 22px;border-left:4px solid var(--accent);border-radius:0 17px 17px 0;background:rgba(101,216,255,.07);color:#dceefa}
.callout.warn{border-left-color:var(--warn);background:rgba(255,212,121,.07)}
.kicker{color:var(--accent);font-size:.76rem;font-weight:900;text-transform:uppercase;letter-spacing:.11em}
.meta{display:flex;flex-wrap:wrap;gap:10px;margin:18px 0 0}
.pill{padding:7px 11px;border:1px solid var(--line);border-radius:999px;background:rgba(255,255,255,.035);color:#d7e6f3;font-size:.86rem;font-weight:750}
.list-clean{margin:14px 0 0;padding-left:20px;color:#d4e2ef}
.list-clean li+li{margin-top:8px}
.evidence{display:grid;gap:14px}
.evidence-row{display:grid;grid-template-columns:minmax(180px,.34fr) 1fr;gap:18px;padding:18px;border:1px solid var(--line);border-radius:16px;background:rgba(255,255,255,.025)}
.evidence-row strong{color:var(--text)}
.evidence-row div:last-child{color:var(--muted)}
.steps{display:grid;gap:16px;counter-reset:step}
.step{position:relative;padding-left:70px}
.step:before{counter-increment:step;content:counter(step);position:absolute;left:22px;top:22px;width:32px;height:32px;display:grid;place-items:center;border-radius:50%;background:rgba(101,216,255,.14);color:var(--accent);font-weight:900;border:1px solid var(--line)}
.breadcrumb{font-size:.92rem;color:var(--muted);margin-bottom:22px}
.breadcrumb a{color:var(--muted);text-decoration:none}
.breadcrumb a:hover{color:var(--text)}
.footer{border-top:1px solid var(--line);padding:30px 0 45px;color:var(--muted)}
.footer-row{display:flex;justify-content:space-between;align-items:center;gap:20px}
.footer-links{display:flex;flex-wrap:wrap;gap:16px}
.footer-links a{color:var(--muted);text-decoration:none}
.note{font-size:.91rem;color:var(--muted)}
.codebox{overflow:auto;padding:18px;border:1px solid var(--line);border-radius:16px;background:#050d17;color:#cfe7f5;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.9rem}
@media(max-width:920px){
  .grid4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid3,.grid2{grid-template-columns:1fr}
  .evidence-row{grid-template-columns:1fr}
}
@media(max-width:680px){
  .nav{align-items:flex-start;padding:17px 0}
  .links{gap:10px 14px}
  .grid4{grid-template-columns:1fr}
  main{padding-top:34px}
  .footer-row{align-items:flex-start;flex-direction:column}
  .step{padding-left:25px;padding-top:64px}
  .step:before{left:24px}
}
.links .nav-cta{padding:7px 11px;border:1px solid rgba(101,216,255,.45);border-radius:10px;color:var(--text);background:rgba(101,216,255,.08)}
.links .nav-cta:hover{background:rgba(101,216,255,.15)}