:root{
  --navy-950:#020614;
  --navy-900:#030a1c;
  --navy-850:#071326;
  --navy-800:#0a1a33;
  --ink:#071226;
  --ink-2:#12223d;
  --blue:#0a63d8;
  --blue-2:#1788ff;
  --cyan:#35d9ff;
  --cyan-soft:#dff8ff;
  --purple:#7256df;
  --purple-soft:#f2efff;
  --white:#ffffff;
  --surface:#f7faff;
  --surface-2:#eef5fd;
  --line:#d7e5f4;
  --line-strong:#bfd4ea;
  --muted:#526681;
  --muted-light:#aec3dc;
  --success:#11875d;
  --max:1200px;
  --radius:22px;
  --radius-sm:14px;
  --shadow:0 18px 48px rgba(17,42,78,.10);
  --shadow-soft:0 8px 28px rgba(17,42,78,.08);
  --serif:Georgia,"Times New Roman",serif;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--white);
  color:var(--ink);
  font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility
}
img{max-width:100%;height:auto}
a{color:var(--blue);text-underline-offset:.18em}
a:hover{color:#084ea9}
.skip{
  position:absolute;left:-9999px;top:10px;
  background:#fff;color:#000;padding:10px 14px;
  z-index:9999;border-radius:10px
}
.skip:focus{left:10px}
.wrap{width:min(calc(100% - 40px),var(--max));margin:auto}

/* Parent brand strip */
.parent-bar{
  border-bottom:1px solid rgba(53,217,255,.13);
  background:var(--navy-950);
  color:#d9e8f8
}
.parent-inner{
  min-height:42px;
  display:flex;align-items:center;gap:12px;
  font-size:.82rem;color:#91aac5
}
.parent-inner>a:first-child{
  display:inline-flex;align-items:center;gap:7px;
  text-decoration:none;color:#fff;letter-spacing:.08em
}
.parent-inner img{
  border-radius:50%;
  box-shadow:0 0 22px rgba(53,217,255,.22)
}
.parent-link{
  margin-left:auto;text-decoration:none;
  color:var(--cyan);font-weight:750
}

/* Main navigation */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(3,10,28,.96);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid rgba(53,217,255,.12)
}
.nav{
  display:flex;align-items:center;justify-content:space-between;
  gap:22px;min-height:76px
}
.brand{
  font-weight:950;letter-spacing:.07em;text-decoration:none;
  color:#fff;font-size:1.03rem
}
.brand span{color:var(--cyan)}
.brand small{
  display:block;font-size:.58rem;font-weight:750;
  color:#95acc6;letter-spacing:.12em
}
.nav-links{display:flex;align-items:center;gap:20px}
.nav-links a{
  position:relative;
  font-size:.88rem;color:#dbe7f5;text-decoration:none;font-weight:760
}
.nav-links a:after{
  content:"";position:absolute;left:0;right:100%;bottom:-8px;height:2px;
  background:linear-gradient(90deg,var(--cyan),var(--purple));
  transition:right .18s ease
}
.nav-links a:hover{color:#fff}
.nav-links a:hover:after{right:0}
.nav-toggle{
  display:none;background:#0b1930;color:#fff;
  border:1px solid rgba(53,217,255,.25);
  border-radius:11px;padding:9px 12px;font:inherit
}

/* Breadcrumbs */
.breadcrumbs{
  padding:24px 0 0;font-size:.86rem;color:#7589a3
}
.breadcrumbs a{color:#4a6689;text-decoration:none}
.breadcrumbs a:hover{color:var(--blue)}

/* Hero */
.hero{
  position:relative;
  padding:78px 0 64px;
  overflow:hidden;
  color:#fff;
  background:
    radial-gradient(circle at 78% 15%,rgba(23,136,255,.24),transparent 27%),
    radial-gradient(circle at 94% 38%,rgba(114,86,223,.19),transparent 25%),
    linear-gradient(120deg,var(--navy-950) 0%,var(--navy-900) 38%,#082845 100%)
}
.hero:before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.34;
  background-image:
    linear-gradient(rgba(53,217,255,.035) 1px,transparent 1px),
    linear-gradient(90deg,rgba(53,217,255,.035) 1px,transparent 1px);
  background-size:44px 44px;
  mask-image:linear-gradient(to right,transparent,black 52%,black)
}
.hero-grid{
  position:relative;z-index:1;
  display:grid;grid-template-columns:minmax(0,1.12fr) minmax(340px,.88fr);
  gap:54px;align-items:center
}
.kicker{
  color:var(--cyan);
  font-size:.77rem;font-weight:900;letter-spacing:.14em;text-transform:uppercase
}
.hero h1{
  color:#fff;
  font-size:clamp(2.8rem,6.2vw,5.6rem);
  line-height:.95;letter-spacing:-.052em;
  margin:.16em 0 .30em;max-width:980px
}
.hero p{
  font-size:clamp(1.05rem,1.9vw,1.28rem);
  color:#c2d3e7;max-width:790px
}
.hero strong{color:#fff}
.hero a:not(.btn){color:#bdefff}

/* Existing research graphics remain secondary, not the visual identity */
.hero-art{
  position:relative;margin:0;padding:14px;
  background:rgba(255,255,255,.055);
  border:1px solid rgba(97,211,255,.25);
  border-radius:30px;
  box-shadow:0 24px 80px rgba(0,0,0,.28);
  overflow:hidden
}
.hero-art:before{
  content:"";position:absolute;inset:0;border-radius:30px;
  background:linear-gradient(135deg,rgba(53,217,255,.09),transparent 45%,rgba(114,86,223,.10));
  pointer-events:none
}
.hero-art img{
  position:relative;display:block;border-radius:20px;
  background:#071326;width:100%
}
.hero-art figcaption{
  position:relative;
  padding:10px 8px 2px;color:#aac0d7;font-size:.76rem
}

/* Buttons */
.actions{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:27px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:50px;padding:12px 20px;
  background:#fff;border:1px solid #fff;border-radius:999px;
  color:var(--ink);text-decoration:none;font-weight:900;
  box-shadow:0 10px 30px rgba(0,0,0,.15);
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,border-color .18s ease
}
.btn:hover{
  transform:translateY(-1px);
  color:var(--ink);
  background:#eefaff;
  box-shadow:0 14px 38px rgba(0,0,0,.20)
}
.btn.secondary{
  background:transparent;color:#fff;
  border-color:rgba(53,217,255,.72);
  box-shadow:none
}
.btn.secondary:hover{
  color:#fff;background:rgba(53,217,255,.08);
  border-color:var(--cyan)
}
.btn.full{width:100%}
.text-link{font-weight:850;text-decoration:none}

/* Light content system */
main section:not(.hero){
  padding:68px 0;
  background:var(--white)
}
main section:not(.hero)+section:not(.hero){
  border-top:1px solid #edf2f8
}
.section-head{max-width:870px;margin-bottom:32px}
.section-head h2,
.content h2,
.split h2,
.cta h2,
.page-intro h1{
  color:var(--ink);
  font-size:clamp(2rem,4vw,3.35rem);
  line-height:1.04;letter-spacing:-.038em;
  margin:.15em 0 .35em
}
.section-head p,.content p,.content li,.split p{
  color:var(--muted)
}

/* Trust strip */
.trust-strip{
  display:grid;grid-template-columns:repeat(5,1fr);
  border:1px solid var(--line);
  border-radius:18px;overflow:hidden;
  background:#fff;
  margin-bottom:60px;
  box-shadow:var(--shadow-soft)
}
.trust-strip span{
  padding:17px 10px;text-align:center;
  color:var(--ink-2);font-size:.88rem;font-weight:800;
  border-right:1px solid var(--line)
}
.trust-strip span:last-child{border:0}

/* Cards */
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.grid.two{grid-template-columns:repeat(2,1fr)}
.card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:26px;
  box-shadow:var(--shadow-soft)
}
.card h2,.card h3{margin-top:0;color:var(--ink)}
.card p,.card li{color:var(--muted)}
.feature{min-height:220px}
.num{
  font-family:var(--serif);
  font-size:3rem;color:rgba(10,99,216,.22)
}

/* Alternating light section */
.split-section{
  border-top:1px solid var(--line)!important;
  border-bottom:1px solid var(--line)!important;
  background:
    radial-gradient(circle at 85% 15%,rgba(53,217,255,.12),transparent 25%),
    linear-gradient(180deg,#f7fbff,#eef5fd)!important
}
.split{
  display:grid;grid-template-columns:1.1fr .9fr;
  gap:44px;align-items:center
}
.spotlight{
  border-color:#bfd6ee;
  box-shadow:0 16px 48px rgba(10,99,216,.08)
}

/* Proof */
.proof-card{
  display:flex;align-items:center;justify-content:space-between;gap:30px;
  padding:28px;border:1px solid var(--line);
  border-radius:22px;background:#fff;
  box-shadow:var(--shadow-soft)
}
.proof-card h3{margin:0;color:var(--ink)}
.proof-card p{margin:.3em 0 0;color:var(--muted)}

/* Direct answer */
.answer{
  max-width:1160px;margin:34px auto 12px;
  width:min(calc(100% - 40px),var(--max));
  padding:23px 25px;
  border-left:4px solid var(--blue);
  background:linear-gradient(90deg,#eef7ff,#f8fbff);
  border:1px solid #d4e6f7;border-left-width:4px;
  border-radius:0 16px 16px 0;
  color:#36516f;
  box-shadow:var(--shadow-soft)
}
.answer strong{color:var(--ink)}

/* Topic navigation */
.link-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.topic-link{
  display:grid;grid-template-columns:54px 1fr;
  grid-template-rows:auto auto;column-gap:15px;
  padding:21px;border-radius:17px;
  border:1px solid var(--line);
  background:#fff;
  text-decoration:none;
  box-shadow:0 6px 22px rgba(17,42,78,.05);
  transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease
}
.topic-link span{
  grid-row:1/3;font-family:var(--serif);
  font-size:2.2rem;color:rgba(10,99,216,.30)
}
.topic-link strong{color:var(--ink);font-size:1.06rem}
.topic-link em{color:#6c819b;font-style:normal;font-size:.9rem}
.topic-link:hover{
  transform:translateY(-1px);
  border-color:#9fc6ee;
  box-shadow:0 12px 30px rgba(10,99,216,.09)
}

/* Research / source panels */
.research-banner,.sources{
  padding:24px;
  border:1px solid var(--line);
  background:#f7fbff;
  border-radius:18px;
  color:#49627e
}
.research-banner strong,.sources h2{color:var(--ink)}
.content{max-width:930px}
.content h2{margin-bottom:20px}

/* Comparison / cost blocks */
.cost-grid{
  display:grid;grid-template-columns:repeat(2,1fr);gap:14px
}
.cost-grid>div{
  padding:20px;border:1px solid var(--line);
  border-radius:15px;background:#fff;
  box-shadow:0 5px 18px rgba(17,42,78,.05)
}
.cost-grid strong{display:block;color:var(--ink);margin-bottom:5px}
.cost-grid span{color:var(--muted)}
.checklist{padding-left:1.2rem}
.checklist li{margin:.57rem 0}

/* Steps */
.steps{display:grid;gap:14px;counter-reset:s}
.step{
  counter-increment:s;
  display:grid;grid-template-columns:50px 1fr;gap:15px;
  padding:20px;border:1px solid var(--line);
  border-radius:17px;background:#fff;
  box-shadow:0 5px 18px rgba(17,42,78,.05)
}
.step:before{
  content:counter(s);display:grid;place-items:center;
  width:42px;height:42px;border-radius:50%;
  background:linear-gradient(135deg,var(--blue),var(--cyan));
  color:#fff;font-weight:950
}
.step h3{margin:0;color:var(--ink)}
.step p{margin:.3em 0 0;color:var(--muted)}

/* Tables */
.table-wrap{
  overflow:auto;border-radius:16px;border:1px solid var(--line);
  box-shadow:var(--shadow-soft)
}
table{width:100%;border-collapse:collapse;background:#fff;min-width:680px}
th,td{
  padding:15px;text-align:left;vertical-align:top;
  border-bottom:1px solid var(--line)
}
th{background:#eef5fd;color:var(--ink)}
td{color:#4f6680}
.sources h2{font-size:1.35rem;margin-top:0}
.sources a{color:var(--blue)}

/* CTA */
.cta{
  display:flex;align-items:center;justify-content:space-between;gap:30px;
  padding:32px;border:1px solid rgba(53,217,255,.22);
  border-radius:24px;
  background:
    radial-gradient(circle at 90% 10%,rgba(114,86,223,.20),transparent 28%),
    linear-gradient(120deg,var(--navy-950),#09274a);
  color:#fff;
  box-shadow:0 20px 58px rgba(3,10,28,.18)
}
.cta h2{color:#fff;margin-bottom:.15em}
.cta p{color:#c2d3e7}
.cta .kicker{color:var(--cyan)}
.cta .btn{background:#fff;border-color:#fff;color:var(--ink)}
.cta .btn.secondary{
  background:transparent;color:#fff;border-color:rgba(53,217,255,.72)
}

/* Intro and hierarchy */
.page-intro{padding:60px 0 30px;background:#fff}
.page-intro p{color:var(--muted)}
.hierarchy{display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:1.25rem;font-weight:850}

/* Footer */
.footer{
  border-top:1px solid rgba(53,217,255,.12);
  padding:48px 0 58px;
  background:var(--navy-950);
  color:#91aac5;margin-top:62px
}
.footer-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:50px}
.footer-brand{display:flex;gap:13px;align-items:flex-start}
.footer-brand img{
  border-radius:50%;
  box-shadow:0 0 25px rgba(53,217,255,.18)
}
.footer-brand strong,.footer h3{color:#fff}
.footer-brand p{margin:.2em 0;color:#a9bdd4}
.footer a{color:#b7eefe}
.footer .small{color:#8fa6c0}
.small{font-size:.88rem}
.page-intro+.hero{padding-top:28px}

/* Focus states */
a:focus-visible,button:focus-visible{
  outline:3px solid var(--cyan);
  outline-offset:3px;
  border-radius:8px
}

/* Tablet */
@media(max-width:960px){
  .hero-grid,.split,.grid,.grid.two,.footer-grid,.link-grid,.cost-grid{
    grid-template-columns:1fr
  }
  .hero-art{max-width:680px}
  .trust-strip{grid-template-columns:1fr 1fr}
  .trust-strip span{border-bottom:1px solid var(--line)}
  .nav-toggle{display:inline-flex}
  .nav-links{
    position:absolute;display:none;
    left:20px;right:20px;top:68px;
    flex-direction:column;align-items:stretch;
    padding:14px;background:#071326;
    border:1px solid rgba(53,217,255,.20);
    border-radius:16px;
    box-shadow:0 20px 60px rgba(0,0,0,.35)
  }
  .nav-links.open{display:flex}
  .nav-links a{padding:10px 8px}
  .nav-links a:after{display:none}
  .proof-card,.cta{align-items:flex-start;flex-direction:column}
  .parent-inner span{display:none}
  .hero{padding-top:58px}
  .hero h1,.page-intro h1{font-size:clamp(2.55rem,11vw,4.6rem)}
}

/* Mobile */
@media(max-width:600px){
  .wrap{width:min(calc(100% - 24px),var(--max))}
  .parent-inner{min-height:40px}
  .parent-link{font-size:.74rem}
  .nav{min-height:68px}
  .brand{font-size:.92rem}
  .hero{padding:46px 0 42px}
  .hero h1,.page-intro h1{
    letter-spacing:-.042em;
    font-size:clamp(2.25rem,12vw,3.55rem)
  }
  .hero p{font-size:1.02rem}
  .hero-grid{gap:30px}
  .hero-art{padding:9px;border-radius:22px}
  .hero-art img{border-radius:15px}
  .trust-strip{grid-template-columns:1fr}
  .trust-strip span{border-right:0}
  main section:not(.hero){padding:50px 0}
  .topic-link{grid-template-columns:42px 1fr;padding:16px}
  .card{padding:20px}
  .answer{width:calc(100% - 24px);padding:19px 18px}
  .btn{width:100%;min-height:52px}
  .actions{width:100%}
  .cta{padding:23px}
  .footer{padding-bottom:42px}
}

/* Very small screens */
@media(max-width:380px){
  .wrap{width:min(calc(100% - 18px),var(--max))}
  .parent-link{display:none}
  .hero h1{font-size:2.18rem}
  .brand small{display:none}
}

/* Motion and print */
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .btn,.topic-link,.nav-links a:after{transition:none}
}
@media print{
  .site-header,.parent-bar,.nav-toggle,.actions,.footer{display:none!important}
  .hero{background:#fff!important;color:#000!important;padding:25px 0}
  .hero h1,.hero p{color:#000!important}
  body{color:#000;background:#fff}
  .card,.answer,.sources,.research-banner,.topic-link,.cost-grid>div,.step{box-shadow:none}
}