/* StratosNex: Stratosphere */
:root{
  --purple:#655ab1;
  --purple-d:#3d3480;
  --purple-dd:#221c52;
  --cyan:#2eb4d0;
  --cyan-d:#1a8aa3;
  --lav:#efedfb;
  --mist:#e9f7fa;
  --ink:#1c1a3a;
  --ink-2:#4c4a6b;
  --on-dark:rgba(246,246,255,.93);
  --on-dark-2:rgba(232,232,250,.8);
  --head:"Encode Sans Expanded",system-ui,sans-serif;
  --body:"Merriweather",Georgia,serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:#fff;color:var(--ink);font-family:var(--body);font-weight:300;font-size:17px;line-height:1.8;overflow-x:hidden}
img{display:block;max-width:100%}
a{color:inherit}
h1,h2,h3{font-family:var(--head);line-height:1.12;margin:0 0 .55em;letter-spacing:-.01em}
h2{font-size:clamp(1.8rem,3.4vw,2.7rem);font-weight:700}
h3{font-size:1.15rem;font-weight:700}
p{margin:0 0 1em}
.wrap{width:min(1160px,100% - 40px);margin-inline:auto}
section{scroll-margin-top:80px}

/* header */
.site-header{position:fixed;inset:0 0 auto;z-index:50;transition:background .3s,box-shadow .3s}
.site-header.scrolled{background:rgba(34,28,82,.92);backdrop-filter:blur(10px);box-shadow:0 8px 28px rgba(34,28,82,.3)}
.head-row{display:flex;align-items:center;justify-content:space-between;height:76px}
.brand{display:flex;align-items:center;gap:11px;text-decoration:none;font-family:var(--head);font-weight:700;font-size:1.15rem;color:#fff}
.brand img{width:42px;height:42px;border-radius:50%;background:#fff}
.brand b{color:var(--cyan);font-weight:700}
.primary-nav{display:flex;gap:4px;align-items:center}
.primary-nav a{text-decoration:none;font-family:var(--head);font-weight:500;font-size:.88rem;color:var(--on-dark);padding:8px 14px;border-radius:999px;transition:background .2s,color .2s}
.primary-nav .nav-cta{background:#fff;color:var(--purple-d);margin-left:6px}
.nav-toggle{display:none;width:46px;height:46px;border:1px solid rgba(255,255,255,.3);background:none;border-radius:50%;cursor:pointer;position:relative}
.nav-toggle span{position:absolute;left:13px;right:13px;height:2px;background:#fff;transition:transform .3s}
.nav-toggle span:first-child{top:18px}.nav-toggle span:last-child{top:26px}
.nav-toggle[aria-expanded="true"] span:first-child{transform:translateY(4px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:last-child{transform:translateY(-4px) rotate(-45deg)}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;text-decoration:none;font-family:var(--head);font-weight:600;font-size:.95rem;padding:15px 28px;border-radius:999px;border:2px solid transparent;transition:transform .25s,box-shadow .25s,background .25s,color .25s}
.btn-cyan{background:var(--cyan);color:var(--purple-dd)}
.btn-clear{border-color:rgba(255,255,255,.55);color:#fff}
.btn-purple{background:var(--purple);color:#fff}
.eyebrow{font-family:var(--head);font-weight:700;font-size:.78rem;letter-spacing:.2em;text-transform:uppercase;color:var(--cyan-d);margin-bottom:14px!important}
.eyebrow.light{color:var(--cyan)}

/* hero */
.hero{position:relative;overflow:hidden;min-height:820px;padding:160px 0 220px;color:var(--on-dark);background:linear-gradient(180deg,var(--purple-dd) 0%,var(--purple-d) 38%,var(--purple) 70%,#7d9fd6 100%)}
.sky{position:absolute;inset:0;pointer-events:none}
.star{position:absolute;width:3px;height:3px;border-radius:50%;background:#fff;animation:twinkle 3s ease-in-out infinite}
.st1{left:12%;top:20%}.st2{left:30%;top:12%;animation-delay:1s}.st3{left:62%;top:16%;animation-delay:.5s}.st4{left:88%;top:30%;animation-delay:1.6s}
.balloon{position:absolute;right:12%;top:150px;width:120px;animation:rise 9s ease-in-out infinite;filter:drop-shadow(0 18px 24px rgba(20,14,60,.35))}
@keyframes rise{0%{transform:translateY(120px) rotate(-3deg)}50%{transform:translateY(0) rotate(3deg)}100%{transform:translateY(120px) rotate(-3deg)}}
@keyframes twinkle{50%{opacity:.2}}
.layer-bands{position:absolute;left:0;right:0;bottom:0;height:240px;pointer-events:none}
.band{position:absolute;left:0;width:200%;height:160px;bottom:0}
.b1{bottom:70px;fill:rgba(46,180,208,.28);animation:drift 26s linear infinite}
.b2{bottom:30px;fill:rgba(239,237,251,.45);animation:drift 20s linear infinite reverse}
.b3{bottom:-2px;fill:#fff;animation:drift 34s linear infinite}
@keyframes drift{from{transform:translateX(0)}to{transform:translateX(-50%)}}
.hero-inner{position:relative;z-index:2;max-width:820px}
.pre{font-family:var(--head);font-weight:600;font-size:.82rem;letter-spacing:.2em;text-transform:uppercase;color:var(--cyan)}
.hero h1{color:#fff;font-size:clamp(2.3rem,5.4vw,4.4rem);font-weight:800;margin:18px 0 24px}
.hero h1 span{background:linear-gradient(90deg,#fff,#8fe3f2);-webkit-background-clip:text;background-clip:text;color:transparent}
.lede{font-size:1.1rem;max-width:34em;color:var(--on-dark)}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}

/* mission */
.mission{padding:90px 0 100px;background:#fff}
.mission-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:start}
.mission h2{color:var(--purple-dd)}
.big{font-family:var(--body);font-style:italic;font-size:1.35rem;line-height:1.6;color:var(--purple-d)}
.mission-copy p:not(.big){color:var(--ink-2)}
.bridge{display:grid;grid-template-columns:auto 1fr auto;align-items:end;gap:18px;margin-top:56px}
.bridge svg{width:100%;height:80px;overflow:visible}
.arc-path{stroke-dasharray:700;stroke-dashoffset:700;transition:stroke-dashoffset 1.6s ease .3s}
.bridge.in .arc-path{stroke-dashoffset:0}
.pier{font-family:var(--head);font-weight:700;font-size:.85rem;letter-spacing:.06em;padding:12px 18px;border-radius:12px;background:var(--lav);color:var(--purple-d);white-space:nowrap}
.pier:last-child{background:var(--mist);color:var(--cyan-d)}

/* climb */
.climb{padding:100px 0 110px;background:linear-gradient(180deg,var(--mist),var(--lav))}
.sec-head{max-width:640px;margin-bottom:50px}
.sec-head h2{color:var(--purple-dd)}
.sec-head p:not(.eyebrow){color:var(--ink-2)}
.sec-head.center{text-align:center;margin-inline:auto}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;align-items:start}
.step{position:relative;background:#fff;border-radius:22px;padding:30px 28px;box-shadow:0 12px 30px rgba(61,52,128,.08);border:1px solid #dcd8f4;transition:transform .3s,box-shadow .3s,border-color .3s}
.st-a{margin-top:120px}.st-b{margin-top:60px}
.step h3{color:var(--purple-dd)}
.step p{margin:0;color:var(--ink-2)}
.step-n{display:grid;place-items:center;width:46px;height:46px;border-radius:50%;background:linear-gradient(135deg,var(--purple),var(--cyan));color:#fff;font-family:var(--head);font-weight:800;margin-bottom:18px}
.step::after{content:"";position:absolute;right:-22px;top:30px;width:22px;height:2px;background:repeating-linear-gradient(90deg,var(--purple) 0 4px,transparent 4px 8px)}
.step:last-child::after{display:none}

/* network */
.network{padding:110px 0;background:#fff}
.network-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:60px;align-items:center}
.orbit{position:relative;aspect-ratio:1;max-width:380px;width:100%;margin-inline:auto;border-radius:50%;border:2px dashed #cfcaf0;animation:turn 40s linear infinite}
.orbit::before{content:"";position:absolute;inset:18%;border-radius:50%;border:2px solid var(--mist);background:radial-gradient(circle,var(--mist),#fff 70%)}
.hub{position:absolute;left:50%;top:50%;width:96px;height:96px;margin:-48px 0 0 -48px;border-radius:50%;background:linear-gradient(135deg,var(--purple),var(--cyan));color:#fff;display:grid;place-items:center;font-family:var(--head);font-weight:800;animation:turn 40s linear infinite reverse;box-shadow:0 14px 30px rgba(101,90,177,.35)}
.node{position:absolute;width:22px;height:22px;border-radius:50%;background:var(--cyan);border:4px solid #fff;box-shadow:0 4px 12px rgba(46,180,208,.4)}
.n1{left:50%;top:-11px;margin-left:-11px}.n2{right:4%;top:28%;background:var(--purple)}.n3{right:14%;bottom:8%}.n4{left:10%;bottom:12%;background:var(--purple)}.n5{left:-11px;top:40%}
@keyframes turn{to{transform:rotate(360deg)}}
.network h2{color:var(--purple-dd)}
.network-copy p:not(.eyebrow){color:var(--ink-2)}
.ticks{list-style:none;padding:0;margin:20px 0 0;display:grid;gap:10px}
.ticks li{position:relative;padding:12px 16px 12px 48px;border-radius:12px;background:var(--lav);font-family:var(--head);font-weight:600;font-size:.92rem;color:var(--purple-dd);transition:transform .25s,background .25s}
.ticks li::before{content:"";position:absolute;left:18px;top:50%;width:14px;height:8px;border-left:3px solid var(--cyan-d);border-bottom:3px solid var(--cyan-d);transform:translateY(-70%) rotate(-45deg)}

/* quote */
.quote-band{background:linear-gradient(120deg,var(--purple-d),var(--purple) 60%,var(--cyan-d));padding:100px 0;text-align:center;position:relative;overflow:hidden}
.quote-band::before{content:"";position:absolute;left:-10%;right:-10%;bottom:-60px;height:140px;border-radius:50%;background:rgba(255,255,255,.07)}
.quote-band blockquote{margin:0 auto;max-width:860px;position:relative}
.quote-band p{font-family:var(--body);font-style:italic;font-weight:300;font-size:clamp(1.5rem,3.2vw,2.3rem);line-height:1.45;color:#fff}
.quote-band cite{font-style:normal;font-family:var(--head);font-weight:600;letter-spacing:.18em;text-transform:uppercase;font-size:.78rem;color:var(--on-dark)}

/* faq */
.faq{padding:110px 0;background:var(--lav)}
.faq-list{max-width:800px;margin:0 auto;display:grid;gap:12px}
.faq-item{background:#fff;border-radius:16px;border:1px solid #dcd8f4;transition:transform .25s,box-shadow .25s,border-color .25s}
.faq-q{width:100%;background:none;border:0;text-align:left;cursor:pointer;padding:21px 24px;display:flex;justify-content:space-between;align-items:center;gap:18px;font:600 1rem/1.45 var(--head);color:var(--purple-dd)}
.pm{flex:none;width:26px;height:26px;border-radius:50%;border:2px solid var(--cyan);position:relative;transition:transform .3s,background .3s}
.pm::before,.pm::after{content:"";position:absolute;left:5px;right:5px;top:10px;height:2px;background:var(--cyan-d)}
.pm::after{transform:rotate(90deg);transition:transform .3s}
.faq-item.open .pm{background:var(--cyan)}
.faq-item.open .pm::before,.faq-item.open .pm::after{background:var(--purple-dd)}
.faq-item.open .pm::after{transform:rotate(0)}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .35s}
.faq-a>p{overflow:hidden;margin:0;padding:0 24px;color:var(--ink-2)}
.faq-item.open .faq-a{grid-template-rows:1fr}
.faq-item.open .faq-a>p{padding-bottom:22px}

/* contact */
.contact-sky{background:linear-gradient(0deg,var(--purple-dd),var(--purple-d) 60%,var(--purple));padding:110px 0;position:relative;overflow:hidden}
.contact-sky::before{content:"";position:absolute;inset:auto -10% -80px;height:200px;border-radius:50%;background:radial-gradient(ellipse,rgba(46,180,208,.35),transparent 70%)}
.contact-inner{position:relative;text-align:center;max-width:760px;color:var(--on-dark)}
.contact-inner h2{color:#fff}
.contact-inner p:not(.eyebrow){color:var(--on-dark);font-size:1.08rem}
.contact-actions{display:flex;flex-wrap:wrap;justify-content:center;gap:14px;margin-top:26px}

/* footer */
.site-footer{background:#15113a;color:var(--on-dark-2);padding:30px 0}
.foot-row{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:14px}
.foot-row p{margin:0;font-size:.88rem}
.site-footer .brand{font-size:1rem}
.site-footer .brand img{width:34px;height:34px}

/* reveal */
.js .reveal{opacity:0;transform:translateY(34px);transition:opacity .8s ease,transform .8s ease}
.js .reveal.in{opacity:1;transform:none}

@media (hover:hover) and (pointer:fine){
  .primary-nav a:hover{background:rgba(255,255,255,.14);color:#fff}
  .primary-nav .nav-cta:hover{background:var(--cyan);color:var(--purple-dd)}
  .btn:hover{transform:translateY(-3px);box-shadow:0 14px 28px rgba(20,14,60,.3)}
  .btn-clear:hover{background:#fff;color:var(--purple-d)}
  .step:hover{transform:translateY(-10px);border-color:var(--cyan);box-shadow:0 22px 40px rgba(61,52,128,.16)}
  .ticks li:hover{transform:translateX(8px);background:var(--mist)}
  .pier:hover{transform:translateY(-3px)}
  .faq-item:hover{transform:translateY(-2px);border-color:var(--purple);box-shadow:0 12px 26px rgba(61,52,128,.1)}
  .faq-item:hover .pm{transform:rotate(90deg)}
}

@media (max-width:960px){
  .mission-grid,.network-grid{grid-template-columns:1fr;gap:34px}
  .steps{grid-template-columns:1fr;gap:16px}
  .st-a,.st-b{margin-top:0}
  .st-b{margin-left:24px}.st-c{margin-left:48px}
  .step::after{display:none}
  .orbit{max-width:280px}
}
@media (max-width:820px){
  .nav-toggle{display:block}
  .site-header{background:rgba(34,28,82,.92);backdrop-filter:blur(10px)}
  .primary-nav{display:none;position:absolute;top:76px;left:12px;right:12px;flex-direction:column;align-items:stretch;background:var(--purple-dd);border-radius:18px;padding:10px;box-shadow:0 20px 40px rgba(20,14,60,.4)}
  .primary-nav.open{display:flex}
  .primary-nav a{padding:13px 16px;font-size:.95rem}
  .primary-nav .nav-cta{margin:6px 0 0;text-align:center}
}
@media (max-width:640px){
  body{font-size:16px}
  .wrap{width:min(1160px,100% - 32px)}
  .hero{min-height:0;padding:250px 0 180px}
  .balloon{width:78px;right:auto;left:50%;margin-left:-39px;top:96px;animation-name:rise-sm}
  @keyframes rise-sm{0%,100%{transform:translateY(30px) rotate(-3deg)}50%{transform:translateY(0) rotate(3deg)}}
  .hero h1{font-size:2.05rem}
  .lede{font-size:1rem}
  .hero-actions .btn{flex:1 1 100%}
  .layer-bands{height:170px}
  .b1{bottom:46px}.b2{bottom:18px}
  .mission{padding:60px 0 76px}
  .bridge{grid-template-columns:1fr 1fr;gap:12px}
  .bridge svg{grid-column:1/-1;grid-row:1;height:50px}
  .pier{font-size:.74rem;padding:10px 12px;text-align:center;white-space:normal}
  .climb,.network,.faq,.contact-sky{padding:76px 0}
  .st-b{margin-left:12px}.st-c{margin-left:24px}
  .step{padding:24px 22px}
  .faq-q{padding:18px 18px;font-size:.95rem}
  .faq-a>p{padding:0 18px}
  .contact-actions .btn{width:100%;font-size:.9rem;padding:14px 12px}
  .foot-row{flex-direction:column;align-items:flex-start}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  .arc-path{stroke-dashoffset:0}
  .js .reveal{opacity:1;transform:none}
}