:root{--ink:#071633;--navy:#06183c;--blue:#155ce7;--cyan:#20c8e6;--paper:#f5f8ff;--line:#dce6f5;--white:#fff}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);background:#fff;font-family:Manrope,Arial,sans-serif;overflow-x:hidden}a{color:inherit;text-decoration:none}.progress{position:fixed;z-index:100;top:0;left:0;height:3px;width:0;background:linear-gradient(90deg,#1ce4ff,#286cff);transition:width .1s}.nav-shell{height:78px;padding:0 max(4vw,24px);display:flex;align-items:center;justify-content:space-between;position:absolute;top:0;z-index:20;width:100%;color:#fff;border-bottom:1px solid #ffffff24}.brand{font:700 1.35rem Space Grotesk;letter-spacing:.12em;display:flex;align-items:center}.brand-i{font:italic 800 2.2rem Manrope;color:#ff264d;margin-right:2px}.nav-shell nav{display:flex;gap:34px;font-size:.86rem;color:#c8d6f1}.nav-shell nav a:hover{color:#fff}.nav-cta{padding:12px 18px;border:1px solid #ffffff3d;border-radius:30px;font-weight:700;font-size:.82rem}.menu{display:none;background:transparent;color:#fff;border:0;font-size:1.5rem}.hero{min-height:820px;background:radial-gradient(circle at 73% 43%,#164594 0,#08265b 29%,#06183c 54%,#04102b 100%);color:#fff;position:relative;display:grid;grid-template-columns:1.05fr .95fr;align-items:center;padding:130px max(6vw,40px) 70px;overflow:hidden}.hero:after{content:"";position:absolute;inset:0;background-image:linear-gradient(#ffffff09 1px,transparent 1px),linear-gradient(90deg,#ffffff09 1px,transparent 1px);background-size:70px 70px;mask-image:linear-gradient(to left,#000,transparent 72%)}.hero-copy{position:relative;z-index:2;max-width:750px}.eyebrow,.section-label{font-size:.73rem;font-weight:800;letter-spacing:.18em;color:#2765dd}.eyebrow{color:#7fcbff}.eyebrow span{display:inline-block;width:30px;height:1px;background:#2eccef;vertical-align:middle;margin-right:10px}.hero h1{font:600 clamp(3.5rem,6.4vw,7.3rem)/.92 Space Grotesk;margin:35px 0 30px;letter-spacing:-.055em}.hero h1 em{font-style:normal;color:#77d8ff}.lede{font-size:1.12rem;line-height:1.8;color:#bdcae1;max-width:650px}.hero-actions{display:flex;gap:14px;margin:36px 0 50px}.button{display:inline-flex;gap:30px;align-items:center;padding:16px 22px;border-radius:5px;font-size:.84rem;font-weight:800}.primary{background:#1b68f1}.ghost{border:1px solid #ffffff36}.hero-proof{display:flex;gap:38px;border-top:1px solid #ffffff25;padding-top:26px}.hero-proof div{display:grid}.hero-proof strong{font:600 1.65rem Space Grotesk}.hero-proof span{font-size:.7rem;color:#8fa6c8;margin-top:5px}.hero-orbit{position:relative;z-index:3;aspect-ratio:1;max-width:670px;width:100%;justify-self:center}.orbit-ring{position:absolute;border:1px solid #3baef957;border-radius:50%;inset:12%}.ring-2{inset:24%;border-style:dashed;animation:spin 35s linear infinite}.ring-3{inset:35%;box-shadow:0 0 80px #1488ff66;border-color:#4ce1ff}.core{position:absolute;inset:38%;border-radius:50%;display:flex;flex-direction:column;align-items:center;justify-content:center;background:radial-gradient(circle at 35% 30%,#197af5,#061d4d 65%);box-shadow:0 0 60px #1a89ff88,0 0 0 10px #1b65c52e;text-align:center}.core small{font-size:.65rem;letter-spacing:.16em}.core strong{font:700 clamp(3rem,6vw,5.5rem)/.8 Space Grotesk;color:#a9ecff;text-shadow:0 0 20px #25bfff}.core span{font-size:.55rem;letter-spacing:.28em;margin-top:12px}.satellite{position:absolute;width:84px;height:84px;border-radius:50%;background:#0b316e;border:1px solid #47d4ff77;display:grid;place-content:center;text-align:center;box-shadow:0 12px 30px #0005}.satellite b{font-size:.62rem;color:#54d8ff}.satellite span{font-size:.72rem;font-weight:700}.sat-1{top:5%;left:43%}.sat-2{right:5%;top:43%}.sat-3{bottom:5%;left:43%}.sat-4{left:5%;top:43%}.aurora{position:absolute;border-radius:50%;filter:blur(100px);opacity:.35}.a1{width:300px;height:300px;background:#196bff;left:-100px;top:20%}.a2{width:250px;height:250px;background:#00d8ff;right:5%;bottom:-140px}@keyframes spin{to{transform:rotate(360deg)}}.manifesto{padding:130px max(7vw,40px);text-align:center;background:#fff}.manifesto h2,.section-head h2,.stakeholders h2,.tech h2,.about h2{font:600 clamp(2.4rem,4.6vw,5rem)/1.05 Space Grotesk;letter-spacing:-.045em;margin:24px 0}.manifesto h2 span,.flagship h2 span,.about h2 span,.cta h2 span{color:#47719f}.wide-copy{max-width:820px;margin:38px auto 0;font-size:1.13rem;line-height:1.9;color:#5a6b84}.ecosystem{padding:110px max(5vw,30px);background:var(--paper)}.section-head{display:flex;justify-content:space-between;align-items:end;gap:50px;margin-bottom:55px}.section-head>p{max-width:530px;line-height:1.75;color:#627087}.section-head h2{font-size:clamp(2.3rem,4vw,4.5rem);margin-bottom:0}.ecosystem-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.eco-card{padding:38px 30px 34px;background:#fff;border:1px solid #e4ebf6;min-height:450px;position:relative;overflow:hidden;transition:.3s}.eco-card:hover{transform:translateY(-7px);box-shadow:0 22px 45px #163b7014}.eco-card:before{content:"";position:absolute;top:0;left:0;width:100%;height:4px;background:var(--accent)}.eco-card .num{position:absolute;right:25px;top:24px;font:600 .75rem Space Grotesk;color:#91a0b9}.eco-card .icon{font-size:2rem;color:var(--accent);margin:20px 0 65px}.eco-card h3{font:600 1.35rem Space Grotesk}.eco-card p{font-size:.9rem;line-height:1.75;color:#637187}.eco-card ul{padding:0;list-style:none;margin-top:25px}.eco-card li{font-size:.78rem;font-weight:700;padding:10px 0;border-top:1px solid #edf1f7}.cobalt{--accent:#155ce7}.violet{--accent:#7a50ec}.teal{--accent:#0daeb3}.amber{--accent:#ec8c17}.flagship{padding:100px max(7vw,40px);display:grid;grid-template-columns:1fr .82fr;gap:8vw;background:#071b42;color:#fff;align-items:center}.flagship h2,.cta h2{font:600 clamp(3rem,5vw,5.5rem)/1.02 Space Grotesk;letter-spacing:-.05em;margin:25px 0}.flagship-copy>p:not(.section-label){color:#aabbd3;line-height:1.8}.section-label.light{color:#58d8ff}.feature-list{margin-top:40px}.feature-list>div{display:grid;grid-template-columns:45px 1fr;gap:15px;padding:18px 0;border-top:1px solid #ffffff1e}.feature-list b{color:#54cff3;font-size:.7rem}.feature-list span{font-size:.83rem;color:#9eacc2}.feature-list strong{display:block;color:#fff;font-size:.95rem;margin-bottom:4px}.poster{margin:0;position:relative}.poster img{width:100%;display:block;border-radius:3px;box-shadow:0 30px 70px #0008}.poster figcaption{font-size:.7rem;color:#8da3c3;margin-top:12px;text-align:right}.stakeholders,.tech{padding:110px max(7vw,40px)}.tabs{display:flex;border-bottom:1px solid var(--line)}.tabs button{padding:18px 30px;border:0;background:none;color:#8190a5;font:700 .8rem Manrope;border-bottom:3px solid transparent;cursor:pointer}.tabs button.active{color:#135bdc;border-color:#135bdc}.tab-panel{margin-top:32px;background:linear-gradient(120deg,#eff6ff,#f8fbff);padding:55px;display:grid;grid-template-columns:1fr 1fr;gap:80px}.panel-kicker{font-size:.68rem;color:#1761df;font-weight:800;letter-spacing:.15em}.tab-panel h3{font:600 2.1rem Space Grotesk;margin:16px 0}.tab-panel p{color:#60718a;line-height:1.8}.outcomes{display:grid;grid-template-columns:1fr 1fr;gap:12px;align-content:center}.outcomes span{background:#fff;padding:22px;font-size:.78rem;font-weight:700;border:1px solid #e1eaf6}.tech{background:#f5f8fc}.tech-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:40px}.tech-row span{border:1px solid #cedaec;background:#fff;padding:12px 16px;font-size:.68rem;font-weight:800;color:#315076}.blueprint{position:relative;margin:0;max-height:690px;overflow:hidden;border:1px solid #cfdaeb}.blueprint img{width:100%;display:block}.blueprint:after{content:"";position:absolute;inset:auto 0 0;height:160px;background:linear-gradient(transparent,#f5f8fc)}.blueprint button{position:absolute;z-index:2;bottom:25px;left:50%;transform:translateX(-50%);background:#071b42;color:#fff;border:0;padding:15px 22px;font:700 .75rem Manrope;cursor:pointer}.roadmap{padding:110px max(7vw,40px);background:#071b42;color:#fff}.roadmap .section-head>p{color:#9daec6}.timeline{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid #ffffff30;margin-top:70px}.timeline article{padding:35px 30px 20px 0;position:relative}.timeline article:before{content:"";position:absolute;width:9px;height:9px;border-radius:50%;background:#44d8f4;top:-5px;left:0;box-shadow:0 0 0 6px #44d8f425}.timeline span{font:600 1.9rem Space Grotesk;color:#5fd9f0}.timeline h3{font:600 1.1rem Space Grotesk;margin-top:35px}.timeline p{font-size:.78rem;color:#91a4c0;line-height:1.7;max-width:220px}.about{padding:130px max(7vw,40px);display:grid;grid-template-columns:1fr 1fr;gap:9vw}.about h2{font-size:clamp(2.8rem,4.6vw,5rem)}.about-copy>p{font-size:1rem;line-height:1.9;color:#586a82}.credentials{display:grid;grid-template-columns:1fr 1fr;margin-top:35px}.credentials span{padding:18px 0;border-top:1px solid var(--line);font-size:.76rem;font-weight:800}.cta{padding:120px 30px;text-align:center;background:linear-gradient(135deg,#0b5ae0,#09378c);color:#fff}.cta h2 span{color:#90e5ff}.cta>p:not(.section-label){color:#c1d6f4;max-width:650px;margin:0 auto 35px;line-height:1.8}.white{background:#fff;color:#0b377d}footer{padding:35px max(5vw,30px);background:#030c20;color:#fff;display:flex;align-items:center;justify-content:space-between;gap:30px}footer p,footer>span{font-size:.7rem;color:#7589a8}dialog{border:0;padding:45px 20px 20px;width:min(95vw,1500px);background:#071329}dialog::backdrop{background:#020817e8}dialog img{width:100%;display:block}dialog button{position:absolute;right:15px;top:5px;border:0;background:none;color:#fff;font-size:2rem;cursor:pointer}.reveal{opacity:0;transform:translateY(25px);transition:opacity .75s ease,transform .75s ease}.reveal.visible{opacity:1;transform:none}@media(max-width:1000px){.nav-shell nav,.nav-cta{display:none}.menu{display:block}.hero{grid-template-columns:1fr;padding-top:140px}.hero-orbit{max-width:520px;margin-top:50px}.ecosystem-grid{grid-template-columns:1fr 1fr}.flagship{grid-template-columns:1fr}.poster{max-width:650px}.section-head{align-items:start;flex-direction:column}.timeline{grid-template-columns:1fr 1fr}.about{grid-template-columns:1fr}.tab-panel{gap:30px}}@media(max-width:640px){.hero{min-height:auto;padding:120px 22px 70px}.hero h1{font-size:3.35rem}.hero-actions{flex-direction:column;align-items:start}.hero-proof{gap:20px;flex-wrap:wrap}.satellite{width:65px;height:65px}.manifesto,.ecosystem,.flagship,.stakeholders,.tech,.roadmap,.about{padding:80px 22px}.ecosystem-grid,.timeline,.tab-panel,.outcomes,.credentials{grid-template-columns:1fr}.eco-card{min-height:380px}.eco-card .icon{margin-bottom:35px}.tabs{overflow-x:auto}.tabs button{padding:16px}.tab-panel{padding:28px}.timeline article{border-bottom:1px solid #ffffff1c}.about{gap:25px}footer{flex-direction:column;align-items:start}}
/* ISTUDY Development voice demo */
.development{padding:110px max(7vw,40px);background:#fff}.voice-demo-card{background:linear-gradient(135deg,#071b42,#0a3e8c);color:#fff;padding:55px;display:grid;grid-template-columns:1fr .8fr;gap:7vw;align-items:center}.voice-demo-card>div>span{font-size:.65rem;color:#60e0f5;font-weight:800;letter-spacing:.15em}.voice-demo-card h3{font:600 clamp(2.3rem,4vw,4.2rem)/1.05 Space Grotesk;margin:18px 0}.voice-demo-card p{color:#b8c9e0}.voice-demo-card ul{padding:0;list-style:none;display:grid;grid-template-columns:1fr 1fr;gap:8px;margin:30px 0}.voice-demo-card li{font-size:.76rem;padding:12px 0;border-top:1px solid #ffffff22}.voice-demo-button{background:#fff;color:#0a3b84}.showcase-actions{display:flex;align-items:center;flex-wrap:wrap;gap:20px}.demo-link{font-size:.78rem;font-weight:800;color:#83e8f7;border-bottom:1px solid #83e8f777;padding:8px 0}.demo-link:hover{color:#fff;border-color:#fff}.voice-preview{text-align:center;background:#ffffff0b;border:1px solid #5bcff347;padding:45px;border-radius:15px}.showcase-status{display:inline-flex;align-items:center;gap:7px;background:#55e1b51c;border:1px solid #55e1b55c;color:#83f1cf;border-radius:30px;padding:7px 11px;margin-bottom:25px;font-size:.61rem;font-weight:800;letter-spacing:.14em}.showcase-status:before{content:"";width:7px;height:7px;border-radius:50%;background:#55e1b5;box-shadow:0 0 12px #55e1b5}.voice-orb{width:105px;height:105px;margin:0 auto 24px;border-radius:50%;display:grid;place-items:center;background:radial-gradient(circle at 35% 30%,#3ee5ff,#1769e8 55%,#071b42);box-shadow:0 0 0 13px #4ddcf016,0 0 50px #28bde866;font:700 2rem Space Grotesk}.voice-preview h4{font:600 1.5rem Space Grotesk;margin:12px}.voice-preview p{font-size:.77rem;line-height:1.7}.wave{height:45px;display:flex;justify-content:center;align-items:center;gap:5px;margin-top:20px}.wave i{display:block;width:4px;height:12px;background:#56dcf1;border-radius:4px;animation:wave 1s ease-in-out infinite}.wave i:nth-child(2),.wave i:nth-child(6){animation-delay:.15s}.wave i:nth-child(3),.wave i:nth-child(5){animation-delay:.3s}.wave i:nth-child(4){animation-delay:.45s}@keyframes wave{50%{height:38px}}@media(max-width:1000px){.voice-demo-card{grid-template-columns:1fr}}@media(max-width:640px){.development{padding:80px 22px}.voice-demo-card{padding:30px 22px}.voice-demo-card ul{grid-template-columns:1fr}.voice-preview{padding:32px 18px}.showcase-actions{align-items:flex-start;flex-direction:column}}