:root{--navy:#0b1b36;--ink:#142746;--muted:#5d6f88;--blue:#256bd9;--gold:#ffd17b;--warm:#f8bb4d;--border:#dce5f0;--light:#f4f7fc}
*,*::before,*::after{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:88px}body{margin:0;background:#fff;color:var(--ink);font:16px/1.65 system-ui,-apple-system,'Segoe UI',Arial,sans-serif;-webkit-font-smoothing:antialiased}a{color:inherit}a:focus-visible,summary:focus-visible{outline:3px solid #66a8ff;outline-offset:4px;border-radius:3px}img{max-width:100%}.shell{width:min(1200px,calc(100% - 68px));margin-inline:auto}.skip{position:absolute;top:-100px;left:20px;padding:12px 20px;background:#fff;color:#061d48;z-index:150}.skip:focus{top:8px}.site-header{position:sticky;top:0;z-index:100;background:#fff;border-bottom:1px solid #e6ebf2;box-shadow:0 3px 14px rgba(10,27,57,.055)}.nav-shell{min-height:85px;display:flex;align-items:center;justify-content:space-between;gap:25px}.brand{display:flex;align-items:center;gap:13px;text-decoration:none;color:#0b1c3b;font-size:23px;font-weight:850;white-space:nowrap;letter-spacing:-.035em}.brand img{object-fit:contain;width:49px;height:49px}.desktop-nav{display:flex;align-items:center;gap:25px}.desktop-nav a{text-decoration:none;font-size:13px;font-weight:700;white-space:nowrap}.desktop-nav>a:not(.button):hover{color:#2969c4}.youtube-link{display:inline-flex;gap:4px;align-items:center}.button{display:inline-flex;gap:13px;align-items:center;justify-content:center;border-radius:11px;text-decoration:none!important;padding:14px 23px;font-weight:800;line-height:1.25;transition:background .15s,transform .15s;border:1px solid transparent;text-align:center}.button:hover{transform:translateY(-2px)}.button-small{padding:12px 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span{display:inline-flex;gap:7px;align-items:center;font-size:13px;color:#e2eafa;font-weight:720}.hero-stem b{font-weight:900;font-size:19px}.stem-s{color:#70b8ff}.stem-t{color:#ffca70}.stem-e{color:#82e0c2}.stem-m{color:#ff9d9f}.hero-note{font-size:13px;letter-spacing:.015em;color:#d4e4ff;white-space:nowrap}.proof-strip{background:#f6f8fc;border-bottom:1px solid var(--border)}.proof-list{min-height:69px;display:flex;align-items:center;justify-content:center;gap:22px 42px;flex-wrap:wrap;padding:15px 0}.proof-list span{display:inline-flex;align-items:center;gap:9px;color:#415271;font-weight:740;font-size:13px}.proof-list i{width:20px;height:20px;display:inline-flex;align-items:center;justify-content:center;border-radius:50%;font-style:normal;font-size:12px;color:#0d775b;background:#e0f7ee}.section{padding:102px 0}.section-tag{color:#4668ad;font-size:12px;letter-spacing:.17em;font-weight:850;text-transform:uppercase}.section-heading{max-width:760px}.section h2{font-size:clamp(33px,3.4vw,49px);line-height:1.13;letter-spacing:-.048em;margin:12px 0 18px;color:#132744}.section-heading p,.world-intro p{font-size:17px;line-height:1.73;color:var(--muted);margin:0}.feature-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin-top:38px}.feature{padding:29px 28px 33px;border:1px solid var(--border);border-radius:22px;background:#fff;position:relative;min-height:240px}.feature-num{font-size:11px;color:#99acc4;letter-spacing:.12em;font-weight:850}.feature-symbol{font-size:35px;line-height:1.3;margin:16px 0 7px;font-weight:800;color:#3074bb}.feature:nth-child(2) .feature-symbol{color:#e4a52a}.feature:nth-child(3) .feature-symbol{color:#23987e}.feature h3{margin:2px 0 10px;font-size:19px;letter-spacing:-.025em}.feature p{font-size:14px;line-height:1.7;color:var(--muted);margin:0}.learning-section{background:#f6f8fc}.course-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin-top:35px}.course-card{border:1px solid #dce4ee;border-radius:22px;background:white;padding:29px 26px;display:flex;flex-direction:column;align-items:flex-start;min-height:320px}.course-card.current{border-color:#96addb;box-shadow:0 14px 38px #243a6910}.status-pill{font-size:12px;font-weight:800;color:#7f651d;border-radius:99px;background:#fff3d0;padding:5px 12px}.status-pill.available{background:#e1f6ed;color:#136a50}.course-card h3{font-size:27px;letter-spacing:-.035em;margin:17px 0 8px}.course-card p{font-size:15px;color:var(--muted);line-height:1.7;margin:0}.course-meta{margin-top:auto;padding-top:24px;font-size:12px;color:#687a94}.text-cta{display:inline-flex;gap:10px;align-items:center;text-decoration:none;font-weight:820;color:#225bb0;font-size:14px;margin-top:19px}.text-cta:hover{text-decoration:underline;text-underline-offset:4px}.worlds-section{background:#fff}.world-intro{display:flex;align-items:end;justify-content:space-between;gap:20px}.world-intro>div{max-width:675px}.world-intro .text-cta{margin-bottom:14px;white-space:nowrap}.world-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:17px;margin-top:34px}.world-card{border-radius:22px;overflow:hidden;background:#0c1f3f;color:#fff;position:relative;min-height:360px}.world-card img{width:100%;height:360px;object-fit:cover;display:block;filter:saturate(.96)}.world-card:after{content:'';position:absolute;inset:30% 0 0;background:linear-gradient(transparent,#07152df0);pointer-events:none}.world-card>div{position:absolute;z-index:1;bottom:23px;left:24px;right:22px}.world-card span{color:#a9e5ff;letter-spacing:.12em;font-weight:850;font-size:11px}.world-card h3{font-size:22px;margin:5px 0;letter-spacing:-.025em}.world-card p{font-size:13px;color:#e0eaf9;margin:0;line-height:1.5}.art-note{color:#718097;font-size:12px;margin-top:17px}.about-section{background:#f3f6fc}.about-grid{display:grid;grid-template-columns:.88fr 1.12fr;gap:80px;align-items:center}.about-illustration{height:380px;border:1px solid #d8e4f5;border-radius:32px;background:radial-gradient(circle at 55% 48%,#d4e0fc,#edf3ff 42%,#dde8fd 75%);position:relative;display:flex;align-items:center;justify-content:center;overflow:hidden}.about-illustration img{position:relative;z-index:2;width:225px;height:225px;object-fit:contain;filter:drop-shadow(0 24px 22px #1b337233)}.orbit{position:absolute;width:310px;height:150px;border:1px solid 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.beta-small{font-size:12px;color:#7a8498}.contact-section{padding-top:0}.contact-panel{background:#11274b;border-radius:30px;color:white;padding:39px 46px;display:flex;gap:25px;align-items:center;justify-content:space-between}.contact-panel>div{max-width:740px}.contact-panel .section-tag{color:#e7bc65}.contact-panel h2{color:white;font-size:29px;line-height:1.24}.contact-panel p{color:#c6d7ed;max-width:630px}.contact-panel .button{flex-shrink:0}.site-footer{background:#071426;color:#e4edf8;padding-top:68px}.footer-grid{display:grid;grid-template-columns:1.4fr repeat(3,minmax(0,.8fr));gap:36px 52px;padding-bottom:62px}.footer-logo{display:flex;align-items:center;gap:12px;text-decoration:none;color:#fff;font-size:23px;letter-spacing:-.04em;font-weight:850}.footer-logo img{width:53px;height:53px;object-fit:contain}.footer-brand p{font-size:14px;line-height:1.65;color:#aabbd2;margin:10px 0}.site-footer h3{font-size:14px;color:#f7cf83;margin:9px 0 18px}.site-footer 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@media(max-width:1050px){.desktop-nav{gap:13px}.desktop-nav a{font-size:12px}.hero-inner{min-height:580px}.about-grid{gap:40px}.footer-grid{gap:30px 25px}}
@media(max-width:850px){.desktop-nav{display:none}.mobile-nav{display:block;position:relative}.mobile-nav summary{list-style:none;border:1px solid #d5dfed;border-radius:10px;padding:9px 14px;font-size:14px;font-weight:750;cursor:pointer}.mobile-nav summary::-webkit-details-marker{display:none}.mobile-nav summary span{margin-left:8px}.mobile-nav nav{position:absolute;right:0;top:48px;background:#fff;border:1px solid #d7e0ec;border-radius:13px;box-shadow:0 13px 40px #11274622;width:235px;display:flex;flex-direction:column;padding:10px;z-index:30}.mobile-nav nav a{padding:11px;border-radius:7px;text-decoration:none;font-weight:700;font-size:14px}.mobile-nav nav a:hover{background:#edf2fa}.hero-backdrop{background-position:58% center}.hero-inner{min-height:540px}.hero-copy{max-width:580px}.hero-stem{gap:10px 18px}.hero-note{display:none}.course-grid,.world-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.world-card:last-child{display:none}.about-grid{grid-template-columns:1fr}.about-illustration{height:300px;max-width:520px}.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:30px}.contact-panel{flex-wrap:wrap}.world-intro{align-items:flex-start;flex-direction:column}}
@media(max-width:620px){.shell{width:calc(100% - 38px)}.nav-shell{min-height:71px}.brand{font-size:20px}.brand img{width:40px;height:40px}.hero-backdrop{background-image:linear-gradient(90deg,rgba(5,18,44,.86),rgba(5,19,45,.6)),url('/assets/hero-cosmos-20261028.webp');background-position:66% center}.hero-inner{min-height:535px;padding-top:64px;padding-bottom:55px;align-items:flex-start}.hero h1{font-size:clamp(42px,10vw,62px)}.hero-copy>p{font-size:16px}.hero-copy .hero-current{font-size:14px}.hero-actions{align-items:flex-start;gap:17px;flex-direction:column}.hero-base{padding-bottom:21px}.hero-stem{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));width:100%;gap:11px}.hero-stem span{font-size:12px}.hero-stem b{font-size:17px}.proof-list{gap:12px 14px;justify-content:flex-start}.proof-list span{font-size:11px}.section{padding:66px 0}.section h2{font-size:35px}.feature-grid,.course-grid,.world-grid{grid-template-columns:1fr}.feature{min-height:auto}.course-card{min-height:300px}.world-card:last-child{display:block}.world-card img{height:300px}.world-card{min-height:300px}.about-illustration{height:265px}.about-illustration img{width:160px;height:160px}.orbit{width:250px}.beta-panel{grid-template-columns:1fr;padding:28px 23px}.beta-copy h2{font-size:31px}.beta-icon{height:64px;width:64px;border-radius:17px}.beta-icon svg{width:35px}.beta-actions{align-items:stretch;flex-direction:column}.contact-panel{padding:28px 24px;border-radius:24px}.contact-panel h2{font-size:27px}.contact-panel .button{width:100%}.footer-grid{grid-template-columns:1fr 1fr;gap:26px 20px}.footer-grid>.footer-brand{grid-column:span 2}.footer-bottom{flex-direction:column;gap:3px}.simple{padding:38px 21px 80px}}
@media(max-width:385px){.hero h1{font-size:40px}.footer-grid{grid-template-columns:1fr}.footer-grid>.footer-brand{grid-column:auto}.brand span{font-size:18px}.beta-actions .button{font-size:13px;padding:14px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.button{transition:none}.button:hover{transform:none}}

@media (max-width:620px){html{scroll-padding-top:75px}}