:root{--night:#0b1422;--night2:#101e31;--night3:#172b43;--ink:#15243a;--muted:#65758a;--line:#dfe6ed;--paper:#f4f6f8;--blue:#8bb6df;--max:1180px}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:86px}body{margin:0;color:var(--ink);background:#fff;font:15px/1.7 Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif}a{color:inherit;text-decoration:none}a:hover{color:#477ba9}.wrap{width:min(var(--max),91%);margin:auto}.skip{position:absolute;left:-9999px}.skip:focus{left:12px;top:12px;z-index:99;background:#fff;padding:12px}
.header{height:78px;position:sticky;top:0;z-index:30;background:#fff;border-bottom:1px solid var(--line)}.nav{height:100%;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{display:flex;align-items:center;gap:11px;font-size:14px;font-weight:850;letter-spacing:1.8px}.brand-mark{display:grid;place-items:center;width:37px;height:37px;background:var(--night);color:white;font:800 19px Georgia,serif}.brand small{display:block;font:9px ui-monospace,monospace;color:#8290a2;letter-spacing:2.2px}.navlinks{display:flex;align-items:center;gap:24px;font-size:12px;color:#53647a}.nav-cta{border:1px solid var(--line);padding:9px 14px;font-size:11px;font-weight:700}
.hero{background:var(--night);color:white;position:relative;overflow:hidden}.hero:before{content:"";position:absolute;inset:0;background:linear-gradient(115deg,transparent 45%,#142944 100%);pointer-events:none}.hero-grid{position:relative;display:grid;grid-template-columns:1.05fr .95fr;align-items:center;gap:36px;min-height:525px;padding:60px 0 48px}.eyebrow{font:10px ui-monospace,monospace;letter-spacing:1.8px;color:#91b9df;text-transform:uppercase}.eyebrow i{display:inline-block;width:7px;height:7px;border-radius:50%;background:#78c5a1;margin-right:9px}.hero h1{font-size:clamp(43px,5.8vw,72px);line-height:1.04;letter-spacing:-3.5px;margin:25px 0 20px;font-weight:800}.hero h1 span{color:#8db8e1}.hero-copy>p{max-width:585px;color:#bac8d8;font-size:15px}.actions{display:flex;align-items:center;gap:24px;margin-top:30px}.btn{display:inline-flex;align-items:center;gap:18px;padding:13px 18px;background:#dceafa;color:#142d49;font-size:12px;font-weight:800}.btn:hover{background:#fff;color:#142d49}.plain-link{font-size:12px;color:#d3dfeb}.hero-art{height:390px;position:relative;display:grid;place-items:center}.globe{width:160px;height:160px;border-radius:50%;position:relative;z-index:2;background:radial-gradient(circle at 32% 28%,#d6e8f7 0,#91b6d7 22%,#426b91 53%,#172d49 78%);box-shadow:0 0 85px #5d91c34c,inset -25px -18px 35px #0b1422}.globe:after{content:"";position:absolute;inset:12px 35px;border:1px solid #e1f0ff55;border-radius:50%;transform:rotate(35deg)}.orbit{position:absolute;width:260px;height:260px;border:1px solid #9bbfe033;border-radius:50%;transform:scaleY(.43) rotate(-25deg)}.orbit.o2{width:365px;height:365px;transform:scaleY(.45) rotate(53deg)}.orbit.o3{width:460px;height:460px;transform:scaleY(.4) rotate(-65deg)}.node{position:absolute;width:8px;height:8px;border-radius:50%;background:#b8d8f4;box-shadow:0 0 16px #a9d1f4}.node.n1{top:75px;right:90px}.node.n2{bottom:80px;left:95px}.node.n3{top:45%;left:25px}.art-label{position:absolute;color:#94abc4;font:9px ui-monospace,monospace;letter-spacing:1.2px}.art-label.a{top:20px;right:0}.art-label.b{bottom:25px;left:0}.art-coord{position:absolute;right:0;bottom:100px;color:#6f89a5;font:9px/1.8 ui-monospace,monospace}.hero-bottom{position:relative;border-top:1px solid #ffffff24;padding:17px 0 20px;display:flex;justify-content:space-between;color:#8499b2;font:9px ui-monospace,monospace;letter-spacing:1.3px}
.proof{background:#eef2f6;border-bottom:1px solid var(--line)}.proof-grid{display:grid;grid-template-columns:repeat(4,1fr);padding:25px 0}.proof-item{padding:0 23px;border-right:1px solid #d9e1e9}.proof-item:first-child{padding-left:0}.proof-item:last-child{border:0}.proof-item strong{display:block;font-size:26px;line-height:1.3;letter-spacing:-1px}.proof-item span{font:9px ui-monospace,monospace;letter-spacing:1px;color:#748499}
.section{padding:88px 0}.section-head{display:flex;justify-content:space-between;align-items:end;gap:35px;margin-bottom:34px}.kicker{font:10px ui-monospace,monospace;letter-spacing:1.8px;color:#6689ad;text-transform:uppercase}.section h2,.page-title{font-size:clamp(32px,4vw,44px);line-height:1.13;letter-spacing:-1.8px;margin:12px 0}.section-head>p{max-width:465px;color:var(--muted);font-size:13px}.topic-grid{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--line)}.topic{padding:23px 21px;min-height:260px;border-right:1px solid var(--line);transition:background .2s}.topic:last-child{border:0}.topic:hover{background:#f5f8fb}.topic-no{font:9px ui-monospace,monospace;letter-spacing:1px;color:#8291a4}.topic-symbol{font-size:30px;color:#527da5;margin:25px 0 8px}.topic h3{font-size:16px;line-height:1.4;margin:5px 0 8px}.topic p{font-size:12px;color:var(--muted);margin:0 0 15px}.topic a,.read{font-size:11px;font-weight:800;color:#4779a6}
.dark-band{background:var(--night2);color:#fff;padding:82px 0}.dark-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:65px;align-items:center}.dark-grid h2{font-size:clamp(34px,4vw,48px);line-height:1.13;letter-spacing:-1.8px;margin:20px 0}.dark-grid h2 span{color:#8db8e1}.dark-grid>div:first-child>p{font-size:13px;color:#b3c2d3;max-width:400px}.terminal{background:#091320;border:1px solid #34465d;border-radius:5px;overflow:hidden;font:11px/2 ui-monospace,monospace}.terminal-head,.terminal-foot{padding:10px 15px;border-bottom:1px solid #2b3d53;color:#91a7bf;font-size:9px;letter-spacing:.8px}.dots{display:inline-flex;gap:5px;margin-right:12px}.dots i{width:7px;height:7px;border-radius:50%;background:#d17b78}.dots i:nth-child(2){background:#d2b06b}.dots i:nth-child(3){background:#72ae8b}.terminal-body{padding:20px;color:#d2deea}.terminal-body .prompt{color:#91c7a5}.terminal-body .dim{color:#8498af}.terminal-body .good{color:#a2d5ac}.terminal-foot{border:0;border-top:1px solid #2b3d53;color:#778ca5}.terminal-foot span{float:right}
.steps{background:#f3f6f9}.steps-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:17px}.step{background:white;border:1px solid var(--line);padding:25px}.step-no{font:10px ui-monospace,monospace;color:#6789ac}.step h3{font-size:17px;margin:18px 0 8px}.step p{font-size:12px;color:var(--muted);margin:0}
.article-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.article{background:white;border:1px solid var(--line)}.article-visual{height:145px;display:grid;place-items:center;color:#dceafa;background:linear-gradient(135deg,#172d48,#5b83a8);font:700 16px ui-monospace,monospace;letter-spacing:2px}.article:nth-child(2) .article-visual{background:linear-gradient(135deg,#263b4b,#7994a1)}.article:nth-child(3) .article-visual{background:linear-gradient(135deg,#252f49,#707ca4)}.article-body{padding:21px}.meta{font:9px ui-monospace,monospace;color:#6686a7;letter-spacing:1px}.article h3{font-size:16px;line-height:1.4;margin:10px 0}.article p{font-size:12px;color:var(--muted);min-height:57px}
.resource{background:#eaf0f6;padding:70px 0}.resource-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:60px;align-items:center}.resource-grid p{font-size:13px;color:var(--muted)}.resource-links a{display:flex;align-items:center;gap:18px;padding:17px 0;border-bottom:1px solid #ccd7e2}.resource-links .num{font:10px ui-monospace,monospace;color:#6687a8}.resource-links b,.resource-links small{display:block}.resource-links b{font-size:13px}.resource-links small{font-size:10px;color:var(--muted)}.resource-links strong{margin-left:auto;color:#527ba3}
.faq-grid{display:grid;grid-template-columns:.7fr 1.3fr;gap:65px}.faq-grid>div:first-child p{font-size:13px;color:var(--muted)}.faq details{border-bottom:1px solid var(--line);padding:17px 0}.faq summary{cursor:pointer;list-style:none;font-size:13px;font-weight:750;display:flex;justify-content:space-between}.faq summary::-webkit-details-marker{display:none}.faq summary:after{content:"+";font-size:18px;color:#6486a8}.faq details[open] summary:after{content:"−"}.faq details p{font-size:12px;color:var(--muted)}
.closing{background:var(--night2);color:white;text-align:center;padding:72px 0}.closing h2{font-size:clamp(32px,4vw,46px);line-height:1.15;letter-spacing:-1.7px}.closing h2 span{color:#8db8e1}.closing p{font-size:13px;color:#b3c2d3}
footer{background:#091321;color:#fff;padding:48px 0 20px}.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:30px}.footer-grid p,.footer-grid a{font-size:11px;color:#9bacc0}.footer-grid>div:first-child p{max-width:260px}.footer-grid h4{font:9px ui-monospace,monospace;letter-spacing:1.5px;color:#a9c0d8}.footer-grid>div:not(:first-child) a{display:block;margin:9px 0}.footer-bottom{border-top:1px solid #ffffff20;margin-top:35px;padding-top:17px;display:flex;justify-content:space-between;gap:14px;color:#8295aa;font:9px ui-monospace,monospace;letter-spacing:1px}
.page-hero{background:#eaf0f6;padding:62px 0}.page-hero p{max-width:720px;color:var(--muted)}.prose{max-width:850px}.prose h2{font-size:24px;margin-top:36px}.prose h3{font-size:18px;margin-top:27px}.prose p,.prose li{font-size:14px;color:#53647a}.prose pre{background:#101d31;color:#d9e7f5;padding:18px;overflow:auto;font:12px/1.7 ui-monospace,monospace}.prose code{background:#edf1f5;padding:2px 5px}.prose pre code{background:none;padding:0}.notice{border-left:3px solid #638db6;background:#edf3f8;padding:15px 18px;color:#52647b;font-size:13px}
@media(max-width:900px){.hero-grid{grid-template-columns:1fr}.hero-art{height:290px}.topic-grid{grid-template-columns:repeat(2,1fr)}.topic:nth-child(2){border-right:0}.topic:nth-child(-n+2){border-bottom:1px solid var(--line)}.dark-grid,.resource-grid,.faq-grid{grid-template-columns:1fr;gap:35px}.nav-cta{display:none}}
@media(max-width:620px){.header{height:auto;position:relative}.nav{padding:13px 0;align-items:flex-start;flex-direction:column;gap:12px}.navlinks{width:100%;overflow-x:auto;white-space:nowrap;gap:19px;padding-bottom:5px}.hero-grid{padding:55px 0 35px}.hero h1{font-size:44px;letter-spacing:-2px}.hero-art{height:225px}.globe{width:112px;height:112px}.hero-bottom{font-size:8px}.proof-grid{grid-template-columns:repeat(2,1fr);gap:19px}.proof-item{border:0;padding:0 10px}.proof-item:first-child{padding-left:10px}.proof-item strong{font-size:23px}.section{padding:62px 0}.section-head{display:block}.section-head>p{margin-top:14px}.topic-grid,.steps-grid,.article-grid{grid-template-columns:1fr}.topic{border-right:0;border-bottom:1px solid var(--line);min-height:0}.topic:last-child{border-bottom:0}.topic-symbol{margin:12px 0 4px}.dark-band{padding:60px 0}.dark-grid h2{font-size:36px}.resource{padding:55px 0}.footer-grid{grid-template-columns:1fr 1fr}.footer-grid>div:first-child{grid-column:1/-1}.footer-bottom{flex-wrap:wrap;font-size:8px}}