:root{--navy:#10232d;--navy2:#173643;--ice:#e8f3f5;--cyan:#2a8198;--cyan2:#8fc7d3;--paper:#f5f2eb;--white:#fffefb;--ink:#17242b;--muted:#5b6a70;--line:#d7d9d4;--warm:#c66c3b;--max:1180px;--r:10px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font:400 17px/1.62 system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}img,svg{max-width:100%}a{color:inherit}.wrap{width:min(var(--max),calc(100% - 40px));margin:auto}.skip{position:absolute;left:-9999px}.skip:focus{left:12px;top:12px;z-index:99;padding:10px;background:#fff}.mono{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;text-transform:uppercase;letter-spacing:.1em}
.site-header{position:sticky;top:0;z-index:30;background:rgba(245,242,235,.94);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}.header-inner{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:30px}.brand{text-decoration:none;font:700 18px/1 ui-monospace,SFMono-Regular,Menlo,monospace;letter-spacing:.06em}.brand i{color:var(--cyan);font-style:normal}.brand small{display:block;margin-top:6px;color:var(--muted);font-size:8px;letter-spacing:.14em}.nav{display:flex;align-items:center;gap:25px}.nav a{text-decoration:none;font-size:14px;font-weight:650}.nav a:hover,.nav a[aria-current=page]{color:var(--cyan)}.menu{display:none;border:1px solid var(--line);border-radius:5px;background:transparent;padding:9px 11px;font-weight:700}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:47px;padding:0 18px;border:1.5px solid var(--navy);border-radius:5px;background:var(--navy);color:#fff;text-decoration:none;font-weight:750}.btn:hover{background:var(--navy2)}.btn.light{background:#fff;color:var(--navy);border-color:#fff}.btn.ghost{background:transparent;color:var(--navy)}.btn.cyan{background:var(--cyan);border-color:var(--cyan)}
.hero{padding:90px 0 70px;border-bottom:1px solid var(--line);overflow:hidden}.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:72px;align-items:center}.kicker,.eyebrow{display:inline-block;margin-bottom:18px;color:var(--cyan);font:700 10px/1 ui-monospace,SFMono-Regular,Menlo,monospace;text-transform:uppercase;letter-spacing:.12em}.kicker{padding:8px 10px;border:1px solid var(--cyan);border-radius:3px;background:var(--ice)}h1,h2,h3,p{margin-top:0}h1{margin-bottom:26px;font-size:clamp(48px,6.5vw,88px);line-height:.96;letter-spacing:-.058em}h1 em,h2 em{color:var(--cyan);font-style:normal}h2{margin-bottom:20px;font-size:clamp(32px,4vw,55px);line-height:1.07;letter-spacing:-.04em}h3{margin-bottom:10px;font-size:22px;line-height:1.25}.lead{max-width:790px;color:var(--muted);font-size:20px}.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}.trustline{display:flex;gap:16px;flex-wrap:wrap;margin-top:28px;color:var(--muted);font:600 11px/1.4 ui-monospace,SFMono-Regular,Menlo,monospace;text-transform:uppercase}.trustline span:before{content:"✓";margin-right:6px;color:var(--cyan)}
.chain-visual{position:relative;display:grid;gap:16px;margin:0;padding:0;list-style:none}.chain-visual:before{content:"";position:absolute;z-index:0;top:54px;bottom:54px;left:37px;width:3px;background:linear-gradient(var(--cyan),var(--cyan2));border-radius:3px}.chain-step{position:relative;z-index:1;display:grid;grid-template-columns:48px 1fr;gap:16px;align-items:center;padding:20px 22px 20px 14px;border:1px solid var(--line);border-radius:8px;background:var(--white);box-shadow:0 16px 42px rgba(16,35,45,.08)}.chain-step:last-child{border-color:var(--cyan)}.chain-node{display:grid;place-items:center;width:48px;height:48px;border:3px solid var(--paper);border-radius:50%;background:var(--cyan);color:#fff;font:800 13px/1 ui-monospace,SFMono-Regular,Menlo,monospace;box-shadow:0 0 0 2px var(--cyan)}.chain-step:last-child .chain-node{background:var(--navy);box-shadow:0 0 0 2px var(--navy)}.chain-copy b{display:block;color:var(--cyan);font:700 10px/1 ui-monospace,SFMono-Regular,Menlo,monospace;text-transform:uppercase;letter-spacing:.12em}.chain-copy strong{display:block;margin-top:8px;font-size:19px;line-height:1.3}.chain-copy small{display:block;margin-top:9px;color:var(--muted);font:650 10px/1.3 ui-monospace,SFMono-Regular,Menlo,monospace;text-transform:uppercase;letter-spacing:.08em}
.section{padding:76px 0}.section.white{background:var(--white)}.section.dark{background:var(--navy);color:#fff}.section.dark .lead,.section.dark p{color:#c5d1d5}.section-head{display:flex;justify-content:space-between;gap:40px;align-items:end;margin-bottom:34px}.section-head>div{max-width:800px}.text-link{color:var(--cyan);font-weight:750;text-decoration-thickness:1px;text-underline-offset:4px}.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.grid2{display:grid;grid-template-columns:1fr 1fr;gap:20px}.card{display:flex;flex-direction:column;padding:28px;border:1px solid var(--line);border-radius:var(--r);background:var(--white)}.card:hover{border-color:var(--cyan)}.card .tag{margin-bottom:18px;color:var(--cyan);font:700 10px ui-monospace,SFMono-Regular,Menlo,monospace;text-transform:uppercase;letter-spacing:.1em}.card p{color:var(--muted);font-size:15px}.card .text-link{margin-top:auto}.dark .card{border-color:#35505c;background:var(--navy2)}.dark .card p{color:#c5d1d5}.icon{display:grid;place-items:center;width:48px;height:48px;margin-bottom:20px;border-radius:50%;background:var(--ice);color:var(--cyan);font:700 18px ui-monospace,SFMono-Regular,Menlo,monospace}
.factbar{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;margin-top:38px;background:var(--line);border:1px solid var(--line)}.fact{padding:24px;background:var(--paper)}.fact b{display:block;color:var(--cyan);font:700 25px/1 ui-monospace,SFMono-Regular,Menlo,monospace}.fact span{display:block;margin-top:10px;color:var(--muted);font-size:13px}.note{padding:20px 22px;border-left:5px solid var(--warm);background:#f5e9e3;color:var(--ink)}.note b{color:#a74e27}.cta-panel{display:grid;grid-template-columns:1.3fr .7fr;gap:40px;align-items:center;padding:42px;border-radius:var(--r);background:var(--ice);border:1px solid #c6dde2}.cta-panel h2{font-size:clamp(29px,3.5vw,45px)}
.page-hero{padding:70px 0 54px;border-bottom:1px solid var(--line)}.page-hero h1{max-width:980px;font-size:clamp(43px,5.8vw,76px)}.breadcrumbs{margin-bottom:25px;color:var(--muted);font-size:13px}.breadcrumbs a{color:var(--cyan)}.article-layout{display:grid;grid-template-columns:minmax(0,760px) 260px;gap:70px;align-items:start}.article{padding:65px 0}.article h2{margin-top:54px;font-size:36px}.article h3{margin-top:35px}.article p,.article li{color:#34464e}.article ul,.article ol{padding-left:22px}.article li{margin:10px 0}.article .intro{font-size:22px;color:var(--muted)}.article-meta{display:flex;gap:16px;flex-wrap:wrap;margin:25px 0;color:var(--muted);font:600 11px ui-monospace,SFMono-Regular,Menlo,monospace;text-transform:uppercase}.toc{position:sticky;top:104px;margin-top:65px;padding:20px;border:1px solid var(--line);background:var(--white)}.toc b{display:block;margin-bottom:10px;font-size:13px}.toc a{display:block;padding:6px 0;color:var(--muted);font-size:13px}.source-list{margin-top:50px;padding:25px;border-top:1px solid var(--line);background:var(--white)}.source-list h2{margin-top:0;font-size:25px}.source-list li{font-size:14px}.definition{margin:28px 0;padding:28px;border:2px solid var(--cyan);background:var(--ice);font-size:20px}.table-wrap{overflow-x:auto;margin:28px 0}table{width:100%;border-collapse:collapse;background:var(--white);font-size:14px}th,td{padding:14px;text-align:left;vertical-align:top;border:1px solid var(--line)}th{background:var(--ice)}
.people{display:grid;grid-template-columns:320px 1fr;gap:50px;align-items:start}.profile{min-height:330px;padding:28px;display:flex;flex-direction:column;justify-content:end;border-radius:var(--r);background:linear-gradient(145deg,var(--navy2),var(--cyan));color:#fff}.profile b{font-size:25px}.profile span{font:600 11px ui-monospace,SFMono-Regular,Menlo,monospace;text-transform:uppercase}.contact-box{padding:36px;border:1px solid var(--line);border-radius:var(--r);background:var(--white)}.contact-box a.email{display:block;margin:18px 0;font-size:clamp(23px,3vw,38px);font-weight:800;color:var(--cyan);overflow-wrap:anywhere}
.site-footer{padding:54px 0 28px;background:var(--navy);color:#d0dadd}.footer-grid{display:grid;grid-template-columns:1.3fr repeat(3,1fr);gap:45px}.footer-grid h3{color:#fff;font-size:14px}.footer-grid a{display:block;margin:7px 0;color:#b9c7cc;text-decoration:none;font-size:14px}.footer-grid p{color:#b9c7cc;font-size:14px}.footer-bottom{display:flex;justify-content:space-between;gap:30px;margin-top:42px;padding-top:24px;border-top:1px solid #35505c;color:#8fa1a9;font-size:12px}
@media(max-width:900px){.nav{display:none;position:absolute;left:0;right:0;top:76px;padding:20px;flex-direction:column;align-items:stretch;background:var(--paper);border-bottom:1px solid var(--line)}.nav.open{display:flex}.menu{display:block}.hero-grid,.cta-panel,.article-layout,.people{grid-template-columns:1fr}.chain-visual{margin-top:12px}.grid3{grid-template-columns:1fr 1fr}.toc{position:static;margin:0 0 35px;order:-1}.article-layout{display:flex;flex-direction:column}.footer-grid{grid-template-columns:1fr 1fr}.factbar{grid-template-columns:1fr 1fr}}
@media(max-width:620px){.wrap{width:min(var(--max),calc(100% - 24px))}.hero{padding:56px 0}.section{padding:52px 0}.grid3,.grid2,.footer-grid{grid-template-columns:1fr}.section-head{display:block}.section-head .text-link{display:inline-block;margin-top:10px}.factbar{grid-template-columns:1fr}.cta-panel{padding:27px 20px}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:8px}}