:root{
  --bg:#050d12;--bg2:#08151c;--surface:#0b1a22;--line:rgba(214,236,228,.10);--line2:rgba(214,236,228,.18);
  --text:#e9f0ed;--muted:#9fb1ac;--green:#70d39b;--green-d:#4fb37c;--teal:#024d50;--slate:#4c6971;
  --sans:"Geist",system-ui,-apple-system,"Segoe UI",sans-serif;--mono:"Geist Mono",ui-monospace,Menlo,monospace;
  --wrap:1240px;--r:8px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--text);font:400 16px/1.6 var(--sans);overflow-x:hidden}
img,svg{max-width:100%;display:block}
a{color:inherit}
:focus-visible{outline:2px solid var(--green);outline-offset:3px}
.skip{position:absolute;left:-999px;top:8px;background:var(--green);color:#03140c;padding:8px 12px;z-index:100}
.skip:focus{left:16px}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 32px}
h1,h2,h3,h4{font-weight:500;letter-spacing:-.02em;line-height:1.12;margin:0}
p{margin:0 0 1em}
.muted{color:var(--muted)}
.g{color:var(--green)}
.num{font-family:var(--mono);font-feature-settings:"tnum"}

/* nav (Modal: logo left, centred links, light action right) */
.nav{position:sticky;top:0;z-index:50;background:rgba(5,13,18,.94);border-bottom:1px solid var(--line)}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;height:68px;gap:24px}
.nav .logo img{height:30px;width:auto}
.nav ul{display:flex;gap:34px;list-style:none;margin:0;padding:0}
.nav ul a{text-decoration:none;color:#c4d1cd;font-size:15px}
.nav ul a:hover,.nav ul a[aria-current]{color:var(--text)}
.nav ul a[aria-current]{text-decoration:underline;text-decoration-color:var(--green);text-underline-offset:8px}
.btn{display:inline-block;background:var(--text);color:#06120d;text-decoration:none;font-weight:500;font-size:15px;padding:10px 18px;border-radius:var(--r);border:0;cursor:pointer;font-family:inherit}
.btn:hover{background:var(--green)}
.btn-g{background:var(--green)}
.btn-g:hover{background:var(--text)}
.menu-t{display:none;background:none;border:1px solid var(--line2);color:var(--text);border-radius:6px;padding:7px 12px;font:inherit;font-size:14px}

/* hero (Modal: centred title with green phrase, one CTA, dotted object below) */
.hero{text-align:center;padding:84px 0 0;position:relative}
.hero h1{font-size:clamp(38px,5.4vw,68px);max-width:15ch;margin:0 auto}
.hero .lead{font-size:19px;color:#c6d3cf;max-width:60ch;margin:22px auto 30px;line-height:1.5}
.lattice{width:100%;height:clamp(300px,42vw,520px);margin-top:28px;display:block}
.hero-cap{font-size:13px;color:var(--muted);margin:-8px 0 0}
.backers{border-top:1px solid var(--line);margin-top:40px}
.backers .wrap{display:flex;align-items:center;gap:36px;padding-top:24px;padding-bottom:24px}
.backers p{margin:0;font-size:14px;color:var(--muted);flex:0 0 190px;border-right:1px solid var(--line2);padding-right:24px;line-height:1.4}
.backers p b{color:var(--text);font-weight:500}
.backers ul{display:flex;flex-wrap:wrap;gap:12px 34px;list-style:none;margin:0;padding:0;font-size:17px;font-weight:500;color:#b8c7c2;letter-spacing:-.01em}

/* document layout (Modal "Product" tab list -> handbook TOC) */
.doc{display:grid;grid-template-columns:230px minmax(0,1fr);gap:64px;padding-top:96px;padding-bottom:40px}
.toc{position:sticky;top:100px;align-self:start;font-size:14px}
.toc .doc-title{font-weight:500;color:var(--text);margin:0 0 4px}
.toc .rev{color:var(--muted);font-size:13px;margin:0 0 18px}
.toc ol{list-style:none;margin:0;padding:0;border-left:1px solid var(--line2)}
.toc li a{display:flex;gap:10px;padding:7px 0 7px 16px;margin-left:-1px;border-left:2px solid transparent;text-decoration:none;color:var(--muted)}
.toc li a span{font-family:var(--mono);font-size:12px;color:#7f928d;min-width:18px;padding-top:2px}
.toc li a:hover{color:var(--text)}
.toc li a.on{color:var(--text);border-left-color:var(--green)}
.toc li a.on span{color:var(--green)}
.toc .dl{margin-top:24px;display:block;text-align:center}
.toc details summary{display:none}

.sec{padding:0 0 88px;scroll-margin-top:90px}
.sec + .sec{border-top:1px solid var(--line);padding-top:72px}
.sec h2{font-size:clamp(28px,3.2vw,42px);max-width:22ch;margin-bottom:22px}
.sec h2 .sn{font-family:var(--mono);font-size:.5em;color:var(--green);vertical-align:.55em;margin-right:12px;letter-spacing:0}
.sec h3{font-size:20px;margin-bottom:10px}
.sec .intro{font-size:18px;color:#c6d3cf;max-width:62ch;line-height:1.55}
.sec .body{max-width:66ch;color:#c6d3cf}

/* definition grid */
.facts{display:grid;grid-template-columns:repeat(3,1fr);border:1px solid var(--line);border-radius:var(--r);margin:32px 0 0}
.facts div{padding:18px 20px;border-right:1px solid var(--line);border-bottom:1px solid var(--line)}
.facts div:nth-child(3n){border-right:0}
.facts div:nth-last-child(-n+3){border-bottom:0}
.facts dt{font-size:13px;color:var(--muted);margin-bottom:4px}
.facts dd{margin:0;font-size:17px;font-weight:500}

/* figure / diagram */
.fig{margin:36px 0 0;border:1px solid var(--line);border-radius:var(--r);background:var(--bg2);overflow:hidden}
.fig .canvas{padding:24px}
.fig figcaption{border-top:1px solid var(--line);padding:14px 20px;font-size:14px;color:var(--muted);display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}
.fig figcaption b{color:var(--text);font-weight:500}
.diagram text{font-family:var(--sans)}
.diagram .lbl{fill:#e9f0ed;font-size:14px;font-weight:500}
.diagram .sub{fill:#9fb1ac;font-size:12.5px}
.diagram .mono{font-family:var(--mono);font-size:12px;fill:#70d39b}

/* tables */
.tbl-wrap{margin:32px 0 0;border:1px solid var(--line);border-radius:var(--r);overflow-x:auto}
table{width:100%;border-collapse:collapse;font-size:15px;min-width:620px}
th,td{text-align:left;padding:14px 18px;border-bottom:1px solid var(--line);vertical-align:top}
thead th{font-size:13px;font-weight:500;color:var(--muted);background:var(--bg2)}
tbody tr:last-child td{border-bottom:0}
td.v{font-family:var(--mono);color:var(--green);white-space:nowrap}
td .note{display:block;font-size:13px;color:var(--muted);margin-top:3px}
.flag{color:#f0c674}
.yes{color:var(--green)}

/* bar chart */
.bars{display:grid;gap:18px;padding:28px 24px}
.bar{display:grid;grid-template-columns:200px 1fr 60px;gap:16px;align-items:center;font-size:14px}
.bar .t{height:14px;background:rgba(214,236,228,.06);border-radius:3px;overflow:hidden}
.bar .t i{display:block;height:100%;background:var(--slate);border-radius:3px}
.bar.us .t i{background:var(--green)}
.bar b{font-family:var(--mono);font-weight:400;text-align:right}

/* cards (Modal numbered line-art trio) */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:0;margin-top:36px;border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.card{border-right:1px solid var(--line);display:flex;flex-direction:column}
.card:last-child{border-right:0}
.card .n{font-family:var(--mono);font-size:13px;color:var(--muted);padding:14px 20px 0}
.card img{width:100%;aspect-ratio:4/3;object-fit:cover;background:#0a1820}
.card .c{padding:6px 20px 24px;border-top:1px solid var(--line)}
.card h3{font-size:17px;margin:16px 0 8px}
.card p{font-size:14.5px;color:var(--muted);margin:0}

/* features row */
.feats{display:grid;grid-template-columns:repeat(4,1fr);gap:28px;margin-top:40px}
.feats svg{width:22px;height:22px;margin-bottom:12px;color:var(--green)}
.feats h3{font-size:15.5px;margin-bottom:6px}
.feats p{font-size:14px;color:var(--muted);margin:0}

/* split rows */
.row{display:grid;grid-template-columns:1.1fr 1fr;gap:40px;margin-top:36px;align-items:start}
.row img{border-radius:var(--r);width:100%;aspect-ratio:4/3;object-fit:cover}
.row .src{font-size:12.5px;color:var(--muted);margin-top:8px}
.list{list-style:none;margin:16px 0 0;padding:0;border-top:1px solid var(--line)}
.list li{padding:12px 0;border-bottom:1px solid var(--line);font-size:15px;display:flex;justify-content:space-between;gap:16px}
.list li span:last-child{color:var(--muted);text-align:right}

.textlink{color:var(--green);text-decoration:underline;text-underline-offset:4px;font-weight:500}

/* data sheet CTA */
.ds{margin-top:8px;border:1px solid var(--line2);border-radius:var(--r);display:grid;grid-template-columns:150px 1fr auto;gap:32px;align-items:center;padding:28px 32px;background:linear-gradient(90deg,rgba(2,77,80,.35),rgba(2,77,80,0))}
.ds .sheet{width:120px;height:150px;border:1px solid var(--line2);border-radius:4px;background:var(--bg);padding:12px;display:grid;gap:6px;align-content:start}
.ds .sheet i{display:block;height:4px;background:rgba(214,236,228,.16);border-radius:2px}
.ds .sheet i:nth-child(1){width:60%;background:var(--green)}
.ds .sheet i:nth-child(4),.ds .sheet i:nth-child(7){width:70%}
.ds h2{font-size:26px;margin-bottom:8px;max-width:none}
.ds p{margin:0;color:var(--muted);max-width:52ch}

/* form */
form.req{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:28px;max-width:720px}
form.req label{display:grid;gap:6px;font-size:14px;color:#c6d3cf}
form.req .full{grid-column:1/-1}
input,select,textarea{font:inherit;color:var(--text);background:var(--bg2);border:1px solid var(--line2);border-radius:6px;padding:11px 12px}
textarea{min-height:110px;resize:vertical}
form.req .ok{grid-column:1/-1;color:var(--green);margin:0;min-height:1.5em}

/* people */
.people{display:grid;grid-template-columns:1fr 1fr;gap:0;border:1px solid var(--line);border-radius:var(--r);margin-top:32px}
.person{padding:24px;display:grid;grid-template-columns:72px 1fr;gap:20px;align-items:center}
.person + .person{border-left:1px solid var(--line)}
.person .ph{width:72px;height:72px;border-radius:6px;background:var(--teal);display:grid;place-items:center;font-family:var(--mono);color:var(--green);font-size:20px}
.person h3{font-size:18px;margin:0 0 4px}
.person p{margin:0;font-size:14px;color:var(--muted)}

/* timeline */
.tl{list-style:none;margin:32px 0 0;padding:0;border-left:1px solid var(--line2)}
.tl li{position:relative;padding:0 0 26px 28px}
.tl li::before{content:"";position:absolute;left:-5px;top:7px;width:9px;height:9px;border-radius:50%;background:var(--bg);border:1px solid var(--green)}
.tl li b{font-family:var(--mono);font-weight:400;color:var(--green);font-size:14px;display:block}
.tl li p{margin:2px 0 0;color:#c6d3cf}

/* footer */
.foot{border-top:1px solid var(--line);margin-top:40px;padding:48px 0 36px;font-size:14px;color:var(--muted)}
.foot .top{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;padding-bottom:36px;border-bottom:1px solid var(--line)}
.foot img{height:26px;width:auto;margin-bottom:14px}
.foot h4{font-size:14px;color:var(--text);margin-bottom:12px}
.foot ul{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.foot a{text-decoration:none}
.foot a:hover{color:var(--text)}
.foot .credit{padding-top:22px;display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}
.foot .credit a{text-decoration:underline;color:var(--text)}

.page-head{padding:76px 0 0}
.page-head h1{font-size:clamp(36px,4.6vw,58px);max-width:18ch}
.page-head .lead{font-size:19px;color:#c6d3cf;max-width:62ch;margin-top:20px}
.page-head .meta{display:flex;gap:28px;flex-wrap:wrap;margin-top:28px;font-size:13.5px;color:var(--muted);border-top:1px solid var(--line);padding-top:16px}
.page-head .meta b{color:var(--text);font-weight:500}

@media (max-width:1020px){
  .doc{grid-template-columns:minmax(0,1fr);gap:0;padding-top:56px}
  .toc{position:sticky;top:68px;z-index:20;background:var(--bg);margin:0 -32px 40px;padding:0 32px;border-bottom:1px solid var(--line)}
  .toc .doc-title,.toc .rev,.toc .dl{display:none}
  .toc details summary{display:flex;justify-content:space-between;padding:14px 0;cursor:pointer;list-style:none;font-weight:500}
  .toc details summary::-webkit-details-marker{display:none}
  .toc details summary::after{content:"+";color:var(--green);font-family:var(--mono)}
  .toc details[open] summary::after{content:"\2212"}
  .toc details ol{margin-bottom:14px}
  .feats{grid-template-columns:1fr 1fr}
  .foot .top{grid-template-columns:1fr 1fr}
}
@media (max-width:760px){
  .wrap{padding:0 16px}
  .toc{margin:0 -16px 32px;padding:0 16px}
  .nav ul{display:none;position:absolute;top:68px;left:0;right:0;background:var(--bg);flex-direction:column;gap:0;border-bottom:1px solid var(--line);padding:8px 16px}
  .nav ul.open{display:flex}
  .nav ul li a{display:block;padding:12px 0}
  .menu-t{display:block}
  .nav .btn{display:none}
  .hero{padding-top:56px}
  .hero .lead{font-size:17px}
  .backers .wrap{flex-direction:column;align-items:flex-start;gap:14px}
  .backers p{border-right:0;padding-right:0;flex:none}
  .backers ul{font-size:15px;gap:8px 20px}
  .facts{grid-template-columns:1fr 1fr}
  .facts div{border-right:1px solid var(--line)!important;border-bottom:1px solid var(--line)!important}
  .facts div:nth-child(2n){border-right:0!important}
  .facts div:nth-last-child(-n+2){border-bottom:0!important}
  .cards{grid-template-columns:1fr}
  .card{border-right:0;border-bottom:1px solid var(--line)}
  .card:last-child{border-bottom:0}
  .feats{grid-template-columns:1fr}
  .row{grid-template-columns:1fr;gap:20px}
  .bar{grid-template-columns:1fr 52px;gap:6px 12px}
  .bar span{grid-column:1/-1}
  .ds{grid-template-columns:1fr;padding:24px 20px;gap:18px}
  .ds .sheet{display:none}
  .people{grid-template-columns:1fr}
  .person + .person{border-left:0;border-top:1px solid var(--line)}
  form.req{grid-template-columns:1fr}
  .foot .top{grid-template-columns:1fr}
  .sec{padding-bottom:64px}
  .sec + .sec{padding-top:56px}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important;animation:none!important}}
.doc>*{min-width:0}
.card img,.row img{height:auto}