/* Penton Systems | Founder: Scott Penton | Orlando, Florida. Designed and engineered under the direction of Scott Penton. Copyright (c) 2026 Scott Penton / Penton Systems. */
/* "Aurora Steel" design system. See docs/DESIGN-SYSTEM.md */

@font-face{font-family:"Archivo";src:url(/assets/fonts/archivo-var.woff2?v=20261112164907) format("woff2-variations"),url(/assets/fonts/archivo-var.woff2?v=20261112164907) format("woff2");font-weight:100 900;font-stretch:62% 125%;font-style:normal;font-display:swap}
@font-face{font-family:"JetBrains Mono";src:url(/assets/fonts/jetbrains-mono-var.woff2?v=20261112164907) format("woff2-variations"),url(/assets/fonts/jetbrains-mono-var.woff2?v=20261112164907) format("woff2");font-weight:100 800;font-style:normal;font-display:swap}

:root{
 --ink-0:#020409;--ink-1:#050912;--ink-2:#0a1220;--ink-3:#111c2f;--ink-4:#18263d;
 --fg:#eaf0f7;--fg-2:#a8b5c8;--fg-3:#8a99b0;
 --line:rgba(150,180,230,.13);--line-2:rgba(150,180,230,.24);--line-3:rgba(170,200,245,.42);
 --blue:#2f80ff;--blue-hi:#7ab8ff;--blue-deep:#0b3f96;--teal:#22d8c8;--violet:#8a72ff;--amber:#ffb547;--red:#ff5e62;
 --steel:linear-gradient(176deg,#ffffff 0%,#dfe4ea 22%,#a3acb7 48%,#eef1f4 62%,#8e98a4 86%,#c9cfd6 100%);
 --steel-flat:#c9d1db;
 --blue-grad:linear-gradient(120deg,#0b3f96 0%,#1b6fd6 42%,#4aa6f6 78%,#bfe4ff 100%);
 --sans:"Archivo","Bahnschrift","Segoe UI Variable Text","Segoe UI",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
 --mono:"JetBrains Mono","Cascadia Mono","SFMono-Regular",Consolas,Menlo,monospace;
 --ease:cubic-bezier(.16,1,.3,1);--ease-io:cubic-bezier(.7,0,.2,1);
 --pad:clamp(20px,5vw,72px);--max:1440px;--measure:68ch;
 --mh:72px;--r:2px;
 --fs-mega:clamp(2.6rem,5.6vw,6.4rem);--fs-display:clamp(2.1rem,4vw,4.4rem);--fs-h1:clamp(2.1rem,4.4vw,4.2rem);--fs-h2:clamp(1.7rem,3.1vw,3rem);--fs-h3:clamp(1.15rem,1.5vw,1.45rem);--fs-lede:clamp(1.08rem,1.35vw,1.32rem);
 color-scheme:dark
}
*,*:before,*:after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%;scroll-padding-top:calc(var(--mh) + 16px)}
body{margin:0;background:var(--ink-1);color:var(--fg);font:400 17px/1.62 var(--sans);font-stretch:100%;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizeLegibility;overflow-x:hidden}
body:after{content:"";position:fixed;inset:-50%;z-index:9998;pointer-events:none;opacity:.045;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 .9 0'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)'/%3E%3C/svg%3E")}
img,svg,canvas,video{max-width:100%;display:block}
a{color:var(--blue-hi);text-decoration:none;text-underline-offset:.18em;text-decoration-thickness:1px}
a:hover{text-decoration:underline}
p{margin:0 0 1.1em}
h1,h2,h3,h4{margin:0 0 .5em;font-weight:700;line-height:1.08;letter-spacing:-.018em;text-wrap:balance}
h1{font-size:var(--fs-h1)}h2{font-size:var(--fs-h2)}h3{font-size:var(--fs-h3);letter-spacing:-.01em;line-height:1.2}
small{font-size:.82em}
strong,b{font-weight:650}
::selection{background:rgba(47,128,255,.45);color:#fff}
:focus-visible{outline:2px solid var(--blue-hi);outline-offset:3px}
button{font:inherit;color:inherit}
[hidden]{display:none!important}
.sr-only{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.skip{position:fixed;left:12px;top:-60px;z-index:10001;background:#fff;color:#000;padding:10px 16px;font-weight:700}
.skip:focus{top:12px}
.wrap{width:100%;max-width:var(--max);margin:0 auto;padding:0 var(--pad)}
.measure{max-width:var(--measure)}

/* ---------- type primitives ---------- */
.mono{font-family:var(--mono);font-feature-settings:"zero" 1}
.eyebrow{display:block;font:500 .74rem/1.5 var(--mono);letter-spacing:.18em;text-transform:uppercase;color:var(--fg-2);margin:0 0 22px}
.eyebrow:before{content:"";display:inline-block;vertical-align:middle;width:28px;height:1px;margin:-2px 12px 0 0;background:linear-gradient(90deg,var(--blue-hi),transparent)}
.eyebrow .ix{color:var(--blue-hi)}
.display{font-size:var(--fs-display);font-weight:800;font-stretch:125%;text-transform:uppercase;letter-spacing:-.025em;line-height:.9}
.mega{font-size:var(--fs-mega);font-weight:800;font-stretch:125%;text-transform:uppercase;letter-spacing:-.03em;line-height:.86}
.steel{background:var(--steel);-webkit-background-clip:text;background-clip:text;color:transparent;-webkit-text-fill-color:transparent;padding-bottom:.04em}
.steel.sheen{background-image:linear-gradient(100deg,transparent 30%,rgba(255,255,255,.95) 50%,transparent 70%),var(--steel);background-size:250% 100%,100% 100%;background-repeat:no-repeat;background-position:200% 0,0 0}
html[data-motion=on] .steel.sheen.in{animation:sheen 2.4s var(--ease) .2s both}
@keyframes sheen{from{background-position:200% 0,0 0}to{background-position:-60% 0,0 0}}
.blue-text{background:var(--blue-grad);-webkit-background-clip:text;background-clip:text;color:transparent;-webkit-text-fill-color:transparent}
.lede{font-size:var(--fs-lede);line-height:1.55;color:var(--fg-2);max-width:62ch;font-weight:380}
.muted{color:var(--fg-2)}.dim{color:var(--fg-3)}
.kicker{font:600 .8rem/1.3 var(--mono);letter-spacing:.08em;color:var(--fg-3);text-transform:uppercase}
.note{font-size:.86rem;color:var(--fg-3);line-height:1.55;max-width:78ch}
.note a{color:var(--fg-2);text-decoration:underline}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1}
hr.rule{border:0;height:1px;background:linear-gradient(90deg,var(--line-3),var(--line) 40%,transparent);margin:48px 0}

/* ---------- buttons ---------- */
.btn{--b:var(--line-2);position:relative;display:inline-flex;align-items:center;gap:12px;min-height:48px;padding:0 22px;border:1px solid var(--b);background:rgba(10,18,32,.55);color:var(--fg);font:600 .9rem/1 var(--sans);font-stretch:112%;letter-spacing:.02em;cursor:pointer;text-decoration:none!important;transition:border-color .35s var(--ease),background .35s var(--ease),color .35s;overflow:hidden;isolation:isolate;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}
.btn:after{content:"";width:18px;height:1px;background:currentColor;box-shadow:none;transition:width .45s var(--ease);flex:none}
.btn.no-arrow:after{display:none}
.btn:hover{--b:var(--blue-hi);background:rgba(20,40,72,.7)}
.btn:hover:after{width:30px}
.btn:before{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(100deg,transparent 35%,rgba(255,255,255,.14) 50%,transparent 65%);transform:translateX(-120%);transition:transform .8s var(--ease)}
.btn:hover:before{transform:translateX(120%)}
.btn.primary{--b:transparent;background:linear-gradient(120deg,#0f3f9e,#1b5fcc 55%,#2a6bd6);color:#fff;box-shadow:0 10px 40px -10px rgba(47,128,255,.75),inset 0 1px 0 rgba(255,255,255,.28)}
.btn.primary:hover{background:linear-gradient(120deg,#1449b3,#2163d0 55%,#2c6dd8)}
.btn.ghost{background:transparent;-webkit-backdrop-filter:none;backdrop-filter:none}
.btn.sm{min-height:38px;padding:0 14px;font-size:.8rem}
.btn[disabled],.btn[aria-disabled=true]{opacity:.45;cursor:not-allowed}
.actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.link-arrow{display:inline-flex;align-items:center;gap:10px;font:600 .9rem/1 var(--sans);font-stretch:112%;color:var(--fg)}
.link-arrow:after{content:"\2192";color:var(--blue-hi);transition:transform .35s var(--ease)}
.link-arrow:hover{text-decoration:none}.link-arrow:hover:after{transform:translateX(5px)}

/* ---------- provenance badges ---------- */
.prov{display:inline-flex;align-items:center;gap:7px;padding:4px 9px 4px 8px;border:1px solid currentColor;font:600 .66rem/1 var(--mono);letter-spacing:.14em;text-transform:uppercase;white-space:nowrap;vertical-align:middle;border-radius:1px}
.prov:before{content:"";width:6px;height:6px;border-radius:50%;background:currentColor}
.prov-live{color:var(--teal)}
html[data-motion=on] .prov-live:before{animation:livepulse 1.6s ease-in-out infinite}
@keyframes livepulse{0%,100%{box-shadow:0 0 0 0 rgba(34,216,200,.6)}50%{box-shadow:0 0 0 5px rgba(34,216,200,0)}}
.prov-cached{color:#8fb3e8}.prov-sim{color:var(--amber)}.prov-sim:before{border-radius:0;transform:rotate(45deg)}
.prov-illus{color:var(--violet)}.prov-illus:before{border-radius:0}
.prov-off{color:var(--fg-3)}.prov-off:before{background:transparent;border:1px solid currentColor}
.prov-legend{display:flex;flex-wrap:wrap;gap:10px 16px;align-items:center}

/* ---------- masthead ---------- */
.masthead{position:fixed;top:0;left:0;right:0;z-index:900;height:var(--mh);transition:background .5s var(--ease),border-color .5s,transform .5s var(--ease);border-bottom:1px solid transparent}
.masthead.solid{background:rgba(4,8,16,.78);-webkit-backdrop-filter:blur(18px) saturate(1.3);backdrop-filter:blur(18px) saturate(1.3);border-bottom-color:var(--line)}
.masthead .wrap{height:100%;display:flex;align-items:center;gap:28px}
.mh-brand{display:flex;align-items:center;gap:12px;flex:none;text-decoration:none!important}
.mh-brand .m{height:38px;width:auto;filter:drop-shadow(0 2px 10px rgba(47,128,255,.35))}
.mh-brand .w{height:15px;width:auto}
.mh-nav{margin-left:auto}
.mh-nav ul{display:flex;list-style:none;margin:0;padding:0;gap:2px}
.mh-nav a{position:relative;display:block;padding:10px 14px;color:var(--fg-2);font:550 .84rem/1 var(--sans);font-stretch:110%;letter-spacing:.03em;text-decoration:none}
.mh-nav a:after{content:"";position:absolute;left:14px;right:14px;bottom:4px;height:1px;background:var(--blue-hi);transform:scaleX(0);transform-origin:left;transition:transform .45s var(--ease)}
.mh-nav a:hover,.mh-nav a[aria-current=page]{color:#fff}
.mh-nav a:hover:after,.mh-nav a[aria-current=page]:after{transform:scaleX(1)}
.mh-tools{display:flex;align-items:center;gap:6px;flex:none}
.mh-btn{display:inline-flex;align-items:center;gap:8px;height:40px;padding:0 12px;border:1px solid transparent;background:none;color:var(--fg-2);font:600 .7rem/1 var(--mono);letter-spacing:.14em;text-transform:uppercase;cursor:pointer;text-decoration:none!important}
.mh-btn:hover{color:#fff;border-color:var(--line-2)}
.mh-btn .count{display:inline-grid;place-items:center;min-width:20px;height:20px;padding:0 5px;background:var(--blue);color:#fff;font-size:.68rem;letter-spacing:0;border-radius:10px}
.mh-btn .count[data-n="0"]{background:var(--ink-4);color:var(--fg-3)}
.mh-motion .state{color:var(--teal)}
html[data-motion=off] .mh-motion .state{color:var(--fg-3)}
.mh-index .bars{display:inline-grid;gap:4px;width:18px}
.mh-index .bars i{display:block;height:1.5px;background:currentColor;transition:transform .4s var(--ease)}
.mh-index .bars i:nth-child(2){width:65%;justify-self:end}
.mh-index:hover .bars i:nth-child(2){width:100%}
@media (max-width:1100px){.mh-nav{display:none}.mh-tools{margin-left:auto}}
@media (max-width:560px){.mh-brand .w{display:none}.mh-quote .lbl{display:none}.mh-btn{padding:0 9px}.mh-index>span:first-child{display:none}}

/* ---------- index overlay ---------- */
.index-overlay{position:fixed;inset:0;z-index:1000;background:radial-gradient(120% 90% at 85% 0%,rgba(47,128,255,.18),transparent 55%),radial-gradient(90% 70% at 0% 100%,rgba(138,114,255,.14),transparent 60%),rgba(3,6,12,.97);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);overflow-y:auto;overscroll-behavior:contain;opacity:0;visibility:hidden;transition:opacity .5s var(--ease),visibility 0s .5s}
.index-overlay.open{opacity:1;visibility:visible;transition:opacity .5s var(--ease)}
.io-top{display:flex;align-items:center;justify-content:space-between;height:var(--mh)}
.io-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:48px clamp(24px,5vw,80px);padding:28px 0 64px}
.io-xp{list-style:none;margin:0;padding:0;counter-reset:xp}
.io-xp li{border-top:1px solid var(--line)}
.io-xp li:last-child{border-bottom:1px solid var(--line)}
.io-xp a{display:grid;grid-template-columns:56px 1fr auto;align-items:baseline;gap:12px;padding:18px 0;color:var(--fg);text-decoration:none}
.io-xp .n{font:500 .78rem/1 var(--mono);color:var(--blue-hi);letter-spacing:.1em}
.io-xp .t{font-size:clamp(1.4rem,2.8vw,2.6rem);font-weight:800;font-stretch:125%;text-transform:uppercase;letter-spacing:-.02em;line-height:1;transition:transform .5s var(--ease),color .3s}
.io-xp .d{grid-column:2;font-size:.9rem;color:var(--fg-3);margin-top:6px}
.io-xp a:hover .t{transform:translateX(10px);color:#fff}
.io-xp a:after{content:"\2192";color:var(--fg-3);font-size:1.3rem;transition:transform .4s var(--ease),color .3s}
.io-xp a:hover:after{color:var(--blue-hi);transform:translateX(6px)}
.io-col h2{font:600 .72rem/1 var(--mono);letter-spacing:.18em;text-transform:uppercase;color:var(--fg-3);margin:0 0 20px}
.io-col ul{list-style:none;margin:0 0 36px;padding:0}
.io-col li a{display:block;padding:7px 0;color:var(--fg-2);font-size:1.05rem}
.io-col li a:hover{color:#fff;text-decoration:none}
html[data-motion=on] .index-overlay.open .io-xp li{animation:ioin .8s var(--ease) both}
html[data-motion=on] .index-overlay.open .io-xp li:nth-child(2){animation-delay:.05s}
html[data-motion=on] .index-overlay.open .io-xp li:nth-child(3){animation-delay:.1s}
html[data-motion=on] .index-overlay.open .io-xp li:nth-child(4){animation-delay:.15s}
html[data-motion=on] .index-overlay.open .io-xp li:nth-child(5){animation-delay:.2s}
html[data-motion=on] .index-overlay.open .io-xp li:nth-child(6){animation-delay:.25s}
@keyframes ioin{from{opacity:0;transform:translateY(24px)}to{opacity:1;transform:none}}
@media (max-width:900px){.io-grid{grid-template-columns:minmax(0,1fr)}.io-xp a{grid-template-columns:40px 1fr auto}}
body.locked{overflow:hidden}

/* ---------- basket drawer ---------- */
.basket{position:fixed;top:0;right:0;bottom:0;z-index:1001;width:min(440px,100vw);background:linear-gradient(180deg,#0b1424,#060b14);border-left:1px solid var(--line-2);box-shadow:-30px 0 80px rgba(0,0,0,.6);transform:translateX(105%);visibility:hidden;transition:transform .55s var(--ease),visibility 0s .55s;display:flex;flex-direction:column}
.basket.open{transform:none;visibility:visible;transition:transform .55s var(--ease)}
.basket header{display:flex;align-items:center;justify-content:space-between;padding:22px 26px;border-bottom:1px solid var(--line)}
.basket h2{font-size:1.05rem;font-stretch:120%;text-transform:uppercase;letter-spacing:.02em;margin:0}
.basket .body{flex:1;overflow-y:auto;padding:10px 26px}
.basket ul{list-style:none;margin:0;padding:0}
.basket li{display:grid;grid-template-columns:1fr auto;gap:10px;align-items:center;padding:16px 0;border-bottom:1px solid var(--line)}
.basket li .q{display:flex;align-items:center;gap:6px;font-family:var(--mono);font-size:.82rem;color:var(--fg-2)}
.basket li .q button{width:28px;height:28px;border:1px solid var(--line-2);background:none;color:var(--fg);cursor:pointer}
.basket footer{padding:22px 26px;border-top:1px solid var(--line)}
.scrim{position:fixed;inset:0;z-index:999;background:rgba(0,0,0,.55);opacity:0;visibility:hidden;transition:opacity .4s,visibility 0s .4s}
.scrim.on{opacity:1;visibility:visible;transition:opacity .4s}

/* ---------- chapters & layout ---------- */
main{display:block}
.chapter{position:relative;padding:clamp(88px,12vw,180px) 0;isolation:isolate}
.chapter.tight{padding:clamp(64px,8vw,110px) 0}
.chapter.flush-top{padding-top:0}
.chapter.ink0{background:var(--ink-0)}
.chapter.ink2{background:linear-gradient(180deg,var(--ink-1),var(--ink-2) 30%,var(--ink-2) 70%,var(--ink-1))}
.chapter.lined:before{content:"";position:absolute;inset:0;z-index:-1;background-image:linear-gradient(var(--line) 1px,transparent 1px);background-size:100% 120px;-webkit-mask:linear-gradient(180deg,transparent,#000 20%,#000 80%,transparent);mask:linear-gradient(180deg,transparent,#000 20%,#000 80%,transparent);opacity:.5}
.ch-head{display:grid;grid-template-columns:minmax(0,1fr);gap:0;margin-bottom:clamp(40px,6vw,80px)}
.ch-index{position:absolute;top:clamp(40px,6vw,72px);right:var(--pad);font:500 .72rem/1 var(--mono);letter-spacing:.18em;color:var(--fg-3)}
.ch-index b{color:var(--fg);font-weight:600}
.split{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:clamp(32px,6vw,110px);align-items:start}
.split.rev{grid-template-columns:minmax(0,7fr) minmax(0,5fr)}
.split.even{grid-template-columns:1fr 1fr}
.split.center{align-items:center}
.sticky{position:sticky;top:calc(var(--mh) + 32px)}
@media (max-width:960px){.split,.split.rev,.split.even{grid-template-columns:minmax(0,1fr)}.sticky{position:static}}
.cols-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(24px,3vw,48px)}
.cols-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:clamp(24px,3vw,48px)}
@media (max-width:860px){.cols-3,.cols-2{grid-template-columns:minmax(0,1fr)}}

/* ---------- page hero (non-home) ---------- */
.p-hero{position:relative;min-height:min(92vh,980px);display:flex;align-items:flex-end;padding:calc(var(--mh) + 80px) 0 clamp(56px,8vw,110px);overflow:hidden;isolation:isolate}
.p-hero.short{min-height:min(70vh,720px)}
.p-hero .bg{position:absolute;inset:0;z-index:-2}
.p-hero .bg canvas{width:100%;height:100%}
.p-hero:after{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(180deg,rgba(5,9,18,.35) 0%,transparent 30%,rgba(5,9,18,.55) 75%,var(--ink-1) 100%)}
.p-hero .aurora{position:absolute;inset:-10% -10% 20% -10%;z-index:-2;background:radial-gradient(38% 50% at 18% 30%,rgba(47,128,255,.32),transparent 70%),radial-gradient(30% 40% at 78% 18%,rgba(34,216,200,.14),transparent 70%),radial-gradient(40% 46% at 62% 64%,rgba(138,114,255,.18),transparent 70%);filter:blur(40px)}
html[data-motion=on] .p-hero .aurora{animation:aurora 26s ease-in-out infinite alternate}
@keyframes aurora{from{transform:translate3d(-3%,0,0) scale(1)}to{transform:translate3d(4%,3%,0) scale(1.12)}}
.p-hero .grid-floor{position:absolute;left:-20%;right:-20%;bottom:-10%;height:55%;z-index:-2;background-image:linear-gradient(rgba(122,184,255,.18) 1px,transparent 1px),linear-gradient(90deg,rgba(122,184,255,.18) 1px,transparent 1px);background-size:80px 80px;transform:perspective(600px) rotateX(62deg);transform-origin:50% 100%;-webkit-mask:linear-gradient(0deg,#000 10%,transparent 80%);mask:linear-gradient(0deg,#000 10%,transparent 80%)}
.p-hero h1{margin:0 0 26px}
.p-hero .lede{margin:0}
.p-hero .meta-row{display:flex;flex-wrap:wrap;gap:10px 28px;margin-top:36px;font:500 .74rem/1.4 var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--fg-3)}
.p-hero .meta-row b{color:var(--fg-2);font-weight:600}
.crumbs{font:500 .72rem/1 var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--fg-3);margin-bottom:28px}
.crumbs a{color:var(--fg-2)}

/* ---------- ledger (replaces card grids) ---------- */
.ledger{list-style:none;margin:0;padding:0;border-top:1px solid var(--line-2)}
.ledger>li{position:relative;display:grid;grid-template-columns:72px minmax(0,1.1fr) minmax(0,1.6fr) auto;gap:clamp(16px,3vw,44px);align-items:baseline;padding:30px 0;border-bottom:1px solid var(--line)}
.ledger>li:before{content:"";position:absolute;left:0;bottom:-1px;height:1px;width:0;background:linear-gradient(90deg,var(--blue-hi),transparent);transition:width .8s var(--ease)}
.ledger>li:hover:before{width:100%}
.ledger .n{font:500 .78rem/1 var(--mono);color:var(--blue-hi);letter-spacing:.1em}
.ledger h3{margin:0;font-size:clamp(1.15rem,1.8vw,1.6rem);font-stretch:112%}
.ledger p{margin:0;color:var(--fg-2)}
.ledger .go{align-self:center}
.ledger a.row-link{position:absolute;inset:0;z-index:1}
.ledger a.row-link:focus-visible{outline-offset:-2px}
@media (max-width:860px){.ledger>li{grid-template-columns:44px 1fr;row-gap:8px}.ledger>li p,.ledger>li .go{grid-column:2}}

/* ---------- spec sheet ---------- */
.spec{width:100%;border-collapse:collapse;font-size:.94rem}
.spec th,.spec td{text-align:left;padding:12px 14px 12px 0;border-bottom:1px solid var(--line);vertical-align:top}
.spec th{font:500 .74rem/1.5 var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--fg-3);font-weight:500}
.spec tr>th:first-child:nth-last-child(2){width:38%}
.spec td{color:var(--fg)}
.spec thead th{color:var(--fg-2);border-bottom-color:var(--line-2)}
.spec tr.hl td,.spec tr.hl th{background:rgba(47,128,255,.08)}
.tablewrap{overflow-x:auto;-webkit-overflow-scrolling:touch}
/* phones: ui.js adds .stack to a data table that would not fit; each row becomes a labelled block */
table.spec.stack,table.spec.stack tbody,table.spec.stack tr,table.spec.stack th,table.spec.stack td{display:block;width:auto!important;min-width:0!important;white-space:normal!important;text-align:left!important}
table.spec.stack thead{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}
table.spec.stack tr{padding:12px 0;border-bottom:1px solid var(--line)}
table.spec.stack tbody th,table.spec.stack td{border:0;padding:4px 0}
table.spec.stack tbody th{padding-bottom:8px;color:var(--fg)}
table.spec.stack td[data-label]{display:flow-root;padding-left:calc(7.5rem + 14px)}
table.spec.stack td[data-label]:before{content:attr(data-label);float:left;width:7.5rem;margin:.2em 0 0 calc(-7.5rem - 14px);font:500 .66rem/1.5 var(--mono);letter-spacing:.06em;text-transform:uppercase;color:var(--fg-3)}
table.spec.stack td[data-label=""]{display:block}
table.spec.stack td[data-label=""]:before{content:none}
.deflist{display:grid;grid-template-columns:minmax(120px,max-content) 1fr;margin:0;border-top:1px solid var(--line)}
.deflist dt,.deflist dd{margin:0;padding:12px 0;border-bottom:1px solid var(--line)}
.deflist dt{font:500 .74rem/1.6 var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--fg-3);padding-right:24px}

/* ---------- readouts ---------- */
.readouts{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));border-top:1px solid var(--line-2);border-left:1px solid var(--line)}
.readout{padding:22px 22px 20px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);min-width:0}
.readout .k{display:flex;align-items:center;justify-content:space-between;gap:8px;font:500 .68rem/1.3 var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--fg-3);margin-bottom:14px}
.readout .v{font-size:clamp(1.7rem,2.8vw,2.6rem);font-weight:700;font-stretch:115%;letter-spacing:-.02em;line-height:1;font-variant-numeric:tabular-nums}
.readout .v small{font:500 .8rem/1 var(--mono);color:var(--fg-3);margin-left:6px;letter-spacing:0}
.readout .s{margin-top:10px;font-size:.82rem;color:var(--fg-3);line-height:1.4}
.readout.ok .v{color:var(--teal)}.readout.warn .v{color:var(--amber)}.readout.bad .v{color:var(--red)}

/* ---------- instrument frame (all canvases) ---------- */
.instrument{position:relative;border:1px solid var(--line);background:radial-gradient(120% 100% at 50% 0%,rgba(24,40,68,.55),rgba(6,10,20,.9) 70%);isolation:isolate}
.instrument:before,.instrument:after{content:"";position:absolute;width:14px;height:14px;border:1px solid var(--line-3);pointer-events:none;z-index:3}
.instrument:before{top:-1px;left:-1px;border-right:0;border-bottom:0}
.instrument:after{bottom:-1px;right:-1px;border-left:0;border-top:0}
.instrument .ibar{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:8px 12px;padding:12px 16px;border-bottom:1px solid var(--line);font:500 .68rem/1.3 var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--fg-3)}
.instrument .ibar b{color:var(--fg-2);font-weight:600}
.instrument .stage{position:relative;width:100%;aspect-ratio:16/9;overflow:hidden}
.instrument .stage.tall{aspect-ratio:4/3}.instrument .stage.square{aspect-ratio:1/1}
.instrument .stage canvas{position:absolute;inset:0;width:100%;height:100%}
.instrument .ifoot{display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;padding:12px 16px;border-top:1px solid var(--line);font-size:.82rem;color:var(--fg-3)}
.instrument .fallback{position:absolute;inset:0;display:grid;place-items:center;text-align:center;padding:24px;color:var(--fg-2)}
.instrument .stage.has-gl .fallback{display:none}

/* ---------- controls ---------- */
.seg{display:inline-flex;flex-wrap:wrap;border:1px solid var(--line-2)}
.seg button{min-height:40px;padding:0 14px;border:0;border-right:1px solid var(--line);background:transparent;color:var(--fg-2);font:600 .76rem/1 var(--mono);letter-spacing:.06em;cursor:pointer;transition:background .25s,color .25s}
.seg button:last-child{border-right:0}
.seg button:hover{color:#fff;background:rgba(47,128,255,.1)}
.seg button[aria-pressed=true],.seg button[aria-selected=true]{background:var(--blue);color:#fff}
.field{display:grid;gap:8px;margin-bottom:20px}
.field>label,.field .lbl{font:500 .72rem/1.3 var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--fg-3);display:flex;justify-content:space-between;gap:12px}
.field>label output,.field .lbl output{color:var(--fg);letter-spacing:.02em}
input[type=text],input[type=email],input[type=tel],input[type=search],input[type=number],select,textarea{width:100%;min-height:48px;padding:12px 14px;background:rgba(5,10,20,.7);border:1px solid var(--line-2);color:var(--fg);font:400 1rem/1.4 var(--sans);border-radius:0;transition:border-color .25s,background .25s;appearance:none;-webkit-appearance:none}
select{background-image:linear-gradient(45deg,transparent 50%,var(--fg-2) 50%),linear-gradient(135deg,var(--fg-2) 50%,transparent 50%);background-position:calc(100% - 20px) 50%,calc(100% - 15px) 50%;background-size:5px 5px;background-repeat:no-repeat;padding-right:40px}
textarea{min-height:140px;resize:vertical}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--blue-hi);background:rgba(10,20,40,.85)}
input[type=number]{font-family:var(--mono);font-variant-numeric:tabular-nums}
input[type=range]{-webkit-appearance:none;appearance:none;width:100%;height:28px;background:transparent;cursor:pointer}
input[type=range]::-webkit-slider-runnable-track{height:2px;background:linear-gradient(90deg,var(--blue-hi) var(--fill,50%),var(--line-2) var(--fill,50%))}
input[type=range]::-moz-range-track{height:2px;background:var(--line-2)}
input[type=range]::-moz-range-progress{height:2px;background:var(--blue-hi)}
input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:16px;height:16px;margin-top:-7px;background:#fff;border:3px solid var(--blue);border-radius:50%;box-shadow:0 0 0 4px rgba(47,128,255,.2)}
input[type=range]::-moz-range-thumb{width:12px;height:12px;background:#fff;border:3px solid var(--blue);border-radius:50%}
input[type=range]:focus-visible{outline:2px solid var(--blue-hi);outline-offset:2px}
.check{display:flex;gap:10px;align-items:flex-start;font-size:.92rem;color:var(--fg-2);cursor:pointer}
.check input{width:18px;height:18px;margin-top:3px;accent-color:var(--blue)}
.err{color:#ff9a9a;font-size:.82rem;min-height:0}
.status{font-size:.95rem;margin-top:14px;padding:0;color:var(--fg-2)}
.status.ok{color:var(--teal)}.status.bad{color:#ff9a9a}
.hp{position:absolute!important;left:-9999px;width:1px;height:1px;overflow:hidden}

/* ---------- callouts ---------- */
.callout{border-left:2px solid var(--blue);padding:4px 0 4px 20px;color:var(--fg-2);max-width:78ch}
.callout.sim{border-color:var(--amber)}.callout.illus{border-color:var(--violet)}.callout.warn{border-color:var(--red)}
.callout p:last-child{margin:0}
.panel{border:1px solid var(--line);background:linear-gradient(180deg,rgba(17,28,47,.55),rgba(8,14,26,.6));padding:clamp(20px,3vw,34px)}

/* ---------- reveal ---------- */
html.js[data-motion=on] [data-reveal]{opacity:0;transform:translateY(28px);transition:opacity 1.1s var(--ease),transform 1.1s var(--ease);transition-delay:var(--d,0s)}
html.js[data-motion=on] [data-reveal].in{opacity:1;transform:none}
html.js[data-motion=on] [data-reveal=fade]{transform:none}
html.js[data-motion=on] [data-reveal=line]{transform:none;clip-path:inset(0 100% 0 0);transition:clip-path 1.4s var(--ease),opacity .2s}
html.js[data-motion=on] [data-reveal=line].in{clip-path:inset(0 0 0 0)}
html[data-motion=off] *,html[data-motion=off] *:before,html[data-motion=off] *:after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;scroll-behavior:auto!important}

/* ---------- pre-footer call strip ---------- */
.callstrip{position:relative;border-top:1px solid var(--line);background:linear-gradient(90deg,rgba(11,63,150,.35),rgba(5,9,18,0) 60%),var(--ink-1);overflow:hidden}
.callstrip .wrap{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:32px;align-items:center;padding-top:56px;padding-bottom:56px}
.callstrip .q{font-size:clamp(1.3rem,2.4vw,2rem);font-weight:700;font-stretch:115%;line-height:1.15;letter-spacing:-.015em}
.callstrip .q span{display:block;color:var(--fg-2);font-weight:400;font-stretch:100%;font-size:1rem;margin-top:10px;letter-spacing:0}
.callstrip .actions{margin:0}
@media (max-width:860px){.callstrip .wrap{grid-template-columns:minmax(0,1fr)}}

/* ---------- footer ---------- */
.foot{position:relative;background:var(--ink-0);border-top:1px solid var(--line);padding:clamp(64px,8vw,110px) 0 40px;overflow:hidden}
.foot:before{content:"";position:absolute;left:50%;top:0;width:min(1100px,90vw);height:1px;transform:translateX(-50%);background:linear-gradient(90deg,transparent,var(--blue-hi),transparent)}
.foot-top{display:grid;grid-template-columns:1.3fr repeat(3,1fr);gap:40px}
.foot-brand img{height:auto;width:min(280px,70vw);margin-bottom:20px}
.foot-brand p{color:var(--fg-3);max-width:36ch;font-size:.95rem}
.foot h2{font:600 .7rem/1 var(--mono);letter-spacing:.18em;text-transform:uppercase;color:var(--fg-3);margin:0 0 18px}
.foot ul{list-style:none;margin:0;padding:0}
.foot li a{display:inline-block;padding:5px 0;color:var(--fg-2);font-size:.95rem}
.foot li a:hover{color:#fff}
.foot-wordmark{margin:clamp(56px,8vw,96px) 0 28px;font-size:clamp(3rem,12.5vw,13rem);font-weight:900;font-stretch:125%;letter-spacing:-.04em;line-height:.95;padding-top:.04em;text-transform:uppercase;background:linear-gradient(180deg,rgba(234,240,247,.14),rgba(234,240,247,0) 85%);-webkit-background-clip:text;background-clip:text;color:transparent;-webkit-text-fill-color:transparent;user-select:none;white-space:nowrap;overflow:hidden;overflow:clip visible}
.foot-legal{display:flex;flex-wrap:wrap;justify-content:space-between;gap:16px 32px;padding-top:24px;border-top:1px solid var(--line);font-size:.8rem;color:var(--fg-3)}
.foot-legal p{margin:0;max-width:90ch}
.foot-legal a{color:var(--fg-2)}
@media (max-width:960px){.foot-top{grid-template-columns:1fr 1fr}.foot-brand{grid-column:1/-1}}

/* ---------- prose (legal, case studies) ---------- */
.prose{max-width:var(--measure);font-size:1.04rem}
.prose h2{font-size:clamp(1.4rem,2.2vw,1.9rem);margin:2.2em 0 .6em;font-stretch:110%}
.prose h3{margin:1.8em 0 .5em}
.prose p,.prose li{color:var(--fg-2)}
.prose ul,.prose ol{padding-left:1.2em;margin:0 0 1.2em}
.prose li{margin:.35em 0}
.prose strong{color:var(--fg)}

/* ---------- tags ---------- */
.tag{display:inline-block;padding:5px 9px;border:1px solid var(--line-2);font:600 .66rem/1 var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--fg-2)}
.tag.completed{color:var(--teal);border-color:rgba(34,216,200,.45)}
.tag.experimental{color:var(--blue-hi);border-color:rgba(122,184,255,.45)}
.tag.prototype{color:var(--violet);border-color:rgba(138,114,255,.5)}
.tag.planned{color:var(--fg-3)}

/* ---------- utility ---------- */
.mt0{margin-top:0}.mb0{margin-bottom:0}.mt-l{margin-top:clamp(40px,6vw,80px)}.mt-m{margin-top:32px}
.center:not(.split){text-align:center}
.nowrap{white-space:nowrap}
.hide-sm{}
@media (max-width:640px){.hide-sm{display:none!important}}
.hairline{height:1px;background:var(--line);border:0;margin:0}
.anchor-offset{scroll-margin-top:calc(var(--mh) + 24px)}

/* ---------- print ---------- */
@media print{body{background:#fff;color:#000}body:after,.masthead,.index-overlay,.basket,.scrim,.callstrip,.foot-wordmark,canvas{display:none!important}.steel,.blue-text{color:#000;-webkit-text-fill-color:#000;background:none}a{color:#000;text-decoration:underline}}

/* ---------- small screens: keep expanded display type inside the viewport ---------- */
@media (max-width:560px){.mega,.display{overflow-wrap:break-word}}
@media (max-width:560px){.mega{font-size:clamp(1.8rem,8.4vw,3rem);font-stretch:112%;letter-spacing:-.02em}.display{font-size:clamp(1.6rem,7.6vw,2.6rem);font-stretch:112%}h1{font-size:clamp(1.8rem,8vw,2.6rem)}}
/* without JavaScript the fit routine cannot run: let long display words wrap rather than be cut off */
html:not(.js) .mega,html:not(.js) .display{overflow-wrap:break-word}
/* ledgers adapt to the width they are given (a ledger inside a half-width column switches to two columns) */
.ledger{container-type:inline-size}
.ledger h3{overflow-wrap:break-word}
@container (max-width:760px){.ledger>li{grid-template-columns:44px minmax(0,1fr);row-gap:8px}.ledger>li p,.ledger>li .go,.ledger>li>b,.ledger>li>span:last-child{grid-column:2}}
.foot-contact{display:grid;gap:4px;font-style:normal;margin-top:6px}
.foot-contact a{color:var(--fg);font:500 .9rem/1.5 var(--mono);letter-spacing:.02em;width:max-content;max-width:100%}
.contact-direct dd a{font:500 1rem/1.4 var(--mono)}