:root{--bg:#07090c;--bg2:#0d1116;--ink:#eef0f2;--ink2:#aab2bb;--line:#232a33;--cy:#5fd6d0;--gold:#c9b48a;--serif:"Iowan Old Style","Palatino Linotype",Palatino,Georgia,serif;--mono:ui-monospace,"SF Mono",Menlo,Consolas,monospace;--sans:-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;--fs:100%}
html.hc{--bg:#000;--bg2:#000;--ink:#fff;--ink2:#e6ebf0;--line:#6b7682}
*{box-sizing:border-box}
html{font-size:var(--fs);scroll-behavior:smooth;background:var(--bg)}
body{margin:0;min-height:100vh;color:var(--ink);font-family:var(--sans);line-height:1.65;background:radial-gradient(1200px 600px at 80% -10%,#0f1c24 0,transparent 60%),var(--bg);overflow-x:clip;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:var(--cy)}
a:focus-visible,button:focus-visible,summary:focus-visible,[role=tab]:focus-visible{outline:3px solid var(--cy);outline-offset:3px;border-radius:2px}
.skip{position:absolute;left:-999px;top:8px;background:var(--cy);color:#000;padding:12px 16px;z-index:100;font-weight:600}
.skip:focus{left:8px}
.mono,.eyebrow,.kicker,label{font-family:var(--mono);letter-spacing:.16em;text-transform:uppercase;font-size:.75rem}
.eyebrow,.kicker{color:var(--gold);margin:0 0 18px;letter-spacing:.2em}
/* nav */
.top{position:sticky;top:0;z-index:50;display:flex;align-items:center;gap:14px;padding:10px clamp(18px,4vw,48px);border-bottom:1px solid var(--line);flex-wrap:wrap;background:rgba(7,9,12,.92);backdrop-filter:blur(10px)}
.brand{font-family:var(--serif);font-size:1.5rem;color:var(--ink);text-decoration:none;display:flex;align-items:center;gap:10px;min-height:44px}
.brand b{font-weight:400;color:var(--cy)}
.mark{width:14px;height:14px;border:1px solid var(--cy);border-radius:50%;box-shadow:0 0 0 4px #0b1215,0 0 0 5px #1f4c4a}
.top nav{margin-left:auto;display:flex;gap:2px;flex-wrap:wrap}
.top nav a{color:var(--ink2);text-decoration:none;padding:10px 12px;min-height:44px;display:inline-flex;align-items:center;border-bottom:2px solid transparent;font-family:var(--mono);font-size:.75rem;letter-spacing:.14em;text-transform:uppercase}
.top nav a:hover{color:var(--ink)}
.top nav a[aria-current=page]{color:var(--ink);border-bottom-color:var(--cy)}
.menu-btn{display:none;margin-left:auto;background:none;border:1px solid var(--line);color:var(--ink);min-height:44px;padding:0 16px;cursor:pointer;font-family:var(--mono);font-size:.75rem;letter-spacing:.14em;text-transform:uppercase}
@media(max-width:860px){.menu-btn{display:inline-flex;align-items:center}.top nav{display:none;margin:0;flex-basis:100%;flex-direction:column;gap:0;border-top:1px solid var(--line)}.top nav.open{display:flex}.top nav a{border-bottom:1px solid var(--line);padding:14px 4px}}
.js .top nav{}
@media(max-width:860px){html:not(.js) .top nav{display:flex}html:not(.js) .menu-btn{display:none}}
/* layout */
main{display:block}
.mw{max-width:1080px;margin:0 auto;padding:0 clamp(18px,4vw,48px) 40px}
h1,h2,h3{font-family:var(--serif);font-weight:400;margin:0}
h1{font-size:clamp(2.25rem,7vw,4.5rem);line-height:1.04;letter-spacing:-.015em}
h1 em{font-style:italic;color:var(--cy)}
h2{font-size:clamp(1.6rem,3.6vw,2.4rem);line-height:1.15;margin-bottom:18px}
h3{font-size:1.35rem;line-height:1.2}
p{margin:0 0 1em}
.hero{position:relative;padding:clamp(56px,10vw,120px) 0 48px}
.hero .lede{max-width:660px;color:var(--ink2);font-size:1.15rem;margin:22px 0}
.hero-wrap{position:relative;overflow:hidden;border-bottom:1px solid var(--line)}
#field{position:absolute;inset:0;width:100%;height:100%;opacity:.55;pointer-events:none}
.hero-wrap .hero{position:relative;z-index:1;max-width:1080px;margin:0 auto;padding-left:clamp(18px,4vw,48px);padding-right:clamp(18px,4vw,48px)}
section{padding:clamp(40px,7vw,80px) 0 0}
.lead{font-family:var(--serif);font-size:clamp(1.25rem,2.4vw,1.6rem);line-height:1.4;max-width:760px}
.body-copy{max-width:720px;color:var(--ink2)}
.btns{display:flex;gap:12px;flex-wrap:wrap;margin-top:8px}
.btn{min-height:44px;padding:0 22px;display:inline-flex;align-items:center;background:none;border:1px solid #3a4452;color:var(--ink);cursor:pointer;font-family:var(--mono);font-size:.75rem;letter-spacing:.14em;text-transform:uppercase;text-decoration:none}
.btn:hover{border-color:var(--ink2)}
.btn.primary{background:var(--cy);border-color:var(--cy);color:#031211;font-weight:700}
.chips{display:flex;gap:10px;flex-wrap:wrap;margin:0;padding:0;list-style:none}
.chips li{border:1px solid var(--line);padding:6px 12px;color:var(--ink2);font-family:var(--mono);font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;margin:0}
.card,.sys,.panel{background:linear-gradient(180deg,#0f141a,#0b0f13);border:1px solid var(--line);padding:clamp(20px,3vw,30px);box-shadow:inset 0 1px 0 #ffffff0d}
html.hc .card,html.hc .sys,html.hc .panel{background:#000}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,300px),1fr));gap:18px;margin-top:20px}
.card h3{margin-bottom:10px}
.card p{color:var(--ink2)}
.more{font-family:var(--mono);font-size:.75rem;letter-spacing:.12em;text-transform:uppercase;display:inline-block;padding:10px 0;min-height:44px}
.principle{border-left:2px solid var(--gold);background:#14110a;padding:22px 26px;max-width:820px}
html.hc .principle{background:#000}
.principle p{font-family:var(--serif);font-style:italic;font-size:clamp(1.25rem,2.6vw,1.7rem);line-height:1.4;margin:0 0 10px}
.principle cite{font-family:var(--mono);font-style:normal;font-size:.75rem;letter-spacing:.16em;text-transform:uppercase;color:var(--gold)}
.status{display:inline-block;margin-left:8px;border:1px solid var(--line);padding:2px 8px;font-family:var(--mono);font-size:.68rem;letter-spacing:.12em;text-transform:uppercase;color:var(--ink2);vertical-align:middle}
.status.live{border-color:var(--cy);color:var(--cy)}
.status.dev{border-color:var(--gold);color:var(--gold)}
.role{font-family:var(--mono);font-size:.72rem;letter-spacing:.12em;text-transform:uppercase;color:var(--gold);margin-bottom:10px}
figure{margin:24px 0 0}
figure img{border:1px solid var(--line);width:100%}
figcaption{margin-top:10px;font-size:.85rem;color:var(--ink2)}
/* tabs */
.tabs{display:flex;gap:0;flex-wrap:wrap;border-bottom:1px solid var(--line);margin-top:22px}
[role=tab]{background:none;border:0;border-bottom:2px solid transparent;color:var(--ink2);min-height:48px;padding:0 18px;cursor:pointer;font-family:var(--mono);font-size:.75rem;letter-spacing:.14em;text-transform:uppercase}
[role=tab][aria-selected=true]{color:var(--ink);border-bottom-color:var(--cy)}
[role=tab]:hover{color:var(--ink)}
[role=tabpanel]{padding:24px 0 0;max-width:720px}
[role=tabpanel] p{font-family:var(--serif);font-size:1.3rem;line-height:1.45}
[role=tabpanel][hidden]{display:none}
/* pipeline */
.pipe{list-style:none;margin:20px 0 0;padding:0;display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line)}
.pipe li{margin:0}
.pipe button{width:100%;text-align:left;background:none;border:0;border-bottom:2px solid transparent;color:var(--ink);padding:16px 10px 12px 0;cursor:pointer;display:flex;flex-direction:column;gap:4px;min-height:64px;font-family:var(--serif);font-size:1.15rem}
.pipe button .mono{color:var(--gold)}
.pipe button[aria-pressed=true]{border-bottom-color:var(--cy)}
.pipe button[aria-pressed=true] .mono{color:var(--cy)}
@media(max-width:700px){.pipe{grid-template-columns:repeat(2,1fr)}}
.pipe-detail{margin-top:18px;border-left:2px solid var(--cy);padding:6px 0 6px 18px;font-family:var(--serif);font-size:1.3rem;max-width:700px}
.pipe-detail .mono{display:block;color:var(--gold);margin-bottom:4px}
/* filters */
.filters{display:flex;gap:8px;flex-wrap:wrap;margin:18px 0 0}
.filters button{background:none;border:1px solid var(--line);color:var(--ink2);min-height:44px;padding:0 16px;cursor:pointer;font-family:var(--mono);font-size:.75rem;letter-spacing:.12em;text-transform:uppercase}
.filters button[aria-pressed=true]{border-color:var(--cy);color:var(--ink);background:#0f2a2b}
.card[hidden]{display:none}
/* lists */
.res{list-style:none;padding:0;margin:20px 0 0;display:grid;gap:18px}
.res li{margin:0}
details.card summary{cursor:pointer;font-family:var(--serif);font-size:1.35rem;min-height:44px;display:flex;align-items:center;list-style:none}
details.card summary::-webkit-details-marker{display:none}
details.card summary::after{content:"+";margin-left:auto;font-family:var(--mono);color:var(--cy)}
details.card[open] summary::after{content:"\2212"}
details.card p{margin:12px 0 0}
/* tools + footer */
.tools{display:flex;gap:8px;flex-wrap:wrap}
.tools button{background:none;border:1px solid var(--line);color:var(--ink2);min-height:44px;padding:0 14px;cursor:pointer;font-family:var(--mono);font-size:.72rem;letter-spacing:.12em;text-transform:uppercase}
.tools button[aria-pressed=true]{border-color:var(--cy);color:var(--ink)}
footer{border-top:1px solid var(--line);margin-top:64px;padding:36px clamp(18px,4vw,48px);color:var(--ink2);font-size:.9rem}
footer>div{max-width:1080px;margin:0 auto}
footer .motto{font-family:var(--mono);letter-spacing:.2em;text-transform:uppercase;font-size:.75rem;color:var(--gold)}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
/* reveal */
.js .reveal{opacity:0;transform:translateY(14px);transition:opacity .6s ease,transform .6s ease}
.js .reveal.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.js .reveal{opacity:1;transform:none;transition:none}*{transition:none!important;animation:none!important}}

footer a,main a[href^="mailto:"],.doc a[href^="https://github.com"],.doc a[href$=".md"]{display:inline-block;min-height:24px;padding:4px 0;max-width:100%;overflow-wrap:anywhere}
.anim-toggle{display:block;margin-top:16px;background:none;border:1px solid var(--line);color:var(--ink2);min-height:44px;padding:0 14px;cursor:pointer;font-family:var(--mono);font-size:.72rem;letter-spacing:.12em;text-transform:uppercase}
.anim-toggle:hover{color:var(--ink);border-color:var(--cy)}

@media(max-width:720px){#field{opacity:.3}}
.anim-toggle[hidden]{display:none}

.story{padding-top:72px;margin-bottom:24px;border-bottom:1px solid var(--line);padding-bottom:56px}
.story h2{font-size:clamp(2.2rem,6.4vw,4.2rem);line-height:1.05;margin-bottom:36px;max-width:12em}
.st-body{max-width:680px;border-left:1px solid var(--line);padding-left:clamp(18px,3vw,36px)}
.st-body p{font-family:var(--serif);font-size:clamp(1.15rem,2.1vw,1.38rem);line-height:1.6;color:var(--ink);margin:0 0 1.15em}
.st-body .st-open{font-size:clamp(1.35rem,2.8vw,1.8rem);line-height:1.35;color:var(--gold);font-style:italic}
.st-body .st-pull{font-size:clamp(1.5rem,3.4vw,2.2rem);line-height:1.25;font-style:italic;color:var(--cy);margin:1.4em 0}
.st-body .st-turn{font-size:clamp(1.3rem,2.6vw,1.7rem);line-height:1.4;border-top:1px solid var(--line);padding-top:1.1em;margin-top:1.6em}
.st-body .st-end{color:var(--ink2)}
.about-bg{background:none}
.bg-stage{position:fixed;inset:0;z-index:-1;pointer-events:none;overflow:hidden;background:radial-gradient(1200px 600px at 80% -10%,#0f1c24 0,transparent 60%),#07090c}
.bg-art{-webkit-mask-image:linear-gradient(90deg,transparent 0,#000 30%);mask-image:linear-gradient(90deg,transparent 0,#000 30%);position:absolute;top:0;bottom:0;left:28%;right:0;transform-origin:50% 55%;animation:bgbreathe 16s ease-in-out infinite alternate}
.bg-img,.bg-lab{position:absolute;inset:0;background:center/cover no-repeat}
.bg-img{background-image:url(about-stack.webp)}
.bg-lab{background-image:url(about-labels.webp);mix-blend-mode:screen;opacity:1;animation:bglab 3.2s ease-out .5s both,bglabp 9s ease-in-out 3.7s infinite alternate}
.bg-scrim{position:absolute;inset:0;background:linear-gradient(90deg,rgba(7,9,12,.9) 0,rgba(7,9,12,.84) 45%,rgba(7,9,12,.8) 100%)}
@keyframes bgbreathe{from{transform:scale(1);filter:brightness(.92)}to{transform:scale(1.045);filter:brightness(1.08)}}
@keyframes bglab{from{opacity:0}to{opacity:1}}
@keyframes bglabp{from{opacity:.75}to{opacity:1}}
@media(max-width:720px){.bg-art{left:0;-webkit-mask-image:none;mask-image:none}.bg-scrim{background:rgba(7,9,12,.86)}.bg-img,.bg-lab{background-position:62% center}}
@media(prefers-reduced-motion:reduce){.bg-art,.bg-lab{animation:none!important}.bg-lab{opacity:1}}