:root{
  --field:#DFE4DC;
  --ink:#151F1B;
  --ink-soft:#41504A;
  --rule:#AEBBB1;
  --survey:#1F4FD8;
  --ochre:#B5761A;
  --paper:#EDF0EA;

  --display:"Bricolage Grotesque",system-ui,sans-serif;
  --body:"Newsreader",Georgia,serif;
  --mono:"IBM Plex Mono",ui-monospace,monospace;

  --gut:clamp(20px,5vw,64px);
  --max:1160px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

body{
  margin:0;
  position:relative;
  background-color:var(--field);
  color:var(--ink);
  font-family:var(--body);
  font-size:clamp(17px,1.05vw + 14px,19px);
  line-height:1.62;
  -webkit-font-smoothing:antialiased;
}

/* topographic ground — assets/contour.svg, generated by make_contour.py.
   Fixed so the terrain stays put while the page scrolls over it. */
body::before{
  content:"";
  position:fixed;
  inset:0;
  background:url("contour.svg") center/cover no-repeat;
  opacity:.13;
  pointer-events:none;
  z-index:0;
}
body > *{position:relative;z-index:1}

.wrap{max-width:var(--max);margin:0 auto;padding:0 var(--gut)}

a{color:var(--ink);text-decoration-color:var(--rule);text-underline-offset:3px;text-decoration-thickness:1px}
a:hover{color:var(--survey);text-decoration-color:var(--survey)}
a:focus-visible,button:focus-visible,summary:focus-visible{outline:2px solid var(--survey);outline-offset:3px;border-radius:2px}

.skip{position:absolute;left:-9999px;top:0;background:var(--ink);color:var(--paper);padding:10px 16px;font-family:var(--mono);font-size:12px;z-index:200}
.skip:focus{left:8px;top:8px}

/* ---------- masthead ---------- */
.top{position:sticky;top:0;z-index:60;background:rgba(223,228,220,.93);backdrop-filter:blur(8px);border-bottom:1px solid var(--rule)}
.top-in{display:flex;align-items:center;justify-content:space-between;gap:18px;padding-top:12px;padding-bottom:12px}
.mark{display:flex;align-items:center;gap:10px;font-family:var(--mono);font-size:12px;letter-spacing:.14em;text-transform:uppercase;text-decoration:none;white-space:nowrap;flex:none}
.mark img{width:26px;height:26px;display:block;flex:none}
.mark:hover{color:var(--survey)}
.nav{display:flex;gap:clamp(12px,1.9vw,26px);overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:none;padding-bottom:2px}
.nav::-webkit-scrollbar{display:none}
.nav a{font-family:var(--mono);font-size:12px;letter-spacing:.05em;text-decoration:none;color:var(--ink-soft);white-space:nowrap;padding-bottom:3px;border-bottom:1px solid transparent}
.nav a:hover{color:var(--survey)}
.nav a[aria-current="page"]{color:var(--ink);border-bottom-color:var(--ink)}
@media (max-width:820px){
  .top-in{flex-direction:column;align-items:flex-start;gap:9px}
  .nav{width:100%;margin-left:-2px}
}

/* ---------- page header ---------- */
.phead{padding-top:clamp(40px,6vw,80px);padding-bottom:clamp(22px,3vw,36px)}
.eyebrow{font-family:var(--mono);font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--ink-soft);margin:0 0 20px}
h1{font-family:var(--display);font-weight:800;font-size:clamp(36px,6.2vw,74px);line-height:1;letter-spacing:-.025em;margin:0 0 14px;max-width:16ch}
.home h1{font-size:clamp(40px,7.4vw,88px);line-height:.98;max-width:14ch}
.heading-mark{width:32px;height:32px;display:block;margin:0 0 14px;color:var(--ink)}
.heading-mark svg{display:block;width:100%;height:100%}
.sec-head.has-mark{display:grid;grid-template-columns:30px minmax(0,1fr);column-gap:14px;align-items:start}
.sec-head.has-mark .section-mark{grid-row:1 / span 2;width:28px;height:28px;color:var(--ink);margin-top:1px}
.sec-head.has-mark .section-mark svg{display:block;width:100%;height:100%}
.sec-head.has-mark .sec-num,.sec-head.has-mark h2{grid-column:2}
.dek{max-width:58ch;font-size:1.05em;color:var(--ink-soft);margin:0}
.lede{max-width:60ch;font-size:1.06em;margin:0 0 26px}
.lede strong{font-weight:500}
.role{font-family:var(--display);font-weight:500;font-size:clamp(19px,2.3vw,27px);line-height:1.25;letter-spacing:-.01em;color:var(--ink-soft);margin:0 0 28px;max-width:26ch}
.role.hero-role{max-width:38ch}
.argument-lead{font-family:var(--display);font-weight:500;font-size:1.16em;line-height:1.35;letter-spacing:-.01em;color:var(--ink-soft);max-width:40ch}

.actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.btn{display:inline-block;font-family:var(--mono);font-size:12.5px;letter-spacing:.08em;text-transform:uppercase;padding:13px 20px;border:1px solid var(--ink);text-decoration:none;background:var(--ink);color:var(--paper);transition:background .18s ease,color .18s ease}
.btn:hover{background:var(--survey);border-color:var(--survey);color:#fff}
.btn.ghost{background:transparent;color:var(--ink)}
.btn.ghost:hover{background:var(--ink);color:var(--paper)}

.status{display:inline-flex;align-items:center;gap:9px;font-family:var(--mono);font-size:12px;letter-spacing:.05em;color:var(--ink-soft);border:1px solid var(--rule);padding:8px 13px;margin-bottom:26px;background:rgba(237,240,234,.6)}
.status i{width:7px;height:7px;background:var(--survey);border-radius:50%;display:block;flex:none}

/* ---------- plot ---------- */
.plot-block{padding-bottom:clamp(40px,6vw,72px)}
.plot-head{display:flex;justify-content:space-between;align-items:baseline;gap:16px;flex-wrap:wrap;border-top:1px solid var(--ink);padding-top:14px;margin-bottom:6px}
.plot-title{font-family:var(--mono);font-size:12px;letter-spacing:.14em;text-transform:uppercase;margin:0}
.plot-note{font-family:var(--mono);font-size:11.5px;color:var(--ink-soft);margin:0}
.plot-scroll{overflow-x:auto;overflow-y:hidden;-webkit-overflow-scrolling:touch;padding-bottom:6px}
.plot-scroll svg{display:block;width:100%;min-width:720px;height:auto}
.tick{font-family:var(--mono);font-size:11px;fill:var(--ink-soft)}
.band-label{font-family:var(--mono);font-size:10.5px;letter-spacing:.12em;fill:var(--ink-soft)}
.stem{stroke:var(--rule);stroke-width:1}
.axis{stroke:var(--ink);stroke-width:1}
.gridline{stroke:var(--rule);stroke-width:1;stroke-dasharray:2 5}
.pt{fill:var(--paper);stroke:var(--ink);stroke-width:1.6;cursor:pointer;transition:fill .15s ease,stroke .15s ease}
.pt:hover,.pt:focus{fill:var(--survey);stroke:var(--survey);outline:none}
.pt.key{fill:var(--ochre);stroke:var(--ochre)}
.pt.key:hover,.pt.key:focus{fill:var(--survey);stroke:var(--survey)}
.pt-label{font-family:var(--mono);font-size:10.5px;fill:var(--ink);pointer-events:none;opacity:0;transition:opacity .15s ease}
.pt-label.on{opacity:1}
.readout{border-bottom:1px solid var(--rule);border-top:1px solid var(--rule);padding:11px 0;margin-top:4px;min-height:54px;font-family:var(--mono);font-size:12.5px;color:var(--ink-soft);line-height:1.5}
.readout b{color:var(--ink);font-weight:500}
details.aslist{margin-top:16px}
details.aslist summary{font-family:var(--mono);font-size:12px;letter-spacing:.06em;color:var(--ink-soft);cursor:pointer}
details.aslist ul{font-family:var(--mono);font-size:13px;line-height:1.8;padding-left:18px;color:var(--ink-soft)}

/* ---------- sections ---------- */
section{padding-top:clamp(40px,5vw,72px);padding-bottom:clamp(4px,1vw,12px);scroll-margin-top:120px}
.sec-head{border-top:1px solid var(--ink);padding-top:14px;margin-bottom:32px}
.sec-num{display:block;font-family:var(--mono);font-size:11.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--ink-soft);margin-bottom:6px}
h2{font-family:var(--display);font-weight:700;font-size:clamp(26px,3.4vw,40px);line-height:1.05;letter-spacing:-.02em;margin:0}

.two{display:grid;grid-template-columns:1fr;gap:clamp(20px,3vw,44px)}
@media (min-width:860px){.two{grid-template-columns:minmax(0,1.15fr) minmax(0,1fr)}}
.prose p{max-width:62ch}
.prose p:first-child{margin-top:0}
.wide-prose{max-width:76ch}
.wide-prose p{max-width:70ch}

.card{background:rgba(237,240,234,.86);border:1px solid var(--rule);padding:22px}
.card + .card{margin-top:14px}
.card h3{font-family:var(--display);font-weight:600;font-size:19px;letter-spacing:-.01em;margin:0 0 10px}
.card p{margin:0 0 10px;font-size:.94em;color:var(--ink-soft)}
.card p:last-child{margin-bottom:0}

.entry{border-top:1px solid var(--rule);padding:26px 0;display:grid;grid-template-columns:1fr;gap:10px}
@media (min-width:860px){.entry{grid-template-columns:158px minmax(0,1fr);gap:32px}}
.entry:last-of-type{border-bottom:1px solid var(--rule)}
.entry-meta{font-family:var(--mono);font-size:12px;color:var(--ink-soft);line-height:1.6}
.entry-meta .yr{color:var(--ink);display:block}
.entry h3{font-family:var(--display);font-weight:700;font-size:clamp(21px,2.3vw,27px);letter-spacing:-.015em;line-height:1.15;margin:0 0 10px}
.entry h4{font-family:var(--mono);font-size:10.5px;line-height:1.4;letter-spacing:.13em;text-transform:uppercase;color:var(--survey);margin:22px 0 6px}
.entry p{margin:0 0 12px;max-width:62ch}
.entry p:last-child{margin-bottom:0}
.leadership-entry{background:rgba(237,240,234,.52);padding-left:clamp(14px,2vw,24px);padding-right:clamp(14px,2vw,24px);border-left:3px solid var(--survey)}
.impact-list{max-width:62ch;margin:0 0 18px;padding-left:20px}
.impact-list li{margin-bottom:7px}
.inline-section{margin-top:clamp(52px,7vw,88px)}
.tags{display:flex;flex-wrap:wrap;gap:7px;margin-top:14px}
.tag{font-family:var(--mono);font-size:11px;letter-spacing:.05em;border:1px solid var(--rule);padding:4px 9px;color:var(--ink-soft)}

.figs{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1px;background:var(--rule);position:relative;border:1px solid var(--rule)}
@media (min-width:760px){.figs{grid-template-columns:repeat(4,minmax(0,1fr))}}
.fig{background:rgba(223,228,220,.92);padding:20px 18px}
.fig-link{color:inherit;text-decoration:none;transition:background-color .18s ease}
.fig-link:hover,.fig-link:focus-visible{background:var(--paper)}
.fig .n{font-family:var(--display);font-weight:800;font-size:clamp(28px,3.4vw,40px);letter-spacing:-.03em;line-height:1;display:block}
.fig .l{font-family:var(--mono);font-size:11px;letter-spacing:.05em;color:var(--ink-soft);display:block;margin-top:9px;line-height:1.45}
.proof-block{padding-top:clamp(8px,2vw,20px);padding-bottom:clamp(8px,2vw,20px)}

/* homepage positioning */
.cap-grid{display:grid;grid-template-columns:1fr;gap:14px}
@media (min-width:760px){.cap-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
.cap-grid .card{margin:0;min-height:100%}

.feature-grid{display:grid;grid-template-columns:1fr;gap:14px}
@media (min-width:900px){.feature-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
.feature-card{background:rgba(237,240,234,.86);border:1px solid var(--rule);padding:24px 22px;display:flex;flex-direction:column}
.feature-meta{font-family:var(--mono);font-size:10.5px;letter-spacing:.10em;text-transform:uppercase;color:var(--ink-soft);display:block;margin-bottom:14px}
.feature-card h3{font-family:var(--display);font-weight:700;font-size:clamp(21px,2.2vw,27px);line-height:1.1;letter-spacing:-.015em;margin:0 0 14px}
.feature-card p{font-size:.94em;color:var(--ink-soft);margin:0 0 12px}
.feature-card a,.capacity-card a{font-family:var(--mono);font-size:11.5px;color:var(--survey);text-decoration:none;margin-top:auto;padding-top:8px}
.feature-card a:hover,.capacity-card a:hover{text-decoration:underline;text-underline-offset:3px}
.approach-summary{align-items:start}
.capacity-card{border-top:3px solid var(--survey)}

.workwith-grid{display:grid;grid-template-columns:1fr;border-top:1px solid var(--rule)}
@media (min-width:850px){.workwith-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
.workwith-grid article{padding:20px 20px 20px 0;border-bottom:1px solid var(--rule)}
@media (min-width:850px){.workwith-grid article{padding:20px;border-right:1px solid var(--rule)}.workwith-grid article:first-child{padding-left:0}.workwith-grid article:last-child{border-right:0}}
.workwith-grid h3{font-family:var(--display);font-weight:700;font-size:20px;line-height:1.15;margin:0 0 9px}
.workwith-grid p{font-size:.94em;color:var(--ink-soft);margin:0}

.stack{list-style:none;margin:0;padding:0}
.stack li{border-top:1px solid var(--rule);padding:15px 0;display:grid;grid-template-columns:1fr;gap:4px}
@media (min-width:700px){.stack li{grid-template-columns:118px minmax(0,1fr);gap:24px;align-items:baseline}}
.stack li:last-child{border-bottom:1px solid var(--rule)}
.stack .k{font-family:var(--mono);font-size:12px;color:var(--ink-soft)}
.stack .v{font-size:.98em}
.stack .v span.sub{display:block;font-family:var(--mono);font-size:11.5px;color:var(--ink-soft);margin-top:5px;line-height:1.55}
.cols{columns:1;column-gap:44px}
@media (min-width:820px){.cols{columns:2}}
.cols li{break-inside:avoid}

/* signposts on home */
.posts{display:grid;grid-template-columns:1fr;gap:1px;background:var(--rule);position:relative;border:1px solid var(--rule)}
@media (min-width:700px){.posts{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:1000px){.posts{grid-template-columns:repeat(3,minmax(0,1fr))}}
.post{background:rgba(223,228,220,.9);padding:24px 22px 26px;text-decoration:none;display:block;transition:background .18s ease}
.post:hover{background:rgba(237,240,234,.97);color:var(--ink)}
.post .pn{font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-soft);display:block;margin-bottom:12px}
.post h3{font-family:var(--display);font-weight:700;font-size:23px;letter-spacing:-.015em;margin:0 0 8px;line-height:1.1}
.post p{margin:0;font-size:.92em;color:var(--ink-soft)}
.post .go{font-family:var(--mono);font-size:11.5px;color:var(--survey);display:block;margin-top:14px}

/* next-page pager */
.pager{border-top:1px solid var(--ink);margin-top:clamp(48px,6vw,80px);padding:22px 0 0;display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;align-items:baseline}
.pager .lb{font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-soft);display:block;margin-bottom:5px}
.pager a{font-family:var(--display);font-weight:600;font-size:clamp(20px,2.4vw,28px);letter-spacing:-.015em;text-decoration:none}
.pager a:hover{color:var(--survey)}

/* contact */
.contact-grid{display:grid;grid-template-columns:1fr;gap:26px;border-top:1px solid var(--ink);padding-top:34px}
@media (min-width:860px){.contact-grid{grid-template-columns:minmax(0,1.2fr) minmax(0,1fr)}}
.cx{font-family:var(--mono);font-size:13px;line-height:2;color:var(--ink-soft)}
.cx a{color:var(--ink)}
.cx .lbl{display:inline-block;width:82px;color:var(--ink-soft)}
.form-layout{display:grid;grid-template-columns:1fr;gap:34px}
@media (min-width:860px){.form-layout{grid-template-columns:minmax(0,1.45fr) minmax(250px,.7fr);gap:56px}}
.contact-form{display:grid;grid-template-columns:1fr;gap:18px}
@media (min-width:700px){.contact-form{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px 24px}}
.form-row{display:flex;flex-direction:column;gap:7px}
.form-wide{grid-column:1/-1}
.contact-form label{font-family:var(--mono);font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-soft)}
.contact-form .optional{font-size:10px;letter-spacing:0;text-transform:none;margin-left:5px}
.contact-form input,.contact-form select,.contact-form textarea{width:100%;border:1px solid var(--rule);border-radius:0;background:rgba(255,255,255,.36);color:var(--ink);font:inherit;padding:12px 13px}
.contact-form textarea{resize:vertical;min-height:150px}
.contact-form input:focus,.contact-form select:focus,.contact-form textarea:focus{outline:2px solid var(--survey);outline-offset:2px;border-color:var(--survey)}
.form-submit{display:flex;align-items:flex-start;gap:14px;flex-wrap:wrap}
.form-note,.form-status{font-family:var(--mono);font-size:11px;line-height:1.55;color:var(--ink-soft);max-width:58ch;margin:0}
.form-status{width:100%;color:var(--survey)}
.form-trap{position:absolute;left:-10000px;width:1px;height:1px;overflow:hidden}
.form-aside{border-top:1px solid var(--ink);padding-top:20px}
.form-aside h3{font-family:var(--display);font-size:22px;margin:0 0 12px}
.form-aside p{font-size:.94em;color:var(--ink-soft)}
.form-aside a{font-family:var(--mono);font-size:12px}

/* CTA band */
.cta{position:relative;overflow:hidden;background:var(--ink);color:var(--paper);margin-top:clamp(48px,6vw,84px);padding:clamp(34px,5vw,60px) 0}
.cta::before{content:"";position:absolute;inset:0;background:url("contour.svg") center/cover no-repeat;filter:invert(1);opacity:.16;pointer-events:none}
.cta > *{position:relative;z-index:1}
.cta h2{color:var(--paper);margin-bottom:12px}
.cta p{max-width:52ch;color:#C6D0C9;margin:0 0 22px}
.cta .btn{background:var(--paper);color:var(--ink);border-color:var(--paper)}
.cta .btn:hover{background:var(--survey);border-color:var(--survey);color:#fff}
.cta .btn.ghost{background:transparent;color:var(--paper);border-color:#5C6D66}
.cta .btn.ghost:hover{background:var(--paper);color:var(--ink);border-color:var(--paper)}

footer{border-top:1px solid var(--rule);padding:22px 0 40px;font-family:var(--mono);font-size:11.5px;color:var(--ink-soft);display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap}
footer a{color:var(--ink-soft)}

.rise{opacity:0;transform:translateY(14px);transition:opacity .6s ease,transform .6s ease}
.rise.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .rise{opacity:1;transform:none;transition:none}
  .pt{transition:none}
}

/* ---------- print ----------
   Someone will print this, or save it to PDF, from a hiring committee.
   Strip the furniture, keep the content, expose link targets. */
@media print{
  body{background:#fff;color:#000;font-size:10.5pt;line-height:1.45}
  body::before,.cta::before{display:none}
  .top,.pager,.posts,.cta,.plot-note,details.aslist{display:none}
  .wrap{max-width:none;padding:0 12mm}
  a{color:#000;text-decoration:none}
  main a[href^="http"]::after{content:" (" attr(href) ")";font-family:monospace;font-size:8pt;color:#444}
  .card,.fig,.post{background:none;border:1px solid #bbb}
  h1{font-size:24pt}h2{font-size:14pt}
  .heading-mark,.section-mark{color:#000}
  section,.entry,.plot-block{page-break-inside:avoid;opacity:1;transform:none}
  .entry,.stack li,.sec-head{page-break-inside:avoid}
  footer{border-top:1px solid #bbb}
  .rise{opacity:1;transform:none}
}

/* ---------- reduce motion is handled above; this covers forced-colors ---------- */
@media (forced-colors:active){
  .pt,.tag,.card,.fig{forced-color-adjust:none}
}

/* ---------- system diagrams ---------- */
.sysdia{margin:24px 0 4px;padding:0}
.sysdia-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid var(--rule);background:rgba(223,228,220,.72);padding:18px 16px}
.sysdia-scroll svg{display:block;width:100%;min-width:760px;height:auto}
.sysdia figcaption{font-size:.86em;color:var(--ink-soft);margin-top:10px;max-width:62ch;line-height:1.5}
@media (max-width:700px){
  .sysdia-scroll{padding:12px 10px}
  .sysdia-scroll::after{content:"";display:block}
}
@media print{
  .sysdia-scroll{overflow:visible;background:none;border:1px solid #bbb}
  .sysdia-scroll svg{min-width:0}
}