:root{
  --bg:#f4f5f7;
  --bg-alt:#ffffff;
  --bg-dark:#23262b;
  --ink:#16181d;
  --ink-2:#656b75;
  --ink-inv:#f4f5f7;
  --blue:#2d5bd6;
  --gold:#c9a00f;
  --rule:#d3d6dc;
  --sans:system-ui,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--sans);
  font-size:17px;
  line-height:1.7;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}

a{color:var(--blue);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
a:hover{text-decoration-thickness:2px}
a:focus-visible,:focus-visible{outline:2px solid var(--blue);outline-offset:3px}

/* ---------- grid ---------- */
.wrap{
  width:100%;
  max-width:1180px;
  margin:0 auto;
  padding:0 24px;
}
.grid{
  display:grid;
  grid-template-columns:repeat(12,1fr);
  gap:24px;
}
.c7{grid-column:1 / span 7}
.c9{grid-column:1 / span 9}
.c8{grid-column:1 / span 8}
.c6{grid-column:1 / span 6}

/* ---------- rhythm ---------- */
.band{padding:72px 0}
.band--wide{padding:88px 0}
.band--tall{padding:104px 0}
.band--alt{background:var(--bg-alt)}
.band--dark{background:var(--bg-dark);color:var(--ink-inv)}

/* ---------- header / nav ---------- */
.site-head{
  background:var(--bg-alt);
  border-bottom:1px solid var(--rule);
}
.site-head .wrap{
  display:flex;
  flex-wrap:wrap;
  align-items:baseline;
  gap:8px 32px;
  padding-top:18px;
  padding-bottom:18px;
}
.brand{
  font-size:20px;
  font-weight:700;
  letter-spacing:-.02em;
  color:var(--ink);
  text-decoration:none;
}
.brand:hover{text-decoration:none;color:var(--blue)}
.site-nav ul{
  list-style:none;
  margin:0;padding:0;
  display:flex;flex-wrap:wrap;
  gap:6px 22px;
}
.site-nav a{
  color:var(--ink);
  text-decoration:none;
  font-size:15px;
  padding:4px 0;
  border-bottom:2px solid transparent;
  display:inline-block;
}
.site-nav a:hover,.site-nav a[aria-current="page"]{
  color:var(--blue);
  border-bottom-color:var(--blue);
}

/* ---------- hero ---------- */
.hero{
  padding:80px 0 64px;
  position:relative;
}
.hero-inner{
  position:relative;
  padding-left:34px;
}
/* vertical dimension line with end ticks */
.hero-inner::before{
  content:"";
  position:absolute;
  left:8px;top:6px;bottom:6px;
  width:1px;
  background:var(--gold);
}
.hero-inner::after{
  content:"";
  position:absolute;
  left:0;top:6px;
  width:17px;height:1px;
  background:var(--gold);
  box-shadow:0 0 0 0 transparent;
}
.hero-tick-bottom{
  position:absolute;
  left:0;bottom:6px;
  width:17px;height:1px;
  background:var(--gold);
}
h1{
  font-size:clamp(38px,6.2vw,72px);
  line-height:1.04;
  letter-spacing:-.035em;
  font-weight:700;
  margin:0;
  max-width:16ch;
}
h1 .l2{display:block;padding-left:8%}

/* horizontal dimension line under H1 */
.dimline{
  display:flex;
  align-items:center;
  gap:12px;
  margin:30px 0 26px;
  color:var(--ink-2);
  font-size:13px;
  max-width:760px;
}
.dimline::before,.dimline::after{
  content:"";
  flex:1;
  height:1px;
  background:var(--gold);
}
.dimline span{white-space:nowrap;color:var(--ink-2)}

.lede{
  font-size:19px;
  line-height:1.65;
  max-width:60ch;
  margin:0;
}

/* ---------- figure: main ---------- */
.figure-row{
  display:grid;
  grid-template-columns:repeat(12,1fr);
  gap:24px;
  align-items:start;
}
.figure-main{grid-column:1 / span 7;margin:0}
.figure-main img{width:100%;aspect-ratio:5/4;object-fit:cover}
.callout{
  grid-column:9 / span 4;
  position:relative;
  padding-top:14px;
  font-size:13px;
  line-height:1.6;
  color:var(--ink-2);
}
.callout::before{
  content:"";
  position:absolute;
  left:-24px;top:22px;
  width:24px;height:1px;
  background:var(--gold);
}
.callout b{
  display:block;
  color:var(--ink);
  font-size:13px;
  font-weight:700;
  margin-bottom:4px;
}

/* ---------- headings ---------- */
h2{
  font-size:clamp(24px,3vw,32px);
  line-height:1.2;
  letter-spacing:-.02em;
  font-weight:600;
  margin:0 0 6px;
}
h3{
  font-size:19px;
  line-height:1.35;
  font-weight:600;
  margin:32px 0 6px;
}
.secno{
  display:block;
  font-size:13px;
  color:var(--gold);
  font-weight:600;
  margin-bottom:10px;
}
.rule{margin:0 0 28px}
.rule i{display:block;height:1px;background:var(--rule)}
.rule b{display:block;height:3px;width:16.6%;min-width:120px;background:var(--blue);margin-top:5px}
.band--dark .rule i{background:#3a3f47}
.band--dark .rule b{background:var(--gold)}
.band--dark .secno{color:var(--gold)}
.band--dark .lede,.band--dark p{color:#dfe2e7}

p{margin:0 0 18px;max-width:72ch}

/* ---------- lists ---------- */
ul.check,ol.steps{
  max-width:70ch;
  padding-left:0;
  list-style:none;
  margin:0 0 18px;
}
ul.check li{
  position:relative;
  padding-left:22px;
  margin-bottom:10px;
}
ul.check li::before{
  content:"";
  position:absolute;
  left:0;top:.72em;
  width:9px;height:2px;
  background:var(--blue);
}
ol.steps{counter-reset:s}
ol.steps li{
  position:relative;
  padding-left:34px;
  margin-bottom:12px;
  counter-increment:s;
}
ol.steps li::before{
  content:counter(s,decimal-leading-zero);
  position:absolute;left:0;top:0;
  font-size:13px;font-weight:700;
  color:var(--gold);
  line-height:1.9;
}
dl.terms{margin:0;max-width:72ch}
dl.terms dt{font-weight:700;margin-top:18px}
dl.terms dd{margin:2px 0 0}

/* ---------- dark detail section ---------- */
.detail-row{
  display:grid;
  grid-template-columns:repeat(12,1fr);
  gap:24px;
  align-items:start;
}
.detail-text{grid-column:1 / span 6}
.figure-detail{grid-column:8 / span 5;margin:0}
.figure-detail img{width:100%;aspect-ratio:4/5;object-fit:cover}
.figure-detail figcaption{
  font-size:13px;
  line-height:1.55;
  color:#a4abb5;
  margin-top:10px;
}

/* ---------- table-ish text blocks ---------- */
.cols2{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:24px 40px;
  max-width:1000px;
}
.cols2 p{margin-bottom:0}

/* ---------- about ---------- */
.about-line{
  position:relative;
  padding-left:28px;
}
.about-line::before{
  content:"";
  position:absolute;
  left:0;top:0;bottom:0;
  width:1px;
  background:var(--blue);
}
.about-line section{position:relative;margin-bottom:44px}
.about-line section::before{
  content:"";
  position:absolute;
  left:-28px;top:12px;
  width:14px;height:1px;
  background:var(--gold);
}
.about-line section:last-child{margin-bottom:0}

/* ---------- footer ---------- */
.site-foot{
  background:var(--bg-alt);
  padding:56px 0 26px;
  margin-top:0;
}
.foot-rule{margin-bottom:38px}
.foot-rule i{display:block;height:1px;background:var(--rule)}
.foot-rule b{display:block;height:3px;width:160px;background:var(--blue);margin-top:5px}
.foot-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr;
  gap:32px;
}
.foot-name{
  font-size:26px;
  font-weight:700;
  letter-spacing:-.02em;
  margin:0 0 8px;
}
.foot-grid p{font-size:15px;color:var(--ink-2);max-width:40ch;margin:0}
.foot-grid h2,.foot-grid h3{
  font-size:13px;
  font-weight:700;
  margin:0 0 10px;
  letter-spacing:0;
}
.foot-grid ul{list-style:none;margin:0;padding:0}
.foot-grid li{margin-bottom:7px;font-size:15px}
.foot-grid a{color:var(--ink)}
.foot-grid a:hover{color:var(--blue)}
.foot-bottom{
  border-top:1px solid var(--rule);
  margin-top:38px;
  padding-top:16px;
  font-size:13px;
  color:var(--ink-2);
}

/* ---------- responsive ---------- */
@media (max-width:900px){
  .c7,.c9,.c8,.c6{grid-column:1 / -1}
  .figure-main{grid-column:1 / span 9}
  .callout{grid-column:1 / -1;padding-top:12px}
  .callout::before{left:0;top:0;width:60px}
  .detail-text,.figure-detail{grid-column:1 / -1}
  .figure-detail{max-width:420px}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:620px){
  body{font-size:16px}
  .band,.band--wide,.band--tall{padding:48px 0}
  .hero{padding:44px 0 40px}
  .hero-inner{padding-left:22px}
  .hero-inner::before{left:5px}
  .hero-inner::after,.hero-tick-bottom{width:11px}
  h1 .l2{padding-left:0}
  .lede{font-size:17px}
  .figure-main{grid-column:1 / -1}
  .cols2{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
  .wrap{padding:0 18px}
}