:root{
  --pico-font-family: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
  --pico-font-size: 16px;
  --pico-line-height: 1.62;
  --pico-border-radius: 3px;
  --paper: #f7f6f1;
  --ink: #1c2530;
  --ink-soft: #475063;
  --rule: #d8d4c5;
  --accent: #1e4a82;
  --accent-soft: #e6ecf5;
  --warn: #8a6d1f;
}
html, body{
  background: var(--paper);
  color: var(--ink);
}
body{
  font-family: var(--pico-font-family);
  max-width: 960px;
  margin: 0 auto;
  padding: 0 1.25rem 4rem;
  letter-spacing: 0.005em;
}
header.masthead{
  border-bottom: 1px solid var(--rule);
  padding: 1.4rem 0 1.1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.8rem;
}
.brand{
  display: flex; align-items: center; gap: .65rem;
  font-weight: 600; font-size: 1.02rem; letter-spacing: .01em;
  color: var(--ink); text-decoration: none;
}
.brand svg{ display:block; }
.brand small{ color: var(--ink-soft); font-weight: 400; display:block; font-size:.74rem; letter-spacing:.04em; text-transform:uppercase; margin-top:1px;}
nav.topnav a{
  color: var(--ink-soft);
  text-decoration: none;
  font-size: .93rem;
  margin-left: 1.15rem;
  border-bottom: 1px solid transparent;
  padding-bottom: 2px;
}
nav.topnav a:hover{ color: var(--accent); border-bottom-color: var(--accent); }
.crumbs{
  font-size: .8rem; color: var(--ink-soft);
  margin: -.6rem 0 1.4rem;
}
.crumbs a{ color: var(--ink-soft); }
.crumbs span{ margin: 0 .35rem; }
h1{
  font-size: 1.85rem;
  font-weight: 600;
  line-height: 1.25;
  border-bottom: 2px solid var(--ink);
  padding-bottom: .55rem;
  margin: .2rem 0 1rem;
  letter-spacing: -.005em;
}
h2{
  font-size: 1.22rem;
  font-weight: 600;
  margin-top: 2.2rem;
  margin-bottom: .7rem;
  border-bottom: 1px solid var(--rule);
  padding-bottom: .25rem;
}
h3{
  font-size: 1.02rem;
  font-weight: 600;
  margin-top: 1.4rem; margin-bottom: .35rem;
  color: var(--ink);
}
p, li{ color: var(--ink); }
.lede{
  font-size: 1.05rem;
  color: var(--ink-soft);
  border-left: 3px solid var(--accent);
  padding: .15rem 0 .15rem 1rem;
  margin: 1rem 0 1.6rem;
  background: var(--accent-soft);
  border-radius: 0 3px 3px 0;
}
.infobox{
  float: right;
  width: 280px;
  margin: 0 0 1rem 1.3rem;
  border: 1px solid var(--rule);
  background: #fff;
  padding: .85rem 1rem;
  font-size: .87rem;
  border-radius: 3px;
}
.infobox h4{
  margin: 0 0 .55rem;
  font-size: .82rem;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--ink-soft);
  border-bottom: 1px solid var(--rule);
  padding-bottom: .3rem;
}
.infobox dl{ margin: 0; }
.infobox dt{ font-weight: 600; color: var(--ink); margin-top: .35rem; font-size:.82rem;}
.infobox dd{ margin: 0 0 .3rem; color: var(--ink-soft); font-size:.85rem;}
table{
  border-collapse: collapse;
  width: 100%;
  font-size: .92rem;
  margin: 1rem 0 1.4rem;
  background: #fff;
  border: 1px solid var(--rule);
}
th, td{
  text-align: left;
  padding: .55rem .75rem;
  border-bottom: 1px solid var(--rule);
  vertical-align: top;
}
th{
  background: #efece1;
  font-weight: 600;
  font-size: .85rem;
  letter-spacing: .02em;
}
tr:last-child td{ border-bottom: none; }
code, pre{
  background: #eeeae0;
  color: #2b3340;
  font-size: .88em;
  border-radius: 2px;
  padding: 1px 5px;
}
pre{ padding: .8rem 1rem; overflow:auto; }
.toc{
  border: 1px solid var(--rule);
  background: #fff;
  padding: .75rem 1.1rem .9rem;
  margin: 1.2rem 0 1.8rem;
  font-size: .92rem;
  border-radius: 3px;
}
.toc h4{
  margin:0 0 .4rem; font-size: .8rem;
  text-transform: uppercase; letter-spacing: .06em; color: var(--ink-soft);
}
.toc ol{ margin: 0 0 0 1.15rem; padding: 0; }
.toc li{ margin: .1rem 0; }
.toc a{ color: var(--accent); text-decoration: none; }
.toc a:hover{ text-decoration: underline; }
.cta-row{
  margin: 2.4rem 0 1rem;
  padding: 1.1rem 1.2rem;
  background: #fff;
  border: 1px solid var(--rule);
  border-left: 4px solid var(--accent);
  display: flex; justify-content: space-between; align-items: center;
  gap: 1rem; border-radius: 3px;
}
.cta-row p{ margin: 0; font-size: .96rem; color: var(--ink-soft); }
.cta-btn{
  background: var(--accent);
  color: #fff !important;
  padding: .65rem 1.15rem;
  text-decoration: none;
  font-weight: 600;
  font-size: .92rem;
  border-radius: 3px;
  letter-spacing: .015em;
  white-space: nowrap;
  border: 1px solid #163866;
}
.cta-btn:hover{ background: #163866; }
.note{
  font-size: .84rem;
  color: var(--ink-soft);
  border-top: 1px solid var(--rule);
  padding-top: .7rem;
  margin-top: 1.7rem;
}
footer.sitefoot{
  margin-top: 3.2rem; padding-top: 1rem;
  border-top: 1px solid var(--rule);
  display: flex; justify-content: space-between; flex-wrap: wrap;
  gap: .6rem; color: var(--ink-soft); font-size: .82rem;
}
footer.sitefoot a{ color: var(--ink-soft); }
@media (max-width: 620px){
  body{ padding: 0 .9rem 3rem; }
  header.masthead{ flex-direction: column; align-items: flex-start; gap: .55rem; padding: 1rem 0 .8rem; }
  nav.topnav a{ margin-left: 0; margin-right: 1.1rem; }
  .infobox{ float: none; width: auto; margin: 1rem 0 1.4rem; }
  h1{ font-size: 1.45rem; }
  h2{ font-size: 1.08rem; }
  .cta-row{ flex-direction: column; align-items: stretch; }
  .cta-btn{ display: block; text-align: center; width: 100%; }
}