:root {
  color-scheme: light;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.65;
  color: #20332b;
  background: #ffffff;
}
* { box-sizing: border-box; }
body { margin: 0; }
header, main, footer { max-width: 48rem; margin: auto; padding: 1.25rem; }
header { padding-top: 2.5rem; padding-bottom: 0; }
.brand { font-size: 1.1rem; font-weight: 700; letter-spacing: -0.02em; }
h1 { margin: 0.6rem 0; font-size: clamp(1.9rem, 6vw, 2.6rem); line-height: 1.2; letter-spacing: -0.035em; }
h2 { margin-top: 2rem; font-size: 1.4rem; line-height: 1.35; }
h3 { margin-bottom: 0.25rem; font-size: 1.05rem; }
p, ul, ol, dl { margin-top: 0.65rem; }
li { margin: 0.4rem 0; }
dt { margin-top: 1.25rem; font-weight: 700; }
dd { margin: 0.35rem 0 0; }
a { color: #17624f; text-underline-offset: 0.18em; }
a:hover { text-decoration-thickness: 0.13em; }
a:focus-visible { outline: 3px solid #17624f; outline-offset: 4px; border-radius: 2px; }
nav { display: flex; flex-wrap: wrap; gap: 0.65rem 1.25rem; margin: 1.25rem 0; }
.muted { color: #52635a; }
.placeholder { font-family: ui-monospace, monospace; overflow-wrap: anywhere; }
.skip { position: absolute; left: -10000px; }
.skip:focus { left: 1rem; top: 0.5rem; padding: 0.5rem; background: #ffffff; }
section { scroll-margin-top: 1rem; }
section + section { border-top: 1px solid #d7dfda; margin-top: 2.5rem; padding-top: 0.5rem; }
footer { border-top: 1px solid #d7dfda; color: #52635a; font-size: 0.9rem; }
code { font-size: 0.95em; overflow-wrap: anywhere; }
@media (min-width: 44rem) { header, main, footer { padding-left: 2rem; padding-right: 2rem; } }
@media print { nav, .skip { display: none; } header { padding-top: 0; } a { color: inherit; } }