:root {
  color-scheme: light dark;
  --paper: #fbfaf7;
  --ink: #272d2c;
  --quiet: #606963;
  --rule: #d7dbd5;
  --link: #285c4b;
  --wash: #f0f2ec;
  font: 100%/1.65 system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--paper);
  color: var(--ink);
}
@media (prefers-color-scheme: dark) {
  :root { --paper: #191c1b; --ink: #e8eae5; --quiet: #acb6b0; --rule: #3c4741; --link: #a7cfb9; --wash: #252e28; }
}
* { box-sizing: border-box; }
body { margin: 0; }
a { color: var(--link); text-underline-offset: .22em; text-decoration-thickness: 1px; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 2px solid var(--link); outline-offset: 5px; }
main:focus { outline: none; }
h1, h2, h3 { font-family: Georgia, "Times New Roman", serif; font-weight: 400; line-height: 1.25; margin: 0 0 1rem; text-wrap: pretty; }
h1 { font-size: clamp(2rem, 4.5vw, 2.75rem); letter-spacing: -.025em; margin: .75rem 0 1.375rem; }
h2 { font-size: 1.55rem; }
h3 { font-size: 1.3rem; }
p { margin: 0 0 1.125rem; }
img { max-width: 100%; height: auto; }
.site-shell { max-width: 796px; margin: 0 auto; padding: 44px 48px 32px; }
.site-header { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 1rem 2rem; border-bottom: 1px solid var(--rule); padding-bottom: 20px; margin-bottom: 56px; }
.brand { color: var(--ink); font-weight: 500; text-decoration: none; }
.site-header nav, .site-footer nav { display: flex; flex-wrap: wrap; gap: 24px; }
.site-header nav a { color: var(--quiet); font-size: .875rem; text-decoration: none; padding: 6px 0; }
.site-header a[aria-current] { color: var(--ink); text-decoration: underline; }
.eyebrow { font: .75rem/1.6 ui-monospace, SFMono-Regular, Consolas, monospace; text-transform: uppercase; letter-spacing: .08em; color: var(--quiet); margin: 0; }
.lead { font-size: 1.1875rem; line-height: 1.65; max-width: 610px; }
.muted { color: var(--quiet); }
.intro { padding-bottom: 37px; }
.ruled-section { border-top: 1px solid var(--rule); padding: 28px 0 12px; }
.article-listing h2, .article-listing h3 { font-size: 1.45rem; margin: 12px 0; }
.article-meta { color: var(--quiet); font: .75rem/1.8 ui-monospace, SFMono-Regular, Consolas, monospace; }
.focus-list { display: flex; flex-wrap: wrap; gap: 8px 22px; font-size: .875rem; color: var(--quiet); margin: 20px 0 0; padding: 0; list-style: none; }
.site-footer { display: flex; flex-wrap: wrap; gap: 12px 32px; border-top: 1px solid var(--rule); padding-top: 20px; margin-top: 42px; font-size: .8125rem; color: var(--quiet); }
.skip-link { position: absolute; top: 8px; left: 8px; transform: translateY(-200%); background: var(--paper); padding: 12px; z-index: 1; }
.skip-link:focus { transform: none; }
.back-link { display: inline-block; font-size: .875rem; margin-bottom: 30px; }
.article-header h1 { font-size: clamp(2rem, 4.5vw, 2.6rem); }
.article-header .article-meta { margin: 24px 0; }
.toc { margin: 28px 0 36px; padding: 16px 20px; border: 1px solid var(--rule); }
.toc summary { color: var(--link); cursor: pointer; }
.toc ol { padding-left: 22px; margin: 14px 0 0; }
.toc li { padding: 3px 0; }
.prose { overflow-wrap: break-word; }
.prose h2 { margin-top: 2.5rem; scroll-margin-top: 24px; }
.prose h3 { margin-top: 2rem; scroll-margin-top: 24px; }
.about .ruled-section h2 { margin-top: 0; }
.prose li { margin: .35rem 0; }
.prose hr { border: 0; border-top: 1px solid var(--rule); margin: 32px 0; }
.prose blockquote { border-left: 2px solid var(--rule); margin: 24px 0; padding: 8px 18px; color: var(--quiet); }
.prose blockquote p:last-child { margin-bottom: 0; }
code { font: .875em/1.7 ui-monospace, SFMono-Regular, Consolas, monospace; background: var(--wash); padding: .1em .3em; border-radius: 2px; overflow-wrap: anywhere; }
pre { margin: 20px 0; padding: 18px 20px; background: var(--wash); border: 1px solid var(--rule); border-radius: 0; white-space: pre-wrap; overflow-wrap: anywhere; tab-size: 4; }
pre code { font-size: .8125rem; background: none; padding: 0; }
.article-footer { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 20px; margin-top: 40px; padding-top: 24px; border-top: 1px solid var(--rule); font-size: .875rem; }
@media (max-width: 600px) {
  .site-shell { padding: 28px 24px; }
  .site-header { align-items: flex-start; flex-direction: column; gap: 12px; margin-bottom: 40px; }
  .lead { font-size: 1.0625rem; }
  pre { padding: 14px; }
  .site-footer { gap: 12px 24px; }
}
@media (pointer: coarse) { .site-header nav a, .site-footer a, .back-link, .article-footer a, .toc summary { min-height: 44px; display: inline-flex; align-items: center; } }
@media print {
  :root { color-scheme: light; --paper: white; --ink: black; --quiet: #333; --rule: #bbb; --link: black; --wash: #f5f5f5; }
  .site-shell { padding: 0; max-width: none; }
  .site-header nav, .site-footer, .toc, .back-link, .article-footer, .skip-link { display: none; }
  h2, h3 { break-after: avoid; }
}