:root {
  color-scheme: light;
  --ink: #202725;
  --muted: #66716d;
  --line: #dce3df;
  --paper: #fbfcfa;
  --accent: #176b56;
  --measure: 720px;
}
* { box-sizing: border-box; }
html { background: var(--paper); }
body {
  margin: 0;
  color: var(--ink);
  font: 17px/1.7 system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}
a { color: var(--accent); text-decoration-thickness: .08em; text-underline-offset: .18em; }
a:hover { text-decoration-thickness: .14em; }
.skip-link { position: absolute; left: -9999px; top: 0; }
.skip-link:focus { left: 1rem; z-index: 2; padding: .5rem; background: white; }
.site-header, .site-footer {
  width: min(calc(100% - 2.5rem), 1040px);
  margin: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.site-header { min-height: 88px; border-bottom: 1px solid var(--line); }
.wordmark { color: var(--ink); font-weight: 750; letter-spacing: -.035em; text-decoration: none; font-size: 1.15rem; }
nav { display: flex; gap: 1.4rem; }
nav a { color: var(--muted); text-decoration: none; }
.container { width: min(calc(100% - 2.5rem), var(--measure)); margin: 0 auto; min-height: 65vh; }
.page-heading { padding: clamp(3rem, 8vw, 6rem) 0 2rem; }
.eyebrow, .article-date { color: var(--muted); font-size: .84rem; letter-spacing: .04em; margin: 0 0 .6rem; }
h1, h2 { line-height: 1.15; letter-spacing: -.04em; }
h1 { font-size: clamp(2.5rem, 7vw, 4.2rem); margin: 0 0 1.1rem; }
h2 { font-size: 1.5rem; margin: .15rem 0 .5rem; }
.intro { color: var(--muted); max-width: 42rem; font-size: 1.08rem; }
.article-list { border-top: 1px solid var(--line); }
.article-card { padding: 1.6rem 0 1.8rem; border-bottom: 1px solid var(--line); }
.article-card h2 a { color: var(--ink); text-decoration: none; }
.article-card p:last-child { color: var(--muted); margin: .45rem 0 0; }
.article-heading { padding: clamp(3rem, 8vw, 5rem) 0 1.5rem; }
.article-heading h1 { max-width: 15ch; }
.summary { color: var(--muted); font-size: 1.15rem; max-width: 42rem; }
.prose { max-width: 68ch; }
.prose h2 { margin-top: 2.2rem; }
.prose img { display: block; max-width: 100%; height: auto; margin: 2rem auto; border-radius: 5px; }
.prose blockquote { margin-left: 0; padding-left: 1.2rem; border-left: 3px solid var(--line); color: var(--muted); }
.prose pre { overflow-x: auto; padding: 1rem; background: #eef2ef; border-radius: 6px; font-size: .9rem; }
.back-link { margin-top: 3rem; }
.site-footer { min-height: 100px; margin-top: 4rem; color: var(--muted); font-size: .9rem; border-top: 1px solid var(--line); }
.site-footer a { color: var(--muted); }
@media (max-width: 520px) {
  body { font-size: 16px; }
  .site-header, .site-footer { width: min(calc(100% - 2rem), 1040px); }
  nav { gap: .9rem; }
  .container { width: min(calc(100% - 2rem), var(--measure)); }
}