:root {
  color-scheme: light dark;
  --rn-bg: #fbfbf8;
  --rn-fg: #1c1c1a;
  --rn-muted: #66645f;
  --rn-border: #d8d5ce;
  --rn-panel: #f2f0ea;
  --rn-link: #244b76;
  --rn-code: #efede6;
  --rn-max: 820px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --rn-bg: #161614;
    --rn-fg: #ecebe6;
    --rn-muted: #aaa79f;
    --rn-border: #3d3a34;
    --rn-panel: #211f1b;
    --rn-link: #9cc4ef;
    --rn-code: #24221e;
  }
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--rn-bg);
  color: var(--rn-fg);
  font-family: ui-serif, Georgia, Cambria, "Times New Roman", serif;
  line-height: 1.72;
}
a { color: var(--rn-link); text-underline-offset: .16em; }
a:hover { text-decoration-thickness: 2px; }
.rn-site-header, .rn-footer {
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}
.rn-site-header {
  border-bottom: 1px solid var(--rn-border);
  padding: 1rem 1.25rem;
}
.rn-site-header-inner {
  max-width: var(--rn-max);
  margin: 0 auto;
  display: flex;
  gap: .75rem;
  align-items: baseline;
  flex-wrap: wrap;
}
.rn-site-header a { font-weight: 650; text-decoration: none; }
.rn-site-header span { color: var(--rn-muted); }
.rn-container {
  max-width: var(--rn-max);
  margin: 0 auto;
  padding: 3rem 1.25rem 5rem;
}
.rn-back {
  font-family: ui-sans-serif, system-ui, sans-serif;
  margin-bottom: 1.7rem;
  font-size: .94rem;
}
h1, h2, h3 {
  line-height: 1.22;
  text-wrap: balance;
}
h1 { font-size: clamp(2rem, 5vw, 3.25rem); margin: 0 0 1.4rem; }
h2 { margin-top: 3rem; padding-top: .25rem; }
h3 { margin-top: 2rem; }
p, li { font-size: 1.04rem; }
blockquote {
  margin: 1.8rem 0;
  padding: .15rem 0 .15rem 1.25rem;
  border-left: 3px solid var(--rn-border);
  color: var(--rn-muted);
}
pre {
  overflow-x: auto;
  padding: 1rem 1.1rem;
  background: var(--rn-code);
  border: 1px solid var(--rn-border);
  border-radius: .35rem;
  line-height: 1.45;
}
code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: .9em;
}
:not(pre) > code {
  background: var(--rn-code);
  padding: .08em .3em;
  border-radius: .25rem;
}
.rn-meta {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: .65rem 1rem;
  margin: 0 0 2.4rem;
  padding: 1rem 1.1rem;
  background: var(--rn-panel);
  border: 1px solid var(--rn-border);
  border-radius: .45rem;
  font-family: ui-sans-serif, system-ui, sans-serif;
  font-size: .88rem;
}
.rn-meta dt { color: var(--rn-muted); }
.rn-meta dd { margin: .08rem 0 0; }
.rn-note-warning {
  margin: 1.5rem 0 2.5rem;
  padding: 1rem 1.1rem;
  border: 1px solid var(--rn-border);
  border-radius: .45rem;
  font-family: ui-sans-serif, system-ui, sans-serif;
  font-size: .94rem;
}
hr { border: 0; border-top: 1px solid var(--rn-border); margin: 3rem 0; }
.rn-footer {
  border-top: 1px solid var(--rn-border);
  color: var(--rn-muted);
  padding: 1.5rem 1.25rem 2.5rem;
  font-size: .88rem;
}
.rn-footer-inner { max-width: var(--rn-max); margin: 0 auto; }

/* Research Trail diagrams */
.rn-container img { max-width: 100%; height: auto; }
.rn-container img[src$=".svg"] {
  display: block;
  width: 100%;
  margin: 1.5rem auto;
  padding: .75rem;
  background: #fff;
  border: 1px solid var(--rn-border);
  border-radius: .45rem;
}
.rn-artifact-links { font-family: ui-sans-serif, system-ui, sans-serif; font-size: .94rem; }