:root {
  --bg: #F1F4F5;
  --ink: #182028;
  --muted: #55636F;
  --accent: #2F7A6B;
  --line: #C9D2D7;
  --faint: #E2E8EB;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0F1519;
    --ink: #DCE4E9;
    --muted: #8FA0AC;
    --accent: #57B39E;
    --line: #2A353D;
    --faint: #1A232A;
  }
}
:root[data-theme="dark"] {
  --bg: #0F1519;
  --ink: #DCE4E9;
  --muted: #8FA0AC;
  --accent: #57B39E;
  --line: #2A353D;
  --faint: #1A232A;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; }
body {
  background: var(--bg);
  color: var(--ink);
  font-family: "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua", Georgia, serif;
  font-size: 1.0625rem;
  line-height: 1.65;
}
.mono {
  font-family: ui-monospace, "SF Mono", "Cascadia Mono", Menlo, Consolas, monospace;
}
a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 0.2em; }
a:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
.wrap {
  max-width: 42rem;
  margin: 0 auto;
  padding: 0 1.25rem 5rem;
}
header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  padding: 1.5rem 0 1rem;
  border-bottom: 1px solid var(--line);
  margin-bottom: 4.5rem;
}
.wordmark, .eyebrow {
  font-family: ui-monospace, "SF Mono", "Cascadia Mono", Menlo, Consolas, monospace;
  font-size: 0.8125rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.wordmark { color: var(--ink); }
h1.lede {
  margin: 0;
  font-size: 1.1875rem;
  font-weight: 400;
  max-width: 36rem;
}
section { margin-top: 4.5rem; }
.eyebrow {
  display: block;
  color: var(--accent);
  margin-bottom: 1.25rem;
}
section > p { max-width: 36rem; }
section > p + p { margin-top: 1rem; }
.threads { display: grid; gap: 2rem; }
.threads h2 { font-size: 1.1875rem; font-weight: 600; margin-bottom: 0.375rem; }
.threads p { color: var(--muted); max-width: 34rem; }
.threads .proto {
  display: block;
  margin-top: 0.5rem;
  font-size: 0.8125rem;
  color: var(--accent);
  letter-spacing: 0.02em;
}
.projects { margin-top: 1.75rem; }
.projects h2 { font-size: 1rem; letter-spacing: 0.01em; }
figure { margin-top: 2rem; }
.diagram {
  border: 1px solid var(--line);
  background: var(--faint);
  border-radius: 2px;
  padding: 1.5rem 1rem 1rem;
  overflow-x: auto;
}
.diagram svg { display: block; width: 100%; min-width: 34rem; height: auto; }
figcaption {
  margin-top: 0.75rem;
  font-size: 0.9375rem;
  color: var(--muted);
  max-width: 34rem;
}
.d-label { font: 0.75rem ui-monospace, "SF Mono", Menlo, Consolas, monospace; fill: var(--ink); }
.d-sub { font: 0.6875rem ui-monospace, "SF Mono", Menlo, Consolas, monospace; fill: var(--muted); }
.d-node { fill: none; stroke: var(--ink); stroke-width: 1.25; }
.d-mediator { fill: none; stroke: var(--accent); stroke-width: 1.25; }
.d-arrow { stroke: var(--muted); stroke-width: 1.25; fill: none; }
.d-arrowhead { fill: var(--muted); }
footer {
  margin-top: 5rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  font-size: 0.9375rem;
  color: var(--muted);
}
@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}

/* posts */
article h1 { font-size: 1.75rem; font-weight: 600; line-height: 1.25; margin: 0.5rem 0 0.5rem; max-width: 36rem; }
article .meta { color: var(--muted); font-size: 0.9375rem; margin-bottom: 2.5rem; }
.body { max-width: 36rem; }
.body p, .body ul, .body ol, .body pre, .body blockquote { margin-top: 1rem; }
.body h2 { font-size: 1.1875rem; font-weight: 600; margin-top: 2.5rem; }
.body ul, .body ol { padding-left: 1.5rem; }
.body li + li { margin-top: 0.375rem; }
.body pre, .body code { font-family: ui-monospace, "SF Mono", "Cascadia Mono", Menlo, Consolas, monospace; font-size: 0.875em; }
.body pre { background: var(--faint); border: 1px solid var(--line); border-radius: 2px; padding: 0.875rem 1rem; overflow-x: auto; line-height: 1.5; }
.body img { max-width: 100%; height: auto; display: block; margin-top: 1.5rem; }
.body blockquote { border-left: 2px solid var(--line); padding-left: 1rem; color: var(--muted); }
.fact { margin-top: 4.5rem; padding-top: 1.5rem; border-top: 1px solid var(--line); max-width: 36rem; }
.fact p + p, .fact dl + p { margin-top: 1rem; }
.fact dl { margin-top: 1rem; font-size: 0.8125rem; display: grid; grid-template-columns: max-content 1fr; gap: 0.375rem 1rem; }
.fact dt { color: var(--muted); }
.fact dd { overflow-wrap: anywhere; }
.fact dd a + a::before { content: " · "; color: var(--muted); }
.fact code { font-size: 0.875em; }
.writing { display: grid; gap: 1.75rem; }
.writing h2 { font-size: 1.1875rem; font-weight: 600; margin-bottom: 0.25rem; }
.writing .meta { color: var(--muted); font-size: 0.875rem; margin-bottom: 0.375rem; }
.writing p { max-width: 34rem; }
.key { margin-top: 1.25rem; font-size: 0.8125rem; color: var(--muted); overflow-wrap: anywhere; }