:root {
  --bg: #ffffff;
  --fg: #111111;
  --muted: #595959;
  --rule: #d6d6d6;
  --accent: #1f4fbf;
  --visited: #5b3a9e;
  --code-bg: #f3f3f3;
  --serif: Charter, "Bitstream Charter", "Iowan Old Style", "Sitka Text", Cambria, Georgia, serif;
  --sans: -apple-system, "Helvetica Neue", Helvetica, Arial, sans-serif;
  --mono: "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #121212;
    --fg: #e4e4e4;
    --muted: #9a9a9a;
    --rule: #333333;
    --accent: #7fa8ff;
    --visited: #b79cf0;
    --code-bg: #1e1e1e;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 18px/1.55 var(--serif);
}

main {
  max-width: 38rem;
  margin: 0 auto;
  padding: 3rem 1rem 4rem;
}

a { color: var(--accent); text-underline-offset: 0.15em; text-decoration-thickness: 1px; }
a:visited { color: var(--visited); }
a:hover { text-decoration-thickness: 2px; }

h1 { font-size: 2.1rem; line-height: 1.15; margin: 0 0 0.75rem; font-weight: 700; }
h2 { font-size: 1.35rem; line-height: 1.25; margin: 2.5rem 0 0.75rem; font-weight: 700; }
h3 { font-size: 1.1rem; margin: 1.75rem 0 0.5rem; font-style: italic; font-weight: 600; }

p, ul, ol { margin: 0 0 1rem; }
li { margin-bottom: 0.3rem; }

.lead { font-size: 1.1rem; margin-bottom: 1rem; }

.links a + a::before { content: "/ "; color: var(--muted); display: inline-block; white-space: pre; text-decoration: none; }

.back { display: inline-block; margin-bottom: 1.5rem; font-size: 0.95rem; }

.meta { font-style: italic; color: var(--muted); margin-bottom: 1.5rem; }
.meta span + span::before { content: "; "; font-style: normal; }

/* Project list on the home page */
.projects { padding-left: 1.25rem; }
.projects li { margin-bottom: 1.25rem; }
.projects a.title { font-weight: 700; }
.projects .tags { display: inline; font-style: italic; color: var(--muted); font-size: 0.95rem; }
.projects .tags::before { content: " — "; font-style: normal; }
.projects p { margin: 0.2rem 0 0; }

/* Numbers at a glance: a plain list, not a dashboard */
.facts { margin: 0 0 1.5rem; padding-left: 1.25rem; }
.facts div { display: list-item; margin-bottom: 0.2rem; }
.facts strong { margin-right: 0.3em; }

code { font: 0.85em var(--mono); background: var(--code-bg); padding: 0.05em 0.25em; }
pre {
  font: 0.82rem/1.5 var(--mono);
  background: var(--code-bg);
  padding: 0.9rem 1rem;
  overflow-x: auto;
  margin: 0 0 1.25rem;
}
pre code { background: none; padding: 0; }

figure { margin: 1.5rem 0 2rem; }
figure svg { width: 100%; height: auto; display: block; font-family: var(--sans); }
figcaption { font-size: 0.9rem; font-style: italic; color: var(--muted); margin-top: 0.5rem; text-align: center; }

footer { margin-top: 3.5rem; padding-top: 0.75rem; border-top: 1px solid var(--rule); font-size: 0.9rem; color: var(--muted); }

figure svg.tall { display: none; max-width: 22rem; margin: 0 auto; }
@media (max-width: 560px) {
  figure svg.wide { display: none; }
  figure svg.tall { display: block; }
}

figure img { width: 100%; height: auto; display: block; border: 1px solid var(--rule); }