:root {
  --max-width: 680px;
  --text: #1a1a1a;
  --muted: #6a6a6a;
  --accent: #0057b7;
  --border: #e5e5e5;
  --bg-soft: #fafafa;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  font-family: Charter, "Iowan Old Style", "Sitka Text", Cambria, Georgia, serif;
  font-size: 18px;
  line-height: 1.6;
  color: var(--text);
  background: #fff;
  margin: 0;
  padding: 0 1.25rem;
  -webkit-font-smoothing: antialiased;
}

.site-header,
main,
.site-footer {
  max-width: var(--max-width);
  margin: 0 auto;
}

.site-header { padding: 2rem 0 1.5rem; }
main          { padding: 1rem 0 4rem; }
.site-footer {
  padding: 2rem 0;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.9rem;
}

nav {
  display: flex;
  align-items: baseline;
  gap: 2rem;
  flex-wrap: wrap;
}
.site-name {
  font-weight: 600;
  font-size: 1.15rem;
  text-decoration: none;
  color: var(--text);
}
.nav-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 1.25rem;
}
.nav-links a {
  text-decoration: none;
  color: var(--muted);
}
.nav-links a:hover { color: var(--accent); }

a { color: var(--accent); }
a:hover { text-decoration: underline; }

h1, h2, h3, h4 {
  font-weight: 600;
  line-height: 1.25;
  margin-top: 2em;
  margin-bottom: 0.5em;
}
h1 { font-size: 1.75rem; }
h2 { font-size: 1.35rem; }
h3 { font-size: 1.15rem; }

p, ul, ol { margin: 0 0 1em; }

blockquote {
  border-left: 3px solid var(--border);
  margin: 1.25em 0;
  padding: 0.25em 1em;
  color: var(--muted);
}

code {
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.9em;
  background: var(--bg-soft);
  padding: 0.1em 0.35em;
  border-radius: 3px;
}
pre {
  background: var(--bg-soft);
  padding: 1em;
  border-radius: 4px;
  overflow-x: auto;
  font-size: 0.85em;
  line-height: 1.45;
}
pre code { background: none; padding: 0; }

hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 2.5em 0;
}

.post-title { margin-top: 0.5em; }
.post-meta {
  color: var(--muted);
  font-size: 0.9rem;
  margin-top: -0.25em;
}

.post-list {
  list-style: none;
  padding: 0;
}
.post-list li {
  margin: 0 0 0.85em;
  display: flex;
  gap: 1rem;
  align-items: baseline;
  flex-wrap: wrap;
}
.post-list time {
  color: var(--muted);
  font-size: 0.9rem;
  font-variant-numeric: tabular-nums;
  min-width: 6.5em;
}
.post-list a { text-decoration: none; }
.post-list a:hover { text-decoration: underline; }

img { max-width: 100%; height: auto; }

table {
  border-collapse: collapse;
  margin: 1.25em 0;
  font-size: 0.95em;
}
th, td {
  border: 1px solid var(--border);
  padding: 0.4em 0.75em;
  text-align: left;
}

@media (max-width: 480px) {
  body { font-size: 17px; padding: 0 1rem; }
  .post-list li { flex-direction: column; gap: 0.1em; }
  .post-list time { min-width: 0; }
}