:root {
  --ink: #0f1115;
  --ink-soft: #4a4f59;
  --line: #e5e7ec;
  --bg: #ffffff;
  --bg-soft: #f7f7f5;
  --accent: #1f5f4a;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font: 16px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
}
a { color: var(--ink); text-decoration: none; border-bottom: 1px solid transparent; }
a:hover { border-bottom-color: var(--ink); }
.container { max-width: 1080px; margin: 0 auto; padding: 0 24px; }

header.site { border-bottom: 1px solid var(--line); padding: 18px 0; }
header.site .row { display: flex; justify-content: space-between; align-items: center; }
.brand { font-weight: 700; font-size: 18px; letter-spacing: -0.01em; }
.brand a { border-bottom: none; }
.brand .dot { color: var(--accent); }
nav.top a { margin-left: 24px; font-size: 14px; color: var(--ink-soft); }

article.prose { max-width: 720px; padding: 56px 24px 80px; }
article.prose h1 { font-size: 38px; line-height: 1.2; letter-spacing: -0.02em; margin: 0 0 18px; }
article.prose h2 { font-size: 22px; margin: 36px 0 12px; letter-spacing: -0.01em; }
article.prose h3 { font-size: 18px; margin: 28px 0 8px; }
article.prose p, article.prose li { font-size: 16px; line-height: 1.7; color: #1c1f26; }
article.prose .lede { font-size: 19px; color: var(--ink-soft); margin: 0 0 28px; }
article.prose .meta { color: var(--ink-soft); font-size: 14px; margin: 0 0 32px; }
article.prose ul, article.prose ol { padding-left: 22px; }
article.prose blockquote {
  border-left: 3px solid var(--accent);
  margin: 24px 0; padding: 4px 0 4px 18px;
  color: var(--ink-soft); font-style: italic;
}
article.prose code {
  background: var(--bg-soft); padding: 2px 6px; border-radius: 4px;
  font: 14px/1.5 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}
article.prose hr { border: none; border-top: 1px solid var(--line); margin: 36px 0; }

footer.site {
  padding: 36px 0 28px;
  border-top: 1px solid var(--line);
  color: var(--ink-soft);
  font-size: 13px;
}
footer.site .row { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 16px; }
footer.site nav a { margin-left: 18px; }
@media (max-width: 640px) { footer.site nav a { margin: 0 14px 0 0; display: inline-block; } }

/* Blog index */
.blog-list { padding: 56px 0 80px; }
.blog-list h1 { font-size: 36px; margin: 0 0 32px; letter-spacing: -0.02em; }
.entry { padding: 22px 0; border-bottom: 1px solid var(--line); }
.entry .tag { font-size: 11px; text-transform: uppercase; letter-spacing: 0.1em; color: var(--accent); font-weight: 600; }
.entry h2 { font-size: 22px; margin: 6px 0 8px; line-height: 1.3; }
.entry h2 a { border-bottom: none; }
.entry p { color: var(--ink-soft); margin: 0 0 8px; }
.entry .meta { font-size: 12px; color: var(--ink-soft); }