:root {
  color-scheme: light;
  --ink: #172033;
  --muted: #5d687a;
  --line: #dfe5ee;
  --paper: #ffffff;
  --wash: #f5f7fb;
  --accent: #3157d5;
  --code: #111827;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font: 17px/1.72 Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}
.site-header, main, footer { width: min(960px, calc(100% - 40px)); margin: 0 auto; }
.site-header { display: flex; align-items: center; justify-content: space-between; padding: 28px 0; border-bottom: 1px solid var(--line); }
.site-title { color: var(--ink); font-weight: 750; text-decoration: none; }
nav { display: flex; gap: 22px; }
nav a, a { color: var(--accent); }
nav a { text-decoration: none; font-size: .94rem; }
main { padding: 56px 0 80px; }
footer { padding: 28px 0 50px; border-top: 1px solid var(--line); color: var(--muted); font-size: .88rem; }
h1, h2, h3 { line-height: 1.25; letter-spacing: -.02em; }
h1 { font-size: clamp(2.1rem, 6vw, 3.75rem); margin: 0 0 20px; }
h2 { margin-top: 2.6em; }
h3 { margin-top: 2em; }
p, li { max-width: 76ch; }
.lede { color: var(--muted); font-size: 1.18rem; max-width: 66ch; }
.eyebrow { color: var(--accent); font-size: .78rem; font-weight: 750; letter-spacing: .12em; text-transform: uppercase; }
.article-list { display: grid; gap: 18px; margin-top: 42px; }
.article-card { padding: 24px; border: 1px solid var(--line); border-radius: 14px; background: linear-gradient(145deg, var(--paper), var(--wash)); }
.article-card h2 { margin: 4px 0 8px; font-size: 1.35rem; }
.article-card p { margin: 0; color: var(--muted); }
.article-card a { color: inherit; text-decoration: none; }
.meta { color: var(--muted); font-size: .9rem; margin-bottom: 36px; }
blockquote { margin: 2rem 0; padding: .2rem 1.3rem; border-left: 4px solid var(--accent); color: var(--muted); }
pre { padding: 18px; overflow-x: auto; border-radius: 10px; background: var(--code); color: #e5e7eb; font-size: .88rem; line-height: 1.55; }
code { font-family: "SFMono-Regular", Consolas, monospace; }
:not(pre) > code { padding: .12em .32em; border-radius: 4px; background: var(--wash); }
img { display: block; max-width: 100%; height: auto; margin: 28px auto 10px; }
table { width: 100%; border-collapse: collapse; margin: 28px 0; font-size: .94rem; }
th, td { padding: 10px 12px; border: 1px solid var(--line); text-align: left; }
th { background: var(--wash); }
.source-note { padding: 14px 18px; border-radius: 10px; background: var(--wash); color: var(--muted); }
@media (max-width: 640px) {
  .site-header { align-items: flex-start; gap: 18px; }
  nav { gap: 12px; }
  body { font-size: 16px; }
}