:root {
  --fg: #1a1a2e; --muted: #5b6072; --bg: #ffffff; --accent: #6d28d9; --border: #ece9f5;
}
@media (prefers-color-scheme: dark) {
  :root { --fg: #ececf5; --muted: #a0a4b8; --bg: #14121c; --accent: #a78bfa; --border: #262235; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--fg);
  font: 17px/1.7 ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
.wrap { max-width: 42rem; margin: 0 auto; padding: 4rem 1.25rem 3rem; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
h1 { font-size: 2.25rem; line-height: 1.15; margin: 0 0 .35rem; letter-spacing: -0.02em; }
h2 { font-size: 1.4rem; margin: 2rem 0 .5rem; }
.tagline { color: var(--muted); font-size: 1.05rem; margin: 0 0 2.5rem; }
.posts { list-style: none; padding: 0; margin: 0; }
.posts li { padding: 1.1rem 0; border-top: 1px solid var(--border); }
.posts li:first-child { border-top: none; }
.posts a { font-size: 1.2rem; font-weight: 600; }
.date { color: var(--muted); font-size: .85rem; margin: .15rem 0 0; }
.back { display: inline-block; margin-bottom: 1.5rem; font-size: .9rem; }
article p { margin: 0 0 1rem; }
.footer { margin-top: 3.5rem; padding-top: 1.25rem; border-top: 1px solid var(--border);
  color: var(--muted); font-size: .85rem; }