:root { --bg: #ffffff; --fg: #1f1d2b; --muted: #6b6880; --accent: #5b3fc4; --rule: #e6e3f0; }
@media (prefers-color-scheme: dark) {
  :root { --bg: #16141f; --fg: #ece9f6; --muted: #a29fb6; --accent: #b4a2ff; --rule: #2c2940; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 16px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; }
main { max-width: 720px; margin: 0 auto; padding: 32px 16px 64px; }
nav { font-size: 14px; color: var(--muted); padding-bottom: 16px; border-bottom: 1px solid var(--rule); }
nav a[aria-current] { color: var(--fg); font-weight: 600; text-decoration: none; }
h1 { font-size: 30px; line-height: 1.2; margin: 28px 0 8px; }
h2 { font-size: 19px; margin: 32px 0 8px; }
.meta { color: var(--muted); font-size: 14px; margin-top: 0; }
a { color: var(--accent); overflow-wrap: anywhere; }
ul { padding-left: 22px; }
li { margin: 6px 0; }
h3 { font-size: 16px; margin: 20px 0 4px; }