:root { --bg: #f6f9ef; --ink: #2b2a22; --muted: #6b6a5e; --link: #2c6a29; --card: #ffffff; }
@media (prefers-color-scheme: dark) { :root { --bg: #1b2116; --ink: #eef0e6; --muted: #a8ab9c; --link: #9ad97c; --card: #252c1f; } }
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 17px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; }
main { max-width: 680px; margin: 0 auto; padding: 40px 16px 64px; }
h1 { font-size: 2rem; line-height: 1.2; margin: .3em 0; }
h2 { font-size: 1.25rem; margin-top: 2em; }
h3 { font-size: 1.05rem; margin: 1.4em 0 .2em; }
a { color: var(--link); }
.icon { border-radius: 26px; display: block; }
.lead { font-size: 1.1rem; color: var(--muted); }
.meta, .back, .foot { color: var(--muted); font-size: .95rem; }
.foot { margin-top: 3em; }