body { font-family: system-ui, -apple-system, sans-serif; max-width: 680px; margin: 40px auto; padding: 0 20px 60px; line-height: 1.65; color: #17231f; background: #fff; }
h1 { font-size: 28px; margin-bottom: 4px; }
h2 { font-size: 19px; margin-top: 32px; }
a { color: #315844; }
.meta { color: #6b756f; font-size: 14px; }
nav { margin-top: 40px; font-size: 14px; }