:root { font-family: system-ui, -apple-system, Segoe UI, Roboto, sans-serif; line-height: 1.55; color: #1a1a1a; }
body { max-width: 720px; margin: 2rem auto; padding: 0 1rem; }
nav a { margin-right: 0.75rem; }
table { border-collapse: collapse; width: 100%; font-size: 0.92rem; margin: 1rem 0; }
th, td { border: 1px solid #ddd; padding: 0.4rem 0.5rem; vertical-align: top; }
th { background: #f3f3f3; }
blockquote { border-left: 3px solid #0b5; margin-left: 0; padding: 0.75rem 1rem; background: #f7fff9; color: #222; }
footer { margin-top: 3rem; padding-top: 1rem; border-top: 1px solid #eee; font-size: 0.85rem; color: #666; }
a { color: #0b57d0; }