:root { color-scheme: dark; --ink: #050506; --panel: #1c1c20; --text: #f2f2f5; --muted: #8e8e98; --accent: #3fe3ae; }
* { box-sizing: border-box; }
body { margin: 0; background: var(--ink); color: var(--text); font: 17px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; }
main { max-width: 720px; margin: 0 auto; padding: 48px 24px 80px; }
h1 { font-size: 2.2rem; line-height: 1.2; margin: 0 0 8px; }
h2 { font-size: 1.25rem; margin: 36px 0 8px; }
p, li { color: var(--text); }
.muted { color: var(--muted); }
a { color: var(--accent); }
code { background: var(--panel); padding: 1px 6px; border-radius: 6px; font-size: 0.9em; }
nav { display: flex; gap: 20px; margin-bottom: 40px; font-weight: 600; }
nav a { text-decoration: none; }
.card { background: var(--panel); border-radius: 18px; padding: 4px 20px; margin-top: 16px; }
footer { margin-top: 56px; color: var(--muted); font-size: 0.9rem; }