:root { color-scheme: dark; }
* { box-sizing: border-box; }
body { margin: 0; background: #000; color: #f2f2f2; font: 16px/1.7 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif; }
main { max-width: 760px; padding: 64px 24px; margin: auto; }
h1,h2 { font-family: Georgia,serif; font-weight: 500; line-height: 1.25; }
h1 { font-size: 38px; }
h2 { font-size: 25px; margin-top: 36px; }
p { color: #b3b3b3; }
a { color: #9db8ff; }
nav,footer { display: flex; gap: 20px; flex-wrap: wrap; padding: 24px 0; }
button { border: 0; background: #9db8ff; border-radius: 12px; padding: 12px 22px; font: inherit; cursor: pointer; }