:root { color-scheme: light dark; }
body { font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif; margin: 0; padding: 40px; line-height: 1.5; }
main { max-width: 880px; margin: 0 auto; }
header { margin-bottom: 24px; }
h1 { margin: 0 0 8px; }
.links { margin: 8px 0 0; }
a { text-decoration: none; }
a:hover { text-decoration: underline; }
.card { border: 1px solid rgba(127,127,127,.35); border-radius: 14px; padding: 18px; }
footer { margin-top: 28px; opacity: .8; }