:root{--font:system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif}
@media (prefers-color-scheme: light), (prefers-color-scheme: no-preference){:root{--bg:#f4f6fa;--accent:#1d4ed8;--accent-text:#ffffff;--menu-bg:#ffffff;--menu-text:#0b1220}}