:root{--color-background:#fff;--color-foreground:#0f172a;--color-primary:#3b82f6;--color-muted:#f8fafc;--color-border:#e2e8f0;--color-card:#fff}.dark{--color-background:#0f172a;--color-foreground:#f8fafc;--color-primary:#60a5fa;--color-muted:#1e293b;--color-border:#334155;--color-card:#1e293b}body{margin:0;font-family:Arial,sans-serif;background-color:var(--color-background);color:var(--color-foreground)}