Four-column indigo footer: logo + social, Company, Vendors, Contact (24/7 Support, Jakarta address), copyright bar.

```jsx
<Footer />
```

Uses Primary-700 background. Logo: the **white** Sivali mark with the SIVALI wordmark in white (the default when no `logo` prop is passed). On indigo and every dark ground the logo is always the white version; the indigo mark is only for white and light grounds. Text and links on the indigo footer are white; the 24/7 Support link is mint.