Create a sleek footer for Darkcave's fitness apparel homepage, focusing on a black and white theme. Incorporate a dynamic hero image and clean typography for a brief about section, emphasizing Darkcave's commitment to high-quality fitness gear. Highlight four product categories with impactful images, encouraging sign-ups and product exploration through a clear call-to-action. Integrate a dynamic black and white video snippet for added engagement. The footer should feature contact info, social links, and a newsletter sign-up, maintaining the bold theme. Conclude with a compelling call-to-action, inviting fitness enthusiasts to conquer workouts with Darkcave's iconic black and white apparel.