A frosted sign-in card over a full-bleed video, with the same clip playing undimmed inside the card and a submit button ringed by a conic gradient that spins under the cursor.

KEY FEATURES

• ·The background clip and the card's left panel are the same video, one dimmed behind a blur and one at full strength, so the card reads as a window cut through the backdrop
• ·The submit button's rim and its outer glow share a single conic-gradient declaration, so the two can never drift apart when a stop is edited
• ·The rim is a padded gradient box with a black disc laid over it, which gives a thick multi-colour border that a real border property can't express
• ·Rules either side of the divider fade to transparent at the outer edges instead of stopping hard against the padding