Wrap the main area in a centered max-w-7xl container and center the max-w-4xl form column inside it, so pages no longer hug the left edge on wide screens. Lists and views center up to 7xl, forms stay at a readable 4xl.
Introduce a --field design token (page background tone) used by inputs, textareas and select triggers, and raise the dark-mode card lightness so cards read as elevated surfaces with inset fields, following the shadcn convention.
Steven RYDELL