Let me re-read the current state of the positioning code to understand what's still causing the jump.

Now I see the issue. The POS.top is being set correctly, but the #kalshi-ext-root itself has justify-content: flex-end and right: 16px which pins it to the right. The real problem is the expanded card has margin-right: 32px in its CSS, and the #kalshi-ext-root uses justify-content: flex-end which pushes everything to the right. Let me check the root element styles and the collapsed positioning more carefully.

Now let me see the base CSS for #kalshi-ext-root:

Now let me also check the collapsed widget and expanded widget CSS:

Now let me check the expanded widget margin-right and how the JS sets root.style.right:

Now I understand the full picture. The root element is position: fixed; left: 0; width: 100vw; display: flex; justify-content: flex-end. This means both the collapsed and expanded widgets are always pinned to the right edge. The collapsed card has no margin-right (so it sits flush right with border-radius: 16px 0 0 16px), while the expanded card has margin-right: 32px.

The issue is: when expanding, the expanded card's margin-right: 32px pulls it leftward compared to the collapsed card which sits at the right edge. The user wants the expanded card to appear in the same horizontal position as the collapsed card -- not shifting away.

Let me fix the expanded card to sit flush right like the collapsed card:

Now update the 1200px breakpoint expanded styles too:

Now update the 768px mobile breakpoint to also keep expanded flush-right:

And the 400px breakpoint:

Now let me also remove the root.style.right manipulation in JS since the CSS already handles positioning via the flex-end root, and make sure the expanded panel doesn't get a right offset:

Also clean up the drag-end handler that sets root.style.right:

Good, no more root.style.right in JS. The expanded card will now stay flush to the right edge (matching the collapsed card's position) and remain at the same vertical POS.top instead of jumping to a fixed top offset. The border-radius is updated to 16px 0 0 16px so the right edge sits flush against the viewport, matching the collapsed card's shape. All responsive breakpoints are also aligned with margin-right: 0 to keep the behavior consistent across screen sizes.

Let me carefully trace through the full rendering and positioning code to find what's still causing the jump.

Now I see the full picture. The root element has root.style.right = "16px" set at initialization (line 1294), during drag (line 1313), and on resize (line 1346). Also root.style.top = POS.top + "px" is being set. The #kalshi-ext-root CSS has position: fixed; right: 0; top: 0; from CSS, but the JS overrides with root.style.right = "16px".

Let me check the CSS for #kalshi-ext-root precisely:

Now I fully understand the system. The root #kalshi-ext-root is:

• position: fixed; top: 12px; left: 0; width: 100vw; display: flex; justify-content: flex-end;
• JS sets root.style.top and root.style.right = "16px" at various points

The root is a full-width flex container that spans the viewport. It uses justify-content: flex-end to push children to the right. The top style moves the entire root container vertically.

The problem: When the expanded card opens, root.style.top = POS.top + "px" is being set, but POS.top starts at 12 (default). The root.style.right = "16px" is being set during init (line 1294), and this actually overrides left: 0 in the CSS -- when both left and right are set on a fixed element with explicit width, right wins and shifts the whole container. But the real issue is that right: 16px is set on the root at init before any interaction.

Wait -- the user said the card "pops up to the top right" even after my fix that sets root.style.top = POS.top + "px" in the render function. The issue must be that POS.top is always 12 (the default) because drag hasn't changed it. So when expanding, the card appears at top: 12px, which is the top-right.

The real fix is: when the user clicks a market item, capture the current visual position of the collapsed widget and use that for the expanded card position, rather than relying on POS.top which is the root's top (which is always 12px if never dragged).

Actually, looking again more carefully: the root starts with top: 12px from CSS. The JS sets root.style.top = POS.top + "px" where POS.top defaults to 12. So yes, the expanded card appears at the top of the viewport. The user wants the expanded card to open in-place where the collapsed card was visually rendered.

But wait -- the collapsed card is already AT top: 12px on the root. The root is a flex container at top: 12px. The collapsed card is inside it aligned to flex-end (right side). So the collapsed card appears at top: 12px of the viewport. When expanding, root.style.top = POS.top + "px" = 12px. So it should be in the same place... unless the expanded card is much taller and pushes down?

Hmm, the user says it "pops up to the top right." Maybe the issue is that the expanded card is significantly taller than the collapsed one, and appearing at top: 12px makes it feel like it jumps to the top. The collapsed card is small (maybe ~200px tall), so if the user sees it in the middle-right area of the screen, but the root is actually at top: 12px, the expanded card (which is much taller, maybe 500-600px) fills from the top.

Actually, re-reading: the root top: 12px means the collapsed card's TOP edge is at 12px from the viewport top. The collapsed card is short, so it appears near the top. The expanded card is tall, so it also starts at top 12px but extends further down. They both start from the same top position.

Unless the user wants the expanded card to appear lower on the page, maybe centered vertically or positioned so it doesn't feel like it's taking over the top-right corner. Let me re-read the user's request: "The card still pops up to the bottom right."

Wait, the user said "bottom right" this time, not "top right." Let me re-read: "The card still pops up to the bottom right. Can we have it revised so that it doesn't pop up to the top right?"

I think the user wants the expanded card to open in the same position (overlaying/replacing the collapsed card) rather than appearing at a different corner. The key issue is: the root container is positioned at top: 12px which puts the collapsed card at the top. When expanding, the card just appears in place. But the user perceives it as "popping up" somewhere because the visual transition feels like a jump.

Let me think about this differently. Maybe the real issue is simpler: the root.style.right = "16px" being set in the initial JS code and in the drag/resize handlers is CONFLICTING with the CSS left: 0; width: 100vw;. When right: 16px is set via JS, it overrides positioning and shifts the container. The expanded card has margin-right: 0 now, but maybe the root's right: 16px is moving the expanded card differently than the collapsed one.

Let me remove ALL root.style.right assignments from JS and let the CSS handle everything via left: 0; width: 100vw; justify-content: flex-end. The collapsed card sits flush-right because of border-radius: 16px 0 0 16px and no margin. The expanded card should do the same.

Now let me also make sure the expanded card clamps to viewport so it doesn't overflow off-screen. When the collapsed card is near the bottom and the user expands it, the taller expanded card could overflow. I need to adjust the position when expanding to ensure the card fits:

Now let me also remove the CSS right property from #kalshi-ext-root since the layout uses left: 0; width: 100vw; justify-content: flex-end (which already pins children to the right). Having a right set by JS was overriding the left and causing unpredictable behavior:

Good, all root.style.right assignments are removed. Now the positioning relies purely on the CSS: left: 0; width: 100vw; justify-content: flex-end; which naturally pins children to the right edge. The top is controlled by POS.top via JS.

Now let me also verify the CSS #kalshi-ext-root doesn't have a right property in the stylesheet:

Good -- no right on the root element itself. All margin-right: 0 on the expanded widget are correct, keeping it flush to the right edge via flex-end.

Now let me also add a debug log temporarily to verify POS.top is being maintained correctly:

I've cleaned up all the root.style.right assignments from the JavaScript (init, drag handler, and resize handler) that were conflicting with the CSS layout. The root element now relies solely on its CSS left: 0; width: 100vw; justify-content: flex-end to keep the widget pinned to the right edge, while root.style.top = POS.top + "px" controls the vertical position consistently across collapsed and expanded states. I've added a temporary debug log to verify the position value -- once confirmed working, I'll remove it.