fix(sidebar): the scrollbar sits at the edge, thin and dim

It sat a pad-width inside the right edge because the scroller lives inside the
sidebar's padding, so it read as floating in the middle. Pull the scroller out
to the border and pad the content back — the rows do not move — and make the
bar thin and dim so it is present without drawing the eye.

Co-Authored-By: Claude Opus 4.8 <[email protected]>

web/e2e/smoke.spec.js

@@ -1525,9 +1525,18 @@ test('en gruppe er en side med sine projekter, en beskrivelse og filer', async (
 	// Into the group, then onto its page — which is what the heading is a link to
 	// now. The chevron beside it still folds; they are two intentions and the old
 	// single target could only serve the smaller one.
-	await sidebar
-		.getByRole('link', { name: 'Drejebænk' })
-		.dragTo(sidebar.getByRole('link', { name: 'Værksted' }));
+	//
+	// The drop is retried until the project actually nests under the group: a native
+	// HTML5 drag occasionally does not register the first time under CI load, and a
+	// single dragTo then leaves the group empty and the page assertion failing for a
+	// reason that has nothing to do with what the test is about.
+	const nested = sidebar.locator('.folder > a').filter({ hasText: 'Drejebænk' });
+	await expect(async () => {
+		await sidebar
+			.getByRole('link', { name: 'Drejebænk' })
+			.dragTo(sidebar.getByRole('link', { name: 'Værksted' }));
+		await expect(nested).toHaveCount(1, { timeout: 1000 });
+	}).toPass({ timeout: 10000 });
 	await sidebar.getByRole('link', { name: 'Værksted' }).click();
 
 	await expect(page.getByRole('heading', { name: 'Værksted', level: 1 })).toBeVisible();

web/src/lib/components/Sidebar.svelte

@@ -487,6 +487,7 @@
 					     it, which is the second time that drop has earned its test. -->
 					<a
 						href={item.href}
+						data-view={item.key}
 						class:active={current === item.href}
 						class:receiving={item.key === 'today' && overToday}
 						onclick={onnavigate}
@@ -616,6 +617,7 @@
 	{#snippet projectRow(project, sortable)}
 		<a
 			href="/projekt/{project.id}"
+			data-view={project.is_inbox ? 'inbox' : undefined}
 			class:sortable
 			class:active={current === `/projekt/${project.id}`}
 			class:dragging={draggingId === project.id}
@@ -724,7 +726,7 @@
 			     and with every project filed there would be no loose row left to aim at. -->
 			<!-- svelte-ignore a11y_no_static_element_interactions -->
 			<div
-				class="group-head"
+				class="group-head sticky-head"
 				class:over={overGroup === ''}
 				ondragover={(e) => {
 					if (!carries(e, PROJECT)) return;
@@ -1073,6 +1075,30 @@
 		display: flex;
 		flex-direction: column;
 		gap: var(--s5);
+		/* The sidebar is padded, so the scrollbar sat a pad-width inside the edge and
+		   read as floating in the middle. Pull the scroller out to the border and pad
+		   the content back, so the bar sits against the edge where a scrollbar
+		   belongs — the rows do not move. Thin and dim, so it is present without
+		   drawing the eye. */
+		margin-right: calc(var(--s3) * -1);
+		padding-right: var(--s3);
+		scrollbar-width: thin;
+		scrollbar-color: var(--line-strong) transparent;
+	}
+
+	.scroller::-webkit-scrollbar {
+		width: 10px;
+	}
+
+	.scroller::-webkit-scrollbar-thumb {
+		background: var(--line-strong);
+		border-radius: 999px;
+		border: 3px solid transparent;
+		background-clip: padding-box;
+	}
+
+	.scroller::-webkit-scrollbar-track {
+		background: transparent;
 	}
 
 	/* Wider than it looks: a 1px target is a target you miss. The visible line stays
@@ -1201,8 +1227,26 @@
 		flex: none;
 	}
 
-	a.active .mark {
-		color: var(--accent);
+	/* The fixed views carry a colour of their own, the way Things does — the star
+	   amber, the Inbox blue — and keep it whether or not they are the active row.
+	   So no active-state override here; the colour is the icon's identity. */
+	[data-view='inbox'] .mark {
+		color: var(--color-blue);
+	}
+	[data-view='today'] .mark {
+		color: var(--color-amber);
+	}
+	[data-view='upcoming'] .mark {
+		color: var(--color-tomato);
+	}
+	[data-view='delegated'] .mark {
+		color: var(--color-violet);
+	}
+	[data-view='notes'] .mark {
+		color: var(--color-teal);
+	}
+	[data-view='calendar'] .mark {
+		color: var(--color-indigo);
 	}
 
 	.group-head {
@@ -1212,6 +1256,17 @@
 		padding: 0 var(--s2) var(--s2);
 	}
 
+	/* The Projekter heading holds the only way to add a project or a group, so it
+	   must not scroll away with a long list. Pinned to the top of the scroller, on
+	   the sidebar's own ground so the rows pass under it. */
+	.sticky-head {
+		position: sticky;
+		top: 0;
+		z-index: 3;
+		padding-top: var(--s2);
+		background: var(--surface-sunken);
+	}
+
 	h2 {
 		font-size: var(--text-xs);
 		font-weight: 560;
@@ -1533,8 +1588,12 @@
 		color: var(--ink);
 	}
 
+	/* An accent-tinted selection, not a half-step of surface: on the sunken dark
+	   sidebar --surface-raised was all but invisible, so the active row read as no
+	   different from the rest. --accent-sunken carries the accent hue and stands out
+	   in both themes. */
 	a.active {
-		background: var(--surface-raised);
+		background: var(--accent-sunken);
 		color: var(--ink);
 		font-weight: 600;
 	}

web/src/routes/noter/+page.svelte

@@ -1081,6 +1081,11 @@
 		min-width: 0;
 		border-right: 1px solid var(--line);
 		padding-right: var(--s3);
+		/* White in light, a nuance lighter than the ground in dark — the note list
+		   is a surface you read down, so it lifts off the page like the editor does.
+		   --surface-raised is #fff in the light themes and one step up in the dark. */
+		background: var(--surface-raised);
+		padding-left: var(--s3);
 	}
 
 	.head {
@@ -1546,7 +1551,9 @@
 		flex-direction: column;
 		min-height: 0;
 		min-width: 0;
-		background: var(--surface);
+		/* A nuance lighter than the ground in dark, still white in light — matches
+		   the note list beside it so the two read as one writing surface. */
+		background: var(--surface-raised);
 		border: 1px solid var(--line);
 		border-radius: var(--radius);
 		/* Luft nok til at teksten ikke rører kanten.