fix: use CSS grid for 50/50 label/value layout in properties panel

Flex layout with gap-2 allowed content to override the 50% width split,
causing short labels like "URL" to be truncated to "U…" when values were
long. Switching to grid-cols-2 enforces exact 50/50 columns.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

src/components/DynamicPropertiesPanel.test.tsx

@@ -664,6 +664,39 @@ describe('DynamicPropertiesPanel', () => {
     })
   })
 
+  describe('property row 50/50 layout', () => {
+    it('uses CSS grid with two equal columns on editable rows', () => {
+      render(
+        <DynamicPropertiesPanel
+          entry={makeEntry()}
+          content=""
+          frontmatter={{ url: 'https://example.com/very/long/path/that/should/be/truncated' }}
+          onUpdateProperty={onUpdateProperty}
+        />
+      )
+      const editableRows = screen.getAllByTestId('editable-property')
+      editableRows.forEach(row => {
+        expect(row.className).toContain('grid')
+        expect(row.className).toContain('grid-cols-2')
+      })
+    })
+
+    it('uses CSS grid with two equal columns on read-only rows', () => {
+      render(
+        <DynamicPropertiesPanel
+          entry={makeEntry()}
+          content=""
+          frontmatter={{}}
+        />
+      )
+      const readOnlyRows = screen.getAllByTestId('readonly-property')
+      readOnlyRows.forEach(row => {
+        expect(row.className).toContain('grid')
+        expect(row.className).toContain('grid-cols-2')
+      })
+    })
+  })
+
   describe('URL property rendering', () => {
     it('renders URL values with link styling instead of plain EditableValue', () => {
       render(

src/components/DynamicPropertiesPanel.tsx

@@ -47,15 +47,15 @@ function PropertyRow({ propKey, value, editingKey, displayMode, autoMode, vaultS
   }
 
   return (
-    <div className="group/prop flex min-w-0 items-center gap-2 rounded px-1.5 outline-none transition-colors hover:bg-muted focus:bg-muted focus:ring-1 focus:ring-primary" tabIndex={0} onKeyDown={handleKeyDown} data-testid="editable-property">
-      <span className="font-mono-overline flex w-1/2 shrink-0 min-w-0 items-center gap-1 text-muted-foreground">
+    <div className="group/prop grid min-w-0 grid-cols-2 items-center gap-2 rounded px-1.5 outline-none transition-colors hover:bg-muted focus:bg-muted focus:ring-1 focus:ring-primary" tabIndex={0} onKeyDown={handleKeyDown} data-testid="editable-property">
+      <span className="font-mono-overline flex min-w-0 items-center gap-1 text-muted-foreground">
         <span className="truncate">{propKey}</span>
         {onDelete && (
           <button className="border-none bg-transparent p-0 text-sm leading-none text-muted-foreground opacity-0 transition-all hover:text-destructive group-hover/prop:opacity-100" onClick={() => onDelete(propKey)} title="Delete property">&times;</button>
         )}
         <DisplayModeSelector propKey={propKey} currentMode={displayMode} autoMode={autoMode} onSelect={onDisplayModeChange} />
       </span>
-      <div className="w-1/2 min-w-0">
+      <div className="min-w-0">
         <SmartPropertyValueCell propKey={propKey} value={value} displayMode={displayMode} isEditing={editingKey === propKey} vaultStatuses={vaultStatuses} vaultTags={vaultTags} onStartEdit={onStartEdit} onSave={onSave} onSaveList={onSaveList} onUpdate={onUpdate} />
       </div>
     </div>
@@ -64,9 +64,9 @@ function PropertyRow({ propKey, value, editingKey, displayMode, autoMode, vaultS
 
 function InfoRow({ label, value }: { label: string; value: string }) {
   return (
-    <div className="flex min-w-0 items-center gap-2 px-1.5" data-testid="readonly-property">
-      <span className="font-mono-overline w-1/2 shrink-0 truncate" style={{ color: 'var(--text-muted)' }}>{label}</span>
-      <span className="w-1/2 min-w-0 truncate text-right text-[12px]" style={{ color: 'var(--text-muted)' }}>{value}</span>
+    <div className="grid min-w-0 grid-cols-2 items-center gap-2 px-1.5" data-testid="readonly-property">
+      <span className="font-mono-overline min-w-0 truncate" style={{ color: 'var(--text-muted)' }}>{label}</span>
+      <span className="min-w-0 truncate text-right text-[12px]" style={{ color: 'var(--text-muted)' }}>{value}</span>
     </div>
   )
 }

src/components/Editor.css

@@ -96,7 +96,7 @@
 .editor__blocknote-container .bn-editor {
   width: 100%;
   padding: 20px 40px;
-  max-width: 760px;
+  max-width: var(--editor-max-width, 760px);
   margin: 0 auto;
 }
 
@@ -282,11 +282,13 @@
   border: none;
   outline: none;
   background: transparent;
-  font-size: var(--editor-title-size, 28px);
-  font-weight: 700;
-  line-height: 1.2;
+  font-size: var(--headings-h1-font-size);
+  font-weight: var(--headings-h1-font-weight);
+  line-height: var(--headings-h1-line-height);
+  letter-spacing: var(--headings-h1-letter-spacing);
   color: var(--foreground);
   padding: 0;
+  margin-left: 8px;
 }
 
 .title-field__input::placeholder {

tests/smoke/title-field-alignment.spec.ts

@@ -54,4 +54,29 @@ test.describe('TitleField alignment and separator', () => {
     // Both should have the same left edge (within 2px tolerance)
     expect(Math.abs(titleBox!.x - editorBox!.x)).toBeLessThanOrEqual(2)
   })
+
+  test('title field uses H1 CSS variables for font styling', async ({ page }) => {
+    // Verify the title-field__input element references the H1 heading CSS vars
+    const usesH1Vars = await page.evaluate(() => {
+      const sheets = Array.from(document.styleSheets)
+      for (const sheet of sheets) {
+        try {
+          for (const rule of Array.from(sheet.cssRules)) {
+            if (rule instanceof CSSStyleRule && rule.selectorText === '.title-field__input') {
+              const fontSize = rule.style.getPropertyValue('font-size')
+              const fontWeight = rule.style.getPropertyValue('font-weight')
+              return {
+                fontSize: fontSize.includes('--headings-h1-font-size'),
+                fontWeight: fontWeight.includes('--headings-h1-font-weight'),
+              }
+            }
+          }
+        } catch { /* cross-origin sheet */ }
+      }
+      return { fontSize: false, fontWeight: false }
+    })
+
+    expect(usesH1Vars.fontSize).toBe(true)
+    expect(usesH1Vars.fontWeight).toBe(true)
+  })
 })