diff --git a/package.json b/package.json
index b42dad1..b4d5166 100644
--- a/package.json
+++ b/package.json
@@ -18,7 +18,7 @@
     "README.md"
   ],
   "peerDependencies": {
-    "@govoplan/core-webui": "^0.1.8",
+    "@govoplan/core-webui": "^0.1.9",
     "lucide-react": "^1.23.0",
     "react": "^19.0.0",
     "react-dom": "^19.0.0",
diff --git a/webui/package.json b/webui/package.json
index 6652fac..db330c2 100644
--- a/webui/package.json
+++ b/webui/package.json
@@ -13,8 +13,11 @@
     },
     "./styles/addresses.css": "./src/styles/addresses.css"
   },
+  "scripts": {
+    "test:ui-structure": "node scripts/test-selection-list-structure.mjs"
+  },
   "peerDependencies": {
-    "@govoplan/core-webui": "^0.1.8",
+    "@govoplan/core-webui": "^0.1.9",
     "lucide-react": "^1.23.0",
     "react": "^19.0.0",
     "react-dom": "^19.0.0",
diff --git a/webui/scripts/test-selection-list-structure.mjs b/webui/scripts/test-selection-list-structure.mjs
new file mode 100644
index 0000000..f63b3f1
--- /dev/null
+++ b/webui/scripts/test-selection-list-structure.mjs
@@ -0,0 +1,21 @@
+import assert from "node:assert/strict";
+import { readFileSync } from "node:fs";
+import { fileURLToPath } from "node:url";
+
+const pagePath = fileURLToPath(new URL("../src/features/addressbook/AddressBookPage.tsx", import.meta.url));
+const stylesPath = fileURLToPath(new URL("../src/styles/addresses.css", import.meta.url));
+const page = readFileSync(pagePath, "utf8");
+const styles = readFileSync(stylesPath, "utf8");
+
+assert.match(page, /SegmentedControl,[\s\S]*SelectionList,[\s\S]*SelectionListItem,[\s\S]*from "@govoplan\/core-webui"/);
+assert.match(page, /<SelectionList label="Contacts" className="address-contact-selection-list">/);
+assert.match(page, /<SelectionListItem[\s\S]*selected=\{selected\}[\s\S]*className=\{`address-contact-row/);
+assert.match(page, /draggable=\{!contact\.deleted_at && !saving\}/);
+assert.match(page, /<SelectionList label="Discovered CardDAV address books" className="address-sync-result-list">/);
+assert.match(page, /selected=\{cardDavForm\.collection_url === item\.collection_url\}/);
+assert.match(page, /<SegmentedControl<ConflictMergeChoice>[\s\S]*role="group"[\s\S]*value=\{conflictMergeChoices\[row\.field\] \?\? "local"\}/);
+assert.doesNotMatch(page, /<button[\s\S]{0,160}(?:address-contact-row|address-sync-result-row)/);
+assert.doesNotMatch(styles, /\.address-conflict-choice button/);
+assert.doesNotMatch(styles, /\.address-contact-row:(?:hover|focus-visible)/);
+
+console.log("Address-book flat selections use central components.");
diff --git a/webui/src/features/addressbook/AddressBookPage.tsx b/webui/src/features/addressbook/AddressBookPage.tsx
index b525a7b..05ddc4b 100644
--- a/webui/src/features/addressbook/AddressBookPage.tsx
+++ b/webui/src/features/addressbook/AddressBookPage.tsx
@@ -11,6 +11,9 @@ import {
   FormField,
   LoadingFrame,
   PasswordField,
+  SegmentedControl,
+  SelectionList,
+  SelectionListItem,
   StatusBadge,
   ToggleSwitch,
   hasScope,
@@ -1791,10 +1794,10 @@ export default function AddressBookPage({ settings, auth, onAuthChange }: Props)
   function renderContactRow(contact: Contact) {
     const selected = selectedContactId === contact.id;
     return (
-      <button
-        type="button"
+      <SelectionListItem
         key={contact.id}
-        className={`address-contact-row ${selected ? "is-selected" : ""} ${contact.deleted_at ? "is-archived-row" : ""}`}
+        selected={selected}
+        className={`address-contact-row ${contact.deleted_at ? "is-archived-row" : ""}`}
         draggable={!contact.deleted_at && !saving}
         onClick={() => setSelectedContactId(contact.id)}
         onDragStart={(event) => handleContactDragStart(event, contact)}>
@@ -1805,7 +1808,7 @@ export default function AddressBookPage({ settings, auth, onAuthChange }: Props)
         <span className="address-contact-row-meta">
           {contact.deleted_at ? <StatusBadge status="archived" /> : contact.tags.slice(0, 2).map((tag) => <span key={tag} className="address-tag">{tag}</span>)}
         </span>
-      </button>
+      </SelectionListItem>
     );
   }
 
@@ -1981,10 +1984,12 @@ export default function AddressBookPage({ settings, auth, onAuthChange }: Props)
               {selectedBook?.read_only && <StatusBadge status="read-only" />}
               {selectedBook?.deleted_at && <StatusBadge status="archived" />}
             </div>
-            <div className="address-contact-list" role="list">
+            <div className="address-contact-list">
               {visibleContacts.length === 0 ?
                 <div className="address-empty-note">{selectedBook ? "No contacts found." : "Select an address book."}</div> :
-                visibleContacts.map(renderContactRow)
+                <SelectionList label="Contacts" className="address-contact-selection-list">
+                  {visibleContacts.map(renderContactRow)}
+                </SelectionList>
               }
             </div>
           </section>
@@ -2267,14 +2272,18 @@ export default function AddressBookPage({ settings, auth, onAuthChange }: Props)
             </FormField>
           }
           {cardDavDiscovery.length > 0 &&
-            <div className="address-sync-result-list">
+            <SelectionList label="Discovered CardDAV address books" className="address-sync-result-list">
               {cardDavDiscovery.map((item) => (
-                <button type="button" className="address-sync-result-row" key={item.collection_url} onClick={() => useDiscoveredCardDavBook(item)}>
+                <SelectionListItem
+                  selected={cardDavForm.collection_url === item.collection_url}
+                  className="address-sync-result-row"
+                  key={item.collection_url}
+                  onClick={() => useDiscoveredCardDavBook(item)}>
                   <strong>{item.display_name || item.collection_url}</strong>
                   <small>{item.collection_url}</small>
-                </button>
+                </SelectionListItem>
               ))}
-            </div>
+            </SelectionList>
           }
         </form>
       </Dialog>
@@ -2450,15 +2459,20 @@ export default function AddressBookPage({ settings, auth, onAuthChange }: Props)
                   <strong>{row.field}</strong>
                   <span>{row.local}</span>
                   <span>{row.remote}</span>
-                  <span className="address-conflict-choice">
+                  <div>
                     {canMergeConflict(conflictDialog) ?
-                      <>
-                        <button type="button" className={conflictMergeChoices[row.field] !== "remote" ? "is-selected" : ""} onClick={() => setConflictMergeChoice(row.field, "local")}>Local</button>
-                        <button type="button" className={conflictMergeChoices[row.field] === "remote" ? "is-selected" : ""} onClick={() => setConflictMergeChoice(row.field, "remote")}>Remote</button>
-                      </> :
+                      <SegmentedControl<ConflictMergeChoice>
+                        className="address-conflict-choice"
+                        role="group"
+                        size="equal"
+                        ariaLabel={`Source for ${row.field}`}
+                        options={[{ id: "local", label: "Local" }, { id: "remote", label: "Remote" }]}
+                        value={conflictMergeChoices[row.field] ?? "local"}
+                        onChange={(choice) => setConflictMergeChoice(row.field, choice)}
+                      /> :
                       "—"
                     }
-                  </span>
+                  </div>
                 </div>
               ))}
             </div>
diff --git a/webui/src/styles/addresses.css b/webui/src/styles/addresses.css
index 2f7252f..4755925 100644
--- a/webui/src/styles/addresses.css
+++ b/webui/src/styles/addresses.css
@@ -150,16 +150,19 @@
   width: min(960px, calc(100vw - 36px));
 }
 
+.address-sync-record-list,
+.address-sync-plan-grid {
+  display: grid;
+}
+
 .address-sync-result-list,
 .address-sync-record-list,
 .address-sync-plan-grid {
   border: var(--border-line);
-  display: grid;
   max-height: 260px;
   overflow: auto;
 }
 
-.address-sync-result-row,
 .address-sync-record-row,
 .address-sync-plan-row {
   align-items: center;
@@ -175,13 +178,11 @@
 }
 
 .address-sync-result-row {
-  cursor: pointer;
-}
-
-.address-sync-result-row:hover,
-.address-sync-result-row:focus-visible {
-  background: var(--line);
-  outline: none;
+  align-items: center;
+  border-bottom: var(--border-line);
+  display: grid;
+  gap: 10px;
+  grid-template-columns: minmax(0, 1fr) auto;
 }
 
 .address-sync-result-row strong,
@@ -255,37 +256,6 @@
   overflow-wrap: anywhere;
 }
 
-.address-conflict-choice {
-  align-items: center;
-  display: inline-flex;
-  gap: 0;
-  white-space: nowrap;
-}
-
-.address-conflict-choice button {
-  background: var(--panel);
-  border: var(--border-line);
-  color: var(--text);
-  cursor: pointer;
-  font: inherit;
-  min-height: 28px;
-  padding: 3px 8px;
-}
-
-.address-conflict-choice button:first-child {
-  border-radius: var(--radius-sm) 0 0 var(--radius-sm);
-}
-
-.address-conflict-choice button:last-child {
-  border-left: 0;
-  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
-}
-
-.address-conflict-choice button.is-selected {
-  background: var(--line);
-  box-shadow: inset 0 1px 2px rgba(var(--shadow-color-rgb), .12);
-}
-
 .address-list-panel,
 .address-detail-panel {
   display: flex;
@@ -338,34 +308,15 @@
   align-content: start;
 }
 
+.address-contact-selection-list {
+  gap: 2px;
+}
+
 .address-contact-row {
   align-items: center;
-  background: transparent;
-  border: 0;
-  border-radius: 6px;
-  color: var(--text);
-  cursor: pointer;
   display: grid;
   gap: 10px;
   grid-template-columns: minmax(0, 1fr) auto;
-  min-width: 0;
-  padding: 10px;
-  text-align: left;
-}
-
-.address-contact-row[draggable="true"] {
-  cursor: grab;
-}
-
-.address-contact-row[draggable="true"]:active {
-  cursor: grabbing;
-}
-
-.address-contact-row:hover,
-.address-contact-row:focus-visible,
-.address-contact-row.is-selected {
-  background: var(--line);
-  outline: none;
 }
 
 .address-contact-row-main {