Add collapsible ShareNav sidebar

- Add collapse/expand button in header
- When collapsed: hide menu items and logo, show only toggle button
- Stack bottom icons vertically when collapsed
- Adjust grid layout to match collapsed nav width (60px vs 240px)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

src/app/share/[slug]/[[...path]]/ShareNav.tsx

@@ -1,12 +1,29 @@
-import { Column, Icon, Row, Text, ThemeButton } from '@umami/react-zen';
+import { Button, Column, Icon, Row, Text, ThemeButton } from '@umami/react-zen';
 import { SideMenu } from '@/components/common/SideMenu';
 import { useMessages, useNavigation, useShare } from '@/components/hooks';
-import { AlignEndHorizontal, Clock, Eye, Sheet, Tag, User } from '@/components/icons';
+import {
+  AlignEndHorizontal,
+  Clock,
+  Eye,
+  PanelLeftClose,
+  PanelLeftOpen,
+  Sheet,
+  Tag,
+  User,
+} from '@/components/icons';
 import { LanguageButton } from '@/components/input/LanguageButton';
 import { PreferencesButton } from '@/components/input/PreferencesButton';
 import { Funnel, Lightning, Logo, Magnet, Money, Network, Path, Target } from '@/components/svg';
 
-export function ShareNav({ onItemClick }: { onItemClick?: () => void }) {
+export function ShareNav({
+  collapsed,
+  onCollapse,
+  onItemClick,
+}: {
+  collapsed?: boolean;
+  onCollapse?: (collapsed: boolean) => void;
+  onItemClick?: () => void;
+}) {
   const share = useShare();
   const { formatMessage, labels } = useMessages();
   const { pathname } = useNavigation();
@@ -130,9 +147,24 @@ export function ShareNav({ onItemClick }: { onItemClick?: () => void }) {
     .find(({ path }) => path && pathname.endsWith(path.split('?')[0]))?.id;
 
   return (
-    <Column position="fixed" padding="3" width="240px" maxHeight="100vh" height="100vh">
-      <Row as="header" gap alignItems="center" paddingY="3" marginLeft="3">
-        <a href={logoUrl} target="_blank" rel="noopener">
+    <Column
+      position="fixed"
+      padding="3"
+      width={collapsed ? '60px' : '240px'}
+      maxHeight="100vh"
+      height="100vh"
+      border="right"
+      borderColor="4"
+    >
+      <Row
+        as="header"
+        gap
+        alignItems="center"
+        paddingY="3"
+        justifyContent={collapsed ? 'center' : undefined}
+      >
+        {!collapsed && (
+          <a href={logoUrl} target="_blank" rel="noopener" style={{ marginLeft: 12 }}>
             <Row alignItems="center" gap>
               {logoImage ? (
                 <img src={logoImage} alt={logoName} style={{ height: 24 }} />
@@ -144,7 +176,12 @@ export function ShareNav({ onItemClick }: { onItemClick?: () => void }) {
               <Text weight="bold">{logoName}</Text>
             </Row>
           </a>
+        )}
+        <Button variant="quiet" onPress={() => onCollapse?.(!collapsed)}>
+          <Icon>{collapsed ? <PanelLeftOpen /> : <PanelLeftClose />}</Icon>
+        </Button>
       </Row>
+      {!collapsed && (
         <Column>
           <SideMenu
             items={items}
@@ -153,12 +190,13 @@ export function ShareNav({ onItemClick }: { onItemClick?: () => void }) {
             onItemClick={onItemClick}
           />
         </Column>
+      )}
       <Column flexGrow={1} justifyContent="flex-end">
-        <Row>
+        <Column gap="2">
           <ThemeButton />
           <LanguageButton />
           <PreferencesButton />
-        </Row>
+        </Column>
       </Column>
     </Column>
   );

src/app/share/[slug]/[[...path]]/SharePage.tsx

@@ -1,7 +1,7 @@
 'use client';
 import { Column, Grid, Row, useTheme } from '@umami/react-zen';
 import { usePathname } from 'next/navigation';
-import { useEffect } from 'react';
+import { useEffect, useState } from 'react';
 import { AttributionPage } from '@/app/(main)/websites/[websiteId]/(reports)/attribution/AttributionPage';
 import { BreakdownPage } from '@/app/(main)/websites/[websiteId]/(reports)/breakdown/BreakdownPage';
 import { FunnelsPage } from '@/app/(main)/websites/[websiteId]/(reports)/funnels/FunnelsPage';
@@ -52,6 +52,7 @@ function getSharePath(pathname: string) {
 }
 
 export function SharePage() {
+  const [navCollapsed, setNavCollapsed] = useState(false);
   const share = useShare();
   const { setTheme } = useTheme();
   const pathname = usePathname();
@@ -78,7 +79,7 @@ export function SharePage() {
   const PageComponent = PAGE_COMPONENTS[pageKey] || WebsitePage;
 
   return (
-    <Grid columns={{ xs: '1fr', lg: '240px 1fr' }} width="100%">
+    <Grid columns={{ xs: '1fr', lg: `${navCollapsed ? '60px' : '240px'} 1fr` }} width="100%">
       <Row display={{ xs: 'flex', lg: 'none' }} alignItems="center" gap padding="3">
         <MobileMenuButton>
           {({ close }) => {
@@ -87,7 +88,7 @@ export function SharePage() {
         </MobileMenuButton>
       </Row>
       <Column display={{ xs: 'none', lg: 'flex' }} marginRight="2">
-        <ShareNav />
+        <ShareNav collapsed={navCollapsed} onCollapse={setNavCollapsed} />
       </Column>
       <PageBody gap>
         <WebsiteProvider websiteId={websiteId}>