diff --git a/packages/server/src/db/migrate.ts b/packages/server/src/db/migrate.ts
index 6bcbccfa..9bb22cd7 100644
--- a/packages/server/src/db/migrate.ts
+++ b/packages/server/src/db/migrate.ts
@@ -85,6 +85,14 @@ export function runMigrations(db: Database.Database): void {
       columns: [
         { name: 'banner', type: 'TEXT' }
       ]
+    },
+    {
+      name: 'users',
+      columns: [
+        { name: 'banner', type: 'TEXT' },
+        { name: 'accent_color', type: 'TEXT' },
+        { name: 'bio', type: 'TEXT' },
+      ]
     }
   ];
 
diff --git a/packages/server/src/db/schema.ts b/packages/server/src/db/schema.ts
index f49b4dc1..f868c731 100644
--- a/packages/server/src/db/schema.ts
+++ b/packages/server/src/db/schema.ts
@@ -12,6 +12,9 @@ export const users = sqliteTable('users', {
   homeInstance: text('home_instance'),
   homeUserId: text('home_user_id'),
   replicatedInstances: text('replicated_instances').default('[]'),
+  banner: text('banner'),
+  accentColor: text('accent_color'),
+  bio: text('bio'),
   createdAt: integer('created_at').notNull(),
 });
 
diff --git a/packages/server/src/routes/users.ts b/packages/server/src/routes/users.ts
index b291d54a..1c27e99a 100644
--- a/packages/server/src/routes/users.ts
+++ b/packages/server/src/routes/users.ts
@@ -1,5 +1,5 @@
 import type { FastifyInstance } from 'fastify';
-import { eq } from 'drizzle-orm';
+import { eq, inArray } from 'drizzle-orm';
 import { getDb, schema } from '../db/index.js';
 import { authenticate, verifyPassword } from '../utils/auth.js';
 import { connectionManager } from '../ws/handler.js';
@@ -38,7 +38,7 @@ export async function userRoutes(app: FastifyInstance): Promise<void> {
   });
 
   app.patch<{ Body: UpdateUserRequest }>('/api/users/@me', { preHandler: authenticate }, async (request, reply) => {
-    const { displayName, avatar, customStatus, status, replicatedInstances, homeUserId } = request.body;
+    const { displayName, avatar, banner, accentColor, bio, customStatus, status, replicatedInstances, homeUserId } = request.body;
     const db = getDb();
 
     const updateData: Record<string, string | null | undefined> = {};
@@ -59,6 +59,38 @@ export async function userRoutes(app: FastifyInstance): Promise<void> {
       updateData.avatar = avatar;
     }
 
+    if (banner !== undefined) {
+      if (banner && typeof banner === 'string' && banner.trim().length > 0) {
+        updateData.banner = banner.trim();
+      } else {
+        updateData.banner = null;
+      }
+    }
+
+    if (accentColor !== undefined) {
+      if (accentColor && typeof accentColor === 'string' && accentColor.trim().length > 0) {
+        const hex = accentColor.trim();
+        if (!/^#[0-9a-fA-F]{6}$/.test(hex)) {
+          return reply.code(400).send({ error: 'Accent color must be a valid hex color (e.g. #ff0000)', statusCode: 400 });
+        }
+        updateData.accentColor = hex;
+      } else {
+        updateData.accentColor = null;
+      }
+    }
+
+    if (bio !== undefined) {
+      if (bio && typeof bio === 'string') {
+        const trimmed = bio.trim();
+        if (trimmed.length > 190) {
+          return reply.code(400).send({ error: 'Bio must be 190 characters or less', statusCode: 400 });
+        }
+        updateData.bio = trimmed || null;
+      } else {
+        updateData.bio = null;
+      }
+    }
+
     if (customStatus !== undefined) {
       if (customStatus !== null && typeof customStatus === 'string') {
         const trimmed = customStatus.trim();
@@ -149,4 +181,37 @@ export async function userRoutes(app: FastifyInstance): Promise<void> {
 
     return reply.code(200).send(sanitizeUser(user));
   });
+
+  app.get<{ Params: { id: string } }>('/api/users/:id/mutuals', { preHandler: authenticate }, async (request, reply) => {
+    const { id: targetId } = request.params;
+    const myId = request.userId;
+    const db = getDb();
+
+    // Mutual friends: users who are friends with both me and the target
+    const myFriendRows = db.select().from(schema.friends).where(eq(schema.friends.userId, myId)).all();
+    const targetFriendRows = db.select().from(schema.friends).where(eq(schema.friends.userId, targetId)).all();
+    const myFriendIds = new Set(myFriendRows.map((f) => f.friendId));
+    const targetFriendIds = new Set(targetFriendRows.map((f) => f.friendId));
+    const mutualFriendIds = [...myFriendIds].filter((id) => targetFriendIds.has(id));
+
+    const mutualFriends = mutualFriendIds.length > 0
+      ? db.select().from(schema.users).where(inArray(schema.users.id, mutualFriendIds)).all().map(sanitizeUser)
+      : [];
+
+    // Mutual spaces: spaces both me and the target are members of
+    const myMemberships = db.select().from(schema.spaceMembers).where(eq(schema.spaceMembers.userId, myId)).all();
+    const targetMemberships = db.select().from(schema.spaceMembers).where(eq(schema.spaceMembers.userId, targetId)).all();
+    const mySpaceIds = new Set(myMemberships.map((m) => m.spaceId));
+    const targetSpaceIds = new Set(targetMemberships.map((m) => m.spaceId));
+    const mutualSpaceIds = [...mySpaceIds].filter((id) => targetSpaceIds.has(id));
+
+    const mutualSpaces = mutualSpaceIds.length > 0
+      ? db.select({ id: schema.spaces.id, name: schema.spaces.name, icon: schema.spaces.icon })
+          .from(schema.spaces)
+          .where(inArray(schema.spaces.id, mutualSpaceIds))
+          .all()
+      : [];
+
+    return reply.code(200).send({ mutualFriends, mutualSpaces });
+  });
 }
diff --git a/packages/server/src/utils/sanitize.ts b/packages/server/src/utils/sanitize.ts
index 07544764..72a8be3b 100644
--- a/packages/server/src/utils/sanitize.ts
+++ b/packages/server/src/utils/sanitize.ts
@@ -16,6 +16,9 @@ export function sanitizeUser(row: typeof schema.users.$inferSelect): User {
     username: row.username,
     displayName: row.displayName,
     avatar: row.avatar,
+    banner: row.banner ?? null,
+    accentColor: row.accentColor ?? null,
+    bio: row.bio ?? null,
     status: (row.status ?? 'offline') as User['status'],
     customStatus: row.customStatus,
     isAdmin: row.isAdmin === 1,
diff --git a/packages/shared/src/types.ts b/packages/shared/src/types.ts
index 4ac0e0c8..e2ade358 100644
--- a/packages/shared/src/types.ts
+++ b/packages/shared/src/types.ts
@@ -5,6 +5,9 @@ export interface User {
   username: string;
   displayName: string | null;
   avatar: string | null;
+  banner: string | null;
+  accentColor: string | null;
+  bio: string | null;
   status: UserStatus;
   customStatus: string | null;
   isAdmin: boolean;
@@ -340,6 +343,9 @@ export interface UpdateSpaceRequest {
 export interface UpdateUserRequest {
   displayName?: string;
   avatar?: string;
+  banner?: string;
+  accentColor?: string;
+  bio?: string;
   customStatus?: string;
   status?: UserStatus;
   replicatedInstances?: ReplicatedInstance[];
@@ -404,6 +410,9 @@ export interface Friend {
   username: string;
   displayName: string | null;
   avatar: string | null;
+  banner: string | null;
+  accentColor: string | null;
+  bio: string | null;
   status: UserStatus;
   customStatus: string | null;
   createdAt: number;
diff --git a/packages/web/src/api/client.ts b/packages/web/src/api/client.ts
index 2d027599..624062a1 100644
--- a/packages/web/src/api/client.ts
+++ b/packages/web/src/api/client.ts
@@ -45,6 +45,7 @@ export class BackspaceApiClient {
     update: (data: UpdateUserRequest) => Promise<User>;
     get: (id: string) => Promise<User>;
     verifyPassword: (password: string) => Promise<VerifyPasswordResponse>;
+    getMutuals: (id: string) => Promise<{ mutualFriends: User[]; mutualSpaces: { id: string; name: string; icon: string | null }[] }>;
   };
 
   readonly spaces: {
@@ -210,6 +211,8 @@ export class BackspaceApiClient {
       get: (id: string) => request<User>('GET', `/users/${id}`),
       verifyPassword: (password: string) =>
         request<VerifyPasswordResponse>('POST', '/users/@me/verify-password', { password }),
+      getMutuals: (id: string) =>
+        request<{ mutualFriends: User[]; mutualSpaces: { id: string; name: string; icon: string | null }[] }>('GET', `/users/${id}/mutuals`),
     };
 
     this.spaces = {
diff --git a/packages/web/src/components/chat/FriendsPage.test.tsx b/packages/web/src/components/chat/FriendsPage.test.tsx
index 2e769982..9dc5dd2d 100644
--- a/packages/web/src/components/chat/FriendsPage.test.tsx
+++ b/packages/web/src/components/chat/FriendsPage.test.tsx
@@ -48,6 +48,9 @@ const makeFriend = (overrides: Partial<TaggedFriend> = {}): TaggedFriend => ({
   username: 'testfriend',
   displayName: 'Test Friend',
   avatar: null,
+  banner: null,
+  accentColor: null,
+  bio: null,
   status: 'online',
   customStatus: null,
   createdAt: Date.now(),
@@ -70,6 +73,9 @@ const makeRequest = (overrides: Partial<TaggedFriendRequest> = {}): TaggedFriend
     username: 'otheruser',
     displayName: 'Other User',
     avatar: null,
+    banner: null,
+    accentColor: null,
+    bio: null,
     status: 'online',
     customStatus: null,
     isAdmin: false,
@@ -227,6 +233,9 @@ describe('FriendsPage', () => {
           username: 'recipient',
           displayName: 'Recipient',
           avatar: null,
+          banner: null,
+          accentColor: null,
+          bio: null,
           status: 'online',
           customStatus: null,
           isAdmin: false,
@@ -275,6 +284,9 @@ describe('FriendsPage', () => {
           username: 'sender',
           displayName: 'Sender',
           avatar: null,
+          banner: null,
+          accentColor: null,
+          bio: null,
           status: 'online',
           customStatus: null,
           isAdmin: false,
@@ -318,6 +330,9 @@ describe('FriendsPage', () => {
           username: 'sender2',
           displayName: 'Sender 2',
           avatar: null,
+          banner: null,
+          accentColor: null,
+          bio: null,
           status: 'online',
           customStatus: null,
           isAdmin: false,
diff --git a/packages/web/src/components/layout/ActivityPanel.tsx b/packages/web/src/components/layout/ActivityPanel.tsx
index ff191f39..ee4445da 100644
--- a/packages/web/src/components/layout/ActivityPanel.tsx
+++ b/packages/web/src/components/layout/ActivityPanel.tsx
@@ -33,6 +33,9 @@ export function ActivityPanel() {
         username: friend.username,
         displayName: friend.displayName,
         avatar: friend.avatar,
+        banner: friend.banner,
+        accentColor: friend.accentColor,
+        bio: friend.bio,
         status: friend.status,
         customStatus: friend.customStatus,
         createdAt: friend.createdAt,
diff --git a/packages/web/src/components/layout/AppLayout.tsx b/packages/web/src/components/layout/AppLayout.tsx
index 2588af55..852d93f9 100644
--- a/packages/web/src/components/layout/AppLayout.tsx
+++ b/packages/web/src/components/layout/AppLayout.tsx
@@ -15,6 +15,7 @@ import { SpaceSettingsModal } from '../modals/SpaceSettings';
 import { ChannelSettingsModal } from '../modals/ChannelSettingsModal';
 import { NewDmModal } from '../modals/NewDmModal';
 import { AddDmMemberModal } from '../modals/AddDmMemberModal';
+import { UserProfileModal } from '../modals/UserProfileModal';
 import { IncomingCallModal } from '../voice/IncomingCallModal';
 import { PictureInPicture } from '../voice/PictureInPicture';
 import { SoundController } from '../voice/SoundController';
@@ -276,6 +277,7 @@ export function AppLayout() {
       <ChannelSettingsModal />
       <NewDmModal />
       <AddDmMemberModal />
+      <UserProfileModal />
       <IncomingCallModal />
       <ImagePreview />
       <PictureInPicture />
diff --git a/packages/web/src/components/modals/UserProfileModal.tsx b/packages/web/src/components/modals/UserProfileModal.tsx
new file mode 100644
index 00000000..81cd68d9
--- /dev/null
+++ b/packages/web/src/components/modals/UserProfileModal.tsx
@@ -0,0 +1,412 @@
+import React, { useEffect, useState, useCallback } from 'react';
+import { useNavigate } from 'react-router-dom';
+import ReactMarkdown from 'react-markdown';
+import type { User } from '@backspace/shared';
+import { Avatar } from '../ui/Avatar';
+import { Username } from '../ui/Username';
+import { api } from '../../api/client';
+import { useUIStore } from '../../stores/uiStore';
+import { useSpaceStore } from '../../stores/spaceStore';
+import { useSocialStore } from '../../stores/socialStore';
+import { getAvatarGradient, adjustColor } from '../../utils/gradients';
+import { parseFederatedUsername } from '../../utils/identity';
+
+type Tab = 'about' | 'friends' | 'spaces';
+
+interface MutualSpace {
+  id: string;
+  name: string;
+  icon: string | null;
+}
+
+export function UserProfileModal() {
+  const activeModal = useUIStore((s) => s.activeModal);
+  const modalData = useUIStore((s) => s.modalData);
+  const closeModal = useUIStore((s) => s.closeModal);
+  const navigate = useNavigate();
+  const addDmChannel = useSpaceStore((s) => s.addDmChannel);
+  const friends = useSocialStore((s) => s.friends);
+  const sendFriendRequest = useSocialStore((s) => s.sendFriendRequest);
+  const removeFriend = useSocialStore((s) => s.removeFriend);
+
+  const [user, setUser] = useState<User | null>(null);
+  const [activeTab, setActiveTab] = useState<Tab>('about');
+  const [mutualFriends, setMutualFriends] = useState<User[]>([]);
+  const [mutualSpaces, setMutualSpaces] = useState<MutualSpace[]>([]);
+  const [loadingMutuals, setLoadingMutuals] = useState(false);
+  const [friendActionLoading, setFriendActionLoading] = useState(false);
+
+  const isOpen = activeModal === 'userProfile';
+  const userId = modalData?.userId as string | undefined;
+
+  // Determine friendship status
+  const isFriend = user ? friends.some((f) => f.id === user.id) : false;
+
+  const loadUser = useCallback(async (id: string) => {
+    try {
+      const u = await api.users.get(id);
+      setUser(u);
+    } catch {
+      // User not found
+    }
+  }, []);
+
+  const loadMutuals = useCallback(async (id: string) => {
+    setLoadingMutuals(true);
+    try {
+      const data = await api.users.getMutuals(id);
+      setMutualFriends(data.mutualFriends);
+      setMutualSpaces(data.mutualSpaces);
+    } catch {
+      setMutualFriends([]);
+      setMutualSpaces([]);
+    } finally {
+      setLoadingMutuals(false);
+    }
+  }, []);
+
+  useEffect(() => {
+    if (isOpen && userId) {
+      setActiveTab('about');
+      loadUser(userId);
+      loadMutuals(userId);
+    }
+  }, [isOpen, userId, loadUser, loadMutuals]);
+
+  // Reset on close
+  useEffect(() => {
+    if (!isOpen) {
+      setUser(null);
+      setMutualFriends([]);
+      setMutualSpaces([]);
+    }
+  }, [isOpen]);
+
+  // Escape to close
+  useEffect(() => {
+    if (!isOpen) return;
+    const handleKey = (e: KeyboardEvent) => {
+      if (e.key === 'Escape') closeModal();
+    };
+    document.addEventListener('keydown', handleKey);
+    return () => document.removeEventListener('keydown', handleKey);
+  }, [isOpen, closeModal]);
+
+  if (!isOpen || !user) return null;
+
+  const { baseName, domain } = parseFederatedUsername(user.username);
+  const displayName = user.displayName ?? baseName;
+
+  // Banner
+  const bannerSrc = user.banner
+    ? (user.banner.startsWith('http') ? user.banner : api.uploads.url(user.banner))
+    : null;
+  const bannerFallback = user.accentColor
+    ? `linear-gradient(135deg, ${user.accentColor}, ${adjustColor(user.accentColor, -40)})`
+    : getAvatarGradient(user.homeUserId ?? user.id, displayName).gradient;
+
+  const handleSendMessage = async () => {
+    try {
+      const existing = useSpaceStore.getState().findExistingDmForUser(user);
+      if (existing) {
+        useUIStore.getState().setShowDms(true);
+        closeModal();
+        navigate(`/channels/@me/${existing.dm.id}`);
+        return;
+      }
+      const channel = await api.dm.create({ userId: user.id });
+      addDmChannel(channel);
+      useUIStore.getState().setShowDms(true);
+      closeModal();
+      navigate(`/channels/@me/${channel.id}`);
+    } catch (err) {
+      console.error('Failed to create DM channel:', err);
+    }
+  };
+
+  const handleFriendAction = async () => {
+    setFriendActionLoading(true);
+    try {
+      if (isFriend) {
+        await removeFriend(user.id);
+      } else {
+        await sendFriendRequest(user.username);
+      }
+    } catch {
+      // Silently fail
+    } finally {
+      setFriendActionLoading(false);
+    }
+  };
+
+  const handleViewFriend = (friendId: string) => {
+    loadUser(friendId);
+    loadMutuals(friendId);
+    setActiveTab('about');
+    // Update modal data so re-opening preserves context
+    useUIStore.getState().openModal('userProfile', { userId: friendId });
+  };
+
+  const handleGoToSpace = (spaceId: string) => {
+    closeModal();
+    navigate(`/channels/${spaceId}`);
+  };
+
+  const tabs: { key: Tab; label: string; count?: number }[] = [
+    { key: 'about', label: 'About' },
+    { key: 'friends', label: 'Mutual Friends', count: mutualFriends.length },
+    { key: 'spaces', label: 'Mutual Spaces', count: mutualSpaces.length },
+  ];
+
+  return (
+    <div className="fixed inset-0 z-[200] flex items-center justify-center animate-fade-in">
+      <div className="absolute inset-0 bg-surface-overlay" onClick={closeModal} />
+      <div className="relative max-w-lg w-full mx-4 max-h-[calc(100vh-2rem)] flex flex-col bg-surface-elevated rounded-lg shadow-xl animate-slide-up overflow-hidden">
+        {/* Banner */}
+        <div
+          className="h-[100px] flex-shrink-0 relative"
+          style={bannerSrc
+            ? { backgroundImage: `url(${bannerSrc})`, backgroundSize: 'cover', backgroundPosition: 'center' }
+            : { background: bannerFallback, opacity: 0.6 }
+          }
+        >
+          {/* Close button */}
+          <button
+            onClick={closeModal}
+            className="absolute top-2 right-2 w-8 h-8 rounded-full bg-black/40 hover:bg-black/60 flex items-center justify-center transition-colors"
+          >
+            <svg width="16" height="16" viewBox="0 0 24 24" fill="white">
+              <path d="M18.4 4L12 10.4L5.6 4L4 5.6L10.4 12L4 18.4L5.6 20L12 13.6L18.4 20L20 18.4L13.6 12L20 5.6L18.4 4Z" />
+            </svg>
+          </button>
+        </div>
+
+        {/* Header (avatar + name) */}
+        <div className="px-5 flex-shrink-0">
+          <div
+            className="mt-[-48px] mb-2 w-fit rounded-full"
+            style={{ border: '4px solid var(--color-surface-elevated, #1e1e2a)' }}
+          >
+            <Avatar
+              src={user.avatar}
+              name={displayName}
+              size={96}
+              status={user.status as 'online' | 'idle' | 'dnd' | 'offline' | null}
+              userId={user.homeUserId ?? user.id}
+            />
+          </div>
+
+          <div className="mb-3">
+            <Username
+              username={displayName}
+              className="text-[20px] font-bold leading-tight"
+              style={user.accentColor ? { color: user.accentColor } : undefined}
+            />
+            <div className="text-[14px] text-txt-tertiary mt-0.5">
+              {domain ? (
+                <Username username={user.username} className="text-[14px] text-txt-tertiary" />
+              ) : (
+                <span>@{baseName}</span>
+              )}
+            </div>
+            {user.customStatus && (
+              <div className="text-[13px] text-txt-secondary italic mt-1">
+                {user.customStatus}
+              </div>
+            )}
+          </div>
+        </div>
+
+        {/* Tab bar */}
+        <div className="px-5 flex-shrink-0 border-b border-white/[0.06]">
+          <div className="flex gap-1">
+            {tabs.map((tab) => (
+              <button
+                key={tab.key}
+                onClick={() => setActiveTab(tab.key)}
+                className={`px-3 py-2 text-[13px] font-medium rounded-t-lg transition-colors relative ${
+                  activeTab === tab.key
+                    ? 'text-txt-primary'
+                    : 'text-txt-tertiary hover:text-txt-secondary'
+                }`}
+              >
+                {tab.label}
+                {tab.count !== undefined && !loadingMutuals && (
+                  <span className="ml-1 text-[11px] text-txt-tertiary">({tab.count})</span>
+                )}
+                {activeTab === tab.key && (
+                  <div className="absolute bottom-0 left-0 right-0 h-[2px] bg-accent-primary rounded-full" />
+                )}
+              </button>
+            ))}
+          </div>
+        </div>
+
+        {/* Tab content */}
+        <div className="flex-1 overflow-y-auto scrollbar-thin p-5 min-h-[200px]">
+          {activeTab === 'about' && (
+            <div className="space-y-4">
+              {/* Bio */}
+              {user.bio && (
+                <div>
+                  <span className="text-[11px] uppercase tracking-wide font-semibold text-txt-tertiary">
+                    About Me
+                  </span>
+                  <div className="text-[13px] text-txt-secondary mt-1 whitespace-pre-wrap break-words leading-relaxed [&_strong]:font-semibold [&_strong]:text-txt-primary [&_em]:italic [&_a]:text-accent-primary [&_a]:underline">
+                    <ReactMarkdown
+                      allowedElements={['p', 'strong', 'em', 'a', 'br']}
+                      unwrapDisallowed
+                    >
+                      {user.bio}
+                    </ReactMarkdown>
+                  </div>
+                </div>
+              )}
+
+              {/* Member Since */}
+              <div>
+                <span className="text-[11px] uppercase tracking-wide font-semibold text-txt-tertiary">
+                  Member Since
+                </span>
+                <div className="text-[13px] text-txt-secondary mt-1">
+                  {new Date(user.createdAt).toLocaleDateString(undefined, {
+                    month: 'long',
+                    day: 'numeric',
+                    year: 'numeric',
+                  })}
+                </div>
+              </div>
+
+              {/* Accent color */}
+              {user.accentColor && (
+                <div>
+                  <span className="text-[11px] uppercase tracking-wide font-semibold text-txt-tertiary">
+                    Accent Color
+                  </span>
+                  <div className="flex items-center gap-2 mt-1">
+                    <div
+                      className="w-5 h-5 rounded-full border border-white/10"
+                      style={{ backgroundColor: user.accentColor }}
+                    />
+                    <span className="text-[12px] text-txt-tertiary font-mono">
+                      {user.accentColor}
+                    </span>
+                  </div>
+                </div>
+              )}
+            </div>
+          )}
+
+          {activeTab === 'friends' && (
+            <div>
+              {loadingMutuals ? (
+                <div className="flex items-center justify-center py-8">
+                  <svg className="animate-spin w-5 h-5 text-txt-tertiary" viewBox="0 0 24 24" fill="none">
+                    <circle className="opacity-25" cx="12" cy="12" r="10" stroke="currentColor" strokeWidth="4" />
+                    <path className="opacity-75" fill="currentColor" d="M4 12a8 8 0 018-8V0C5.373 0 0 5.373 0 12h4z" />
+                  </svg>
+                </div>
+              ) : mutualFriends.length === 0 ? (
+                <div className="text-center py-8 text-txt-tertiary text-[13px]">
+                  No mutual friends
+                </div>
+              ) : (
+                <div className="grid grid-cols-2 gap-2">
+                  {mutualFriends.map((friend) => {
+                    const fname = friend.displayName ?? parseFederatedUsername(friend.username).baseName;
+                    return (
+                      <button
+                        key={friend.id}
+                        onClick={() => handleViewFriend(friend.id)}
+                        className="flex items-center gap-2.5 p-2.5 rounded-lg bg-white/[0.03] hover:bg-white/[0.06] border border-white/[0.04] transition-colors text-left"
+                      >
+                        <Avatar
+                          src={friend.avatar}
+                          name={fname}
+                          size={40}
+                          status={friend.status as 'online' | 'idle' | 'dnd' | 'offline' | null}
+                          userId={friend.homeUserId ?? friend.id}
+                        />
+                        <div className="min-w-0">
+                          <div className="text-[13px] font-medium text-txt-primary truncate">
+                            {fname}
+                          </div>
+                          <div className="text-[11px] text-txt-tertiary capitalize">
+                            {friend.status}
+                          </div>
+                        </div>
+                      </button>
+                    );
+                  })}
+                </div>
+              )}
+            </div>
+          )}
+
+          {activeTab === 'spaces' && (
+            <div>
+              {loadingMutuals ? (
+                <div className="flex items-center justify-center py-8">
+                  <svg className="animate-spin w-5 h-5 text-txt-tertiary" viewBox="0 0 24 24" fill="none">
+                    <circle className="opacity-25" cx="12" cy="12" r="10" stroke="currentColor" strokeWidth="4" />
+                    <path className="opacity-75" fill="currentColor" d="M4 12a8 8 0 018-8V0C5.373 0 0 5.373 0 12h4z" />
+                  </svg>
+                </div>
+              ) : mutualSpaces.length === 0 ? (
+                <div className="text-center py-8 text-txt-tertiary text-[13px]">
+                  No mutual spaces
+                </div>
+              ) : (
+                <div className="space-y-1">
+                  {mutualSpaces.map((space) => (
+                    <button
+                      key={space.id}
+                      onClick={() => handleGoToSpace(space.id)}
+                      className="flex items-center gap-3 w-full p-2.5 rounded-lg hover:bg-white/[0.06] transition-colors text-left"
+                    >
+                      {space.icon ? (
+                        <img
+                          src={space.icon.startsWith('http') ? space.icon : api.uploads.url(space.icon)}
+                          alt={space.name}
+                          className="w-8 h-8 rounded-lg object-cover"
+                        />
+                      ) : (
+                        <div className="w-8 h-8 rounded-lg bg-white/[0.06] flex items-center justify-center text-[13px] font-semibold text-txt-secondary">
+                          {space.name.charAt(0).toUpperCase()}
+                        </div>
+                      )}
+                      <span className="text-[13px] font-medium text-txt-primary truncate">
+                        {space.name}
+                      </span>
+                    </button>
+                  ))}
+                </div>
+              )}
+            </div>
+          )}
+        </div>
+
+        {/* Action buttons */}
+        <div className="flex-shrink-0 px-5 py-3 border-t border-white/[0.06] flex gap-2">
+          <button
+            onClick={handleSendMessage}
+            className="flex-1 py-2 rounded-lg text-[13px] font-medium text-white bg-accent-primary hover:bg-accent-primary/80 transition-colors"
+          >
+            Send Message
+          </button>
+          <button
+            onClick={handleFriendAction}
+            disabled={friendActionLoading}
+            className={`flex-1 py-2 rounded-lg text-[13px] font-medium border transition-colors disabled:opacity-50 ${
+              isFriend
+                ? 'text-txt-danger border-txt-danger/30 hover:bg-txt-danger/10'
+                : 'text-txt-primary border-white/[0.08] bg-white/[0.06] hover:bg-white/[0.10]'
+            }`}
+          >
+            {friendActionLoading ? '...' : isFriend ? 'Remove Friend' : 'Add Friend'}
+          </button>
+        </div>
+      </div>
+    </div>
+  );
+}
diff --git a/packages/web/src/components/modals/settingsPanels/AccountPanel.tsx b/packages/web/src/components/modals/settingsPanels/AccountPanel.tsx
index de9bdc02..92c1f456 100644
--- a/packages/web/src/components/modals/settingsPanels/AccountPanel.tsx
+++ b/packages/web/src/components/modals/settingsPanels/AccountPanel.tsx
@@ -1,8 +1,18 @@
-import { useState, useEffect } from 'react';
+import { useState, useEffect, useRef } from 'react';
 import { useAuthStore } from '../../../stores/authStore';
 import { Avatar } from '../../ui/Avatar';
+import { ImageCropModal } from '../../ui/ImageCropModal';
+import { api } from '../../../api/client';
+import { getAvatarGradient, adjustColor } from '../../../utils/gradients';
 import type { UserStatus } from '@backspace/shared';
 
+const ACCENT_PRESETS = [
+  '#86efac', '#fca5a5', '#c4b5fd', '#7dd3fc',
+  '#fcd34d', '#fda4af', '#fb923c', '#7c6cf6',
+  '#ef4444', '#f97316', '#22d3ee', '#a3e635',
+  '#f472b6', '#818cf8', '#2dd4bf', '#e879f9',
+];
+
 export function AccountPanel() {
   const user = useAuthStore((s) => s.user);
   const updateProfile = useAuthStore((s) => s.updateProfile);
@@ -10,36 +20,163 @@ export function AccountPanel() {
   const [displayName, setDisplayName] = useState(user?.displayName ?? '');
   const [customStatus, setCustomStatus] = useState(user?.customStatus ?? '');
   const [status, setStatus] = useState<UserStatus>(user?.status ?? 'online');
+  const [bio, setBio] = useState(user?.bio ?? '');
+  const [accentColor, setAccentColor] = useState<string | null>(user?.accentColor ?? null);
+  const [customHex, setCustomHex] = useState(user?.accentColor ?? '');
+
+  // Avatar upload state
+  const [avatarPreview, setAvatarPreview] = useState<string | null>(null);
+  const [avatarFilename, setAvatarFilename] = useState<string | null>(null);
+  const [uploadingAvatar, setUploadingAvatar] = useState(false);
+  const [avatarCropSrc, setAvatarCropSrc] = useState<string | null>(null);
+  const avatarInputRef = useRef<HTMLInputElement>(null);
+
+  // Banner upload state
+  const [bannerPreview, setBannerPreview] = useState<string | null>(null);
+  const [bannerFilename, setBannerFilename] = useState<string | null>(null);
+  const [uploadingBanner, setUploadingBanner] = useState(false);
+  const [bannerCropSrc, setBannerCropSrc] = useState<string | null>(null);
+  const bannerInputRef = useRef<HTMLInputElement>(null);
+
   const [error, setError] = useState('');
   const [success, setSuccess] = useState('');
   const [isLoading, setIsLoading] = useState(false);
 
-  // Reset form when user data changes (e.g. after external update)
   useEffect(() => {
     if (user) {
       setDisplayName(user.displayName ?? '');
       setCustomStatus(user.customStatus ?? '');
       setStatus(user.status ?? 'online');
+      setBio(user.bio ?? '');
+      setAccentColor(user.accentColor ?? null);
+      setCustomHex(user.accentColor ?? '');
+      // Reset upload state
+      if (avatarPreview) URL.revokeObjectURL(avatarPreview);
+      if (bannerPreview) URL.revokeObjectURL(bannerPreview);
+      setAvatarPreview(null);
+      setAvatarFilename(null);
+      setBannerPreview(null);
+      setBannerFilename(null);
     }
-  }, [user]);
+  }, [user?.displayName, user?.customStatus, user?.status, user?.bio, user?.accentColor, user?.avatar, user?.banner]);
 
   if (!user) return null;
 
+  const effectiveDisplayName = displayName.trim() || user.username;
+  const effectiveAccent = accentColor;
+
+  // Change detection
   const hasChanges =
     displayName !== (user.displayName ?? '') ||
     customStatus !== (user.customStatus ?? '') ||
-    status !== (user.status ?? 'online');
+    status !== (user.status ?? 'online') ||
+    bio !== (user.bio ?? '') ||
+    accentColor !== (user.accentColor ?? null) ||
+    avatarFilename !== null ||
+    bannerFilename !== null;
+
+  // Compute banner display
+  const currentBannerUrl = user.banner
+    ? (user.banner.startsWith('http') ? user.banner : api.uploads.url(user.banner))
+    : null;
+  const displayBannerSrc = bannerPreview ?? (bannerFilename === '' ? null : currentBannerUrl);
+
+  // Compute avatar display
+  const currentAvatarSrc = user.avatar
+    ? (user.avatar.startsWith('http') ? user.avatar : api.uploads.url(user.avatar))
+    : null;
+  const displayAvatarSrc = avatarPreview ?? (avatarFilename === '' ? null : currentAvatarSrc);
+
+  // Banner fallback: accent gradient or avatar gradient
+  const bannerFallback = effectiveAccent
+    ? `linear-gradient(135deg, ${effectiveAccent}, ${adjustColor(effectiveAccent, -40)})`
+    : getAvatarGradient(user.homeUserId ?? user.id, effectiveDisplayName).gradient;
+
+  // ── File selection handlers ──
+  const handleAvatarSelect = (e: React.ChangeEvent<HTMLInputElement>) => {
+    const file = e.target.files?.[0];
+    if (!file) return;
+    const reader = new FileReader();
+    reader.onload = () => setAvatarCropSrc(reader.result as string);
+    reader.readAsDataURL(file);
+    if (avatarInputRef.current) avatarInputRef.current.value = '';
+  };
+
+  const handleBannerSelect = (e: React.ChangeEvent<HTMLInputElement>) => {
+    const file = e.target.files?.[0];
+    if (!file) return;
+    const reader = new FileReader();
+    reader.onload = () => setBannerCropSrc(reader.result as string);
+    reader.readAsDataURL(file);
+    if (bannerInputRef.current) bannerInputRef.current.value = '';
+  };
+
+  // ── Crop complete handlers ──
+  const handleAvatarCropComplete = async (blob: Blob) => {
+    if (avatarPreview) URL.revokeObjectURL(avatarPreview);
+    const previewUrl = URL.createObjectURL(blob);
+    setAvatarPreview(previewUrl);
+    setAvatarCropSrc(null);
+    const file = new File([blob], 'avatar.png', { type: 'image/png' });
+    setUploadingAvatar(true);
+    try {
+      const attachment = await api.uploads.upload(file);
+      setAvatarFilename(attachment.filename);
+    } catch {
+      setError('Failed to upload avatar');
+      setAvatarPreview(null);
+      URL.revokeObjectURL(previewUrl);
+    } finally {
+      setUploadingAvatar(false);
+    }
+  };
+
+  const handleBannerCropComplete = async (blob: Blob) => {
+    if (bannerPreview) URL.revokeObjectURL(bannerPreview);
+    const previewUrl = URL.createObjectURL(blob);
+    setBannerPreview(previewUrl);
+    setBannerCropSrc(null);
+    const file = new File([blob], 'banner.png', { type: 'image/png' });
+    setUploadingBanner(true);
+    try {
+      const attachment = await api.uploads.upload(file);
+      setBannerFilename(attachment.filename);
+    } catch {
+      setError('Failed to upload banner');
+      setBannerPreview(null);
+      URL.revokeObjectURL(previewUrl);
+    } finally {
+      setUploadingBanner(false);
+    }
+  };
+
+  const handleRemoveAvatar = () => {
+    if (avatarPreview) URL.revokeObjectURL(avatarPreview);
+    setAvatarPreview(null);
+    setAvatarFilename('');
+  };
+
+  const handleRemoveBanner = () => {
+    if (bannerPreview) URL.revokeObjectURL(bannerPreview);
+    setBannerPreview(null);
+    setBannerFilename('');
+  };
 
   const handleSave = async () => {
     setError('');
     setSuccess('');
     setIsLoading(true);
     try {
-      await updateProfile({
-        displayName: displayName.trim(),
-        customStatus: customStatus.trim(),
-        status,
-      });
+      const updates: Record<string, string | undefined> = {};
+      if (displayName !== (user.displayName ?? '')) updates.displayName = displayName.trim();
+      if (customStatus !== (user.customStatus ?? '')) updates.customStatus = customStatus.trim();
+      if (status !== (user.status ?? 'online')) updates.status = status;
+      if (bio !== (user.bio ?? '')) updates.bio = bio.trim();
+      if (accentColor !== (user.accentColor ?? null)) updates.accentColor = accentColor ?? '';
+      if (avatarFilename !== null) updates.avatar = avatarFilename;
+      if (bannerFilename !== null) updates.banner = bannerFilename;
+
+      await updateProfile(updates as Parameters<typeof updateProfile>[0]);
       setSuccess('Profile updated!');
       setTimeout(() => setSuccess(''), 2000);
     } catch (err) {
@@ -53,44 +190,279 @@ export function AccountPanel() {
     setDisplayName(user.displayName ?? '');
     setCustomStatus(user.customStatus ?? '');
     setStatus(user.status ?? 'online');
+    setBio(user.bio ?? '');
+    setAccentColor(user.accentColor ?? null);
+    setCustomHex(user.accentColor ?? '');
+    if (avatarPreview) URL.revokeObjectURL(avatarPreview);
+    if (bannerPreview) URL.revokeObjectURL(bannerPreview);
+    setAvatarPreview(null);
+    setAvatarFilename(null);
+    setBannerPreview(null);
+    setBannerFilename(null);
     setError('');
   };
 
   return (
     <div className="space-y-5">
-      {/* Profile preview */}
-      <div className="flex items-center gap-4 p-4 bg-surface-channel rounded-lg">
-        <Avatar
-          src={user.avatar}
-          name={user.displayName ?? user.username}
-          size={64}
-          status={user.status}
-          userId={user.homeUserId ?? user.id}
-        />
-        <div>
-          <div className="font-bold text-lg">{user.displayName ?? user.username}</div>
-          <div className="text-txt-tertiary text-sm">@{user.username}</div>
-          {user.customStatus && (
-            <div className="text-txt-secondary text-sm mt-1">{user.customStatus}</div>
-          )}
+      {/* ── Profile Customization ── */}
+      <div>
+        <div className="text-[11px] font-semibold text-txt-tertiary uppercase tracking-wider mb-1.5">
+          Profile Customization
+        </div>
+
+        {/* Live Preview Card */}
+        <div className="rounded-lg overflow-hidden border border-white/[0.06] mb-4">
+          {/* Banner area */}
+          <div
+            className="h-[80px] relative"
+            style={displayBannerSrc
+              ? { backgroundImage: `url(${displayBannerSrc})`, backgroundSize: 'cover', backgroundPosition: 'center' }
+              : { background: bannerFallback, opacity: 0.6 }
+            }
+          />
+          {/* Avatar + info */}
+          <div className="px-4 pb-3 bg-surface-channel">
+            <div
+              className="mt-[-28px] mb-2 w-fit rounded-full"
+              style={{ border: '4px solid var(--color-surface-channel, #1e1e2a)' }}
+            >
+              {displayAvatarSrc ? (
+                <img
+                  src={displayAvatarSrc}
+                  alt="Avatar"
+                  className="w-[56px] h-[56px] rounded-full object-cover"
+                />
+              ) : (
+                <Avatar
+                  src={null}
+                  name={effectiveDisplayName}
+                  size={56}
+                  userId={user.homeUserId ?? user.id}
+                />
+              )}
+            </div>
+            <div
+              className="font-semibold text-[15px] leading-tight"
+              style={{ color: effectiveAccent ?? 'var(--color-txt-primary)' }}
+            >
+              {effectiveDisplayName}
+            </div>
+            <div className="text-[12px] text-txt-tertiary">@{user.username}</div>
+            {bio.trim() && (
+              <div className="text-[12px] text-txt-secondary mt-1.5 whitespace-pre-wrap break-words line-clamp-3">
+                {bio.trim()}
+              </div>
+            )}
+          </div>
+        </div>
+
+        {/* Upload controls */}
+        <div className="rounded-lg bg-white/[0.03] border border-white/[0.04] p-3.5 space-y-4">
+          {/* Avatar upload */}
+          <div>
+            <label className="block text-xs text-txt-secondary mb-1.5">Avatar</label>
+            <div className="flex items-center gap-3">
+              <button
+                type="button"
+                onClick={() => avatarInputRef.current?.click()}
+                disabled={uploadingAvatar}
+                className="relative group"
+              >
+                <div className="w-[64px] h-[64px] rounded-full overflow-hidden">
+                  {displayAvatarSrc ? (
+                    <img src={displayAvatarSrc} alt="Avatar" className="w-full h-full object-cover" />
+                  ) : (
+                    <Avatar
+                      src={null}
+                      name={effectiveDisplayName}
+                      size={64}
+                      userId={user.homeUserId ?? user.id}
+                    />
+                  )}
+                </div>
+                <div className="absolute inset-0 rounded-full bg-black/50 flex items-center justify-center opacity-0 group-hover:opacity-100 transition-opacity">
+                  <svg className="w-5 h-5 text-white" fill="none" viewBox="0 0 24 24" stroke="currentColor" strokeWidth={2}>
+                    <path strokeLinecap="round" strokeLinejoin="round" d="M3 9a2 2 0 012-2h.93a2 2 0 001.664-.89l.812-1.22A2 2 0 0110.07 4h3.86a2 2 0 011.664.89l.812 1.22A2 2 0 0018.07 7H19a2 2 0 012 2v9a2 2 0 01-2 2H5a2 2 0 01-2-2V9z" />
+                    <path strokeLinecap="round" strokeLinejoin="round" d="M15 13a3 3 0 11-6 0 3 3 0 016 0z" />
+                  </svg>
+                </div>
+                {uploadingAvatar && (
+                  <div className="absolute inset-0 rounded-full bg-black/60 flex items-center justify-center">
+                    <svg className="animate-spin w-5 h-5 text-white" viewBox="0 0 24 24" fill="none">
+                      <circle className="opacity-25" cx="12" cy="12" r="10" stroke="currentColor" strokeWidth="4" />
+                      <path className="opacity-75" fill="currentColor" d="M4 12a8 8 0 018-8V0C5.373 0 0 5.373 0 12h4z" />
+                    </svg>
+                  </div>
+                )}
+              </button>
+              <div className="flex flex-col gap-1">
+                <button
+                  type="button"
+                  onClick={() => avatarInputRef.current?.click()}
+                  disabled={uploadingAvatar}
+                  className="text-xs text-accent-primary hover:underline text-left"
+                >
+                  Change Avatar
+                </button>
+                {(displayAvatarSrc || user.avatar) && avatarFilename !== '' && (
+                  <button
+                    type="button"
+                    onClick={handleRemoveAvatar}
+                    className="text-xs text-txt-danger hover:underline text-left"
+                  >
+                    Remove
+                  </button>
+                )}
+              </div>
+            </div>
+            <input
+              ref={avatarInputRef}
+              type="file"
+              accept="image/*"
+              onChange={handleAvatarSelect}
+              className="hidden"
+            />
+          </div>
+
+          {/* Banner upload */}
+          <div>
+            <label className="block text-xs text-txt-secondary mb-1.5">Banner</label>
+            <button
+              type="button"
+              onClick={() => bannerInputRef.current?.click()}
+              disabled={uploadingBanner}
+              className="relative group w-full h-[72px] rounded-lg overflow-hidden border border-white/[0.06]"
+            >
+              <div
+                className="w-full h-full"
+                style={displayBannerSrc
+                  ? { backgroundImage: `url(${displayBannerSrc})`, backgroundSize: 'cover', backgroundPosition: 'center' }
+                  : { background: bannerFallback, opacity: 0.5 }
+                }
+              />
+              <div className="absolute inset-0 bg-black/40 flex items-center justify-center opacity-0 group-hover:opacity-100 transition-opacity">
+                <svg className="w-5 h-5 text-white" fill="none" viewBox="0 0 24 24" stroke="currentColor" strokeWidth={2}>
+                  <path strokeLinecap="round" strokeLinejoin="round" d="M3 9a2 2 0 012-2h.93a2 2 0 001.664-.89l.812-1.22A2 2 0 0110.07 4h3.86a2 2 0 011.664.89l.812 1.22A2 2 0 0018.07 7H19a2 2 0 012 2v9a2 2 0 01-2 2H5a2 2 0 01-2-2V9z" />
+                  <path strokeLinecap="round" strokeLinejoin="round" d="M15 13a3 3 0 11-6 0 3 3 0 016 0z" />
+                </svg>
+              </div>
+              {uploadingBanner && (
+                <div className="absolute inset-0 bg-black/60 flex items-center justify-center">
+                  <svg className="animate-spin w-5 h-5 text-white" viewBox="0 0 24 24" fill="none">
+                    <circle className="opacity-25" cx="12" cy="12" r="10" stroke="currentColor" strokeWidth="4" />
+                    <path className="opacity-75" fill="currentColor" d="M4 12a8 8 0 018-8V0C5.373 0 0 5.373 0 12h4z" />
+                  </svg>
+                </div>
+              )}
+            </button>
+            <div className="flex gap-2 mt-1">
+              <button
+                type="button"
+                onClick={() => bannerInputRef.current?.click()}
+                disabled={uploadingBanner}
+                className="text-xs text-accent-primary hover:underline"
+              >
+                Change Banner
+              </button>
+              {(displayBannerSrc || user.banner) && bannerFilename !== '' && (
+                <button
+                  type="button"
+                  onClick={handleRemoveBanner}
+                  className="text-xs text-txt-danger hover:underline"
+                >
+                  Remove
+                </button>
+              )}
+            </div>
+            <input
+              ref={bannerInputRef}
+              type="file"
+              accept="image/*"
+              onChange={handleBannerSelect}
+              className="hidden"
+            />
+          </div>
+
+          {/* Accent Color */}
+          <div>
+            <label className="block text-xs text-txt-secondary mb-1.5">Accent Color</label>
+            <div className="grid grid-cols-8 gap-1.5 mb-2">
+              {ACCENT_PRESETS.map((color) => (
+                <button
+                  key={color}
+                  type="button"
+                  onClick={() => { setAccentColor(color); setCustomHex(color); }}
+                  className="w-7 h-7 rounded-full border-2 transition-all hover:scale-110"
+                  style={{
+                    backgroundColor: color,
+                    borderColor: accentColor === color ? 'white' : 'transparent',
+                    boxShadow: accentColor === color ? `0 0 0 2px ${color}40` : 'none',
+                  }}
+                  title={color}
+                />
+              ))}
+            </div>
+            <div className="flex items-center gap-2">
+              <input
+                type="text"
+                value={customHex}
+                onChange={(e) => {
+                  const val = e.target.value;
+                  setCustomHex(val);
+                  if (/^#[0-9a-fA-F]{6}$/.test(val)) {
+                    setAccentColor(val);
+                  }
+                }}
+                placeholder="#hex"
+                className="w-24 px-2 py-1.5 bg-surface-input rounded text-xs text-txt-primary outline-none focus:ring-2 focus:ring-accent-primary font-mono"
+                maxLength={7}
+              />
+              {accentColor && (
+                <div
+                  className="w-6 h-6 rounded-full border border-white/10 flex-shrink-0"
+                  style={{ backgroundColor: accentColor }}
+                />
+              )}
+              {accentColor && (
+                <button
+                  type="button"
+                  onClick={() => { setAccentColor(null); setCustomHex(''); }}
+                  className="text-xs text-txt-tertiary hover:text-txt-secondary transition-colors"
+                >
+                  Clear
+                </button>
+              )}
+            </div>
+          </div>
+
+          {/* Bio */}
+          <div>
+            <label className="block text-xs text-txt-secondary mb-1.5">About Me</label>
+            <div className="relative">
+              <textarea
+                value={bio}
+                onChange={(e) => {
+                  if (e.target.value.length <= 190) setBio(e.target.value);
+                }}
+                rows={3}
+                placeholder="Tell the world about yourself..."
+                className="w-full px-3 py-2 bg-surface-input rounded text-sm text-txt-primary outline-none focus:ring-2 focus:ring-accent-primary resize-none"
+                maxLength={190}
+              />
+              <span className="absolute bottom-2 right-2 text-[10px] text-txt-tertiary">
+                {bio.length}/190
+              </span>
+            </div>
+          </div>
         </div>
       </div>
 
-      {error && (
-        <div className="p-2 bg-accent-rose/10 border border-accent-rose/30 rounded text-txt-danger text-sm">{error}</div>
-      )}
-      {success && (
-        <div className="p-2 bg-status-online/10 border border-status-online/30 rounded text-status-online text-sm">{success}</div>
-      )}
-
-      {/* Profile section card */}
+      {/* ── Account ── */}
       <div>
-        <div className="text-[11px] font-semibold text-txt-tertiary uppercase tracking-wider mb-1.5">Profile</div>
+        <div className="text-[11px] font-semibold text-txt-tertiary uppercase tracking-wider mb-1.5">Account</div>
         <div className="rounded-lg bg-white/[0.03] border border-white/[0.04] p-3.5 space-y-4">
           <div>
-            <label className="block text-xs text-txt-secondary mb-1.5">
-              Status
-            </label>
+            <label className="block text-xs text-txt-secondary mb-1.5">Status</label>
             <select
               value={status}
               onChange={(e) => setStatus(e.target.value as UserStatus)}
@@ -103,9 +475,7 @@ export function AccountPanel() {
           </div>
 
           <div>
-            <label className="block text-xs text-txt-secondary mb-1.5">
-              Display Name
-            </label>
+            <label className="block text-xs text-txt-secondary mb-1.5">Display Name</label>
             <input
               type="text"
               value={displayName}
@@ -115,9 +485,7 @@ export function AccountPanel() {
           </div>
 
           <div>
-            <label className="block text-xs text-txt-secondary mb-1.5">
-              Custom Status
-            </label>
+            <label className="block text-xs text-txt-secondary mb-1.5">Custom Status</label>
             <input
               type="text"
               value={customStatus}
@@ -129,6 +497,13 @@ export function AccountPanel() {
         </div>
       </div>
 
+      {error && (
+        <div className="p-2 bg-accent-rose/10 border border-accent-rose/30 rounded text-txt-danger text-sm">{error}</div>
+      )}
+      {success && (
+        <div className="p-2 bg-status-online/10 border border-status-online/30 rounded text-status-online text-sm">{success}</div>
+      )}
+
       {hasChanges && (
         <div className="sticky bottom-0 z-10 pointer-events-none">
           <div className="flex justify-center pt-3 pb-1">
@@ -141,7 +516,7 @@ export function AccountPanel() {
               </button>
               <button
                 onClick={handleSave}
-                disabled={isLoading}
+                disabled={isLoading || uploadingAvatar || uploadingBanner}
                 className="px-3 py-1.5 bg-accent-primary hover:bg-accent-primary/80 text-white text-sm font-medium rounded-full transition-colors disabled:opacity-50"
               >
                 {isLoading ? 'Saving...' : 'Save'}
@@ -150,6 +525,26 @@ export function AccountPanel() {
           </div>
         </div>
       )}
+
+      {/* Crop Modals */}
+      <ImageCropModal
+        isOpen={avatarCropSrc !== null}
+        onClose={() => setAvatarCropSrc(null)}
+        imageSrc={avatarCropSrc ?? ''}
+        onCropComplete={handleAvatarCropComplete}
+        title="Crop Avatar"
+        cropShape="round"
+        aspectRatio={1}
+      />
+      <ImageCropModal
+        isOpen={bannerCropSrc !== null}
+        onClose={() => setBannerCropSrc(null)}
+        imageSrc={bannerCropSrc ?? ''}
+        onCropComplete={handleBannerCropComplete}
+        title="Crop Banner"
+        cropShape="rect"
+        aspectRatio={3}
+      />
     </div>
   );
 }
diff --git a/packages/web/src/components/ui/UserProfilePopout.tsx b/packages/web/src/components/ui/UserProfilePopout.tsx
index 2f636795..5b810f2c 100644
--- a/packages/web/src/components/ui/UserProfilePopout.tsx
+++ b/packages/web/src/components/ui/UserProfilePopout.tsx
@@ -1,12 +1,13 @@
-import React from 'react';
+import React, { useEffect, useState } from 'react';
 import { useNavigate } from 'react-router-dom';
+import ReactMarkdown from 'react-markdown';
 import type { User } from '@backspace/shared';
 import { Avatar } from '../ui/Avatar';
 import { Username } from '../ui/Username';
 import { api } from '../../api/client';
 import { useSpaceStore } from '../../stores/spaceStore';
 import { useUIStore } from '../../stores/uiStore';
-import { getAvatarGradient } from '../../utils/gradients';
+import { getAvatarGradient, adjustColor } from '../../utils/gradients';
 import { parseFederatedUsername } from '../../utils/identity';
 
 interface UserProfilePopoutProps {
@@ -18,14 +19,23 @@ interface UserProfilePopoutProps {
 export function UserProfilePopout({ user, onClose, position }: UserProfilePopoutProps) {
   const navigate = useNavigate();
   const addDmChannel = useSpaceStore((s) => s.addDmChannel);
+  const openModal = useUIStore((s) => s.openModal);
   const { baseName, domain } = parseFederatedUsername(user.username);
   const displayName = user.displayName ?? baseName;
 
+  const [mutualCounts, setMutualCounts] = useState<{ friends: number; spaces: number } | null>(null);
+
+  useEffect(() => {
+    api.users.getMutuals(user.id)
+      .then((data) => setMutualCounts({ friends: data.mutualFriends.length, spaces: data.mutualSpaces.length }))
+      .catch(() => {});
+  }, [user.id]);
+
   const top = position
-    ? Math.min(Math.max(8, position.top), window.innerHeight - 360)
+    ? Math.min(Math.max(8, position.top), window.innerHeight - 460)
     : undefined;
   const left = position
-    ? Math.min(Math.max(8, position.left), window.innerWidth - 316)
+    ? Math.min(Math.max(8, position.left), window.innerWidth - 356)
     : undefined;
 
   const handleSendMessage = async () => {
@@ -47,9 +57,22 @@ export function UserProfilePopout({ user, onClose, position }: UserProfilePopout
     }
   };
 
+  const handleViewFullProfile = () => {
+    onClose();
+    openModal('userProfile', { userId: user.id });
+  };
+
+  // Banner display
+  const bannerSrc = user.banner
+    ? (user.banner.startsWith('http') ? user.banner : api.uploads.url(user.banner))
+    : null;
+  const bannerFallback = user.accentColor
+    ? `linear-gradient(135deg, ${user.accentColor}, ${adjustColor(user.accentColor, -40)})`
+    : getAvatarGradient(user.homeUserId ?? user.id, displayName).gradient;
+
   return (
     <div
-      className="fixed z-[200] w-[300px] rounded-[12px] overflow-hidden animate-fade-in select-none border border-white/[0.07]"
+      className="fixed z-[200] w-[340px] rounded-[12px] overflow-hidden animate-fade-in select-none border border-white/[0.07]"
       style={{
         ...(position
           ? { top, left }
@@ -62,34 +85,35 @@ export function UserProfilePopout({ user, onClose, position }: UserProfilePopout
     >
       {/* Banner */}
       <div
-        className="h-[48px] rounded-t-[12px]"
-        style={{
-          background: getAvatarGradient(user.homeUserId ?? user.id, displayName).gradient,
-          opacity: 0.6,
-        }}
+        className="h-[80px] rounded-t-[12px]"
+        style={bannerSrc
+          ? { backgroundImage: `url(${bannerSrc})`, backgroundSize: 'cover', backgroundPosition: 'center' }
+          : { background: bannerFallback, opacity: 0.6 }
+        }
       />
 
       {/* Body */}
       <div className="px-4 pb-4">
-        {/* Avatar — negative margin pulls it into the banner while staying in flow */}
+        {/* Avatar */}
         <div
-          className="mt-[-28px] mb-3 w-fit rounded-full"
+          className="mt-[-40px] mb-3 w-fit rounded-full"
           style={{ border: '4px solid rgba(20,20,26,0.85)' }}
         >
           <Avatar
             src={user.avatar}
             name={displayName}
-            size={56}
+            size={80}
             status={user.status as 'online' | 'idle' | 'dnd' | 'offline' | null}
             userId={user.homeUserId ?? user.id}
           />
         </div>
 
-        {/* Name & info — flows naturally after avatar */}
+        {/* Name & info */}
         <div>
           <Username
             username={user.displayName ?? baseName}
-            className="text-[16px] font-semibold text-txt-primary leading-tight"
+            className="text-[16px] font-semibold leading-tight"
+            style={user.accentColor ? { color: user.accentColor } : undefined}
           />
           <div className="text-[13px] text-txt-tertiary">
             {domain ? (
@@ -105,26 +129,66 @@ export function UserProfilePopout({ user, onClose, position }: UserProfilePopout
           )}
         </div>
 
-        {/* Divider */}
+        {/* Bio */}
+        {user.bio && (
+          <>
+            <div className="border-t border-white/[0.06] my-3" />
+            <div>
+              <span className="text-[11px] uppercase tracking-wide font-semibold text-txt-tertiary">
+                About Me
+              </span>
+              <div className="text-[13px] text-txt-secondary mt-1 whitespace-pre-wrap break-words leading-relaxed [&_strong]:font-semibold [&_strong]:text-txt-primary [&_em]:italic [&_a]:text-accent-primary [&_a]:underline">
+                <ReactMarkdown
+                  allowedElements={['p', 'strong', 'em', 'a', 'br']}
+                  unwrapDisallowed
+                >
+                  {user.bio}
+                </ReactMarkdown>
+              </div>
+            </div>
+          </>
+        )}
+
         <div className="border-t border-white/[0.06] my-3" />
 
-        {/* Member since */}
-        <div>
-          <span className="text-[11px] uppercase tracking-wide font-semibold text-txt-tertiary">
-            Member Since
-          </span>
-          <span className="text-[12px] text-txt-secondary ml-2">
-            {new Date(user.createdAt).toLocaleDateString(undefined, { month: 'short', day: 'numeric', year: 'numeric' })}
-          </span>
+        {/* Member since + Mutuals */}
+        <div className="space-y-1.5">
+          <div>
+            <span className="text-[11px] uppercase tracking-wide font-semibold text-txt-tertiary">
+              Member Since
+            </span>
+            <span className="text-[12px] text-txt-secondary ml-2">
+              {new Date(user.createdAt).toLocaleDateString(undefined, { month: 'short', day: 'numeric', year: 'numeric' })}
+            </span>
+          </div>
+          {mutualCounts && (mutualCounts.friends > 0 || mutualCounts.spaces > 0) && (
+            <div className="text-[12px] text-txt-tertiary">
+              {mutualCounts.friends > 0 && (
+                <span>{mutualCounts.friends} mutual friend{mutualCounts.friends !== 1 ? 's' : ''}</span>
+              )}
+              {mutualCounts.friends > 0 && mutualCounts.spaces > 0 && (
+                <span className="mx-1">&middot;</span>
+              )}
+              {mutualCounts.spaces > 0 && (
+                <span>{mutualCounts.spaces} mutual space{mutualCounts.spaces !== 1 ? 's' : ''}</span>
+              )}
+            </div>
+          )}
         </div>
 
-        {/* Send Message button */}
+        {/* Actions */}
         <button
           onClick={handleSendMessage}
           className="w-full mt-3 py-2 rounded-lg text-[13px] font-medium text-txt-primary bg-white/[0.06] hover:bg-white/[0.10] border border-white/[0.08] transition-colors"
         >
           Send Message
         </button>
+        <button
+          onClick={handleViewFullProfile}
+          className="w-full mt-1.5 py-2 rounded-lg text-[13px] font-medium text-txt-tertiary hover:text-txt-secondary bg-transparent hover:bg-white/[0.04] transition-colors"
+        >
+          View Full Profile
+        </button>
       </div>
     </div>
   );
diff --git a/packages/web/src/stores/authStore.ts b/packages/web/src/stores/authStore.ts
index 3eab5227..540a4e19 100644
--- a/packages/web/src/stores/authStore.ts
+++ b/packages/web/src/stores/authStore.ts
@@ -16,7 +16,7 @@ interface AuthState {
   register: (username: string, password: string, displayName?: string) => Promise<void>;
   logout: () => void;
   loadUser: () => Promise<void>;
-  updateProfile: (data: { displayName?: string; avatar?: string; customStatus?: string; status?: UserStatus }) => Promise<void>;
+  updateProfile: (data: { displayName?: string; avatar?: string; banner?: string; accentColor?: string; bio?: string; customStatus?: string; status?: UserStatus }) => Promise<void>;
   setUser: (user: User) => void;
   clearError: () => void;
 }
diff --git a/packages/web/src/stores/uiStore.ts b/packages/web/src/stores/uiStore.ts
index a49cbf0f..be445302 100644
--- a/packages/web/src/stores/uiStore.ts
+++ b/packages/web/src/stores/uiStore.ts
@@ -13,6 +13,7 @@ type ModalType =
   | 'imagePreview'
   | 'newDm'
   | 'addDmMember'
+  | 'userProfile'
   | null;
 
 interface Toast {
diff --git a/packages/web/src/utils/assetUrls.ts b/packages/web/src/utils/assetUrls.ts
index 322b3fd6..23672266 100644
--- a/packages/web/src/utils/assetUrls.ts
+++ b/packages/web/src/utils/assetUrls.ts
@@ -14,11 +14,14 @@ export function resolveAssetUrl(filename: string | null | undefined, origin: str
  * Rewrite the avatar field on a user-like object for remote origins.
  * Mutates in-place for efficiency (called on arrays of members/messages).
  */
-export function normalizeUserAssets<T extends { avatar?: string | null }>(user: T, origin: string): T {
+export function normalizeUserAssets<T extends { avatar?: string | null; banner?: string | null }>(user: T, origin: string): T {
   if (!origin) return user;
   if (user.avatar) {
     user.avatar = resolveAssetUrl(user.avatar, origin) ?? user.avatar;
   }
+  if (user.banner) {
+    user.banner = resolveAssetUrl(user.banner, origin) ?? user.banner;
+  }
   // Qualify users local to the remote instance with their origin domain.
   // These users have no homeInstance (they're native there), so the client
   // can't distinguish them from its own local users without this step.
diff --git a/packages/web/src/utils/gradients.ts b/packages/web/src/utils/gradients.ts
index 4aa23543..3a69f0ca 100644
--- a/packages/web/src/utils/gradients.ts
+++ b/packages/web/src/utils/gradients.ts
@@ -56,3 +56,11 @@ export function getSpaceGradient(id?: string | null, name?: string): GradientEnt
   const key = id || name || 'unknown';
   return SPACE_GRADIENTS[hashString(key) % SPACE_GRADIENTS.length]!;
 }
+
+/** Shift each RGB component of a hex color by `amount` (positive = lighter, negative = darker). */
+export function adjustColor(hex: string, amount: number): string {
+  const r = Math.max(0, Math.min(255, parseInt(hex.slice(1, 3), 16) + amount));
+  const g = Math.max(0, Math.min(255, parseInt(hex.slice(3, 5), 16) + amount));
+  const b = Math.max(0, Math.min(255, parseInt(hex.slice(5, 7), 16) + amount));
+  return `#${r.toString(16).padStart(2, '0')}${g.toString(16).padStart(2, '0')}${b.toString(16).padStart(2, '0')}`;
+}