diff --git a/panel/src/components/Layout.tsx b/panel/src/components/Layout.tsx
index 73c8504..7db54aa 100644
--- a/panel/src/components/Layout.tsx
+++ b/panel/src/components/Layout.tsx
@@ -221,7 +221,7 @@ export default function Layout({
     }
 
     return (
-        <div className="min-h-screen flex">
+        <div className="min-h-screen flex overflow-x-hidden">
             {/* Mobile header bar */}
             <div className="fixed top-0 left-0 right-0 z-40 flex items-center h-14 px-4 bg-background md:hidden">
                 <button
@@ -286,11 +286,11 @@ export default function Layout({
             </aside>
 
             <main className={cn(
-                "flex-1 transition-all duration-200",
+                "min-w-0 flex-1 overflow-x-hidden transition-all duration-200",
                 "mt-14 md:mt-0",
                 collapsed ? "md:ml-16" : "md:ml-60"
             )}>
-                <div className="max-w-[1600px] mx-auto px-4 py-6 md:px-6 md:py-8">
+                <div className="min-w-0 max-w-[1600px] mx-auto px-4 py-6 md:px-6 md:py-8">
                     {children}
                 </div>
             </main>
diff --git a/panel/src/games/GameRoom.tsx b/panel/src/games/GameRoom.tsx
index c14c05b..cfaf5db 100644
--- a/panel/src/games/GameRoom.tsx
+++ b/panel/src/games/GameRoom.tsx
@@ -126,7 +126,7 @@ function CompactRoomBar({
     return (
         <div className="sticky top-[4.5rem] z-30 md:top-6">
             <div className="rounded-[24px] border border-white/10 bg-background/82 p-3 shadow-[0_18px_50px_rgba(0,0,0,0.28)] backdrop-blur-xl">
-                <div className="flex flex-wrap items-center justify-between gap-3">
+                <div className="flex flex-col gap-3 sm:flex-row sm:flex-wrap sm:items-center sm:justify-between">
                     <div className="flex min-w-0 flex-wrap items-center gap-2">
                         <span className={cn("rounded-full border px-3 py-1 text-[11px] font-semibold uppercase tracking-[0.18em]", stateChip(state))}>
                             {stateLabel(state)}
@@ -142,7 +142,7 @@ function CompactRoomBar({
                     </div>
                     <button
                         onClick={onExit}
-                        className="rounded-full border border-white/10 bg-black/10 px-3 py-1.5 text-sm text-text-secondary transition-colors hover:text-foreground"
+                        className="rounded-full border border-white/10 bg-black/10 px-3 py-1.5 text-sm text-text-secondary transition-colors hover:text-foreground sm:self-auto self-start"
                     >
                         Leave
                     </button>
@@ -260,7 +260,7 @@ export function GameRoom({ userId, role }: { userId: string; role?: string }) {
     return (
         <div className="space-y-6">
             <section className={cn("overflow-hidden rounded-[32px] border p-5 shadow-[0_24px_80px_rgba(0,0,0,0.22)] sm:p-6", gameSurfaceClass(plugin.slug))}>
-                <div className="flex flex-wrap items-center justify-between gap-3">
+                <div className="flex flex-col gap-3 sm:flex-row sm:flex-wrap sm:items-center sm:justify-between">
                     <button
                         onClick={exitRoom}
                         className="inline-flex items-center gap-2 rounded-full border border-white/10 bg-black/10 px-3 py-1.5 text-sm text-text-secondary transition-colors hover:text-foreground"
@@ -294,7 +294,7 @@ export function GameRoom({ userId, role }: { userId: string; role?: string }) {
                                 </div>
                                 <p className="mt-2 max-w-2xl text-sm text-text-secondary">{plugin.description}</p>
                                 <div className="mt-4 flex flex-wrap gap-2">
-                                    <span className="rounded-full border border-white/10 bg-black/10 px-3 py-1.5 text-xs text-text-secondary">
+                                    <span className="break-all rounded-full border border-white/10 bg-black/10 px-3 py-1.5 text-xs text-text-secondary">
                                         Room ID {roomCode}
                                     </span>
                                     {roomFacts.map(fact => (
@@ -306,7 +306,7 @@ export function GameRoom({ userId, role }: { userId: string; role?: string }) {
                             </div>
                         </div>
 
-                        <div className="mt-5 grid gap-3 sm:grid-cols-3">
+                        <div className="mt-5 grid gap-3 md:grid-cols-3">
                             <div className="rounded-2xl border border-white/10 bg-black/12 px-4 py-3">
                                 <div className="flex items-center gap-2 text-[11px] uppercase tracking-[0.18em] text-text-disabled">
                                     <Users className="h-3.5 w-3.5" />
@@ -339,7 +339,7 @@ export function GameRoom({ userId, role }: { userId: string; role?: string }) {
                         {hostPlayer && (
                             <div className="mt-4 flex items-center justify-between gap-3 rounded-2xl border border-white/10 bg-black/10 px-4 py-3 text-sm">
                                 <span className="text-text-tertiary">Host</span>
-                                <span className="font-semibold text-foreground">{hostPlayer.username}</span>
+                                <span className="min-w-0 truncate text-right font-semibold text-foreground">{hostPlayer.username}</span>
                             </div>
                         )}
                     </div>
@@ -347,13 +347,13 @@ export function GameRoom({ userId, role }: { userId: string; role?: string }) {
 
                 <div className="mt-5 space-y-3">
                     {sessionReplaced && (
-                        <div className="flex flex-wrap items-center justify-between gap-3 rounded-2xl border border-warning/20 bg-warning/10 px-4 py-3">
+                        <div className="flex flex-col gap-3 rounded-2xl border border-warning/20 bg-warning/10 px-4 py-3 sm:flex-row sm:flex-wrap sm:items-center sm:justify-between">
                             <div className="text-sm text-warning">
                                 Another tab claimed this room session. Actions from this tab are currently disabled.
                             </div>
                             <button
                                 onClick={rejoin}
-                                className="rounded-full border border-warning/20 px-3 py-1.5 text-xs font-semibold uppercase tracking-[0.18em] text-warning transition-colors hover:bg-warning/10"
+                                className="self-start rounded-full border border-warning/20 px-3 py-1.5 text-xs font-semibold uppercase tracking-[0.18em] text-warning transition-colors hover:bg-warning/10"
                             >
                                 Rejoin Here
                             </button>
@@ -389,7 +389,7 @@ export function GameRoom({ userId, role }: { userId: string; role?: string }) {
             {roomStatus === "waiting" && (
                 <div className="grid gap-6 xl:grid-cols-[minmax(0,1fr)_320px]">
                     <section className="rounded-[32px] border border-white/10 bg-card/70 p-5 shadow-[0_20px_60px_rgba(0,0,0,0.16)] sm:p-6">
-                        <div className="flex flex-wrap items-start justify-between gap-4">
+                        <div className="flex flex-col gap-4 sm:flex-row sm:flex-wrap sm:items-start sm:justify-between">
                             <div>
                                 <div className="text-[11px] uppercase tracking-[0.2em] text-text-disabled">Waiting Room</div>
                                 <h2 className="mt-3 font-display text-3xl font-semibold text-foreground">
@@ -461,9 +461,9 @@ export function GameRoom({ userId, role }: { userId: string; role?: string }) {
                             <div className="text-[11px] uppercase tracking-[0.2em] text-text-disabled">Room Settings</div>
                             <div className="mt-4 space-y-3">
                                 {roomFacts.map(fact => (
-                                    <div key={fact.label} className="flex items-center justify-between gap-3 rounded-2xl border border-white/10 bg-black/10 px-4 py-3 text-sm">
+                                    <div key={fact.label} className="flex flex-col gap-1 rounded-2xl border border-white/10 bg-black/10 px-4 py-3 text-sm sm:flex-row sm:items-center sm:justify-between sm:gap-3">
                                         <span className="text-text-tertiary">{fact.label}</span>
-                                        <span className="font-semibold text-foreground">{fact.value}</span>
+                                        <span className="min-w-0 font-semibold text-foreground sm:text-right">{fact.value}</span>
                                     </div>
                                 ))}
                             </div>
@@ -505,7 +505,7 @@ export function GameRoom({ userId, role }: { userId: string; role?: string }) {
                                 <div className="mt-4 space-y-3">
                                     {spectators.map(spectator => (
                                         <div key={spectator.discordId} className="flex items-center justify-between gap-3 rounded-2xl border border-white/10 bg-black/10 px-4 py-3 text-sm">
-                                            <span className="font-medium text-foreground">{spectator.username}</span>
+                                            <span className="min-w-0 truncate font-medium text-foreground">{spectator.username}</span>
                                             <span className="text-text-tertiary">Watching</span>
                                         </div>
                                     ))}