diff --git a/app/components/GameScreen.tsx b/app/components/GameScreen.tsx
index a235729..0438dc7 100644
--- a/app/components/GameScreen.tsx
+++ b/app/components/GameScreen.tsx
@@ -36,49 +36,48 @@ export function GameScreen({
     breadcrumbEndRef.current?.scrollIntoView({ behavior: "smooth", block: "nearest", inline: "end" });
   }, [history]);
 
+  const btnPrimary = "w-full min-h-11 px-5 rounded-xl text-sm font-semibold bg-[#7c3aed] text-white hover:bg-[#6d28d9] cursor-pointer transition-colors";
+  const btnGhost = "w-full min-h-11 px-5 rounded-xl text-sm font-semibold bg-[#242424] border border-[#2e2e2e] text-[#f0f0f0] hover:bg-[#1a1a1a] cursor-pointer transition-colors";
+
   // Results
   if (room.phase === "results") return (
-    <div className="min-h-dvh w-full bg-[#0f0f0f] text-[#f0f0f0] animate-fade-in flex items-center justify-center px-4 py-6">
-      <div className="w-full max-w-105 flex flex-col gap-6">
-        <div className="text-center bg-[#1a1a1a] border border-[#2e2e2e] rounded-xl p-6">
+    <div className="min-h-dvh w-full bg-[#0f0f0f] text-[#f0f0f0] animate-fade-in flex items-center justify-center px-4 py-8">
+      <div className="w-full max-w-sm sm:max-w-md flex flex-col gap-5 sm:gap-6">
+        <div className="text-center bg-[#1a1a1a] border border-[#2e2e2e] rounded-xl p-5 sm:p-6">
           {winner ? (
             <>
-              <div className="text-5xl mb-2">🏆</div>
-              <div className="text-lg font-bold">{winner.name} a gagné la manche !</div>
+              <div className="text-4xl sm:text-5xl mb-2">🏆</div>
+              <div className="text-base sm:text-lg font-bold">{winner.name} a gagné la manche !</div>
             </>
           ) : (
-            <div className="text-lg font-bold">Manche terminée !</div>
+            <div className="text-base sm:text-lg font-bold">Manche terminée !</div>
           )}
         </div>
-        <div className="text-center text-sm text-[#888]">
+        <div className="text-center text-xs sm:text-sm text-[#888]">
           <span className="text-[#f0f0f0]">{room.startArticle}</span>
           <span className="mx-2">→</span>
           <span className="text-[#7c3aed] font-bold">{room.targetArticle}</span>
         </div>
         <div>
-          <h3 className="text-xs font-bold text-[#888] uppercase tracking-wider mb-3">Classement</h3>
+          <h3 className="text-[10px] sm:text-xs font-bold text-[#888] uppercase tracking-wider mb-3">Classement</h3>
           <ul className="flex flex-col gap-2">
             {sortedPlayers.map((p, i) => (
-              <li key={p.id} className={`flex items-center gap-2.5 bg-[#1a1a1a] rounded-xl px-3.5 py-2.5 min-h-11 border ${p.id === playerId ? "border-[#7c3aed]" : "border-[#2e2e2e]"}`}>
-                <span className="text-sm font-bold text-[#888] min-w-7">#{i + 1}</span>
-                <span className="flex-1 font-semibold text-sm">{p.name}</span>
-                {p.hasWon && <span className="text-[11px] font-bold px-2 py-0.5 rounded-full bg-green-900/40 text-green-300 uppercase tracking-wide">Gagnant</span>}
-                <span className="font-bold text-[#7c3aed] text-sm">{p.score} pts</span>
+              <li key={p.id} className={`flex items-center gap-2 bg-[#1a1a1a] rounded-xl px-3.5 py-2.5 min-h-11 border ${p.id === playerId ? "border-[#7c3aed]" : "border-[#2e2e2e]"}`}>
+                <span className="text-xs sm:text-sm font-bold text-[#888] min-w-6 sm:min-w-7">#{i + 1}</span>
+                <span className="flex-1 font-semibold text-sm truncate">{p.name}</span>
+                {p.hasWon && <span className="text-[10px] font-bold px-2 py-0.5 rounded-full bg-green-900/40 text-green-300 uppercase tracking-wide shrink-0">Gagnant</span>}
+                <span className="font-bold text-[#7c3aed] text-sm shrink-0">{p.score} pts</span>
               </li>
             ))}
           </ul>
         </div>
         {isHost ? (
           <div className="flex flex-col gap-2.5">
-            <button className="w-full min-h-11 px-5 rounded-xl text-sm font-semibold bg-[#7c3aed] text-white hover:bg-[#6d28d9] cursor-pointer" onClick={onNextRound}>
-              Manche suivante
-            </button>
-            <button className="w-full min-h-11 px-5 rounded-xl text-sm font-semibold bg-[#242424] border border-[#2e2e2e] text-[#f0f0f0] hover:bg-[#1a1a1a] cursor-pointer" onClick={onResetGame}>
-              Nouvelle partie
-            </button>
+            <button className={btnPrimary} onClick={onNextRound}>Manche suivante</button>
+            <button className={btnGhost} onClick={onResetGame}>Nouvelle partie</button>
           </div>
         ) : (
-          <p className="text-sm text-[#888] text-center animate-pulse-slow">En attente de l&apos;hôte...</p>
+          <p className="text-xs sm:text-sm text-[#888] text-center animate-pulse-slow">En attente de l&apos;hôte...</p>
         )}
       </div>
     </div>
@@ -86,20 +85,20 @@ export function GameScreen({
 
   // Countdown
   if (room.phase === "countdown") return (
-    <div className="min-h-dvh w-full bg-[#0f0f0f] text-[#f0f0f0] flex items-center justify-center">
-      <div className="text-center px-6">
-        <div className="flex items-center justify-center gap-10 flex-wrap mb-12">
+    <div className="min-h-dvh w-full bg-[#0f0f0f] text-[#f0f0f0] flex items-center justify-center px-4">
+      <div className="text-center">
+        <div className="flex items-center justify-center gap-6 sm:gap-10 flex-col sm:flex-row mb-10 sm:mb-12">
           <div className="flex flex-col items-center gap-1 max-w-48">
-            <span className="text-[11px] text-[#888] uppercase tracking-wider">Départ</span>
-            <span className="text-lg font-bold text-center">{room.startArticle}</span>
+            <span className="text-[10px] sm:text-[11px] text-[#888] uppercase tracking-wider">Départ</span>
+            <span className="text-base sm:text-lg font-bold text-center">{room.startArticle}</span>
           </div>
-          <span className="text-2xl text-[#888]">→</span>
+          <span className="text-xl sm:text-2xl text-[#888] rotate-90 sm:rotate-0">→</span>
           <div className="flex flex-col items-center gap-1 max-w-48">
-            <span className="text-[11px] text-[#888] uppercase tracking-wider">Cible</span>
-            <span className="text-xl font-bold text-[#7c3aed] text-center">{room.targetArticle}</span>
+            <span className="text-[10px] sm:text-[11px] text-[#888] uppercase tracking-wider">Cible</span>
+            <span className="text-lg sm:text-xl font-bold text-[#7c3aed] text-center">{room.targetArticle}</span>
           </div>
         </div>
-        <div className="text-[clamp(80px,20vw,140px)] font-black leading-none text-[#7c3aed] animate-count-pop">
+        <div className="text-[clamp(72px,20vw,140px)] font-black leading-none text-[#7c3aed] animate-count-pop">
           {countdown !== null && countdown > 0 ? countdown : "Partez !"}
         </div>
       </div>
@@ -110,22 +109,22 @@ export function GameScreen({
   return (
     <div className="min-h-dvh w-full bg-[#0f0f0f] flex flex-col">
       {/* Topbar */}
-      <div className="sticky top-0 z-50 bg-[#0f0f0f]/97 backdrop-blur-sm border-b border-[#2e2e2e] flex items-center gap-3 px-3.5 py-2">
-        <div className="flex-1 min-w-0 flex flex-col gap-1">
+      <div className="sticky top-0 z-50 bg-[#0f0f0f]/97 backdrop-blur-sm border-b border-[#2e2e2e] flex items-center gap-2 sm:gap-3 px-3 sm:px-3.5 py-2">
+        <div className="flex-1 min-w-0 flex flex-col gap-0.5 sm:gap-1">
           <div className="flex items-center gap-1.5">
-            <span className="text-[10px] font-bold uppercase tracking-wider text-[#888] shrink-0">Cible</span>
+            <span className="text-[9px] sm:text-[10px] font-bold uppercase tracking-wider text-[#888] shrink-0">Cible</span>
             <span className="text-xs font-bold text-[#7c3aed] truncate">{room.targetArticle}</span>
           </div>
           <Breadcrumbs history={history} endRef={breadcrumbEndRef} />
         </div>
-        <div className="flex gap-3 shrink-0 text-xs font-bold text-[#888] tabular-nums">
+        <div className="flex gap-2 sm:gap-3 shrink-0 text-[10px] sm:text-xs font-bold text-[#888] tabular-nums">
           <span>{elapsed}</span>
           <span>{clicks} clics</span>
-          <span>{myPlayer?.score ?? 0} pts</span>
+          <span className="hidden sm:inline">{myPlayer?.score ?? 0} pts</span>
         </div>
       </div>
 
-      {/* Content + sidebar */}
+      {/* Content */}
       <div className="flex flex-1 min-h-0">
         <div className="flex-1 overflow-y-auto bg-white">
           {loading && (
@@ -135,7 +134,7 @@ export function GameScreen({
           )}
           {loadError && (
             <div className="flex flex-col items-center gap-4 py-10 px-4 text-center">
-              <p className="text-[#888]">{loadError}</p>
+              <p className="text-[#888] text-sm">{loadError}</p>
               <button className="min-h-11 px-5 rounded-xl text-sm font-semibold bg-[#2563eb] text-white hover:bg-[#1d4ed8] cursor-pointer" onClick={onRetry}>
                 Réessayer
               </button>
@@ -149,15 +148,15 @@ export function GameScreen({
           )}
         </div>
 
-        {/* Sidebar joueurs */}
-        <aside className="hidden sm:flex w-40 shrink-0 bg-[#1a1a1a] border-l border-[#2e2e2e] flex-col px-3 py-4 overflow-y-auto gap-3">
-          <h4 className="text-[11px] font-bold uppercase tracking-wider text-[#888]">Joueurs</h4>
+        {/* Sidebar — desktop seulement */}
+        <aside className="hidden md:flex w-36 lg:w-44 shrink-0 bg-[#1a1a1a] border-l border-[#2e2e2e] flex-col px-3 py-4 overflow-y-auto gap-3">
+          <h4 className="text-[10px] font-bold uppercase tracking-wider text-[#888]">Joueurs</h4>
           <ul className="flex flex-col gap-2.5">
             {sortedPlayers.map((p) => (
               <li key={p.id} className="flex flex-col gap-0.5">
                 <span className={`text-xs font-semibold truncate ${p.id === playerId ? "text-[#7c3aed]" : "text-[#f0f0f0]"}`}>{p.name}</span>
                 <span className="text-xs text-[#888]">{p.score} pts</span>
-                {p.hasWon && <span className="text-[11px] text-green-400 font-bold">Gagné !</span>}
+                {p.hasWon && <span className="text-[10px] text-green-400 font-bold">Gagné !</span>}
               </li>
             ))}
           </ul>
diff --git a/app/components/HomeScreen.tsx b/app/components/HomeScreen.tsx
index 796ae08..e98f302 100644
--- a/app/components/HomeScreen.tsx
+++ b/app/components/HomeScreen.tsx
@@ -25,109 +25,98 @@ export function HomeScreen({
   error, setError, loading, onCreateRoom, onJoinRoom, onSolo,
   session, onShowAuth, onShowProfile, onShowLeaderboard,
 }: HomeScreenProps) {
+  const btnGhost = "min-h-9 px-3 rounded-lg text-xs sm:text-sm font-semibold bg-[#242424] border border-[#2e2e2e] text-[#f0f0f0] hover:bg-[#1a1a1a] cursor-pointer whitespace-nowrap";
+
   return (
-    <div className="min-h-dvh w-full bg-[#0f0f0f] text-[#f0f0f0] animate-fade-in flex flex-col items-center justify-center px-4 py-6 gap-8">
+    <div className="min-h-dvh w-full bg-[#0f0f0f] text-[#f0f0f0] animate-fade-in flex flex-col items-center justify-center px-4 py-16 gap-6 sm:gap-8">
       {/* Topbar */}
-      <div className="absolute top-4 right-4 flex items-center gap-2">
-        <button
-          className="text-sm font-semibold px-3 py-1.5 rounded-lg bg-[#242424] border border-[#2e2e2e] text-[#f0f0f0] hover:bg-[#1a1a1a] cursor-pointer"
-          onClick={onShowLeaderboard}
-        >
-          🏆 Classement
-        </button>
+      <div className="fixed top-3 right-3 flex items-center gap-1.5 sm:gap-2 z-50">
+        <button className={btnGhost} onClick={onShowLeaderboard}>🏆 Classement</button>
         {session?.user ? (
           <button
-            className="flex items-center gap-2 bg-[#242424] border border-[#2e2e2e] rounded-full pl-1.5 pr-3 py-1.5 cursor-pointer hover:bg-[#1a1a1a] text-sm font-medium"
+            className="flex items-center gap-1.5 sm:gap-2 bg-[#242424] border border-[#2e2e2e] rounded-full pl-1 pr-2.5 sm:pr-3 py-1 cursor-pointer hover:bg-[#1a1a1a]"
             onClick={onShowProfile}
           >
-            <span className="w-7 h-7 rounded-full bg-[#7c3aed] text-white flex items-center justify-center text-xs font-bold">
+            <span className="w-7 h-7 rounded-full bg-[#7c3aed] text-white flex items-center justify-center text-xs font-bold shrink-0">
               {session.user.name?.[0]?.toUpperCase() ?? "?"}
             </span>
-            <span className="max-w-[120px] truncate">{session.user.name}</span>
+            <span className="hidden sm:block max-w-28 truncate text-sm font-medium">{session.user.name}</span>
           </button>
         ) : (
-          <button
-            className="text-sm font-semibold px-3 py-1.5 rounded-lg bg-[#242424] border border-[#2e2e2e] text-[#f0f0f0] hover:bg-[#1a1a1a] cursor-pointer"
-            onClick={onShowAuth}
-          >
-            Connexion / Inscription
-          </button>
+          <button className={btnGhost} onClick={onShowAuth}>Connexion</button>
         )}
       </div>
 
       {/* Hero */}
       <div className="text-center">
-        <Image src="/wikirush.png" alt="WikiRush" width={320} height={320} className="w-[clamp(200px,55vw,320px)] h-auto mx-auto mix-blend-screen" priority />
-        <p className="mt-3 text-[#888] text-sm max-w-[360px] mx-auto">
+        <Image
+          src="/wikirush.png" alt="WikiRush" width={320} height={320}
+          className="w-40 sm:w-56 md:w-72 h-auto mx-auto mix-blend-screen"
+          priority
+        />
+        <p className="mt-2 text-[#888] text-xs sm:text-sm max-w-xs sm:max-w-sm mx-auto leading-relaxed">
           Navigue entre les articles Wikipedia pour atteindre la cible en premier !
         </p>
       </div>
 
       {/* Form */}
-      <div className="w-full max-w-[400px] flex flex-col gap-4">
+      <div className="w-full max-w-sm sm:max-w-md flex flex-col gap-3 sm:gap-4">
         {error && (
-          <div className="flex items-center justify-between gap-3 bg-red-950/40 border border-red-600 text-red-300 px-3 py-2.5 rounded-xl text-sm">
+          <div className="flex items-center justify-between gap-3 bg-red-950/40 border border-red-600 text-red-300 px-3 py-2.5 rounded-xl text-xs sm:text-sm">
             {error}
-            <button onClick={() => setError(null)} className="text-base px-1.5 py-0.5 rounded hover:bg-white/10 cursor-pointer">✕</button>
+            <button onClick={() => setError(null)} className="shrink-0 px-1.5 py-0.5 rounded hover:bg-white/10 cursor-pointer">✕</button>
           </div>
         )}
 
         <input
-          className="w-full min-h-[44px] px-3.5 bg-[#1a1a1a] border-[1.5px] border-[#2e2e2e] rounded-xl text-[#f0f0f0] text-sm outline-none focus:border-[#7c3aed]"
-          type="text"
-          placeholder="Ton pseudo"
-          value={playerName}
-          onChange={(e) => setPlayerName(e.target.value)}
-          maxLength={20}
-          onKeyDown={(e) => e.key === "Enter" && onCreateRoom()}
+          className="w-full min-h-11 px-3.5 bg-[#1a1a1a] border-[1.5px] border-[#2e2e2e] rounded-xl text-[#f0f0f0] text-sm outline-none focus:border-[#7c3aed] transition-colors"
+          type="text" placeholder="Ton pseudo"
+          value={playerName} onChange={(e) => setPlayerName(e.target.value)}
+          maxLength={20} onKeyDown={(e) => e.key === "Enter" && onCreateRoom()}
         />
 
-        <div className="flex flex-col gap-4">
-          {/* Multijoueur */}
-          <div className="bg-[#1a1a1a] border border-[#2e2e2e] rounded-xl p-5 flex flex-col gap-3">
-            <h3 className="text-xs font-bold text-[#888] uppercase tracking-wider">Multijoueur</h3>
+        {/* Multijoueur */}
+        <div className="bg-[#1a1a1a] border border-[#2e2e2e] rounded-xl p-4 sm:p-5 flex flex-col gap-3">
+          <h3 className="text-[10px] sm:text-xs font-bold text-[#888] uppercase tracking-wider">Multijoueur</h3>
+          <button
+            className="w-full min-h-11 rounded-xl text-sm font-semibold bg-[#7c3aed] text-white hover:bg-[#6d28d9] disabled:opacity-50 cursor-pointer transition-colors"
+            onClick={onCreateRoom} disabled={loading}
+          >
+            {loading ? "Création..." : "Créer une partie"}
+          </button>
+          {/* Join row — colonne sur mobile, ligne sur sm+ */}
+          <div className="flex flex-col sm:flex-row gap-2">
+            <input
+              className="flex-1 min-h-11 px-3.5 bg-[#0f0f0f] border-[1.5px] border-[#2e2e2e] rounded-xl text-[#f0f0f0] font-mono text-base sm:text-lg tracking-widest uppercase outline-none focus:border-[#7c3aed] transition-colors"
+              type="text" placeholder="CODE (ex: WIKI)"
+              value={joinCode} onChange={(e) => setJoinCode(e.target.value.toUpperCase().slice(0, 4))}
+              maxLength={4} onKeyDown={(e) => e.key === "Enter" && onJoinRoom()}
+            />
             <button
-              className="w-full min-h-[44px] px-5 rounded-xl text-sm font-semibold bg-[#7c3aed] text-white hover:bg-[#6d28d9] disabled:opacity-50 cursor-pointer"
-              onClick={onCreateRoom} disabled={loading}
+              className="w-full sm:w-auto min-h-11 px-5 rounded-xl text-sm font-semibold bg-[#2563eb] text-white hover:bg-[#1d4ed8] disabled:opacity-50 cursor-pointer shrink-0 transition-colors"
+              onClick={onJoinRoom} disabled={loading}
             >
-              {loading ? "Création..." : "Créer une partie"}
-            </button>
-            <div className="flex gap-2.5 items-center">
-              <input
-                className="flex-1 min-h-[44px] px-3.5 bg-[#0f0f0f] border-[1.5px] border-[#2e2e2e] rounded-xl text-[#f0f0f0] font-mono text-lg tracking-widest uppercase outline-none focus:border-[#7c3aed]"
-                type="text"
-                placeholder="CODE"
-                value={joinCode}
-                onChange={(e) => setJoinCode(e.target.value.toUpperCase().slice(0, 4))}
-                maxLength={4}
-                onKeyDown={(e) => e.key === "Enter" && onJoinRoom()}
-              />
-              <button
-                className="min-h-[44px] px-5 rounded-xl text-sm font-semibold bg-[#2563eb] text-white hover:bg-[#1d4ed8] disabled:opacity-50 cursor-pointer flex-shrink-0"
-                onClick={onJoinRoom} disabled={loading}
-              >
-                Rejoindre
-              </button>
-            </div>
-          </div>
-
-          {/* Divider */}
-          <div className="relative text-center text-[#888] text-xs">
-            <span className="relative z-10 px-3 bg-[#0f0f0f]">ou</span>
-            <div className="absolute inset-x-0 top-1/2 h-px bg-[#2e2e2e] -z-0" />
-          </div>
-
-          {/* Solo */}
-          <div className="bg-[#1a1a1a] border border-[#2e2e2e] rounded-xl p-5 flex flex-col gap-3">
-            <h3 className="text-xs font-bold text-[#888] uppercase tracking-wider">Solo</h3>
-            <button
-              className="w-full min-h-[44px] px-5 rounded-xl text-sm font-semibold bg-[#242424] border border-[#2e2e2e] text-[#f0f0f0] hover:bg-[#1a1a1a] cursor-pointer"
-              onClick={onSolo}
-            >
-              Jouer en solo
+              Rejoindre
             </button>
           </div>
         </div>
+
+        {/* Divider */}
+        <div className="relative text-center text-[#888] text-xs py-1">
+          <span className="relative z-10 px-3 bg-[#0f0f0f]">ou</span>
+          <div className="absolute inset-x-0 top-1/2 h-px bg-[#2e2e2e]" />
+        </div>
+
+        {/* Solo */}
+        <div className="bg-[#1a1a1a] border border-[#2e2e2e] rounded-xl p-4 sm:p-5 flex flex-col gap-3">
+          <h3 className="text-[10px] sm:text-xs font-bold text-[#888] uppercase tracking-wider">Solo</h3>
+          <button
+            className="w-full min-h-11 rounded-xl text-sm font-semibold bg-[#242424] border border-[#2e2e2e] text-[#f0f0f0] hover:bg-[#1a1a1a] cursor-pointer transition-colors"
+            onClick={onSolo}
+          >
+            Jouer en solo
+          </button>
+        </div>
       </div>
     </div>
   );
diff --git a/app/components/LeaderboardScreen.tsx b/app/components/LeaderboardScreen.tsx
index b850f31..1c73d5b 100644
--- a/app/components/LeaderboardScreen.tsx
+++ b/app/components/LeaderboardScreen.tsx
@@ -37,11 +37,7 @@ export function LeaderboardScreen({ onBack }: { onBack: () => void }) {
   }, []);
 
   const sorted = [...rows]
-    .filter((r) => {
-      if (mode === "solo") return r.soloGames > 0;
-      if (mode === "multi") return r.multiGames > 0;
-      return true;
-    })
+    .filter((r) => mode === "solo" ? r.soloGames > 0 : mode === "multi" ? r.multiGames > 0 : true)
     .sort((a, b) => {
       if (mode === "solo") return b.soloWins - a.soloWins || b.soloGames - a.soloGames;
       if (mode === "multi") return b.multiWins - a.multiWins || b.multiGames - a.multiGames;
@@ -49,24 +45,27 @@ export function LeaderboardScreen({ onBack }: { onBack: () => void }) {
     });
 
   return (
-    <div className="min-h-dvh w-full bg-[#0f0f0f] text-[#f0f0f0] animate-fade-in max-w-160 mx-auto px-4 py-6 pb-12">
+    <div className="min-h-dvh w-full bg-[#0f0f0f] text-[#f0f0f0] animate-fade-in max-w-2xl mx-auto px-4 py-5 sm:py-6 pb-12">
       {/* Header */}
-      <div className="flex items-center gap-4 mb-6">
-        <button className="min-h-9.5 px-3.5 rounded-xl text-sm font-semibold bg-[#242424] border border-[#2e2e2e] text-[#f0f0f0] hover:bg-[#1a1a1a] cursor-pointer" onClick={onBack}>
+      <div className="flex items-center gap-3 sm:gap-4 mb-5 sm:mb-6">
+        <button
+          className="min-h-9 px-3 rounded-lg text-xs sm:text-sm font-semibold bg-[#242424] border border-[#2e2e2e] text-[#f0f0f0] hover:bg-[#1a1a1a] cursor-pointer shrink-0"
+          onClick={onBack}
+        >
           Retour
         </button>
-        <h2 className="text-2xl font-black">Classement</h2>
+        <h2 className="text-xl sm:text-2xl font-black">Classement</h2>
       </div>
 
       {/* Tabs */}
-      <div className="flex gap-2 mb-5">
+      <div className="flex gap-2 mb-4 sm:mb-5">
         {(["all", "solo", "multi"] as Mode[]).map((m) => (
           <button
             key={m}
-            className={`flex-1 py-2 rounded-xl text-xs font-semibold border cursor-pointer transition-colors ${mode === m ? "bg-[#7c3aed] border-[#7c3aed] text-white" : "bg-[#1a1a1a] border-[#2e2e2e] text-[#888] hover:text-[#f0f0f0]"}`}
+            className={`flex-1 py-2 rounded-xl text-xs sm:text-sm font-semibold border cursor-pointer transition-colors ${mode === m ? "bg-[#7c3aed] border-[#7c3aed] text-white" : "bg-[#1a1a1a] border-[#2e2e2e] text-[#888] hover:text-[#f0f0f0]"}`}
             onClick={() => setMode(m)}
           >
-            {m === "all" ? "Global" : m === "solo" ? "Solo" : "Multijoueur"}
+            {m === "all" ? "Global" : m === "solo" ? "Solo" : "Multi"}
           </button>
         ))}
       </div>
@@ -74,38 +73,34 @@ export function LeaderboardScreen({ onBack }: { onBack: () => void }) {
       {loading ? (
         <div className="flex justify-center py-12"><div className="spinner" /></div>
       ) : sorted.length === 0 ? (
-        <p className="text-[#888] text-center py-12">Aucune partie jouée pour le moment.</p>
+        <p className="text-[#888] text-sm text-center py-12">Aucune partie jouée pour le moment.</p>
       ) : (
-        <div className="flex flex-col gap-2.5">
+        <div className="flex flex-col gap-2 sm:gap-2.5">
           {sorted.map((row, i) => {
             const games = mode === "solo" ? row.soloGames : mode === "multi" ? row.multiGames : row.totalGames;
             const wins = mode === "solo" ? row.soloWins : mode === "multi" ? row.multiWins : row.wins;
-            const isTop = i < 3;
 
             return (
-              <div
-                key={row.id}
-                className={`flex items-center gap-3 px-4 py-3.5 rounded-xl border ${isTop ? "border-[#7c3aed] bg-[#7c3aed]/8" : "border-[#2e2e2e] bg-[#1a1a1a]"}`}
-              >
-                <span className="text-xl w-8 text-center shrink-0">{MEDALS[i] ?? `#${i + 1}`}</span>
-                <span className="flex-1 font-bold text-sm truncate">{row.name}</span>
-                <div className="flex gap-4 shrink-0">
+              <div key={row.id} className={`flex items-center gap-2.5 sm:gap-3 px-3.5 sm:px-4 py-3 sm:py-3.5 rounded-xl border ${i < 3 ? "border-[#7c3aed] bg-[#7c3aed]/8" : "border-[#2e2e2e] bg-[#1a1a1a]"}`}>
+                <span className="text-lg sm:text-xl w-7 sm:w-8 text-center shrink-0">{MEDALS[i] ?? `#${i + 1}`}</span>
+                <span className="flex-1 font-bold text-xs sm:text-sm truncate">{row.name}</span>
+                <div className="flex gap-2.5 sm:gap-4 shrink-0">
                   <div className="flex flex-col items-center gap-0.5">
-                    <span className="text-sm font-black tabular-nums">{wins}</span>
-                    <span className="text-[9px] font-bold uppercase tracking-wider text-[#888]">victoires</span>
+                    <span className="text-xs sm:text-sm font-black tabular-nums">{wins}</span>
+                    <span className="text-[8px] sm:text-[9px] font-bold uppercase tracking-wider text-[#888]">victoires</span>
                   </div>
                   <div className="flex flex-col items-center gap-0.5">
-                    <span className="text-sm font-black tabular-nums">{games}</span>
-                    <span className="text-[9px] font-bold uppercase tracking-wider text-[#888]">parties</span>
+                    <span className="text-xs sm:text-sm font-black tabular-nums">{games}</span>
+                    <span className="text-[8px] sm:text-[9px] font-bold uppercase tracking-wider text-[#888]">parties</span>
                   </div>
                   {row.avgClicks != null && (
-                    <div className="flex flex-col items-center gap-0.5">
+                    <div className="hidden sm:flex flex-col items-center gap-0.5">
                       <span className="text-sm font-black tabular-nums">{row.avgClicks}</span>
                       <span className="text-[9px] font-bold uppercase tracking-wider text-[#888]">moy. clics</span>
                     </div>
                   )}
                   {row.bestTime != null && (
-                    <div className="flex flex-col items-center gap-0.5">
+                    <div className="hidden sm:flex flex-col items-center gap-0.5">
                       <span className="text-sm font-black tabular-nums">{fmt(row.bestTime)}</span>
                       <span className="text-[9px] font-bold uppercase tracking-wider text-[#888]">meilleur</span>
                     </div>
diff --git a/app/components/LobbyScreen.tsx b/app/components/LobbyScreen.tsx
index 36465d1..28113bf 100644
--- a/app/components/LobbyScreen.tsx
+++ b/app/components/LobbyScreen.tsx
@@ -27,83 +27,66 @@ export function LobbyScreen({
     });
   }
 
+  const btnGhost = "w-full min-h-11 px-5 rounded-xl text-sm font-semibold bg-[#242424] border border-[#2e2e2e] text-[#f0f0f0] hover:bg-[#1a1a1a] cursor-pointer transition-colors";
+  const btnPrimary = "w-full min-h-11 px-5 rounded-xl text-sm font-semibold bg-[#7c3aed] text-white hover:bg-[#6d28d9] disabled:opacity-50 cursor-pointer transition-colors";
+
   return (
-    <div className="min-h-dvh w-full bg-[#0f0f0f] text-[#f0f0f0] animate-fade-in flex flex-col items-center px-4 py-5 gap-6 max-w-120 mx-auto">
-      <button className="self-start min-h-9.5 px-3.5 rounded-xl text-sm font-semibold bg-[#242424] border border-[#2e2e2e] text-[#f0f0f0] hover:bg-[#1a1a1a] cursor-pointer" onClick={onLeave}>
+    <div className="min-h-dvh w-full bg-[#0f0f0f] text-[#f0f0f0] animate-fade-in flex flex-col items-center px-4 py-5 gap-5 sm:gap-6 max-w-120 mx-auto">
+      <button className="self-start min-h-9 px-3 rounded-lg text-sm font-semibold bg-[#242424] border border-[#2e2e2e] text-[#f0f0f0] hover:bg-[#1a1a1a] cursor-pointer" onClick={onLeave}>
         Quitter
       </button>
 
-      {/* Code block */}
-      <div className="w-full text-center bg-[#1a1a1a] border border-[#2e2e2e] rounded-xl p-6">
-        <span className="block text-xs text-[#888] uppercase tracking-widest mb-2">Code de la salle</span>
-        <button
-          className="flex items-center justify-center gap-2.5 mx-auto px-2 py-1 rounded-lg hover:bg-[#242424] cursor-pointer border-none bg-transparent"
-          onClick={copyCode}
-        >
-          <span className="text-[clamp(42px,12vw,64px)] font-black font-mono tracking-[0.15em] text-[#7c3aed] leading-none">
+      {/* Code */}
+      <div className="w-full text-center bg-[#1a1a1a] border border-[#2e2e2e] rounded-xl p-5 sm:p-6">
+        <span className="block text-[10px] sm:text-xs text-[#888] uppercase tracking-widest mb-2">Code de la salle</span>
+        <button className="flex items-center justify-center gap-2 mx-auto px-2 py-1 rounded-lg hover:bg-[#242424] cursor-pointer bg-transparent border-none" onClick={copyCode}>
+          <span className="text-5xl sm:text-[clamp(42px,12vw,64px)] font-black font-mono tracking-[0.15em] text-[#7c3aed] leading-none">
             {room.code}
           </span>
-          <span className={`text-xl leading-none ${copied ? "text-green-400" : "text-[#888]"}`}>
+          <span className={`text-lg sm:text-xl leading-none transition-colors ${copied ? "text-green-400" : "text-[#888]"}`}>
             {copied ? "✓" : "⧉"}
           </span>
         </button>
-        <span className="block text-xs text-[#888] mt-2">
-          {copied ? "Copié !" : "Clique sur le code pour le copier"}
-        </span>
+        <span className="block text-xs text-[#888] mt-2">{copied ? "Copié !" : "Clique pour copier"}</span>
       </div>
 
       {error && (
-        <div className="w-full flex items-center justify-between gap-3 bg-red-950/40 border border-red-600 text-red-300 px-3 py-2.5 rounded-xl text-sm">
+        <div className="w-full flex items-center justify-between gap-3 bg-red-950/40 border border-red-600 text-red-300 px-3 py-2.5 rounded-xl text-xs sm:text-sm">
           {error}
-          <button onClick={() => setError(null)} className="text-base px-1.5 rounded hover:bg-white/10 cursor-pointer">✕</button>
+          <button onClick={() => setError(null)} className="shrink-0 px-1.5 rounded hover:bg-white/10 cursor-pointer">✕</button>
         </div>
       )}
 
       {/* Players */}
       <div className="w-full">
-        <h3 className="text-xs font-bold text-[#888] uppercase tracking-wider mb-2">
+        <h3 className="text-[10px] sm:text-xs font-bold text-[#888] uppercase tracking-wider mb-2">
           Joueurs ({room.players.length}/8)
         </h3>
         <ul className="flex flex-col gap-2">
           {room.players.map((p) => (
-            <li
-              key={p.id}
-              className={`flex items-center gap-2 bg-[#1a1a1a] rounded-xl px-3.5 py-2.5 min-h-11 border ${p.id === playerId ? "border-[#7c3aed]" : "border-[#2e2e2e]"}`}
-            >
-              <span className="flex-1 font-semibold text-sm">{p.name}</span>
-              {p.isHost && <span className="text-[11px] font-bold px-2 py-0.5 rounded-full bg-purple-900/40 text-purple-300 uppercase tracking-wide">Hôte</span>}
-              {p.id === playerId && <span className="text-[11px] font-bold px-2 py-0.5 rounded-full bg-blue-900/40 text-blue-300 uppercase tracking-wide">Toi</span>}
-              <span className="text-sm font-bold text-[#7c3aed] min-w-12.5 text-right">{p.score} pts</span>
+            <li key={p.id} className={`flex items-center gap-2 bg-[#1a1a1a] rounded-xl px-3.5 py-2.5 min-h-11 border ${p.id === playerId ? "border-[#7c3aed]" : "border-[#2e2e2e]"}`}>
+              <span className="flex-1 font-semibold text-sm truncate">{p.name}</span>
+              {p.isHost && <span className="text-[10px] font-bold px-2 py-0.5 rounded-full bg-purple-900/40 text-purple-300 uppercase tracking-wide shrink-0">Hôte</span>}
+              {p.id === playerId && <span className="text-[10px] font-bold px-2 py-0.5 rounded-full bg-blue-900/40 text-blue-300 uppercase tracking-wide shrink-0">Toi</span>}
+              <span className="text-sm font-bold text-[#7c3aed] shrink-0">{p.score} pts</span>
             </li>
           ))}
         </ul>
       </div>
 
-      {room.round > 0 && (
-        <p className="text-xs text-[#888] text-center">Manche {room.round} terminée</p>
-      )}
+      {room.round > 0 && <p className="text-xs text-[#888] text-center">Manche {room.round} terminée</p>}
 
       {isHost ? (
         <div className="w-full flex flex-col gap-2.5">
-          <button
-            className="w-full min-h-11 px-5 rounded-xl text-sm font-semibold bg-[#7c3aed] text-white hover:bg-[#6d28d9] disabled:opacity-50 cursor-pointer"
-            onClick={onStart} disabled={loading}
-          >
+          <button className={btnPrimary} onClick={onStart} disabled={loading}>
             {loading ? "Préparation..." : room.round === 0 ? "Démarrer la partie" : "Manche suivante"}
           </button>
           {room.round > 0 && (
-            <button
-              className="w-full min-h-11 px-5 rounded-xl text-sm font-semibold bg-[#242424] border border-[#2e2e2e] text-[#f0f0f0] hover:bg-[#1a1a1a] cursor-pointer"
-              onClick={onReset}
-            >
-              Nouvelle partie (reset scores)
-            </button>
+            <button className={btnGhost} onClick={onReset}>Nouvelle partie (reset scores)</button>
           )}
         </div>
       ) : (
-        <p className="text-sm text-[#888] text-center animate-pulse-slow">
-          En attente que l&apos;hôte démarre...
-        </p>
+        <p className="text-sm text-[#888] text-center animate-pulse-slow">En attente que l&apos;hôte démarre...</p>
       )}
     </div>
   );
diff --git a/app/components/ProfileScreen.tsx b/app/components/ProfileScreen.tsx
index dff1309..cd6a199 100644
--- a/app/components/ProfileScreen.tsx
+++ b/app/components/ProfileScreen.tsx
@@ -57,54 +57,50 @@ export function ProfileScreen({ userName, onBack }: { userName: string; onBack:
   const filtered = filter === "all" ? games : games.filter((g) => g.mode === filter);
   const stats = computeStats(filtered);
 
-  const statCardCls = "bg-[#1a1a1a] border border-[#2e2e2e] rounded-xl p-3.5 text-center flex flex-col gap-1";
+  const statCard = "bg-[#1a1a1a] border border-[#2e2e2e] rounded-xl p-3 sm:p-3.5 text-center flex flex-col gap-1";
+  const btnGhost = "min-h-9 px-3 rounded-lg text-xs sm:text-sm font-semibold bg-[#242424] border border-[#2e2e2e] text-[#f0f0f0] hover:bg-[#1a1a1a] cursor-pointer transition-colors";
 
   return (
-    <div className="min-h-dvh w-full bg-[#0f0f0f] text-[#f0f0f0] animate-fade-in flex flex-col max-w-175 mx-auto px-4 pb-10">
+    <div className="min-h-dvh w-full bg-[#0f0f0f] text-[#f0f0f0] animate-fade-in flex flex-col max-w-2xl mx-auto px-4 pb-10">
       {/* Header */}
-      <div className="flex items-center justify-between py-4 gap-3">
-        <button className="min-h-9.5 px-3.5 rounded-xl text-sm font-semibold bg-[#242424] border border-[#2e2e2e] text-[#f0f0f0] hover:bg-[#1a1a1a] cursor-pointer" onClick={onBack}>
-          ← Retour
-        </button>
-        <div className="flex items-center gap-2.5">
-          <span className="w-10 h-10 rounded-full bg-[#7c3aed] text-white flex items-center justify-center text-lg font-bold shrink-0">
+      <div className="flex items-center justify-between py-4 gap-2">
+        <button className={btnGhost} onClick={onBack}>← Retour</button>
+        <div className="flex items-center gap-2">
+          <span className="w-8 h-8 sm:w-10 sm:h-10 rounded-full bg-[#7c3aed] text-white flex items-center justify-center text-base sm:text-lg font-bold shrink-0">
             {userName[0].toUpperCase()}
           </span>
-          <h2 className="text-xl font-bold">{userName}</h2>
+          <h2 className="text-base sm:text-xl font-bold truncate max-w-32 sm:max-w-none">{userName}</h2>
         </div>
-        <button
-          className="min-h-9.5 px-3.5 rounded-xl text-sm font-semibold bg-[#242424] border border-[#2e2e2e] text-[#f0f0f0] hover:bg-[#1a1a1a] cursor-pointer"
-          onClick={() => signOut({ redirect: false }).then(onBack)}
-        >
-          Déconnexion
+        <button className={btnGhost} onClick={() => signOut({ redirect: false }).then(onBack)}>
+          Déco
         </button>
       </div>
 
       {/* Stats grid */}
-      <div className="grid grid-cols-3 gap-2.5 my-4">
-        <div className={statCardCls}>
-          <span className="text-[22px] font-black">{stats.total}</span>
-          <span className="text-[11px] uppercase tracking-wider text-[#888]">Parties</span>
+      <div className="grid grid-cols-3 gap-2 sm:gap-2.5 my-3 sm:my-4">
+        <div className={statCard}>
+          <span className="text-lg sm:text-[22px] font-black">{stats.total}</span>
+          <span className="text-[9px] sm:text-[11px] uppercase tracking-wider text-[#888]">Parties</span>
         </div>
-        <div className={statCardCls}>
-          <span className="text-[22px] font-black">{stats.won}</span>
-          <span className="text-[11px] uppercase tracking-wider text-[#888]">Victoires</span>
+        <div className={statCard}>
+          <span className="text-lg sm:text-[22px] font-black">{stats.won}</span>
+          <span className="text-[9px] sm:text-[11px] uppercase tracking-wider text-[#888]">Victoires</span>
         </div>
-        <div className={statCardCls}>
-          <span className="text-[22px] font-black">{stats.avgClicks > 0 ? stats.avgClicks : "—"}</span>
-          <span className="text-[11px] uppercase tracking-wider text-[#888]">Clics moy.</span>
+        <div className={statCard}>
+          <span className="text-lg sm:text-[22px] font-black">{stats.avgClicks > 0 ? stats.avgClicks : "—"}</span>
+          <span className="text-[9px] sm:text-[11px] uppercase tracking-wider text-[#888]">Clics moy.</span>
         </div>
-        <div className={statCardCls}>
-          <span className="text-[22px] font-black">{stats.avgTime > 0 ? fmt(stats.avgTime) : "—"}</span>
-          <span className="text-[11px] uppercase tracking-wider text-[#888]">Temps moy.</span>
+        <div className={statCard}>
+          <span className="text-lg sm:text-[22px] font-black">{stats.avgTime > 0 ? fmt(stats.avgTime) : "—"}</span>
+          <span className="text-[9px] sm:text-[11px] uppercase tracking-wider text-[#888]">Temps moy.</span>
         </div>
-        <div className={`${statCardCls} border-[#7c3aed]`}>
-          <span className="text-[22px] font-black text-[#7c3aed]">{stats.bestClicks > 0 ? stats.bestClicks : "—"}</span>
-          <span className="text-[11px] uppercase tracking-wider text-[#888]">Meilleur clics</span>
+        <div className={`${statCard} border-[#7c3aed]`}>
+          <span className="text-lg sm:text-[22px] font-black text-[#7c3aed]">{stats.bestClicks > 0 ? stats.bestClicks : "—"}</span>
+          <span className="text-[9px] sm:text-[11px] uppercase tracking-wider text-[#888]">Meilleur clics</span>
         </div>
-        <div className={`${statCardCls} border-[#7c3aed]`}>
-          <span className="text-[22px] font-black text-[#7c3aed]">{stats.bestTime > 0 ? fmt(stats.bestTime) : "—"}</span>
-          <span className="text-[11px] uppercase tracking-wider text-[#888]">Meilleur temps</span>
+        <div className={`${statCard} border-[#7c3aed]`}>
+          <span className="text-lg sm:text-[22px] font-black text-[#7c3aed]">{stats.bestTime > 0 ? fmt(stats.bestTime) : "—"}</span>
+          <span className="text-[9px] sm:text-[11px] uppercase tracking-wider text-[#888]">Meilleur temps</span>
         </div>
       </div>
 
@@ -113,7 +109,7 @@ export function ProfileScreen({ userName, onBack }: { userName: string; onBack:
         {(["all", "solo", "multi"] as const).map((f) => (
           <button
             key={f}
-            className={`px-4 py-1.5 rounded-full text-xs font-semibold border cursor-pointer transition-colors ${filter === f ? "bg-[#7c3aed] border-[#7c3aed] text-white" : "bg-[#242424] border-[#2e2e2e] text-[#888] hover:text-[#f0f0f0]"}`}
+            className={`px-3 sm:px-4 py-1.5 rounded-full text-xs font-semibold border cursor-pointer transition-colors ${filter === f ? "bg-[#7c3aed] border-[#7c3aed] text-white" : "bg-[#242424] border-[#2e2e2e] text-[#888] hover:text-[#f0f0f0]"}`}
             onClick={() => setFilter(f)}
           >
             {f === "all" ? "Tout" : f === "solo" ? "Solo" : "Multi"}
@@ -122,36 +118,36 @@ export function ProfileScreen({ userName, onBack }: { userName: string; onBack:
       </div>
 
       {/* Game list */}
-      <div className="flex flex-col gap-2.5">
+      <div className="flex flex-col gap-2 sm:gap-2.5">
         {loading && (
           <div className="flex items-center gap-3 py-10 text-[#888]"><div className="spinner" /> Chargement...</div>
         )}
         {!loading && filtered.length === 0 && (
-          <p className="text-[#888] text-center py-10">Aucune partie enregistrée.</p>
+          <p className="text-[#888] text-sm text-center py-10">Aucune partie enregistrée.</p>
         )}
         {filtered.map((g) => (
-          <div key={g.id} className={`bg-[#1a1a1a] rounded-xl px-4 py-3.5 flex flex-col gap-2 border-l-4 ${g.won ? "border-l-[#16a34a] border-y border-r border-[#2e2e2e]" : "border-l-[#2e2e2e] border-y border-r border-[#2e2e2e] opacity-70"}`}>
-            <div className="flex items-center gap-2.5 text-xs">
-              <span className="bg-[#242424] rounded px-2 py-0.5 font-semibold text-[#888]">{g.mode === "solo" ? "Solo" : "Multi"}</span>
-              <span className="text-[#888] ml-auto">{new Date(g.playedAt).toLocaleDateString("fr-FR")}</span>
-              <span className={`font-bold ${g.won ? "text-[#16a34a]" : "text-[#888]"}`}>{g.won ? "Victoire" : "Abandon"}</span>
+          <div key={g.id} className={`bg-[#1a1a1a] rounded-xl px-3.5 sm:px-4 py-3 sm:py-3.5 flex flex-col gap-2 border-l-4 border-y border-r ${g.won ? "border-l-[#16a34a] border-[#2e2e2e]" : "border-l-[#2e2e2e] border-[#2e2e2e] opacity-70"}`}>
+            <div className="flex items-center gap-2 text-xs">
+              <span className="bg-[#242424] rounded px-1.5 sm:px-2 py-0.5 font-semibold text-[#888] shrink-0">{g.mode === "solo" ? "Solo" : "Multi"}</span>
+              <span className="text-[#888] ml-auto shrink-0">{new Date(g.playedAt).toLocaleDateString("fr-FR")}</span>
+              <span className={`font-bold shrink-0 ${g.won ? "text-[#16a34a]" : "text-[#888]"}`}>{g.won ? "Victoire" : "Abandon"}</span>
             </div>
-            <div className="flex items-center gap-2 text-sm font-semibold flex-wrap">
-              <span>{g.startArticle}</span>
-              <span className="text-[#888]">→</span>
-              <span className="text-[#7c3aed]">{g.targetArticle}</span>
+            <div className="flex items-center gap-1.5 sm:gap-2 text-xs sm:text-sm font-semibold flex-wrap">
+              <span className="truncate max-w-[40%]">{g.startArticle}</span>
+              <span className="text-[#888] shrink-0">→</span>
+              <span className="text-[#7c3aed] truncate max-w-[40%]">{g.targetArticle}</span>
             </div>
             {g.won && (
-              <div className="flex gap-4 text-xs text-[#888]">
+              <div className="flex flex-wrap gap-2 sm:gap-4 text-xs text-[#888]">
                 <span>{g.clicks} clics</span>
                 <span>{fmt(g.timeSeconds)}</span>
-                <span>{g.path.length - 1} articles parcourus</span>
+                <span>{g.path.length - 1} articles</span>
               </div>
             )}
             {g.path.length > 0 && (
-              <div className="flex flex-wrap gap-1 text-xs text-[#888] pt-1 border-t border-[#2e2e2e]">
+              <div className="flex flex-wrap gap-1 text-xs text-[#888] pt-1.5 border-t border-[#2e2e2e]">
                 {g.path.map((t, i) => (
-                  <span key={i} className="flex items-center gap-1">
+                  <span key={i} className="flex items-center gap-0.5">
                     {i > 0 && <span className="text-[#555]">›</span>}
                     <span className={i === g.path.length - 1 && g.won ? "text-[#16a34a] font-semibold" : ""}>{t}</span>
                   </span>
diff --git a/app/components/SoloScreen.tsx b/app/components/SoloScreen.tsx
index f323b91..3e47f2a 100644
--- a/app/components/SoloScreen.tsx
+++ b/app/components/SoloScreen.tsx
@@ -36,40 +36,40 @@ export function SoloScreen({
     breadcrumbEndRef.current?.scrollIntoView({ behavior: "smooth", block: "nearest", inline: "end" });
   }, [history]);
 
+  const btnPrimary = "w-full min-h-11 rounded-xl text-sm font-semibold bg-[#7c3aed] text-white hover:bg-[#6d28d9] disabled:opacity-50 cursor-pointer transition-colors";
+  const btnGhost = "w-full min-h-11 rounded-xl text-sm font-semibold bg-[#242424] border border-[#2e2e2e] text-[#f0f0f0] hover:bg-[#1a1a1a] cursor-pointer transition-colors";
+
   if (phase === "setup") return (
-    <div className="min-h-dvh w-full bg-[#0f0f0f] text-[#f0f0f0] animate-fade-in flex flex-col items-center justify-center px-4 py-6 gap-5 max-w-100 mx-auto text-center">
-      <button className="self-start min-h-9.5 px-3.5 rounded-xl text-sm font-semibold bg-[#242424] border border-[#2e2e2e] text-[#f0f0f0] hover:bg-[#1a1a1a] cursor-pointer" onClick={onQuit}>
+    <div className="min-h-dvh w-full bg-[#0f0f0f] text-[#f0f0f0] animate-fade-in flex flex-col items-center justify-center px-4 py-8 gap-5 max-w-sm mx-auto text-center">
+      <button className="self-start min-h-9 px-3 rounded-lg text-sm font-semibold bg-[#242424] border border-[#2e2e2e] text-[#f0f0f0] hover:bg-[#1a1a1a] cursor-pointer" onClick={onQuit}>
         Retour
       </button>
-      <h2 className="text-3xl font-black">Mode Solo</h2>
-      <p className="text-[#888] text-sm leading-relaxed">
+      <h2 className="text-2xl sm:text-3xl font-black">Mode Solo</h2>
+      <p className="text-[#888] text-sm sm:text-base leading-relaxed">
         Deux articles aléatoires seront choisis. Atteins l&apos;article cible en cliquant uniquement sur les liens !
       </p>
-      <button
-        className="w-full min-h-11 px-5 rounded-xl text-sm font-semibold bg-[#7c3aed] text-white hover:bg-[#6d28d9] disabled:opacity-50 cursor-pointer"
-        onClick={onStart} disabled={loading}
-      >
+      <button className={btnPrimary} onClick={onStart} disabled={loading}>
         {loading ? "Préparation..." : "Lancer une partie"}
       </button>
     </div>
   );
 
   if (phase === "won") return (
-    <div className="min-h-dvh w-full bg-[#0f0f0f] text-[#f0f0f0] animate-fade-in flex items-center justify-center px-4 py-6">
-      <div className="w-full max-w-96 text-center flex flex-col gap-5">
-        <div className="text-6xl leading-none">🎉</div>
-        <h2 className="text-3xl font-black">Article atteint !</h2>
-        <div className="flex gap-6 justify-center">
+    <div className="min-h-dvh w-full bg-[#0f0f0f] text-[#f0f0f0] animate-fade-in flex items-center justify-center px-4 py-8">
+      <div className="w-full max-w-sm sm:max-w-md text-center flex flex-col gap-4 sm:gap-5">
+        <div className="text-5xl sm:text-6xl leading-none">🎉</div>
+        <h2 className="text-2xl sm:text-3xl font-black">Article atteint !</h2>
+        <div className="flex gap-6 sm:gap-8 justify-center">
           <div className="flex flex-col gap-1">
-            <span className="text-4xl font-black text-[#7c3aed]">{clicks}</span>
+            <span className="text-3xl sm:text-4xl font-black text-[#7c3aed]">{clicks}</span>
             <span className="text-xs text-[#888]">clics</span>
           </div>
           <div className="flex flex-col gap-1">
-            <span className="text-4xl font-black text-[#7c3aed]">{elapsedDisplay}</span>
+            <span className="text-3xl sm:text-4xl font-black text-[#7c3aed]">{elapsedDisplay}</span>
             <span className="text-xs text-[#888]">temps</span>
           </div>
         </div>
-        <div className="bg-[#1a1a1a] rounded-xl px-4 py-3 flex flex-wrap gap-1 text-sm text-[#888]">
+        <div className="bg-[#1a1a1a] rounded-xl px-3 sm:px-4 py-3 flex flex-wrap gap-1 text-xs sm:text-sm text-[#888] text-left">
           {history.map((t, i) => (
             <span key={i} className="flex items-center gap-1">
               {i > 0 && <span className="text-[#555]">›</span>}
@@ -78,21 +78,16 @@ export function SoloScreen({
           ))}
         </div>
         <div className="flex flex-col gap-2.5">
-          <button className="w-full min-h-11 px-5 rounded-xl text-sm font-semibold bg-[#7c3aed] text-white hover:bg-[#6d28d9] cursor-pointer" onClick={onNewGame}>
-            Nouvelle partie
-          </button>
-          <button className="w-full min-h-11 px-5 rounded-xl text-sm font-semibold bg-[#242424] border border-[#2e2e2e] text-[#f0f0f0] hover:bg-[#1a1a1a] cursor-pointer" onClick={onQuit}>
-            Accueil
-          </button>
+          <button className={btnPrimary} onClick={onNewGame}>Nouvelle partie</button>
+          <button className={btnGhost} onClick={onQuit}>Accueil</button>
         </div>
       </div>
     </div>
   );
 
-  // playing
+  // Playing
   return (
     <div className="min-h-dvh w-full bg-[#0f0f0f] flex flex-col">
-      {/* Article */}
       <div className="flex-1 overflow-y-auto bg-white">
         <div className="article-container">
           {title && <h1 className="article-title">{title}</h1>}
@@ -103,7 +98,7 @@ export function SoloScreen({
           )}
           {loadError && (
             <div className="flex flex-col items-center gap-4 py-10 px-4 text-center">
-              <p className="text-[#888]">{loadError}</p>
+              <p className="text-[#888] text-sm">{loadError}</p>
               <button className="min-h-11 px-5 rounded-xl text-sm font-semibold bg-[#2563eb] text-white hover:bg-[#1d4ed8] cursor-pointer" onClick={onRetry}>
                 Réessayer
               </button>
@@ -116,27 +111,27 @@ export function SoloScreen({
       </div>
 
       {/* Bottom bar */}
-      <div className="fixed bottom-0 left-0 right-0 z-50 bg-[#0f0f0f]/97 backdrop-blur-sm border-t border-[#2e2e2e] flex items-center justify-between px-4 py-2.5 gap-3">
-        <div className="flex-1 min-w-0 flex flex-col gap-1">
-          <span className="text-[9px] font-bold tracking-widest text-[#888] uppercase">Vous devez trouver</span>
-          <span className="text-base font-black text-[#7c3aed] truncate">{puzzle?.target}</span>
+      <div className="fixed bottom-0 left-0 right-0 z-50 bg-[#0f0f0f]/97 backdrop-blur-sm border-t border-[#2e2e2e] flex items-center justify-between px-3 sm:px-4 py-2 gap-2 sm:gap-3">
+        <div className="flex-1 min-w-0 flex flex-col gap-0.5">
+          <span className="text-[8px] sm:text-[9px] font-bold tracking-widest text-[#888] uppercase">Trouver</span>
+          <span className="text-sm sm:text-base font-black text-[#7c3aed] truncate">{puzzle?.target}</span>
           <Breadcrumbs history={history} endRef={breadcrumbEndRef} />
         </div>
-        <div className="flex items-center gap-4 shrink-0">
-          <div className="flex flex-col items-center gap-0.5 min-w-11">
-            <span className="text-[9px] font-bold tracking-wider text-[#888] uppercase">Temps</span>
-            <span className="text-sm font-black tabular-nums">{elapsedDisplay}</span>
+        <div className="flex items-center gap-2 sm:gap-3 shrink-0">
+          <div className="flex flex-col items-center gap-0.5 min-w-10">
+            <span className="text-[8px] sm:text-[9px] font-bold tracking-wider text-[#888] uppercase">Temps</span>
+            <span className="text-xs sm:text-sm font-black tabular-nums">{elapsedDisplay}</span>
           </div>
-          <div className="flex flex-col items-center gap-0.5 min-w-11">
-            <span className="text-[9px] font-bold tracking-wider text-[#888] uppercase">Clics</span>
-            <span className="text-sm font-black tabular-nums">{clicks}</span>
+          <div className="flex flex-col items-center gap-0.5 min-w-10">
+            <span className="text-[8px] sm:text-[9px] font-bold tracking-wider text-[#888] uppercase">Clics</span>
+            <span className="text-xs sm:text-sm font-black tabular-nums">{clicks}</span>
           </div>
           {canGoBack && (
-            <button className="min-h-9 px-3 rounded-xl text-xs font-semibold bg-[#242424] border border-[#2e2e2e] text-[#f0f0f0] hover:bg-[#1a1a1a] disabled:opacity-50 cursor-pointer" onClick={onBack} disabled={loading}>
+            <button className="min-h-8 sm:min-h-9 px-2 sm:px-3 rounded-lg text-xs font-semibold bg-[#242424] border border-[#2e2e2e] text-[#f0f0f0] hover:bg-[#1a1a1a] disabled:opacity-50 cursor-pointer" onClick={onBack} disabled={loading}>
               ← +1
             </button>
           )}
-          <button className="min-h-9 px-3 rounded-xl text-xs font-semibold bg-[#242424] border border-[#2e2e2e] text-[#f0f0f0] hover:bg-[#1a1a1a] cursor-pointer" onClick={onQuit}>
+          <button className="min-h-8 sm:min-h-9 px-2 sm:px-3 rounded-lg text-xs font-semibold bg-[#242424] border border-[#2e2e2e] text-[#f0f0f0] hover:bg-[#1a1a1a] cursor-pointer" onClick={onQuit}>
             Quitter
           </button>
         </div>