Fix mobile: compress card fan to fit any screen; kill horizontal overflow

- PlayerHand measures viewport and compresses the fan (responsive card size +
  dynamic overlap) so all 13 cards are visible and tappable on phones — no
  off-screen cards, no horizontal scroll; added tap feedback
- globals: html/body overflow-x hidden + overscroll-behavior none

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

src/app/globals.css

@@ -42,6 +42,8 @@
 html,
 body {
   height: 100%;
+  overflow-x: hidden;
+  overscroll-behavior: none;
 }
 
 body {

src/components/GameTable.tsx

@@ -354,12 +354,28 @@ function TrickArea({
 
 /* ----------------------------- Player hand ---------------------------- */
 
+function useViewportWidth() {
+  const [vw, setVw] = useState(typeof window !== "undefined" ? window.innerWidth : 390);
+  useEffect(() => {
+    const f = () => setVw(window.innerWidth);
+    f();
+    window.addEventListener("resize", f);
+    window.addEventListener("orientationchange", f);
+    return () => {
+      window.removeEventListener("resize", f);
+      window.removeEventListener("orientationchange", f);
+    };
+  }, []);
+  return vw;
+}
+
 function PlayerHand({ legalIds }: { legalIds: Set<string> }) {
   const hand = useGameStore((s) => s.game.players[0].hand);
   const phase = useGameStore((s) => s.game.phase);
   const turn = useGameStore((s) => s.game.turn);
   const playHuman = useGameStore((s) => s.playHuman);
   const { front } = useCardSkins();
+  const vw = useViewportWidth();
 
   const sorted = sortHand(hand);
   const myTurn = phase === "playing" && turn === 0;
@@ -367,45 +383,53 @@ function PlayerHand({ legalIds }: { legalIds: Set<string> }) {
   const choosing = phase === "choosing-trump";
   const n = sorted.length;
 
+  // Compress the fan so every card fits the screen width (no overflow/scroll).
+  const small = vw < 560;
+  const size = vw < 360 ? "sm" : vw < 560 ? "md" : "lg";
+  const cardW = size === "sm" ? 44 : size === "md" ? 60 : 74;
+  const avail = Math.min(vw - 12, 620);
+  const step = n > 1 ? Math.min(cardW * 0.94, Math.max(15, (avail - cardW) / (n - 1))) : 0;
+  const overlap = step - cardW; // negative inline-start margin
+
   return (
     <div
       className={cn(
-        "absolute bottom-0 inset-x-0 flex justify-center pb-3 pointer-events-none",
+        "absolute bottom-0 inset-x-0 flex justify-center pb-2 pointer-events-none",
         choosing ? "z-50" : "z-20"
       )}
     >
-      <div className="relative flex items-end justify-center pointer-events-auto">
+      <div className="relative flex items-end justify-center pointer-events-auto max-w-full">
         {sorted.map((card, i) => {
           const playable = myTurn && legalIds.has(card.id);
           const dimmed = myTurn && !playable;
           const mid = (n - 1) / 2;
-          const rot = (i - mid) * 3.2;
-          const lift = Math.abs(i - mid) * 4;
+          const rot = (i - mid) * (small ? 2 : 3.2);
+          const lift = Math.abs(i - mid) * (small ? 2 : 4);
           return (
             <motion.button
               key={card.id}
               layout
               initial={{ y: 120, opacity: 0 }}
               animate={{ y: lift, opacity: 1, rotate: rot }}
-              transition={{ type: "spring", stiffness: 280, damping: 28, delay: i * 0.015 }}
-              whileHover={playable ? { y: lift - 26, scale: 1.06, zIndex: 50 } : {}}
+              transition={{ type: "spring", stiffness: 280, damping: 28, delay: i * 0.012 }}
+              whileHover={playable ? { y: lift - 26, scale: 1.08, zIndex: 50 } : {}}
+              whileTap={playable ? { scale: 1.05 } : {}}
               onClick={() => playable && playHuman(card)}
               disabled={!playable}
               data-card={card.id}
               data-playable={playable ? "1" : "0"}
-              style={{ marginInlineStart: i === 0 ? 0 : -22 }}
+              style={{ marginInlineStart: i === 0 ? 0 : overlap }}
               className={cn(
-                "origin-bottom",
-                playable && "cursor-pointer",
-                !myTurn && "cursor-default"
+                "origin-bottom shrink-0",
+                playable ? "cursor-pointer relative z-30" : "cursor-default"
               )}
             >
               <PlayingCard
                 card={card}
-                size="lg"
+                size={size}
                 dimmed={dimmed}
                 front={front}
-                className={cn(playable && "ring-2 ring-gold-400/70")}
+                className={cn(playable && "ring-2 ring-gold-400/80")}
               />
             </motion.button>
           );