Fix graph spacing and edge labels

Adjust graph to full width and reduce edge constraints to improve spacing and clarity.

src/components/DogsBunnyPuzzle.tsx

@@ -78,25 +78,27 @@ const DogsBunnyPuzzle: React.FC<DogsBunnyPuzzleProps> = ({
     // Connect all locations with conditional edges
     for (let i = 0; i < locations.length; i++) {
       for (let j = i + 1; j < locations.length; j++) {
+        const FREE_RATIO = 0.33;
+        let conditions: string[] = [];
+        if (rng() >= FREE_RATIO) {
           const numConditions = diff === 'easy' ? 1 : diff === 'medium' ? 2 : 3;
-        const conditions: string[] = [];
-        
           for (let k = 0; k < numConditions; k++) {
             const conditionType = locationTypes[Math.floor(rng() * locationTypes.length)];
             const prefix = conditionPrefixes[Math.floor(rng() * conditionPrefixes.length)];
             conditions.push(`${prefix} ${conditionType.toUpperCase()}`);
           }
+        }
         
         edges.push({
           from: locations[i].id,
           to: locations[j].id,
-          conditions: conditions
+          conditions
         });
         
         edges.push({
           from: locations[j].id,
           to: locations[i].id,
-          conditions: conditions
+          conditions
         });
       }
     }
@@ -339,7 +341,7 @@ const DogsBunnyPuzzle: React.FC<DogsBunnyPuzzleProps> = ({
         </CardHeader>
         
         <CardContent>
-          <div className="flex flex-col lg:flex-row gap-6">
+          <div className="flex flex-col gap-6">
             {/* Puzzle Area */}
             <div className="flex-1">
               <div 
@@ -473,7 +475,7 @@ const DogsBunnyPuzzle: React.FC<DogsBunnyPuzzleProps> = ({
             </div>
             
             {/* Instructions & Controls */}
-            <div className="w-full lg:w-80 space-y-4">
+            <div className="w-full space-y-4">
               <div className="space-y-2">
                 <h3 className="font-semibold">How to Play:</h3>
                 <ul className="text-sm text-muted-foreground space-y-1">