Extract NumberStepControl

frontend/src/App.css

@@ -108,7 +108,7 @@
         @apply py-4 border-b border-gray-400;
     }
     
-    .enumeration-indicator {
+    .circular-container {
         @apply flex-shrink-0 w-7 h-7 rounded-full bg-blue-300 text-white flex items-center justify-center shadow-sm;
     }
 

frontend/src/components/basics/NumberStepControl.tsx

@@ -0,0 +1,74 @@
+import {Minus, Plus} from "lucide-react";
+import {defaultIconSize} from "./SvgIcon.tsx";
+
+type NumberStepControlProps = {
+    /** Current numeric value */
+    value: number;
+    /** Callback when value changes */
+    onChange: (newValue: number) => void;
+    /** Optional: minimum allowed value */
+    min?: number;
+    /** Optional: maximum allowed value */
+    max?: number;
+    /** Optional: step increment (default = 1) */
+    step?: number;
+    /** Optional: additional Tailwind classes */
+    className?: string;
+};
+
+/**
+ * A compact number input with +/– buttons.
+ * Removes native browser spinners and supports min/max limits.
+ */
+export function NumberStepControl({
+                                      value,
+                                      onChange,
+                                      min = Number.NEGATIVE_INFINITY,
+                                      max = Number.POSITIVE_INFINITY,
+                                      step = 1,
+                                      className = "",
+                                  }: NumberStepControlProps) {
+    const handleDecrease = () => {
+        const newValue = Math.max(value - step, min);
+        onChange(newValue);
+    };
+
+    const handleIncrease = () => {
+        const newValue = Math.min(value + step, max);
+        onChange(newValue);
+    };
+
+    const handleInputChange = (e: React.ChangeEvent<HTMLInputElement>) => {
+        const num = Number(e.target.value);
+        if (!isNaN(num)) onChange(Math.min(Math.max(num, min), max));
+    };
+
+    return (
+        <div className={`flex items-center gap-2 ${className}`}>
+            <button
+                type="button"
+                onClick={handleDecrease}
+                className="circular-container primary-button-bg"
+            >
+                <Minus size={defaultIconSize}/>
+            </button>
+
+            <input
+                type="text"
+                inputMode="numeric"
+                pattern="[0-9]*"
+                value={value}
+                onChange={handleInputChange}
+                className="w-16 text-center input-field"
+            />
+
+            <button
+                type="button"
+                onClick={handleIncrease}
+                className="circular-container primary-button-bg"
+            >
+                <Plus size={defaultIconSize}/>
+            </button>
+        </div>
+    );
+}

frontend/src/components/recipes/InstructionStepDesktopListItem.tsx

@@ -37,7 +37,7 @@ export function InstructionStepDesktopListItem({
             <div
                 {...attributes}
                 {...listeners}
-        className="enumeration-indicator cursor-grab"
+                className="circular-container cursor-grab"
                 title="Ziehen, um neu zu ordnen"
             >
                 {index + 1}

frontend/src/components/recipes/RecipeDetailPage.tsx

@@ -5,6 +5,7 @@ import {fetchRecipe} from "../../api/points/RecipePoint"
 import {getRecipeEditUrl, getRecipeListUrl} from "../../routes"
 import ButtonLink from "../basics/ButtonLink"
 import {mapRecipeDtoToModel} from "../../mappers/RecipeMapper"
+import {NumberStepControl} from "../basics/NumberStepControl.tsx";
 
 
 /**
@@ -99,36 +100,12 @@ export default function RecipeDetailPage() {
                             Für {recipeWorkingCopy.servings.amount} {recipeWorkingCopy.servings.unit}
                         </p>
 
-                        <div className="flex items-center justify-end sm:justify-center gap-2">
-                            {/* Minus button */}
-                            <button
-                                type="button"
-                                onClick={() => recalculateIngredients(Math.max(1, recipeWorkingCopy.servings.amount - 1))}
-                                className="enumeration-indicator primary-button-bg"
-                            >
-                                –
-                            </button>
-
-                            {/* Number input (no spin buttons) */}
-                            <input
-                                type="number"
-                                inputMode="numeric"
-                                pattern="[0-9]*"
-                                className="w-16 text-center input-field"
+                        <NumberStepControl
                             value={recipeWorkingCopy.servings.amount}
-                                onChange={e => recalculateIngredients(Number(e.target.value))}
+                            onChange={recalculateIngredients}
                             min={1}
+                            className="justify-end sm:justify-center"
                         />
-
-                            {/* Plus button */}
-                            <button
-                                type="button"
-                                onClick={() => recalculateIngredients(recipeWorkingCopy.servings.amount + 1)}
-                                className="enumeration-indicator primary-button-bg"
-                            >
-                                +
-                            </button>
-                        </div>
                     </div>
 
                     {/* Ingredients */}
@@ -156,7 +133,7 @@ export default function RecipeDetailPage() {
                         {recipe.instructionStepList.map((step, j) => (
                             <li key={j} className="flex items-start gap-4">
                                 {/* Step number circle */}
-                                <div className="enumeration-indicator">
+                                <div className="circular-container">
                                     {j + 1}
                                 </div>