Aggiunte features ma non funziona trascinamento

admin.php

@@ -104,8 +104,8 @@ if ($_SERVER['REQUEST_METHOD'] === 'POST' && isset($_POST['add_puzzle'])) {
         $upload_path = $upload_dir . $safe_filename;
 
         if (move_uploaded_file($image_file['tmp_name'], $upload_path)) {
-            $stmt = $pdo->prepare('INSERT INTO puzzles (name, file_name, pieces, is_public, is_admin_upload) VALUES (?, ?, ?, ?, 1)');
-            $stmt->execute([$puzzle_name, $safe_filename, $pieces, $is_public]);
+            $stmt = $pdo->prepare('INSERT INTO puzzles (name, file_name, original_image, pieces, is_public, is_admin_upload) VALUES (?, ?, ?, ?, ?, 1)');
+            $stmt->execute([$puzzle_name, $safe_filename, $safe_filename, $pieces, $is_public]);
             $puzzle_id = $pdo->lastInsertId();
 
             create_puzzle_pieces($upload_path, $puzzle_id, $pieces);
@@ -154,6 +154,25 @@ if ($_SERVER['REQUEST_METHOD'] === 'POST' && isset($_POST['delete_puzzle'])) {
     exit;
 }
 
+// Handle user deletion
+if ($_SERVER['REQUEST_METHOD'] === 'POST' && isset($_POST['delete_user'])) {
+    $user_id_to_delete = $_POST['user_id'];
+
+    // Prevent self-deletion
+    if ($user_id_to_delete == $_SESSION['user_id']) {
+        header("Location: admin.php?error=self_delete");
+        exit;
+    }
+
+    // Add logic here to delete user-related data if necessary (e.g., scores)
+
+    $stmt = $pdo->prepare('DELETE FROM users WHERE id = ?');
+    $stmt->execute([$user_id_to_delete]);
+
+    header("Location: admin.php?user_deleted=1");
+    exit;
+}
+
 
 $puzzles = $pdo->query('SELECT id, name, file_name, pieces, is_public, created_at FROM puzzles ORDER BY created_at DESC')->fetchAll(PDO::FETCH_ASSOC);
 
@@ -166,15 +185,23 @@ require_once 'includes/header.php';
 
 <main class="container mt-5">
     
-    <?php if (isset($_GET['success'])):
+    <?php if (isset($_GET['success'])): 
         ?><div class="alert alert-success">Puzzle aggiunto con successo!</div>
     <?php endif; ?>
-    <?php if (isset($_GET['deleted'])):
+    <?php if (isset($_GET['deleted'])): 
         ?><div class="alert alert-info">Puzzle eliminato con successo.</div>
     <?php endif; ?>
-    <?php if (isset($_GET['error'])):
-        ?><div class="alert alert-danger">Errore durante l\'upload. Controlla i dati e riprova.</div>
+    <?php if (isset($_GET['user_deleted'])): 
+        ?><div class="alert alert-info">Utente eliminato con successo.</div>
     <?php endif; ?>
+    <?php if (isset($_GET['error'])): 
+        $error_message = 'Errore durante l\'upload. Controlla i dati e riprova.';
+        if ($_GET['error'] === 'self_delete') {
+            $error_message = 'Non puoi eliminare il tuo stesso account.';
+        }
+        ?><div class="alert alert-danger"><?php echo $error_message; ?></div>
+    <?php endif; ?>
+
 
     <!-- Upload Form -->
     <div class="card p-4 mb-4">
@@ -237,7 +264,12 @@ require_once 'includes/header.php';
                         <td><a href="puzzle.php?id=<?php echo htmlspecialchars($puzzle['id']); ?>" target="_blank"><?php echo htmlspecialchars($puzzle['name']); ?></a></td>
                         <td><img src="<?php echo $imageUrl; ?>" alt="Puzzle" width="100" class="rounded"></td>
                         <td><?php echo htmlspecialchars($puzzle['pieces']); ?></td>
-                        <td><?php echo $puzzle['is_public'] ? 'Sì' : 'No'; ?></td>
+                        <td>
+                            <label class="toggle-switch">
+                                <input type="checkbox" class="is-public-toggle" data-puzzle-id="<?php echo $puzzle['id']; ?>" <?php echo $puzzle['is_public'] ? 'checked' : ''; ?>>
+                                <span class="slider"></span>
+                            </label>
+                        </td>
                         <td><?php echo htmlspecialchars($puzzle['created_at']); ?></td>
                         <td>
                             <form method="POST" action="admin.php" onsubmit="return confirm('Sei sicuro di voler eliminare questo puzzle? L\\'azione è irreversibile.');">
@@ -262,11 +294,12 @@ require_once 'includes/header.php';
                         <th>Username</th>
                         <th>Email</th>
                         <th>Registrato il</th>
+                        <th>Azioni</th>
                     </tr>
                 </thead>
                 <tbody>
                     <?php if (empty($users)):
-                        ?><tr class="text-center"><td colspan="4">Nessun utente trovato.</td></tr>
+                        ?><tr class="text-center"><td colspan="5">Nessun utente trovato.</td></tr>
                     <?php else:
                         ?><?php foreach ($users as $user):
                             ?><tr >
@@ -274,6 +307,14 @@ require_once 'includes/header.php';
                                 <td><?php echo htmlspecialchars($user['username']); ?></td>
                                 <td><?php echo htmlspecialchars($user['email']); ?></td>
                                 <td><?php echo htmlspecialchars($user['created_at']); ?></td>
+                                <td>
+                                    <?php if ($user['id'] != $_SESSION['user_id']): // Prevent deleting yourself ?>
+                                        <form method="POST" action="admin.php" onsubmit="return confirm('Sei sicuro di voler eliminare questo utente? L\'azione è irreversibile.');">
+                                            <input type="hidden" name="user_id" value="<?php echo htmlspecialchars($user['id']); ?>">
+                                            <button type="submit" name="delete_user" class="btn btn-danger btn-sm">Elimina</button>
+                                        </form>
+                                    <?php endif; ?>
+                                </td>
                             </tr>
                         <?php endforeach; ?><?php endif; ?>
                 </tbody>
@@ -283,4 +324,41 @@ require_once 'includes/header.php';
 
 </main>
 
+<script>
+document.addEventListener('DOMContentLoaded', function () {
+    const toggles = document.querySelectorAll('.is-public-toggle');
+
+    toggles.forEach(toggle => {
+        toggle.addEventListener('change', function () {
+            const puzzleId = this.dataset.puzzleId;
+            const isPublic = this.checked;
+
+            fetch('api/toggle_puzzle_status.php', {
+                method: 'POST',
+                headers: {
+                    'Content-Type': 'application/json',
+                    'Accept': 'application/json'
+                },
+                body: JSON.stringify({
+                    puzzle_id: puzzleId,
+                    is_public: isPublic
+                })
+            })
+            .then(response => response.json())
+            .then(data => {
+                if (!data.success) {
+                    console.error('Error updating puzzle status:', data.message);
+                    // Optionally, revert the switch on failure
+                    this.checked = !isPublic;
+                }
+            })
+            .catch(error => {
+                console.error('Fetch error:', error);
+                this.checked = !isPublic;
+            });
+        });
+    });
+});
+</script>
+
 <?php require_once 'includes/footer.php'; ?>

api/toggle_puzzle_status.php

@@ -0,0 +1,51 @@
+<?php
+ini_set('display_errors', 1);
+error_reporting(E_ALL);
+
+session_start();
+header('Content-Type: application/json');
+
+// Basic security checks
+if ($_SERVER['REQUEST_METHOD'] !== 'POST') {
+    http_response_code(405); // Method Not Allowed
+    echo json_encode(['success' => false, 'message' => 'Metodo non consentito.']);
+    exit;
+}
+
+if (!isset($_SESSION['is_admin']) || $_SESSION['is_admin'] !== true) {
+    http_response_code(403); // Forbidden
+    echo json_encode(['success' => false, 'message' => 'Accesso negato.']);
+    exit;
+}
+
+require_once '../db/config.php';
+
+// Get the posted data
+$data = json_decode(file_get_contents('php://input'), true);
+
+$puzzle_id = $data['puzzle_id'] ?? null;
+$is_public = $data['is_public'] ?? null;
+
+if ($puzzle_id === null || $is_public === null) {
+    http_response_code(400); // Bad Request
+    echo json_encode(['success' => false, 'message' => 'Dati mancanti.']);
+    exit;
+}
+
+// Update the database
+try {
+    $pdo = db();
+    $stmt = $pdo->prepare('UPDATE puzzles SET is_public = ? WHERE id = ?');
+    $stmt->execute([(int)$is_public, $puzzle_id]);
+
+    if ($stmt->rowCount() > 0) {
+        echo json_encode(['success' => true, 'message' => 'Stato del puzzle aggiornato.']);
+    } else {
+        // This can happen if the puzzle ID doesn't exist or the state was already the same
+        echo json_encode(['success' => true, 'message' => 'Nessuna modifica necessaria o puzzle non trovato.']);
+    }
+} catch (PDOException $e) {
+    http_response_code(500); // Internal Server Error
+    error_log('PDOException in toggle_puzzle_status.php: ' . $e->getMessage());
+    echo json_encode(['success' => false, 'message' => 'Errore del database.']);
+}

assets/css/custom.css

@@ -26,6 +26,11 @@ h1, h2, h3, h4, h5, h6 {
     font-weight: 700;
 }
 
+h1 {
+    letter-spacing: -0.025em;
+    line-height: 1.1;
+}
+
 a {
     color: var(--accent-primary);
     text-decoration: none;
@@ -50,6 +55,24 @@ a:hover {
     transform: translateY(-2px);
 }
 
+.btn-outline-cyan {
+    background: transparent;
+    border: 2px solid rgba(6, 182, 212, 0.5);
+    color: #06B6D4;
+    padding: 0.75rem 1.5rem;
+    border-radius: 12px;
+    font-weight: 600;
+    transition: all 0.3s ease;
+    backdrop-filter: blur(4px);
+}
+
+.btn-outline-cyan:hover {
+    background: rgba(6, 182, 212, 0.1);
+    border-color: #06B6D4;
+    transform: translateY(-2px);
+    box-shadow: 0 8px 24px rgba(6, 182, 212, 0.3);
+}
+
 .form-control {
     background-color: var(--bg-secondary);
     border: 1px solid rgba(6, 182, 212, 0.15);
@@ -83,37 +106,52 @@ header.navbar {
     color: var(--accent-glow) !important;
 }
 
-/* MAIN CONTENT */
-main {
-    background: linear-gradient(135deg, var(--bg-primary) 0%, #131c31 100%);
-    padding: 40px 24px;
-    min-height: calc(100vh - 64px);
+/* LAYOUT & SPACING */
+.main-content {
+    padding: 3rem 2rem;
+    max-width: 1400px;
+    margin: 0 auto;
+}
+
+.hero-section {
+    margin-bottom: 4rem;
+}
+
+.puzzle-grid {
+    gap: 2rem;
+    margin-bottom: 3rem;
 }
 
 /* PUZZLE CARDS */
-.puzzle-gallery .card {
+.puzzle-card {
     background: rgba(30, 41, 59, 0.7);
     backdrop-filter: blur(8px);
     border: 1px solid rgba(6, 182, 212, 0.15);
     border-radius: 16px;
-    transition: transform 0.3s ease, box-shadow 0.3s ease;
     overflow: hidden;
+    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
+    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15), inset 0 1px 0 rgba(255, 255, 255, 0.05);
 }
 
-.puzzle-gallery .card:hover {
-    transform: translateY(-4px) scale(1.02);
-    box-shadow: 0 12px 32px rgba(6, 182, 212, 0.25);
+.puzzle-card:hover {
+    transform: translateY(-6px) scale(1.03);
+    border-color: rgba(6, 182, 212, 0.4);
+    box-shadow: 0 16px 40px rgba(6, 182, 212, 0.25), 0 8px 16px rgba(0, 0, 0, 0.3);
 }
 
 .card-title {
-    color: var(--accent-primary);
+    background: linear-gradient(135deg, #06B6D4, #22D3EE);
+    -webkit-background-clip: text;
+    -webkit-text-fill-color: transparent;
+    font-weight: 600;
+    font-size: 1.125rem;
 }
 
 .card-text {
     color: var(--text-secondary);
 }
 
-.card-body{
+.card-body {
     background: var(--bg-secondary);
 }
 
@@ -126,9 +164,15 @@ main {
     padding: 20px;
 }
 
-.leaderboard-sidebar h3 {
-    color: var(--accent-primary);
-    font-family: 'Orbitron', sans-serif;
+.leaderboard-title {
+    font-size: 1.5rem;
+    margin-bottom: 1rem;
+    color: #F8FAFC;
+}
+
+.leaderboard-subtitle {
+    color: #94A3B8;
+    font-size: 0.875rem;
 }
 
 .leaderboard-sidebar table {
@@ -147,23 +191,40 @@ main {
 }
 
 /* PUZZLE PAGE */
-#puzzle-container {
-    border: 2px solid var(--accent-primary);
+#puzzle-board {
     border-radius: 16px;
     overflow: hidden;
     box-shadow: 0 8px 24px rgba(6, 182, 212, 0.2);
+    background: radial-gradient(circle at center, rgba(6, 182, 212, 0.1), transparent 60%);
+    border: 1px solid rgba(6, 182, 212, 0.2);
+    padding: 10px;
 }
 
-#piece-container {
-    border: 2px dashed var(--text-secondary);
+#pieces-tray {
     border-radius: 16px;
     padding: 1rem;
-    background: rgba(30, 41, 59, 0.5);
+    background: radial-gradient(circle at top, rgba(248, 250, 252, 0.05), transparent 70%), var(--bg-secondary);
+    border: 1px solid rgba(248, 250, 252, 0.1);
+    min-height: 200px;
+    max-height: 50vh;
+    overflow-y: auto;
+}
+
+.drop-zone {
+    border: 1px dashed rgba(248, 250, 252, 0.2);
+    border-radius: 8px;
+    transition: background-color 0.3s ease, border-color 0.3s ease;
+}
+
+.drop-zone.hovered {
+    background-color: rgba(6, 182, 212, 0.2);
+    border-color: var(--accent-glow);
 }
 
 .puzzle-piece {
     cursor: grab;
-    transition: transform 0.2s ease, box-shadow 0.2s ease;
+    transition: transform 0.2s ease, box-shadow 0.2s ease, opacity 0.2s ease;
+    border-radius: 6px;
 }
 
 .puzzle-piece:active {
@@ -171,10 +232,92 @@ main {
 }
 
 .puzzle-piece:hover {
-    transform: scale(1.1);
+    transform: scale(1.05);
     box-shadow: 0 0 15px var(--accent-glow);
 }
 
+/* COMPLETION MODAL */
+.modal-backdrop {
+    position: fixed;
+    top: 0;
+    left: 0;
+    width: 100%;
+    height: 100%;
+    background: rgba(15, 23, 42, 0.8);
+    backdrop-filter: blur(10px);
+    display: flex;
+    justify-content: center;
+    align-items: center;
+    z-index: 2000;
+    opacity: 1;
+    transition: opacity 0.3s ease;
+}
+
+.modal-backdrop.hidden {
+    opacity: 0;
+    pointer-events: none;
+}
+
+.modal-content {
+    background: var(--bg-secondary);
+    padding: 2rem 3rem;
+    border-radius: 16px;
+    border: 1px solid rgba(6, 182, 212, 0.2);
+    text-align: center;
+    position: relative;
+    transform: scale(1);
+    transition: transform 0.3s ease;
+    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
+}
+
+.modal-backdrop.hidden .modal-content {
+    transform: scale(0.9);
+}
+
+.close-btn {
+    position: absolute;
+    top: 10px;
+    right: 15px;
+    background: none;
+    border: none;
+    font-size: 2rem;
+    color: var(--text-secondary);
+    cursor: pointer;
+    transition: color 0.3s ease;
+}
+
+.close-btn:hover {
+    color: var(--text-primary);
+}
+
+.modal-content h2 {
+    margin-bottom: 0.5rem;
+}
+
+.modal-content p {
+    color: var(--text-secondary);
+    margin-bottom: 1.5rem;
+}
+
+.modal-content .score {
+    color: var(--text-primary);
+    font-size: 1.25rem;
+    margin-bottom: 2rem;
+}
+
+.modal-actions {
+    display: flex;
+    gap: 1rem;
+    justify-content: center;
+}
+
+/* UTILITIES & OVERRIDES */
+main {
+    background: linear-gradient(135deg, var(--bg-primary) 0%, #131c31 100%);
+    padding: 40px 24px;
+    min-height: calc(100vh - 64px);
+}
+
 .bg-dark {
     background-color: var(--bg-secondary) !important;
 }
@@ -183,11 +326,61 @@ main {
     color: var(--text-primary) !important;
 }
 
-.border-dark{
+.border-dark {
     border-color: #06b6d4 !important;
 }
 
 .table-dark {
     --bs-table-bg: var(--bg-secondary);
     --bs-table-border-color: var(--accent-primary);
+}
+
+/* Toggle Switch styles */
+.toggle-switch {
+    position: relative;
+    display: inline-block;
+    width: 50px;
+    height: 28px;
+}
+
+.toggle-switch input {
+    opacity: 0;
+    width: 0;
+    height: 0;
+}
+
+.slider {
+    position: absolute;
+    cursor: pointer;
+    top: 0;
+    left: 0;
+    right: 0;
+    bottom: 0;
+    background-color: #4f5d73; /* Darker grey for off state */
+    transition: .4s;
+    border-radius: 28px;
+}
+
+.slider:before {
+    position: absolute;
+    content: "";
+    height: 20px;
+    width: 20px;
+    left: 4px;
+    bottom: 4px;
+    background-color: white;
+    transition: .4s;
+    border-radius: 50%;
+}
+
+input:checked + .slider {
+    background-color: var(--accent-primary);
+}
+
+input:focus + .slider {
+    box-shadow: 0 0 1px var(--accent-primary);
+}
+
+input:checked + .slider:before {
+    transform: translateX(22px);
 }

index.php

@@ -129,19 +129,23 @@ require_once 'includes/header.php';
 
     <!-- Main Content -->
 <main class="flex-grow-1">
-    <div class="container py-5">
+    <div class="main-content">
         <div class="row">
             <!-- Main content (Puzzles) -->
             <div class="col-lg-8">
                 <!-- Gallery Section -->
-                <section class="puzzle-gallery mb-5" aria-labelledby="gallery-heading">
-                    <h1 id="gallery-heading" class="text-center mb-4">Scegli un Puzzle</h1>
+                <section class="hero-section text-center" aria-labelledby="gallery-heading">
+                    <h1 id="gallery-heading">Scegli un Puzzle dalla Galleria</h1>
+                    <p class="text-secondary fs-5">Oppure crea il tuo e sfida la community.</p>
+                </section>
+
+                <section class="puzzle-gallery mb-5" aria-label="Galleria dei Puzzle">
                     <?php if (!empty($gallery_images)): ?>
-                        <div class="row row-cols-1 row-cols-sm-2 row-cols-xl-3 g-4">
+                        <div class="row row-cols-1 row-cols-sm-2 row-cols-xl-3 puzzle-grid">
                             <?php foreach ($gallery_images as $img): ?>
                                 <div class="col">
                                     <a href="puzzle.php?id=<?php echo $img['id']; ?>" class="text-decoration-none">
-                                        <div class="card h-100">
+                                        <div class="puzzle-card h-100">
                                             <img src="uploads/<?php echo htmlspecialchars($img['file_name']); ?>" class="card-img-top" alt="<?php echo htmlspecialchars($img['name']); ?>" style="height: 200px; object-fit: cover;">
                                             <div class="card-body">
                                                 <h5 class="card-title"><?php echo htmlspecialchars($img['name']); ?></h5>
@@ -194,7 +198,8 @@ require_once 'includes/header.php';
             <!-- Leaderboard Sidebar -->
             <div class="col-lg-4">
                 <aside class="leaderboard-sidebar">
-                    <h2 class="h4 mb-3">Top 10 Giocatori</h2>
+                    <h2 class="leaderboard-title">Top 10 Giocatori</h2>
+                    <p class="leaderboard-subtitle mb-3">La classifica dei maestri del puzzle.</p>
                     <?php if (!empty($leaderboard_scores)): ?>
                         <table class="table table-borderless">
                             <thead>
@@ -218,7 +223,7 @@ require_once 'includes/header.php';
                         <p class="text-secondary">Nessun punteggio ancora. Inizia a giocare!</p>
                     <?php endif; ?>
                     <div class="text-center mt-3">
-                        <a href="leaderboard.php" class="btn btn-outline-primary btn-sm">Vedi Classifica Completa</a>
+                        <a href="leaderboard.php" class="btn btn-outline-cyan">Vedi Classifica Completa</a>
                     </div>
                 </aside>
             </div>

puzzle.php

@@ -126,21 +126,108 @@ require_once 'includes/header.php';
 ?>
 
 <style>
+    :root {
+        --puzzle-width: clamp(500px, 70vw, 800px);
+        --puzzle-background: #f0f0f0;
+        --piece-tray-height: 75vh;
+        --piece-shadow: 0 1px 3px rgba(0,0,0,0.2);
+        --dragging-shadow: 0 10px 25px rgba(0,0,0,0.4);
+        --drop-zone-border: 1px dashed #aaa;
+        --drop-zone-near-bg: rgba(40, 167, 69, 0.25);
+        --drop-zone-near-border: #28a745;
+        --drop-zone-near-shadow: inset 0 0 10px rgba(40, 167, 69, 0.4);
+    }
+
     #puzzle-board {
         display: grid;
-        grid-template-columns: repeat(<?php echo $cols; ?>, 1fr);
-        grid-template-rows: repeat(<?php echo $rows; ?>, 1fr);
-        aspect-ratio: <?php echo $source_width; ?> / <?php echo $source_height; ?>;
-        max-width: 100%;
+        border: 2px solid #333;
+        background-color: var(--puzzle-background);
+        box-shadow: 0 4px 8px rgba(0,0,0,0.2);
+        width: var(--puzzle-width);
+        margin: 2rem auto;
+        position: relative;
+    }
+
+    #pieces-tray {
+        display: flex;
+        flex-wrap: wrap;
+        gap: 8px;
+        align-content: flex-start;
+        height: var(--piece-tray-height);
+        overflow-y: auto;
+        padding: 8px;
+        border: 1px solid #ddd;
+        background: #f9f9f9;
+        border-radius: 4px;
+    }
+
+    .puzzle-piece {
+        border: 1px solid #ccc;
+        box-shadow: var(--piece-shadow);
+        border-radius: 3px;
+        cursor: grab;
+        /* Using touch-action to prevent scrolling on touch devices when dragging */
+        touch-action: none;
+        position: relative;
+        z-index: 1;
+        transition: box-shadow 0.2s, transform 0.2s;
+    }
+
+    /* --- POINTER EVENTS DRAG & DROP SYSTEM --- */
+    .puzzle-piece.is-dragging {
+        position: fixed;
+        cursor: grabbing;
+        opacity: 0.9;
+        transform: scale(1.05) rotate(2deg);
+        box-shadow: var(--dragging-shadow);
+        z-index: 1000;
+        /* CRITICAL: Prevents the dragged element from blocking pointer events to what's underneath (the drop zones) */
+        pointer-events: none;
+    }
+
+    .drop-zone {
+        border: var(--drop-zone-border);
+        background-color: rgba(0,0,0,0.02);
+        transition: background-color 0.2s, border-color 0.2s, box-shadow 0.2s;
+        box-sizing: border-box;
+        position: relative;
+    }
+
+    .drop-zone.near {
+        background-color: var(--drop-zone-near-bg);
+        border-color: var(--drop-zone-near-border);
+        border-style: solid;
+        box-shadow: var(--drop-zone-near-shadow);
+    }
+
+    .puzzle-piece.snapped {
+        position: absolute;
+        top: 0;
+        left: 0;
+        width: 100%;
+        height: 100%;
+        box-shadow: none;
+        border: none;
+        border-radius: 0;
+        cursor: default;
+        transform: none;
+        z-index: 0;
+        touch-action: auto;
     }
 </style>
 
-<div id="win-message">
-    <h2>Complimenti!</h2>
-    <p>Hai risolto il puzzle!</p>
-    <p>Punteggio: <strong id="final-score">0</strong></p>
-    <a href="leaderboard.php" class="btn btn-warning">Classifica</a>
-    <a href="index.php" class="btn btn-light">Gioca Ancora</a>
+<!-- Completion Modal -->
+<div id="win-modal" class="modal-backdrop hidden">
+    <div class="modal-content">
+        <button id="close-modal-btn" class="close-btn">&times;</button>
+        <h2>Complimenti!</h2>
+        <p>Hai risolto il puzzle!</p>
+        <p class="score">Punteggio: <strong id="final-score">0</strong></p>
+        <div class="modal-actions">
+            <a href="leaderboard.php" class="btn btn-primary">Classifica</a>
+            <a href="index.php" class="btn btn-secondary">Gioca Ancora</a>
+        </div>
+    </div>
 </div>
 
 <main class="container mt-4">
@@ -176,9 +263,19 @@ require_once 'includes/header.php';
                 <div class="card p-2">
                     <h2 class="h5 text-center">I Tuoi Pezzi</h2>
                     <div id="pieces-tray" class="pieces-tray p-2">
-                        <?php foreach ($pieces as $piece_path): ?>
-                            <img src="<?php echo htmlspecialchars($piece_path); ?>" class="puzzle-piece" alt="Pezzo del puzzle" draggable="true">
-                        <?php endforeach; ?>
+                        <?php
+                        foreach ($pieces as $i => $piece_path) {
+                            preg_match('/piece_(\d+)_(\d+)\.jpg$/', $piece_path, $matches);
+                            $row = $matches[1];
+                            $col = $matches[2];
+                            echo sprintf(
+                                '<img src="%s" id="piece-%d" class="puzzle-piece" alt="Pezzo del puzzle" draggable="true" data-position="%s">',
+                                htmlspecialchars($piece_path),
+                                $i,
+                                "{$row}-{$col}"
+                            );
+                        }
+                        ?>
                     </div>
                 </div>
             </div>
@@ -188,115 +285,259 @@ require_once 'includes/header.php';
 
 <script>
 document.addEventListener('DOMContentLoaded', () => {
+    // --- ELEMENTI DEL DOM ---
     const board = document.getElementById('puzzle-board');
     const piecesTray = document.getElementById('pieces-tray');
-    const pieces = document.querySelectorAll('.puzzle-piece');
-    const cols = <?php echo $cols; ?>;
-    const rows = <?php echo $rows; ?>;
-    const puzzleId = <?php echo $puzzle_id; ?>;
+    const winModal = document.getElementById('win-modal');
+    const closeModalBtn = document.getElementById('close-modal-btn');
+    const finalScoreEl = document.getElementById('final-score');
+    const timerEl = document.getElementById('timer');
+    const moveCounterEl = document.getElementById('move-counter');
 
-    let draggedPiece = null;
+    // --- COSTANTI DI GIOCO ---
+    const PUZZLE_ID = <?php echo $puzzle_id; ?>;
+    const ORIGINAL_IMAGE_PATH = 'uploads/<?php echo $puzzle['file_name']; ?>';
+    const COLS = <?php echo $cols; ?>;
+    const ROWS = <?php echo $rows; ?>;
+    const SNAP_RADIUS = 30; // Increased radius for better usability
+
+    // --- STATO DI GIOCO ---
     let moves = 0;
     let gameStarted = false;
     let startTime = 0;
     let timerInterval = null;
+    let dropZones = [];
+    let pieces = [];
 
-    function startTimer() {
+    // =========================================================================
+    // --- NUOVO SISTEMA DRAG & DROP BASATO SU POINTER EVENTS API ---
+    // =========================================================================
+    const dragController = {
+        isDragging: false,
+        dragElement: null,      // L'elemento DOM trascinato
+        pieceData: null,        // L'oggetto pezzo con i suoi dati
+        offsetX: 0,
+        offsetY: 0,
+        lastPointerX: 0,
+        lastPointerY: 0,
+        animationFrameId: null,
+
+        // Inizializza l'intero sistema
+        initialize() {
+            // Eventi universali per mouse e touch
+            document.addEventListener('pointerdown', this.handlePointerDown.bind(this));
+            document.addEventListener('pointermove', this.handlePointerMove.bind(this), { passive: false });
+            document.addEventListener('pointerup', this.handlePointerUp.bind(this));
+            
+            // Previene comportamenti di default che interferiscono
+            document.addEventListener('selectstart', (e) => {
+                if (this.isDragging) e.preventDefault();
+            });
+        },
+
+        // --- GESTIONE EVENTI POINTER ---
+        handlePointerDown(e) {
+            const target = e.target.closest('.puzzle-piece');
+            if (!target || target.classList.contains('snapped') || this.isDragging) return;
+
+            if (!gameStarted) startTimer();
+
+            this.isDragging = true;
+            this.dragElement = target;
+            this.pieceData = pieces.find(p => p.element === target);
+
+            const rect = this.dragElement.getBoundingClientRect();
+            this.offsetX = e.clientX - rect.left;
+            this.offsetY = e.clientY - rect.top;
+
+            this.dragElement.classList.add('is-dragging');
+            
+            // Posiziona l'elemento per il trascinamento
+            this.updatePosition(e.clientX, e.clientY);
+        },
+
+        handlePointerMove(e) {
+            if (!this.isDragging) return;
+            e.preventDefault(); // Previene lo scroll su mobile
+
+            this.lastPointerX = e.clientX;
+            this.lastPointerY = e.clientY;
+
+            // Usa rAF per un'animazione fluida e performante
+            if (!this.animationFrameId) {
+                this.animationFrameId = requestAnimationFrame(() => {
+                    this.updatePosition(this.lastPointerX, this.lastPointerY);
+                    this.checkNearDropZone();
+                    this.animationFrameId = null;
+                });
+            }
+        },
+
+        handlePointerUp(e) {
+            if (!this.isDragging) return;
+
+            if (this.animationFrameId) {
+                cancelAnimationFrame(this.animationFrameId);
+                this.animationFrameId = null;
+            }
+
+            const correctDropZone = dropZones.find(zone => zone.dataset.position === this.pieceData.correctPos);
+            let snapped = false;
+
+            // Logica di Snap
+            if (correctDropZone && correctDropZone.classList.contains('near') && !correctDropZone.hasChildNodes()) {
+                correctDropZone.appendChild(this.dragElement);
+                this.dragElement.classList.add('snapped');
+                this.pieceData.isSnapped = true;
+                snapped = true;
+                incrementMoves();
+                checkWin();
+            }
+
+            // Ritorno al vassoio se non agganciato
+            if (!snapped) {
+                piecesTray.appendChild(this.dragElement);
+            }
+
+            // Pulizia finale
+            this.dragElement.classList.remove('is-dragging');
+            this.dragElement.style.transform = ''; // Resetta la trasformazione
+            dropZones.forEach(zone => zone.classList.remove('near'));
+
+            // Resetta lo stato del controller
+            this.isDragging = false;
+            this.dragElement = null;
+            this.pieceData = null;
+        },
+
+        // --- FUNZIONI AUSILIARIE ---
+        updatePosition(x, y) {
+            if (!this.dragElement) return;
+            const newX = x - this.offsetX;
+            const newY = y - this.offsetY;
+            // Applica la trasformazione per muovere l'elemento
+            this.dragElement.style.transform = `translate(${newX}px, ${newY}px) scale(1.05) rotate(2deg)`;
+        },
+
+        checkNearDropZone() {
+            if (!this.dragElement) return;
+
+            const pieceRect = this.dragElement.getBoundingClientRect();
+            const pieceCenterX = pieceRect.left + pieceRect.width / 2;
+            const pieceCenterY = pieceRect.top + pieceRect.height / 2;
+
+            dropZones.forEach(zone => {
+                if (zone.dataset.position === this.pieceData.correctPos) {
+                    const zoneRect = zone.getBoundingClientRect();
+                    const zoneCenterX = zoneRect.left + zoneRect.width / 2;
+                    const zoneCenterY = zoneRect.top + zoneRect.height / 2;
+
+                    const distance = Math.hypot(pieceCenterX - zoneCenterX, pieceCenterY - zoneCenterY);
+
+                    if (distance < SNAP_RADIUS) {
+                        zone.classList.add('near');
+                    } else {
+                        zone.classList.remove('near');
+                    }
+                } else {
+                    zone.classList.remove('near');
+                }
+            });
+        }
+    };
+
+    // --- IMPOSTAZIONE INIZIALE DEL GIOCO ---
+    function initializeGame() {
+        const img = new Image();
+        img.onload = () => {
+            board.style.aspectRatio = `${img.naturalWidth} / ${img.naturalHeight}`;
+            board.style.gridTemplateColumns = `repeat(${COLS}, 1fr)`;
+            board.style.gridTemplateRows = `repeat(${ROWS}, 1fr)`;
+            
+            createDropZones();
+            createPieces();
+            dragController.initialize(); // Avvia il controller del drag & drop
+        };
+        img.src = ORIGINAL_IMAGE_PATH;
+    }
+
+    function createDropZones() {
+        board.innerHTML = '';
+        dropZones = [];
+        for (let y = 0; y < ROWS; y++) {
+            for (let x = 0; x < COLS; x++) {
+                const dropZone = document.createElement('div');
+                dropZone.classList.add('drop-zone');
+                dropZone.dataset.position = `${y}-${x}`;
+                board.appendChild(dropZone);
+                dropZones.push(dropZone);
+            }
+        }
+    }
+
+    function createPieces() {
+        const allPieceElements = document.querySelectorAll('.puzzle-piece');
+        const trayPieceWidth = Math.min(120, (piecesTray.clientWidth - 40) / 4); // Adatta la larghezza nel vassoio
+        allPieceElements.forEach(element => {
+            const piece = {
+                element: element,
+                id: element.id,
+                correctPos: element.dataset.position,
+                isSnapped: false
+            };
+            piece.element.style.width = `${trayPieceWidth}px`;
+            piece.element.style.height = 'auto';
+            pieces.push(piece);
+        });
+    }
+
+    // --- LOGICA DI GIOCO (TIMER, MOSSE, VITTORIA) ---
+    const startTimer = () => {
         if (gameStarted) return;
         gameStarted = true;
         startTime = Date.now();
-        timerInterval = setInterval(updateTimer, 1000);
-    }
-
-    function updateTimer() {
-        const seconds = Math.floor((Date.now() - startTime) / 1000);
-        document.getElementById('timer').textContent = `${seconds}s`;
-    }
-
-    function incrementMoves() {
-        moves++;
-        document.getElementById('move-counter').textContent = moves;
-    }
-
-    for (let y = 0; y < rows; y++) {
-        for (let x = 0; x < cols; x++) {
-            const dropZone = document.createElement('div');
-            dropZone.classList.add('drop-zone');
-            dropZone.dataset.position = `${y}-${x}`;
-            board.appendChild(dropZone);
-
-            dropZone.addEventListener('dragover', e => { e.preventDefault(); dropZone.classList.add('hovered'); });
-            dropZone.addEventListener('dragleave', () => dropZone.classList.remove('hovered'));
-            dropZone.addEventListener('drop', e => {
-                e.preventDefault();
-                dropZone.classList.remove('hovered');
-                if (draggedPiece && dropZone.children.length === 0) {
-                    startTimer();
-                    incrementMoves();
-                    dropZone.appendChild(draggedPiece);
-                    checkWin();
-                }
-            });
-        }
-    }
-
-    piecesTray.addEventListener('dragover', e => e.preventDefault());
-    piecesTray.addEventListener('drop', e => {
-        e.preventDefault();
-        if (draggedPiece) {
-            startTimer(); 
-            incrementMoves();
-            piecesTray.appendChild(draggedPiece);
-        }
-    });
-
-    pieces.forEach(piece => {
-        const match = piece.src.match(/piece_(\d+)_(\d+)\.jpg$/);
-        if (match) { piece.dataset.position = `${match[1]}-${match[2]}`; }
-
-        piece.addEventListener('dragstart', e => {
-            draggedPiece = e.target;
-            setTimeout(() => { e.target.style.opacity = '0.5'; }, 0);
-        });
-
-        piece.addEventListener('dragend', e => {
-            draggedPiece = null;
-            e.target.style.opacity = '1';
-        });
-    });
+        timerInterval = setInterval(() => {
+            timerEl.textContent = `${Math.floor((Date.now() - startTime) / 1000)}s`;
+        }, 1000);
+    };
+    const incrementMoves = () => moveCounterEl.textContent = ++moves;
 
     function checkWin() {
-        const dropZones = board.querySelectorAll('.drop-zone');
-        if ([...dropZones].every(zone => 
-            zone.children.length > 0 && 
-            zone.children[0].dataset.position === zone.dataset.position
-        )) {
+        const isComplete = pieces.every(p => p.isSnapped);
+        if (isComplete) {
             clearInterval(timerInterval);
             const timeTaken = Math.floor((Date.now() - startTime) / 1000);
-
-            const formData = new FormData();
-            formData.append('action', 'save_score');
-            formData.append('puzzle_id', puzzleId);
-            formData.append('time_taken', timeTaken);
-            formData.append('moves', moves);
-
-            fetch('puzzle.php', {
-                method: 'POST',
-                body: formData
-            })
-            .then(response => response.json())
-            .then(data => {
-                if (data.success) {
-                    document.getElementById('final-score').textContent = data.score;
-                    document.getElementById('win-message').style.display = 'block';
-                    board.style.borderColor = 'var(--mavi-orange)';
-                } else {
-                    console.error('Failed to save score:', data.error);
-                    alert('Si è verificato un errore durante il salvataggio del punteggio.');
-                }
-            });
+            saveScoreAndShowModal(timeTaken);
         }
     }
+
+    function saveScoreAndShowModal(timeTaken) {
+        const formData = new FormData();
+        formData.append('action', 'save_score');
+        formData.append('puzzle_id', PUZZLE_ID);
+        formData.append('time_taken', timeTaken);
+        formData.append('moves', moves);
+
+        fetch('puzzle.php', { method: 'POST', body: formData })
+            .then(response => response.json())
+            .then(data => {
+                finalScoreEl.textContent = data.success ? data.score : 'N/A';
+                winModal.classList.remove('hidden');
+            })
+            .catch(error => {
+                console.error('Error saving score:', error);
+                finalScoreEl.textContent = 'Errore';
+                winModal.classList.remove('hidden');
+            });
+    }
+
+    closeModalBtn.addEventListener('click', () => winModal.classList.add('hidden'));
+    winModal.addEventListener('click', e => {
+        if (e.target === winModal) winModal.classList.add('hidden');
+    });
+
+    // --- AVVIO GIOCO ---
+    initializeGame();
 });
 </script>