feat: Pro Chess Player Overhaul - complete rewrite with 23 pro features

- Pro board: drag/drop, pre-moves, arrows, highlights, keyboard nav, coords
- Pro timer: Fischer/Bronstein/delay, tenths/hundredths, low-time warnings
- Pro move stack: clickable, scrollable, opening detection (100+ openings)
- Post-game analysis: eval bar, eval graph, move classification, accuracy %
- Puzzle trainer: daily puzzles, streak mode, rush mode, themed puzzles
- Sound system: move/capture/check/castle/game-end via Web Audio API
- Eval bar: real-time position evaluation display
- PGN export, FEN copy, analyze button
- 50 seeded puzzles in database with ELO rating system
- New icons: eye, download, copy, chart, puzzle, brain
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

api/analysis.php

+<?php
+require_once __DIR__ . '/../config/database.php';
+
+header('Content-Type: application/json');
+
+$token = get_auth_token();
+
+if (!$token) {
+    http_response_code(401);
+    echo json_encode(['error' => 'unauthorized']);
+    exit;
+}
+
+$method = $_SERVER['REQUEST_METHOD'];
+
+if ($method === 'GET') {
+    $gameId = $_GET['id'] ?? '';
+    if (!$gameId) {
+        http_response_code(400);
+        echo json_encode(['error' => 'missing game id']);
+        exit;
+    }
+
+    $res = supabase_rest('GET', "games?id=eq.{$gameId}&select=id,bot_id,player_color,pgn,fen,final_fen,result,reason,time_control,increment,rated,status,started_at,ended_at,game_state,clock_white,clock_black", [], $token);
+
+    if ($res['status'] >= 200 && $res['status'] < 300 && !empty($res['data'])) {
+        $game = $res['data'][0];
+
+        // If analysis already cached in game_state, return it
+        $gameState = $game['game_state'] ?? null;
+        if (is_string($gameState)) {
+            $gameState = json_decode($gameState, true);
+        }
+        $hasAnalysis = isset($gameState['analysis']) && !empty($gameState['analysis']);
+
+        echo json_encode([
+            'game' => $game,
+            'has_analysis' => $hasAnalysis,
+            'analysis' => $hasAnalysis ? $gameState['analysis'] : null
+        ]);
+    } else {
+        http_response_code(404);
+        echo json_encode(['error' => 'game not found']);
+    }
+    exit;
+}
+
+// POST requests
+$input = json_decode(file_get_contents('php://input'), true);
+$action = $input['action'] ?? '';
+
+switch ($action) {
+    case 'analyze':
+        $gameId = $input['game_id'] ?? '';
+        $positions = $input['positions'] ?? []; // Array of FEN strings
+
+        if (!$gameId || empty($positions)) {
+            http_response_code(400);
+            echo json_encode(['error' => 'missing game_id or positions']);
+            exit;
+        }
+
+        $evaluations = [];
+        $apiUrl = STOCKFISH_API . '/api/chess/move';
+
+        foreach ($positions as $index => $fen) {
+            $payload = json_encode([
+                'bot_id' => 'grandmaster',
+                'fen' => $fen,
+                'wtime' => 120000,
+                'btime' => 120000
+            ]);
+
+            $ch = curl_init($apiUrl);
+            curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
+            curl_setopt($ch, CURLOPT_POST, true);
+            curl_setopt($ch, CURLOPT_POSTFIELDS, $payload);
+            curl_setopt($ch, CURLOPT_HTTPHEADER, [
+                'Content-Type: application/json',
+                'X-API-Key: ' . STOCKFISH_MGMT_KEY
+            ]);
+            curl_setopt($ch, CURLOPT_TIMEOUT, 30);
+
+            $response = curl_exec($ch);
+            $httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
+            curl_close($ch);
+
+            if ($httpCode === 200) {
+                $data = json_decode($response, true);
+                $evaluations[] = [
+                    'move_index' => $index,
+                    'fen' => $fen,
+                    'best_move' => $data['best_move'] ?? null,
+                    'evaluation' => $data['evaluation'] ?? 0,
+                    'depth' => $data['depth'] ?? 20
+                ];
+            } else {
+                $evaluations[] = [
+                    'move_index' => $index,
+                    'fen' => $fen,
+                    'best_move' => null,
+                    'evaluation' => 0,
+                    'depth' => 0,
+                    'error' => true
+                ];
+            }
+
+            // Small delay to avoid overwhelming the API
+            if ($index < count($positions) - 1) {
+                usleep(100000); // 100ms
+            }
+        }
+
+        // Cache analysis in game_state
+        $analysisData = [
+            'evaluations' => $evaluations,
+            'analyzed_at' => date('c')
+        ];
+
+        // Get existing game_state
+        $gameRes = supabase_rest('GET', "games?id=eq.{$gameId}&select=game_state", [], $token);
+        $existingState = [];
+        if (!empty($gameRes['data'][0]['game_state'])) {
+            $existingState = $gameRes['data'][0]['game_state'];
+            if (is_string($existingState)) {
+                $existingState = json_decode($existingState, true) ?? [];
+            }
+        }
+        $existingState['analysis'] = $analysisData;
+
+        supabase_rest('PATCH', "games?id=eq.{$gameId}", [
+            'game_state' => json_encode($existingState)
+        ], $token);
+
+        echo json_encode([
+            'ok' => true,
+            'analysis' => $analysisData
+        ]);
+        break;
+
+    case 'analyze_single':
+        // Analyze a single position (used for real-time partial analysis)
+        $fen = $input['fen'] ?? '';
+        if (!$fen) {
+            http_response_code(400);
+            echo json_encode(['error' => 'missing fen']);
+            exit;
+        }
+
+        $apiUrl = STOCKFISH_API . '/api/chess/move';
+        $payload = json_encode([
+            'bot_id' => 'grandmaster',
+            'fen' => $fen,
+            'wtime' => 120000,
+            'btime' => 120000
+        ]);
+
+        $ch = curl_init($apiUrl);
+        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
+        curl_setopt($ch, CURLOPT_POST, true);
+        curl_setopt($ch, CURLOPT_POSTFIELDS, $payload);
+        curl_setopt($ch, CURLOPT_HTTPHEADER, [
+            'Content-Type: application/json',
+            'X-API-Key: ' . STOCKFISH_MGMT_KEY
+        ]);
+        curl_setopt($ch, CURLOPT_TIMEOUT, 30);
+
+        $response = curl_exec($ch);
+        $httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
+        curl_close($ch);
+
+        if ($httpCode === 200) {
+            $data = json_decode($response, true);
+            echo json_encode([
+                'best_move' => $data['best_move'] ?? null,
+                'evaluation' => $data['evaluation'] ?? 0,
+                'depth' => $data['depth'] ?? 20
+            ]);
+        } else {
+            http_response_code(502);
+            echo json_encode(['error' => 'engine unavailable']);
+        }
+        break;
+
+    default:
+        http_response_code(400);
+        echo json_encode(['error' => 'invalid action']);
+}

api/puzzles.php

+<?php
+require_once __DIR__ . '/../config/database.php';
+
+header('Content-Type: application/json');
+
+$token = get_auth_token();
+
+if (!$token) {
+    http_response_code(401);
+    echo json_encode(['error' => 'unauthorized']);
+    exit;
+}
+
+$method = $_SERVER['REQUEST_METHOD'];
+
+if ($method === 'GET') {
+    $action = $_GET['action'] ?? '';
+
+    if ($action === 'daily') {
+        // Get today's 3 daily puzzles (seeded by date)
+        $today = date('Y-m-d');
+        $seed = crc32($today);
+
+        // Fetch puzzles and use the seed to deterministically select 3
+        $offset = abs($seed) % 100;
+        $res = supabase_rest('GET', "puzzles?select=id,fen,moves,rating,themes,title&order=id.asc&offset={$offset}&limit=3", [], $token);
+
+        if ($res['status'] >= 200 && $res['status'] < 300) {
+            echo json_encode([
+                'puzzles' => $res['data'] ?? [],
+                'date' => $today
+            ]);
+        } else {
+            echo json_encode(['puzzles' => [], 'date' => $today]);
+        }
+
+    } elseif ($action === 'streak') {
+        // Get player's current streak
+        $profileRes = supabase_rest('GET', 'profiles?select=puzzle_streak,best_puzzle_streak,puzzle_rating', [], $token);
+        if (!empty($profileRes['data'])) {
+            echo json_encode($profileRes['data'][0]);
+        } else {
+            echo json_encode(['puzzle_streak' => 0, 'best_puzzle_streak' => 0, 'puzzle_rating' => 1200]);
+        }
+
+    } else {
+        // List puzzles with optional filters
+        $theme = $_GET['theme'] ?? '';
+        $rating = intval($_GET['rating'] ?? 1200);
+        $limit = min(intval($_GET['limit'] ?? 20), 50);
+
+        $query = 'puzzles?select=id,fen,moves,rating,themes,title';
+
+        if ($theme) {
+            $query .= "&themes=cs.{{$theme}}";
+        }
+
+        // Get puzzles close to player's rating (within 200 range)
+        $ratingMin = $rating - 200;
+        $ratingMax = $rating + 200;
+        $query .= "&rating=gte.{$ratingMin}&rating=lte.{$ratingMax}";
+        $query .= "&order=rating.asc&limit={$limit}";
+
+        $res = supabase_rest('GET', $query, [], $token);
+
+        if ($res['status'] >= 200 && $res['status'] < 300) {
+            echo json_encode(['puzzles' => $res['data'] ?? []]);
+        } else {
+            echo json_encode(['puzzles' => []]);
+        }
+    }
+    exit;
+}
+
+// POST requests
+$input = json_decode(file_get_contents('php://input'), true);
+$action = $input['action'] ?? '';
+
+switch ($action) {
+    case 'attempt':
+        $puzzleId = $input['puzzle_id'] ?? '';
+        $solved = $input['solved'] ?? false;
+        $timeMs = intval($input['time_ms'] ?? 0);
+
+        if (!$puzzleId) {
+            http_response_code(400);
+            echo json_encode(['error' => 'missing puzzle_id']);
+            exit;
+        }
+
+        // Get player's current puzzle_rating
+        $profileRes = supabase_rest('GET', 'profiles?select=id,puzzle_rating,puzzle_streak,best_puzzle_streak', [], $token);
+        $profile = $profileRes['data'][0] ?? null;
+
+        if (!$profile) {
+            http_response_code(404);
+            echo json_encode(['error' => 'profile not found']);
+            exit;
+        }
+
+        $playerRating = $profile['puzzle_rating'] ?? 1200;
+        $currentStreak = $profile['puzzle_streak'] ?? 0;
+        $bestStreak = $profile['best_puzzle_streak'] ?? 0;
+
+        // Get puzzle rating
+        $puzzleRes = supabase_rest('GET', "puzzles?id=eq.{$puzzleId}&select=rating", [], $token);
+        $puzzleRating = $puzzleRes['data'][0]['rating'] ?? 1200;
+
+        // ELO calculation (K-factor = 32 for puzzles)
+        $K = 32;
+        $expected = 1 / (1 + pow(10, ($puzzleRating - $playerRating) / 400));
+        $score = $solved ? 1 : 0;
+        $newRating = round($playerRating + $K * ($score - $expected));
+
+        // Update streak
+        $newStreak = $solved ? $currentStreak + 1 : 0;
+        $newBestStreak = max($bestStreak, $newStreak);
+
+        // Record attempt
+        $attemptData = [
+            'puzzle_id' => $puzzleId,
+            'solved' => $solved,
+            'time_ms' => $timeMs,
+            'rating_before' => $playerRating,
+            'rating_after' => $newRating
+        ];
+        supabase_rest('POST', 'puzzle_attempts', $attemptData, $token);
+
+        // Update profile
+        supabase_rest('PATCH', "profiles?id=eq.{$profile['id']}", [
+            'puzzle_rating' => $newRating,
+            'puzzle_streak' => $newStreak,
+            'best_puzzle_streak' => $newBestStreak
+        ], $token);
+
+        // Award coins for solving
+        $coinsAwarded = 0;
+        if ($solved) {
+            $coinsAwarded = 10;
+            if ($newStreak >= 5) $coinsAwarded = 20;
+            if ($newStreak >= 10) $coinsAwarded = 30;
+            supabase_rest('POST', 'rpc/add_coins', ['amount' => $coinsAwarded], $token);
+        }
+
+        echo json_encode([
+            'ok' => true,
+            'rating_before' => $playerRating,
+            'rating_after' => $newRating,
+            'rating_change' => $newRating - $playerRating,
+            'streak' => $newStreak,
+            'best_streak' => $newBestStreak,
+            'coins_awarded' => $coinsAwarded
+        ]);
+        break;
+
+    case 'streak':
+        // Reset/get streak info
+        $profileRes = supabase_rest('GET', 'profiles?select=puzzle_streak,best_puzzle_streak,puzzle_rating', [], $token);
+        if (!empty($profileRes['data'])) {
+            echo json_encode($profileRes['data'][0]);
+        } else {
+            echo json_encode(['puzzle_streak' => 0, 'best_puzzle_streak' => 0, 'puzzle_rating' => 1200]);
+        }
+        break;
+
+    default:
+        http_response_code(400);
+        echo json_encode(['error' => 'invalid action']);
+}

index.php

@@ -29,6 +29,10 @@ if ($route === '' || $route === 'home') {
     require 'pages/shop.php';
 } elseif ($route === 'achievements') {
     require 'pages/achievements.php';
+} elseif ($route === 'analysis') {
+    require 'pages/analysis.php';
+} elseif ($route === 'puzzles') {
+    require 'pages/puzzles.php';
 } elseif ($route === 'notifications') {
     require 'pages/notifications.php';
 } elseif ($route === 'settings') {

pages/game.php

@@ -4,71 +4,185 @@ $extraCss = '/public/css/chessboard.css';
 ?>
 <?php require __DIR__ . '/../includes/header.php'; ?>
 
-<div class="game-container" id="game-container">
+<div class="game-layout" id="game-container">
+
+  <!-- Board Column (eval bar + opponent/player info + board) -->
+  <div class="game-board-column">
+
+    <!-- Opponent info + clock -->
+    <div class="game-header">
+      <div class="game-player">
+        <div class="avatar avatar-sm" id="opponent-avatar">
+          <svg class="icon"><use href="/public/icons/sprite.svg#icon-bot"></use></svg>
+        </div>
+        <div>
+          <div class="game-player-name" id="opponent-name">Bot</div>
+          <div class="game-player-rating" id="opponent-rating">1200</div>
+        </div>
+      </div>
+      <div class="game-clock" id="clock-top">10:00</div>
+    </div>
 
-  <!-- Opponent info -->
-  <div class="game-header">
-    <div class="game-player">
-      <div class="avatar avatar-sm" id="opponent-avatar">
-        <svg class="icon"><use href="/public/icons/sprite.svg#icon-bot"></use></svg>
+    <!-- Board + Eval Bar -->
+    <div class="game-board-section">
+      <!-- Eval Bar -->
+      <div class="eval-bar" id="eval-bar">
+        <span class="eval-bar-label eval-bar-label-top" id="eval-label-top"></span>
+        <div class="eval-bar-fill" id="eval-bar-fill" style="height:50%;"></div>
+        <span class="eval-bar-label eval-bar-label-bottom" id="eval-label-bottom"></span>
       </div>
-      <div>
-        <div class="game-player-name" id="opponent-name">Bot</div>
-        <div class="game-player-rating" id="opponent-rating">1200</div>
+
+      <!-- Board -->
+      <div class="board-wrapper">
+        <div class="board" id="board"></div>
+        <!-- Coordinate labels -->
+        <div class="board-coords-file" id="coords-file">
+          <span>a</span><span>b</span><span>c</span><span>d</span>
+          <span>e</span><span>f</span><span>g</span><span>h</span>
+        </div>
+        <div class="board-coords-rank" id="coords-rank">
+          <span>8</span><span>7</span><span>6</span><span>5</span>
+          <span>4</span><span>3</span><span>2</span><span>1</span>
+        </div>
+        <!-- Arrow overlay -->
+        <div class="board-arrows" id="board-arrows">
+          <svg viewBox="0 0 800 800" preserveAspectRatio="xMidYMid meet"></svg>
+        </div>
       </div>
     </div>
-    <div class="game-clock" id="clock-top">10:00</div>
-  </div>
 
-  <!-- Board -->
-  <div class="board-wrapper">
-    <div class="board" id="board"></div>
-  </div>
+    <!-- Thinking indicator -->
+    <div class="thinking" id="thinking-indicator" style="display:none;">
+      <div class="thinking-dots">
+        <span></span><span></span><span></span>
+      </div>
+      <span>يفكر...</span>
+    </div>
 
-  <!-- Thinking indicator -->
-  <div class="thinking" id="thinking-indicator" style="display:none;">
-    <div class="thinking-dots">
-      <span></span><span></span><span></span>
+    <!-- Pre-move indicator -->
+    <div class="premove-indicator" id="premove-indicator" style="display:none;">
+      نقلة مسبقة محجوزة
+    </div>
+
+    <!-- Player info + clock -->
+    <div class="game-header">
+      <div class="game-player">
+        <div class="avatar avatar-sm">
+          <svg class="icon"><use href="/public/icons/sprite.svg#icon-profile"></use></svg>
+        </div>
+        <div>
+          <div class="game-player-name" id="player-name">انت</div>
+          <div class="game-player-rating" id="player-rating">1200</div>
+        </div>
+      </div>
+      <div class="game-clock" id="clock-bottom">10:00</div>
     </div>
-    <span>يفكر...</span>
+
   </div>
 
-  <!-- Player info -->
-  <div class="game-header">
-    <div class="game-player">
-      <div class="avatar avatar-sm">
-        <svg class="icon"><use href="/public/icons/sprite.svg#icon-profile"></use></svg>
+  <!-- Side Panel (Desktop) -->
+  <div class="game-side-panel" id="side-panel">
+    <div class="analysis-panel">
+      <!-- Opening name -->
+      <div class="opening-display" id="opening-display" style="display:none;">
+        <span class="opening-eco" id="opening-eco"></span>
+        <span class="opening-name" id="opening-name"></span>
       </div>
-      <div>
-        <div class="game-player-name" id="player-name">انت</div>
-        <div class="game-player-rating" id="player-rating">1200</div>
+
+      <!-- Move list -->
+      <div class="move-list-pro" id="move-list"></div>
+
+      <!-- Game status -->
+      <div class="panel-status" id="game-status">دورك</div>
+
+      <!-- Controls -->
+      <div class="panel-controls" id="game-controls">
+        <button class="btn btn-ghost btn-sm" onclick="Game.resign()" id="btn-resign">
+          <svg class="icon"><use href="/public/icons/sprite.svg#icon-flag"></use></svg>
+          استسلام
+        </button>
+        <button class="btn btn-ghost btn-sm" onclick="Board.flip()">
+          <svg class="icon"><use href="/public/icons/sprite.svg#icon-arrows"></use></svg>
+          اقلب
+        </button>
+        <button class="btn btn-ghost btn-sm" onclick="Game.toggleArrows()" id="btn-arrows">
+          <svg class="icon"><use href="/public/icons/sprite.svg#icon-eye"></use></svg>
+          اسهم
+        </button>
+      </div>
+
+      <!-- Post-game controls (hidden initially) -->
+      <div class="postgame-controls" id="postgame-controls" style="display:none;">
+        <button class="btn btn-ghost btn-sm" onclick="Game.exportPGN()">
+          <svg class="icon"><use href="/public/icons/sprite.svg#icon-download"></use></svg>
+          PGN
+        </button>
+        <button class="btn btn-ghost btn-sm" onclick="Game.copyFEN()">
+          <svg class="icon"><use href="/public/icons/sprite.svg#icon-copy"></use></svg>
+          FEN
+        </button>
+        <button class="btn btn-ghost btn-sm" onclick="Game.analyze()">
+          <svg class="icon"><use href="/public/icons/sprite.svg#icon-chart"></use></svg>
+          تحليل
+        </button>
       </div>
     </div>
-    <div class="game-clock" id="clock-bottom">10:00</div>
   </div>
 
-  <!-- Status -->
-  <div class="text-center text-sm text-muted" id="game-status">دورك</div>
-
-  <!-- Move list -->
-  <div class="move-list" id="move-list"></div>
-
-  <!-- Controls -->
-  <div class="game-controls">
-    <button class="btn btn-ghost btn-sm" onclick="Game.resign()">
-      <svg class="icon"><use href="/public/icons/sprite.svg#icon-flag"></use></svg>
-      استسلام
-    </button>
-    <button class="btn btn-ghost btn-sm" onclick="Board.flip()">
-      <svg class="icon"><use href="/public/icons/sprite.svg#icon-arrows"></use></svg>
-      اقلب
-    </button>
+  <!-- Mobile Panel (shown only on mobile) -->
+  <div class="game-mobile-panel" id="mobile-panel">
+    <div class="analysis-panel">
+      <!-- Opening name (mobile) -->
+      <div class="opening-display" id="opening-display-mobile" style="display:none;">
+        <span class="opening-eco" id="opening-eco-mobile"></span>
+        <span class="opening-name" id="opening-name-mobile"></span>
+      </div>
+
+      <!-- Move list (mobile) -->
+      <div class="move-list-pro" id="move-list-mobile"></div>
+
+      <!-- Game status (mobile) -->
+      <div class="panel-status" id="game-status-mobile">دورك</div>
+
+      <!-- Controls (mobile) -->
+      <div class="panel-controls" id="game-controls-mobile">
+        <button class="btn btn-ghost btn-sm" onclick="Game.resign()">
+          <svg class="icon"><use href="/public/icons/sprite.svg#icon-flag"></use></svg>
+          استسلام
+        </button>
+        <button class="btn btn-ghost btn-sm" onclick="Board.flip()">
+          <svg class="icon"><use href="/public/icons/sprite.svg#icon-arrows"></use></svg>
+          اقلب
+        </button>
+        <button class="btn btn-ghost btn-sm" onclick="Game.toggleArrows()">
+          <svg class="icon"><use href="/public/icons/sprite.svg#icon-eye"></use></svg>
+          اسهم
+        </button>
+      </div>
+
+      <!-- Post-game controls (mobile, hidden initially) -->
+      <div class="postgame-controls" id="postgame-controls-mobile" style="display:none;">
+        <button class="btn btn-ghost btn-sm" onclick="Game.exportPGN()">
+          <svg class="icon"><use href="/public/icons/sprite.svg#icon-download"></use></svg>
+          PGN
+        </button>
+        <button class="btn btn-ghost btn-sm" onclick="Game.copyFEN()">
+          <svg class="icon"><use href="/public/icons/sprite.svg#icon-copy"></use></svg>
+          FEN
+        </button>
+        <button class="btn btn-ghost btn-sm" onclick="Game.analyze()">
+          <svg class="icon"><use href="/public/icons/sprite.svg#icon-chart"></use></svg>
+          تحليل
+        </button>
+      </div>
+    </div>
   </div>
 
 </div>
 
 <script src="/public/js/chess.min.js"></script>
 <script src="/public/js/board.js"></script>
+<script src="/public/js/openings.js"></script>
 <script src="/public/js/game.js"></script>
 <script>
 document.addEventListener('DOMContentLoaded', () => {

public/css/chessboard.css

@@ -114,6 +114,11 @@
 }
 .square.last-move { background: rgba(231, 168, 50, 0.3) !important; }
 .square.in-check { background: rgba(239, 68, 68, 0.5) !important; }
+.square.premove-from { background: rgba(21, 180, 240, 0.35) !important; }
+.square.premove-to { background: rgba(21, 180, 240, 0.35) !important; }
+.square.highlight-green { background: rgba(21, 180, 90, 0.45) !important; }
+.square.highlight-red { background: rgba(220, 50, 50, 0.45) !important; }
+.square.highlight-yellow { background: rgba(220, 180, 30, 0.45) !important; }
 
 /* Pieces */
 .piece {
@@ -236,6 +241,28 @@
   color: var(--text-2);
 }
 
+.game-result-stats {
+  display: flex;
+  flex-direction: column;
+  gap: 4px;
+  margin-top: 12px;
+  font-family: var(--font-en);
+  font-size: 13px;
+  width: 180px;
+}
+
+.game-result-stats .stat-row {
+  display: flex;
+  justify-content: space-between;
+  padding: 3px 0;
+  color: var(--text-2);
+}
+
+.game-result-stats .stat-row span:last-child {
+  font-weight: 600;
+  color: var(--text-1, #fff);
+}
+
 /* Thinking indicator */
 .thinking {
   display: flex;
@@ -298,3 +325,419 @@
 }
 
 .promotion-piece:hover { background: var(--cyan); }
+
+/* ============================================
+   PRO FEATURES
+   ============================================ */
+
+/* Eval Bar */
+.eval-bar {
+  width: 24px;
+  min-width: 24px;
+  height: 100%;
+  background: #333;
+  border-radius: var(--radius-sm);
+  overflow: hidden;
+  position: relative;
+  border: 1px solid var(--border);
+}
+
+.eval-bar-fill {
+  position: absolute;
+  bottom: 0;
+  left: 0;
+  right: 0;
+  background: #fff;
+  transition: height 0.5s ease;
+  height: 50%;
+}
+
+.eval-bar-label {
+  position: absolute;
+  left: 0;
+  right: 0;
+  text-align: center;
+  font-family: var(--font-en);
+  font-size: 9px;
+  font-weight: 700;
+  pointer-events: none;
+  z-index: 1;
+}
+
+.eval-bar-label-top {
+  top: 4px;
+  color: #fff;
+}
+
+.eval-bar-label-bottom {
+  bottom: 4px;
+  color: #333;
+}
+
+/* Arrow Overlay */
+.board-arrows {
+  position: absolute;
+  inset: 0;
+  pointer-events: none;
+  z-index: 5;
+}
+
+.board-arrows svg {
+  width: 100%;
+  height: 100%;
+  position: absolute;
+  inset: 0;
+}
+
+.board-arrows svg line,
+.board-arrows svg polygon {
+  opacity: 0.7;
+}
+
+/* Square Highlights */
+.square-highlight-green {
+  background: rgba(21, 215, 100, 0.4) !important;
+}
+
+.square-highlight-red {
+  background: rgba(239, 68, 68, 0.45) !important;
+}
+
+.square-highlight-yellow {
+  background: rgba(255, 200, 0, 0.4) !important;
+}
+
+/* Pre-move Ghost Piece */
+.piece-ghost {
+  opacity: 0.45;
+  pointer-events: none;
+  filter: grayscale(0.3);
+}
+
+/* Move Classification Badges */
+.move-badge {
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  width: 16px;
+  height: 16px;
+  border-radius: 50%;
+  font-size: 9px;
+  font-weight: 800;
+  font-family: var(--font-en);
+  margin-inline-start: 4px;
+  vertical-align: middle;
+  flex-shrink: 0;
+}
+
+.move-brilliant {
+  background: #26c6da;
+  color: #fff;
+}
+
+.move-great {
+  background: #66bb6a;
+  color: #fff;
+}
+
+.move-good {
+  background: #81c784;
+  color: #fff;
+}
+
+.move-inaccuracy {
+  background: #fdd835;
+  color: #333;
+}
+
+.move-mistake {
+  background: #ef6c00;
+  color: #fff;
+}
+
+.move-blunder {
+  background: #e53935;
+  color: #fff;
+}
+
+/* Analysis Panel */
+.analysis-panel {
+  background: var(--bg-2);
+  border: 1px solid var(--border);
+  border-radius: var(--radius-md);
+  display: flex;
+  flex-direction: column;
+  overflow: hidden;
+  min-height: 0;
+}
+
+.analysis-panel-header {
+  padding: 10px 14px;
+  border-bottom: 1px solid var(--border);
+  font-size: 13px;
+  font-weight: 600;
+  display: flex;
+  align-items: center;
+  gap: 8px;
+}
+
+.analysis-eval-graph {
+  width: 100%;
+  height: 80px;
+  min-height: 60px;
+  background: var(--bg-3);
+  border-bottom: 1px solid var(--border);
+  position: relative;
+}
+
+.analysis-eval-graph canvas {
+  width: 100%;
+  height: 100%;
+  display: block;
+}
+
+/* Puzzle UI */
+.puzzle-header {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  padding: 12px 16px;
+  background: var(--bg-2);
+  border: 1px solid var(--border);
+  border-radius: var(--radius-md);
+}
+
+.puzzle-streak {
+  display: flex;
+  align-items: center;
+  gap: 6px;
+  font-family: var(--font-en);
+  font-size: 18px;
+  font-weight: 700;
+  color: var(--gold);
+}
+
+.puzzle-timer {
+  font-family: var(--font-en);
+  font-size: 16px;
+  font-weight: 600;
+  color: var(--text-2);
+  padding: 4px 10px;
+  background: var(--bg-3);
+  border-radius: var(--radius-sm);
+}
+
+/* Pro Move List */
+.move-list-pro {
+  flex: 1;
+  overflow-y: auto;
+  font-family: var(--font-en);
+  font-size: 13px;
+  direction: ltr;
+  text-align: left;
+  padding: 8px 0;
+  min-height: 0;
+  max-height: 320px;
+}
+
+.move-list-pro .move-pair {
+  display: flex;
+  align-items: center;
+  padding: 3px 12px;
+  gap: 2px;
+}
+
+.move-list-pro .move-pair:nth-child(odd) {
+  background: var(--bg-3);
+}
+
+.move-list-pro .move-number {
+  color: var(--text-3);
+  min-width: 30px;
+  font-size: 12px;
+}
+
+.move-list-pro .move {
+  padding: 3px 8px;
+  border-radius: 4px;
+  cursor: pointer;
+  min-width: 54px;
+  text-align: center;
+}
+
+.move-list-pro .move:hover {
+  background: var(--bg-hover, rgba(255,255,255,0.08));
+}
+
+.move-list-pro .move.current {
+  background: var(--cyan);
+  color: var(--text-inverse);
+}
+
+/* Opening Display */
+.opening-display {
+  padding: 8px 14px;
+  border-bottom: 1px solid var(--border);
+  font-size: 12px;
+  color: var(--text-2);
+  display: flex;
+  align-items: center;
+  gap: 6px;
+}
+
+.opening-eco {
+  font-family: var(--font-en);
+  font-weight: 700;
+  color: var(--cyan);
+  font-size: 11px;
+}
+
+.opening-name {
+  font-weight: 500;
+}
+
+/* Game Status in Panel */
+.panel-status {
+  padding: 10px 14px;
+  border-top: 1px solid var(--border);
+  font-size: 13px;
+  text-align: center;
+  color: var(--text-2);
+}
+
+/* Post-game Controls */
+.postgame-controls {
+  display: flex;
+  gap: 6px;
+  padding: 10px 14px;
+  border-top: 1px solid var(--border);
+  flex-wrap: wrap;
+}
+
+.postgame-controls .btn {
+  flex: 1;
+  min-width: 0;
+  font-size: 12px;
+  padding: 6px 8px;
+}
+
+/* Panel Controls Row */
+.panel-controls {
+  display: flex;
+  gap: 6px;
+  padding: 10px 14px;
+  border-top: 1px solid var(--border);
+}
+
+.panel-controls .btn {
+  flex: 1;
+  font-size: 12px;
+  padding: 6px 8px;
+}
+
+/* Pre-move indicator */
+.premove-indicator {
+  font-size: 11px;
+  color: var(--cyan);
+  padding: 4px 14px;
+  border-top: 1px solid var(--border);
+}
+
+/* ============================================
+   PRO GAME LAYOUT (Desktop + Mobile)
+   ============================================ */
+
+.game-layout {
+  display: flex;
+  flex-direction: column;
+  gap: 12px;
+  max-width: 100%;
+}
+
+.game-board-section {
+  display: flex;
+  gap: 8px;
+  align-items: stretch;
+}
+
+.game-side-panel {
+  display: none;
+  flex-direction: column;
+  width: 280px;
+  min-width: 260px;
+  max-height: calc(100vw - 60px);
+}
+
+/* Eval graph canvas container */
+.eval-graph-container {
+  position: relative;
+  width: 100%;
+  height: 80px;
+  background: var(--bg-3);
+}
+
+.eval-graph-container canvas {
+  position: absolute;
+  inset: 0;
+  width: 100%;
+  height: 100%;
+}
+
+/* ============================================
+   RESPONSIVE
+   ============================================ */
+
+@media (min-width: 768px) {
+  .game-layout {
+    flex-direction: row;
+    align-items: flex-start;
+    gap: 16px;
+  }
+
+  .game-board-column {
+    flex: 0 0 auto;
+  }
+
+  .game-side-panel {
+    display: flex;
+    flex: 1;
+    max-width: 320px;
+    max-height: 560px;
+  }
+
+  .game-mobile-panel {
+    display: none;
+  }
+
+  .board-wrapper {
+    max-width: 560px;
+  }
+}
+
+@media (max-width: 767px) {
+  .game-layout {
+    flex-direction: column;
+  }
+
+  .game-side-panel {
+    display: none;
+  }
+
+  .game-mobile-panel {
+    display: flex;
+    flex-direction: column;
+  }
+
+  .game-mobile-panel .analysis-panel {
+    max-height: 260px;
+  }
+
+  .game-mobile-panel .move-list-pro {
+    max-height: 160px;
+  }
+
+  .eval-bar {
+    width: 18px;
+    min-width: 18px;
+  }
+}

public/icons/sprite.svg

@@ -133,4 +133,30 @@
     <path d="M9.879 16.121A3 3 0 1012.015 11L11 14H9c0 .768.293 1.536.879 2.121z"/>
   </symbol>
 
+  <symbol id="icon-eye" viewBox="0 0 24 24">
+    <path d="M1 12s4-8 11-8 11 8 11 8-4 8-11 8-11-8-11-8z"/>
+    <circle cx="12" cy="12" r="3"/>
+  </symbol>
+
+  <symbol id="icon-download" viewBox="0 0 24 24">
+    <path d="M21 15v4a2 2 0 01-2 2H5a2 2 0 01-2-2v-4M7 10l5 5 5-5M12 15V3"/>
+  </symbol>
+
+  <symbol id="icon-copy" viewBox="0 0 24 24">
+    <rect x="9" y="9" width="13" height="13" rx="2" ry="2"/>
+    <path d="M5 15H4a2 2 0 01-2-2V4a2 2 0 012-2h9a2 2 0 012 2v1"/>
+  </symbol>
+
+  <symbol id="icon-chart" viewBox="0 0 24 24">
+    <path d="M18 20V10M12 20V4M6 20v-6"/>
+  </symbol>
+
+  <symbol id="icon-puzzle" viewBox="0 0 24 24">
+    <path d="M14.5 2.5a2.5 2.5 0 015 0v1h1a2 2 0 012 2v3.5h-1a2.5 2.5 0 000 5h1V17a2 2 0 01-2 2h-3.5v-1a2.5 2.5 0 00-5 0v1H7.5a2 2 0 01-2-2v-3.5h1a2.5 2.5 0 000-5h-1V5a2 2 0 012-2h3.5v-.5z"/>
+  </symbol>
+
+  <symbol id="icon-brain" viewBox="0 0 24 24">
+    <path d="M12 2C9.5 2 7.5 4 7.5 6.5c0 1-.5 2-1.5 2.5-1.5 1-2.5 2.5-2.5 4.5C3.5 16 5.5 18 8 18h1v3h6v-3h1c2.5 0 4.5-2 4.5-4.5 0-2-1-3.5-2.5-4.5-1-.5-1.5-1.5-1.5-2.5C16.5 4 14.5 2 12 2z"/>
+  </symbol>
+
 </svg>

templates/nav-desktop.php

@@ -5,6 +5,7 @@
   $navItems = [
     ['/', 'icon-home', 'الرئيسية'],
     ['/play', 'icon-play', 'العب'],
+    ['/puzzles', 'icon-puzzle', 'تمارين'],
     ['/tournaments', 'icon-trophy', 'بطولات'],
     ['/leaderboard', 'icon-leaderboard', 'متصدرون'],
     ['/friends', 'icon-friends', 'اجتماعي'],