<!DOCTYPE html>
<html lang="fr">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Les Variables avec Scratch - Module Pédagogique</title>
    <style>
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        :root {
            --primary-blue: #2196F3;
            --dark-blue: #1976D2;
            --light-blue: #BBDEFB;
            --bg-color: #ffffff;
            --text-color: #333333;
            --sidebar-bg: #f5f5f5;
            --card-bg: #ffffff;
            --shadow: rgba(0, 0, 0, 0.1);
            --success: #4CAF50;
            --error: #f44336;
            --warning: #FF9800;
        }

        body.dark-mode {
            --bg-color: #1a1a1a;
            --text-color: #e0e0e0;
            --sidebar-bg: #2d2d2d;
            --card-bg: #2d2d2d;
            --shadow: rgba(255, 255, 255, 0.1);
        }

        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background-color: var(--bg-color);
            color: var(--text-color);
            line-height: 1.6;
            transition: background-color 0.3s, color 0.3s;
        }

        .container {
            display: flex;
            min-height: 100vh;
        }

        /* Sidebar */
        .sidebar {
            width: 280px;
            background-color: var(--sidebar-bg);
            padding: 20px;
            box-shadow: 2px 0 10px var(--shadow);
            position: fixed;
            height: 100vh;
            overflow-y: auto;
            transition: transform 0.3s, background-color 0.3s;
            z-index: 1000;
        }

        .sidebar.hidden {
            transform: translateX(-100%);
        }

        .sidebar-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 30px;
            padding-bottom: 15px;
            border-bottom: 2px solid var(--primary-blue);
        }

        .sidebar-title {
            font-size: 1.3em;
            color: var(--primary-blue);
            font-weight: bold;
        }

        .menu-item {
            padding: 12px 15px;
            margin: 8px 0;
            cursor: pointer;
            border-radius: 8px;
            transition: all 0.3s;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .menu-item:hover {
            background-color: var(--light-blue);
            transform: translateX(5px);
        }

        .menu-item.active {
            background-color: var(--primary-blue);
            color: white;
        }

        .menu-icon {
            font-size: 1.2em;
        }

        /* Main Content */
        .main-content {
            flex: 1;
            margin-left: 280px;
            transition: margin-left 0.3s;
        }

        .main-content.expanded {
            margin-left: 0;
        }

        /* Header */
        .header {
            background: linear-gradient(135deg, var(--primary-blue), var(--dark-blue));
            color: white;
            padding: 20px 30px;
            box-shadow: 0 2px 10px var(--shadow);
            position: sticky;
            top: 0;
            z-index: 100;
        }

        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .menu-toggle {
            background: none;
            border: none;
            color: white;
            font-size: 1.5em;
            cursor: pointer;
            padding: 5px 10px;
            border-radius: 5px;
            transition: background 0.3s;
        }

        .menu-toggle:hover {
            background: rgba(255, 255, 255, 0.2);
        }

        .header-controls {
            display: flex;
            gap: 15px;
            align-items: center;
        }

        .btn {
            padding: 10px 20px;
            border: none;
            border-radius: 5px;
            cursor: pointer;
            font-size: 1em;
            transition: all 0.3s;
            font-weight: 500;
        }

        .btn-primary {
            background-color: white;
            color: var(--primary-blue);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 4px 10px var(--shadow);
        }

        .btn-secondary {
            background-color: var(--dark-blue);
            color: white;
        }

        .btn-secondary:hover {
            background-color: #1565C0;
        }

        .btn-success {
            background-color: var(--success);
            color: white;
        }

        .btn-success:hover {
            background-color: #45a049;
        }

        /* Progress Bar */
        .progress-container {
            background-color: rgba(255, 255, 255, 0.3);
            height: 6px;
            border-radius: 3px;
            margin-top: 10px;
            overflow: hidden;
        }

        .progress-bar {
            height: 100%;
            background-color: white;
            transition: width 0.5s;
            border-radius: 3px;
        }

        /* Content Area */
        .content {
            padding: 30px;
            max-width: 1200px;
            margin: 0 auto;
        }

        .section {
            display: none;
            animation: fadeIn 0.5s;
        }

        .section.active {
            display: block;
        }

        @keyframes fadeIn {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .card {
            background-color: var(--card-bg);
            border-radius: 10px;
            padding: 25px;
            margin: 20px 0;
            box-shadow: 0 4px 15px var(--shadow);
            transition: transform 0.3s, box-shadow 0.3s;
        }

        .card:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 25px var(--shadow);
        }

        .card-title {
            color: var(--primary-blue);
            font-size: 1.8em;
            margin-bottom: 15px;
            border-left: 4px solid var(--primary-blue);
            padding-left: 15px;
        }

        .scratch-block {
            background: linear-gradient(135deg, #4C97FF, #3373CC);
            color: white;
            padding: 15px 20px;
            border-radius: 8px;
            margin: 10px 0;
            display: inline-block;
            font-family: 'Courier New', monospace;
            box-shadow: 0 3px 8px rgba(0, 0, 0, 0.2);
        }

        .scratch-block.orange {
            background: linear-gradient(135deg, #FF8C1A, #DB6E00);
        }

        .scratch-block.green {
            background: linear-gradient(135deg, #0FBD8C, #0B8E69);
        }

        .scratch-block.purple {
            background: linear-gradient(135deg, #9966FF, #774DCB);
        }

        .scratch-block.yellow {
            background: linear-gradient(135deg, #FFBF00, #E6AC00);
        }

        /* Exercise Styles */
        .exercise-container {
            background-color: var(--card-bg);
            border-radius: 10px;
            padding: 20px;
            margin: 20px 0;
            border: 2px solid var(--light-blue);
        }

        .question {
            margin: 20px 0;
            padding: 15px;
            background-color: var(--sidebar-bg);
            border-radius: 8px;
        }

        .question-text {
            font-weight: bold;
            margin-bottom: 10px;
            color: var(--primary-blue);
        }

        .options {
            margin: 10px 0;
        }

        .option {
            padding: 10px 15px;
            margin: 8px 0;
            background-color: var(--card-bg);
            border: 2px solid var(--light-blue);
            border-radius: 5px;
            cursor: pointer;
            transition: all 0.3s;
        }

        .option:hover {
            background-color: var(--light-blue);
            transform: translateX(5px);
        }

        .option.selected {
            background-color: var(--primary-blue);
            color: white;
            border-color: var(--primary-blue);
        }

        .option.correct {
            background-color: var(--success);
            color: white;
            border-color: var(--success);
        }

        .option.incorrect {
            background-color: var(--error);
            color: white;
            border-color: var(--error);
        }

        /* Drag and Drop */
        .drag-drop-container {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
            margin: 20px 0;
        }

        .draggable-items {
            flex: 1;
            min-width: 250px;
        }

        .drop-zones {
            flex: 1;
            min-width: 250px;
        }

        .draggable {
            padding: 12px 18px;
            margin: 8px 0;
            background-color: var(--primary-blue);
            color: white;
            border-radius: 8px;
            cursor: move;
            transition: all 0.3s;
            user-select: none;
        }

        .draggable:hover {
            transform: scale(1.05);
            box-shadow: 0 4px 12px var(--shadow);
        }

        .draggable.dragging {
            opacity: 0.5;
        }

        .drop-zone {
            min-height: 60px;
            padding: 15px;
            margin: 10px 0;
            border: 2px dashed var(--primary-blue);
            border-radius: 8px;
            transition: all 0.3s;
        }

        .drop-zone.drag-over {
            background-color: var(--light-blue);
            border-style: solid;
        }

        .drop-zone.filled {
            border-style: solid;
            border-color: var(--success);
        }

        /* Code Editor */
        .code-editor {
            background-color: #2d2d2d;
            color: #f8f8f2;
            padding: 20px;
            border-radius: 8px;
            font-family: 'Courier New', monospace;
            margin: 15px 0;
            overflow-x: auto;
        }

        .code-line {
            margin: 5px 0;
            padding: 5px;
        }

        .code-blank {
            display: inline-block;
            min-width: 100px;
            padding: 3px 10px;
            background-color: white;
            color: #333;
            border-radius: 4px;
            border: 2px solid var(--primary-blue);
            cursor: text;
        }

        .code-blank:focus {
            outline: none;
            box-shadow: 0 0 5px var(--primary-blue);
        }

        /* Score Display */
        .score-container {
            background: linear-gradient(135deg, var(--primary-blue), var(--dark-blue));
            color: white;
            padding: 20px;
            border-radius: 10px;
            text-align: center;
            margin: 20px 0;
        }

        .score-value {
            font-size: 3em;
            font-weight: bold;
            margin: 10px 0;
        }

        /* Certificate */
        .certificate {
            background: white;
            color: #333;
            padding: 40px;
            border-radius: 15px;
            border: 10px solid var(--primary-blue);
            text-align: center;
            max-width: 800px;
            margin: 30px auto;
            box-shadow: 0 10px 40px var(--shadow);
        }

        .certificate-title {
            font-size: 2.5em;
            color: var(--primary-blue);
            margin-bottom: 20px;
            font-weight: bold;
        }

        .certificate-text {
            font-size: 1.2em;
            margin: 15px 0;
            color: #333;
        }

        .certificate-name {
            font-size: 2em;
            color: var(--dark-blue);
            font-weight: bold;
            margin: 20px 0;
            text-decoration: underline;
        }

        /* Navigation Buttons */
        .navigation {
            display: flex;
            justify-content: space-between;
            margin-top: 30px;
            gap: 15px;
        }

        .nav-btn {
            padding: 12px 25px;
            background-color: var(--primary-blue);
            color: white;
            border: none;
            border-radius: 8px;
            cursor: pointer;
            font-size: 1em;
            transition: all 0.3s;
            font-weight: 500;
        }

        .nav-btn:hover {
            background-color: var(--dark-blue);
            transform: translateY(-2px);
            box-shadow: 0 4px 10px var(--shadow);
        }

        .nav-btn:disabled {
            background-color: #ccc;
            cursor: not-allowed;
            transform: none;
        }

        /* Glossary */
        .glossary-term {
            background-color: var(--card-bg);
            padding: 15px;
            margin: 10px 0;
            border-radius: 8px;
            border-left: 4px solid var(--primary-blue);
        }

        .term-title {
            font-weight: bold;
            color: var(--primary-blue);
            font-size: 1.2em;
        }

        .term-definition {
            margin-top: 8px;
            padding-left: 15px;
        }

        /* Responsive */
        @media (max-width: 768px) {
            .sidebar {
                transform: translateX(-100%);
            }

            .sidebar.active {
                transform: translateX(0);
            }

            .main-content {
                margin-left: 0;
            }

            .content {
                padding: 15px;
            }

            .header-content {
                flex-direction: column;
                gap: 10px;
            }

            .drag-drop-container {
                flex-direction: column;
            }

            .certificate {
                padding: 20px;
            }

            .certificate-title {
                font-size: 1.8em;
            }
        }

        /* Home Page Styles */
        .home-hero {
            background: linear-gradient(135deg, var(--primary-blue), var(--dark-blue));
            color: white;
            padding: 60px 30px;
            border-radius: 15px;
            text-align: center;
            margin-bottom: 30px;
        }

        .home-hero h1 {
            font-size: 2.5em;
            margin-bottom: 15px;
        }

        .home-hero p {
            font-size: 1.2em;
            opacity: 0.9;
        }

        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 20px;
            margin: 30px 0;
        }

        .feature-card {
            background-color: var(--card-bg);
            padding: 25px;
            border-radius: 10px;
            box-shadow: 0 4px 15px var(--shadow);
            text-align: center;
            transition: transform 0.3s;
        }

        .feature-card:hover {
            transform: translateY(-10px);
        }

        .feature-icon {
            font-size: 3em;
            margin-bottom: 15px;
        }

        .feature-title {
            color: var(--primary-blue);
            font-size: 1.3em;
            margin-bottom: 10px;
        }

        /* List Styles */
        .objective-list, .prerequis-list {
            list-style: none;
            padding: 0;
        }

        .objective-list li, .prerequis-list li {
            padding: 12px 15px;
            margin: 10px 0;
            background-color: var(--sidebar-bg);
            border-left: 4px solid var(--primary-blue);
            border-radius: 5px;
        }

        .objective-list li:before {
            content: "✓ ";
            color: var(--success);
            font-weight: bold;
            margin-right: 8px;
        }

        .prerequis-list li:before {
            content: "➤ ";
            color: var(--primary