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HTML

<!DOCTYPE html>
<html lang="fr">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>TechMaster | Tutoriels Informatiques</title>
    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.0.0/css/all.min.css">
    <style>
        /* Reset et Variables */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', sans-serif;
        }

:root {
            --primary-color: #10B981;
            --secondary-color: #059669;
            --dark-color: #1F2937;
            --text-color: #374151;
        }

/* Navigation */
        .navbar {
            position: fixed;
            width: 100%;
            padding: 1rem;
            background: rgba(255, 255, 255, 0.98);
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
            z-index: 1000;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

.nav-content {
            max-width: 1200px;
            margin: 0 auto;
            width: 100%;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

.logo {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--primary-color);
        }

.nav-links {
            display: flex;
            gap: 2rem;
        }

.nav-links a {
            text-decoration: none;
            color: var(--text-color);
            font-weight: 500;
            transition: color 0.3s;
        }

/* Hero Section */
        .hero {
            padding: 120px 2rem 2rem;
            background: linear-gradient(135deg, #10B981, #059669);
            color: white;
            text-align: center;
        }

.search-container {
            max-width: 600px;
            margin: 2rem auto;
            position: relative;
        }

.search-input {
            width: 100%;
            padding: 1rem 2rem;
            border-radius: 30px;
            border: none;
            font-size: 1.1rem;
        }

/* Catégories */
        .categories {
            padding: 4rem 2rem;
            background: #F3F4F6;
        }

.categories-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            max-width: 1200px;
            margin: 0 auto;
        }

.category-card {
            background: white;
            padding: 2rem;
            border-radius: 10px;
            text-align: center;
            transition: transform 0.3s;
            cursor: pointer;
        }

.category-card:hover {
            transform: translateY(-5px);
        }

/* Tutoriels */
        .tutorials {
            padding: 4rem 2rem;
        }

.tutorials-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            max-width: 1200px;
            margin: 0 auto;
        }

.tutorial-card {
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
            transition: transform 0.3s;
        }

.tutorial-card:hover {
            transform: translateY(-5px);
        }

.tutorial-image {
            height: 200px;
            background-size: cover;
            background-position: center;
        }

.tutorial-content {
            padding: 1.5rem;
        }

.difficulty {
            display: inline-block;
            padding: 0.3rem 0.8rem;
            border-radius: 20px;
            font-size: 0.9rem;
        }

.beginner { background: #D1FAE5; color: #065F46; }
        .intermediate { background: #FEF3C7; color: #92400E; }
        .advanced { background: #FEE2E2; color: #991B1B; }

/* Newsletter */
        .newsletter {
            background: var(--dark-color);
            color: white;
            padding: 4rem 2rem;
            text-align: center;
        }

.newsletter-form {
            max-width: 500px;
            margin: 1rem auto;
            display: flex;
            gap: 1rem;
        }

.newsletter-input {
            flex: 1;
            padding: 1rem;
            border-radius: 5px;
            border: none;
        }

@media (max-width: 768px) {
            .nav-links { display: none; }
            .tutorials-grid { grid-template-columns: 1fr; }
            .newsletter-form { flex-direction: column; }
        }
    </style>
</head>
<body>
    <nav class="navbar">
        <div class="nav-content">
            <div class="logo">TechMaster</div>
            <div class="nav-links">
                <a href="#categories">Catégories</a>
                <a href="#tutorials">Tutoriels</a>
                <a href="#blog">Blog</a>
                <a href="#contact">Contact</a>
            </div>
            <i class="fas fa-search"></i>
        </div>
    </nav>

<section class="hero">
        <h1>Apprenez la technologie de demain</h1>
        <p>Plus de 1000 tutoriels gratuits en programmation, cybersécurité et IA</p>
        <div class="search-container">
            <input type="text" class="search-input" placeholder="Rechercher un tutoriel...">
            <i class="fas fa-search"></i>
        </div>
    </section>

<section class="categories" id="categories">
        <div class="categories-grid">
            <div class="category-card">
                <i class="fas fa-code fa-3x" style="color: var(--primary-color);"></i>
                <h3>Programmation</h3>
                <p>125 tutoriels</p>
            </div>
            <div class="category-card">
                <i class="fas fa-shield-alt fa-3x" style="color: var(--primary-color);"></i>
                <h3>Cybersécurité</h3>
                <p>89 tutoriels</p>
            </div>
            <div class="category-card">
                <i class="fas fa-robot fa-3x" style="color: var(--primary-color);"></i>
                <h3>Intelligence Artificielle</h3>
                <p>64 tutoriels</p>
            </div>
        </div>
    </section>

<section class="tutorials" id="tutorials">
        <div class="tutorials-grid">
            <div class="tutorial-card">
                <div class="tutorial-image" style="background-image: url('https://source.unsplash.com/random/800x600?python')"></div>
                <div class="tutorial-content">
                    <span class="difficulty beginner">Débutant</span>
                    <h3>Apprendre Python en 30 jours</h3>
                    <p>Maîtrisez les bases de la programmation avec Python</p>
                    <div style="margin-top: 1rem; color: var(--text-color);">
                        <i class="fas fa-clock"></i> 4h30 • <i class="fas fa-user-graduate"></i> 15,000+
                    </div>
                </div>
            </div>

<div class="tutorial-card">
                <div class="tutorial-image" style="background-image: url('https://source.unsplash.com/random/800x601?cybersecurity')"></div>
                <div class="tutorial-content">
                    <span class="difficulty advanced">Avancé</span>
                    <h3>Hacking Éthique</h3>
                    <p>Les fondamentaux de la sécurité informatique</p>
                    <div style="margin-top: 1rem; color: var(--text-color);">
                        <i class="fas fa-clock"></i> 6h00 • <i class="fas fa-user-graduate"></i> 8,500+
                    </div>
                </div>
            </div>

<div class="tutorial-card">
                <div class="tutorial-image" style="background-image: url('https://source.unsplash.com/random/800x602?ai')"></div>
                <div class="tutorial-content">
                    <span class="difficulty intermediate">Intermédiaire</span>
                    <h3>Introduction au Machine Learning</h3>
                    <p>Créez votre premier modèle prédictif</p>
                    <div style="margin-top: 1rem; color: var(--text-color);">
                        <i class="fas fa-clock"></i> 3h15 • <i class="fas fa-user-graduate"></i> 12,000+
                    </div>
                </div>
            </div>
        </div>
    </section>

<section class="newsletter">
        <h2>Abonnez-vous à notre newsletter</h2>
        <p>Recevez les nouveaux tutoriels directement dans votre boîte mail</p>
        <form class="newsletter-form">
            <input type="email" class="newsletter-input" placeholder="Entrez votre email">
            <button type="submit" class="cta-button" style="background: var(--primary-color); color: white; border: none; padding: 1rem 2rem; border-radius: 5px;">
                S'abonner
            </button>
        </form>
    </section>

document.querySelectorAll('.category-card, .tutorial-card').forEach(el => {
            el.style.transform = 'translateY(20px)';
            el.style.opacity = 0;
            observer.observe(el);
        });

// Menu mobile
        const menuToggle = document.createElement('i');
        menuToggle.className = 'fas fa-bars mobile-toggle';
        document.querySelector('.nav-content').appendChild(menuToggle);

menuToggle.addEventListener('click', () => {
            document.querySelector('.nav-links').classList.toggle('active');
        });

// Smooth Scroll
        document.querySelectorAll('a[href^="#"]').forEach(anchor => {
            anchor.addEventListener('click', function(e) {
                e.preventDefault();
                document.querySelector(this.getAttribute('href')).scrollIntoView({
                    behavior: 'smooth'
                });
            });
        });
    </script>
</body>
</html>

CSS