/* --- VARIABLES & RESET --- */
        :root {
            --primary-color: #2563EB; /* Bleu Tech */
            --primary-dark: #1E40AF;
            --secondary-color: #0F172A; /* Bleu Nuit */
            --accent-color: #F59E0B; /* Orange */
            --text-color: #334155;
            --light-bg: #F8FAFC;
            --white: #FFFFFF;
            --success-color: #10B981;
            --transition: all 0.3s ease;
            --shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
        }

        * { margin: 0; padding: 0; box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        
        body {
            font-family: 'Roboto', sans-serif;
            line-height: 1.6;
            color: var(--text-color);
            background-color: var(--light-bg);
            overflow-x: hidden;
            padding-top: 80px; /* Ajouté pour compenser la navbar fixe */
        }

        h1, h2, h3, h4 { font-family: 'Poppins', sans-serif; color: var(--secondary-color); font-weight: 700; }
        a { text-decoration: none; color: inherit; }
        ul { list-style: none; }
        .container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

        /* --- NAVIGATION --- */
        .navbar {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            position: fixed;
            width: 100%; top: 0; z-index: 1000;
            box-shadow: 0 2px 10px rgba(0,0,0,0.05);
            transition: var(--transition);
        }

        .navbar .container { display: flex; justify-content: space-between; align-items: center; height: 80px; }
        .logo { font-size: 1.5rem; font-weight: 700; display: flex; align-items: center; gap: 10px; color: var(--secondary-color); }
        .logo-highlight { color: var(--primary-color); }
        .nav-menu { display: flex; gap: 20px; align-items: center; } /* Gap réduit pour faire place au bouton */
        
        .nav-menu a {
            font-weight: 500; font-size: 0.95rem; color: var(--secondary-color);
            transition: var(--transition); position: relative;
        }
        .nav-menu a:hover, .nav-menu a.active { color: var(--primary-color); }
        
        /* Soulignement au survol (sauf boutons) */
        .nav-menu a:not(.btn-nav)::after {
            content: ''; position: absolute; width: 0; height: 2px; bottom: -5px; left: 0;
            background-color: var(--primary-color); transition: var(--transition);
        }
        .nav-menu a:not(.btn-nav):hover::after { width: 100%; }

        /* Boutons Navbar */
        .btn-nav {
            padding: 8px 20px;
            border-radius: 50px;
            font-size: 0.9rem;
            font-weight: 600;
            transition: var(--transition);
            display: inline-flex; align-items: center; gap: 8px;
        }

        .btn-contact-nav {
             background-color: var(--primary-color);
            color: white !important;
            padding: 10px 20px;
            border-radius: 50px;
            box-shadow: 0 4px 15px rgba(37, 99, 235, 0.2);
        }
        
        .btn-contact-nav:hover {background-color: var(--primary-dark);
            transform: translateY(-2px);
            color: white !important; }

        .btn-login-nav {
            background-color: var(--secondary-color); color: white !important;
        }
        .btn-login-nav:hover { background-color: #334155; transform: translateY(-2px); }
        
        /* Indicateur utilisateur connecté */
        .user-status {
            display: none; /* Caché par défaut */
            align-items: center; gap: 8px;
            font-size: 0.9rem; font-weight: 600; color: var(--primary-color);
            margin-right: 10px;
        }

        .menu-toggle { display: none; background: none; border: none; font-size: 1.8rem; color: var(--secondary-color); cursor: pointer; }

        /* --- HERO SECTION --- */
        .hero {
            padding: 100px 0 100px; /* Ajusté */
            background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
            position: relative;
            overflow: hidden;
        }

        .hero::before {
            content: ''; position: absolute; top: -50px; right: -50px;
            width: 400px; height: 400px;
            background: radial-gradient(circle, rgba(37,99,235,0.1) 0%, transparent 70%);
            border-radius: 50%;
        }

        .hero .container {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

        .hero-content h1 {
            font-size: 3rem;
            line-height: 1.2;
            margin-bottom: 20px;
            color: var(--secondary-color);
        }

        .hero-highlight {
            color: var(--primary-color);
            position: relative;
            display: inline-block;
        }
        
        .hero-highlight::after {
            content: '';
            position: absolute;
            bottom: 5px; left: 0; width: 100%; height: 8px;
            background-color: rgba(245, 158, 11, 0.2); /* Accent color light */
            z-index: -1;
            border-radius: 4px;
        }

        .hero-subtitle {
            font-size: 1.15rem;
            color: #64748b;
            margin-bottom: 30px;
            max-width: 550px;
        }

        .hero-tagline {
            display: block;
            margin-top: 10px;
            font-weight: 500;
            color: var(--primary-color);
            background: rgba(37, 99, 235, 0.1);
            padding: 5px 15px;
            border-radius: 20px;
            width: fit-content;
            font-size: 0.9rem;
        }

        .hero-buttons {
            display: flex;
            gap: 15px;
            flex-wrap: wrap;
        }

        .hero-image {
            position: relative;
        }

        .hero-image img {
            width: 100%;
            border-radius: 20px;
            box-shadow: 0 20px 50px rgba(0,0,0,0.15);
            position: relative;
            z-index: 2;
            border: 5px solid white;
        }

        .hero-badge {
            position: absolute;
            bottom: -20px;
            left: -20px;
            background: white;
            padding: 15px 25px;
            border-radius: 15px;
            box-shadow: var(--shadow);
            z-index: 3;
            display: flex;
            align-items: center;
            gap: 15px;
            border-left: 5px solid var(--accent-color);
        }

        .hero-badge i { color: var(--accent-color); font-size: 1.5rem; }
        .hero-badge span { font-weight: 600; color: var(--secondary-color); font-size: 0.95rem; }

        /* --- AVANTAGES --- */
        .avantages { padding: 100px 0; background-color: white; }

        .section-header { text-align: center; margin-bottom: 60px; max-width: 700px; margin-left: auto; margin-right: auto; }
        .section-header h2 { font-size: 2.2rem; margin-bottom: 15px; }
        .section-header p { color: #64748b; font-size: 1.1rem; }

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

        .avantage-card {
            background: var(--light-bg);
            padding: 30px;
            border-radius: 20px;
            transition: var(--transition);
            border: 1px solid transparent;
        }

        .avantage-card:hover {
            transform: translateY(-10px);
            background: white;
            box-shadow: var(--shadow);
            border-color: #e2e8f0;
        }

        .avantage-icon {
            width: 60px; height: 60px;
            background: white;
            border-radius: 50%;
            display: flex; align-items: center; justify-content: center;
            font-size: 1.5rem; color: var(--primary-color);
            margin-bottom: 20px;
            box-shadow: 0 4px 10px rgba(0,0,0,0.05);
            transition: var(--transition);
        }

        .avantage-card:hover .avantage-icon { background: var(--primary-color); color: white; }
        .avantage-card h3 { margin-bottom: 10px; font-size: 1.2rem; }
        .avantage-card p { color: #64748b; font-size: 0.95rem; }

        /* --- SERVICES PREVIEW --- */
        .services-preview { padding: 100px 0; background-color: var(--secondary-color); color: white; position: relative; }
        
        .services-preview::before {
            content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 100%;
            background: url('https://www.transparenttextures.com/patterns/cubes.png'); opacity: 0.05;
        }

        .services-preview h2 { color: white; }
        .services-preview .section-header p { color: #94a3b8; }

        .services-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
            margin-bottom: 50px;
        }

        .service-card {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.1);
            padding: 30px;
            border-radius: 20px;
            transition: var(--transition);
            backdrop-filter: blur(5px);
        }

        .service-card:hover {
            background: rgba(255, 255, 255, 0.1);
            transform: translateY(-5px);
            border-color: var(--primary-color);
        }

        .service-header { display: flex; align-items: center; gap: 15px; margin-bottom: 15px; }
        .service-header i { font-size: 1.8rem; color: var(--primary-color); }
        .service-header h3 { color: white; font-size: 1.3rem; margin: 0; }
        .service-card p { color: #cbd5e1; margin-bottom: 20px; font-size: 0.95rem; }
        
        .service-link {
            color: var(--accent-color);
            font-weight: 600;
            display: inline-flex; align-items: center; gap: 5px;
            font-size: 0.9rem;
        }
        .service-link:hover { padding-left: 5px; transition: var(--transition); }

        /* --- TARIFS --- */
        .pricing-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
            align-items: center; /* Pour centrer la carte populaire si elle est plus grande */
        }
        
        .pricing-card {
            background: white;
            padding: 40px;
            border-radius: 20px;
            box-shadow: var(--shadow);
            border: 1px solid #e2e8f0;
            position: relative;
            transition: var(--transition);
        }
        
        .pricing-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
        }
        
        .pricing-card.popular {
            border: 2px solid var(--primary-color);
            transform: scale(1.05);
            z-index: 2;
            box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
        }
        
        .pricing-card.popular:hover {
            transform: scale(1.05) translateY(-5px);
        }
        
        .popular-badge {
            position: absolute; top: -15px; right: 20px;
            background: var(--accent-color); color: white;
            padding: 5px 15px; border-radius: 20px;
            font-size: 0.8rem; font-weight: bold;
            box-shadow: 0 4px 6px rgba(0,0,0,0.1);
        }
        
        .price {
            font-size: 2.5rem; font-weight: 700; color: var(--primary-color);
            margin-bottom: 20px;
        }
        
        .price span { font-size: 1rem; color: #64748b; font-weight: 400; }
        
        .features-list { margin-bottom: 30px; color: #475569; }
        .features-list li { margin-bottom: 12px; display: flex; align-items: center; gap: 10px; }
        .features-list i { color: var(--success-color); }

        /* --- CTA --- */
        .cta { padding: 100px 0; background: white; text-align: center; }

        .cta-content {
            background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
            padding: 60px;
            border-radius: 30px;
            position: relative;
            overflow: hidden;
            border: 1px solid #e2e8f0;
        }

        .cta-content h2 { margin-bottom: 15px; font-size: 2rem; }
        .cta-content p { font-size: 1.2rem; color: #64748b; margin-bottom: 30px; max-width: 600px; margin-left: auto; margin-right: auto; }
        
        /* --- BUTTONS --- */
        .btn {
            display: inline-flex; align-items: center; justify-content: center;
            padding: 12px 30px; border-radius: 50px; font-weight: 600;
            transition: var(--transition); gap: 10px; cursor: pointer; border: none;
            font-size: 1rem;
        }

        .btn-primary { background: var(--primary-color); color: white; box-shadow: 0 4px 15px rgba(37, 99, 235, 0.3); }
        .btn-primary:hover { background: var(--primary-dark); transform: translateY(-3px); }

        .btn-whatsapp { background: #25D366; color: white; box-shadow: 0 4px 15px rgba(37, 211, 102, 0.3); }
        .btn-whatsapp:hover { background: #20ba5a; transform: translateY(-3px); }

        .btn-secondary { background: white; color: var(--primary-color); border: 2px solid var(--primary-color); }
        .btn-secondary:hover { background: var(--primary-color); color: white; }

        .btn-outline { background: transparent; border: 2px solid var(--secondary-color); color: var(--secondary-color); }
        .btn-outline:hover { background: var(--secondary-color); color: white; }

        /* --- FOOTER --- */
        .footer {
            background-color: var(--secondary-color);
            color: #cbd5e1;
            padding: 80px 0 20px;
        }

        .footer-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 40px; margin-bottom: 60px; }
        .footer-col h3 { color: white; margin-bottom: 25px; font-size: 1.3rem; }
        
        .social-links { display: flex; gap: 15px; margin-top: 20px; }
        .social-links a {
            width: 40px; height: 40px; background: rgba(255,255,255,0.1);
            border-radius: 50%; display: flex; align-items: center; justify-content: center;
            transition: var(--transition);
        }
        .social-links a:hover { background: var(--primary-color); color: white; transform: translateY(-3px); }

        .footer-col ul li { margin-bottom: 12px; }
        .footer-col ul li a:hover { color: var(--primary-color); padding-left: 5px; transition: var(--transition); }

        .contact-info li { display: flex; align-items: flex-start; gap: 10px; }
        .contact-info i { margin-top: 5px; color: var(--accent-color); }

        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 30px;
            display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 20px; font-size: 0.9rem;
        }
        .footer-links { display: flex; gap: 20px; }

        /* --- RESPONSIVE IMPROVEMENTS --- */
        @media (max-width: 991px) {
            .hero { padding: 80px 0 60px; }
            .hero .container { grid-template-columns: 1fr; text-align: center; }
            .hero-content h1 { font-size: 2.5rem; }
            .hero-buttons { justify-content: center; }
            .hero-subtitle { margin-left: auto; margin-right: auto; }
            .hero-tagline { margin: 10px auto; }
            .hero-image { max-width: 500px; margin: 40px auto 0; }
            .hero-badge { left: 50%; transform: translateX(-50%); bottom: -30px; width: max-content; }
            
            /* Responsive Tarifs */
            .pricing-card.popular { transform: scale(1); }
            .pricing-card.popular:hover { transform: translateY(-5px); }
        }

        @media (max-width: 900px) {
            .menu-toggle { display: block; }
            .nav-menu {
                position: fixed; top: 80px; left: -100%; width: 100%; height: calc(100vh - 80px);
                background: white; flex-direction: column; padding: 40px 20px; gap: 15px;
                transition: 0.4s ease-in-out; box-shadow: 0 10px 15px rgba(0,0,0,0.05);
                overflow-y: auto; /* Pour les petits écrans en mode paysage */
            }
            .nav-menu.active { left: 0; }
            .nav-menu li { width: 100%; text-align: center; }
            .btn-nav { display: flex; width: 100%; justify-content: center; margin-top: 5px;}
            
            /* Ajustement pour l'indicateur user sur mobile */
            .user-status { justify-content: center; margin-right: 0; margin-bottom: 10px; }
            
            .footer-bottom { flex-direction: column; text-align: center; }
        }

        .reveal { opacity: 0; transform: translateY(30px); transition: all 0.8s ease; }
        .reveal.active { opacity: 1; transform: translateY(0); }