:root {
            /* Palette de couleurs principale */
            --primary-color: #7ceded;
            --secondary-color: #25303b;
            --tertiary-color: #6d3dc5;
            --accent-color: #a9b6c3;
            --dark-bg: #0E0E1A;
            --light-text: #F4F4F4;
            --gradient-bg: linear-gradient(90deg, #46280f, #5c6a79, #a9b6c3, #dce6ef, #6dcde0, #2f2932, #2f3540);
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: 'Montserrat', sans-serif;
            background: var(--dark-bg);
            color: var(--light-text);
            overflow-x: hidden;
        }

        /* Navigation Styles - Z-index corrigé */
        .nav-container {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 9999; /* Z-index élevé pour la navbar */
            background: rgba(14, 14, 26, 0.95);
            backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(124, 237, 237, 0.2);
            transition: all 0.3s ease;
        }

        .nav-container.scrolled {
            background: rgba(14, 14, 26, 0.98);
            box-shadow: 0 4px 20px rgba(124, 237, 237, 0.1);
        }

        .nav-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1rem 2rem;
            max-width: 1400px;
            margin: 0 auto;
        }

        .logo-container {
            flex-shrink: 0;
        }

        .logo-img {
            height: 50px;
            width: auto;
            filter: drop-shadow(0 0 10px rgba(124, 237, 237, 0.3));
            transition: all 0.3s ease;
        }

        .logo-img:hover {
            filter: drop-shadow(0 0 15px rgba(124, 237, 237, 0.5));
            transform: scale(1.05);
        }

        .nav-menu {
            display: flex;
            list-style: none;
            gap: 2rem;
            margin: 0;
            padding: 0;
        }

        .nav-item {
            position: relative;
        }

        .nav-link {
            text-decoration: none;
            color: var(--light-text);
            font-weight: 500;
            padding: 0.5rem 1rem;
            border-radius: 25px;
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }

        .nav-link:hover,
        .nav-link.active {
            color: white;
            background: rgba(105, 236, 236, 0.1);
            transform: translateY(-2px);
        }

        .nav-link::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            width: 0;
            height: 2px;
            background: var(--primary-color);
            transition: all 0.3s ease;
            transform: translateX(-50%);
        }

        .nav-link:hover::after,
        .nav-link.active::after {
            width: 80%;
        }

        /* Burger Menu - Z-index le plus élevé */
        .burger {
            display: none;
            flex-direction: column;
            cursor: pointer;
            padding: 10px;
            z-index: 10002; /* Z-index très élevé pour le burger */
            position: relative;
        }

        .burger-line {
            width: 25px;
            height: 3px;
            background: var(--primary-color);
            margin: 3px 0;
            transition: 0.3s;
            border-radius: 2px;
        }

        .burger.active .burger-line:nth-child(1) {
            transform: rotate(-45deg) translate(-5px, 6px);
        }

        .burger.active .burger-line:nth-child(2) {
            opacity: 0;
        }

        .burger.active .burger-line:nth-child(3) {
            transform: rotate(45deg) translate(-5px, -6px);
        }

        /* Mobile Menu - Z-index très élevé */
        .mobile-menu {
            position: fixed;
            top: 80px;
            right: -100%;
            width: 280px;
            height: calc(100vh - 80px);
            background: rgba(14, 14, 26, 0.98);
            backdrop-filter: blur(20px);
            display: flex;
            flex-direction: column;
            padding: 2rem;
            transition: right 0.3s ease;
            border-left: 1px solid rgba(124, 237, 237, 0.2);
            z-index: 10001; /* Z-index très élevé pour le menu mobile */
            box-shadow: -5px 0 15px rgba(0, 0, 0, 0.5);
        }

        .mobile-menu.active {
            right: 0;
        }

        .mobile-menu .nav-link {
            margin: 0.5rem 0;
            padding: 1rem;
            border-radius: 10px;
            text-align: center;
            border: 1px solid rgba(124, 237, 237, 0.2);
            transition: all 0.3s ease;
        }

        .mobile-menu .nav-link:hover {
            background: rgba(124, 237, 237, 0.1);
            border-color: var(--primary-color);
        }

        /* Overlay pour fermer le menu */
        .mobile-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.7);
            z-index: 10000; /* Z-index élevé pour l'overlay */
            opacity: 0;
            visibility: hidden;
            transition: all 0.3s ease;
        }

        .mobile-overlay.active {
            opacity: 1;
            visibility: visible;
        }

        /* Hero Section - Z-index bas */
        .hero-section {
            min-height: 100vh;
            position: relative;
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
            background: var(--gradient-bg);
            background-size: 400% 400%;
            animation: gradientShift 15s ease infinite;
            z-index: 1; /* Z-index bas pour la section hero */
        }

        @keyframes gradientShift {
            0% { background-position: 0% 50%; }
            50% { background-position: 100% 50%; }
            100% { background-position: 0% 50%; }
        }

        .floating-elements {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            pointer-events: none;
            z-index: 2; /* Z-index bas pour les éléments flottants */
        }

        .floating-element {
            position: absolute;
            color: rgba(124, 237, 237, 0.3);
            animation: float 6s ease-in-out infinite;
        }

        .floating-element:nth-child(1) {
            top: 20%;
            left: 10%;
            animation-delay: 0s;
        }

        .floating-element:nth-child(2) {
            top: 60%;
            right: 15%;
            animation-delay: 2s;
        }

        .floating-element:nth-child(3) {
            bottom: 30%;
            left: 20%;
            animation-delay: 4s;
        }

        @keyframes float {
            0%, 100% { transform: translateY(0px) rotate(0deg); }
            50% { transform: translateY(-20px) rotate(10deg); }
        }

        .hero-content {
            text-align: center;
            z-index: 3; /* Z-index bas pour le contenu */
            max-width: 800px;
            padding: 2rem;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: rgba(124, 237, 237, 0.1);
            border: 1px solid rgba(124, 237, 237, 0.3);
            padding: 0.5rem 1rem;
            border-radius: 25px;
            font-size: 0.9rem;
            margin-bottom: 1rem;
            color: var(--primary-color);
        }

        .hero-title {
            font-size: 3.5rem;
            font-weight: 700;
            margin-bottom: 1rem;
            background: linear-gradient(45deg, var(--primary-color), #ffffff);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-subtitle {
            font-size: 1.5rem;
            color: var(--accent-color);
            margin-bottom: 1rem;
            font-weight: 400;
        }

        .hero-description {
            font-size: 1.1rem;
            line-height: 1.6;
            color: rgba(244, 244, 244, 0.8);
            margin-bottom: 2rem;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        .hero-buttons {
            display: flex;
            gap: 1rem;
            justify-content: center;
            flex-wrap: wrap;
        }

        .btn-primary-custom, .btn-secondary-custom {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 1rem 2rem;
            border-radius: 30px;
            text-decoration: none;
            font-weight: 500;
            transition: all 0.3s ease;
            border: 2px solid;
        }

        .btn-primary-custom {
            background: var(--primary-color);
            color: var(--dark-bg);
            border-color: var(--primary-color);
        }

        .btn-primary-custom:hover {
            background: transparent;
            color: var(--primary-color);
            transform: translateY(-2px);
            box-shadow: 0 10px 25px rgba(124, 237, 237, 0.3);
        }

        .btn-secondary-custom {
            background: transparent;
            color: var(--light-text);
            border-color: rgba(244, 244, 244, 0.3);
        }

        .btn-secondary-custom:hover {
            background: rgba(244, 244, 244, 0.1);
            border-color: var(--light-text);
            transform: translateY(-2px);
        }

        .scroll-indicator {
            position: absolute;
            bottom: 2rem;
            left: 50%;
            transform: translateX(-50%);
            z-index: 3; /* Z-index bas */
            animation: bounce 2s infinite;
        }

        .scroll-indicator a {
            color: var(--primary-color);
            text-decoration: none;
        }

        @keyframes bounce {
            0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0); }
            40% { transform: translateX(-50%) translateY(-10px); }
            60% { transform: translateX(-50%) translateY(-5px); }
        }

        /* Responsive Design */
        @media (max-width: 768px) {
            .nav-menu {
                display: none;
            }

            .burger {
                display: flex;
            }

            .hero-title {
                font-size: 2.5rem;
            }

            .hero-subtitle {
                font-size: 1.2rem;
            }

            .hero-buttons {
                flex-direction: column;
                align-items: center;
            }

            .btn-primary-custom,
            .btn-secondary-custom {
                width: 100%;
                max-width: 300px;
                justify-content: center;
            }

            .hero-content {
                padding: 1rem;
            }
        }

        @media (max-width: 480px) {
            .nav-content {
                padding: 1rem;
            }
            
            .mobile-menu {
                width: 100%;
                right: -100%;
            }
        }