         /* Variables et reset */
        :root {
            --primary-color: #2c5aa0;
            --secondary-color: #1d3a6b;
            --accent-color: #4a9dff;
            --light-color: #f8f9fa;
            --dark-color: #333;
            --gray-color: #6c757d;
            --shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
            --transition: all 0.3s ease;
            --border-radius: 8px;
        }

        * {
            font-family: "Roboto";
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            line-height: 1.6;
            color: var(--dark-color);
            background-color: var(--light-color);
        }

        .container {
            width: 90%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* En-tête et navigation */
        header {
            background-color: rgb(210, 208, 233);
            box-shadow: var(--shadow);
            position: fixed;
            width: 100%;
            top: 0;
            z-index: 1000;
        }

        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
        }

        .logo {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--primary-color);
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .logo img {
            color: var(--accent-color);
            width: 10%;
            height: 10%;
            border-radius: 50%;
        }

        .nav-menu {
            display: flex;
            list-style: none;
            gap: 30px;
        }

        .nav-menu a {
            text-decoration: none;
            color: var(--dark-color);
            font-weight: 600;
            transition: var(--transition);
            position: relative;
            padding: 5px 0;
        }

        .nav-menu a:hover {
            color: var(--primary-color);
        }

        .nav-menu a.active {
            color: var(--primary-color);
        }

        .nav-menu a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background-color: var(--accent-color);
            border-radius: 3px;
        }

        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: var(--primary-color);
        }

        /* Section héros */
        .hero {
            height: 90vh;
            background-image: url(./img/bg_2.jpg);
            background-size: cover;
            display: flex;
            align-items: center;
            color: white;
            text-align: center;
            margin-top: 70px;
        }

        .hero-content {
            max-width: 800px;
            margin: 0 auto;
            animation: fadeIn 1.5s ease-out;
        }

        .hero h1 {
            font-size: 3.5rem;
            margin-bottom: 20px;
            text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
        }

        .hero p {
            font-size: 1.2rem;
            margin-bottom: 30px;
            opacity: 0.9;
        }

        .btn {
            display: inline-block;
            background-color: var(--accent-color);
            color: white;
            padding: 12px 30px;
            border-radius: var(--border-radius);
            text-decoration: none;
            font-weight: 600;
            transition: var(--transition);
            border: none;
            cursor: pointer;
        }

        .btn:hover {
            background-color: var(--primary-color);
            transform: translateY(-3px);
            box-shadow: var(--shadow);
        }

        /* Sections compartimentées */
        .section {
            padding: 100px 0;
        }

        .section-title {
            text-align: center;
            margin-bottom: 60px;
        }

        .section-title h2 {
            font-size: 2.5rem;
            color: var(--primary-color);
            margin-bottom: 15px;
            position: relative;
            display: inline-block;
        }

        .section-title h2::after {
            content: '';
            position: absolute;
            bottom: -10px;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 4px;
            background-color: var(--accent-color);
            border-radius: 2px;
        }

        .section-title p {
            color: var(--gray-color);
            max-width: 1000px;
            margin: 0 auto;
        }

        /* Section historique */
        .history-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 40px;
        }

        .history-card {
            background-color: white;
            border-radius: var(--border-radius);
            padding: 30px;
            box-shadow: var(--shadow);
            transition: var(--transition);
            opacity: 0;
            transform: translateY(30px);
        }

        .history-card.visible {
            opacity: 1;
            transform: translateY(0);
        }

        .history-card:hover {
            transform: translateY(-10px);
        }

        .history-icon {
            font-size: 2.5rem;
            color: var(--accent-color);
            margin-bottom: 20px;
        }

        .history-card h3 {
            font-size: 1.5rem;
            margin-bottom: 15px;
            color: var(--secondary-color);
        }

        /* Section domaines */
        .domains {
            background-color: #f1f7ff;
        }

        .domains-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
        }

        .domain-card {
            background-color: white;
            border-radius: var(--border-radius);
            padding: 30px;
            box-shadow: var(--shadow);
            transition: var(--transition);
            text-align: center;
            opacity: 0;
            transform: translateY(30px);
        }

        .domain-card p{
            margin-inline:unset;
        }

        .domain-card.visible {
            opacity: 1;
            transform: translateY(0);
        }

        .domain-card:hover {
            transform: translateY(-10px);
            border-bottom: 5px solid var(--accent-color);
        }

        .domain-icon {
            width: 90px;
            height: 90px;
            background-color: #e8f1ff;
            border-radius: 70%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            font-size: 2rem;
            color: var(--primary-color);
        }

        .domain-icon img{
            width: 60pt;
            height: 60pt;
            border-radius: 50%;
        }

        .domain-card h3 {
            font-size: 1.5rem;
            margin-bottom: 15px;
            color: var(--secondary-color);
        }

        /* Section équipe */
        .team-container {
            display: flex;
            flex-wrap: wrap;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
            justify-content: center;
            align-items: center;
        }

        .team-card {
            background-color: white;
            border-radius: var(--border-radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: var(--transition);
            opacity: 0;
            transform: translateY(30px);
            justify-content: center;
            align-items: center;
        }

        .team-card.visible {
            opacity: 1;
            transform: translateY(0);
        }

        .team-card:hover {
            transform: translateY(-10px);
        }

        .team-img {
            height: 250px;
            overflow: hidden;
        }

        .team-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }

        .team-card:hover .team-img img {
            transform: scale(1.1);
        }

        .team-info {
            padding: 20px;
            text-align: center;
        }

        .team-info h3 {
            font-size: 1.3rem;
            margin-bottom: 5px;
            color: var(--secondary-color);
        }

        .team-info p {
            color: var(--gray-color);
            font-style:normal;
        }

        /* Section contact */
        .contact {
            background-color: #f1f7ff;
        }

        .contact-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 50px;
        }

        .contact-info {
            display: flex;
            flex-direction: column;
            gap: 25px;
            text-decoration: none;
        }

        .contact-item {
            display: flex;
            align-items: flex-start;
            gap: 15px;
            text-decoration: none;

        }

        .contact-icon {
            width: 50px;
            height: 50px;
            background-color: var(--accent-color);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            color: white;
            flex-shrink: 0;
        }

        .contact-text h3 {
            margin-bottom: 5px;
            color: var(--secondary-color);
        }

        .contact-text p {
            margin-bottom: 5px;
            color: var(--secondary-color);
            text-decoration: none;
        }

        .contact-form {
            background-color: white;
            padding: 30px;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
            align-items: center;
            justify-content: center;
        }

        .contact-form img{
            border-radius: 50%;
        }

        .form-group {
            margin-bottom: 20px;
        }

        .form-group label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
            color: var(--dark-color);
        }

        .form-group input,
        .form-group textarea {
            width: 100%;
            padding: 12px 15px;
            border: 1px solid #ddd;
            border-radius: var(--border-radius);
            font-family: inherit;
            transition: var(--transition);
        }

        .form-group input:focus,
        .form-group textarea:focus {
            outline: none;
            border-color: var(--accent-color);
        }

        /* Pied de page */
        footer {
            background-color: var(--secondary-color);
            color: white;
            padding: 40px 0 20px;
        }

        .footer-container {
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
        }

        .footer-logo {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 20px;
            color: white;
        }

        .footer-logo span {
            color: var(--accent-color);
            justify-content: center;
            align-items: center;
            display:inline;
            gap: 20px;
        }

        .footer-logo img{
            width: 6%;
            height: 6%;
            border-radius: 50%;
            justify-content: center;
            align-items: center;
            display:inline;
            gap: 20px;
        }

        .footer-text {
            max-width: 600px;
            margin-bottom: 30px;
            opacity: 0.8;
        }

        .social-icons {
            display: flex;
            gap: 20px;
            margin-bottom: 30px;
        }

        .social-icons a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background-color: rgba(255, 255, 255, 0.1);
            border-radius: 50%;
            color: white;
            text-decoration: none;
            transition: var(--transition);
        }

        .social-icons a:hover {
            background-color: var(--accent-color);
            transform: translateY(-5px);
        }

        .copyright {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            width: 100%;
            opacity: 0.7;
            font-size: 0.9rem;
        }

        /* Animations */
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }

        @keyframes slideInLeft {
            from { opacity: 0; transform: translateX(-50px); }
            to { opacity: 1; transform: translateX(0); }
        }

        @keyframes slideInRight {
            from { opacity: 0; transform: translateX(50px); }
            to { opacity: 1; transform: translateX(0); }
        }

        /* Responsive */
        @media (max-width: 992px) {
            .hero h1 {
                font-size: 2.8rem;
            }
            
            .section-title h2 {
                font-size: 2.2rem;
            }
        }

        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }

            .nav-menu {
                position: fixed;
                top: 70px;
                right: -100%;
                flex-direction: column;
                background-color: white;
                width: 100%;
                text-align: center;
                padding: 30px 0;
                box-shadow: var(--shadow);
                transition: var(--transition);
                gap: 0;
            }

            .nav-menu.active {
                right: 0;
            }

            .nav-menu li {
                margin: 15px 0;
            }

            .hero h1 {
                font-size: 2.3rem;
            }

            .hero {
                height: 70vh;
            }

            .section {
                padding: 70px 0;
            }
        }

        @media (max-width: 576px) {
            .hero h1 {
                font-size: 1.8rem;
            }
            
            .section-title h2 {
                font-size: 1.8rem;
            }
            
            .history-card, .domain-card, .team-card {
                padding: 20px;
            }
        }