:root {
            --primary-color: #ffd700;
            --secondary-color: #001a57;
            --accent-color: #fff;
            --text-color: #333;
            --background-color: #f0f5ff;
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        
        body {
            background-color: var(--background-color);
            color: var(--text-color);
            line-height: 1.6;
        }
        
        header {
            background: var(--secondary-color);
            color: var(--accent-color);
            padding: 2rem 0;
            text-align: center;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
        }
        
        .main-logo {
            margin-right: 1.5rem;
            border-radius: 50%;
            box-shadow: 0 0 15px rgba(255, 215, 0, 0.5);
            background-color: var(--secondary-color);
        }
        
        @media (max-width: 768px) {
            .main-logo {
                width: 150px;
                height: 150px;
                margin-bottom: 1rem;
            }
        }
        
        .language-toggle {
            position: absolute;
            top: 1rem;
            right: 1rem;
            display: flex;
            background-color: rgba(0, 0, 0, 0.3);
            border-radius: 30px;
            padding: 0.3rem;
            box-shadow: 0 0 10px rgba(255, 215, 0, 0.3);
        }
        
        .language-toggle button {
            background: none;
            border: none;
            color: white;
            padding: 0.5rem 1rem;
            cursor: pointer;
            border-radius: 20px;
            transition: all 0.3s ease;
            font-weight: bold;
        }
        
        .language-toggle button.active {
            background-color: var(--primary-color);
            color: var(--secondary-color);
        }
        
        .language-toggle button:hover:not(.active) {
            background-color: rgba(255, 255, 255, 0.2);
        }
        
        .logo-container {
            display: flex;
            justify-content: center;
            align-items: center;
            margin-bottom: 1rem;
            position: relative;
        }
        
        header h1 {
            font-size: 2.5rem;
            margin-bottom: 0.5rem;
        }
        
        header p {
            font-size: 1.2rem;
            opacity: 0.9;
        }
        
        nav {
            background-color: var(--secondary-color);
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 100;
            border-bottom: 2px solid var(--primary-color);
        }
        
        .nav-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 2rem;
            position: relative;
        }
        
        .menu-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--accent-color);
            font-size: 1.8rem;
            cursor: pointer;
            padding: 0.5rem;
            position: absolute;
            left: 2rem;
            top: 50%;
            transform: translateY(-50%);
            z-index: 101;
        }
        
        nav ul {
            display: flex;
            justify-content: center;
            list-style: none;
            flex-wrap: wrap;
            margin: 0;
            padding: 0;
        }
        
        nav ul li {
            margin: 0 1rem;
        }
        
        nav ul li a {
            color: var(--accent-color);
            text-decoration: none;
            font-weight: bold;
            font-size: 1.1rem;
            transition: all 0.3s ease;
            display: block;
            padding: 0.5rem;
        }
        
        nav ul li a:hover {
            color: var(--primary-color);
        }
        
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 2rem;
        }
        
        section {
            margin-bottom: 3rem;
            padding: 2rem;
            background-color: white;
            border-radius: 8px;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
        }
        
        section h2 {
            color: var(--secondary-color);
            margin-bottom: 1.5rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid var(--primary-color);
            position: relative;
            display: inline-block;
        }
        
        section h2::after {
            content: "";
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 50%;
            height: 2px;
            background-color: var(--primary-color);
            box-shadow: 0 0 8px rgba(255, 215, 0, 0.8);
        }
        
        .hero {
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
            padding: 3rem 2rem;
            background: linear-gradient(rgba(0, 0, 40, 0.8), rgba(0, 26, 87, 0.9)), url('/api/placeholder/1200/600') center/cover;
            color: white;
            border-radius: 8px;
            margin-bottom: 2rem;
            position: relative;
            overflow: hidden;
        }
        
        .hero::after {
            content: "";
            position: absolute;
            bottom: -10px;
            left: 0;
            width: 100%;
            height: 60px;
            background: linear-gradient(90deg, transparent, var(--primary-color), transparent);
            opacity: 0.3;
            animation: shine 3s infinite;
        }
        
        @keyframes shine {
            0% { transform: translateX(-100%); }
            100% { transform: translateX(100%); }
        }
        
        .hero h2 {
            font-size: 2.2rem;
            margin-bottom: 1rem;
            color: white;
            border-bottom: none;
        }
        
        .hero p {
            font-size: 1.2rem;
            max-width: 800px;
            margin-bottom: 2rem;
        }
        
        .btn {
            display: inline-block;
            background-color: var(--primary-color);
            color: var(--secondary-color);
            padding: 0.8rem 1.5rem;
            border-radius: 50px;
            text-decoration: none;
            font-weight: bold;
            text-transform: uppercase;
            transition: all 0.3s ease;
            border: none;
            cursor: pointer;
            box-shadow: 0 0 10px rgba(255, 215, 0, 0.5);
        }
        
        .btn:hover {
            background-color: #fff;
            color: var(--secondary-color);
            transform: translateY(-3px);
            box-shadow: 0 0 20px rgba(255, 215, 0, 0.7);
        }
        
        .features {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
        }
        
        .feature-card {
            background-color: var(--background-color);
            padding: 1.5rem;
            border-radius: 8px;
            text-align: center;
            transition: all 0.3s ease;
        }
        
        .feature-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
        }
        
        .feature-icon {
            font-size: 2.5rem;
            color: var(--primary-color);
            margin-bottom: 1rem;
            text-shadow: 0 0 5px rgba(255, 215, 0, 0.5);
        }
        
        .feature-card h3 {
            color: var(--secondary-color);
            margin-bottom: 1rem;
        }
        
        .events-list {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
        }
        
        .event-card {
            border: 1px solid #ddd;
            border-radius: 8px;
            overflow: hidden;
            transition: all 0.3s ease;
        }
        
        .event-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
        }
        
        .event-image {
            height: 200px;
            background-color: #ddd;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #888;
        }
        
        .event-details {
            padding: 1.5rem;
        }
        
        .event-date {
            background-color: var(--primary-color);
            color: white;
            display: inline-block;
            padding: 0.5rem 1rem;
            border-radius: 4px;
            margin-bottom: 1rem;
        }
        
        .event-card h3 {
            margin-bottom: 1rem;
            color: var(--secondary-color);
        }
        
        .team-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
        }
        
        .team-member {
            text-align: center;
        }
        
        .team-photo {
            width: 150px;
            height: 150px;
            border-radius: 50%;
            background-color: #ddd;
            margin: 0 auto 1rem;
            overflow: hidden;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        
        .team-member h3 {
            color: var(--secondary-color);
            margin-bottom: 0.5rem;
        }
        
        .team-member p {
            color: var(--primary-color);
            font-weight: bold;
            margin-bottom: 0.5rem;
        }
        
        .social-links {
            display: flex;
            justify-content: center;
            gap: 1rem;
            margin-top: 1rem;
        }
        
        .social-links a {
            color: var(--text-color);
            font-size: 1.2rem;
            transition: all 0.3s ease;
        }
        
        .social-links a:hover {
            color: var(--primary-color);
        }
        
        .notification {
            position: fixed;
            top: 20px;
            right: 20px;
            padding: 15px 25px;
            border-radius: 5px;
            color: white;
            font-weight: bold;
            transform: translateX(150%);
            transition: transform 0.3s ease;
            z-index: 1000;
            box-shadow: 0 3px 10px rgba(0, 0, 0, 0.2);
        }
        
        .notification.success {
            background-color: #4CAF50;
            border-left: 5px solid #2E7D32;
        }
        
        .notification.error {
            background-color: #F44336;
            border-left: 5px solid #B71C1C;
        }
        
        .notification.show {
            transform: translateX(0);
        }
        
        .notification-close {
            margin-left: 15px;
            cursor: pointer;
        }
        
        .contact-form {
            max-width: 600px;
            margin: 0 auto;
        }
        
        .form-group {
            margin-bottom: 1.5rem;
            position: relative;
        }
        
        .form-loading {
            display: none;
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-color: rgba(255, 255, 255, 0.7);
            justify-content: center;
            align-items: center;
            z-index: 5;
        }
        
        .form-loading .spinner {
            width: 40px;
            height: 40px;
            border: 4px solid rgba(0, 0, 0, 0.1);
            border-radius: 50%;
            border-top-color: var(--primary-color);
            animation: spin 1s linear infinite;
        }
        
        @keyframes spin {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }
        
        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: bold;
        }
        
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 0.8rem;
            border: 1px solid #ddd;
            border-radius: 4px;
            font-size: 1rem;
        }
        
        .form-group textarea {
            height: 150px;
            resize: vertical;
        }
        
        footer {
            background-color: var(--secondary-color);
            color: var(--accent-color);
            padding: 3rem 0;
            text-align: center;
            border-top: 2px solid var(--primary-color);
        }
        
        .footer-links {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            margin-bottom: 2rem;
        }
        
        .footer-links a {
            color: var(--accent-color);
            text-decoration: none;
            margin: 0 1rem;
            transition: all 0.3s ease;
        }
        
        .footer-links a:hover {
            color: var(--primary-color);
        }
        
        .footer-social {
            margin-bottom: 2rem;
        }
        
        .footer-social a {
            color: var(--accent-color);
            font-size: 1.5rem;
            margin: 0 1rem;
            transition: all 0.3s ease;
        }
        
        .footer-social a:hover {
            color: var(--primary-color);
        }
        
        .copyright {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 2rem;
            font-size: 0.9rem;
            opacity: 0.8;
        }
        
        @media (max-width: 768px) {
            header h1 {
                font-size: 1.5rem;
            }
            
            header p {
                font-size: 1rem;
            }
            
            .language-toggle {
                top: 0.5rem;
                right: 0.5rem;
                padding: 0.2rem;
            }
            
            .language-toggle button {
                padding: 0.4rem 0.8rem;
                font-size: 0.9rem;
            }
            
            .menu-toggle {
                display: block;
            }
            
            nav ul {
                flex-direction: column;
                align-items: center;
                position: fixed;
                top: 0;
                right: -100%;
                height: 100vh;
                width: 250px;
                background-color: var(--secondary-color);
                padding: 5rem 0 2rem;
                transition: right 0.3s ease;
                box-shadow: -2px 0 10px rgba(0, 0, 0, 0.3);
                overflow-y: auto;
            }
            
            nav ul.active {
                right: 0;
            }
            
            nav ul li {
                margin: 0;
                width: 100%;
                text-align: center;
                border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            }
            
            nav ul li a {
                padding: 1rem;
                width: 100%;
                font-size: 1rem;
            }
            
            nav ul li a:hover {
                background-color: rgba(255, 215, 0, 0.1);
            }
            
            .nav-container {
                padding: 0 1rem;
            }
            
            .menu-toggle {
                left: 1rem;
            }
            
            nav ul li {
                margin: 0.5rem 0;
            }
            
            nav ul li a {
                font-size: 1rem;
            }
            
            .container {
                padding: 1rem;
            }
            
            section {
                padding: 1.5rem;
                margin-bottom: 2rem;
            }
            
            .hero {
                padding: 2rem 1rem;
            }
            
            .hero h2 {
                font-size: 1.5rem;
            }
            
            .hero p {
                font-size: 1rem;
            }
            
            .features {
                grid-template-columns: 1fr;
            }
            
            .events-list {
                grid-template-columns: 1fr;
            }
            
            .team-grid {
                grid-template-columns: 1fr;
            }
            
            .contact-form {
                padding: 0;
            }
            
            .footer-links {
                flex-direction: column;
                gap: 0.5rem;
            }
            
            .footer-links a {
                margin: 0.3rem 0;
            }
            
            .notification {
                right: 10px;
                left: 10px;
                top: 10px;
            }
        }
        
        @media (max-width: 480px) {
            header h1 {
                font-size: 1.3rem;
            }
            
            .btn {
                padding: 0.6rem 1rem;
                font-size: 0.9rem;
            }
            
            .feature-card {
                padding: 1rem;
            }
            
            .feature-icon {
                font-size: 2rem;
            }
            
            section h2 {
                font-size: 1.5rem;
            }
        }
    
        /* --- mentions de soutien et bloc partenaires (ajout 24/09/2026) --- */
        .soutien {
            margin-top: 1rem;
            font-size: 0.85rem;
            opacity: 0.85;
        }
        #projets .feature-card { display: flex; flex-direction: column; }
        #projets .soutien { margin-top: auto; padding-top: 1rem; }
        .soutien-libelle { display: block; margin-bottom: 0.25rem; }
        .soutien a { font-weight: 600; text-decoration: none; border-bottom: 1px solid currentColor; }
        .partenaires { margin: 2rem 0 1rem; text-align: center; }
        .partenaires-titre { font-size: 0.95rem; font-weight: 600; margin-bottom: 0.75rem; }
        .partenaires-liste {
            display: flex; flex-wrap: wrap; align-items: center;
            justify-content: center; gap: 1.5rem;
        }
        .partenaires-liste a { text-decoration: none; }
        .soutien-logo { height: 20px; width: auto; vertical-align: middle; }
        .partenaire {
            background: #fff; border-radius: 6px;
            padding: 22px; display: inline-flex; align-items: center;   /* espace libre >= hauteur du logo (charte ElevenLabs) */
            transition: transform 0.2s ease;
        }
        .partenaire:hover { transform: translateY(-2px); }
        .partenaire-logo { height: 22px; width: auto; display: block; }
        .partenaire-logo-large { height: 22px; }
        .partenaire-texte {
            color: var(--accent-color); font-size: 0.9rem;
            border-bottom: 1px solid currentColor;
        }