/* Reset et variables CSS */
        :root {
            --primary-color: #2E8B57; /* Vert écolo */
            --secondary-color: #3CB371;
            --light-color: #F0FFF0; /* Vert très clair */
            --dark-color: #228B22; /* Vert foncé */
            --text-color: #333;
            --white: #FFFFFF;
            --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
            --border-radius: 8px;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: 'Arial', sans-serif;
            line-height: 1.6;
            color: var(--text-color);
            background-color: var(--light-color);
        }

        /* Header */
        header {
            background-color: var(--white);
            box-shadow: var(--shadow);
            position: fixed;
            width: 100%;
            top: 0;
            z-index: 1000;
            padding: 1rem 2rem;
        }

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

        .logo {
            font-size: 1.8rem;
            font-weight: bold;
            color: var(--primary-color);
            text-decoration: none;
        }

        .logo span {
            color: var(--secondary-color);
        }

        nav ul {
            display: flex;
            list-style: none;
        }

        nav ul li {
            margin-left: 2rem;
        }

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

        nav ul li a:hover {
            color: var(--primary-color);
        }

        .btn {
            background-color: var(--primary-color);
            color: var(--white);
            padding: 0.5rem 1.5rem;
            border: none;
            border-radius: var(--border-radius);
            cursor: pointer;
            text-decoration: none;
            font-weight: 600;
            transition: background-color 0.3s;
        }

        .btn:hover {
            background-color: var(--red-color);
        }

        /* Hero Section */
        .hero {
           background: linear-gradient(rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.5)), url('../img/velobagages.png');

            background-size: cover;
            background-position: center;
            height: 110vh;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            color: var(--white);
            padding: 0 1rem;
        }

        .hero1 {
           /*background: linear-gradient(rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.5));*/
            background-color: white;
            background-size: cover;
            background-position: center;
            height: 110vh;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            color: var(--white);
            padding: 0 1rem;
        }
        .mon-text {
            margin-left: 2rem; 
            margin-bottom: 0cm; 
            font-style: normal; 
            orphans: 2; 
            letter-spacing: normal; 
            widows: 2; 
            border: none; 
            padding: 0cm; 
            font-variant: normal; 
            font-weight: normal;
            color: green;
            }
        .hero-content {
            max-width: 800px;
        }

        .hero h1 {
            font-size: 3rem;
            margin-bottom: 1rem;
        }

        .hero p {
            font-size: 1.2rem;
            margin-bottom: 2rem;
        }

        /* IA Frugale Section */
        .ia-frugale {
            padding: 5rem 2rem;
            max-width: 1200px;
            margin: 0 auto;
            background-color: var(--white);
        }

        .ia-frugale h2 {
            text-align: center;
            margin-bottom: 2rem;
            font-size: 2.2rem;
            color: var(--primary-color);
        }

        .ia-frugale-intro {
            text-align: center;
            max-width: 800px;
            margin: 0 auto 3rem;
            font-size: 1.1rem;
            color: var(--text-color);
        }

        .ia-frugale-features {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
        }

        .ia-frugale-feature {
            background-color: var(--light-color);
            padding: 2rem;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
            text-align: center;
            transition: transform 0.3s;
        }

        .ia-frugale-feature:hover {
            transform: translateY(-10px);
        }

        .ia-frugale-feature i {
            font-size: 2.5rem;
            color: var(--secondary-color);
            margin-bottom: 1rem;
        }

        .ia-frugale-feature h3 {
            color: var(--primary-color);
            margin-bottom: 1rem;
        }

        /* Services Section */
        .services {
            padding: 5rem 2rem;
            max-width: 1200px;
            margin: 0 auto;
        }

        .section-title {
            text-align: center;
            margin-bottom: 3rem;
            font-size: 2.2rem;
            color: var(--primary-color);
        }

        .services-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
        }

        .service-card {
            background-color: var(--white);
            padding: 2rem;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
            transition: transform 0.3s;
        }

        .service-card:hover {
            transform: translateY(-10px);
        }

        .service-card h3 {
            color: var(--primary-color);
            margin-bottom: 1rem;
        }

        .service-card p {
            margin-bottom: 1.5rem;
        }

        /* Why Choose Us Section */
        .why-choose-us {
            background-color: var(--white);
            padding: 5rem 2rem;
            text-align: center;
        }

        .why-choose-us h2 {
            margin-bottom: 3rem;
            font-size: 2.2rem;
            color: var(--primary-color);
        }

        .features {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 3rem;
            max-width: 1000px;
            margin: 0 auto;
        }

        .feature {
            flex: 1;
            min-width: 200px;
            text-align: center;
        }

        .feature i {
            font-size: 3rem;
            color: var(--secondary-color);
            margin-bottom: 1rem;
        }

        .feature h3 {
            margin-bottom: 1rem;
            color: var(--primary-color);
        }

        /* News Section */
        .news {
            padding: 5rem 2rem;
            max-width: 1200px;
            margin: 0 auto;
        }

        .news-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
        }

        .news-card {
            background-color: var(--white);
            padding: 1.5rem;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow);
        }

        .news-card h3 {
            color: var(--primary-color);
            margin-bottom: 1rem;
        }

        .news-card p {
            color: #666;
            font-size: 0.9rem;
        }

        /* Footer */
        footer {
            background-color: var(--dark-color);
            color: var(--white);
            padding: 3rem 2rem;
            text-align: center;
        }

        .footer-links {
            display: flex;
            justify-content: center;
            gap: 2rem;
            margin-bottom: 2rem;
        }

        .footer-links a {
            color: var(--white);
            text-decoration: none;
        }

        .footer-links a:hover {
            text-decoration: underline;
        }

        .social-icons {
            display: flex;
            justify-content: center;
            gap: 1rem;
        }

        .social-icons a {
            color: var(--white);
            font-size: 1.5rem;
        }

        /* Responsive */
        @media (max-width: 768px) {
            .header-container {
                flex-direction: column;
                gap: 1rem;
            }

            nav ul {
                margin-top: 1rem;
            }

            nav ul li {
                margin: 0 0.5rem;
            }

            .hero h1 {
                font-size: 2.2rem;
            }

            .hero p {
                font-size: 1rem;
            }

            .features {
                flex-direction: column;
                gap: 2rem;
            }
        }

/********************/
        .circle-container {
            background: url('file:///home/adminbmpc/Documents/domaines/www/iaecolo/DONNEES/img/fond1.png');
            top: 10%;
            position: relative;
            width: 800px;
            height: 800px;
            border-radius: 50%;
            background-color: #dff;
            box-shadow: 0 0 20px rgba(0, 0, 0, 0.1);
        }
        .button {
            position: absolute;
            width: 80px;
            height: 80px;
            border-radius: 50%;
            background-color: #4CAF50;
            color: white;
            border: none;
            cursor: pointer;
            font-size: 16px;
            display: flex;
            justify-content: center;
            align-items: center;
            box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
            transition: background-color 0.3s, transform 0.3s;
        }
        .button:hover {
            background-color: #45a049;
            transform: scale(1.1);
        }
        .center-button {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 100px;
            height: 100px;
            background-color: #f44336;
            font-size: 18px;
            z-index: 10;
        }