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

        body {
            font-family: 'Montserrat', sans-serif;
            color: #333;
            line-height: 1.6;
            scroll-behavior: smooth;
        }

        /* Header & Navigation */
        header {
            background: linear-gradient(135deg, #1e3a8a 0%, #3b82f6 100%);
            color: white;
            padding: 1rem 0;
            position: fixed;
            width: 100%;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
        }

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

        .logo-container {
            display: flex;
            align-items: center;
            gap: 1rem;
        }

        .logo {
            width: 76px;
            height: 76px;
            background: white;
            border-radius: 50%;
            padding: 10px;
        }

        .brand-name {
            font-size: 1.5rem;
            font-weight: 700;
            letter-spacing: 1px;
        }

        nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }

        nav a {
            color: white;
            text-decoration: none;
            font-weight: 500;
            transition: all 0.3s;
            padding: 0.5rem 1rem;
            border-radius: 5px;
        }

        nav a:hover {
            background: rgba(255,255,255,0.2);
        }

        /* Hero Section with Image */
        /* https://netservice.ad4store.com/wp-content/uploads/2025/10/centre-commercial.png */
        /* https://images.unsplash.com/photo-1581578731548-c64695cc6952 */
        #accueil {
            position: relative;
            color: white;
            padding: 180px 2rem 100px;
            margin-top: 80px;
            background: linear-gradient(135deg, rgba(30, 58, 138, 0.85) 0%, rgba(59, 130, 246, 0.85) 100%),
                        url('https://netservice.ad4store.com/wp-content/uploads/2025/10/centre-commercial.png?q=80&w=2000') center/cover;
            background-attachment: fixed;
        }

        .hero-content {
            max-width: 1200px;
            margin: 0 auto;
            text-align: center;
        }

        h1 {
            font-size: 3.5rem;
            margin-bottom: 1.5rem;
            font-weight: 700;
            line-height: 1.2;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
        }

        .hero-subtitle {
            font-size: 1.2rem;
            margin-bottom: 2rem;
            font-weight: 300;
            line-height: 1.8;
            max-width: 900px;
            margin-left: auto;
            margin-right: auto;
        }

        .cta-button {
            display: inline-block;
            background: #fff;
            color: #1e3a8a;
            padding: 1.2rem 3rem;
            border-radius: 50px;
            text-decoration: none;
            font-weight: 700;
            font-size: 1.1rem;
            transition: all 0.3s;
            box-shadow: 0 4px 15px rgba(0,0,0,0.3);
            margin-top: 2rem;
        }

        .cta-button:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 25px rgba(0,0,0,0.4);
        }

        /* Presentation Section with Images */
        .presentation-section {
            background: white;
            padding: 80px 2rem;
        }

        .container {
            max-width: 1400px;
            margin: 0 auto;
        }

        .presentation-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 4rem;
            align-items: center;
            margin-bottom: 4rem;
        }

        .presentation-image {
            width: 100%;
            height: 500px;
            object-fit: cover;
            border-radius: 20px;
            box-shadow: 0 10px 40px rgba(0,0,0,0.1);
        }

        .presentation-text h2 {
            font-size: 2.5rem;
            margin-bottom: 1.5rem;
            color: #1e3a8a;
        }

        .presentation-text p {
            font-size: 1.1rem;
            line-height: 1.8;
            color: #555;
            margin-bottom: 1rem;
        }

        /* Clientèle Section */
        .clientele-section {
            background: #f8fafc;
            padding: 80px 2rem;
        }

        h2 {
            font-size: 2.5rem;
            margin-bottom: 1rem;
            color: #1e3a8a;
            text-align: center;
        }

        .section-subtitle {
            text-align: center;
            font-size: 1.2rem;
            color: #666;
            margin-bottom: 3rem;
            font-weight: 300;
        }

        .clientele-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 2rem;
            margin: 3rem 0;
        }

        .clientele-card {
            background: white;
            padding: 2.5rem;
            border-radius: 15px;
            text-align: center;
            transition: all 0.3s;
            border: 2px solid #e2e8f0;
            box-shadow: 0 4px 15px rgba(0,0,0,0.05);
        }

        .clientele-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 15px 40px rgba(0,0,0,0.15);
            border-color: #3b82f6;
        }

        .clientele-icon {
            font-size: 3rem;
            margin-bottom: 1rem;
        }

        .clientele-card h3 {
            color: #1e3a8a;
            margin-bottom: 1rem;
            font-size: 1.3rem;
        }

        .clientele-card p {
            color: #666;
            font-size: 1rem;
        }

        /* Logos clients */
        .clients-section {
            background: white;
            padding: 60px 2rem;
        }

        .clients-logos {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 3rem;
            flex-wrap: wrap;
            margin: 3rem 0;
            padding: 3rem;
            background: #f8fafc;
            border-radius: 20px;
        }

        .client-logo {            
            background: white;
            border-radius: 10px;
            box-shadow: 0 4px 15px rgba(0,0,0,0.08);
            width: 295px;
            height: 200px;
        }

        .client-logo img {
            width: 180px;
        }


        .client-logo:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 25px rgba(0,0,0,0.15);
        }

        .goussainville {
            line-height: 220px;
            text-align: center;
        }

        .rouge {
            line-height: 283px;
            text-align: center;
        }

        .servair {
            line-height: 220px;
            text-align: center;
        }

        .vidal {
            text-align: center;
        }
        
        .vidal img {
                margin-top: 12px;
        }
        
        .foncia {
            text-align: center;
        }

        .autourdesaveur {
            text-align: center;
        }

        .eco-certifications {
            text-align: center;
        }

        /* Services Section with Images */
        #services {
            background: linear-gradient(135deg, #1e3a8a 0%, #3b82f6 100%);
            padding: 100px 2rem;
            color: white;
        }

        .mentions {
            background: linear-gradient(135deg, #1e3a8a 0%, #3b82f6 100%);
            padding: 100px 2rem;
        }

        .mentions h1 {
            color:white;
            text-align: center;
            font-size: 2.5rem;
        }

        .mentions h2 {
            font-size: 1.5rem;
            text-align: left;
        }

        .mentions ul {
            list-style: none;
            max-width: 800px;
            margin: 0 auto;
        }

        .mentions li {
            padding: 0.8rem 0;
            padding-left: 2rem;
            position: relative;
            font-size: 1.05rem;
        }

        .mentions li:before {
            content: "✓";
            position: absolute;
            left: 0;
            color: #3b82f6;
            font-weight: bold;
            font-size: 1.2rem;
        }

        .mentions .cta-section {
            text-align: left !important;
        }

        #services h2 {
            color: white;
        }

        #services .section-subtitle {
            color: rgba(255,255,255,0.9);
        }

        .services-intro {
            text-align: center;
            max-width: 900px;
            margin: 0 auto 4rem;
            font-size: 1.2rem;
            line-height: 1.8;
        }

        .services-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
            gap: 3rem;
            margin-top: 4rem;
        }

        .service-card {
            background: white;
            padding: 0;
            border-radius: 20px;
            box-shadow: 0 10px 40px rgba(0,0,0,0.2);
            overflow: hidden;
            transition: all 0.4s;
        }

        .service-card:hover {
            transform: translateY(-15px);
            box-shadow: 0 20px 60px rgba(0,0,0,0.3);
        }

        .service-image {
            width: 100%;
            height: 250px;
            object-fit: cover;
        }

        .service-content {
            padding: 2.5rem;
        }

        .service-card h3 {
            color: #1e3a8a;
            font-size: 1.5rem;
            margin-bottom: 1.5rem;
            padding-bottom: 1rem;
            border-bottom: 3px solid #3b82f6;
        }

        .service-card ul {
            list-style: none;
        }

        .service-card li {
            padding: 0.8rem 0;
            padding-left: 1.8rem;
            position: relative;
            color: #555;
            line-height: 1.6;
        }

        .service-card li:before {
            content: "✓";
            position: absolute;
            left: 0;
            color: #3b82f6;
            font-weight: bold;
            font-size: 1.2rem;
        }

        /* RSE Section */
        #rse {
            background: white;
            padding: 100px 2rem;
        }

        .rse-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
            gap: 3rem;
            margin-top: 4rem;
        }

        .rse-card {
            background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
            padding: 3rem;
            border-radius: 20px;
            border: 2px solid #cbd5e1;
            transition: all 0.3s;
        }

        .rse-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 40px rgba(0,0,0,0.1);
            border-color: #3b82f6;
        }

        .rse-card h3 {
            font-size: 1.6rem;
            margin-bottom: 1.5rem;
            color: #1e3a8a;
        }

        .rse-card p {
            color: #555;
            line-height: 1.8;
            margin-bottom: 1rem;
        }

        .certifications {
            display: flex;
            gap: 1rem;
            margin: 2rem 0;
            flex-wrap: wrap;
        }

        .cert-badge {
            background: linear-gradient(135deg, #1e3a8a 0%, #3b82f6 100%);
            color: white;
            padding: 0.8rem 1.8rem;
            border-radius: 30px;
            font-weight: 700;
            font-size: 1rem;
            box-shadow: 0 4px 15px rgba(30, 58, 138, 0.3);
        }

        .values-list {
            list-style: none;
        }

        .values-list li {
            padding: 1.2rem 0;
            border-bottom: 2px solid #cbd5e1;
            color: #555;
        }

        .values-list li:last-child {
            border-bottom: none;
        }

        .values-list strong {
            color: #1e3a8a;
            font-size: 1.1rem;
            display: block;
            margin-bottom: 0.3rem;
        }

        /* Contact Section */
 
        #contact {
            background: linear-gradient(135deg, #1e3a8a 0%, #3b82f6 100%);
            padding: 100px 2rem;
            color: white;
        }

        #contact h2 {
            color: white;
        }

        .contact-reasons {
            background: white;
            padding: 2rem;
            border-radius: 15px;
            margin-bottom: 3rem;
            color: #333;
        }

        .contact-reasons h3 {
            color: #1e3c72;
            text-align: center;
            margin-bottom: 1.5rem;
            font-size: 1.5rem;
        }

        .contact-reasons ul {
            list-style: none;
            max-width: 800px;
            margin: 0 auto;
        }

        .contact-reasons li {
            padding: 0.8rem 0;
            padding-left: 2rem;
            position: relative;
            font-size: 1.05rem;
        }

        .contact-reasons li:before {
            content: "✓";
            position: absolute;
            left: 0;
            color: #4caf50;
            font-weight: bold;
            font-size: 1.3rem;
        }

        .contact-form {
            max-width: 700px;
            margin: 0 auto;
            background: white;
            padding: 3rem;
            border-radius: 15px;
            box-shadow: 0 10px 40px rgba(0,0,0,0.2);
        }

        .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1rem;
            margin-bottom: 1.5rem;
        }

        .form-group {
            margin-bottom: 1.5rem;
        }

        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            color: #333;
            font-weight: 500;
        }

        .form-group input,
        .form-group select,
        .form-group textarea {
            width: 100%;
            padding: 0.9rem;
            border: 2px solid #e0e0e0;
            border-radius: 8px;
            font-size: 1rem;
            transition: border-color 0.3s;
            font-family: inherit;
        }

        .form-group input:focus,
        .form-group select:focus,
        .form-group textarea:focus {
            outline: none;
            border-color: #1e3c72;
        }

        .form-group textarea {
            min-height: 120px;
            resize: vertical;
        }

        .form-group-checkbox {
            display: flex;
            align-items: flex-start;
            margin: 1.5rem 0;
        }

        .form-group-checkbox input[type="checkbox"] {
            margin-right: 0.5rem;
            margin-top: 0.3rem;
        }

        .form-group-checkbox label {
            font-size: 0.9rem;
            color: #666;
        }

        .submit-btn {
            width: 100%;
            padding: 1rem;
            background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
            color: white;
            border: none;
            border-radius: 8px;
            font-size: 1.1rem;
            font-weight: bold;
            cursor: pointer;
            transition: transform 0.3s;
        }

        .submit-btn:hover {
            transform: translateY(-2px);
        }





        /* Footer */
        footer {
            background: #1a1a1a;
            color: white;
            padding: 3rem 2rem;
        }

        .footer-content {
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
        }

        .footer-section h3 {
            margin-bottom: 1rem;
            color: #4fc3f7;
        }

        .footer-section ul {
            list-style: none;
        }

        .footer-section li {
            margin-bottom: 0.5rem;
        }

        .footer-section a {
            color: #ccc;
            text-decoration: none;
            transition: color 0.3s;
        }

        .footer-section a:hover {
            color: #4fc3f7;
        }

        .footer-bottom {
            text-align: center;
            margin-top: 2rem;
            padding-top: 2rem;
            border-top: 1px solid #333;
            color: #999;
        }


        /* Animations */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

       
        /* CTA Sections */
        .cta-section {
            text-align: center;
            margin-top: 4rem;
            padding: 3rem;
            background: white;
            border-radius: 20px;
            box-shadow: 0 10px 40px rgba(0,0,0,0.1);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .presentation-grid {
                grid-template-columns: 1fr;
            }

            .contact-content {
                grid-template-columns: 1fr;
                gap: 3rem;
            }
        }

        @media (max-width: 768px) {
            nav ul {
                display: none;
            }

            h1 {
                font-size: 2.2rem;
            }

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

            h2 {
                font-size: 2rem;
            }

            .services-grid {
                grid-template-columns: 1fr;
            }

            .clientele-grid {
                grid-template-columns: 1fr;
            }

            .rse-content {
                grid-template-columns: 1fr;
            }

            .presentation-image {
                height: 300px;
            }
        }