:root {
            --primary: #0056b3;
            --secondary: #ffcc00;
            --success: #28a745;
            --danger: #dc3545;
            --warning: #ffc107;
            --light: #f8f9fa;
            --dark: #343a40;
            --snel-blue: #01224c;
            --snel-yellow: #f4dc00;
            --blockchain-green: #0f9d58;
            --biometric-purple: #8e44ad;
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'poppins', Tahoma, Geneva, Verdana, sans-serif;
        }
        
        body {
            background-color: #f5f5f5;
            color: #333;
            line-height: 1.6;
        }
        
        .container {
            width: 90%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 20px;
        }
        
        header {
            background: url(assets/4-Barre\ de\ Navigation.jpg) no-repeat center center/cover;
            color: white;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .logo {
            display: flex;
            align-items: center;
        }
        
        .logo img {
            height: 60px;
            margin-right: 15px;
        }
        
        .logo h1 {
            font-size: 1.5rem;
            line-height: 1.2;
        }
        
        nav ul {
            display: flex;
            list-style: none;
            align-items: center;
        }
        
        nav ul li {
            margin-left: 20px;
        }
        
        nav ul li a {
            color: white;
            text-decoration: none;
            font-weight: 500;
            transition: color 0.3s;
            padding: 5px 10px;
            border-radius: 4px;
        }
        
        nav ul li a:hover {
            color: var(--snel-yellow);
            background: rgba(255,255,255,0.1);
        }
        
nav .btn{
    background-image: linear-gradient(45deg, #f4b806, #f4e000) ;
}

        .hero {
            color: white;
            padding: 0;
            text-align: center;
            position: relative;
            background-size: cover;
            background-position: center;
            height: 80vh;
        }
        
        /* Hero slider */
        .hero-slider {
            position: relative;
            overflow: hidden;
            min-height: 420px;
            display: block;
        }
        .slide {
            position: absolute;
            height: 83vh;
            inset: 0;
            display: flex;
            align-items: center;
            transition: opacity 0.6s ease, transform 0.6s ease;
            opacity: 0;
            transform: translateX(20px);
            background-size: cover;
            background-position: center;
            color: white;
        }

          .slide-1{
            /* Dégradé radial fort en bas à droite + image en arrière-plan (visible en haut à gauche) */
            background-image: url('assets/image-01.jpg');
            background-position: left bottom, right top;
            background-repeat: no-repeat, no-repeat;
            background-size: 55% 100%, cover;
        }


        .slide-2{
            /* Dégradé radial fort en bas à droite + image en arrière-plan (visible en haut à gauche) */
            background-image: url('assets/image-02.jpg');
            background-position: right bottom, left top;
            background-repeat: no-repeat, no-repeat;
            background-size: 55% 100%, cover;
        }

        .slide-3{
            /* Dégradé radial fort en bas au centre + image en arrière-plan (visible en haut) */
            background-image: url('assets/image-03.jpg');
            background-position: left bottom, right top;
            background-repeat: no-repeat, no-repeat;
            background-size: 55% 100%, cover;
        }

        .slide.active {
            opacity: 1;
            transform: translateX(0);
            position: relative;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 900px;
            margin-left: 0;
            margin-right: auto;
            padding-left: 120px;
            text-align: left;
        }
        .slide-prev, .slide-next {
            position: absolute;
            top: 50%;
            transform: translateY(-50%);
            background: rgba(0,0,0,0.35);
            color: #fff;
            border: none;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            cursor: pointer;
            font-size: 1.6rem;
            display: flex;
            align-items: center;
            justify-content: center;
            z-index: 5;
        }
        .slide-prev { left: 18px; }
        .slide-next { right: 18px; }

        .slider-dots {
            position: absolute;
            left: 50%;
            transform: translateX(-50%);
            bottom: 18px;
            display: flex;
            gap: 8px;
            z-index: 5;
        }
        .slider-dots .slider-dot {
            width: 10px;
            height: 10px;
            background: white;
            border-radius: 50%;
            border: none;
            cursor: pointer;
            transition: background 0.2s, transform 0.2s;
        }
        .slider-dots .slider-dot.active {
            background: var(--snel-yellow);
            transform: scale(1.2);
        }
        
        .hero-content .btn { margin-left: 0; }
        
        .hero h2 {
            font-size: 50pt;
            margin-bottom: 20px;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
            text-align: left;
        }
        
        .hero p {
            font-size: 14pt;
            margin-bottom: 30px;
            text-shadow: 1px 1px 2px rgba(0,0,0,0.5);
            text-align: left;
        }
        
        .btn {
            display: inline-block;
            background: var(--snel-yellow);
            color: var(--dark);
            padding: 12px 30px;
            border: none;
            border-radius: 3px;
            font-size: 10pt;
            font-weight: 600;
            cursor: pointer;
            text-decoration: none;
            transition: all 0.3s;
            box-shadow: 0 4px 6px rgba(0,0,0,0.1);
        }
        
        .btn:hover {
            background: #e6b800;
            transform: translateY(-3px);
            box-shadow: 0 6px 8px rgba(0,0,0,0.15);
        }
        
        .btn-primary {
            background: var(--snel-blue);
            color: white;
        }
        
        .btn-primary:hover {
            background: #004494;
        }
        
        .btn-large {
            padding: 16px 40px;
            font-size: 1.2rem;
        }
        
        .video-demo {
            padding: 80px 0;
            background: white;
        }
        
        .video-container {
            position: relative;
            width: 100%;
            max-width: 800px;
            margin: 0 auto;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(0,0,0,0.2);
        }
        
        .video-placeholder {
            width: 100%;
            height: 450px;
            background: linear-gradient(135deg, #1e3c72, #2a5298);
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            color: white;
            text-align: center;
        }
        
        .video-placeholder .play-icon {
            font-size: 4rem;
            margin-bottom: 20px;
        }
        
        .benefits {
            padding: 80px 0;
            background: #f9f9f9;
        }
        
        .benefits-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
        }
        
        .benefit-card {
            display: flex;
            background: white;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            transition: transform 0.3s;
        }
        
        .benefit-card:hover {
            transform: translateY(-5px);
        }
        .benefit-title h3{
            font-size: 24pt;
            font-weight: 500;
            text-align: center;
            margin-bottom: 50px;
        }
        .benefit-number {
            display: flex;
            align-items: center;
            font-size: 2.5rem;
            font-weight: bold;
            background-color: var(--snel-yellow);
            margin-right: 20px;
            padding: 20px;
        }

        .benefit-content{
            padding: 20px;
            text-align: left;
        }
        
        .benefit-card h3 {
            color: var(--snel-blue) ;
            font-size: 16pt;
            margin-bottom: 15px;
            display: flex;
            align-items: center;
        }
        
        .benefit-card h3 .icon {
            margin-right: 10px;
            font-size: 1.5rem;
        }

        .benefit-head{
            display: flex;
            justify-content: space-between; 
            margin-bottom: 40px;
        }

        .benefit-snel h2, .benefit-snel p{
            display: flex;
            flex-direction: column;
            justify-content: left;
            text-align: left;
        }

        .benefit-snel h2:after{
            left: 5.5% !important;
            transform: none;
        }

        .benefit-head .btn{
            margin: 0;
            font-size: 14pt;
        }

        .benefit-card-snel{
            display: flex;
            flex-direction: column;
            background-color: white;
            padding: 40px;
            border-bottom: solid 4px var(--snel-yellow);
        }

        .benefit-card-snel i{
            font-size: 3rem;
            color: var(--snel-blue);
            background-color: var(--snel-yellow);
            height: 80px;
            width: 80px;
            padding-top: 15px;
            border-radius: 50%;
            margin-bottom: 20px;
        }

        .benefit-card-snel h3{
            font-size: 16pt;
            color: var(--snel-blue);
            margin-bottom: 15px;
        }

        ul.custom-list {
            list-style-type: disc;
            padding-left: 20px;
        }

        ul.custom-list li::marker {
            color: var(--snel-blue);
            font-size: 18pt;
        }

    .blockchain-benefit i {
        font-size: 2.5rem;
        height: 100px;
        width: 100px;
        padding-top: 30px;
        margin-bottom: 20px;
        border-radius: 50%;
        background-color: var(--snel-yellow);

    }

    .blockchain h3{
        font-size: 16pt;
        color: var(--snel-blue);
        margin-bottom: 15px;
    }

        .icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 1.4rem;
    height: 1.4rem;
    margin-right: 0.5rem;
    color: var(--snel-blue);
    font-size: 1.1rem;
}
        .icon svg { 
            width: 100%; height: 100%; 
        }

        .biometric {
            padding: 80px 0;
            background: white;
        }
        
        .biometric-demo {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            margin-top: 40px;
        }
        
        .biometric-method {
            text-align: center;
            border-radius: 10px;
            margin: 10px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            flex: 1;
            min-width: 250px;
            transition: transform 0.3s;
        }
        
        .biometric-method:hover {
            transform: translateY(-10px);
        }
        
        
        .biometric-visual {
            height: 200px;
            margin: 0 auto 20px;
            background-size: cover;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 3rem;
        }

        .visual-1 {
            background-image: url(assets/biometrique-img-01.jpg);
        }

        .visual-2 {
            background-image: url(assets/biometrique-img-02.jpg);
        }

        .visual-3 {
            background-image: url(assets/biometrique-img-03.jpg);
        }

             
        .biometric-visual img{
            width: 100%;
        }
        
        .biometric-steps {
            margin: 30px;
            text-align: left;
        }

        .biometric-steps h3 {
            font-size: 16pt;
            font-weight: 600;
            padding-bottom: 10px;
        }
        
        .biometric-steps ol {
            padding-top: 10px;
            padding-left: 20px;
        }
        
        .biometric-steps li {
            margin-bottom: 10px;
        }
        
        .features {
            padding: 80px 0;
            background: white;
        }
        
        .section-title {
            text-align: center;
            margin-bottom: 50px;
        }
        
        .section-title h2 {
            font-size: 2.2rem;
            font-weight: 500;
            color: var(--dark); 
            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: var(--snel-yellow);
        }
        
        .section-title p {
            color: #666;
            max-width: 700px;
            margin: 25px auto 0;
            font-size: 1.1rem;
        }
        
        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
        }
        
        .feature-card {
            background: var(--light);
            border-radius: 10px;
            padding: 30px;
            text-align: center;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            transition: transform 0.3s, box-shadow 0.3s;
            border-bottom: 4px solid var(--snel-yellow);
        }
        
        .feature-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0,0,0,0.1);
        }
        
     i {
            font-size: 3rem;
            color: var(--snel-blue);
            margin-bottom: 20px;
        }
        
        .feature-card h3 {
            margin-bottom: 15px;
            color: var(--dark);
            font-size: 1.4rem;
        }
        
        .feature-card p {
            color: #666;
        }
        
        .ai-assistant {
            padding: 80px 0;
            background: linear-gradient(135deg, #f5f7fa, #c3cfe2);
        }
        
        .ai-container {
            background: white;
            border-radius: 15px;
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(0,0,0,0.1);
            max-width: 800px;
            margin: 0 auto;
        }
        
        .ai-header {
            background: var(--snel-blue);
            color: white;
            padding: 20px;
            text-align: center;
        }
        
        .ai-header h3 {
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
        }
        
        .ai-header .ai-icon {
            margin-right: 10px;
            font-size: 1.8rem;
        }
        
        .ai-chat {
            padding: 20px;
            height: 300px;
            overflow-y: auto;
            border-bottom: 1px solid #eee;
        }
        
        .message {
            margin-bottom: 15px;
            padding: 12px 15px;
            border-radius: 18px;
            max-width: 80%;
        }
        
        .bot-message {
            background: #f0f2f5;
            border-bottom-left-radius: 5px;
            align-self: flex-start;
        }
        
        .user-message {
            background: var(--snel-blue);
            color: white;
            border-bottom-right-radius: 5px;
            margin-left: auto;
        }
        
        .ai-input-container {
            display: flex;
            padding: 15px;
        }
        
        .ai-input {
            flex: 1;
            padding: 12px 15px;
            border: 1px solid #ddd;
            border-radius: 25px;
            font-size: 1rem;
            outline: none;
        }
        
        .ai-send {
            background: var(--snel-blue);
            color: white;
            border: none;
            border-radius: 50%;
            width: 45px;
            height: 45px;
            margin-left: 10px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: background 0.3s;
        }
        
        .ai-send:hover {
            background: #004494;
        }
        
        .blockchain {
            padding: 80px 0;
            background: white;
        }
        
        .blockchain-slider {
            position: relative;
            max-width: 800px;
            margin: 40px auto;
            overflow: hidden;
            border-radius: 10px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.1);
        }
        
        .slides {
            display: flex;
            transition: transform 0.5s ease-in-out;
        }
        
        .slide {
            position: absolute;
            inset: 0;
            display: flex;
            align-items: center;
            transition: opacity 0.6s ease, transform 0.6s ease;
            opacity: 0;
            transform: translateX(20px);
            background-size: cover;
            background-position: center;
            color: white;
        }
        
        .slide.active {
            opacity: 1;
            transform: translateX(0);
            position: relative;
        }
        
        .slide-icon {
            font-size: 4rem;
            margin-bottom: 20px;
            color: var(--blockchain-green);
        }
        
        .slide h3 {
            color: var(--snel-blue);
            margin-bottom: 15px;
            font-size: 1.5rem;
        }
        
        .slider-nav {
            display: flex;
            justify-content: center;
            margin-top: 20px;
        }
        
        .slider-dot {
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: #ddd;
            margin: 0 5px;
            cursor: pointer;
            transition: background 0.3s;
        }
        
        .slider-dot.active {
            background: var(--blockchain-green);
        }
        
        .blockchain-benefits {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 20px;
            margin-top: 40px;
        }
        
        .blockchain-benefit {
            text-align: center;
            padding: 20px;
        }
        
        .blockchain-benefit .icon {
            font-size: 2.5rem;
            color: var(--blockchain-green);
            margin-bottom: 15px;
        }
        
        .qr-system {
            padding: 80px 0;
            background: #f9f9f9;
        }
        
        .qr-content {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }
        
        .qr-info {
            flex: 1;
            min-width: 300px;
            padding-right: 30px;
        }
        
        .qr-info h3 {
            font-size: 1.8rem;
            color: var(--snel-blue);
            margin-bottom: 20px;
        }
        
        .qr-info ul {
            list-style: none;
            margin: 20px 0;
        }
        
        .qr-info ul li {
            padding: 10px 0;
            border-bottom: 1px solid #eee;
            display: flex;
            align-items: center;
        }
        
        .qr-info ul li:before {
            content: "▶";
            color: var(--snel-blue);
            margin-right: 10px;
            font-size: 0.8rem;
        }
        
        .qr-visual {
            flex: 1;
            min-width: 300px;
            text-align: center;
            background: white;
            padding: 30px;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        }
        
        .qr-code-container {
            width: 200px;
            height: 200px;
            margin: 0 auto 20px;
            border: 1px solid #ddd;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: white;
            padding: 10px;
        }
        
        #qrcode {
            width: 180px;
            height: 180px;
        }
        
        .qr-input {
            width: 100%;
            padding: 12px;
            margin: 15px 0;
            border: 1px solid #ddd;
            border-radius: 5px;
            font-size: 1rem;
        }
        
        .subscription-plans {
            padding: 80px 0;
            background: white;
        }
        
        .plans-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
        }
        
        .plan-card {
            background: white;
            border-radius: 10px;
            padding: 40px 30px;
            text-align: center;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            position: relative;
            overflow: hidden;
            transition: transform 0.3s;
            border: 2px solid #f0f0f0;
        }
        
        .plan-card:hover {
            transform: translateY(-5px);
        }
        
        .plan-card.popular {
            border: 3px solid var(--snel-yellow);
            transform: scale(1.05);
        }
        
        .plan-card.popular:hover {
            transform: scale(1.05) translateY(-5px);
        }
        
        .popular-badge {
            position: absolute;
            top: 0;
            right: 0;
            background: var(--snel-yellow);
            color: var(--dark);
            padding: 8px 20px;
            font-size: 0.9rem;
            font-weight: bold;
            border-bottom-left-radius: 10px;
        }
        
        .plan-card h3 {
            font-size: 1.6rem;
            margin-bottom: 15px;
            color: var(--snel-blue);
        }
        
        .price {
            font-size: 2.8rem;
            font-weight: bold;
            margin: 20px 0;
            color: var(--dark);
        }
        
        .price span {
            font-size: 1rem;
            color: #666;
        }
        
        .plan-features {
            list-style: none;
            margin: 25px 0;
            text-align: left;
        }
        
        .plan-features li {
            padding: 10px 0;
            border-bottom: 1px solid #eee;
            display: flex;
            align-items: center;
        }
        
        .plan-features li:before {
            content: "✓";
            color: var(--success);
            margin-right: 10px;
            font-weight: bold;
            font-size: 1.2rem;
        }
        
        .payment-methods {
            padding: 80px 0;
            background: #f9f9f9;
        }
        
        .payment-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 20px;
        }
        
        .payment-card {
            background: var(--light);
            border-radius: 10px;
            padding: 30px 20px;
            text-align: center;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            min-height: 180px;
            transition: transform 0.3s;
            border: 1px solid #eaeaea;
        }
        
        .payment-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        }
        
        .payment-icon {
            font-size: 3rem;
            margin-bottom: 15px;
        }
        
        .payment-card h3 {
            margin-bottom: 10px;
            color: var(--snel-blue);
        }
        
        .demo-section {
            padding: 80px 0;
            background: var(--snel-blue);
            color: white;
            text-align: center;
        }
        
        .demo-section h2 {
            font-size: 2.5rem;
            margin-bottom: 20px;
        }
        
        .demo-section p {
            font-size: 1.2rem;
            max-width: 700px;
            margin: 0 auto 30px;
        }
        
        footer {
            background: black;
            color: white;
            padding: 50px 0 20px;
        }
        
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 30px;
            margin-bottom: 30px;
        }
        
        .footer-column h3 {
            margin-bottom: 20px;
            font-size: 1.2rem;
            color: var(--snel-yellow);
        }
        
        .footer-column ul {
            list-style: none;
        }
        
        .footer-column ul li {
            margin-bottom: 10px;
        }
        
        .footer-column ul li a {
            color: #ccc;
            text-decoration: none;
            transition: color 0.3s;
        }
        
        .footer-column ul li a:hover {
            color: white;
        }
        
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid #444;
            color: #aaa;
            font-size: 0.9rem;
        }
        
        @media (max-width: 768px) {
            .header-content {
                flex-direction: column;
            }
            
            nav ul {
                margin-top: 15px;
                flex-wrap: wrap;
                justify-content: center;
            }
            
            nav ul li {
                margin: 5px;
            }
            
            .hero h2 {
                font-size: 2rem;
            }
            
            .plan-card.popular {
                transform: scale(1);
            }
            
            .plan-card.popular:hover {
                transform: translateY(-5px);
            }
            
            .qr-content {
                flex-direction: column;
            }
            
            .qr-info {
                padding-right: 0;
                margin-bottom: 30px;
            }
            
            .biometric-demo {
                flex-direction: column;
            }
        }