:root {
            --primary-blue: #1a73e8;
            --light-blue: #4285f4;
            --accent-yellow: #fbbc05;
            --accent-mint: #34a853;
            --off-white: #f8f9fa;
            --light-gray: #dadce0;
            --text-dark: #202124;
            --text-light: #5f6368;
        }

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

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

        h1, h2, h3, h4 {
            font-weight: 600;
            line-height: 1.3;
        }

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* Header */
        header {
            background-color: white;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
            position: sticky;
            top: 0;
            z-index: 100;
        }

        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
        }

        .logo {
            font-size: 24px;
            font-weight: 700;
            color: var(--primary-blue);
        }

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

        nav ul li {
            margin-left: 30px;
        }

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

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

        .cta-button {
            background-color: var(--accent-yellow);
            color: white;
            border: none;
            padding: 10px 20px;
            border-radius: 30px;
            font-weight: 600;
            cursor: pointer;
            transition: background-color 0.3s;
            display: inline-flex;
            align-items: center;
        }

        .cta-button:hover {
            background-color: #e6a800;
        }

        .cta-button::before {
            content: "🎯";
            margin-right: 8px;
        }

        /* Hero Section */
        .hero {
            background-color: var(--primary-blue);
            color: white;
            padding: 80px 0;
            text-align: center;
        }

        .hero h1 {
            font-size: 42px;
            margin-bottom: 20px;
        }

        .hero p {
            font-size: 20px;
            max-width: 700px;
            margin: 0 auto 30px;
        }

        .hero-cta {
            background-color: white;
            color: var(--primary-blue);
            border: none;
            padding: 15px 30px;
            border-radius: 30px;
            font-size: 18px;
            font-weight: 700;
            cursor: pointer;
            transition: all 0.3s;
        }

        .hero-cta:hover {
            background-color: var(--light-gray);
        }

        .hero-subtext {
            font-size: 14px;
            margin-top: 15px;
            opacity: 0.8;
        }

        /* Sections générales */
        section {
            padding: 80px 0;
        }

        .section-title {
            text-align: center;
            margin-bottom: 50px;
            font-size: 32px;
        }

        /* Bloc 1 - Comment ça marche */
        .how-it-works {
            background-color: var(--off-white);
        }

        .steps {
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 30px;
        }

        .step {
            flex: 1;
            min-width: 250px;
            text-align: center;
            padding: 30px 20px;
            background-color: white;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
        }

        .step-icon {
            font-size: 40px;
            margin-bottom: 20px;
        }

        .step h3 {
            margin-bottom: 15px;
            color: var(--primary-blue);
        }

        .testimonial {
            text-align: center;
            margin-top: 50px;
            font-style: italic;
            padding: 20px;
            background-color: white;
            border-radius: 10px;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
        }

        /* Bloc 2 - Pourquoi choisir MNTC */
        .why-choose-us {
            background-color: white;
        }

        .benefits {
            max-width: 800px;
            margin: 0 auto;
        }

        .benefit-item {
            display: flex;
            align-items: flex-start;
            margin-bottom: 25px;
        }

        .benefit-icon {
            font-size: 24px;
            margin-right: 15px;
            color: var(--accent-mint);
            flex-shrink: 0;
        }

        .benefit-text h3 {
            margin-bottom: 5px;
        }

        .benefit-subtext {
            margin-top: 30px;
            text-align: center;
            color: var(--text-light);
            font-style: italic;
        }

        /* Bloc 3 - Témoignages */
        .testimonials {
            background-color: var(--off-white);
        }

        .testimonial-cards {
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 30px;
        }

        .testimonial-card {
            flex: 1;
            min-width: 250px;
            background-color: white;
            border-radius: 10px;
            padding: 30px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
        }

        .testimonial-card p {
            font-style: italic;
            margin-bottom: 15px;
        }

        .testimonial-author {
            font-weight: 600;
            color: var(--primary-blue);
        }

        .testimonials-cta {
            text-align: center;
            margin-top: 40px;
        }

        /* Bloc 4 - Nos offres */
        .offers {
            background-color: white;
        }

        .offer-cards {
            display: flex;
            justify-content: center;
            gap: 30px;
            flex-wrap: wrap;
        }

        .offer-card {
            background-color: var(--off-white);
            border-radius: 10px;
            padding: 30px;
            text-align: center;
            width: 300px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
        }

        .offer-card h3 {
            color: var(--primary-blue);
            margin-bottom: 15px;
        }

        .offer-price {
            font-size: 28px;
            font-weight: 700;
            margin: 20px 0;
            color: var(--text-dark);
        }

        .offer-description {
            margin-bottom: 20px;
            color: var(--text-light);
        }

        .offer-button {
            background-color: var(--primary-blue);
            color: white;
            border: none;
            padding: 10px 20px;
            border-radius: 30px;
            font-weight: 600;
            cursor: pointer;
            transition: background-color 0.3s;
        }

        .offer-button:hover {
            background-color: var(--light-blue);
        }

        .offers-cta {
            text-align: center;
            margin-top: 40px;
        }

        /* Bloc 5 - CTA final */
        .final-cta {
            background-color: var(--primary-blue);
            color: white;
            text-align: center;
            padding: 80px 0;
        }

        .final-cta h2 {
            font-size: 36px;
            margin-bottom: 20px;
        }

        .final-cta p {
            font-size: 18px;
            max-width: 700px;
            margin: 0 auto 30px;
        }

        .final-cta-button {
            background-color: white;
            color: var(--primary-blue);
            border: none;
            padding: 15px 30px;
            border-radius: 30px;
            font-size: 18px;
            font-weight: 700;
            cursor: pointer;
            transition: all 0.3s;
        }

        .final-cta-button:hover {
            background-color: var(--light-gray);
        }

        .final-subtext {
            font-size: 14px;
            margin-top: 20px;
            opacity: 0.8;
        }

        /* Footer */
        footer {
            background-color: var(--text-dark);
            color: white;
            padding: 50px 0 20px;
        }

        .footer-container {
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 30px;
        }

        .footer-logo {
            font-size: 24px;
            font-weight: 700;
            margin-bottom: 15px;
        }

        .footer-links {
            display: flex;
            flex-direction: column;
        }

        .footer-links a {
            color: white;
            text-decoration: none;
            margin-bottom: 10px;
            transition: opacity 0.3s;
        }

        .footer-links a:hover {
            opacity: 0.8;
        }

        .footer-contact {
            display: flex;
            flex-direction: column;
        }

        .footer-contact p {
            margin-bottom: 10px;
        }

        .footer-bottom {
            text-align: center;
            margin-top: 40px;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 14px;
        }

        /* Responsive */
        @media (max-width: 768px) {
            .header-container {
                flex-direction: column;
                padding: 15px 0;
            }

            nav ul {
                margin: 20px 0;
            }

            .hero h1 {
                font-size: 32px;
            }

            .hero p {
                font-size: 18px;
            }

            .steps, .testimonial-cards, .offer-cards {
                flex-direction: column;
                align-items: center;
            }

            .step, .testimonial-card, .offer-card {
                width: 100%;
                max-width: 400px;
            }

            .footer-container {
                flex-direction: column;
                text-align: center;
            }
        }

        /* Styles pour la nouvelle section offre */
        .offer-card.highlight {
            position: relative;
            border: 2px solid var(--primary-blue);
            transform: scale(1.05);
        }

        .offer-badge {
            position: absolute;
            top: -15px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--accent-yellow);
            color: white;
            padding: 5px 15px;
            border-radius: 20px;
            font-size: 14px;
            font-weight: 700;
        }

        .offer-features {
            margin: 20px 0;
            text-align: left;
        }

        .feature {
            margin: 10px 0;
            font-size: 14px;
        }

        .offer-pricing {
            margin: 25px 0;
            padding: 20px;
            background: rgba(26, 115, 232, 0.05);
            border-radius: 10px;
        }

        .pricing-text {
            font-size: 16px;
            margin-bottom: 10px;
        }

        .offer-price {
            font-size: 42px;
            font-weight: 800;
            color: var(--primary-blue);
            margin: 10px 0;
        }

        .pricing-details {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 10px;
        }

        .pricing-note {
            font-size: 12px;
            color: var(--text-light);
            font-style: italic;
        }

        /* Styles pour la gestion RIB */
        #manual-rib-section, #upload-rib-section {
            margin-top: 20px;
            padding: 20px;
            border: 1px solid var(--light-gray);
            border-radius: 10px;
        }