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


        :root {
            --noir: #0B0E14;
            --blanc: #F5F7FA;
            --vert: #4DFF9A;
            --violet: #7B61FF;
            --noir-light: #1A1F2E;
        }

        body {
            font-family: 'Inter', sans-serif;
            background: linear-gradient(180deg, 
                var(--noir) 0%, 
                #0d1a1a 15%,
                #0f2020 30%,
                #0d1a1a 50%,
                #0f2020 70%,
                #0d1a1a 85%,
                var(--noir) 100%);
            background-attachment: fixed;
            color: var(--blanc);
            line-height: 1.6;
            overflow-x: hidden;
        }
        h1, h2, h3 {
            font-family: 'Space Grotesk', sans-serif;
            letter-spacing: -0.02em;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 2rem;
        }

        /* Navigation */
        nav {
            padding: 2rem 0;
            position: fixed;
            width: 100%;
            top: 0;
            z-index: 100;
            background: rgba(11, 14, 20, 0.8);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid rgba(77, 255, 154, 0.1);
        }

        nav .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .logo {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--vert);
        }

        .nav-links {
            display: flex;
            gap: 2.5rem;
            list-style: none;
        }

        .nav-links a {
            color: var(--blanc);
            text-decoration: none;
            font-weight: 500;
            transition: color 0.3s ease;
        }

        .nav-links a:hover {
            color: var(--vert);
        }

        /* Hero Section */
        .hero {
            min-height: 100vh;
            display: flex;
            align-items: center;
            padding-top: 6rem;
            position: relative;
        }

        .hero-content {
            max-width: 700px;
        }

        .hero h1 {
            font-size: 4.5rem;
            line-height: 1.1;
            margin-bottom: 2rem;
            animation: fadeInUp 0.8s ease;
        }

        .hero h1 .accent {
            color: var(--vert);
        }

        .hero p {
            font-size: 1.3rem;
            color: rgba(245, 247, 250, 0.7);
            margin-bottom: 3rem;
            animation: fadeInUp 0.8s ease 0.2s backwards;
        }

        .cta-button {
            display: inline-block;
            background: var(--vert);
            color: var(--noir);
            padding: 1rem 2.5rem;
            border-radius: 12px;
            text-decoration: none;
            font-weight: 600;
            transition: all 0.3s ease;
            animation: fadeInUp 0.8s ease 0.4s backwards;
        }

        .cta-button:hover {
            transform: scale(1.02);
            box-shadow: 0 8px 30px rgba(77, 255, 154, 0.3);
        }

        /* Scroll Indicator */
        .scroll-indicator {
            position: absolute;
            bottom: 3rem;
            left: 50%;
            transform: translateX(-50%);
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 0.5rem;
            animation: fadeInUp 0.8s ease 0.6s backwards;
        }

        .scroll-indicator span {
            font-size: 0.85rem;
            text-transform: uppercase;
            letter-spacing: 0.1em;
            color: rgba(245, 247, 250, 0.5);
        }

        .scroll-arrow {
            width: 24px;
            height: 40px;
            border: 2px solid var(--vert);
            border-radius: 12px;
            position: relative;
            opacity: 0.6;
        }

        .scroll-arrow::before {
            content: '';
            position: absolute;
            top: 8px;
            left: 50%;
            transform: translateX(-50%);
            width: 4px;
            height: 8px;
            background: var(--vert);
            border-radius: 2px;
            animation: scrollDown 2s ease-in-out infinite;
        }

        @keyframes scrollDown {
            0% {
                top: 8px;
                opacity: 1;
            }
            50% {
                top: 20px;
                opacity: 0.3;
            }
            100% {
                top: 8px;
                opacity: 1;
            }
        }

        /* Services Section */
        .services {
            padding: 8rem 0;
        }

        .section-title {
            font-size: 3rem;
            margin-bottom: 1rem;
            text-align: center;
        }

        .section-subtitle {
            text-align: center;
            color: rgba(245, 247, 250, 0.6);
            margin-bottom: 5rem;
            font-size: 1.2rem;
        }

        .services-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 2rem;
        }

        .service-card {
            background: var(--noir-light);
            padding: 3rem 2rem;
            border-radius: 16px;
            border: 1px solid rgba(77, 255, 154, 0.1);
            transition: all 0.4s ease;
        }

        .service-card:hover {
            transform: translateY(-5px);
            border-color: var(--vert);
            box-shadow: 0 10px 40px rgba(77, 255, 154, 0.1);
        }

        .service-icon {
            width: 60px;
            height: 60px;
            background: rgba(77, 255, 154, 0.1);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 1.5rem;
            font-size: 1.8rem;
        }

        .service-card h3 {
            font-size: 1.5rem;
            margin-bottom: 1rem;
            color: var(--vert);
        }

        .service-card p {
            color: rgba(245, 247, 250, 0.7);
            line-height: 1.7;
        }

        /* About Section */
        .about {
            padding: 8rem 0;
            background: var(--noir-light);
        }

        .about-content {
            max-width: 800px;
            margin: 0 auto;
            text-align: center;
        }

        .about h2 {
            font-size: 3rem;
            margin-bottom: 2rem;
        }

        .about p {
            font-size: 1.2rem;
            color: rgba(245, 247, 250, 0.7);
            margin-bottom: 1.5rem;
            line-height: 1.8;
        }

        .highlight {
            color: var(--vert);
            font-weight: 600;
        }

        /* Process Section */
        .process {
            padding: 8rem 0;
        }

        .process-steps {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 3rem;
            margin-top: 4rem;
        }

        .step {
            text-align: center;
        }

        .step-number {
            width: 80px;
            height: 80px;
            background: rgba(123, 97, 255, 0.1);
            color: var(--violet);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 2rem;
            font-weight: 700;
            margin: 0 auto 1.5rem;
            border: 2px solid var(--violet);
        }

        .step h3 {
            font-size: 1.3rem;
            margin-bottom: 1rem;
        }

        .step p {
            color: rgba(245, 247, 250, 0.6);
        }

        /* Contact Section */
        .contact {
            padding: 8rem 0;
            background: var(--noir-light);
        }

        .contact-content {
            max-width: 600px;
            margin: 0 auto;
            text-align: center;
        }

        .contact h2 {
            font-size: 3rem;
            margin-bottom: 1.5rem;
        }

        .contact p {
            font-size: 1.2rem;
            color: rgba(245, 247, 250, 0.7);
            margin-bottom: 3rem;
        }

        .contact-button {
            display: inline-block;
            background: transparent;
            color: var(--vert);
            padding: 1rem 2.5rem;
            border-radius: 12px;
            text-decoration: none;
            font-weight: 600;
            border: 2px solid var(--vert);
            transition: all 0.3s ease;
        }

        .contact-button:hover {
            background: var(--vert);
            color: var(--noir);
            transform: scale(1.02);
        }

        /* Footer */
        footer {
            padding: 3rem 0;
            text-align: center;
            border-top: 1px solid rgba(77, 255, 154, 0.1);
        }

        footer p {
            color: rgba(245, 247, 250, 0.5);
        }

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

        /* Geometric shapes background */
        .geometric-bg {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            overflow: hidden;
            z-index: -1;
            opacity: 0.03;
        }

        .shape {
            position: absolute;
            border: 1px solid var(--vert);
        }

        .shape-1 {
            width: 300px;
            height: 300px;
            border-radius: 50%;
            top: 10%;
            right: 10%;
        }

        .shape-2 {
            width: 200px;
            height: 200px;
            top: 60%;
            left: 5%;
            transform: rotate(45deg);
        }

        /* Responsive */
        @media (max-width: 768px) {
            .hero h1 {
                font-size: 3rem;
            }

            .section-title {
                font-size: 2rem;
            }

            .nav-links {
                gap: 1.5rem;
            }

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

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

    .faq-item {
        background-color: var(--noir-light);
        border-radius: 16px;
        padding: 2rem;
        margin-bottom: 1.5rem;
        border: 1px solid rgba(77, 255, 154, 0.1);
        transition: all 0.3s ease;
    }

    .faq-item:hover {
        border-color: var(--vert);
    }

    .faq-question {
        font-size: 1.3rem;
        font-weight: 600;
        color: var(--vert);
        margin-bottom: 1rem;
    }

    .faq-answer {
        color: rgba(245, 247, 250, 0.9);
    }

    /* Hamburger */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--vert);
    border-radius: 2px;
    transition: all 0.3s ease;
}

@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    .nav-links {
        position: fixed;
        top: 0;
        left: 0;          /* prendre tout l'écran */
        width: 100%;      /* largeur full */
        height: 100%;     /* hauteur full */
        background: var(--noir); 
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 2rem;
        transition: transform 0.3s ease;
        transform: translateX(100%); /* menu caché à droite */
        z-index: 200;
    }

    .nav-links.active {
        transform: translateX(0); /* menu visible */
    }

    .nav-links a {
        font-size: 2rem; /* menu plus lisible sur full screen */
    }
}


.hamburger.open span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.open span:nth-child(2) {
    opacity: 0;
}

.hamburger.open span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}