:root {
            --bleu-fonce: #02325E;
            --vert: #07A782;
            --vert-fonce: #067a60;
            --bleu-clair: #5686A5;
            --blanc: #fff;
            --gris-fond: #f7f9fa;
            --rouge-fonce: #940a28;
            --rouge: #c21138;
            --font-main: 'Montserrat', Arial, sans-serif;
        }

        * {
            box-sizing: border-box;
        }

        body {
            font-family: var(--font-main);
            color: var(--bleu-fonce);
            background: var(--gris-fond);
            margin: 0;
            line-height: 1.6;
        }

        header {
            background: var(--blanc);
            color: var(--bleu-fonce);
            box-shadow: 0 2px 16px rgba(2,50,94,0.08);
            position: sticky;
            top: 0;
            z-index: 100;
            transition: box-shadow 0.2s;
        }

        .logo-nav {
            display: flex;
            align-items: center;
            justify-content: space-between;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0.9rem 2rem;
            height: auto;
            min-height: 70px;
        }

        .logo {
            height: 48px;
            margin-right: 1.5rem;
        }

        .menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.8rem;
            color: var(--bleu-fonce);
            cursor: pointer;
            padding: 0.5rem;
        }

        nav ul {
            display: flex;
            gap: 2.2rem;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        nav a {
            color: var(--bleu-fonce);
            text-decoration: none;
            font-weight: 600;
            font-size: 1.08rem;
            padding: 0.5rem 0.7rem;
            border-radius: 8px;
            transition: background 0.2s, color 0.2s;
        }

        nav a:hover,
        nav a:focus {
            background: var(--bleu-clair);
            color: var(--blanc);
            outline: none;
        }

        .header-cta {
            background: var(--vert);
            color: var(--blanc);
            border-radius: 24px;
            padding: 0.7rem 1.6rem;
            font-weight: 700;
            font-size: 1.05rem;
            margin-left: 2rem;
            box-shadow: 0 2px 8px rgba(2,50,94,0.08);
            text-decoration: none;
            transition: background 0.2s, box-shadow 0.2s;
            white-space: nowrap;
            display: inline-flex;
            align-items: center;
        }

        @media (max-width: 768px) {
            .logo-nav {
                padding: 1rem 1.5rem;
            }
            
            .header-cta {
                padding: 0.6rem 1.2rem;
                font-size: 0.95rem;
                margin-left: 1rem;
            }
        }

        @media (max-width: 600px) {
            .logo-nav {
                padding: 0.9rem 1rem;
            }
            
            .header-cta {
                padding: 0.55rem 1.1rem;
                font-size: 0.9rem;
                margin-left: 0.5rem;
            }
        }

        .header-cta:hover,
        .header-cta:focus {
            background: var(--bleu-fonce);
            color: var(--blanc);
            box-shadow: 0 4px 16px rgba(2,50,94,0.14);
            outline: none;
        }

        /* Section encart bug */
        .info-bug {
            position: relative;
            background: linear-gradient(120deg, var(--vert-fonce) 0%, var(--vert) 80%);
            color: var(--blanc);
            text-align: center;
            padding: 5.5rem 1rem 4.5rem 1rem;
            overflow: hidden;
        }

        .bug-info-bg {
            position: absolute;
            inset: 0;
            background: url('https://www.transparenttextures.com/patterns/cubes.png'), linear-gradient(120deg, #02325e33 0%, #5686a555 100%);
            opacity: 0.22;
            z-index: 1;
        }

        .bug-info-content-wrapper {
            position: relative;
            z-index: 2;
            max-width: 700px;
            margin: 0 auto;
        }

        .bug-info-content h2 {
            color: white;
            font-size: 2.5rem;
            margin-bottom: 20px;
            font-weight: 700;
        }

        .bug-info-desc {
            color: rgba(255, 255, 255, 0.95);
            font-size: 1.1rem;
            margin-bottom: 30px;
            line-height: 1.6;
        }

        .cta-btn2 {
            background: var(--vert);
            color: var(--blanc);
            border: none;
            padding: 1rem 2.6rem;
            border-radius: 32px;
            font-size: 1.15rem;
            font-weight: 700;
            cursor: pointer;
            margin-top: 1.5rem;
            transition: background 0.2s, box-shadow 0.2s, transform 0.12s;
            box-shadow: 0 2px 16px rgba(5,146,107);
            outline: none;
            display: inline-block;
            text-decoration: none;
        }

        .cta-info {
            background-color: white;
            color: #02325E;
            border: 2px solid white;
        }

        .cta-info:hover {
            background-color: rgba(255, 255, 255, 0.9);
            color: #05926b;
            box-shadow: 0 8px 25px rgba(7, 167, 130, 0.3);
        }

        /* Animation bordure encart bug */
        .bug-info-content {
            position: relative;
            width: fit-content;
            padding: 2rem;
            margin: 0 auto;
            z-index: 1;
        }

        .bug-info-content::before,
        .bug-info-content::after {
            content: '';
            position: absolute;
            top: -5%;
            bottom: -5%;
            left: -5%;
            right: -5%;
            z-index: 0;
            box-shadow: inset 0 0 0 2px rgba(255, 255, 255, 0.8);
            animation: clipMe 8s linear infinite;
        }

        .bug-info-content::before {
            animation-delay: -4s;
        }

        @keyframes clipMe {
            0%, 100% { 
                clip-path: polygon(0 0, 100% 0, 100% 2px, 0 2px);
            }
            25% { 
                clip-path: polygon(0 0, 2px 0, 2px 100%, 0 100%);
            }
            50% { 
                clip-path: polygon(0 calc(100% - 2px), 100% calc(100% - 2px), 100% 100%, 0 100%);
            }
            75% { 
                clip-path: polygon(calc(100% - 2px) 0, 100% 0, 100% 100%, calc(100% - 2px) 100%);
            }
        }

        /* Section Hero */
        .hero {
            position: relative;
            background: linear-gradient(120deg, var(--bleu-fonce) 0%, var(--bleu-clair) 100%);
            color: var(--blanc);
            text-align: center;
            padding: 5.5rem 1rem 4.5rem 1rem;
            overflow: hidden;
        }

        .hero-bg {
            position: absolute;
            inset: 0;
            background: url('https://www.transparenttextures.com/patterns/cubes.png'), linear-gradient(120deg, #02325e33 0%, #5686a555 100%);
            opacity: 0.22;
            z-index: 1;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 700px;
            margin: 0 auto;
        }

        .hero h1 {
            font-size: 2.8rem;
            font-weight: 800;
            margin-bottom: 1.2rem;
            letter-spacing: -1px;
        }

        .hero-desc {
            font-size: 1.25rem;
            font-weight: 400;
            margin-bottom: 2.2rem;
            color: #e3f1f8;
        }

        .cta-btn {
            background: var(--vert);
            color: var(--blanc);
            border: none;
            padding: 1rem 2.6rem;
            border-radius: 32px;
            font-size: 1.15rem;
            font-weight: 700;
            cursor: pointer;
            margin-top: 1.5rem;
            transition: background 0.2s, box-shadow 0.2s, transform 0.12s;
            box-shadow: 0 2px 16px rgba(2,50,94,0.10);
            outline: none;
            display: inline-block;
            text-decoration: none;
        }

        .cta-btn.cta-large {
            font-size: 1.22rem;
            padding: 1.1rem 3.2rem;
        }

        .cta-btn:hover,
        .cta-btn:focus {
            background: var(--bleu-fonce);
            color: var(--blanc);
            box-shadow: 0 4px 24px rgba(2,50,94,0.18);
            transform: translateY(-2px) scale(1.03);
        }

        /* Section Services */
        .services {
            background: var(--blanc);
            padding: 4rem 1rem 2.5rem 1rem;
            max-width: 1200px;
            margin: 2.5rem auto 2rem auto;
            border-radius: 24px;
            box-shadow: 0 4px 24px rgba(2,50,94,0.06);
        }

        .services h2 {
            text-align: center;
            color: var(--bleu-fonce);
            margin-bottom: 2.5rem;
            font-size: 2.1rem;
            font-weight: 800;
            letter-spacing: -0.5px;
        }

        .service-card h3, .service-card p {
            text-align: center;
        }

        .service-list {
            display: flex;
            gap: 2.5rem;
            flex-wrap: wrap;
            justify-content: center;
        }

        .service-card {
            background: var(--gris-fond);
            color: var(--bleu-fonce);
            flex: 1 1 calc(33.333% - 2rem);
            min-width: 260px;
            max-width: 340px;
            padding: 2.3rem 1.2rem 2rem 1.2rem;
            border-radius: 18px;
            margin-bottom: 1.5rem;
            box-shadow: 0 2px 16px rgba(2,50,94,0.08);
            text-align: center;
            transition: transform 0.18s, box-shadow 0.18s;
            position: relative;
            overflow: hidden;
        }

        .service-card:hover,
        .service-card:focus-within {
            transform: translateY(-6px) scale(1.03);
            box-shadow: 0 8px 36px rgba(2,50,94,0.18);
            z-index: 2;
        }

        .service-icon {
            font-size: 2.8rem;
            color: var(--vert);
            margin-bottom: 1.1rem;
            transition: color 0.18s;
        }

        .service-card:hover .service-icon,
        .service-card:focus-within .service-icon {
            color: var(--bleu-fonce);
        }

        .service-card h3 {
            font-size: 1.28rem;
            font-weight: 700;
            margin-bottom: 0.7rem;
        }

        .service-card p {
            font-size: 1.04rem;
            color: #234;
        }

        /* Section À propos */
        .apropos {
            max-width: 900px;
            margin: 3rem auto;
            background: var(--blanc);
            border-radius: 14px;
            padding: 2rem 1.5rem;
            box-shadow: 0 1px 6px rgba(2,50,94,0.03);
            text-align: center;
        }

        .apropos h2, .apropos p {
            text-align: center;
        }

        .valeurs {
            display: flex;
            gap: 1.5rem;
            justify-content: center;
            margin-top: 1.5rem;
            text-align: center;
            flex-wrap: wrap;
        }

        .valeur {
            background: var(--vert);
            color: var(--blanc);
            padding: 1rem 2rem;
            border-radius: 30px;
            font-weight: 700;
            font-size: 1.1rem;
            text-align: center;
        }

        /* Section Contact */
        .contact {
            background: var(--blanc);
            border-radius: 14px;
            max-width: 900px;
            margin: 3rem auto 2rem auto;
            padding: 2rem 1.5rem;
            box-shadow: 0 1px 6px rgba(2,50,94,0.03);
            text-align: center;
        }

        .contact h2, .contact p, .coordonnees {
            text-align: center;
        }

        form#contactForm {
            display: flex;
            flex-direction: column;
            gap: 1rem;
            margin-bottom: 2rem;
        }

        .form-row {
            display: flex;
            gap: 1rem;
        }

        .form-row.rgpd-row {
            align-items: center;
            gap: 0.5rem;
        }

        input, textarea {
            font-family: var(--font-main);
            border: 1px solid var(--bleu-clair);
            border-radius: 8px;
            padding: 0.8rem;
            font-size: 1rem;
            width: 100%;
            box-sizing: border-box;
            margin-bottom: 0.2rem;
            transition: border 0.2s;
        }

        input:focus, textarea:focus {
            border: 2px solid var(--vert);
            outline: none;
        }

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

        button.cta-btn {
            align-self: flex-start;
            min-width: 160px;
        }

        .form-message {
            margin-top: 1rem;
            color: var(--vert);
            font-weight: bold;
            display: none;
        }

        .form-message.error {
            color: #d32f2f;
            display: block;
        }

        .form-message.success {
            color: var(--vert);
            display: block;
        }

        .coordonnees {
            margin-bottom: 1rem;
        }

        .carte iframe {
            border-radius: 12px;
            max-width: 100%;
        }

        /* Footer */
        footer {
            background: var(--bleu-fonce);
            color: var(--blanc);
            text-align: center;
            padding: 2.2rem 1rem 1.3rem 1rem;
            margin-top: 2.5rem;
            border-radius: 0 0 24px 24px;
            box-shadow: 0 -2px 16px rgba(2,50,94,0.07);
        }

        .footer-links {
            display: flex;
            justify-content: center;
            gap: 2.5rem;
            margin-bottom: 1rem;
            text-align: center;
            flex-wrap: wrap;
        }

        .footer-links a {
            color: var(--blanc);
            text-decoration: underline;
            font-size: 1.05rem;
            opacity: 0.86;
            transition: color 0.18s, opacity 0.18s;
        }

        .footer-links a:hover,
        .footer-links a:focus {
            color: var(--vert);
            opacity: 1;
        }

        /* ================================
           RESPONSIVE DESIGN
        ================================ */

        /* Menu hamburger pour mobile */
        @media (max-width: 900px) {
            .menu-toggle {
                display: block;
            }

            .logo-nav {
                flex-direction: row;
                justify-content: space-between;
                align-items: center;
                height: 60px;
                padding: 0.5rem 1rem;
            }

            nav {
                position: absolute;
                top: 60px;
                left: 0;
                right: 0;
                background: var(--blanc);
                box-shadow: 0 4px 16px rgba(2,50,94,0.12);
                display: none;
                padding: 1rem 0;
            }

            nav.active {
                display: block;
            }

            nav ul {
                flex-direction: column;
                gap: 0;
                text-align: center;
            }

            nav li {
                border-bottom: 1px solid rgba(2,50,94,0.08);
            }

            nav a {
                display: block;
                padding: 1rem 1.5rem;
                font-size: 1.1rem;
            }

            .header-cta {
                margin-left: 0;
                margin-top: 0.5rem;
                display: block;
                text-align: center;
                padding: 0.8rem 1.5rem;
                font-size: 1rem;
            }

            .service-list {
                flex-direction: column;
                gap: 1.3rem;
            }

            .service-card {
                flex: 1 1 100%;
                max-width: 100%;
            }

            .footer-links {
                gap: 1.2rem;
            }

            .valeurs {
                flex-direction: column;
                gap: 1rem;
            }

            .valeur {
                width: 100%;
                max-width: 300px;
                margin: 0 auto;
            }
        }

        /* Optimisations tablettes */
        @media (max-width: 768px) {
            .hero h1 {
                font-size: 2rem;
            }

            .hero-desc {
                font-size: 1.1rem;
            }

            .bug-info-content h2 {
                font-size: 1.8rem;
            }

            .bug-info-desc {
                font-size: 1rem;
            }

            .info-bug {
                padding: 3rem 1rem 2.5rem 1rem;
            }

            .services {
                padding: 3rem 1rem 2rem 1rem;
                margin: 1.5rem 1rem;
            }

            .services h2 {
                font-size: 1.8rem;
            }

            .service-list {
                gap: 1.5rem;
            }

            .service-card {
                min-width: 280px;
                max-width: 100%;
            }

            .formations {
                padding: 2.5rem 1rem;
                margin: 2rem 1rem;
            }

            .apropos, .contact {
                margin: 2rem 1rem;
                padding: 2rem 1rem;
            }
        }

        /* Optimisations smartphones */
        @media (max-width: 600px) {
            .logo {
                height: 40px;
            }

            .hero {
                padding: 3rem 1rem 2.5rem 1rem;
            }

            .hero h1 {
                font-size: 1.6rem;
                padding: 0 0.5rem;
                line-height: 1.3;
            }

            .hero-desc {
                font-size: 1rem;
                padding: 0 0.5rem;
            }

            .cta-btn.cta-large {
                font-size: 1.1rem;
                padding: 0.9rem 2rem;
            }

            .info-bug {
                padding: 3rem 1rem 2.5rem 1rem;
            }

            .bug-info-content h2 {
                font-size: 1.5rem;
            }

            .bug-info-desc {
                font-size: 0.95rem;
            }

            .services {
                padding: 2rem 1rem;
                margin: 1.5rem 0.5rem;
                border-radius: 16px;
            }

            .services h2 {
                font-size: 1.6rem;
                margin-bottom: 1.5rem;
            }

            .service-list {
                gap: 1rem;
            }

            .service-card {
                min-width: 100%;
                max-width: 100%;
                padding: 1.5rem 1rem;
                margin-bottom: 1rem;
            }

            .service-card h3 {
                font-size: 1.2rem;
            }

            .service-card p {
                font-size: 1rem;
            }

            .apropos, .contact {
                padding: 1.5rem 1rem;
                margin: 2rem 0.5rem;
            }

            .form-row {
                flex-direction: column;
                gap: 0;
            }

            input, textarea {
                width: 100%;
                font-size: 1rem;
                padding: 0.9rem;
            }

            button.cta-btn {
                width: 100%;
                max-width: none;
            }

            .footer-links {
                flex-direction: column;
                gap: 0.8rem;
                padding: 0 1rem;
            }

            .cta-btn, .cta-btn2 {
                width: 100%;
                max-width: 320px;
            }
        }

        /* Très petits écrans */
        @media (max-width: 400px) {
            .hero h1 {
                font-size: 1.4rem;
            }

            .service-card {
                min-width: 100%;
                max-width: 100%;
            }

            .cta-btn {
                padding: 0.9rem 1.5rem;
                font-size: 1rem;
            }
        }

        /* Masquer le toggle desktop */
        @media (min-width: 901px) {
            .menu-toggle {
                display: none;
            }
        }