/* Variables globales */
        :root {
            --primary: #38633B;
            --primary-light: #4a7a4d;
            --primary-dark: #2c4c2e;
            --secondary: #d8f3dc;
            --neutral: #f8f9fa;
            --text-dark: #212529;
            --text-light: #6c757d;
            --border: #ced4da;
            --input-bg: #fdfdfd;
            --shadow: 0 4px 12px rgba(0,0,0,0.08);
            --radius: 8px;
            --font-main: 'Montserrat', 'Arial', sans-serif;
            --transition: all 0.3s ease;
        }

        /* Intégration de la police Montserrat */
        @import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@400;500;600;700&display=swap');

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

        body {
            font-family: var(--font-main);
            background: var(--neutral);
            color: var(--text-dark);
            margin: 0;
            line-height: 1.6;
            
        }

        /* Style du formulaire principal */
        .devis-form {
            max-width: 900px;
            margin: 0 auto;
            background: white;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 40px;
            position: relative;
        }

        .devis-form h2 {
            color: var(--primary-dark);
            text-align: center;
            margin-bottom: 30px;
            font-size: 26px;
            font-weight: 700;
            border-bottom: 2px solid var(--secondary);
            padding-bottom: 15px;
            margin-bottom: 20px  ;
        }

        /* Résumé du produit */
        .product-recap {
            background: var(--secondary);
            border-radius: var(--radius);
            padding: 25px;
            margin-bottom: 30px;
            display: flex;
            align-items: center;
        }

        .product-image {
            flex: 0 0 120px;
            margin-right: 25px;
        }

        .product-image img {
            border-radius: var(--radius);
            box-shadow: 0 2px 5px rgba(0,0,0,0.1);
            width: 100%;
        }

        .product-info h3 {
            color: var(--primary);
            margin-top: 0;
            margin-bottom: 15px;
            font-size: 20px;
        }

        .product-info ul {
            list-style: none;
            padding: 0;
            margin: 0 0 15px 0;
        }

        .product-info ul li {
            margin-bottom: 8px;
            font-size: 15px;
            display: flex;
            align-items: center;
        }

        .product-info ul li strong {
            color: var(--primary-dark);
            margin-right: 5px;
        }

        .product-info p {
            color: var(--text-light);
            font-size: 14px;
            line-height: 1.5;
        }

        /* Sections du formulaire */
        .form-section {
            margin-bottom: 40px;
            border-bottom: 1px solid var(--border);
            padding-bottom: 25px;
            transition: opacity 0.3s ease-in-out;
        }

        .form-section:last-child {
            border-bottom: none;
        }

        .form-section h3 {
            color: var(--primary);
            font-size: 20px;
            margin-bottom: 20px;
            font-weight: 600;
        }

        .form-row {
            display: flex;
            gap: 20px;
            margin-bottom: 20px;
        }

        .form-group {
            flex: 1;
            margin-bottom: 20px;
            display: flex;
            flex-direction: column;
        }

        .form-group label {
            display: block;
            margin-bottom: 8px;
            font-weight: 500;
            color: var(--text-dark);
            font-size: 15px;
        }

        .form-group label:after {
            content: "*";
            color: var(--primary);
            margin-left: 4px;
        }

        .form-group label[for="entreprise"]:after,
        .form-group label[for="message"]:after {
            content: "";
        }

        /* Style des inputs */
        .form-group input,
        .form-group select,
        .form-group textarea {
            width: 100%;
            padding: 14px 16px;
            border: 1.5px solid var(--border);
            border-radius: var(--radius);
            font-family: var(--font-main);
            font-size: 15px;
            background: var(--input-bg);
            color: var(--text-dark);
            transition: var(--transition);
        }

        .form-group input:focus,
        .form-group select:focus,
        .form-group textarea:focus {
            border-color: var(--primary);
            outline: none;
            box-shadow: 0 0 0 3px rgba(56, 99, 59, 0.1);
        }

        .form-group textarea {
            resize: vertical;
            min-height: 150px;
        }

        .form-group select {
            appearance: none;
            background-image: url("data:image/svg+xml;utf8,<svg fill='gray' height='24' viewBox='0 0 24 24' width='24' xmlns='http://www.w3.org/2000/svg'><path d='M7 10l5 5 5-5z'/></svg>");
            background-repeat: no-repeat;
            background-position: right 12px center;
            background-size: 18px 18px;
            padding-right: 40px;
        }

        /* Options avec checkbox */
        .checkbox-group {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 15px;
            margin-bottom: 10px;
        }

        .checkbox-item {
            display: flex;
            align-items: flex-start;
            cursor: pointer;
        }

        .checkbox-item input[type="checkbox"] {
            width: 18px;
            height: 18px;
            margin-top: 2px;
            margin-right: 10px;
            accent-color: var(--primary);
            cursor: pointer;
        }

        .checkbox-item label {
            font-size: 15px;
            color: var(--text-dark);
            cursor: pointer;
        }

        /* Style pour le consentement RGPD */
        .checkbox-item.rgpd {
            grid-column: 1 / -1;
            margin-top: 10px;
        }

        .checkbox-item.rgpd label {
            font-size: 14px;
            color: var(--text-light);
        }

        /* Bouton d'envoi */
        .form-actions {
            text-align: center;
            margin-top: 30px;
        }

        .btn-submit {
            background: var(--primary);
            color: white;
            border: none;
            padding: 16px 30px;
            font-size: 16px;
            font-weight: 600;
            border-radius: var(--radius);
            cursor: pointer;
            transition: var(--transition);
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        .btn-submit:hover {
            background: var(--primary-light);
            transform: translateY(-2px);
            box-shadow: 0 4px 8px rgba(0,0,0,0.15);
        }

        .form-note {
            text-align: center;
            font-size: 13px;
            color: var(--text-light);
            margin-top: 20px;
        }

        /* Messages de succès et d'erreur */
        .success-message {
            background-color: #e8f5e9;
            border-left: 4px solid #43a047;
            padding: 15px;
            margin: 20px 0;
            color: #1b5e20;
            border-radius: 4px;
        }

        .error-message {
            background-color: #ffebee;
            border-left: 4px solid #e53935;
            padding: 15px;
            margin: 20px 0;
            color: #b71c1c;
            border-radius: 4px;
        }

        /* Responsive */
        @media (max-width: 768px) {
            .devis-form {
                padding: 30px 20px;
            }

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

            .checkbox-group {
                grid-template-columns: 1fr;
            }

            .product-recap {
                flex-direction: column;
                text-align: center;
                padding: 20px;
            }

            .product-image {
                margin-right: 0;
                margin-bottom: 20px;
            }

            .btn-submit {
                width: 100%;
                padding: 14px 20px;
            }
        }

        @media (max-width: 576px) {
            .devis-form {
                padding: 20px 15px;
            }

            .devis-form h2 {
                font-size: 22px;
            }

            .form-section h3 {
                font-size: 18px;
            }

            .form-group input,
            .form-group select,
            .form-group textarea {
                padding: 12px 14px;
            }
        }