/* Styles spécifiques bureau d'études */
        
        /* Approche */
        .approche-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 2rem;
        }

        .approche-card {
            background: var(--blanc);
            padding: 2.5rem;
            border-radius: 12px;
            box-shadow: var(--ombre);
            transition: var(--transition);
            position: relative;
        }

        .approche-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--ombre-forte);
        }

        .approche-number {
            font-size: 3rem;
            font-weight: 700;
            color: var(--bleu-tech2);
            opacity: 0.3;
            position: absolute;
            top: 1rem;
            right: 1.5rem;
        }

        .approche-card h3 {
            font-size: 1.4rem;
            font-weight: 700;
            margin-bottom: 1rem;
            color: var(--noir);
        }

        .approche-card p {
            color: var(--gris-moyen);
            line-height: 1.7;
        }

        /* Expertises détaillées */
        .expertise-detaillee {
            display: flex;
            flex-direction: column;
            gap: 3rem;
        }

        .expertise-bloc {
            background: var(--blanc);
            border-radius: 12px;
            padding: 2.5rem;
            box-shadow: var(--ombre);
        }

        .expertise-header {
            display: flex;
            gap: 2rem;
            align-items: flex-start;
            margin-bottom: 2rem;
            padding-bottom: 2rem;
            border-bottom: 2px solid var(--gris-clair);
        }

        .expertise-icon-large {
            flex-shrink: 0;
        }

        .expertise-icon-large img {
            width: 80px;
            height: 80px;
        }

        .expertise-header h3 {
            font-size: 2rem;
            font-weight: 700;
            color: var(--noir);
            margin-bottom: 0.5rem;
        }

        .expertise-baseline {
            font-size: 1.1rem;
            color: var(--gris-moyen);
            font-weight: 500;
        }

        .expertise-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
        }

        .expertise-competences h4,
        .expertise-technologies h4 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--bleu-tech);
            margin-bottom: 1rem;
        }

        .expertise-competences ul {
            list-style: none;
            padding: 0;
        }

        .expertise-competences li {
            padding: 0.5rem 0;
            padding-left: 1.5rem;
            position: relative;
            color: var(--gris-fonce);
        }

        .expertise-competences li:before {
            content: "→";
            position: absolute;
            left: 0;
            color: var(--bleu-tech);
            font-weight: 700;
        }

        .tech-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
        }

        .tech-tag {
            background: var(--gris-clair);
            color: var(--gris-fonce);
            padding: 0.5rem 1rem;
            border-radius: 20px;
            font-size: 0.9rem;
            font-weight: 600;
        }

        /* Services */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 2rem;
        }

        .service-card {
            background: var(--blanc);
            padding: 2rem;
            border-radius: 12px;
            box-shadow: var(--ombre-legere);
            text-align: center;
            transition: var(--transition);
        }

        .service-card:hover {
            box-shadow: var(--ombre);
            transform: translateY(-3px);
        }

        .service-icon {
            font-size: 2.5rem;
            margin-bottom: 1rem;
        }

        .service-card h3 {
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 1rem;
            color: var(--noir);
        }

        .service-card p {
            color: var(--gris-moyen);
            line-height: 1.6;
        }

        /* Outils */
        .outils-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            max-width: 1200px;
            margin: 0 auto;
        }

        .outil-categorie {
            background: var(--blanc);
            padding: 2rem;
            border-radius: 12px;
            box-shadow: var(--ombre-legere);
        }

        .outil-categorie h3 {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--bleu-tech);
            margin-bottom: 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid var(--gris-clair);
        }

        .outil-categorie ul {
            list-style: none;
            padding: 0;
        }

        .outil-categorie li {
            padding: 0.5rem 0;
            color: var(--gris-fonce);
            font-weight: 500;
        }

        /* CTA Final Simple */
        .cta-final-simple {
            text-align: center;
            padding: 5rem 2rem;
        }

        .cta-final-simple h2 {
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--noir);
            margin-bottom: 1rem;
        }

        .cta-final-simple p {
            font-size: 1.2rem;
            color: var(--gris-moyen);
            margin-bottom: 2rem;
        }

        /* Responsive */
        @media (max-width: 768px) {
            .expertise-header {
                flex-direction: column;
                text-align: center;
            }

            .expertise-icon-large {
                margin: 0 auto;
            }

            .expertise-content {
                grid-template-columns: 1fr;
            }

            .approche-grid,
            .services-grid,
            .outils-grid {
                grid-template-columns: 1fr;
            }
        }