/* Header */
        header {
            background-color: white;
            box-shadow: 0 2px 15px rgba(0, 0, 0, 0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }

        .header-top {
            background-color: var(--dark-color);
            color: white;
            padding: 8px 0;
            font-size: 0.9rem;
        }

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

        .header-top a {
            color: white;
            text-decoration: none;
            margin-left: 20px;
            transition: color 0.3s;
        }

        .header-top a:hover {
            color: var(--secondary-color);
        }

        .header-bottom {
            padding: 15px 0;
        }

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

        .logo {
            display: flex;
            align-items: center;
        }

        .logo h1 {
            font-size: 1.8rem;
            color: var(--tech-blue);
            font-weight: 700;
        }

        .logo span {
            color: var(--accent-color);
        }

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

        nav li {
            margin-left: 30px;
        }

        nav a {
            text-decoration: none;
            color: var(--primary-color);
            font-weight: 600;
            font-size: 1rem;
            transition: color 0.3s;
            position: relative;
        }

        nav a:hover {
            color: var(--tech-blue);
        }

        nav a:after {
            content: '';
            position: absolute;
            width: 0;
            height: 2px;
            background-color: var(--tech-blue);
            left: 0;
            bottom: -5px;
            transition: width 0.3s;
        }

        nav a:hover:after {
            width: 100%;
        }
        
        .mobile-menu {
            display: none;
            font-size: 1.5rem;
            cursor: pointer;
        }
        
        /* Dropdown amélioré */
        .dropdown {
            position: relative;
        }
        
        .dropdown-content {
            display: none;
            position: absolute;
            background-color: white;
            width: 800px;
            max-width: calc(100vw - 40px);
            box-shadow: 0 8px 25px rgba(0,0,0,0.15);
            z-index: 1001;
            border-radius: 8px;
            padding: 20px;
            top: 40px;
            left: -150px;
            grid-template-columns: repeat(2, 1fr);
            gap: 25px;
            border: 1px solid #eaeaea;
            opacity: 0;
            visibility: hidden;
            transition: opacity 0.3s ease, visibility 0.3s ease;
        }
        
        .dropdown:hover .dropdown-content,
        .dropdown-content:hover {
            display: grid;
            opacity: 1;
            visibility: visible;
        }
        
        .dropdown:hover > a {
            color: var(--tech-blue);
        }

        .dropdown-domain {
            display: flex;
            flex-direction: column;
        }

        .domain-title {
            color: var(--tech-blue);
            font-weight: 700;
            font-size: 1rem;
            padding: 10px 0 12px 0;
            display: flex;
            align-items: center;
            border-bottom: 2px solid var(--tech-blue);
            margin-bottom: 12px;
        }

        .domain-title i {
            margin-right: 10px;
            font-size: 1rem;
            width: 20px;
            text-align: center;
        }

        .domain-links {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .domain-links a {
            color: var(--primary-color);
            text-decoration: none;
            padding: 8px 10px;
            border-radius: 4px;
            font-size: 0.85rem;
            transition: all 0.3s;
            display: flex;
            align-items: center;
            border-left: 3px solid transparent;
        }

        .domain-links a:hover {
            background-color: #f8f9fa;
            color: var(--tech-blue);
            border-left-color: var(--tech-blue);
            padding-left: 12px;
        }

        .domain-links a i {
            margin-right: 8px;
            color: var(--gray-color);
            font-size: 0.85rem;
            width: 16px;
        }
        
        .header-top-left {
            display: flex;
            align-items: center;
        }
        
        .header-top-right {
            display: flex;
            align-items: center;
        }
        
        .social-icons {
            display: flex;
            margin-left: 20px;
        }
        
        .social-icons a {
            margin-left: 15px;
            font-size: 1.1rem;
        }
        
        .call-button {
            background-color: var(--tech-blue);
            color: white;
            padding: 10px 20px;
            border-radius: 5px;
            text-decoration: none;
            font-weight: 600;
            display: flex;
            align-items: center;
            transition: background-color 0.3s;
        }
        
        .call-button:hover {
            background-color: var(--secondary-color);
            color: white;
        }
        
        .call-button i {
            margin-right: 8px;
        }

        .whatsapp-button {
            background-color: #25D366;
            color: white;
            padding: 10px 20px;
            border-radius: 5px;
            text-decoration: none;
            font-weight: 600;
            display: flex;
            align-items: center;
            transition: all 0.3s;
            box-shadow: 0 2px 10px rgba(37, 211, 102, 0.3);
            margin-left: 20px;
            white-space: nowrap;
        }

        .whatsapp-button:hover {
            background-color: #1da851;
            color: white;
            transform: translateY(-2px);
            box-shadow: 0 4px 15px rgba(37, 211, 102, 0.4);
        }

        .whatsapp-button i {
            margin-right: 8px;
            font-size: 1.1rem;
        }

        /* Responsive */
        @media (max-width: 1100px) {
            .dropdown-content {
                width: 750px;
                left: -120px;
            }
            
            nav li {
                margin-left: 25px;
            }
        }

        @media (max-width: 992px) {
            .dropdown-content {
                width: 650px;
                left: -80px;
                grid-template-columns: repeat(2, 1fr);
                padding: 15px;
                gap: 20px;
            }
            
            nav li {
                margin-left: 20px;
            }
            
            .whatsapp-button {
                padding: 8px 15px;
                font-size: 0.9rem;
            }
        }

        @media (max-width: 850px) {
            .dropdown-content {
                width: 550px;
                left: -50px;
            }
        }

        @media (max-width: 768px) {
            nav ul {
                display: none;
                flex-direction: column;
                background-color: white;
                position: absolute;
                top: 60px;
                right: 20px;
                width: 250px;
                box-shadow: 0 2px 15px rgba(0, 0, 0, 0.1);
                border-radius: 8px;
                padding: 15px;
                z-index: 1001;
            }

            nav ul.active {
                display: flex;
            }

            nav li {
                margin: 10px 0;
                width: 100%;
            }

            .mobile-menu {
                display: block;
            }
            
            .dropdown-content {
                position: static;
                box-shadow: none;
                display: none;
                width: 100%;
                padding: 10px;
                margin-top: 10px;
                border: 1px solid #eee;
                border-radius: 5px;
                max-width: 100%;
                left: 0;
                opacity: 1;
                visibility: visible;
            }
            
            .dropdown-content.active {
                display: block;
            }
            
            .domain-title {
                font-size: 0.95rem;
                padding: 8px 0;
                margin-bottom: 10px;
            }
            
            .header-top .container {
                flex-direction: column;
                align-items: flex-start;
            }
            
            .header-top-right {
                margin-top: 10px;
                width: 100%;
                justify-content: space-between;
            }
            
            .social-icons {
                margin-left: 0;
            }
            
            .call-button {
                display: none;
            }
            
            .whatsapp-button {
                margin-left: 10px;
                font-size: 0.9rem;
                padding: 8px 15px;
            }
        }

        @media (max-width: 576px) {
            .dropdown-content {
                grid-template-columns: 1fr;
                gap: 15px;
            }
            
            .header-bottom .container {
                flex-wrap: wrap;
            }
            
            .whatsapp-button {
                order: 3;
                margin-top: 10px;
                width: 100%;
                justify-content: center;
                margin-left: 0;
            }
            
            .mobile-menu {
                order: 2;
            }
            
            nav ul {
                width: 200px;
            }
        }
        
        @media (max-width: 480px) {
            .logo h1 {
                font-size: 1.5rem;
            }
            
            .whatsapp-button {
                font-size: 0.85rem;
                padding: 8px 12px;
            }
        }