@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;600;700;900&display=swap');

        :root {
            --primary: #6ef9ad; 
            --dark: #0a0a0a;
            --apple-bg: #fbfbfd;
            --text-gray: #86868b;
            --transition: all 0.6s cubic-bezier(0.16, 1, 0.3, 1);
        }

        /* --- BASE --- */
        html, body { 
            font-family: 'Inter', -apple-system, sans-serif; 
            color: var(--dark); 
            background-color: #fff;
            margin: 0; padding: 0;
            width: 100%;
            overflow-x: hidden;
            scroll-behavior: smooth;
        }

        /* --- HEADER & NAVIGATION PRO --- */
        header { 
            transition: var(--transition); 
            z-index: 2500; 
            padding: 30px 0;
            background: transparent;
            width: 100%;
        }
        header.scrolled { 
            background: rgba(255,255,255,0.85); 
            backdrop-filter: blur(25px); 
            padding: 15px 0; 
            border-bottom: 1px solid rgba(0,0,0,0.05); 
        }

        #logoText { font-weight: 900; color: #fff; text-decoration: none; font-size: 1.6rem; letter-spacing: -1px; transition: color 0.4s; }
        header.scrolled #logoText { color: var(--dark) !important; }

        .desktop-nav { display: flex; align-items: center; }
        .desktop-nav a {
            color: #fff; text-decoration: none; font-weight: 600; font-size: 0.75rem;
            margin-left: 35px; text-transform: uppercase; letter-spacing: 1.5px; transition: 0.3s;
        }
        header.scrolled .desktop-nav a { color: var(--dark); }
        .desktop-nav a:hover { color: var(--primary) !important; }

        /* SOUS-MENU DESKTOP PRO */
        .nav-item-dropdown { position: relative; }
        .dropdown-content {
            position: absolute; top: 100%; left: 35px; background: #fff;
            min-width: 250px; box-shadow: 0 30px 60px rgba(0,0,0,0.12);
            border-radius: 18px; padding: 20px 0; opacity: 0; visibility: hidden;
            transform: translateY(20px); transition: var(--transition);
        }
        .nav-item-dropdown:hover .dropdown-content { opacity: 1; visibility: visible; transform: translateY(10px); }
        
        .dropdown-link {
            color: var(--dark) !important; padding: 12px 25px !important; margin: 0 !important;
            display: flex !important; justify-content: space-between; align-items: center;
            text-transform: none !important; font-size: 0.95rem !important; font-weight: 500 !important;
        }
        .dropdown-link:hover { background: var(--apple-bg); color: var(--primary) !important; }
        .dropdown-link i { font-size: 0.7rem; opacity: 0.3; transition: 0.3s; }
        .dropdown-link:hover i { opacity: 1; transform: translateX(5px); }

        /* --- BURGER --- */
        .burger-btn {
            width: 30px; height: 18px; border: none; background: transparent;
            position: relative; display: none; flex-direction: column; justify-content: space-between; z-index: 3000;
        }
        .burger-line { width: 100%; height: 2px; background: #fff; transition: var(--transition); border-radius: 10px; }
        header.scrolled .burger-line { background: var(--dark); }
        .burger-btn.active .line-1 { transform: translateY(8px) rotate(45deg); background: var(--dark); }
        .burger-btn.active .line-2 { opacity: 0; }
        .burger-btn.active .line-3 { transform: translateY(-8px) rotate(-45deg); background: var(--dark); }

        @media (max-width: 991px) {
            .desktop-nav { display: none; }
            .burger-btn { display: flex; }
        }

        /* --- OVERLAY MOBILE --- */
        #menuOverlay {
            position: fixed; top: 0; left: 0; width: 100%; height: 100%;
            background: #fff; display: flex; flex-direction: column; align-items: flex-start; justify-content: center;
            padding: 10%; opacity: 0; visibility: hidden; transition: 0.5s cubic-bezier(0.16, 1, 0.3, 1); z-index: 2400;
        }
        #menuOverlay.open { opacity: 1; visibility: visible; }
        .nav-list-mobile { list-style: none; padding: 0; width: 100%; }
        .nav-list-mobile a { font-size: 2.5rem; font-weight: 900; color: var(--dark); text-decoration: none; display: block; padding: 10px 0; letter-spacing: -1px; }
        
        .mobile-sub-menu { max-height: 0; overflow: hidden; transition: max-height 0.6s ease; padding-left: 20px; border-left: 2px solid var(--primary); margin-bottom: 10px; }
        .mobile-dropdown.active .mobile-sub-menu { max-height: 500px; margin-top: 10px; }
        .mobile-sub-menu a { font-size: 1.4rem !important; color: var(--text-gray) !important; }

        /* --- HERO --- */
        .hero-section { height: 100vh; position: relative; display: flex; align-items: center; background: #000; overflow: hidden; }
        .video-bg { position: absolute; top: 50%; left: 50%; width: 100%; height: 100%; object-fit: cover; transform: translate(-50%, -50%); opacity: 0.55; }
        .hero-content { position: relative; z-index: 10; width: 100%; }
        .main-title { font-weight: 900; font-size: clamp(2.8rem, 9vw, 6.5rem); letter-spacing: -4px; line-height: 0.85; color: #fff; }

        /* --- SECTIONS PRO --- */
        .section-padding { padding: 120px 0; }
        .bg-light { background-color: var(--apple-bg) !important; }
        .section-tag { color: var(--primary); font-weight: 800; text-transform: uppercase; font-size: 0.85rem; letter-spacing: 3px; display: block; margin-bottom: 20px; }

        /* STATS */
        .stat-number { font-size: 5rem; font-weight: 900; letter-spacing: -3px; line-height: 1; color: var(--dark); }
        .stat-text { font-size: 0.8rem; font-weight: 700; text-transform: uppercase; color: var(--text-gray); letter-spacing: 2px; margin-top: 10px; }

        /* CARDS */
        .service-card-pro {
            background: #fff; padding: 50px; height: 100%; border-radius: 30px;
            border: 1px solid rgba(0,0,0,0.03); transition: var(--transition);
            position: relative; overflow: hidden;
        }
        .service-card-pro:hover { transform: translateY(-15px); border-color: var(--primary); box-shadow: 0 40px 80px rgba(0,0,0,0.06); }
        .icon-box { width: 60px; height: 60px; background: var(--apple-bg); border-radius: 15px; display: flex; align-items: center; justify-content: center; margin-bottom: 30px; transition: 0.3s; }
        .service-card-pro:hover .icon-box { background: var(--primary); color: #fff; }
        
        /* LOGO SLIDER */
        .logo-slider { padding: 80px 0; background: #fff; border-top: 1px solid #f2f2f2; }
        .logo-track { display: flex; animation: scrollInfinite 30s linear infinite; width: max-content; align-items: center; }
        .logo-item { margin: 0 60px; }
        .logo-item img { height: 45px; opacity: 0.35; filter: grayscale(1); transition: 0.4s; }
        .logo-item img:hover { opacity: 1; filter: grayscale(0); transform: scale(1.1); }

        @keyframes scrollInfinite {
            0% { transform: translateX(0); }
            100% { transform: translateX(-50%); }
        }

        /* BUTTONS */
        .btn-pro {
            background: var(--dark); color: #fff; border-radius: 100px; padding: 18px 45px;
            font-weight: 700; text-decoration: none; display: inline-block; transition: var(--transition);
            border: 1px solid var(--dark);
        }
        .btn-pro:hover { background: transparent; color: var(--dark); transform: scale(1.05); }

        /* FOOTER */
        footer { padding: 100px 0 50px; background: #fff; border-top: 1px solid #eee; }
        .footer-link { color: var(--text-gray); text-decoration: none; font-size: 1rem; margin-bottom: 12px; display: block; transition: 0.3s; }
        .footer-link:hover { color: var(--dark); padding-left: 8px; }