/* Professional Clean Nav */
        .nav-sticky {
            background: rgba(255, 255, 255, 0.98);
            border-bottom: 1px solid #e2e8f0;
            box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
        }
        
        /* Subtle Professional Pattern */
        .hero-bg {
            background-color: #051b38;
            background-image: linear-gradient(#0a2e5c 1px, transparent 1px), linear-gradient(90deg, #0a2e5c 1px, transparent 1px);
            background-size: 40px 40px;
            background-position: center center;
        }
        .hero-overlay {
            background: linear-gradient(to bottom, rgba(5, 27, 56, 0.9), #051b38);
        }

        /* Clean Mobile Menu */
        #mobile-menu {
            transition: max-height 0.3s ease-in-out, opacity 0.3s ease-in-out;
            max-height: 0;
            opacity: 0;
            overflow: hidden;
        }
        #mobile-menu.open {
            max-height: 500px;
            opacity: 1;
        }

        /* Functional Hover States */
        .service-card {
            transition: border-color 0.2s ease, transform 0.2s ease;
        }
        .service-card:hover {
            border-color: #fba919;
            transform: translateY(-2px);
        }
        
        /* Vertical Separator for Logo */
        .logo-separator {
    display: inline-block;
    height: 24px;
    width: 1px;
    background-color: #cbd5e1;
    margin: 0 8px; /* reduced for mobile */
}

@media (min-width: 640px) {
    .logo-separator {
        margin: 0 16px; /* normal on desktop */
    }
}