/* Preloader */
        #preloader {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: #ffffff;
            z-index: 9999;
            display: flex;
            justify-content: center;
            align-items: center;
            transition: opacity 0.5s ease;
        }
        .spinner {
            width: 40px;
            height: 40px;
            border: 4px solid #f3f3f3;
            border-top: 4px solid #003A39;
            border-radius: 50%;
            animation: spin 1s linear infinite;
        }
        @keyframes spin {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }
        
        /* Smooth Mobile Menu Transition */
        #mobileMenu {
            transition: max-height 0.3s ease-in-out, opacity 0.3s ease-in-out;
            max-height: 0;
            opacity: 0;
            overflow: hidden;
        }
        #mobileMenu.open {
            max-height: 500px; /* Adjust if menu gets longer */
            opacity: 1;
        }