:root {
        --aviation-blue: #003875;
        --aviation-gold: #FFB612;
    }

    .bg-navy {
        background-color: var(--aviation-blue);
    }

    .wave-divider {
        height: 120px;
        overflow: hidden;
    }
    
    .card {
        transition: transform 0.3s ease;
    }
    
    .card:hover {
        transform: translateY(-5px);
    }
    
    .stat-box {
        background: rgba(255, 255, 255, 0.1);
        backdrop-filter: blur(5px);
    }
    
    .hero-section {
        background: linear-gradient(135deg, var(--aviation-blue) 0%, #005BAA 100%);
    }
    
    .fas {
        transition: transform 0.3s ease;
    }
    
    .card:hover .fas {
        transform: scale(1.1);
    }

    /* Custom styling for the map popup */
    .leaflet-popup-content-wrapper {
        border-radius: 8px;
        box-shadow: 0 2px 4px rgba(0,0,0,0.2);
    }

    .airport-popup {
        padding: 5px;
    }

    .airport-popup h5 {
        margin-bottom: 8px;
        color: var(--aviation-blue);
    }

    @media (max-width: 768px) {
        .hero-section {
            min-height: 200px;
        }
        
        .wave-divider {
            height: 60px;
        }

        .stat-box {
            padding: 15px !important;
        }

        .stat-box h3 {
            font-size: 1.5rem;
        }
    }