body {
    background-color: #f8f9fa;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.navbar {
    box-shadow: 0 2px 4px rgba(0,0,0,.1);
}

.card {
    box-shadow: 0 2px 8px rgba(0,0,0,.1);
    border: none;
    border-radius: 8px;
    margin-bottom: 20px;
}

.card-header {
    border-radius: 8px 8px 0 0 !important;
}

.table {
    margin-bottom: 0;
}

.table th {
    background-color: #f8f9fa;
    font-weight: 600;
    border-top: none;
}

.status-badge {
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 0.85rem;
    font-weight: 500;
}

.status-landed {
    background-color: #d4edda;
    color: #155724;
}

.status-on-time, .status-scheduled {
    background-color: #d1ecf1;
    color: #0c5460;
}

.status-delayed {
    background-color: #fff3cd;
    color: #856404;
}

.status-cancelled {
    background-color: #f8d7da;
    color: #721c24;
}

.status-boarding {
    background-color: #cfe2ff;
    color: #084298;
}

.btn-group {
    margin-right: 10px;
}

#last-update {
    font-size: 0.9rem;
}

.flight-row:hover {
    background-color: #f1f3f5;
}

@media (max-width: 768px) {
    .table {
        font-size: 0.9rem;
    }
    
    .btn-group {
        display: flex;
        flex-direction: column;
        width: 100%;
    }
    
    .btn-group .btn {
        border-radius: 4px !important;
        margin-bottom: 5px;
    }
}