body {
    overflow-x: hidden;
    touch-action: manipulation;
}

#gameCanvas {
    background-color: #1a1a1a;
    border: 2px solid #333;
    width: 100%;
    max-width: 1024px;
    height: auto;
    aspect-ratio: 1024/768;
    margin: 0 auto;
    display: block;
    touch-action: none;
}

.card {
    border-color: #333;
}

/* Mobile-optimized buttons */
.btn {
    min-height: 44px;
    font-size: 1rem;
    touch-action: manipulation;
}

/* Better spacing on mobile */
@media (max-width: 991.98px) {
    .card-body {
        padding: 1rem;
    }
    
    .card-body h5 {
        font-size: 1.1rem;
        margin-bottom: 0.75rem;
    }
    
    .card-body p {
        font-size: 0.95rem;
        margin-bottom: 0.5rem;
    }
    
    .btn {
        font-size: 0.95rem;
        padding: 0.5rem 0.75rem;
    }
}

/* Extra small devices */
@media (max-width: 575.98px) {
    .container-fluid {
        padding-left: 0.5rem !important;
        padding-right: 0.5rem !important;
    }
    
    #gameCanvas {
        border-width: 1px;
    }
}