/* Ultra-Small CSS - Very Small Screen Optimizations */

@media (max-width: 400px), (max-height: 400px) {
    /* Ultra-compact layout for very small screens */
    header {
        padding: 5px 10px;
    }

    header h1 {
        font-size: 18px;
    }

    .header-btn {
        padding: 4px 8px;
        font-size: 11px;
        min-height: 28px;
        min-width: 50px;
    }

    #game-stats {
        gap: 5px;
    }

    #game-stats span {
        font-size: 10px;
        padding: 2px 4px;
    }

    #game-canvas {
        max-height: 45vh;
    }

    #game-controls {
        gap: 8px;
        padding: 6px;
    }

    .tower-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 4px;
    }

    .tower-btn {
        padding: 8px 4px;
        font-size: 10px;
    }

    .tower-name {
        font-size: 11px;
    }

    #tower-actions {
        gap: 4px;
    }

    #tower-actions button {
        padding: 10px 6px;
        font-size: 11px;
    }

    #welcome-content h1 {
        font-size: 24px;
    }

    #welcome-content > p {
        font-size: 14px;
    }
}