/* Mobile styles */
@media (max-width: 768px) {
    .game-settings {
        flex-direction: column;
        align-items: stretch;
        margin-top: 60px;
        margin-bottom: 15px;
    }

    .custom-select-wrapper {
        width: 100%;
    }

    .study-type-selector {
        margin-bottom: 15px;
        flex-direction: column;
        border-radius: 12px;
    }

    .study-type-button {
        padding: 12px;
        text-align: center;
        border-radius: 8px;
    }

    .game-controls {
        flex-direction: row;
        padding: 0 20px;
        gap: 15px;
    }

    .fc-btn {
        flex: 1;
        min-width: 0;
        padding: 14px 10px;
        font-size: 1rem;
    }

    .fc-progress {
        padding: 0 20px;
        margin-bottom: 5px;
    }

    .game-scene {
        margin-top: 15px;
        margin-bottom: 15px;
        min-height: 220px;
    }

    .card-face {
        min-height: 220px;
        padding: 15px;
    }

    .game-controls {
        margin-top: 10px;
    }

    .sidebar {
        transform: translateX(-280px);
    }

    .sidebar.collapsed {
        transform: translateX(-280px);
    }

    .sidebar:not(.collapsed) {
        transform: translateX(0);
    }

    .sidebar-toggle {
        left: 20px;
    }

    .sidebar-toggle.active {
        left: 300px;
    }

    .main-content {
        margin-left: 0;
    }

    .main-content.expanded {
        margin-left: 0;
    }
}