/* Mobile Devices */
@media (max-width: 768px) {
    .app-container { flex-direction: column; }
    
    .glass-sidebar {
        width: 100%;
        height: auto;
        border-right: none;
        border-bottom: 1px solid var(--glass-border);
        padding: 1rem;
        position: fixed;
        bottom: 0;
        z-index: 200;
        flex-direction: row;
        justify-content: space-around;
    }

    .logo { display: none; }
    
    .nav-links {
        display: flex;
        flex-direction: row;
        width: 100%;
        justify-content: space-between;
        overflow-x: auto;
    }

    .nav-links li { margin: 0; }
    
    .main-content {
        padding: 1rem;
        padding-bottom: 180px; /* Space for player + nav */
    }

    h1 { font-size: 2.2rem; }
    
    /* Player Mobile View */
    .premium-player { bottom: 60px; padding: 0.5rem 1rem; }
    .player-body { flex-direction: column; gap: 0.5rem; }
    .player-utility-controls { justify-content: space-between; width: 100%; }
}