/* Music Player Responsive */
@media (max-width: 1024px) {
    .music-player {
        left: 220px;
    }

    .player-progress {
        width: 100px;
    }
}

@media (max-width: 768px) {
    .music-player {
        left: 0;
        bottom: 60px;
    }

    .player-progress {
        width: 80px;
    }

    .volume-control {
        display: none;
    }
}

/* PDF Reader Responsive */
@media (max-width: 1024px) {
    .pdf-reader-container {
        flex-direction: column;
    }

    .pdf-sidebar {
        width: 100%;
        max-height: 200px;
    }

    .pdf-list {
        flex-direction: row;
        overflow-x: auto;
    }

    .pdf-item {
        flex-shrink: 0;
        min-width: 150px;
    }
}