#preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #fff;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
}

.loader {
    border: 16px solid #f3f3f3;
    border-radius: 50%;
    border-top: 16px solid #3498db;
    width: 120px;
    height: 120px;
    -webkit-animation: spin 2s linear infinite;
    animation: spin 2s linear infinite;
}

@-webkit-keyframes spin {
    0% { -webkit-transform: rotate(0deg); }
    100% { -webkit-transform: rotate(360deg); }
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.player-container {
    display: none;
    text-align: center;
    background: #fff;
    padding: 20px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    border-radius: 8px;
}

audio {
    width: 100%;
    margin-bottom: 20px;
}

#playlist {
    list-style: none;
    padding: 0;
    margin: 0;
}

#playlist ul {
    padding: 0;
}

#playlist li {
    padding: 10px;
    cursor: pointer;
    border-bottom: 1px solid #ddd;
}

#playlist li.active {
    background-color: #3498db;
    color: #fff;
}

#playlist li:hover {
    background-color: #2980b9;
    color: #fff;
}