body {
    font-family: Arial, sans-serif;
    max-width: 900px;
    margin: auto;
    padding-bottom: 120px;
}

nav {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    padding: 20px;
}

li {
    margin: 12px 0;
}

.playing {
    font-weight: bold;
}

#player {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 15px;
    background: #eee;
    border-top: 1px solid #999;
}

audio {
    width: 100%;
}