body {
    font-family: Verdana, Geneva, sans-serif;
    background-color: #ffffff;
    color: #000000;
    margin: 0 auto;
    padding: 30px;
    max-width: 800px;
    line-height: 1.6;
}

h1 {
    text-align: center;
}

nav {
    text-align: center;
    margin-bottom: 20px;
}

nav a {
    color: #2e7d32; /* darker green for better contrast on white */
    text-decoration: none;
    margin: 0 10px;
    font-weight: bold;
    transition: color 0.2s ease;
}

nav a:hover {
    color: #4CAF50;
}

.track {
    margin-bottom: 25px;
    padding: 15px;
    background-color: #f4f4f4; /* light grey card */
    border-radius: 10px;
    box-shadow: 0 2px 6px rgba(0,0,0,0.1);
}

.track.playing {
    border: 2px solid #4CAF50;
    background-color: #e8f5e9; /* subtle green highlight */
}

audio {
    width: 100%;
    margin-top: 10px;
}