body {
    margin: 0;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    background: #0f0f0f;
    color: white;
    text-align: center;
}

header {
    padding: 15px;
    background: #1a1a1a;
}

button {
    background: #00ff88;
    border: none;
    padding: 10px 15px;
    border-radius: 10px;
    cursor: pointer;
    font-weight: bold;
}

#player {
    margin-top: 30px;
}

#albumCover {
    width: 200px;
    height: 200px;
    object-fit: cover;
    border-radius: 20px;
    background: #222;
}

.controls {
    margin-top: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
}

#seekBar {
    width: 300px;
}

.buttons {
    margin-top: 20px;
}

#playPause {
    font-size: 20px;
    padding: 10px 20px;
}