body { font-family: sans-serif; margin: 0; padding: 0; background: #f4f4f4; }
header { background: #333; color: white; padding: 1rem; display: flex; align-items: center; }
.hidden { display: none; }

#song-list { list-style: none; padding: 0; margin: 0; }
#song-list li { 
    padding: 15px; 
    border-bottom: 1px solid #ddd; 
    background: white; 
    cursor: pointer;
}
#song-list li:active { background: #eee; }

#detail-view { background: white; min-height: 100vh; }
#lyric-content { 
    padding: 20px; 
    white-space: pre-wrap; 
    font-size: 1.1rem; 
    line-height: 1.6;
}
#back-button { 
    background: none; 
    border: 1px solid white; 
    color: white; 
    padding: 5px 10px; 
    margin-right: 15px; 
    border-radius: 4px;
}