.player-container {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

#play-pause-button {
    /* Scalable size using em units relative to the parent font size */
    font-size: 4em; 
    width: 2em;
    height: 2em;
    border-radius: 50%;
    border: 5px solid black;
    background-color: #cc0000; /* Example color */
    color: white;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: background-color 0.3s;
}

#play-pause-button:hover {
    background-color: #ff0000;
}

/* Icon inside the button inherits font-size and scales automatically */
#play-pause-button i {
    pointer-events: none; /* Allows clicks to register on the button, not the icon */
}