body {
    font-family: Arial, sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    background-color: #f0f0f0;
}

#sound-controls {
    width: 80%;
    max-width: 600px;
    background: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0px 0px 10px rgba(0, 0, 0, 0.1);
}

#footer {
    text-align: center;
    margin-top: 20px;
}

.sound {
    margin-bottom: 10px;
}

button {
    margin-left: 10px;
}

.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0, 0, 0, 0.5);
}

.modal-content {
    background-color: #fefefe;
    margin: 15% auto;
    padding: 20px;
    border: 1px solid #888;
    width: 80%;
    max-width: 600px;
    border-radius: 8px;
}

.close-button {
    color: #aaa;
    float: right;
    font-size: 28px;
    font-weight: bold;
}

.close-button:hover,
.close-button:focus {
    color: black;
    text-decoration: none;
    cursor: pointer;
}

footer {
    width: 100%;
    background: #333;
    color: white;
    text-align: center;
    padding: 10px 0;
    position: absolute;
    bottom: 0;
}

.footer-content a {
    color: #aaa;
    text-decoration: none;
    margin: 0 10px;
}

.footer-content a:hover {
    color: white;
}