#audio-base64 .container
 {
    margin-top: 30px;
    padding-top: 25px;
}
#audio-base64 .input-group, #audio-base64 .output-group{
    margin-bottom: 20px;
    text-align: center;
}
#audio-base64 input[type="file"]{
    display: none;
}
#audio-base64 .custom-file-upload{
    border: 2px dashed #ced4da;
    padding: 20px;
    text-align: center;
    cursor: pointer;
    display: block;
    border-radius: 8px;
    transition: border-color 0.3s, background-color 0.3s;
}
#audio-base64 .custom-file-upload:hover{
    border-color: #007bff;
    background-color: #e9ecef;
}
#audio-base64 .file-info{
    margin-top: 10px;
    padding: 10px;
    background-color: #f1f1f1;
    border-radius: 8px;
}
#audio-base64 .file-info p{
    margin: 5px 0;
}
#audio-base64 label {
    font-size: 1.4em;
}
#audio-base64 .btn{
    background-color: #28a745;
    color: white;
    padding: 12px 25px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 1rem;
    width: 100%;
    max-width: 200px;
    margin-bottom: 10px;
    transition: background-color 0.3s, opacity 0.3s;
}
#audio-base64 .btn-info{
    background-color: #17a2b8;
}
#audio-base64 .btn:hover:not(:disabled){
    background-color: #1e7e34;
}
#audio-base64 .btn-info:hover:not(:disabled){
    background-color: #117a8b;
}
#audio-base64 .btn:disabled{
    background-color: #6c757d;
    cursor: not-allowed;
    opacity: 0.7;
}
#audio-base64 textarea{
    width: 100%;
    height: 150px;
    padding: 10px;
    border: 1px solid #ced4da;
    border-radius: 8px;
    box-sizing: border-box;
    resize: vertical;
    font-family: Consolas, 'Courier New', monospace;
    font-size: 0.9rem;
}
#audio-base64 #audioPlayerContainer{
    margin-top: 15px;
    padding: 15px;
    border: 1px solid #17a2b8;
    border-radius: 8px;
    background-color: #e6f7ff;
    display: none;
    text-align: center;
}
#audio-base64 #audioPlayer{
    width: 100%;
    max-width: 400px;
}
#audio-base64 .status-message{
    margin-top: 15px;
    padding: 10px;
    border-radius: 8px;
    text-align: center;
}
#audio-base64 .status-error{
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}
#audio-base64 .status-success{
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}
@media (max-width: 600px){
    #audio-base64 .container{
        padding: 20px 15px;
        margin-top: 10px;
    }
    #audio-base64 .btn{
        padding: 10px 15px;
        font-size: 0.9rem;
    }
}