body {
    font-family: Arial, sans-serif;
    text-align: center;
    margin: 20px;
}

.container {
    max-width: 500px;
    margin: auto;
    padding: 20px;
    border: 1px solid #ddd;
    border-radius: 10px;
    box-shadow: 2px 2px 10px rgba(0, 0, 0, 0.1);
}

.btn {
    display: inline-block;
    margin: 10px;
    padding: 10px 15px;
    font-size: 16px;
    cursor: pointer;
    border: none;
    background: #007bff;
    color: white;
    border-radius: 5px;
}

.btn:disabled {
    background: #aaa;
    cursor: not-allowed;
}

.recording {
    margin: 10px 0;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 5px;
}