/* static/css/styles.css */
body {
    font-family: Arial, sans-serif;
    background-color: #f4f7f6;
    color: #333;
    margin: 0;
    padding: 0;
}
.container {
    width: 100%;
    max-width: 600px;
    margin: 50px auto;
    background-color: #fff;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    text-align: center;
}
h1 {
    color: #4CAF50;
}
.form-group {
    margin-bottom: 20px;
}
label {
    font-size: 1rem;
    margin-bottom: 5px;
    display: block;
    color: #555;
}
.form-select {
    width: 100%;
    padding: 10px;
    font-size: 1rem;
    border: 1px solid #ccc;
    border-radius: 5px;
    box-sizing: border-box;
}
button {
    background-color: #4CAF50;
    color: #fff;
    font-size: 1.1rem;
    padding: 10px 20px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    width: 100%;
}
button:hover {
    background-color: #45a049;
}
.audio-container {
    margin-top: 20px;
}
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.4);
    display: none;
    justify-content: center;
    align-items: center;
    color: #fff;
    font-size: 1.5rem;
    z-index: 1000;
}
.spinner {
    border: 4px solid #f3f3f3;
    border-top: 4px solid #4CAF50;
    border-radius: 50%;
    width: 50px;
    height: 50px;
    animation: spin 2s linear infinite;
    margin-bottom: 20px;
}
@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}