style.css

body {
    font-family: Arial, sans-serif;
    display: flex;
    flex-direction: column;
    align-items: center;
    margin: 0;
    background-color: #f0f0f0;
    padding: 20px;
}

.container {
    background-color: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    width: 80%;
    max-width: 500px;
    margin-bottom: 20px;
}

textarea {
    width: 100%;
    height: 100px;
    margin: 10px 0;
    padding: 5px;
    border: 1px solid #ddd;
    border-radius: 4px;
}

button {
    width: 100%;
    padding: 10px;
    background-color: #4CAF50;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
}

button:hover {
    background-color: #45a049;
}

#linkInfo {
    background-color: #f9f9f9;
    border: 1px solid #ddd;
    padding: 10px;
    border-radius: 4px;
    white-space: pre-wrap;
}

#linkInfo a {
    color: #4CAF50;
    text-decoration: none;
}

#linkInfo a:hover {
    text-decoration: underline;
}

#loadingIndicator {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 3px solid #f3f3f3;
    border-top: 3px solid #3498db;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}