body {
    background-color: #f4f4f4;
    color: #333;
    font-family: Arial, sans-serif;
    padding: 20px;
}
body.dark-mode {
    background-color: #121212;
    color: #f0f0f0;
}
a {
    color: #0077cc;
    text-decoration: none;
}
a:hover {
    text-decoration: underline;
}
.alert {
    padding: 10px;
    margin-top: 20px;
    margin-bottom: 20px;
    border-radius: 5px;
    position: relative;
    max-width: 600px;
}
.alert.success {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}
.alert.error {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}
.alert .close {
    position: absolute;
    top: 5px;
    right: 10px;
    cursor: pointer;
    font-size: 20px;
}
.import-container {
    max-width: 800px;
    margin: 0 auto;
}