.alert {
    padding: 15px;
    margin: 10px 0;
    border-radius: 5px;
    font-size: 16px;
    font-weight: 500;
    display: none; /* Initially hidden */
}

.alert-success {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.alert-danger {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.alert-warning {
    background-color: #fff3cd;
    color: #856404;
    border: 1px solid #ffeeba;
}

.alert-info {
    background-color: #d1ecf1;
    color: #0c5460;
    border: 1px solid #bee5eb;
}

.close-btn {
    float: right;
    font-size: 18px;
    font-weight: bold;
    cursor: pointer;
}