.psf-container {
    max-width: 600px;
    margin: 20px auto;
    padding: 20px;
    border: 1px solid #ddd;
    border-radius: 5px;
}

.psf-container form {
    display: flex;
    gap: 10px;
}

.psf-container input[type="text"] {
    flex: 1;
    padding: 8px;
    border: 1px solid #ccc;
    border-radius: 4px;
}

.psf-container button {
    padding: 8px 16px;
    background-color: #0073aa;
    color: #fff;
    border: none;
    border-radius: 4px;
    cursor: pointer;
}

.psf-container button:hover {
    background-color: #005d8a;
}

#psf-results {
    margin-top: 20px;
}