.theme-option {
    display: flex;
    align-items: center;
    padding: 5px 0;
}

.theme-preview {
    display: inline-block;
    width: 20px;
    height: 20px;
    border-radius: 3px;
    margin-right: 10px;
    vertical-align: middle;
    border: 1px solid #ccc;
}

.form-control:focus {
    outline: none;
    border-color: #0077be;
    box-shadow: 0 0 0 2px rgba(0, 119, 190, 0.2);
}

.result-image {
    transition: transform 0.2s ease-in-out;
}

.result-image:hover {
    transform: scale(1.02);
}

footer {
    text-align: center;
    margin-top: 30px;
    color: #777;
    font-size: 14px;
}