.str-nav {
    margin-top: 2rem;
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.str-btn {
    display: inline-block;
    padding: 0.4rem 0.9rem;
    border-radius: 4px;
    text-decoration: none;
    font-size: 0.95rem;
    padding: 8px 16px;
    border: 1px black;
    cursor: pointer;
}

.str-btn-next {
    background: #0073aa;
    color: #fff;
}

.str-btn-prev,
.str-btn-back-intro {
    background: #f1f1f1;
    color: #333;
}

.str-btn-print {
    background: #0073aa;
    color: #fff;

}