/* tutorial.css */
body {
    font-family: 'Nunito', sans-serif;
    background-color: #f5f5f5;
}

.topic-link {
    display: flex;
    align-items: center;
    text-decoration: none;
    padding: 8px 12px;
    margin-bottom: 5px;
    border-radius: 6px;
    color: #333;
    transition: background-color 0.2s ease;
}

.topic-link:hover {
    background-color: #eaf4ed;
}

.topic-link.active {
    background-color: #198754;
    color: white;
}

.topic-badge {
    background-color: #198754;
    color: white;
    border-radius: 50%;
    width: 28px;
    height: 28px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    font-weight: bold;
    margin-right: 10px;
}

.content-area {
    padding: 30px;
    background: white;
}

@media (max-width: 768px) {
    .content-area {
        padding: 15px;
    }
}

.btn {
    font-size: 14px;
    font-weight: 600;
    padding: 10px 16px;
}