body{
    background:#f8f9fa;
}

.lesson-header{
    background:linear-gradient(90deg,#f95b8d,#f23f7b);
    color:white;
    padding:45px 20px;
    text-align:center;
    margin-bottom:40px;
}

.lesson-header h1{
    font-weight:bold;
}

.section-title{
    margin-top:40px;
    margin-bottom:20px;
    font-weight:bold;
}

.table th{
    background:#f0f0f0;
}

.example{
    margin-bottom:12px;
}

.translation{
    color:#777;
    font-size:.9rem;
    margin-left:20px;
}

.resume{
    background:#fff5f8;
    border-left:5px solid #f23f7b;
    padding:20px;
    border-radius:5px;
}

footer{
    background:#212529;
    color:white;
    padding:40px 0;
    margin-top:60px;
}