.hero{
    padding:90px 0;
    background:linear-gradient(135deg,#0d6efd,#3b82f6);
    color:white;
}
.hero img{
    max-width:100%;
}
.feature-card{
    transition:.3s;
    border:none;
    border-radius:15px;
}
.feature-card:hover{
    transform:translateY(-8px);
    box-shadow:0 15px 30px rgba(0,0,0,.15);
}
.stats{
    background:white;
    padding:40px 0;
}
.course-card{
    border:none;
    border-radius:15px;
    transition:.3s;
}
.course-card:hover{
    transform:translateY(-5px);
    box-shadow:0 10px 20px rgba(0,0,0,.12);
}