body{

background:#f5f9ff;

}


.card{

border:none;

border-radius:12px;

}


.navbar{

box-shadow:0 3px 10px #ddd;

}


.btn-primary{

background:#0066ff;

border:none;

}


/**NEW **/
.hero{

padding:80px 0;

background:
linear-gradient(
135deg,
#0066ff,
#00aaff
);

color:white;

}



.teacher-card{

transition:.3s;

}


.teacher-card:hover{

transform:translateY(-8px);

box-shadow:0 10px 25px #ccc;

}