body{
    margin:0;
    padding:0;
    font-family:Arial,sans-serif;
    background:linear-gradient(135deg,#18002f,#000);
    color:white;
}

.container{
    max-width:1000px;
    margin:40px auto;
    padding:20px;
}

h2{
    text-align:center;
    font-size:40px;
    color:lime;
    margin-bottom:30px;
}

.courses{
    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(250px,1fr));
    gap:20px;
}

.course-card{
    background:#111;
    border:2px solid lime;
    border-radius:15px;
    padding:25px;
    box-shadow:0 0 15px rgba(0,255,0,0.3);
    transition:0.3s;
}

.course-card:hover{
    transform:translateY(-5px);
    box-shadow:0 0 25px lime;
}

.course-card h3{
    margin-bottom:15px;
    color:#00ff88;
}
.btn{
    display:inline-block;
    margin-top:25px;
    padding:15px 30px;
    background:#2eee0d;
    color:black;
    text-decoration:none;
    font-weight:bold;
    border-radius:10px;
}

.btn:hover{
    background:gold;
}


.course-card p{
    line-height:1.6;
}