*{
    margin:0;
    padding:0;
    box-sizing:border-box;
    font-family:Arial, sans-serif;
}

body{
    line-height:1.6;
    color:#333;
}

.container{
    width:90%;
    max-width:1200px;
    margin:auto;
}

/* Hero Section */

.hero{
    background:linear-gradient(rgba(0,0,0,0.65),
    rgba(0,0,0,0.65)),
    url('https://images.unsplash.com/photo-1522202176988-66273c2fd55f');
    background-size:cover;
    background-position:center;
    color:white;
    text-align:center;
    padding:120px 20px;
}

.hero h1{
    font-size:3rem;
    margin-bottom:20px;
}

.hero p{
    font-size:1.2rem;
    max-width:800px;
    margin:0 auto 30px;
}

.btn{
    display:inline-block;
    background:#0077ff;
    color:white;
    padding:14px 28px;
    border-radius:5px;
    text-decoration:none;
    font-weight:bold;
}

/* Sections */

.subjects,
.services{
    padding:80px 0;
}

.subjects h2,
.services h2{
    text-align:center;
    margin-bottom:40px;
    color:#003366;
}

.bg-light{
    background:#f4f8fc;
}

.grid{
    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(300px,1fr));
    gap:25px;
}

.card{
    background:white;
    padding:25px;
    border-radius:10px;
    box-shadow:0 2px 10px rgba(0,0,0,0.1);
}

.card h3{
    color:#0056b3;
    margin-bottom:15px;
}

.card ul{
    padding-left:20px;
}

.card li{
    margin-bottom:8px;
}

/* CTA */

.cta{
    background:#003366;
    color:white;
    text-align:center;
    padding:80px 20px;
}

.cta h2{
    margin-bottom:15px;
}

.cta p{
    margin-bottom:25px;
}

.btn-white{
    background:white;
    color:#003366;
    text-decoration:none;
    padding:14px 28px;
    border-radius:5px;
    font-weight:bold;
}

/* Footer */

footer{
    background:#001f3f;
    color:white;
    text-align:center;
    padding:20px;
}

/* Mobile */

@media(max-width:768px){

    .hero h1{
        font-size:2.2rem;
    }

    .hero p{
        font-size:1rem;
    }

}