body{
    margin:0;
    font-family:Arial, sans-serif;
    background:#f4f6f9;
    color:#333;
}

header{
    background:#0d47a1;
    color:white;
    padding:40px;
    text-align:center;
}

nav{
    background:#1565c0;
    padding:15px;
    text-align:center;
}

nav a{
    color:white;
    text-decoration:none;
    margin:0 15px;
    font-weight:bold;
}

.hero{
    padding:80px 20px;
    text-align:center;
}

.hero h2{
    font-size:40px;
}

.hero button{
    padding:15px 30px;
    border:none;
    background:#0d47a1;
    color:white;
    border-radius:8px;
    cursor:pointer;
    font-size:16px;
}

.cards{
    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(250px,1fr));
    gap:20px;
    padding:40px;
}

.card{
    background:white;
    padding:25px;
    border-radius:12px;
    box-shadow:0 4px 10px rgba(0,0,0,0.1);
}

footer{
    background:#0d47a1;
    color:white;
    text-align:center;
    padding:20px;
    margin-top:40px;
}