body{
    margin:0;
    font-family:Arial, sans-serif;
    line-height:1.6;
}

.container{
    width:90%;
    max-width:1100px;
    margin:auto;
}

header{
    background:#111;
    color:white;
    padding:15px 0;
}

header nav a{
    color:white;
    margin-left:20px;
    text-decoration:none;
}

.hero{
    background:#2563eb;
    color:white;
    padding:80px 0;
    text-align:center;
}

.section{
    padding:60px 0;
}

.grey{
    background:#f4f4f4;
}

.grid{
    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(220px,1fr));
    gap:20px;
}

.card{
    background:white;
    padding:20px;
    border-radius:6px;
    box-shadow:0 2px 6px rgba(0,0,0,0.1);
}

footer{
    background:#111;
    color:white;
    text-align:center;
    padding:20px;
}