body{
    margin:0;
    font-family:Arial;
    background:#f5f5f5;
}

.navbar{
    background:#001f4d;
    padding:15px;
    display:flex;
    justify-content:space-between;
    align-items:center;
}

.navbar ul{
    display:flex;
    gap:20px;
    list-style:none;
}

.navbar a{
    color:white;
    text-decoration:none;
}

.hero{
    height:90vh;
    background:url('../images/hero.jpg');
    background-size:cover;
    background-position:center;
}

.overlay{
    background:rgba(0,0,0,0.5);
    height:100%;
    display:flex;
    flex-direction:column;
    justify-content:center;
    align-items:center;
    color:white;
}

.btn{
    background:#0066ff;
    color:white;
    padding:12px 20px;
    text-decoration:none;
    margin:10px;
    border-radius:5px;
}

.product-grid{
    display:grid;
    grid-template-columns:repeat(3,1fr);
    gap:20px;
    padding:40px;
}

.card{
    background:white;
    padding:20px;
    border-radius:10px;
    text-align:center;
}

.card img{
    width:100%;
    height:250px;
    object-fit:cover;
}

.footer{
    background:#001f4d;
    color:white;
    text-align:center;
    padding:20px;
}