body{
margin:0;
font-family:'Inter',sans-serif;
background:#f4f6fb;
}

.demo-banner{
background:#f59e0b;
color:white;
text-align:center;
padding:6px;
font-weight:600;
}

.pos-layout{
display:grid;
grid-template-columns:2fr 1fr;
height:100vh;
}

/* PRODUCTS */

.products{
padding:30px;
overflow:auto;
}

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

.product{
background:white;
padding:20px;
border-radius:10px;
box-shadow:0 5px 12px rgba(0,0,0,0.08);
cursor:pointer;
text-align:center;
transition:0.2s;
}

.product:hover{
transform:scale(1.05);
}

/* CART */

.cart{
background:#111827;
color:white;
padding:30px;
}

#cart-items{
list-style:none;
padding:0;
}

#cart-items li{
margin-bottom:10px;
}

.total{
margin-top:20px;
font-size:20px;
}

#checkout{
margin-top:20px;
width:100%;
padding:12px;
border:none;
border-radius:6px;
background:#10b981;
color:white;
font-size:16px;
cursor:pointer;
}