body{
margin:0;
font-family:Arial;
background:#cfe8ff;
}

.sidebar{
width:200px;
background:#2d6cdf;
color:white;
height:100vh;
position:fixed;
padding:20px;
display:flex;
flex-direction:column;
}

.sidebarTop{
display:flex;
flex-direction:column;
gap:10px;
}

.logoutBtn{
margin-top:auto;
margin-bottom:80px;
}

.sidebar button{
width:100%;
padding:12px;
}

.main{
margin-left:220px;
padding:20px;
}

.loginInfo{
background:white;
padding:20px;
border-radius:8px;
margin-bottom:20px;
}

#loginDisplay{
font-size:28px;
font-weight:bold;
}

.layout{
display:flex;
gap:30px;
}

#products{
display:grid;
grid-template-columns:repeat(4,1fr);
gap:15px;
width:800px;
}

.product{
background:white;
padding:10px;
border-radius:8px;
cursor:pointer;
}

.product img{
width:60px;
float:right;
}

.cart{
width:300px;
background:white;
padding:15px;
border-radius:8px;
}

.bigBtn{
padding:15px;
font-size:18px;
margin-top:10px;
width:100%;
}

.salesLayout{
display:grid;
grid-template-columns:650px 350px;
gap:40px;
}

table{
background:white;
border-collapse:collapse;
width:100%;
}

td,th{
border:1px solid #ccc;
padding:6px;
}

.sumBtn{
padding:15px 30px;
font-size:18px;
}

.bottomButtons{
margin-top:40px;
display:flex;
justify-content:center;
gap:40px;
}

.modal{
display:none;
position:fixed;
top:0;
left:0;
width:100%;
height:100%;
background:rgba(0,0,0,0.5);
}

.modalContent{
background:white;
padding:25px;
margin:200px auto;
width:380px;
text-align:center;
border-radius:10px;
position:relative;
}

.closeBtn{
position:absolute;
top:8px;
right:10px;
border:none;
background:none;
font-size:20px;
cursor:pointer;
}

.modal input{
width:100%;
padding:10px;
margin-bottom:10px;
}

.modal select{
width:100%;
padding:10px;
margin-bottom:10px;
}