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

header{
background:#3b82f6;
color:white;
padding:20px;
text-align:center;
}

.container{
max-width:1000px;
margin:auto;
padding:20px;
}

.card{
background:white;
padding:20px;
margin-bottom:20px;
border-radius:10px;
box-shadow:0 5px 15px rgba(0,0,0,0.1);
}

.balance{
font-size:50px;
font-weight:bold;
color:#22c55e;
}

input, select{
width:100%;
padding:10px;
margin-top:10px;
border-radius:6px;
border:1px solid #ccc;
}

button{
margin-top:10px;
padding:10px;
width:100%;
border:none;
background:#3b82f6;
color:white;
border-radius:6px;
cursor:pointer;
}

button:hover{
background:#2563eb;
}

table{
width:100%;
border-collapse:collapse;
margin-top:10px;
}

th,td{
padding:10px;
border-bottom:1px solid #eee;
}

.pointsPlus{
color:green;
font-weight:bold;
}

.pointsMinus{
color:red;
font-weight:bold;
}