body{font-family:Arial;background:#f1f5f9;margin:0}
.header{background:#111827;color:#fff;padding:15px;text-align:center}
.main{padding:15px}
.cards{display:flex;gap:10px}
.card{flex:1;padding:15px;color:#fff;border-radius:10px}
.total{background:#3b82f6}
.returned{background:#22c55e}
.pending{background:#ef4444}
table{width:100%;margin-top:20px;background:#fff;border-collapse:collapse}
th,td{padding:10px;border:1px solid #ddd;text-align:center}
.navbar{position:fixed;bottom:0;width:100%;display:flex;justify-content:space-around;background:#fff;padding:10px}