body{font-family:Arial,sans-serif;background:#f8f9fa;margin:0;padding:20px}.container{max-width:900px;margin:auto}h1{text-align:center;color:#222}input[type=file]{display:block;margin:20px auto}table{width:100%;border-collapse:collapse;margin-top:20px}th,td{padding:8px;border:1px solid #ccc}th{background:#eee}.stats{background:#fff;padding:15px;margin-top:20px;border-radius:6px}