body{font-family:Arial,Helvetica,sans-serif;background:#f7f7f7;color:#222;margin:0}
.container{max-width:960px;margin:20px auto;background:#fff;padding:20px;border-radius:6px}
.topbar{background:#1f2937;color:#fff;padding:10px 20px;display:flex;justify-content:space-between}
.box{max-width:420px;margin:60px auto;padding:20px;background:#fff}
input,textarea,select{padding:8px;margin-bottom:8px;width:100%;box-sizing:border-box}
button{padding:8px 12px;background:#2563eb;color:#fff;border:0;border-radius:4px}
table{width:100%;border-collapse:collapse}
table th,table td{border:1px solid #ddd;padding:8px;text-align:left}