body{font-family:Arial, Helvetica, sans-serif;background:#f4f7fb;color:#222;margin:0;padding:20px}
.container{max-width:960px;margin:20px auto;background:#fff;padding:18px;border-radius:8px;box-shadow:0 6px 18px rgba(0,0,0,0.06)}
h1,h2,h3{margin:8px 0}
button{padding:8px 12px;border-radius:6px;border:1px solid #ccc;background:#fff;cursor:pointer}
input,select{padding:8px;border:1px solid #ccc;border-radius:6px}
table{width:100%;border-collapse:collapse}
th,td{padding:8px;border:1px solid #e6e6e6;text-align:left}
th{background:#2c7be5;color:#fff}
.success{color:green;font-weight:bold}
.fail{color:red;font-weight:bold}
.small{font-size:0.9em;color:#666}