body { font-family: Arial, sans-serif; background:#f5f7fb; color:#222; padding:20px; }
.container { max-width:900px; margin:0 auto; background:#fff; padding:20px; border-radius:8px; box-shadow:0 4px 16px rgba(0,0,0,0.06); }
h1 { margin-top:0; }
.table { width:100%; border-collapse:collapse; margin:12px 0; }
.table th, .table td { border:1px solid #ddd; padding:8px; text-align:left; }
input[type=text] { padding:8px; width:300px; }
button { padding:8px 12px; cursor:pointer; }