body { font-family: Arial, sans-serif; background:mintcream; padding:20px;text-align:center; }
.box { background:#fff; padding:18px; max-width:900px; margin:10px auto; border-radius:6px; box-shadow:0 2px 10px rgba(0,0,0,0.05); }
input, select { width:100%; padding:8px; margin:6px 0; box-sizing:border-box; }
button { padding:8px 12px; margin-right:8px; background-color:red;}
.table { width:100%; border-collapse:collapse; }
.table td, .table th { border:1px solid red; padding:6px; }
.error { background:#ffdede; padding:8px; border:1px solid #ffb3b3; }
.ok { background:#e6ffe6; padding:8px; border:1px solid #b3ffb3; }
a { color:#0066cc; text-decoration:none; }