body { font-family: Arial, sans-serif; max-width: 900px; margin: 30px auto; padding: 0 20px; }
h2 { margin-top: 30px; }
input, select { padding: 4px; margin-right: 6px; }
table { border-collapse: collapse; width: 100%; margin-top: 8px; }
th, td { border: 1px solid #999; padding: 5px 8px; text-align: left; }
th { background: #eee; }