* { box-sizing: border-box; }
body { font-family: system-ui, sans-serif; max-width: 1100px; margin: 0 auto; padding: 16px; color: #222; }
header { display: flex; justify-content: space-between; align-items: center; border-bottom: 1px solid #ccc; padding-bottom: 8px; margin-bottom: 16px; }
nav a { margin-right: 12px; text-decoration: none; color: #0a5; }
table { width: 100%; border-collapse: collapse; margin-top: 12px; }
th, td { border: 1px solid #ddd; padding: 6px 8px; text-align: left; font-size: 14px; }
th { background: #f5f5f5; }
form { margin-top: 16px; display: flex; flex-wrap: wrap; gap: 8px; }
input, select, button { padding: 6px 10px; font-size: 14px; }
button { background: #0a5; color: white; border: 0; cursor: pointer; }
pre { background: #f5f5f5; padding: 12px; overflow: auto; max-height: 400px; }