body { font-family: system-ui; margin: 0; padding: 20px; background: #f5f5f5; }
header { display: flex; justify-content: space-between; align-items: center; }
nav button { margin-right: 10px; padding: 8px 16px; }
table { width: 100%; border-collapse: collapse; background: #fff; }
th, td { padding: 8px; border: 1px solid #ddd; text-align: left; }
button { cursor: pointer; }
input, select { padding: 6px; margin: 4px; }
.badge { padding: 2px 8px; border-radius: 4px; font-size: 0.8em; color: #fff; }
.pending { background: #fa0; }
.scanned { background: #888; }
.converted { background: #0a0; }
.active { background: #0a0; }
.inactive { background: #c00; }