:root { --brand: #0d6efd; }
body { background: #f7f7fb; }
.card { border: 0; box-shadow: 0 6px 20px rgba(0,0,0,.06); }
.navbar { box-shadow: 0 2px 16px rgba(0,0,0,.06); }
.small-muted { color: #6c757d; font-size: .9rem; }
.tree ul { list-style: none; padding-left: 1rem; }
.tree li { margin: .25rem 0; }
.tree .badge { font-weight: 500; }