body { background: #f8f9fa; }
.navbar { box-shadow: 0 2px 4px rgba(0,0,0,0.04); }
.table thead { background: #e9ecef; }
.card { box-shadow: 0 2px 8px rgba(0,0,0,0.05); }
.btn-primary { background: #0056b3; border: none; }
.btn-primary:hover { background: #003d80; }
.form-control:focus { border-color: #0056b3; box-shadow: 0 0 0 0.2rem rgba(0,86,179,.25); }