body { font-family: -apple-system, Segoe UI, Roboto, Arial, sans-serif; }
.card { border: none; box-shadow: 0 1px 3px rgba(0,0,0,.08); }
.stat-card .stat-value { font-size: 1.8rem; font-weight: 700; }
.table td, .table th { vertical-align: middle; }
canvas { max-height: 320px; }