:root {
  --bs-primary: #1f3a8a;
  --bs-primary-rgb: 31,58,138;
}
body { background: #f5f7fb; font-family: system-ui,-apple-system,"Segoe UI",Roboto,sans-serif; }
.sidebar { width: 260px; min-height: 100vh; position: sticky; top: 0; }
.sidebar .nav-link { border-radius: 8px; padding: .55rem .8rem; }
.sidebar .nav-link:hover { background: rgba(255,255,255,.08); }
@media (max-width: 991.98px) { .sidebar { position: fixed; z-index: 1045; } }
.card { border: none; box-shadow: 0 1px 3px rgba(0,0,0,.06); }
.card-stat { transition: transform .15s; }
.card-stat:hover { transform: translateY(-2px); }
.login-bg { background: linear-gradient(135deg,#1f3a8a,#4f46e5); }
.login-card { max-width: 420px; width: 100%; border-radius: 18px; }
.select2-container .select2-selection--single { height: 38px; padding: 5px 8px; border: 1px solid #ced4da; }
.form-control, .form-select { min-height: 42px; }
@media (max-width: 767.98px) { h3 { font-size: 1.25rem; } }
.badge { font-weight: 500; }