body {
  background-color: #f4f6f9;
}
.app-navbar {
  background: linear-gradient(135deg, #198754, #146c43);
}
.card {
  border: none;
  border-radius: 12px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.06);
}
.stat-card {
  border-radius: 14px;
  color: #fff;
  padding: 1.25rem 1.5rem;
}
.stat-card h3 {
  font-weight: 700;
  margin-bottom: 0;
}
.stat-card small {
  opacity: .85;
}
.bg-grad-green { background: linear-gradient(135deg, #198754, #20c997); }
.bg-grad-blue  { background: linear-gradient(135deg, #0d6efd, #4dabf7); }
.bg-grad-orange{ background: linear-gradient(135deg, #fd7e14, #ffc078); }
.bg-grad-red   { background: linear-gradient(135deg, #dc3545, #ff8787); }

.table thead th {
  background-color: #eef1f5;
  border-bottom: 2px solid #dee2e6;
  white-space: nowrap;
}
.login-wrapper {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #198754, #0d6efd);
}
.login-card {
  width: 100%;
  max-width: 380px;
  border-radius: 16px;
}
.btn-quick {
  min-width: 90px;
}
@media (max-width: 576px) {
  .stat-card { margin-bottom: .75rem; }
}