body {
  background-color: #f5f7fb;
}

.navbar .nav-link {
  font-weight: 500;
}

.navbar .nav-link.active {
  text-decoration: underline;
}

.card-stat {
  border-radius: 18px;
  border: none;
  box-shadow: 0 10px 25px rgba(30, 136, 229, 0.12);
}

.table thead {
  background-color: #f1f5fb;
}

.form-control:focus {
  border-color: #1e88e5;
  box-shadow: 0 0 0 0.2rem rgba(30, 136, 229, 0.25);
}

.btn-primary {
  background: linear-gradient(135deg, #1e88e5, #1565c0);
  border: none;
}

.btn-outline-primary {
  border-color: #1e88e5;
  color: #1e88e5;
}

.btn-outline-primary:hover {
  background-color: #1e88e5;
  color: #fff;
}

.badge-status-online {
  background-color: #43a047;
}

.badge-status-offline {
  background-color: #9e9e9e;
}

.badge-status-pending {
  background-color: #fb8c00;
}

.table-responsive {
  border-radius: 14px;
  background-color: #fff;
  box-shadow: 0 8px 20px rgba(15, 23, 42, 0.08);
}

.login-card {
  max-width: 400px;
  border-radius: 20px;
  box-shadow: 0 25px 50px rgba(15, 23, 42, 0.15);
}