.sidebar { min-height: 100vh; }
.brand-badge{
  width: 36px; height: 36px; border-radius: 12px;
  display: grid; place-items: center;
  background: #111827; color: #fff; font-weight: 700;
}
.nav-item{
  display:block;
  padding: .55rem .75rem;
  margin: .15rem .35rem;
  border-radius: .9rem;
  text-decoration:none;
  color:#334155;
  font-weight: 500;
}
.nav-item:hover{ background:#f1f5f9; color:#0f172a; }
.nav-item.active{ background:#0f172a; color:#fff; }
.card{ border-radius: 1rem; }


/* Loading overlay (padrão Zait Interno) */
.loading-overlay{
  position: fixed;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  background: rgba(15, 23, 42, .35);
  backdrop-filter: blur(2px);
  z-index: 2000;
}
.loading-overlay.show{ display:flex; }
.loading-card{
  background: #fff;
  border-radius: 1rem;
  box-shadow: 0 12px 30px rgba(0,0,0,.15);
  padding: 1.25rem 1.25rem;
  min-width: 280px;
  max-width: 92vw;
}
.loading-card .small{ color:#64748b; }