.whatsapp-flotante {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 1050;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: #25d366;
  color: #fff;
  display: grid;
  place-items: center;
  font-size: 1.8rem;
  box-shadow: 0 12px 30px rgba(37, 211, 102, .45);
  transition: transform .25s ease;
}

.whatsapp-flotante:hover {
  color: #fff;
  transform: scale(1.08);
}

.panel-admin {
  background: #f8f9fa;
  min-height: calc(100vh - 120px);
  padding: 2rem 0;
}

.panel-admin .card {
  border: 0;
  box-shadow: 0 8px 24px rgba(0, 0, 0, .08);
}

.navbar-panel {
  background: #111;
}

.navbar-panel .nav-link {
  color: rgba(255, 255, 255, .85);
  font-weight: 700;
  font-size: .85rem;
}

.navbar-panel .nav-link:hover {
  color: #e42f2f;
}

/* Panel administrativo — tablas y acciones en móvil */
.acciones-tabla {
  display: flex;
  flex-wrap: wrap;
  gap: .35rem;
}

.white-space-pre {
  white-space: pre-wrap;
}

@media (max-width: 767.98px) {
  .panel-admin {
    padding: 1rem 0;
  }

  .panel-admin .card {
    border-radius: .75rem;
  }

  .panel-admin h1.h3 {
    font-size: 1.35rem;
  }

  .acciones-tabla .btn {
    font-size: .75rem;
    padding: .25rem .5rem;
  }

  .whatsapp-flotante {
    bottom: 16px;
    right: 16px;
    width: 52px;
    height: 52px;
    font-size: 1.5rem;
  }
}

@media (max-width: 575.98px) {
  .navbar-panel .navbar-brand {
    font-size: 1rem;
  }

  .table-responsive {
    font-size: .85rem;
  }
}