.loading-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(255, 255, 255, 0.8);
  z-index: 9999;
  display: flex;
  justify-content: center;
  align-items: center;
}

.hidden {
  display: none !important;
}

.spinner-container {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.spinner {
  border: 4px solid rgba(0, 0, 0, 0.1);
  border-top: 4px solid #3498db;
  border-radius: 50%;
  width: 40px;
  height: 40px;
  animation: spin 1s linear infinite;
}

.erro-cronograma {
  position: fixed;
  top: 40%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: rgba(255, 255, 255, 0.95);
  padding: 16px 24px;
  border: 1px solid red;
  border-radius: 6px;
  color: red;
  font-weight: bold;
  font-size: 16px;
  z-index: 9999;
  text-align: center;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.spinner-container p {
  margin-top: 10px;
  font-size: 14px;
  color: #555;
}