.course-title {
  text-align: center;
}
  .course-layout {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem 2rem 2rem;
  display: flex;
  gap: 2rem;
  align-items: flex-start;
}

.course-layout .main-content {
  width: 75%;
}

.course-layout .sidebar {
  width: 25%;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}


/* added 3/5/26 */

.loading-spinner {
/*  display: flex; */
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding: 30px 0;
  font-size: 1.3rem;
  font-weight: 600;
  color: #444;
}

.spinner {
  width: 36px;
  height: 36px;
  border: 4px solid #ccc;
  border-top-color: #444;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}