/* Custom Scrollbars */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: #f1f5f9;
}
::-webkit-scrollbar-thumb {
  background: #cbd5e1;
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: #94a3b8;
}

/* Animations & Dropzone Drag state */
.drag-over {
  border-color: #0284c7 !important;
  background-color: #f0f9ff !important;
  transform: scale(1.01);
}

/* Transitions */
.course-card {
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}
.course-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
}

/* Modal iframe for PDF */
.pdf-iframe {
  width: 100%;
  height: 100%;
  border: none;
  background: #525659;
}