/* Exam cards enhanced visuals */
.exam-card {
  border: 1px solid rgba(0,0,0,.06);
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
  border-radius: .85rem;
}
.exam-card:hover, .exam-card:focus-within {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0,0,0,.12);
  border-color: rgba(13,110,253,.35);
}
.exam-badge {
  background: rgba(13,110,253,.1);
  color: #0d6efd;
  font-weight: 600;
}
.exam-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: #0b3b74;
  background: linear-gradient(135deg, #dbeafe 0%, #bfdbfe 100%);
}
/* subtle focus outline for keyboard navigation */
.exam-card[tabindex="0"]:focus {
  outline: 3px solid rgba(13,110,253,.35);
  outline-offset: 2px;
}
/* grid breathing room on small screens */
#examGrid .col { display: block; }