/* KSI Quiz Skeleton — ESP, style-only */
.quiz-skeleton{
  position: relative;
  border: 1px solid #e5e7eb;
  border-radius: 16px;
  padding: 20px;
  background: #fff;
  box-shadow: 0 4px 18px rgba(0,0,0,.06);
  min-height: clamp(360px, 50vh, 620px);
  overflow: hidden;
}
.quiz-skeleton::before{
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, transparent 40%, rgba(0,0,0,0.04) 50%, transparent 60%);
  transform: translateX(-100%);
  animation: ksiShimmer 1.6s infinite;
  pointer-events: none;
}
@keyframes ksiShimmer { 100% { transform: translateX(100%); } }
@media (prefers-reduced-motion: reduce){ .quiz-skeleton::before{ display:none; } }

.ksi-skeleton-line{ height:18px; background:#eef2f7; border-radius:8px; margin:12px 0; }
.ksi-skeleton-line.short{ width:60%; }