.quiz-skeleton{position:relative;border:1px solid #e5e7eb;border-radius:16px;padding:20px;background:#fff;box-shadow:0 4px 18px rgb(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%,rgb(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%}