@keyframes confetti-fall{to{transform:translateY(100vh) rotate(2turn);opacity:0}}.quiz-complete:before{content:"🎉 🎊 ✨ 🎉 🎊 ✨";position:fixed;top:-50px;left:50%;transform:translateX(-50%);font-size:2rem;z-index:9999;pointer-events:none;animation:confetti-fall 3s linear forwards;letter-spacing:3rem;white-space:nowrap}