*,:before,:after{box-sizing:border-box;margin:0;padding:0}:root{--bg:#e0f7fa;--surface:#fff;--surface2:#e1f5fe;--accent:#ff5252;--accent2:#ffca28;--correct:#00c853;--wrong:#ff1744;--text:#1a1a2e;--text-muted:#5c6bc0;--opt-a:#ff6b6b;--opt-b:#339af0;--opt-c:#fcc419;--opt-d:#51cf66}html,body{width:100%;height:100%;overflow-x:hidden}body{color:var(--text);-webkit-user-select:none;user-select:none;-webkit-tap-highlight-color:transparent;background:linear-gradient(160deg,#a8edea 0%,#fedbf5 50%,#fff9c4 100%) fixed;min-height:100vh;font-family:Nunito,Arial Rounded MT Bold,Arial,sans-serif}.container{flex-direction:column;justify-content:center;align-items:center;min-height:100vh;padding:16px;display:flex;position:relative;overflow:hidden}.track{z-index:0;background:repeating-linear-gradient(90deg,sienna 0 40px,#0000 40px 60px);border-top:5px solid 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#00000026;background:linear-gradient(135deg,#ff6b6b,#ff9f43);border:none;border-radius:50px;align-items:center;gap:12px;padding:22px 52px;font-family:inherit;font-size:clamp(1.4rem,5vw,1.9rem);font-weight:900;transition:transform .15s,box-shadow .15s;animation:2.5s ease-in-out infinite pulse;display:inline-flex;box-shadow:0 8px 28px #ff6b6b80,0 0 #ff6b6b4d}@keyframes pulse{0%,to{box-shadow:0 8px 28px #ff6b6b80,0 0 #ff6b6b4d}50%{box-shadow:0 8px 28px #ff6b6b80,0 0 0 18px #ff6b6b00}}.start-btn:hover,.start-btn:active{animation:none;transform:scale(1.07);box-shadow:0 12px 40px #ff6b6bb3}.badges{flex-wrap:wrap;justify-content:center;gap:10px;margin-top:28px;display:flex}.badge{color:#5c6bc0;background:#fff;border:3px solid #c5cae9;border-radius:50px;padding:10px 18px;font-size:1rem;font-weight:800;box-shadow:0 4px 12px #5c6bc026}.quiz-screen{z-index:1;width:100%;max-width:560px;animation:.4s fadeIn}@keyframes 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#b9fbc0;border-radius:20px;flex-direction:column;align-items:center;gap:4px;padding:12px 20px;animation:.3s feedbackIn;display:flex;box-shadow:0 4px 16px #00c85340}.feedback-wrong{background:#fff;border:3px solid #ffd6d6;border-radius:20px;flex-direction:column;align-items:center;gap:4px;padding:12px 20px;animation:.3s feedbackIn;display:flex;box-shadow:0 4px 16px #ff174433}@keyframes feedbackIn{0%{opacity:0;transform:scale(.8)}to{opacity:1;transform:scale(1)}}.feedback-emoji{font-size:2.6rem;display:block}.feedback-text{font-size:1.15rem;font-weight:900}.feedback-correct .feedback-text{color:#00a846}.feedback-wrong .feedback-text{color:#e00032}.next-btn{color:#fff;cursor:pointer;text-shadow:0 1px 3px #00000026;background:linear-gradient(135deg,#845ef7,#5c7cfa);border:none;border-radius:20px;width:100%;margin-top:14px;padding:18px;font-family:inherit;font-size:1.25rem;font-weight:900;transition:transform .12s,box-shadow .12s;animation:.3s fadeIn;box-shadow:0 6px 20px #845ef766}.next-btn:hover{transform:translateY(-3px);box-shadow:0 10px 28px #845ef78c}.results-screen{text-align:center;z-index:1;width:100%;max-width:480px;animation:.6s fadeIn}.results-trophy{filter:drop-shadow(0 8px 24px #ffca2880);margin-bottom:8px;font-size:clamp(80px,20vw,130px);animation:.8s cubic-bezier(.34,1.56,.64,1) trophySpin;display:block}@keyframes trophySpin{0%{transform:scale(0)rotate(-180deg)}to{transform:scale(1)rotate(0)}}.results-screen h2{color:#1a1a2e;margin-bottom:8px;font-size:clamp(1.9rem,6vw,2.8rem);font-weight:900}.score-display{background:linear-gradient(135deg,#ff5252,#ff9f43,#ffd43b);-webkit-text-fill-color:transparent;filter:drop-shadow(0 4px 8px #ff6b6b40);-webkit-background-clip:text;background-clip:text;margin:16px 0;font-size:clamp(3.5rem,14vw,5.5rem);font-weight:900;line-height:1;display:block}.score-label{color:#5c6bc0;margin-bottom:24px;font-size:1.1rem;font-weight:800}.results-message{color:#1a1a2e;background:#fff;border:4px solid #e3f2fd;border-radius:24px;margin-bottom:24px;padding:22px;font-size:1.25rem;font-weight:800;line-height:1.5;box-shadow:0 8px 28px #5c6bc026}.stars{letter-spacing:6px;margin-bottom:10px;font-size:2.2rem;animation:.8s .3s both starPop;display:block}@keyframes starPop{0%{opacity:0;transform:scale(0)}to{opacity:1;transform:scale(1)}}.result-actions{flex-direction:column;gap:12px;display:flex}.play-again-btn{color:#fff;cursor:pointer;text-shadow:0 2px 4px #00000026;background:linear-gradient(135deg,#ff6b6b,#ff9f43);border:none;border-radius:50px;padding:22px 44px;font-family:inherit;font-size:1.5rem;font-weight:900;transition:transform .15s,box-shadow .15s;box-shadow:0 8px 28px #ff6b6b73}.play-again-btn:hover{transform:scale(1.05);box-shadow:0 12px 36px #ff6b6ba6}.confetti-piece{z-index:1000;pointer-events:none;border-radius:3px;width:12px;height:12px;animation:linear forwards confettiFall;position:fixed}@keyframes confettiFall{0%{opacity:1;transform:translateY(-20px)rotate(0)}to{opacity:0;transform:translateY(110vh)rotate(720deg)}}@media (max-width:400px){.options-grid{grid-template-columns:1fr}.option-btn{min-height:64px}}@media (min-height:700px){.question-card{padding:32px 28px 28px}}