:root{--ink:#17272c;--cream:#fff9e9;--yellow:#ffcd38;--orange:#ff7045;--teal:#1f9d8d;--blue:#1f5673}*{box-sizing:border-box}body{margin:0;background:var(--cream);color:var(--ink);font-family:Arial,sans-serif}button{font:inherit;color:inherit;cursor:pointer}button:focus-visible{outline:4px solid white;box-shadow:0 0 0 7px var(--blue)}main{min-height:100vh;padding-bottom:42px;position:relative;overflow:hidden;background:radial-gradient(circle at 5% 4%,white 0 4%,transparent 4.2%),linear-gradient(135deg,transparent 76%,#ffcd3820 76%)}header{height:90px;max-width:1180px;margin:auto;padding:14px 24px;display:flex;align-items:center;justify-content:space-between;border-bottom:2px solid #17272c25}.brand{display:flex;align-items:center;gap:12px;background:none;border:0;text-align:left}.brand>b{width:54px;height:54px;display:grid;place-items:center;background:var(--yellow);border:3px solid var(--ink);border-radius:14px;box-shadow:4px 4px 0 var(--ink);font-size:19px;transform:rotate(-3deg)}.brand strong,.brand small{display:block}.brand strong{font-size:18px;letter-spacing:.08em}.brand small{color:#5b6b6e;font-weight:700;margin-top:3px}.best{border:2px solid var(--ink);border-radius:30px;background:#fff;padding:10px 16px;font-weight:900;box-shadow:3px 3px 0 var(--ink)}.setup{max-width:1180px;margin:auto;padding:66px 24px 90px;display:grid;grid-template-columns:.9fr 1.1fr;gap:70px}.intro{position:relative}.eyebrow{font-size:11px;letter-spacing:.18em;font-weight:900;color:var(--teal)}h1{font-size:clamp(50px,6vw,76px);line-height:.9;letter-spacing:-.055em;margin:18px 0 24px;font-weight:1000}h1 em{font-style:normal;color:var(--orange)}.intro>p:not(.eyebrow){font-size:19px;line-height:1.5;color:#526266}.intro>aside{display:flex;gap:12px;align-items:center;background:#fff;border:2px solid var(--ink);border-radius:14px;padding:15px;margin-top:28px;box-shadow:5px 5px 0 var(--teal);font-size:14px}.intro>aside:first-letter{color:#fff;background:var(--teal)}.factory-art{position:absolute;top:410px;left:15px;width:500px;display:flex;align-items:end}.machine,.big-machine{width:130px;height:120px;display:grid;place-items:center;font-size:46px;background:var(--teal);border:4px solid var(--ink);border-radius:25px 25px 8px 8px;box-shadow:6px 6px 0 var(--ink)}.belt{height:58px;flex:1;border:4px solid var(--ink);background:repeating-linear-gradient(90deg,var(--yellow) 0 28px,#ffe8a0 28px 56px);display:flex;align-items:center;justify-content:center;font-size:28px;overflow:hidden}.panel{background:#fff;border:3px solid var(--ink);border-radius:20px;box-shadow:10px 11px 0 var(--ink);overflow:hidden;position:relative}.panel-title{display:flex;justify-content:space-between;background:var(--blue);color:#fff;padding:14px 20px;font-size:11px;letter-spacing:.14em}.panel-title span{color:#8ef0c9}fieldset{border:0;border-bottom:2px dashed #d6d3c7;margin:0;padding:19px 23px}legend{font-size:14px;font-weight:900;padding-top:16px}.facts{display:grid;grid-template-columns:repeat(6,1fr);gap:8px}.facts button,.choices button{border:2px solid #cad1cf;background:#f8faf8;border-radius:9px;padding:11px 5px;font-weight:900}.facts button.selected,.choices button.selected{background:var(--yellow);border-color:var(--ink);box-shadow:2px 3px 0 var(--ink);transform:translateY(-1px)}.quick{margin-top:10px;display:flex;gap:15px}.quick button{border:0;background:none;color:var(--blue);text-decoration:underline;font-size:12px;font-weight:800}.choices{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}.choices small{font-size:9px}.primary{margin:20px 23px;width:calc(100% - 46px);background:var(--orange);color:#fff;border:3px solid var(--ink);border-radius:11px;padding:15px 18px;font-weight:1000;letter-spacing:.04em;box-shadow:4px 5px 0 var(--ink);display:flex;justify-content:space-between}.primary:hover{transform:translateY(-2px)}.primary:disabled{filter:grayscale(1)}.stats{display:flex;gap:8px}.stats span{min-width:90px;text-align:center;background:#fff;border:2px solid var(--ink);border-radius:10px;padding:7px 12px;box-shadow:2px 3px 0 var(--ink)}.stats small,.stats b{display:block}.stats small{font-size:9px;letter-spacing:.1em;color:#65767a}.stats b{font-size:20px}.play{max-width:1180px;margin:auto;padding:30px 24px}.progress{height:14px;background:#d8ddd5;border:2px solid var(--ink);border-radius:10px;overflow:hidden;margin:0 auto 30px;max-width:900px}.progress span{display:block;height:100%;background:repeating-linear-gradient(135deg,var(--yellow) 0 10px,#ffad33 10px 20px);transition:width .3s}.game{display:grid;grid-template-columns:.8fr 1.1fr .7fr;gap:28px;align-items:center}.output{display:flex;flex-direction:column;align-items:center;gap:12px}.output .belt{width:100%;gap:3px}.output>b{font-size:11px;letter-spacing:.12em}.big-machine{width:165px;height:155px}.card{background:#fff;border:3px solid var(--ink);border-radius:21px;padding:20px;text-align:center;box-shadow:9px 10px 0 var(--ink)}.card.correct{border-color:var(--teal);box-shadow:9px 10px 0 var(--teal)}.card.wrong{border-color:var(--orange);animation:shake .2s 2}.card>p:first-child{font-size:10px;font-weight:900;letter-spacing:.13em;color:#637478}.card h2{font-size:clamp(52px,6vw,75px);margin:20px 0 13px;letter-spacing:-.04em}.answer{height:74px;max-width:225px;margin:auto;border:3px solid var(--ink);border-radius:12px;background:#faf5e7;display:grid;place-items:center;font-size:44px;font-weight:1000}.feedback{height:18px;font-size:12px;font-weight:800;color:#596a6e}.pad{max-width:280px;margin:auto;display:grid;grid-template-columns:repeat(3,1fr);gap:7px}.pad button{background:#fff;border:2px solid var(--ink);border-radius:8px;padding:9px;font-weight:900;box-shadow:2px 2px 0 var(--ink)}.pad button:active{transform:translate(2px,2px);box-shadow:none}.pad .go{background:var(--teal);color:#fff}.score{background:var(--blue);color:#fff;border:3px solid var(--ink);border-radius:16px;padding:20px;box-shadow:6px 7px 0 var(--ink)}.score>small{letter-spacing:.12em;color:#c3d8e0}.score>strong{display:block;font-size:36px}.score>p{font-size:10px;line-height:1.5;color:#c3d8e0}.score hr{border:0;border-top:1px solid #557c90}.score div{display:flex;justify-content:space-between;margin:13px 0;font-size:12px}.on{color:#8ff3c6}.off{color:#ffad98}@keyframes shake{50%{transform:translate(5px)}}.results{max-width:820px;margin:auto;padding:35px 24px 70px;text-align:center}.medal{font-size:75px;filter:drop-shadow(5px 5px 0 #d5a81d)}.results h1{font-size:58px;margin:8px}.results>p:not(.eyebrow){color:#526266}.total{max-width:420px;margin:24px auto;background:var(--blue);color:#fff;border:3px solid var(--ink);border-radius:16px;padding:18px;box-shadow:7px 7px 0 var(--ink)}.total small{font-size:10px;letter-spacing:.14em}.total strong{display:block;font-size:50px;color:var(--yellow)}.total p{font-size:10px}.report{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.report article{background:#fff;border:2px solid var(--ink);border-radius:12px;padding:14px;font-size:27px;box-shadow:3px 4px 0 var(--ink)}.report b,.report small{display:block}.report b{font-size:22px;margin:5px}.report small{font-size:9px;letter-spacing:.08em;font-weight:900}.actions{display:flex;align-items:center;justify-content:center;gap:18px}.actions .primary{width:310px;margin:0}.actions>button:last-child{border:0;background:none;text-decoration:underline;font-weight:900;color:var(--blue)}footer{position:absolute;bottom:0;left:0;right:0;background:var(--ink);color:#dbe3e0;padding:13px;text-align:center;font-size:9px;letter-spacing:.13em}@media(max-width:850px){.setup{grid-template-columns:1fr;padding-top:35px}.intro{text-align:center}.factory-art{display:none}.intro>aside{max-width:480px;margin-left:auto;margin-right:auto}.game{grid-template-columns:1fr 1fr}.output{display:none}.score{grid-column:1/-1}.results{padding-top:25px}}@media(max-width:560px){header{height:72px;padding:9px 14px}.brand>b{width:44px;height:44px}.brand small{display:none}.stats{gap:4px}.stats span{min-width:64px;padding:5px}.stats span:last-child{display:none}.stats b{font-size:16px}.setup{padding:25px 14px 70px;gap:30px}h1{font-size:48px}.intro>p:not(.eyebrow){font-size:16px}.panel{box-shadow:6px 7px 0 var(--ink)}fieldset{padding:17px 14px}.facts{grid-template-columns:repeat(4,1fr)}.choices{gap:5px}.choices button{font-size:11px}.play{padding:18px 12px}.game{display:block}.card{padding:14px}.card h2{font-size:54px;margin:15px}.score{margin-top:22px;display:grid;grid-template-columns:repeat(3,1fr);text-align:center}.score>strong{font-size:27px}.score>small,.score>p,.score>hr{display:none}.score div{flex-direction:column}.report{grid-template-columns:repeat(2,1fr)}.results h1{font-size:43px}.actions{flex-direction:column}.actions .primary{width:100%}}@media(prefers-reduced-motion:reduce){*{animation:none!important}}