:root{--purple:#6d28d9;--purple2:#8b5cf6;--yellow:#fbbf24;--orange:#f97316;--green:#16a34a;--red:#dc2626;--blue:#0284c7;--ink:#20233b;--muted:#667085;--bg:#f7f5ff;--card:#fff;--line:#e6e1f4;--shadow:0 14px 38px rgba(72,40,120,.14);font-family:"Trebuchet MS",system-ui,-apple-system,sans-serif;color:var(--ink)}*{box-sizing:border-box}body{margin:0;min-height:100vh;background:radial-gradient(circle at 12% 8%,#fff4bd 0,transparent 22%),radial-gradient(circle at 90% 25%,#e9dcff 0,transparent 28%),var(--bg)}button,input,select{font:inherit}button{cursor:pointer}.hidden{display:none!important}.screen{display:none;max-width:1180px;margin:auto;padding:34px 24px 70px}.screen.active{display:block;animation:appear .3s ease}.compact-screen{max-width:850px}@keyframes appear{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}.topbar{position:sticky;top:0;z-index:20;display:flex;justify-content:space-between;align-items:center;padding:10px max(18px,calc((100% - 1180px)/2));background:rgba(255,255,255,.94);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}.brand-mini{display:flex;gap:8px;align-items:center;border:0;background:none;color:var(--purple);font-size:1rem}.brand-mini span{font-size:1.6rem}.status-pills{display:flex;gap:9px;flex-wrap:wrap;justify-content:flex-end}.pill{border:1px solid var(--line);border-radius:999px;padding:9px 13px;background:white;white-space:nowrap;color:var(--ink)}button.pill:hover{border-color:var(--purple)}.money{background:#ecfdf3;border-color:#bbf7d0}.stars{background:#fffbeb;border-color:#fde68a}.start-screen{min-height:100vh;max-width:none!important;padding:34px 20px!important;display:none;place-items:center;grid-template-columns:minmax(260px,430px) minmax(330px,540px);gap:clamp(30px,6vw,90px)}.start-screen.active{display:grid}.market-scene{position:relative;width:min(420px,90vw);height:420px;border-radius:45% 55% 48% 52%;background:linear-gradient(145deg,#fef3c7,#fde68a);box-shadow:var(--shadow);display:grid;place-items:center}.shop{font-size:12rem;filter:drop-shadow(0 16px 10px #bb7f3940)}.sun{position:absolute;top:35px;right:50px;font-size:4rem}.basket{position:absolute;bottom:28px;left:42px;font-size:5rem;transform:rotate(-5deg)}.start-card{background:rgba(255,255,255,.95);border:1px solid #fff;padding:clamp(25px,5vw,48px);border-radius:30px;box-shadow:var(--shadow)}.eyebrow{color:var(--purple);font-weight:900;letter-spacing:.11em;font-size:.78rem}.start-card h1{font-size:clamp(2.4rem,6vw,4.6rem);line-height:.9;margin:11px 0 0;color:var(--purple)}.subtitle{font-size:clamp(1.25rem,3vw,1.8rem);margin:10px 0 28px;color:var(--orange);font-weight:800}.start-card>label,.answer-card label{font-weight:800;display:block;margin-bottom:8px}.start-card>input,.settings-card input,.settings-card select{width:100%;padding:14px 16px;border:2px solid var(--line);border-radius:13px;background:#fff;font-size:1rem}.start-card>input:focus,.currency-input:focus-within,.settings-card input:focus,.settings-card select:focus{outline:3px solid #c4b5fd;border-color:var(--purple)}.level-picker{border:0;padding:0;margin:25px 0}.level-picker legend{font-weight:800;margin-bottom:10px}.level-picker{display:grid;grid-template-columns:repeat(3,1fr);gap:9px}.level-picker label{position:relative}.level-picker input{position:absolute;opacity:0}.level-picker span{display:flex;min-height:85px;flex-direction:column;justify-content:center;border:2px solid var(--line);padding:10px;border-radius:14px;text-align:center;font-weight:900}.level-picker small{display:block;font-size:.72rem;color:var(--muted);font-weight:600;margin-top:4px}.level-picker input:checked+span{border-color:var(--purple);background:#f1eafe;color:var(--purple);box-shadow:0 0 0 3px #ddd0ff}.start-actions{display:grid;gap:10px}.btn{border:0;border-radius:13px;padding:13px 18px;font-weight:900;min-height:48px;transition:.18s transform,.18s box-shadow}.btn:hover{transform:translateY(-2px);box-shadow:0 7px 17px #4c1d9525}.btn:active{transform:translateY(0)}.btn.primary{color:white;background:linear-gradient(135deg,var(--purple),var(--purple2))}.btn.secondary{color:#92400e;background:#fef3c7}.btn.ghost{color:var(--purple);background:#f3f0fa}.btn.mission{color:#854d0e;background:#fef08a}.btn.yes{background:#dcfce7;color:#166534}.btn.no{background:#fee2e2;color:#991b1b}.btn.big{min-height:58px;font-size:1.05rem}.btn.full{width:100%}.field-error{color:var(--red);min-height:20px;margin:7px 0 0}.welcome-row{display:flex;align-items:center;justify-content:space-between;gap:20px}.welcome-row h2,.section-heading h2{font-size:clamp(1.5rem,4vw,2.4rem);margin:4px 0}.budget-banner{display:flex;align-items:center;gap:17px;background:linear-gradient(100deg,#4c1d95,#7c3aed);color:white;border-radius:22px;padding:20px 25px;margin:22px 0;box-shadow:var(--shadow)}.budget-icon{font-size:2.6rem}.budget-banner b{font-size:1.25rem}.budget-banner p{margin:4px 0 0;color:#ede9fe}.category-strip{display:flex;gap:9px;overflow-x:auto;padding:5px 1px 16px;scrollbar-width:thin}.category-btn{border:1px solid var(--line);background:white;border-radius:999px;padding:10px 16px;white-space:nowrap;font-weight:800}.category-btn.active{background:var(--ink);color:white;border-color:var(--ink)}.product-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.product-card{background:var(--card);border:2px solid transparent;border-radius:20px;padding:18px;box-shadow:0 7px 22px #4c1d9512;transition:.2s}.product-card:hover{border-color:#c4b5fd;transform:translateY(-3px)}.product-emoji{height:90px;display:grid;place-items:center;border-radius:16px;background:linear-gradient(145deg,#fff7d6,#f5efff);font-size:4rem}.product-card h3{margin:14px 0 4px;font-size:1.1rem}.product-category{font-size:.78rem;color:var(--muted)}.price-row{display:flex;justify-content:space-between;align-items:center;margin-top:14px}.price-row b{font-size:1.16rem;color:var(--purple)}.add-btn{border:0;background:var(--yellow);color:#713f12;font-weight:900;border-radius:10px;padding:9px 11px}.market-footer{position:sticky;bottom:15px;display:flex;align-items:center;justify-content:space-between;gap:18px;margin-top:25px;padding:13px 15px 13px 20px;background:rgba(255,255,255,.96);border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow)}.market-footer p{margin:0}.back-link{background:none;border:0;color:var(--purple);font-weight:800;padding:8px 0 20px}.section-heading{display:flex;gap:15px;align-items:center;margin-bottom:24px}.section-heading.center{justify-content:center;text-align:center}.section-icon{display:grid;place-items:center;width:64px;height:64px;border-radius:19px;background:#ede9fe;font-size:2rem}.cart-list{display:grid;gap:10px}.cart-item{display:grid;grid-template-columns:1fr auto auto;gap:16px;align-items:center;background:white;padding:14px 17px;border-radius:15px;border:1px solid var(--line)}.cart-product{display:flex;align-items:center;gap:13px}.cart-product span{font-size:2rem}.cart-product small{display:block;color:var(--muted)}.quantity{display:flex;align-items:center;gap:10px}.quantity button{width:34px;height:34px;border-radius:10px;border:1px solid var(--line);background:#f8f7fc;font-weight:900}.remove{border:0;background:none;color:var(--red);font-weight:800}.thinking-box{display:flex;gap:15px;background:#fff8d8;border:1px solid #fde68a;border-radius:16px;padding:16px;margin:22px 0}.thinking-box span{font-size:1.8rem}.thinking-box p{margin:0}.empty-cart{text-align:center;background:white;border-radius:18px;padding:40px;color:var(--muted)}.stepper{display:flex;align-items:center;justify-content:center;gap:8px;margin-bottom:30px;overflow:auto}.stepper span{white-space:nowrap;padding:8px 11px;border-radius:999px;background:#eceaf2;color:#777;font-size:.78rem;font-weight:800}.stepper .on{background:var(--purple);color:#fff}.stepper .done{background:#dcfce7;color:#166534}.receipt{background:white;border:1px dashed #b8afca;border-radius:14px;padding:18px;margin:15px auto 20px;max-width:600px}.receipt-row{display:flex;justify-content:space-between;border-bottom:1px dotted #ddd5ea;padding:8px 0}.receipt-row:last-child{border-bottom:0}.answer-card,.question-card{background:white;border-radius:22px;padding:clamp(20px,5vw,35px);box-shadow:var(--shadow)}.currency-input{display:flex;align-items:center;border:2px solid var(--line);border-radius:13px;margin:10px 0 14px;background:white;overflow:hidden}.currency-input span{font-size:1.35rem;font-weight:900;padding:12px 0 12px 16px;color:var(--purple)}.currency-input input{border:0;outline:0;width:100%;font-size:1.7rem;font-weight:900;padding:11px;color:var(--ink)}.feedback{display:none;margin-top:13px;padding:13px;border-radius:12px;font-weight:800;line-height:1.45}.feedback.show{display:block}.feedback.good{background:#dcfce7;color:#166534}.feedback.try{background:#fff7d6;color:#854d0e}.hint{background:#eef6ff;border-left:5px solid var(--blue);padding:15px;margin-top:13px;border-radius:8px;line-height:1.7}.question-card{text-align:center}.question-icon{font-size:4rem}.compare-cards{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:12px;margin:25px 0}.compare-cards div{padding:18px 10px;border-radius:14px;background:#f6f3fc}.compare-cards small,.register-display small,.delivered small,.change-equation small,.stars-earned small{display:block;color:var(--muted);font-weight:800;font-size:.73rem;letter-spacing:.06em;margin-bottom:5px}.compare-cards b{font-size:1.4rem}.yes-no{display:grid;grid-template-columns:1fr 1fr;gap:12px}.checkout-layout{display:grid;grid-template-columns:.75fr 1.4fr;gap:22px}.register-panel,.payment-panel{border-radius:23px;padding:25px;background:white;box-shadow:var(--shadow)}.register-panel{text-align:center;background:linear-gradient(145deg,#3b176f,#6d28d9);color:white}.cashier{font-size:5rem}.register-panel h2{font-size:1.6rem}.register-display{background:#20103b;border:4px solid #a78bfa;padding:22px;border-radius:13px;margin:25px 0;color:#6ee7b7}.register-display small{color:#ddd6fe}.register-display b{font-family:monospace;font-size:2rem}.delivered{display:flex;align-items:center;gap:12px;background:#f6f3fc;padding:15px;border-radius:14px;margin-bottom:20px}.delivered b{font-size:1.4rem;margin-right:auto}.delivered button{border:0;background:none;color:var(--red);font-weight:800}.money-picker{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-bottom:20px}.money-btn{border:2px solid transparent;border-radius:11px;padding:14px 8px;font-weight:900;box-shadow:0 3px 8px #0001}.money-btn.note{background:#d1fae5;color:#065f46;border-color:#6ee7b7}.money-btn.coin{aspect-ratio:1.25;border-radius:50%;background:#fef3c7;color:#854d0e;border-color:#fbbf24}.money-btn:hover{filter:brightness(.96);transform:scale(1.03)}.change-equation{display:grid;grid-template-columns:1fr auto 1fr auto 1fr;align-items:center;gap:12px;margin:25px auto;max-width:680px}.change-equation div{background:white;border-radius:15px;padding:20px;text-align:center;box-shadow:0 5px 15px #0000000c}.change-equation>span{font-size:2rem;font-weight:900}.change-equation b{font-size:1.3rem}.mystery{font-size:2rem;font-weight:900;color:var(--purple)}.change-selected{max-width:600px;margin:15px auto}.final-screen{text-align:center}.trophy{font-size:5rem}.final-screen h2{font-size:clamp(2rem,5vw,3rem);margin:7px}.report-card{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;background:white;padding:20px;border-radius:20px;box-shadow:var(--shadow);margin:23px 0;text-align:left}.report-card div{display:flex;justify-content:space-between;padding:12px;background:#f7f5fc;border-radius:10px}.report-card b{color:var(--purple)}.stars-earned{background:#fffbeb;border:1px solid #fde68a;border-radius:17px;padding:17px;margin:18px 0}.stars-earned div{font-size:2.3rem;margin-top:5px}.final-actions{display:grid;grid-template-columns:1fr 1fr;gap:10px}.final-actions .ghost{grid-column:1/-1}.mission-result{border-radius:13px;padding:13px;margin:16px 0;font-weight:900}.mission-result.success{background:#dcfce7;color:#166534}.mission-result.fail{background:#fff7d6;color:#854d0e}.teacher-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}.settings-card,.progress-card{background:white;border-radius:20px;padding:25px;box-shadow:var(--shadow)}.settings-card h3,.progress-card h3{margin-top:0}.settings-card>label{display:block;font-weight:800;margin-bottom:16px}.settings-card label input,.settings-card label select{margin-top:7px}.switch-row{display:flex!important;align-items:center;justify-content:space-between;padding:11px 0;border-bottom:1px solid var(--line)}.switch-row input{width:46px!important;height:25px;accent-color:var(--purple)}.stat-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:20px 0}.stat{background:#f6f3fc;padding:15px;border-radius:14px}.stat span{display:block;font-size:1.7rem;font-weight:900;color:var(--purple)}.stat small{color:var(--muted)}.privacy-note{font-size:.85rem;color:var(--muted);text-align:center}.dialog-emoji{font-size:3.5rem}dialog{border:0;border-radius:20px;padding:28px;text-align:center;max-width:360px;box-shadow:var(--shadow)}dialog::backdrop{background:#1d13355c}#confetti{position:fixed;inset:0;pointer-events:none;z-index:100;overflow:hidden}.confetti-piece{position:absolute;top:-20px;width:10px;height:16px;animation:fall 1.8s ease-in forwards}@keyframes fall{to{transform:translateY(105vh) rotate(720deg);opacity:.2}}@media(max-width:850px){.start-screen{grid-template-columns:1fr}.market-scene{height:200px}.shop{font-size:8rem}.sun{font-size:2.5rem}.basket{font-size:3rem}.product-grid{grid-template-columns:repeat(2,1fr)}.checkout-layout,.teacher-grid{grid-template-columns:1fr}.market-scene{display:none}}@media(max-width:560px){.screen{padding:24px 14px 55px}.topbar{align-items:flex-start;padding:8px 10px}.brand-mini b{display:none}.status-pills{gap:4px}.pill{font-size:.78rem;padding:8px}.start-card{padding:24px 18px}.level-picker{grid-template-columns:1fr}.level-picker span{min-height:60px}.welcome-row{align-items:flex-start;flex-direction:column}.product-grid{gap:9px}.product-card{padding:10px}.product-emoji{font-size:3rem;height:70px}.price-row{align-items:flex-start;flex-direction:column;gap:8px}.add-btn{width:100%}.market-footer{bottom:8px}.market-footer p{display:none}.cart-item{grid-template-columns:1fr auto}.cart-item>.remove{grid-column:1/-1}.stepper{justify-content:flex-start}.compare-cards{grid-template-columns:1fr}.compare-cards>span{display:none}.money-picker{grid-template-columns:repeat(2,1fr)}.change-equation{grid-template-columns:1fr auto 1fr}.change-equation>*:nth-child(4),.change-equation>*:nth-child(5){display:none}.report-card,.final-actions{grid-template-columns:1fr}.final-actions .ghost{grid-column:auto}.stat-grid{grid-template-columns:1fr 1fr}}