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14px, transparent 14px 20px);border-radius:2px;flex:1;height:4px}.grade-grid{grid-template-columns:repeat(auto-fit,minmax(290px,1fr));gap:28px;display:grid}.grade-card{text-align:center;border:3px solid var(--navy);box-shadow:var(--shadow);background:#fff;border-radius:18px;flex-direction:column;align-items:center;gap:6px;padding:30px 20px 22px;text-decoration:none;transition:transform .12s,box-shadow .12s;display:flex;position:relative}.grade-card:hover,.grade-card:focus-visible{box-shadow:7px 7px 0 var(--navy);outline:none;transform:translate(-2px,-2px)}.grade-card:active{box-shadow:1px 1px 0 var(--navy);transform:translate(3px,3px)}.grade-badge{background:var(--teal);color:#fff;border:3px solid var(--navy);min-width:46px;height:46px;box-shadow:2px 2px 0 var(--navy);border-radius:12px;place-items:center;padding:0 12px;font-size:1.5rem;font-weight:700;display:grid;position:absolute;top:-18px;left:16px}.grade-mascot{background:var(--teal-pale);border:3px solid var(--navy);border-radius:50%;place-items:center;width:108px;height:108px;font-size:4.2rem;line-height:1;display:grid}.grade-name{margin-top:6px;font-size:1.5rem;font-weight:700}.grade-tag{opacity:.85;min-height:2.9em;font-size:.95rem;font-weight:500}.grade-games{letter-spacing:6px;font-size:1.6rem}.play-btn{background:var(--teal);color:#fff;letter-spacing:.04em;border:2px solid var(--navy);box-shadow:2px 2px 0 var(--navy);border-radius:999px;margin-top:6px;padding:9px 26px;font-size:1.05rem;font-weight:700}.grade-hero{flex-wrap:wrap;align-items:center;gap:22px;margin:14px 0 28px;display:flex}.grade-hero h1{color:var(--teal);font-size:clamp(2rem,5vw,3rem)}.mascot{font-size:4.2rem;line-height:1;animation:2.8s ease-in-out infinite bob;display:inline-block}.mascot.big{background:var(--teal-pale);border:3px solid var(--navy);width:130px;height:130px;box-shadow:var(--shadow);border-radius:50%;place-items:center;font-size:5.6rem;display:grid}@keyframes bob{0%,to{transform:translateY(0)rotate(-3deg)}50%{transform:translateY(-8px)rotate(3deg)}}.mascot.mood-happy{animation:.6s jump}.mascot.mood-sad{animation:.6s wobble}@keyframes jump{0%{transform:translateY(0)scale(1)}40%{transform:translateY(-28px)scale(1.15)rotate(-8deg)}to{transform:translateY(0)scale(1)}}@keyframes wobble{0%,to{transform:rotate(0)}20%{transform:rotate(-12deg)}50%{transform:rotate(10deg)}80%{transform:rotate(-6deg)}}.bubble{border:3px solid var(--navy);box-shadow:2px 2px 0 var(--navy);background:#fff;border-radius:16px;max-width:460px;margin:6px 0 0;padding:8px 16px;font-weight:600;display:inline-block}.game-grid{grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:28px;display:grid}.game-card{--tone:var(--teal);text-align:center;border:3px solid var(--navy);box-shadow:6px 6px 0 var(--tone);background:#fff;border-radius:18px;flex-direction:column;align-items:center;gap:6px;padding:26px 18px 22px;text-decoration:none;transition:transform .12s,box-shadow 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h1{color:var(--teal);font-size:clamp(1.8rem,5vw,2.6rem)}.game-title p{margin:4px 0 0;font-size:1.05rem}.game-title-emoji{border:3px solid var(--navy);width:84px;height:84px;box-shadow:var(--shadow-sm);background:#fff;border-radius:16px;flex:none;place-items:center;font-size:3.6rem;display:grid}.level-grid{grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:22px;display:grid}.level-card{font:inherit;color:var(--ink);cursor:pointer;text-align:center;border:3px solid var(--navy);box-shadow:var(--shadow);background:#fff;border-radius:16px;flex-direction:column;align-items:center;gap:4px;padding:18px 14px;transition:transform .12s,box-shadow .12s;display:flex}.level-card:hover:not(:disabled),.level-card:focus-visible{box-shadow:7px 7px 0 var(--navy);outline:none;transform:translate(-2px,-2px)}.level-card:active:not(:disabled){box-shadow:1px 1px 0 var(--navy);transform:translate(3px,3px)}.level-card.done{background:var(--teal-pale)}.level-card.locked{opacity:.6;cursor:not-allowed;background:#eef2f5;border-color:#8a9bab;box-shadow:4px 4px #8a9bab}.level-num{background:var(--teal);color:#fff;border:3px solid var(--navy);border-radius:12px;place-items:center;width:52px;height:52px;font-size:1.7rem;font-weight:700;display:grid}.level-card.locked .level-num{background:#8a9bab;border-color:#6f8294}.level-name{font-size:1.15rem;font-weight:700}.level-blurb{opacity:.8;min-height:2.8em;font-size:.88rem}.tip{text-align:center;border:2px dashed var(--teal);background:#fff;border-radius:14px;margin-top:26px;padding:10px 16px;font-weight:500}.stars{gap:2px;display:inline-flex}.star{color:#cfd8df;line-height:1}.star.on{color:var(--gold);text-shadow:0 2px #c98f12}.stars-sm .star{font-size:1.6rem}.stars-lg .star{font-size:4rem}.stars-lg .star.on{animation:.6s backwards pop}@keyframes pop{0%{transform:scale(0)rotate(-90deg)}70%{transform:scale(1.3)rotate(10deg)}to{transform:scale(1)rotate(0)}}.progress-wrap{align-items:center;gap:14px;margin-bottom:20px;display:flex}.progress-bar{border:3px solid var(--navy);background:#fff;border-radius:999px;flex:1;height:20px;overflow:hidden}.progress-fill{background:repeating-linear-gradient(135deg, var(--teal) 0 12px, var(--teal-deep) 12px 24px);height:100%;transition:width .4s}.progress-text{white-space:nowrap;font-size:.95rem;font-weight:700}.play-area{grid-template-columns:190px 1fr;align-items:start;gap:24px;display:grid}.mascot-col{text-align:center;flex-direction:column;align-items:center;gap:10px;display:flex}.mascot-col .mascot{background:var(--teal-pale);border:3px solid var(--navy);width:130px;height:130px;box-shadow:var(--shadow-sm);border-radius:50%;place-items:center;font-size:5rem;display:grid}.mascot-col .bubble{font-size:.92rem}.question-card{border:3px solid var(--navy);box-shadow:7px 7px 0 var(--teal);text-align:center;background:#fff;border-radius:20px;padding:24px 22px}.q-prompt{margin:0 0 12px;font-size:1.3rem;font-weight:600}.q-equation{letter-spacing:2px;word-break:break-word;color:var(--navy);margin:8px 0 16px;font-size:clamp(2rem,7vw,3.3rem);font-weight:700}.choices{grid-template-columns:repeat(2,1fr);gap:14px;margin-top:12px;display:grid}.choice{font:inherit;color:var(--navy);cursor:pointer;border:3px solid var(--navy);min-height:74px;box-shadow:var(--shadow-sm);background:#fff;border-radius:16px;padding:14px 10px;font-size:clamp(1.5rem,5vw,2.1rem);font-weight:700;transition:transform .1s,box-shadow .1s,background .1s}.choice:hover:not(:disabled),.choice:focus-visible{background:var(--teal);color:#fff;box-shadow:5px 5px 0 var(--navy);outline:none;transform:translate(-1px,-1px)}.choice:active:not(:disabled){box-shadow:0 0 0 var(--navy);transform:translate(3px,3px)}.choice:disabled{cursor:default}.choice.right{background:var(--good);color:#fff;animation:.6s jump}.choice.wrong{background:var(--bad);color:#fff;animation:.6s wobble}.choice.dim{opacity:.4}.feedback{border:3px solid var(--navy);border-radius:14px;flex-wrap:wrap;justify-content:center;align-items:center;gap:16px;margin-top:18px;padding:12px 16px;font-size:1.2rem;font-weight:700;display:flex}.feedback.good{color:#135c38;background:#dcf5e8}.feedback.bad{color:#9a2a1d;background:#fde5e1}.next-btn,.big-btn{font:inherit;color:#fff;cursor:pointer;border:3px solid var(--navy);background:var(--teal);box-shadow:var(--shadow-sm);letter-spacing:.02em;border-radius:999px;padding:10px 28px;font-size:1.1rem;font-weight:700}.next-btn:hover,.big-btn:hover{box-shadow:5px 5px 0 var(--navy);transform:translate(-1px,-1px)}.next-btn:focus-visible,.big-btn:focus-visible{outline:4px solid var(--gold);outline-offset:3px}.big-btn.green{background:var(--teal)}.big-btn.orange{background:var(--coral)}.big-btn.blue{background:var(--navy)}.visual-emoji{flex-wrap:wrap;justify-content:center;gap:4px 10px;max-width:520px;margin:4px auto 8px;display:flex}.emoji-item{font-size:clamp(2rem,7vw,2.8rem);animation:2.6s ease-in-out infinite bob;display:inline-block}.visual-pie{width:190px;height:190px;margin:4px auto 8px;display:block}.visual-rect{width:min(100%,360px);height:auto;margin:4px auto 8px;display:block}.rect-label{fill:#14304a;font-family:inherit;font-size:22px;font-weight:700}.visual-coins{flex-wrap:wrap;justify-content:center;gap:10px;max-width:520px;margin:8px auto 14px;display:flex}.coin{border:3px solid var(--navy);width:62px;height:62px;box-shadow:2px 2px 0 var(--navy), inset 0 -4px 0 #0000001a;border-radius:50%;place-items:center;font-size:1.1rem;font-weight:700;display:grid}.coin.c1{color:#fff;background:#d98b4a;width:54px;height:54px}.coin.c5{background:#c9ced6;width:62px;height:62px}.coin.c10{background:#e4e8ee;width:50px;height:50px;font-size:1rem}.coin.c25{background:#b6bcc7;width:72px;height:72px;font-size:1.25rem}.coin.bill{background:#a8dcb4;border-radius:8px;width:100px;height:56px;font-size:1.5rem}.result{text-align:center;padding:20px 0 30px;position:relative}.result .mascot.big{margin:0 auto}.result h1{color:var(--teal);margin:18px 0 12px;font-size:clamp(2rem,6vw,3rem)}.result-score{margin:10px 0 22px;font-size:1.3rem}.result-actions{flex-wrap:wrap;justify-content:center;gap:14px;display:flex}.confetti{pointer-events:none;z-index:5;position:fixed;inset:0;overflow:hidden}.confetti span{border-radius:3px;width:12px;height:18px;animation:linear forwards fall;position:absolute;top:-20px}@keyframes fall{to{top:105vh;transform:rotate(720deg)}}@media (width<=800px){.hero{grid-template-columns:1fr}.hero-photo{order:-1}}@media (width<=720px){.math-root{font-size:16px}.logo img{height:62px;margin:-6px 0}.logo-text{padding-left:10px;font-size:.75rem}.play-area{grid-template-columns:1fr}.mascot-col{text-align:left;flex-direction:row;justify-content:center}.mascot-col .mascot{width:88px;height:88px;font-size:3.4rem}.choices{gap:10px}}@media (prefers-reduced-motion:reduce){.math-root *,.math-root :before,.math-root :after{transition:none!important;animation:none!important}}.star-pill{align-items:center;gap:6px;text-decoration:none;transition:transform .12s;display:inline-flex}.star-pill:hover{transform:translate(-1px,-1px)}.star-pill-label{text-transform:uppercase;letter-spacing:.08em;opacity:.85;font-size:.8rem;font-weight:600}@media (width<=520px){.star-pill-label{display:none}}.pass-banner{border:2px dashed var(--teal);background:#fff;border-radius:14px;margin:0 0 26px;padding:10px 16px;font-weight:500}.pass-banner.ok{border:3px solid var(--navy);background:#dcf5e8;border-style:solid}.reward-grid{grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:24px;margin-bottom:30px;display:grid}.reward-card{border:3px solid var(--navy);text-align:center;box-shadow:6px 6px 0 var(--gold);background:#fff;border-radius:18px;flex-direction:column;align-items:center;gap:4px;padding:20px 20px 18px;display:flex}.reward-card.fresh{animation:.6s backwards pop}.reward-card.locked{color:#566879;background:#f1f4f7;border-color:#8a9bab;box-shadow:4px 4px #8a9bab}.reward-kicker{text-transform:uppercase;letter-spacing:.1em;margin:0;font-size:.8rem;font-weight:700}.reward-title{color:var(--teal);margin:2px 0 0;font-size:1.5rem;font-weight:700}.reward-card.locked .reward-title{color:#566879}.reward-detail{margin:0 0 8px;font-size:.95rem}.reward-code-row{flex-wrap:wrap;justify-content:center;align-items:center;gap:10px;margin:4px 0 10px;display:flex}.reward-code{background:var(--teal-pale);border:2px dashed var(--teal);letter-spacing:.12em;color:var(--navy);user-select:all;border-radius:10px;padding:6px 16px;font-size:1.4rem;font-weight:700}.copy-btn{font:inherit;cursor:pointer;color:var(--navy);border:2px solid var(--navy);box-shadow:2px 2px 0 var(--navy);background:#fff;border-radius:999px;padding:6px 14px;font-size:.9rem;font-weight:600}.shop-btn{background:var(--navy);color:#fff;border:2px solid var(--navy);box-shadow:3px 3px 0 var(--coral);border-radius:999px;padding:9px 22px;font-weight:700;text-decoration:none}.reward-note{opacity:.8;margin:8px 0 0;font-size:.82rem}.reward-unlock{margin-top:30px}.reward-unlock h2{color:var(--navy);margin:0 0 18px;font-size:1.7rem}.mini-bar{background:#fff;border:2px solid #8a9bab;border-radius:999px;width:100%;max-width:220px;height:14px;margin-top:6px;overflow:hidden}.mini-bar>div{background:var(--teal);height:100%}.stars-hero{margin:14px 0 26px}.stars-hero h1{font-size:clamp(2.2rem,6vw,3.2rem)}.stars-hero h1 em{color:var(--teal);font-style:normal}.stars-hero p{margin:8px 0 0;font-size:1.1rem}.stat-row{grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:20px;margin-bottom:34px;display:grid}.stat{border:3px solid var(--navy);box-shadow:var(--shadow);text-align:center;background:#fff;border-radius:16px;flex-direction:column;padding:14px 18px;display:flex}.stat-num{color:var(--teal);font-size:2rem;font-weight:700;line-height:1.2}.stat-label{font-size:.9rem;font-weight:500}.board-grade{border:3px solid var(--navy);box-shadow:var(--shadow);background:#fff;border-radius:18px;margin-bottom:26px;overflow:hidden}.board-grade-head{background:var(--teal-pale);border-bottom:3px solid var(--navy);flex-wrap:wrap;align-items:center;gap:14px;padding:14px 18px;display:flex}.board-mascot{font-size:2.4rem;line-height:1}.board-grade-title{flex:1;min-width:140px}.board-grade-title h3{margin:0;font-size:1.35rem}.board-grade-title a{text-decoration:none}.board-grade-title span{font-size:.9rem;font-weight:500}.status-pill{color:#566879;white-space:nowrap;background:#fff;border:2px solid #8a9bab;border-radius:999px;padding:3px 14px;font-size:.85rem;font-weight:700}.status-pill.ok{background:var(--good);border-color:var(--navy);color:#fff}.status-pill.small{padding:2px 10px;font-size:.78rem}.board-games{grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:0;display:grid}.board-game{border-right:2px solid var(--teal-pale);padding:14px 18px 16px}.board-game-head{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px;margin-bottom:8px;display:flex}.board-game-head a{font-weight:700;text-decoration:none}.board-game-head a:hover{color:var(--teal)}.board-levels{margin:0;padding:0;list-style:none}.board-levels li{opacity:.7;border-top:1px solid #e6edf2;align-items:center;gap:10px;padding:5px 0;display:flex}.board-levels li.done{opacity:1}.lv-num{color:#fff;background:#cfd8df;border-radius:6px;flex:none;place-items:center;width:24px;height:24px;font-size:.8rem;font-weight:700;display:grid}.board-levels li.done .lv-num{background:var(--teal)}.lv-name{flex:1;font-size:.9rem;font-weight:500}.chip-stars .star{font-size:1.15rem}.math-root .star-pill,.math-root .shop-btn{color:#fff}.avatar{height:auto;display:block;overflow:visible}.mascot.avatar-wrap{box-shadow:none;background:0 0;border:0;border-radius:0;width:auto;height:auto;font-size:0;display:block}.mascot-col .mascot.avatar-wrap{width:170px;height:auto}.mascot-col .avatar{width:170px}.grade-avatar{flex:none;width:130px}.grade-avatar .avatar{width:130px}.grade-mascot{background:0 0;border:0;border-radius:0;width:auto;height:auto;display:block}.grade-mascot .avatar{filter:drop-shadow(0 6px #14304a1f);width:100px;animation:3s ease-in-out infinite bob}.grade-guide{text-transform:uppercase;letter-spacing:.1em;color:var(--teal);margin-top:-2px;font-size:.8rem;font-weight:600}.duo{justify-content:center;align-items:flex-end;gap:10px;display:flex}.duo .avatar{width:150px}@media (width<=520px){.duo .avatar{width:110px}}.meet{align-items:flex-end;gap:22px;margin-top:8px;display:flex}.meet-pal{flex-direction:column;align-items:center;gap:4px;display:flex}.meet-pal .avatar{width:190px;animation:3s ease-in-out infinite bob}.meet-pal:nth-child(2) .avatar{animation-delay:-1.2s}.meet-bubble{border:3px solid var(--navy);box-shadow:2px 2px 0 var(--navy);white-space:nowrap;background:#fff;border-radius:14px;padding:4px 12px;font-size:.9rem;font-weight:600}.board-mascot{flex:none;width:56px}.board-mascot .avatar{width:56px}.pop-pal{z-index:20;pointer-events:none;align-items:flex-end;gap:6px;display:flex;position:fixed;bottom:0}.pop-pal.from-right{flex-direction:row;animation:2.8s forwards pop-up;right:14px}.pop-pal.from-left{flex-direction:row-reverse;animation:2.8s forwards pop-up;left:14px}.pop-avatar{width:120px;margin-bottom:-26px}.pop-bubble,.peek-bubble{border:3px solid var(--navy);box-shadow:3px 3px 0 var(--navy);background:#fff;border-radius:16px;max-width:220px;margin-bottom:70px;padding:8px 14px;font-size:.95rem;font-weight:600}@keyframes pop-up{0%{transform:translateY(110%)}12%{transform:translateY(0)}85%{transform:translateY(0)}to{transform:translateY(110%)}}.peek-pal{z-index:15;align-items:flex-end;gap:6px;display:flex;position:fixed;bottom:0}.peek-pal.peek-cam{animation:6.5s forwards peek-right;right:0}.peek-pal.peek-coop{flex-direction:row-reverse;animation:6.5s forwards peek-left;left:0}.peek-avatar{width:110px;margin-bottom:-40px}.peek-bubble{padding-right:30px;position:relative}.peek-close{cursor:pointer;color:var(--navy);background:0 0;border:0;font-size:1.3rem;line-height:1;position:absolute;top:2px;right:6px}@keyframes peek-right{0%{transform:translate(110%)}8%{transform:translate(0)}92%{transform:translate(0)}to{transform:translate(110%)}}@keyframes peek-left{0%{transform:translate(-110%)}8%{transform:translate(0)}92%{transform:translate(0)}to{transform:translate(-110%)}}@media (width<=520px){.peek-bubble,.pop-bubble{max-width:160px;font-size:.85rem}.pop-avatar,.peek-avatar{width:84px}}.avatar.avatar-head{overflow:hidden}.mode-tag{background:var(--teal-pale);border:2px solid var(--teal);color:var(--teal-deep);border-radius:999px;margin-top:4px;padding:1px 10px;font-size:.75rem;font-weight:700}.level-card.locked .mode-tag{display:none}.type-answer{flex-direction:column;align-items:center;gap:10px;margin-top:8px;display:flex}.type-label{opacity:.85;font-size:.95rem;font-weight:600}.type-input{font:inherit;text-align:center;color:var(--navy);border:3px solid var(--navy);width:min(100%,300px);box-shadow:inset 0 3px 0 #14304a14, var(--shadow-sm);caret-color:var(--teal);background:#fff;border-radius:16px;padding:8px 12px;font-size:2.2rem;font-weight:700}.type-input:focus{outline:4px solid var(--gold);outline-offset:2px}.keypad{grid-template-columns:repeat(3,1fr);gap:8px;width:min(100%,300px);display:grid}.key{font:inherit;color:var(--navy);cursor:pointer;border:3px solid var(--navy);min-height:54px;box-shadow:2px 2px 0 var(--navy);background:#fff;border-radius:14px;padding:8px 0;font-size:1.5rem;font-weight:700}.key.alt{background:var(--teal-pale);font-size:1.05rem}.key:hover{background:var(--teal);color:#fff}.key:active{box-shadow:0 0 0 var(--navy);transform:translate(2px,2px)}.key-row{grid-column:1/-1;gap:8px;display:flex}.key-row .key{flex:1}.check-btn{background:var(--good);margin-top:4px;font-size:1.2rem}.check-btn:disabled{opacity:.45;cursor:not-allowed}.typed-result{margin:10px 0 0;font-size:1.5rem}.typed-result.right strong{color:var(--good)}.typed-result.wrong strong{color:var(--bad);text-decoration:line-through}.flag-icon{width:clamp(2.6rem,9vw,3.6rem);height:auto;display:block}.flag-item{line-height:0}.choice{overflow-wrap:anywhere;line-height:1.2}.bonus-tag{background:var(--gold);border:2px solid var(--navy);letter-spacing:.08em;text-transform:uppercase;vertical-align:middle;border-radius:999px;margin-left:8px;padding:0 10px;font-size:.7rem;font-weight:700}.progress-panel{border:3px solid var(--navy);box-shadow:var(--shadow);background:#fff;border-radius:18px;margin:0 0 34px;padding:16px 20px}.pp-main{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;display:flex}.pp-total{align-items:center;gap:14px;display:flex}.pp-star{font-size:2.6rem;line-height:1}.pp-count{margin:0;font-size:1.1rem}.pp-count strong{color:var(--teal);font-size:2rem}.pp-sub{opacity:.8;margin:0;font-size:.85rem}.reset-btn{font:inherit;cursor:pointer;color:var(--navy);border:2px solid var(--navy);box-shadow:2px 2px 0 var(--navy);background:#fff;border-radius:999px;padding:6px 16px;font-size:.9rem;font-weight:600}.reset-btn:hover{background:#fde5e1}.pp-warn{border:2px solid var(--gold);background:#fff6dc;border-radius:12px;margin:12px 0 0;padding:8px 14px;font-size:.9rem;font-weight:500}.confirm-box{border:3px solid var(--navy);background:#fde5e1;border-radius:14px;margin-top:14px;padding:14px 16px}.confirm-title{color:#9a2a1d;margin:0 0 4px;font-size:1.2rem;font-weight:700}.confirm-box p{margin:0 0 10px}.confirm-actions{flex-wrap:wrap;gap:12px;display:flex}.big-btn.danger{background:var(--bad)}.pp-msg{min-height:0;color:var(--teal);margin:0;font-weight:600}.pp-msg:not(:empty){margin-top:10px}