:root{--bg: #fff8e7;--card: #ffffff;--ink: #2b2d42;--muted: #6c6f85;--primary: #3b5bdb;--primary-dark: #364fc7;--accent: #ffb703;--good: #237a35;--bad: #c92a2a;--radius: 20px;--shadow: 0 6px 0 rgba(43, 45, 66, .12);font-family:Nunito,Segoe UI,system-ui,-apple-system,sans-serif;color:var(--ink);background:var(--bg)}*{box-sizing:border-box}body{margin:0;min-height:100vh;background:radial-gradient(circle at 20% 0%,#ffe8a3 0,transparent 40%),var(--bg)}h1,h2,h3{margin:0 0 .5rem}button{font:inherit;color:inherit;cursor:pointer}:focus-visible{outline:4px solid var(--primary);outline-offset:2px}.counter:focus:not(:focus-visible){outline:none}.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}.btn{min-height:44px;border:3px solid transparent;border-radius:999px;padding:.6rem 1.2rem;font-weight:800;font-size:1.1rem;background:var(--card);box-shadow:var(--shadow);transition:transform .1s}.btn:active{transform:translateY(3px);box-shadow:none}.btn-primary{background:var(--primary);color:#fff}.btn-ghost{background:transparent;border-color:var(--primary);color:var(--primary-dark);box-shadow:none}.btn-small{min-width:44px;padding:.3rem .8rem;font-size:.95rem}.btn:disabled{opacity:.5;cursor:not-allowed;box-shadow:none}.menu,.game-page{max-width:960px;margin:0 auto;padding:1.25rem}.menu-header{display:flex;justify-content:space-between;align-items:flex-start;gap:1rem}.menu h1{font-size:clamp(1.8rem,5vw,2.8rem)}.tagline{margin:0;color:var(--muted);font-size:1.15rem}.lang-switch{display:inline-flex;align-items:center;background:var(--card);padding:.25rem;border-radius:9999px;box-shadow:var(--shadow);border:2px solid #e0e5f2;gap:.25rem}.lang-pill-btn{display:inline-flex;align-items:center;gap:.45rem;padding:.4rem .85rem;border-radius:9999px;border:0;background:transparent;color:var(--muted);font-weight:700;font-size:.95rem;cursor:pointer;transition:all .2s cubic-bezier(.4,0,.2,1)}.lang-pill-btn:hover{color:var(--text);background:#f1f3f9}.lang-pill-btn.active{background:var(--primary);color:#fff;box-shadow:0 2px 6px #3b5bdb59}.lang-flag{display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;transition:transform .2s cubic-bezier(.4,0,.2,1)}.lang-pill-btn:hover .lang-flag{transform:scale(1.08)}.lang-text{font-weight:800}.total-stars-wrapper{display:flex;align-items:center;gap:.8rem;margin:.8rem 0}.total-stars{font-size:1.3rem;margin:0}.btn-reset-stars{display:inline-flex;align-items:center;gap:.3rem;padding:.3rem .75rem;border-radius:9999px;border:1.5px solid #cbd5e1;background:transparent;color:var(--muted);font-size:.85rem;font-weight:700;cursor:pointer;transition:all .2s ease}.btn-reset-stars:hover{color:#dc2626;border-color:#ef4444;background:#fef2f2}.in-game-level-switch{display:inline-flex;align-items:center;background:#f1f5f9;padding:3px;border-radius:9999px;gap:3px;border:1px solid #cbd5e1}.in-game-level-btn{border:0;background:transparent;padding:.35rem .75rem;border-radius:9999px;font-size:.85rem;font-weight:800;color:#475569;cursor:pointer;transition:all .15s ease}.in-game-level-btn:hover:not(.active){background:#e2e8f0;color:var(--ink)}.in-game-level-btn.active{background:var(--primary);color:#fff;box-shadow:0 2px 5px #4f46e559}.win-level-select{margin:1.2rem 0 .5rem;display:flex;flex-direction:column;align-items:center;gap:.5rem}.win-level-label{font-size:.95rem;font-weight:700;color:var(--muted);margin:0}.level-picker{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:.8rem;margin-bottom:1.5rem}.level-btn{display:flex;flex-direction:column;gap:.2rem;padding:.9rem;border-radius:var(--radius);border:4px solid transparent;background:var(--card);box-shadow:var(--shadow)}.level-btn.selected{border-color:var(--primary);background:#edf2ff}.level-name{font-weight:800;font-size:1.2rem}.level-age{color:var(--muted)}.game-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:1rem}.game-card{display:flex;flex-direction:column;align-items:center;gap:.4rem;padding:1.2rem;text-align:center;border:0;border-radius:var(--radius);background:var(--card);box-shadow:var(--shadow);transition:transform .15s}.game-card:hover{transform:translateY(-4px) rotate(-1deg)}.game-icon{font-size:3.5rem}.game-name{font-size:1.3rem;font-weight:800}.game-desc{color:var(--muted)}.star-row{display:inline-flex;gap:.15rem;font-size:1.6rem}.star-on{color:var(--accent)}.star-off{color:#d0d4e4}.game{display:flex;flex-direction:column;align-items:center;gap:.8rem;text-align:center}.game-header{display:flex;align-items:center;gap:1rem;width:100%}.game-header h2{flex:1;margin:0;text-align:center;padding-right:8rem}.counter{margin:0;color:var(--muted);font-weight:700}.hint-text,.question-text{margin:0;font-size:1.15rem}.question{font-size:clamp(2rem,8vw,3.5rem);font-weight:800}.feedback{min-height:2rem;margin:0;font-size:1.4rem;font-weight:800}.feedback.correct{color:var(--good)}.feedback.wrong{color:var(--bad)}.warning{min-height:1.5rem;margin:0;color:var(--bad);font-weight:700}.options,.toolbar,.palette,.win-actions{display:flex;flex-wrap:wrap;justify-content:center;align-items:center;gap:.7rem}.option-btn{min-width:5rem;min-height:4rem;font-size:1.8rem}.win{display:flex;flex-direction:column;align-items:center;gap:.5rem;padding:1.5rem;background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);animation:pop .4s ease-out}.win-emoji{font-size:4rem}.win .star-row{font-size:3rem}.balloons{display:flex;flex-wrap:wrap;justify-content:center;gap:1.2rem;padding:1rem 0}.balloon{width:7rem;height:8.5rem;border:0;border-radius:50% 50% 48% 48%;color:#fff;font-size:2.2rem;font-weight:800;text-shadow:0 2px 0 rgba(0,0,0,.25);box-shadow:inset -8px -10px #0000001f;animation:float 3s ease-in-out infinite;cursor:pointer;position:relative;transition:transform .15s ease-out}.balloon:hover:not(:disabled){transform:translateY(-6px) scale(1.05)}.balloon.popping{animation:balloon-pop .35s cubic-bezier(.1,.9,.2,1) forwards!important;pointer-events:none}.balloon.shaking{animation:balloon-shake .4s ease-in-out!important}.balloon-sparks{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center;font-size:3rem;animation:spark-burst .4s ease-out forwards;pointer-events:none}@keyframes balloon-pop{0%{transform:scale(1);opacity:1}40%{transform:scale(1.35) rotate(-3deg);opacity:.9}to{transform:scale(0) rotate(15deg);opacity:0}}@keyframes spark-burst{0%{transform:scale(.3);opacity:0}50%{transform:scale(1.3);opacity:1}to{transform:scale(1.7);opacity:0}}@keyframes balloon-shake{0%,to{transform:translate(0)}20%,60%{transform:translate(-8px) rotate(-4deg)}40%,80%{transform:translate(8px) rotate(4deg)}}.question-row{display:flex;align-items:center;justify-content:center;gap:.8rem}.audio-btn{font-size:1.5rem;padding:.35rem .6rem;border-radius:var(--radius);cursor:pointer;background:var(--card);border:2px solid #e0e5f2;box-shadow:var(--shadow);transition:transform .15s ease,background .15s ease}.audio-btn:hover{transform:scale(1.1);background:#edf2ff}.compare-row{display:flex;align-items:center;justify-content:center;gap:1rem;flex-wrap:wrap}.compare-side{min-width:7rem;padding:1rem 1.2rem;font-size:clamp(1.6rem,6vw,2.4rem);font-weight:800;background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow)}.croc{font-size:4rem}.memory-grid{display:grid;gap:.6rem;width:100%;max-width:560px}.memory-card{min-height:4.5rem;padding:.3rem;border:3px solid var(--primary);border-radius:14px;background:var(--primary);color:#fff;font-size:clamp(1.1rem,4.5vw,1.5rem);font-weight:800;overflow-wrap:anywhere}.memory-card.pictures{font-size:clamp(.9rem,3.6vw,1.2rem);line-height:1.15;overflow-wrap:normal}.memory-card.open{background:var(--card);color:var(--ink)}.memory-card.matched{border-color:var(--good);background:#d3f9d8}.pattern-row{display:flex;flex-wrap:wrap;justify-content:center;gap:.6rem}.pattern-item{display:grid;place-items:center;min-width:4rem;height:4rem;padding:0 .5rem;font-size:1.8rem;font-weight:800;background:var(--card);border-radius:14px;box-shadow:var(--shadow)}.pattern-item.missing{border:3px dashed var(--primary)}.pizza{width:min(70vw,280px);min-width:200px;height:auto}.slice{stroke:#fff;stroke-width:1.2}.slice-off{fill:#f8d98c}.slice-on{fill:#e8553d}.slice-tappable{cursor:pointer}.fraction{display:inline-flex;flex-direction:column;align-items:center;line-height:1.1}.fraction-bar{width:1.4em;height:3px;background:currentColor}.sudoku-grid{display:grid;width:min(92vw,420px);aspect-ratio:1;border:4px solid var(--ink);border-radius:8px;background:var(--ink);gap:1px}.sudoku-grid[data-size="9"]{width:min(96vw,440px)}.sudoku-grid:not([data-size="9"]) .sudoku-cell{min-height:44px}.sudoku-cell{display:grid;place-items:center;border:0;padding:0;background:var(--card);font-size:clamp(1.1rem,5vw,2rem)}.sudoku-cell.fixed{background:#fff3bf}.sudoku-cell.selected{background:#d0ebff;outline:3px solid var(--primary);outline-offset:-3px}.sudoku-cell.conflict{background:#ffc9c9}.sudoku-cell.box-right{margin-right:2px}.sudoku-cell.box-bottom{margin-bottom:2px}.palette-btn{min-width:3.5rem;font-size:1.6rem}.robot-layout{display:flex;flex-direction:column;align-items:center;gap:1.2rem;width:100%;max-width:600px;margin:0 auto}.robot-grid{display:grid;gap:6px;width:100%;max-width:380px;background:#cbd5e1;padding:8px;border-radius:var(--radius);box-shadow:inset 0 2px 4px #00000014}.robot-cell{aspect-ratio:1;background:var(--card);border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:clamp(1.4rem,5vw,2.2rem);box-shadow:0 1px 2px #0000000d;position:relative;-webkit-user-select:none;user-select:none}.cell-robot{display:inline-block;transition:transform .25s ease-out;line-height:1}.cell-goal{animation:pulse-goal 1.5s ease-in-out infinite}@keyframes pulse-goal{0%,to{transform:scale(1)}50%{transform:scale(1.15)}}.robot-controls{display:flex;flex-direction:column;gap:1rem;width:100%}.command-palette{display:flex;justify-content:center;gap:.5rem;flex-wrap:wrap}.cmd-btn{display:inline-flex;align-items:center;gap:.4rem;padding:.5rem .9rem;border-radius:var(--radius);border:2px solid #cbd5e1;background:var(--card);color:var(--ink);font-weight:700;font-size:1rem;cursor:pointer;box-shadow:var(--shadow);transition:all .15s ease}.cmd-btn:hover:not(:disabled){border-color:var(--primary);transform:translateY(-2px);background:#edf2ff}.cmd-btn:active:not(:disabled){transform:translateY(0)}.cmd-btn:disabled{opacity:.5;cursor:not-allowed}.program-display{display:flex;flex-direction:column;gap:.8rem;background:var(--card);padding:1rem;border-radius:var(--radius);box-shadow:var(--shadow)}.program-steps{display:flex;gap:.5rem;overflow-x:auto;min-height:3.5rem;padding:.4rem;background:#f8fafc;border-radius:8px;align-items:center;border:1px dashed #cbd5e1}.program-empty{color:var(--muted);font-size:.95rem;font-style:italic;width:100%;text-align:center}.program-card{display:inline-flex;flex-direction:column;align-items:center;gap:.2rem;padding:.3rem .6rem;background:#fff;border:2px solid #94a3b8;border-radius:8px;cursor:pointer;transition:all .2s ease;min-width:2.8rem}.program-card:hover{border-color:#ef4444;background:#fef2f2}.program-card.active{border-color:var(--primary);background:#dbeafe;transform:scale(1.12);box-shadow:0 0 10px #3b82f680}.step-num{font-size:.7rem;color:var(--muted);font-weight:800}.step-icon{font-size:1.3rem;line-height:1}.program-actions{display:flex;justify-content:space-between;align-items:center;gap:.5rem;flex-wrap:wrap}.run-btn{margin-left:auto;font-weight:800;font-size:1.1rem;padding:.6rem 1.4rem}.scale-stage{display:flex;flex-direction:column;align-items:center;gap:1.5rem;width:100%;max-width:560px;margin:0 auto}.scale-container{position:relative;width:100%;max-width:440px;height:220px;display:flex;flex-direction:column;align-items:center;justify-content:flex-start;padding-top:30px}.scale-beam{position:relative;width:88%;height:8px;background:#475569;border-radius:4px;transform-origin:center center;transition:transform .45s cubic-bezier(.34,1.4,.64,1);z-index:2}.scale-beam.balanced{background:#16a34a;box-shadow:0 0 12px #16a34a66}.scale-pivot-point{position:absolute;top:50%;left:50%;width:18px;height:18px;background:#f59e0b;border:3px solid #b45309;border-radius:50%;transform:translate(-50%,-50%);z-index:5}.scale-pan-assembly{position:absolute;top:4px;display:flex;flex-direction:column;align-items:center;transform-origin:top center;transition:transform .45s cubic-bezier(.34,1.4,.64,1)}.scale-pan-assembly.left{left:0;transform:translate(-50%)}.scale-pan-assembly.right{right:0;transform:translate(50%)}.pan-chain{width:2px;height:48px;background:#94a3b8;background-image:repeating-linear-gradient(to bottom,#94a3b8 0,#94a3b8 4px,transparent 4px,transparent 6px)}.pan-dish{min-width:120px;padding:.6rem .8rem;background:#e2e8f0;border:2px solid #cbd5e1;border-radius:12px;box-shadow:0 4px 6px #00000014;display:flex;justify-content:center;align-items:center}.pan-weight{font-size:clamp(1.2rem,4vw,1.6rem);font-weight:800;color:var(--ink);display:inline-flex;align-items:center;gap:.2rem}.mystery-box{display:inline-flex;align-items:center;justify-content:center;min-width:2.2rem;height:2.2rem;padding:0 .3rem;margin:0 .2rem;border:2px dashed #3b82f6;border-radius:6px;background:#eff6ff;color:#1d4ed8;font-weight:800;transition:all .2s ease}.mystery-box.filled{border-style:solid;border-color:#16a34a;background:#dcfce7;color:#15803d;transform:scale(1.08)}.scale-stand{position:absolute;top:30px;left:50%;transform:translate(-50%);display:flex;flex-direction:column;align-items:center;z-index:1}.stand-pole{width:12px;height:120px;background:#64748b;border-radius:2px}.stand-base{width:90px;height:14px;background:#475569;border-radius:8px 8px 0 0;box-shadow:0 2px 4px #00000026}.balance-status{min-height:2rem;display:flex;align-items:center;justify-content:center}.status-badge{font-weight:800;font-size:1.1rem;padding:.3rem .8rem;border-radius:9999px;transition:all .3s ease}.status-badge.balanced{background:#dcfce7;color:#15803d;box-shadow:0 2px 6px #16a34a33;animation:pop .3s ease-out}.status-badge.unbalanced{font-size:1.6rem}.scale-options{display:flex;justify-content:center;gap:.8rem;flex-wrap:wrap;width:100%}.scale-option-btn{display:inline-flex;align-items:center;gap:.5rem;padding:.8rem 1.4rem;background:var(--card);border:3px solid #cbd5e1;border-radius:var(--radius);font-size:1.5rem;font-weight:800;color:var(--ink);cursor:pointer;box-shadow:var(--shadow);transition:all .15s ease}.scale-option-btn:hover:not(:disabled){border-color:var(--primary);transform:translateY(-4px);background:#edf2ff}.scale-option-btn.selected{border-color:var(--primary);background:#dbeafe}.weight-icon{font-size:1.4rem}.treasure-target-card{display:inline-flex;align-items:center;justify-content:center;padding:.8rem 1.6rem;background:#fef3c7;border:3px solid #f59e0b;border-radius:var(--radius);box-shadow:var(--shadow);margin-bottom:.5rem}.target-label{font-size:clamp(1.2rem,4vw,1.6rem);font-weight:800;color:#92400e}.treasure-hint-text{font-size:1.1rem;font-weight:700;color:var(--primary);min-height:1.5rem;margin:0}.coordinate-plane{width:100%;max-width:440px;background:#f8fafc;padding:12px;border:3px solid #cbd5e1;border-radius:var(--radius);box-shadow:var(--shadow);margin:0 auto}.plane-grid{display:grid;gap:3px;width:100%}.plane-cell{aspect-ratio:1;background:#fff;border:1px solid #e2e8f0;border-radius:6px;display:flex;align-items:center;justify-content:center;font-size:clamp(.75rem,2.5vw,1rem);cursor:pointer;position:relative;transition:all .15s ease;padding:0}.plane-cell:hover:not(:disabled){background:#dbeafe;border-color:#3b82f6;transform:scale(1.06);z-index:2}.plane-cell.x-axis{border-bottom:3px solid #2563eb}.plane-cell.y-axis{border-right:3px solid #2563eb}.plane-cell.origin{background:#eff6ff;font-weight:800}.plane-cell.found{background:#dcfce7!important;border-color:#16a34a!important;animation:pop .3s ease-out}.plane-cell.wrong{background:#fee2e2!important;border-color:#ef4444!important;animation:balloon-shake .35s ease-in-out}.chest-emoji{font-size:clamp(1.2rem,4vw,1.8rem);line-height:1}.wrong-mark{font-size:1.1rem;line-height:1}.cell-coords{color:#64748b;font-weight:700;font-size:clamp(.65rem,2vw,.85rem)}.clock-stage{display:flex;align-items:center;justify-content:center;margin:1rem 0 1.5rem}.clock-wrapper{width:220px;height:220px;filter:drop-shadow(0 8px 16px rgba(79,70,229,.15));transition:transform .25s ease}.analog-clock{width:100%;height:100%;display:block}.clock-face{fill:#fff;stroke:#4f46e5;stroke-width:8}.clock-inner-border{fill:none;stroke:#e0e7ff;stroke-width:2}.clock-num{font-family:inherit;font-weight:800;font-size:18px;fill:#1e1b4b}.clock-tick{stroke:#cbd5e1;stroke-width:2;stroke-linecap:round}.clock-tick.major{stroke:#4f46e5;stroke-width:3.5}.clock-hand{stroke-linecap:round;transition:transform .3s cubic-bezier(.34,1.56,.64,1)}.clock-hand.hour-hand{stroke:#ef4444;stroke-width:6}.clock-hand.minute-hand{stroke:#3b82f6;stroke-width:4.5}.clock-center-pin{fill:#1e1b4b;stroke:#fff;stroke-width:2}.clock-options{display:grid;grid-template-columns:repeat(2,1fr);gap:.85rem;width:100%;max-width:360px;margin:0 auto}.clock-option-btn{display:flex;align-items:center;justify-content:center;gap:.6rem;padding:.85rem 1.2rem;background:var(--card);border:2px solid #cbd5e1;border-radius:var(--radius);font-size:1.35rem;font-weight:800;color:var(--ink);cursor:pointer;box-shadow:var(--shadow);transition:all .15s ease}.clock-option-btn:hover:not(:disabled){border-color:var(--primary);background:#edf2ff;transform:translateY(-3px)}.clock-option-btn:active:not(:disabled){transform:translateY(0)}.digital-icon{font-size:1.25rem}.digital-time{letter-spacing:.05em;font-family:monospace;font-weight:800}.symmetry-toolbar{display:flex;justify-content:space-between;align-items:center;gap:.75rem;width:100%;max-width:420px;margin:0 auto .75rem;flex-wrap:wrap}.symmetry-palette{display:flex;align-items:center;gap:.5rem}.symmetry-brush-btn{width:40px;height:40px;border-radius:50%;border:3px solid transparent;background:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .15s ease;box-shadow:0 2px 4px #0000001a;padding:0}.symmetry-brush-btn.active{border-color:var(--primary);transform:scale(1.15);box-shadow:0 0 0 3px #6366f159}.brush-dot{width:24px;height:24px;border-radius:50%;background-color:var(--brush-color);box-shadow:inset 0 1px 2px #0003}.symmetry-brush-btn.eraser{font-size:1.25rem;background:#f1f5f9}.symmetry-clear-btn{padding:.45rem .9rem;background:#fff;border:2px solid #cbd5e1;border-radius:8px;font-size:.95rem;font-weight:700;color:#475569;cursor:pointer;transition:all .15s ease}.symmetry-clear-btn:hover:not(:disabled){background:#fee2e2;border-color:#ef4444;color:#b91c1c}.symmetry-stage{display:flex;align-items:center;justify-content:center;background:#f8fafc;padding:14px;border-radius:var(--radius);border:3px solid #cbd5e1;box-shadow:var(--shadow);width:100%;max-width:440px;margin:0 auto}.symmetry-half{display:grid;gap:4px;flex:1}.symmetry-cell{aspect-ratio:1;border-radius:6px;background:#ffffff;border:2px dashed #cbd5e1;transition:all .15s 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