:root{--text:#6b6375;--text-h:#08060d;--bg:#fff;--border:#e5e4e7;--accent:#e8590c;--accent-bg:#e8590c1a;--accent-border:#e8590c80;--sans:system-ui, "Segoe UI", Roboto, sans-serif;font:16px/145% var(--sans);--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light dark;color:var(--text);background:var(--bg);font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}@media (prefers-color-scheme:dark){:root{--lightningcss-light: ;--lightningcss-dark:initial;--text:#9ca3af;--text-h:#f3f4f6;--bg:#16171d;--border:#2e303a;--accent:#ff8a4d;--accent-bg:#ff8a4d26;--accent-border:#ff8a4d80}}*{box-sizing:border-box}body{min-height:100svh;margin:0;overflow-x:hidden}h1,h2{font-family:var(--sans);color:var(--text-h);font-weight:600}.kid-button{min-width:var(--touch-target);min-height:var(--touch-target);border-radius:var(--radius-kid);background:var(--accent-bg);color:var(--text-h);font:inherit;cursor:pointer;touch-action:manipulation;transition:transform var(--duration-press) ease, background var(--duration-press) ease;border:none;justify-content:center;align-items:center;display:inline-flex}.kid-button:active{background:var(--accent-border);transform:scale(.92)}.module-tile{align-items:center;gap:var(--space-1);color:var(--text-h);font:inherit;cursor:pointer;touch-action:manipulation;transition:transform var(--duration-press) ease;background:0 0;border:none;flex-direction:column;padding:0;display:flex}.module-tile:active{transform:scale(.95)}.module-tile__icon{width:var(--tile-size);height:var(--tile-size);border-radius:var(--radius-kid);object-fit:cover;display:block}.module-tile__title{text-align:center;font-size:16px}.home-button{top:max(var(--space-2), env(safe-area-inset-top));left:max(var(--space-2), env(safe-area-inset-left));width:var(--touch-target);height:var(--touch-target);background:var(--bg);color:var(--text-h);cursor:pointer;touch-action:manipulation;z-index:10;transition:transform var(--duration-press) ease;border:none;border-radius:50%;justify-content:center;align-items:center;display:flex;position:fixed;box-shadow:0 1px 4px #0003}.home-button:active{transform:scale(.92)}.feedback-counted{box-shadow:0 0 0 4px var(--color-success);transform:scale(1.06)}@keyframes feedback-celebrate-item{0%{transform:scale(1)}40%{transform:scale(1.08)}to{transform:scale(1)}}.feedback-celebrate-item{animation:feedback-celebrate-item var(--duration-celebrate) ease-in-out}@keyframes feedback-celebrate-set{0%{opacity:0;transform:scale(.9)}50%{opacity:1;transform:scale(1.12)}to{opacity:1;transform:scale(1)}}.feedback-celebrate-set{animation:feedback-celebrate-set calc(var(--duration-celebrate) * 1.5) ease-out}.math-module{justify-content:center;align-items:center;gap:var(--space-3);min-height:100dvh;padding:var(--space-3);box-sizing:border-box;flex-direction:column;display:flex}.math-module__status{min-height:100dvh;color:var(--text-h);justify-content:center;align-items:center;display:flex}.math-module__numeral{color:var(--text-h);font-size:clamp(48px,12vw,96px);font-weight:700;line-height:1}.math-module__grid{grid-template-columns:repeat(auto-fit, minmax(var(--touch-target), 1fr));gap:var(--space-2);width:100%;max-width:480px;display:grid}.math-module__object{min-width:var(--touch-target);min-height:var(--touch-target);border-radius:var(--radius-kid);background:var(--accent-bg);padding:var(--space-1);cursor:pointer;touch-action:manipulation;transition:transform var(--duration-press) ease;border:none;justify-content:center;align-items:center;display:flex}.math-module__object:active{transform:scale(.95)}.math-module__object img{pointer-events:none;width:100%;max-width:96px;height:auto;display:block}.math-module__scene{min-width:var(--touch-target);min-height:var(--touch-target);border-radius:var(--radius-kid);cursor:pointer;touch-action:manipulation;border:none;width:100%;max-width:480px;padding:0;overflow:hidden}.math-module__scene img{width:100%;height:auto;display:block}.math-module__set-celebration{justify-content:center;align-items:center;gap:var(--space-3);flex-direction:column;min-height:100dvh;display:flex}.parent-screen{gap:var(--space-2);padding:20px;padding-bottom:max(20px, env(safe-area-inset-bottom));box-sizing:border-box;flex-direction:column;max-width:640px;margin:0 auto;display:flex}.parent-screen h1{margin:8px 0 0;font-size:22px}.card{border:1px solid var(--border);box-sizing:border-box;border-radius:12px;flex-direction:column;gap:10px;padding:16px;display:flex}.card h2{margin:0;font-size:18px}.big-button{border:2px solid var(--accent-border);background:var(--accent-bg);min-height:56px;color:var(--text-h);cursor:pointer;touch-action:manipulation;border-radius:10px;font-size:18px}.big-button:active{border-color:var(--accent)}.big-button:disabled{opacity:.6;cursor:default}.status-line{word-break:break-word;margin:0}.error-line{color:#c0392b;word-break:break-word;margin:0}.summary-renderer{flex-direction:column;gap:2px;display:flex}.summary-row{flex-wrap:wrap;align-items:baseline;gap:6px;display:flex}.summary-row__label{color:var(--text-h);font-weight:600}.summary-row__value{color:var(--text);word-break:break-word}.summary-row__nested{flex-direction:column;gap:2px;width:100%;display:flex}.grown-up-gate{min-height:100svh;padding:var(--space-3);box-sizing:border-box;justify-content:center;align-items:center;display:flex}.grown-up-gate__target{border:2px solid var(--border);background:var(--bg);min-width:220px;min-height:120px;color:var(--text-h);cursor:pointer;touch-action:manipulation;-webkit-user-select:none;user-select:none;-webkit-touch-callout:none;border-radius:16px;font-size:16px;position:relative;overflow:hidden}.grown-up-gate__target:before{content:"";transform-origin:0;background:var(--accent-bg);transition:transform linear;position:absolute;inset:0;transform:scaleX(0)}.grown-up-gate__target--holding:before{transition:transform 3s linear;transform:scaleX(1)}.parent-footer{text-align:center;color:var(--text);padding:8px 0;font-size:12px}:root{--touch-target:72px;--tile-size:min(64vw, 320px);--radius-kid:24px;--space-1:8px;--space-2:16px;--space-3:24px;--space-4:32px;--color-success:#2f9e44;--color-error:#c0392b;--duration-press:.12s;--duration-celebrate:1.2s}@media (prefers-color-scheme:dark){:root{--color-success:#4fce5d;--color-error:#ff6b5b}}.kid-home{justify-content:center;align-items:center;gap:var(--space-4);min-height:100svh;padding:var(--space-3);padding-bottom:max(var(--space-3), env(safe-area-inset-bottom));box-sizing:border-box;flex-direction:column;display:flex}.kid-home__tiles{justify-content:center;align-items:flex-start;gap:var(--space-3);flex-wrap:wrap;display:flex}.kid-home__grown-ups{color:var(--text);cursor:pointer;touch-action:manipulation;padding:var(--space-1);background:0 0;border:none;font-size:13px}