:root{--cell: 5mm;--grid-font: 11pt;--inline-font: 13pt;--ink: #1d2433;--muted: #5d667a;--grid-line: #b8c7d6;--rule: #1f2933;--paper: #ffffff;--font: "Andika", "Segoe UI", system-ui, sans-serif;--cream: #fff8ec;--text: #1d2433;--text-soft: #3b4458;--orange: #ff8a3d;--orange-ink: #c94c08;--orange-soft: #ffe7d4;--blue: #2f6fe0;--blue-ink: #1f4fb8;--blue-soft: #e1ebff;--yellow: #ffd34d;--desk: #f1ece2;--line: #eadfcd;--error: #b3261e;--ui-font: "Nunito", "Segoe UI", system-ui, sans-serif;--display: "Baloo 2", "Nunito", system-ui, sans-serif;--cat: var(--blue);--cat-ink: var(--blue-ink);--cat-soft: var(--blue-soft);--cat-text-on: #ffffff}body[data-category=preschool]{--cat: var(--orange);--cat-ink: var(--orange-ink);--cat-soft: var(--orange-soft);--cat-text-on: #1d2433}*{box-sizing:border-box}[hidden]{display:none!important}body{margin:0;min-height:100vh;display:flex;flex-direction:column;background:var(--cream);color:var(--text);font-family:var(--ui-font)}a:focus-visible,button:focus-visible,input:focus-visible,.topic-card:has(input:focus-visible){outline:3px solid var(--yellow);outline-offset:3px}.button{display:inline-block;font:inherit;font-weight:800;font-size:17px;padding:14px 24px;border-radius:16px;border:0;cursor:pointer;text-decoration:none;transition:transform .12s,box-shadow .12s}.button:active{transform:translateY(3px)}.button-primary{background:#ff6b1a;color:#fff;box-shadow:0 5px #c94c08}.button-primary:active{box-shadow:0 2px #c94c08}.app{flex:1;display:grid;grid-template-columns:340px minmax(0,1fr)}.controls{position:sticky;top:0;height:100vh;overflow-y:auto;padding:24px;background:var(--cream);border-right:1px solid var(--line)}.controls h1{font-family:var(--display);font-weight:800;font-size:30px;line-height:1;margin:0}.controls .subtitle{margin:6px 0 20px;color:var(--text-soft);font-weight:700}.controls form{display:grid;gap:20px}.controls fieldset{border:0;padding:0;margin:0;display:grid;gap:8px}.controls legend{font-weight:800;margin-bottom:8px}.controls label{display:flex;gap:8px;align-items:center}.controls .levels{display:flex;gap:8px;flex-wrap:wrap}.controls .levels label{position:relative;padding:8px 16px;border-radius:999px;background:#fff;border:2px solid var(--line);font-weight:800;cursor:pointer}.controls .levels input{position:absolute;opacity:0;pointer-events:none}.controls .levels label:has(input:checked){background:var(--cat);border-color:var(--cat);color:var(--cat-text-on)}.controls .levels label:has(input:focus-visible){outline:3px solid var(--yellow);outline-offset:2px}.controls .level-help{margin:4px 0 0;padding:0;list-style:none;display:grid;gap:4px;font-size:13px;color:var(--text-soft)}.controls .level-help .current{color:var(--text);font-weight:800}.topic-options{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}.controls .topic-card{position:relative;flex-direction:column;align-items:flex-start;gap:4px;padding:10px;border-radius:14px;background:#fff;border:2px solid var(--line);cursor:pointer;transition:transform .15s,border-color .15s}.topic-card:hover{transform:translateY(-2px);border-color:var(--cat)}.topic-card input{position:absolute;opacity:0;pointer-events:none}.topic-card:has(input:checked){border-color:var(--cat);background:var(--cat-soft)}.topic-mark{font-family:var(--font);font-weight:700;font-size:17px;line-height:1.2;color:var(--cat-ink)}.topic-name{font-size:13px;font-weight:800;line-height:1.2}.controls .field{display:grid;gap:6px;font-weight:700}.controls .more-settings{display:grid;gap:8px}.controls .more-settings summary{cursor:pointer;font-weight:800;color:var(--text-soft)}.controls .more-settings[open] summary{margin-bottom:4px}.controls .hint{margin:0;font-size:13px;color:var(--text-soft)}.controls input[type=number],.controls input[type=text]{width:100%;padding:10px 12px;font:inherit;border:2px solid var(--line);border-radius:12px;background:#fff}.controls .buttons{display:flex;gap:10px}.controls button{flex:1;font:inherit;font-weight:800;font-size:16px;padding:12px 14px;border:0;border-radius:14px;cursor:pointer;background:var(--cat);color:var(--cat-text-on);box-shadow:0 4px 0 var(--cat-ink)}.controls button:active{transform:translateY(2px);box-shadow:0 2px 0 var(--cat-ink)}.controls button.secondary{background:#fff;color:var(--text);box-shadow:0 4px 0 var(--line);border:2px solid var(--line)}.controls .error{color:var(--error);margin:0;font-weight:700}.preview{padding:32px;display:grid;justify-content:center;align-content:start;gap:24px;overflow-x:auto;background:var(--desk)}.generation-error{color:var(--error);font-weight:700}.page{width:210mm;min-height:297mm;padding:12mm;background:var(--paper);color:var(--ink);font-family:var(--font);box-shadow:0 2px 12px #00000026}.page[data-grade="1"]{--cell: 7mm;--grid-font: 15pt;--inline-font: 16pt}.page[data-grade="2"]{--cell: 6mm;--grid-font: 13pt;--inline-font: 14pt}.sheet-meta{display:flex;gap:8mm;font-size:11pt;color:var(--muted)}.sheet-meta .line{display:inline-block;width:45mm;border-bottom:1px solid var(--muted)}.sheet-meta .line.short{width:25mm}.sheet-meta .code{margin-left:auto}.sheet-title{font-size:16pt;margin:3mm 0 2mm}.section-title{font-size:12pt;margin:3mm 0 .5mm}.instruction{margin:0 0 2.5mm;font-size:11pt}.tasks{display:grid;gap:4mm 6mm}.tasks-column{grid-template-columns:repeat(3,max-content);justify-content:space-between;column-gap:2mm}.tasks-inline{grid-template-columns:repeat(2,minmax(0,1fr));gap:3mm 8mm;font-size:var(--inline-font)}.task{display:flex;gap:2mm;align-items:flex-start}.task-column,.task-division{flex-direction:column;gap:1mm}.task-number{font-weight:700;min-width:7mm}.grid{border-collapse:collapse;table-layout:fixed;font-size:var(--grid-font)}.grid td{width:var(--cell);min-width:var(--cell);height:var(--cell);padding:0;line-height:1;text-align:center;vertical-align:middle;border:1px solid var(--grid-line)}.grid tr.rule td{border-bottom:2px solid var(--rule)}.grid td.sign{font-weight:700}.grid td.bar{border-left:2px solid var(--rule)}.grid td.divisor{border-bottom:2px solid var(--rule)}.inline{white-space:pre-wrap;line-height:1.9}.blank{display:inline-block;width:16mm;height:1.1em;vertical-align:baseline;border-bottom:1.5px solid var(--ink)}.box{display:inline-block;width:8mm;height:8mm;margin:0 2mm;vertical-align:middle;border:1.5px solid var(--ink);border-radius:1.5mm}.frac{display:inline-flex;align-items:center;gap:1mm;vertical-align:middle;line-height:1.15}.frac-body{display:inline-flex;flex-direction:column;align-items:center}.frac-num{min-width:6mm;padding:0 1mm;text-align:center;border-bottom:1.5px solid var(--ink)}.frac-num.frac-blank{height:1.15em;min-width:10mm}.frac-den{padding:0 1mm}.answers-title{font-size:16pt;margin:0 0 6mm}.answer-block{break-inside:avoid;margin-bottom:6mm}.answer-block h3{font-size:12pt;margin:0 0 2mm}.answer-block ol{columns:3;margin:0;padding-left:8mm;font-size:11pt}@media (max-width: 900px){.app{grid-template-columns:minmax(0,1fr)}.controls{position:static;height:auto;border-right:0;border-bottom:1px solid var(--line)}}.page[data-grade="0"]{--inline-font: 20pt}.tasks-rows,.tasks-single{grid-template-columns:minmax(0,1fr)}.page[data-grade="0"] .tasks-rows{gap:3mm}.page[data-grade="0"] .tasks-inline{grid-template-columns:minmax(0,1fr);gap:5mm}.task-trace,.task-lines,.task-search,.task-read,.task-maze,.task-shapes{align-items:center}.task-trace>svg,.task-lines>svg,.task-maze>svg,.task-shapes>.shapes{flex:1;min-width:0}.trace,.lines{display:block;width:100%;height:auto}.trace .guide{stroke:#9fb6c9;stroke-width:.8}.trace .mid{stroke:#d98a7e;stroke-dasharray:4 3}.trace .base{stroke-width:1.3}.trace text{font-family:var(--font)}.trace .solid{fill:var(--ink)}.trace .dashed{fill:none;stroke:#7d8fa0;stroke-width:1.1;stroke-dasharray:2.4 2.2;stroke-linecap:round}.lines .dashed-line{fill:none;stroke:#7d8fa0;stroke-width:2;stroke-dasharray:5 4;stroke-linecap:round}.lines .start{fill:var(--ink)}.lines .end{fill:none;stroke:var(--ink);stroke-width:2}.maze{display:block;width:auto;max-width:100%;height:112mm;margin:0 auto}.maze path{fill:none;stroke:var(--ink);stroke-width:2.5;stroke-linecap:round}.maze-start polygon{fill:var(--ink)}.maze-end{fill:none;stroke:var(--ink);stroke-width:2}.dots{height:auto;vertical-align:middle}.dots *{fill:var(--ink)}.search{display:flex;align-items:center;gap:6mm;font-size:22pt}.search-target{border:2px solid var(--ink);border-radius:2mm;padding:0 2.5mm}.search-row{display:flex;gap:3.5mm}.read{margin:0;font-size:22pt;letter-spacing:.5px}.shapes{display:grid;gap:6mm}.shapes-picture{width:100%;height:auto}.shapes-picture *{fill:none;stroke:var(--ink);stroke-width:2}.shapes-table{display:flex;gap:12mm;font-size:22pt}.shapes-cell{display:inline-flex;align-items:baseline;gap:2mm}.site-header{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;padding:18px 40px;background:var(--cream);border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:12px;color:var(--text);text-decoration:none}.brand-mark{width:44px;height:44px;border-radius:13px;background:var(--orange);color:#fff;display:flex;align-items:center;justify-content:center;font-family:var(--display);font-weight:800;font-size:28px;transform:rotate(-8deg)}.brand-name{font-family:var(--display);font-weight:800;font-size:28px;letter-spacing:-.5px}.site-nav{display:flex;gap:10px;flex-wrap:wrap}.site-nav a{padding:9px 18px;border-radius:999px;background:#fff;color:var(--text);font-weight:800;text-decoration:none;border:2px solid var(--line)}.site-nav a:hover{border-color:var(--text)}.site-nav a[href="/priesmokyklinukams/"][aria-current=page]{background:var(--orange);border-color:var(--orange)}.site-nav a[href="/mokyklinukams/"][aria-current=page]{background:var(--blue);border-color:var(--blue);color:#fff}.site-actions{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.donate-pill{padding:9px 18px;border-radius:999px;background:var(--yellow);border:2px solid var(--yellow);color:var(--text);font-weight:800;text-decoration:none}.donate-pill:hover{border-color:var(--text)}.button-donate{background:var(--text);color:#fff;box-shadow:0 5px #000}.button-donate:active{box-shadow:0 2px #000}.footer-donate{color:var(--yellow);font-weight:800}.site-footer{padding:32px 40px;background:var(--text);color:#e7ebf3;font-size:15px}.site-footer p{margin:4px 0;max-width:72ch}.site-footer b{font-family:var(--display);font-size:20px}.home{flex:1;width:min(1160px,100%);margin:0 auto;padding:0 24px 72px;display:grid;gap:64px}.hero{position:relative;padding:64px 0 8px}.hero-text{position:relative;display:grid;gap:20px;justify-items:start;max-width:680px}.hero h1{font-family:var(--display);font-weight:800;font-size:clamp(40px,6vw,72px);line-height:.98;letter-spacing:-1px;margin:0;text-wrap:balance}.hero-accent{color:#e8590c}.hero p{margin:0;font-size:20px;line-height:1.5;color:var(--text-soft);max-width:34em}.blob{position:absolute;border-radius:50%;pointer-events:none}.blob-yellow{width:300px;height:300px;background:var(--yellow);right:-60px;top:20px}.blob-orange{width:140px;height:140px;background:var(--orange);right:250px;top:230px}.blob-blue{width:90px;height:90px;border-radius:24px;background:var(--blue);right:40px;top:300px;transform:rotate(18deg)}.try{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:40px;align-items:start;background:#fff;border-radius:28px;padding:36px}.try h2,.how h2,.why h2{font-family:var(--display);font-weight:800;font-size:36px;line-height:1.1;margin:0}.try-controls{display:grid;gap:18px;align-content:start}.try-topics{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.try-topic{display:grid;gap:2px;text-align:left;font:inherit;font-weight:800;font-size:18px;padding:14px 16px;border-radius:16px;border:2px solid var(--line);background:var(--cream);color:var(--text);cursor:pointer;transition:transform .15s,border-color .15s}.try-topic:hover{transform:translateY(-2px)}.try-tag{font-size:12px;letter-spacing:.5px;text-transform:uppercase}.try-preschool .try-tag{color:var(--orange-ink)}.try-school .try-tag{color:var(--blue-ink)}.try-preschool[aria-pressed=true]{border-color:var(--orange);background:var(--orange-soft)}.try-school[aria-pressed=true]{border-color:var(--blue);background:var(--blue-soft)}.try-note{margin:0;color:var(--text-soft)}.try-frame{position:relative;overflow:hidden;min-width:0;height:calc(297mm * var(--scale, .52))}.try-sheet{position:absolute;top:0;left:50%;width:210mm;transform:translate(-50%) scale(var(--scale, .52));transform-origin:top center;animation:sheet-in .35s ease both}@keyframes sheet-in{0%{opacity:0;transform:translate(-50%) translateY(20px) rotate(-1.5deg) scale(var(--scale, .52))}to{opacity:1;transform:translate(-50%) scale(var(--scale, .52))}}.categories{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}.category-card{display:grid;gap:12px;align-content:start;padding:34px;border-radius:28px;text-decoration:none;transition:transform .18s,box-shadow .18s}.category-card:hover{transform:translateY(-4px);box-shadow:0 16px 30px #1d243329}.category-preschool{background:var(--orange);color:#1d2433}.category-school{background:var(--blue);color:#fff}.category-card h2{font-family:var(--display);font-weight:800;font-size:clamp(24px,7vw,44px);line-height:1;margin:0}.category-card p{margin:0;font-size:18px;line-height:1.5}.category-age{justify-self:start;background:#fff;padding:6px 14px;border-radius:999px;font-weight:800;font-size:14px}.category-preschool .category-age{color:var(--orange-ink)}.category-school .category-age{color:var(--blue-ink)}.category-go{font-weight:800;font-size:19px}.how{display:grid;gap:20px}.how ol{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.how li{display:flex;align-items:center;gap:16px;background:#fff;padding:22px;border-radius:22px;font-size:18px}.step{flex:none;width:50px;height:50px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-family:var(--display);font-weight:800;font-size:26px}.step-1{background:var(--yellow)}.step-2{background:var(--orange)}.step-3{background:var(--blue);color:#fff}.why{display:grid;gap:10px;background:var(--yellow);padding:32px 36px;border-radius:28px}.why p{margin:0;font-size:18px;line-height:1.6;max-width:60ch}.not-found-links{display:flex;flex-wrap:wrap;gap:12px}@media (max-width: 800px){.site-header{padding:14px 16px}.try,.categories,.how ol{grid-template-columns:minmax(0,1fr)}.try{padding:20px}.category-card{padding:24px}.blob{display:none}}@media (prefers-reduced-motion: reduce){.button,.topic-card,.try-topic,.category-card{transition:none}.topic-card:hover,.try-topic:hover,.category-card:hover{transform:none}.try-sheet{animation:none}}
