@font-face{font-family:Nunito;src:url('/assets/nunito.ttf') format('truetype');font-style:normal;font-weight:200 1000;font-display:swap}
:root{--cream:#fffaf1;--paper:#fffefa;--ink:#183e5a;--muted:#62727d;--blue:#216595;--sky:#e6f2fa;--orange:#df7137;--button-orange:#b25023;--peach:#fff0dc;--mint:#e8f2e7;--gold:#ffdf82;--line:#d8e1e1;--radius:26px;--shadow:0 8px 0 #183e5a0b}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:28px}body{margin:0;background:var(--cream);color:var(--ink);font-family:Nunito,sans-serif;font-weight:550;line-height:1.65}img{max-width:100%;height:auto;display:block}a{color:var(--blue);text-decoration-thickness:1px;text-underline-offset:4px}a:hover{text-decoration-thickness:2px}button,input,select,textarea{font:inherit}button,a,input,textarea,select,summary{touch-action:manipulation}:focus-visible{outline:3px solid var(--orange);outline-offset:5px}button{cursor:pointer}h1,h2,h3,p{margin:0}h1,h2,h3{font-weight:950;letter-spacing:-.045em;line-height:1.12}p+p{margin-top:1em}h1{font-size:clamp(2.8rem,5.9vw,5.2rem)}h2{font-size:clamp(1.9rem,3.3vw,2.9rem)}h3{font-size:1.38rem;letter-spacing:-.03em}ul,ol{padding-left:1.4em}li+li{margin-top:.6em}.wrap{width:min(1240px,calc(100% - 80px));margin-inline:auto}.skip-link{position:absolute;top:-100px;left:15px;z-index:100;padding:12px;background:white;border:2px solid var(--blue)}.skip-link:focus{top:12px}
.site-header{display:flex;align-items:center;justify-content:space-between;gap:30px;padding-block:24px;border-bottom:1px solid #d9e0db}.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--ink);font-size:1.55rem;font-weight:1000;letter-spacing:-.06em;line-height:1.1;flex-shrink:0}.brand img{border-radius:13px}.brand small{display:block;font-size:.68rem;font-weight:800;letter-spacing:.04em;margin-top:5px;color:var(--muted)}.desktop-nav{display:flex;gap:23px;align-items:center}.desktop-nav a{font-size:.91rem;font-weight:850;color:var(--ink);text-decoration:none;white-space:nowrap}.desktop-nav a:hover,.desktop-nav a[aria-current]{color:var(--button-orange)}.mobile-nav{display:none}.eyebrow{font-size:.74rem;letter-spacing:.14em;font-weight:950;line-height:1.5;color:var(--blue);text-transform:uppercase}.sun-dot{display:inline-block;width:11px;height:11px;background:var(--orange);border-radius:50%;margin-right:9px}.button{display:inline-flex;align-items:center;justify-content:center;gap:22px;padding:15px 24px;border:2px solid var(--button-orange);background:var(--button-orange);color:white;border-radius:14px;font-weight:900;text-decoration:none;line-height:1.35;min-height:54px;box-shadow:0 4px 0 #a3442520}.button.secondary{background:transparent;color:var(--ink);border-color:#bfcfd3;box-shadow:none}.button:hover{transform:translateY(-2px);box-shadow:0 6px 0 #a3442520;text-decoration:none}.text-link{display:inline-flex;gap:12px;align-items:center;font-weight:900;white-space:normal}.actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.hero{display:grid;grid-template-columns:1.1fr 1fr;gap:60px;padding-block:70px 65px;align-items:center}.hero h1{margin:20px 0 25px;line-height:1.03}.hero h1 em{font-style:normal;color:var(--orange)}.hero-lede{font-size:1.22rem;max-width:530px;color:var(--muted);line-height:1.65}.hero-facts{display:flex;gap:27px;margin-top:35px;flex-wrap:wrap}.hero-facts span{display:flex;flex-direction:column;font-size:.77rem;color:var(--muted)}.hero-facts strong{font-size:1.4rem;color:var(--ink);font-weight:1000}.hero-poster{position:relative;border:9px solid var(--paper);border-radius:38px;background:#cde9f8 url('/assets/landscape.png') center/cover;box-shadow:10px 12px 0 #bdd7db5c;min-height:515px;isolation:isolate;transform:rotate(1.8deg);overflow:hidden}.hero-poster:before{content:'';position:absolute;inset:0;background:linear-gradient(110deg,#edf6fded 0%,#e8f1f479 55%,transparent 80%);z-index:-1}.poster-label{display:block;font-size:.63rem;font-weight:1000;letter-spacing:.18em;margin:30px 24px 0}.poster-copy{font-size:clamp(2.2rem,3.6vw,3.3rem);line-height:1.05;font-weight:1000;letter-spacing:-.06em;margin:28px 25px;max-width:260px}.hero-cat{position:absolute;width:53%;height:63%;object-fit:contain;right:-8px;bottom:65px;filter:drop-shadow(0 8px 1px #17374a0c)}.number-sticker{position:absolute;font-size:5.8rem;font-weight:1000;line-height:1;bottom:74px;transform:rotate(-12deg);-webkit-text-stroke:3px #fffef4;paint-order:stroke fill;filter:drop-shadow(0 5px 0 #56724e3b)}.number-sticker.one{left:31%;color:#8fae45}.number-sticker.two{right:5%;color:#f9b345;transform:rotate(12deg)}.star-sticker{position:absolute;right:32px;top:37px;font-size:4.1rem;line-height:1;color:#ffc755;transform:rotate(13deg);text-shadow:2px 3px white}.poster-note{position:absolute;bottom:0;left:0;right:0;background:#fffefa;display:flex;align-items:center;gap:12px;padding:20px;font-size:.82rem;font-weight:850}.poster-note>span{font-size:1.7rem;color:var(--orange)}
.section-heading{display:flex;align-items:end;justify-content:space-between;gap:28px;margin:65px 0 25px}.section-heading .eyebrow{margin-bottom:12px}.section-heading p:not(.eyebrow){max-width:650px;color:var(--muted);margin-top:15px;font-size:1.06rem}.card-grid{display:grid;gap:22px}.card-grid.three{grid-template-columns:repeat(3,1fr)}.card-grid.two{grid-template-columns:repeat(2,1fr)}.resource-card{display:block;padding:28px;border-radius:var(--radius);border:1px solid #cbdadf;position:relative;color:var(--ink);text-decoration:none;min-height:250px;transition:transform .18s,box-shadow .18s;box-shadow:var(--shadow)}.resource-card.blue{background:var(--sky)}.resource-card.peach{background:var(--peach)}.resource-card.mint{background:var(--mint)}.resource-card.gold{background:#fff3c8}.resource-card:hover{transform:translateY(-4px);text-decoration:none;box-shadow:0 12px 0 #183e5a0b}.card-marker{display:inline-block;font-size:.68rem;font-weight:950;letter-spacing:.09em;border:1px solid #7a969d66;border-radius:7px;padding:4px 8px;margin-bottom:28px;max-width:90%;overflow-wrap:anywhere}.resource-card h3{font-size:1.7rem;max-width:92%}.resource-card p{margin-top:12px;color:#4e6775;line-height:1.55;font-size:.98rem;padding-bottom:25px}.card-arrow{position:absolute;right:24px;bottom:20px;font-size:1.5rem}.games-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}.game-card{background:var(--paper);border:1px solid var(--line);border-radius:24px;overflow:hidden;box-shadow:var(--shadow);display:flex;flex-direction:column}.game-card-main{display:block;color:var(--ink);text-decoration:none;padding:17px 18px;flex:1}.game-card-main:hover{text-decoration:none}.game-card h3{font-size:1.25rem;margin-top:20px}.game-card p{font-size:.85rem;line-height:1.45;color:var(--muted);margin-top:8px}.game-art{height:150px;border-radius:15px;background:#eff5ed;display:grid;place-items:center}.game-card:nth-child(3n+2) .game-art{background:#eaf0fc}.game-card:nth-child(3n) .game-art{background:#fff0dc}.game-art img{width:112px;height:112px;object-fit:contain;transition:transform .2s}.game-card-main:hover img{transform:rotate(-5deg) scale(1.04)}.game-play{font-weight:900;font-size:.85rem;padding:12px 18px;border-top:1px solid var(--line);text-decoration:none;display:flex;justify-content:space-between}.game-play:hover{background:var(--sky)}
.teacher-banner{margin-top:75px;background:var(--blue);color:white;border-radius:34px;display:grid;grid-template-columns:1fr 1fr;padding:50px;gap:60px;align-items:center;overflow:hidden}.teacher-banner .eyebrow{color:#cce7f2}.teacher-banner h2{font-size:2.85rem;margin:16px 0 20px}.teacher-banner p{max-width:450px;color:#e1eff5}.teacher-banner .button{margin-top:25px}.tool-preview{min-height:300px;position:relative}.paper-lines{display:flex;flex-direction:column;gap:22px;background:#fffaf1;padding:30px;border-radius:8px;color:var(--ink);transform:rotate(-5deg);margin:15px 10px;box-shadow:10px 10px 0 #133f6a50;width:85%}.paper-lines>span{font-size:.65rem;letter-spacing:.13em;font-weight:950;margin-bottom:14px}.paper-lines strong{font-size:1.1rem;border-bottom:1px dashed #b7c9cf;padding-bottom:10px}.teacher-cat{position:absolute;right:-32px;bottom:-28px;width:140px;height:200px;object-fit:contain;transform:rotate(8deg)}.round-note{position:absolute;right:-10px;top:-20px;border-radius:50%;background:var(--gold);color:var(--ink);font-size:.83rem;line-height:1.3;font-weight:950;padding:22px;transform:rotate(10deg)}.app-strip{display:flex;gap:25px;align-items:center;padding:35px;background:#fff1db;border:1px solid #ecd3ad;border-radius:28px;margin:65px 0 75px}.app-strip img{border-radius:22px;width:88px;height:88px;flex-shrink:0}.app-strip>div{flex:1}.app-strip h2{font-size:1.6rem;margin:6px 0 8px}.app-strip p:not(.eyebrow){color:var(--muted);font-size:.95rem}
.breadcrumbs{margin-top:26px;font-size:.77rem;color:var(--muted)}.breadcrumbs ol{padding:0;display:flex;flex-wrap:wrap;gap:6px 12px;list-style:none}.breadcrumbs li+li{margin:0}.breadcrumbs li+li:before{content:'›';margin-right:12px;color:#8e9fa5}.page-intro{padding:45px 0 40px;max-width:970px}.page-intro .eyebrow{margin-bottom:18px}.page-intro h1{max-width:1000px;font-size:clamp(2.7rem,5.2vw,4.6rem)}.lede{font-size:1.2rem;line-height:1.7;color:var(--muted);margin-top:24px;max-width:780px}.page-intro.with-aside{max-width:none;display:grid;grid-template-columns:1fr 220px;align-items:center;gap:50px}.intro-game-art{display:grid;place-items:center;background:var(--sky);border-radius:35px;aspect-ratio:1;transform:rotate(4deg)}.intro-game-art img{object-fit:contain;width:160px;height:160px}.intro-app-icon{width:180px;border-radius:40px}.notice{padding:22px 28px;background:#fff1d9;border-left:5px solid var(--orange);border-radius:6px 20px 20px 6px;margin:10px 0 35px;max-width:1000px}.notice strong{font-size:1.1rem}.notice p{margin:8px 0 12px;color:#5a6870}.game-detail{display:grid;grid-template-columns:minmax(0,1.8fr) minmax(250px,1fr);gap:65px;margin-bottom:65px}.reading{font-size:1.07rem;line-height:1.85;max-width:760px}.reading h2{font-size:1.9rem;margin:35px 0 15px}.reading h3{margin:26px 0 12px}.reading .lede{margin-top:0}.reading p{color:#4c6473}.reading.wide{max-width:870px;margin-bottom:35px}.side-note{background:var(--mint);padding:30px;border-radius:25px;align-self:start}.side-note h2{font-size:1.8rem;margin:14px 0}.side-note p:not(.eyebrow){color:#486361}.side-note a{display:block;font-weight:900;margin-top:22px}.steps li{padding-left:8px}.steps li::marker{color:var(--orange);font-weight:1000}.table-links{display:grid;grid-template-columns:repeat(6,1fr);gap:14px;margin:20px 0 35px}.table-links a{background:white;border:1px solid var(--line);border-radius:20px;padding:20px 12px;text-align:center;text-decoration:none;color:var(--ink);box-shadow:var(--shadow)}.table-links strong{display:block;font-size:2.7rem;font-weight:1000;line-height:1.15;color:var(--blue)}.table-links strong>span{font-size:1.2rem;color:var(--orange);margin-left:4px}.table-links a>span{font-size:.72rem;font-weight:800;display:block;margin-top:10px}.table-links a:hover{background:var(--sky);transform:translateY(-3px)}.table-scroll{overflow:auto;max-width:100%;background:white;border:1px solid var(--line);border-radius:20px;padding:20px}.times-chart{border-collapse:collapse;width:100%;min-width:620px;text-align:center;font-variant-numeric:tabular-nums}.times-chart th,.times-chart td{padding:10px;border:1px solid #dce5e9}.times-chart th{background:var(--sky);font-weight:950}.times-chart tbody tr:nth-child(even) td{background:#f8fbfc}caption{text-align:left;font-size:.85rem;font-weight:850;padding-bottom:14px;color:var(--muted)}.caption{font-size:.85rem;color:var(--muted);margin:12px 0 20px}.table-layout{display:grid;grid-template-columns:340px 1fr;gap:65px;align-items:start}.fact-table{width:100%;border-collapse:collapse;background:white;border-radius:20px;overflow:hidden;border:1px solid var(--line)}.fact-table td,.fact-table th{padding:10px 22px;border-bottom:1px solid var(--line);text-align:left}.fact-table thead th{background:var(--blue);color:white}.fact-table tbody td{font-size:1.25rem;font-weight:950;color:var(--orange)}.worked-example{background:#edf4f7;padding:24px;border-radius:20px}.paper-banner{display:flex;justify-content:space-between;align-items:center;gap:30px;background:var(--sky);border-radius:28px;padding:35px;margin:40px 0}.paper-banner h2{font-size:2rem;margin:10px 0}.paper-banner p{max-width:600px;color:var(--muted)}.age-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}.age-card{padding:30px;border:1px solid var(--line);border-radius:24px;background:white}.age-card h2{font-size:1.8rem;margin:15px 0}.age-card p:not(.eyebrow){color:var(--muted)}.age-card a{margin-top:20px}.callout{padding:24px;background:var(--mint);border-radius:18px;margin:30px 0}
.article-layout{display:grid;grid-template-columns:245px minmax(0,760px);gap:65px}.article-toc{border-top:2px solid var(--blue);padding-top:18px;align-self:start;position:sticky;top:24px}.article-toc a{display:block;font-size:.87rem;margin:15px 0;text-decoration:none;line-height:1.5}.article-layout .reading section:first-child h2{margin-top:0}.worked-box{background:var(--peach);border:1px solid #ead5b7;border-radius:24px;padding:30px;margin-top:35px}.worked-box h2{margin:12px 0}.worked-box .button{margin-top:22px}.reading-note{font-size:.88rem;border-top:1px solid var(--line);padding-top:22px;margin-top:30px}.tool-after{max-width:800px;margin:35px 0 50px;color:var(--muted)}.tool-after h2{font-size:1.8rem;margin-bottom:15px;color:var(--ink)}.tool-after a{display:block;margin-top:20px}.teacher-tools{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.station-plan{padding:0;list-style:none;max-width:900px}.station-plan li{display:flex;gap:25px;padding:23px;border-bottom:1px dashed #b7cbd0}.station-plan li>span{background:var(--blue);color:white;padding:8px 13px;border-radius:9px;align-self:start;white-space:nowrap;font-weight:900;font-size:.8rem}.station-plan h3{margin-bottom:8px}.station-plan p{color:var(--muted)}.conversation-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}.conversation-grid blockquote{margin:0;padding:28px;border-radius:20px;background:var(--sky)}.conversation-grid blockquote p{font-size:1.55rem;font-weight:950;line-height:1.3}.conversation-grid blockquote span{display:block;margin-top:15px;font-size:.94rem;color:var(--muted)}.app-note{max-width:900px;background:var(--sky);padding:38px;margin-top:45px;border-radius:25px}.app-note h2{font-size:2rem;margin-bottom:20px}.app-note .button{margin-top:24px}.embed-layout{display:grid;grid-template-columns:1fr 420px;gap:60px}.embed-preview{display:flex;justify-content:center;padding:14px;background:var(--blue);border-radius:30px;align-self:start}.embed-preview iframe{border:0;border-radius:18px;width:100%;max-width:390px;height:700px;background:var(--sky)}.embed-code{display:block;width:100%;margin:10px 0 25px;font-family:monospace;font-size:.84rem;resize:vertical;padding:18px;border:1px solid #adc0c8;border-radius:14px;background:white;overflow-wrap:anywhere}
.tool-mount{padding:30px;background:white;border:1px solid #b9cdd6;border-radius:26px;box-shadow:var(--shadow);margin:20px 0 35px;max-width:100%;overflow:hidden}.tool-loading{color:var(--muted)}.tool-controls{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,160px),1fr));gap:16px;align-items:end;border:0;padding:0;margin:0 0 25px}.tool-mount label{display:block;font-size:.88rem;font-weight:850}.tool-mount input:not([type=checkbox]):not([type=radio]),.tool-mount select{width:100%;padding:10px 12px;border:1px solid #b4c8d0;border-radius:10px;background:#fffefa;color:var(--ink);margin-top:6px;min-height:46px}.tool-mount button{padding:11px 18px;border:1px solid var(--blue);border-radius:11px;color:white;background:var(--blue);font-weight:850;min-height:46px}.tool-mount button:hover{background:#174b73}.tool-mount button:disabled{opacity:.5;cursor:default}.tool-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,180px),1fr));gap:15px}.tool-output{margin-top:20px;max-width:100%;overflow-wrap:anywhere}.tool-feedback{min-height:1.8em;padding-block:10px;color:#2c725b;font-weight:850}.worksheet-sheet{padding:25px;background:#fffefa;border:1px solid var(--line);border-radius:15px}.worksheet-problem{padding:20px;border-bottom:1px dashed #cbd5da;break-inside:avoid;font-size:1.2rem;line-height:1.7}.answer-key{margin-top:30px;border-top:2px dashed #a3b6bf;padding-top:20px}.flashcard{padding:35px 20px;background:var(--sky);border-radius:22px;text-align:center;font-size:2rem;font-weight:900}.timer-face{font-size:clamp(3rem,10vw,7rem);font-weight:1000;text-align:center;font-variant-numeric:tabular-nums;line-height:1.3;margin:25px 0}.picker-result{font-size:2.2rem;font-weight:950;line-height:1.25;padding:30px;background:var(--peach);border-radius:20px}.print-only,[hidden]{display:none!important}
.support-grid{display:grid;grid-template-columns:1fr 1.55fr;gap:70px;align-items:start}.support-aside h2{font-size:2rem;margin:20px 0}.support-aside>p{color:var(--muted)}.support-picture{position:relative;display:flex;justify-content:center;align-items:center;max-width:330px;background:var(--sky);border-radius:50%;padding:18px}.support-picture img{height:240px;width:auto}.support-picture>span{position:absolute;right:0;top:20px;background:var(--gold);padding:12px 18px;border-radius:50%;font-weight:900;transform:rotate(8deg)}.small-note{background:var(--peach);padding:20px;border-radius:18px;margin:25px 0}.small-note p{font-size:.9rem;margin-top:8px}.form-card{padding:35px;background:white;border:1px solid var(--line);border-radius:28px;box-shadow:var(--shadow)}.form-card h2{margin:12px 0}.form-intro{color:var(--muted);margin-bottom:25px}.field{margin-bottom:22px}.field label{display:block;font-weight:850;margin-bottom:7px}.field label span{font-size:.82rem;font-weight:600;color:var(--muted)}.field input,.field textarea{display:block;width:100%;padding:12px;border:1px solid #b7c9d0;border-radius:10px;color:var(--ink);background:var(--cream)}.field textarea{resize:vertical}.field-hint,.form-privacy{font-size:.8rem;color:var(--muted);margin-top:7px}.adult-check{display:flex;gap:12px;align-items:start;font-size:.9rem;margin:22px 0}.adult-check input{width:20px;height:20px;flex-shrink:0;accent-color:var(--blue)}.form-privacy{margin:20px 0}.honeypot{position:absolute!important;left:-10000px!important;width:1px!important;height:1px!important;overflow:hidden!important}.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:25px}.faq-grid details{background:white;padding:22px;border-radius:18px;border:1px solid var(--line)}.faq-grid summary{cursor:pointer;font-weight:900;line-height:1.5}.faq-grid details p{font-size:.95rem;color:var(--muted);margin-top:15px}.quick-help{margin-top:65px}.quick-help h2{margin-top:12px}.privacy-layout{display:grid;grid-template-columns:230px minmax(0,800px);gap:65px}.policy-nav{position:sticky;top:25px;align-self:start}.policy-nav a{display:block;margin:16px 0;font-size:.87rem}.policy{font-size:1.04rem;line-height:1.8}.policy h2{font-size:1.8rem;margin:35px 0 16px}.policy p{color:#4c6473;margin-top:16px}.policy-summary{padding:25px;background:var(--mint);border-radius:22px;display:flex;gap:20px}.policy-summary>span{font-size:2.8rem;line-height:1;color:var(--orange)}.policy-summary p{margin:0}.updated{font-size:.85rem;color:var(--muted);margin-top:20px}.success-card{padding:45px;background:var(--sky);border-radius:30px;margin:45px 0}.success-card h1{max-width:850px}
.site-footer{margin-top:85px;background:var(--ink);color:#f4f8f9;padding:55px 0 25px}.footer-grid{display:grid;grid-template-columns:1.3fr repeat(3,1fr);gap:40px}.footer-brand{color:white;font-size:1.65rem}.footer-brand span{color:var(--gold);font-size:1.7rem}.footer-grid p{font-size:1.1rem;margin-top:18px;color:#d7e5ec}.footer-grid .footer-small{font-size:.8rem;color:#adcad9}.footer-grid nav h2{font-size:.9rem;letter-spacing:0;font-weight:900;margin-bottom:18px;color:#f9d789}.footer-grid nav a{display:block;color:#d8e7ee;font-size:.86rem;text-decoration:none;margin-top:12px}.footer-grid nav a:hover{color:white;text-decoration:underline}.footer-bottom{margin-top:40px;padding-top:22px;border-top:1px solid #426075;display:flex;justify-content:space-between;gap:20px;font-size:.7rem;color:#adcad9}
@media(min-width:1500px){.hero-poster{min-height:550px}.hero{gap:80px}.poster-copy{font-size:3.7rem}}
@media(max-width:1120px){.desktop-nav{display:none}.mobile-nav{display:block;position:relative;z-index:20}.mobile-nav summary{padding:10px 16px;border:1px solid #adc5cf;background:white;border-radius:10px;list-style:none;font-weight:900;cursor:pointer}.mobile-nav summary span{margin-left:18px;color:var(--orange)}.mobile-nav nav{position:absolute;right:0;top:58px;min-width:230px;background:white;padding:20px;border:1px solid var(--line);box-shadow:0 14px 35px #183e5a20;border-radius:18px}.mobile-nav nav a{display:block;padding:10px 8px;font-weight:850;text-decoration:none;color:var(--ink)}.hero{gap:35px}.hero-poster{min-height:465px}.poster-copy{font-size:2.6rem}.hero-facts{gap:20px}.teacher-banner{gap:35px;padding:38px}.games-grid{grid-template-columns:repeat(3,1fr)}.embed-layout{grid-template-columns:1fr 380px;gap:35px}.article-layout{gap:40px;grid-template-columns:205px 1fr}.privacy-layout{gap:40px;grid-template-columns:190px 1fr}.footer-grid{gap:25px}}
@media(max-width:800px){.wrap{width:calc(100% - 40px)}.hero{grid-template-columns:1fr;padding-top:45px;gap:40px}.hero-copy{max-width:640px}.hero h1{font-size:clamp(3.4rem,8vw,4.8rem)}.hero-poster{max-width:560px;min-height:455px;width:94%;margin:0 auto}.poster-copy{font-size:3.4rem}.hero-cat{width:48%;right:10px}.card-grid.three,.teacher-tools{grid-template-columns:1fr}.card-grid.two{grid-template-columns:1fr 1fr}.resource-card{min-height:215px}.resource-card p{max-width:90%}.card-marker{margin-bottom:20px}.games-grid{grid-template-columns:repeat(2,1fr)}.teacher-banner{grid-template-columns:1fr;gap:20px;padding:35px}.teacher-banner h2{font-size:2.65rem}.tool-preview{max-width:460px;min-height:300px;width:95%;margin:auto}.app-strip{flex-wrap:wrap}.app-strip>div{flex-basis:calc(100% - 130px)}.app-strip>.button{margin-left:113px}.section-heading{align-items:start}.section-heading>.text-link{max-width:150px;flex-shrink:0;font-size:.9rem}.page-intro.with-aside{grid-template-columns:1fr 140px;gap:25px}.intro-game-art img{width:110px;height:110px}.game-detail{grid-template-columns:1fr;gap:30px}.table-links{grid-template-columns:repeat(4,1fr)}.table-layout{grid-template-columns:1fr;gap:25px}.fact-table{max-width:460px}.article-layout{grid-template-columns:1fr;gap:25px}.article-toc{position:static;display:flex;gap:5px 20px;flex-wrap:wrap}.article-toc .eyebrow{width:100%}.article-toc a{margin:5px 0}.embed-layout{grid-template-columns:1fr}.embed-preview{max-width:420px;justify-self:center;width:100%}.support-grid{grid-template-columns:1fr;gap:30px}.support-aside{max-width:650px}.support-picture{display:none}.privacy-layout{grid-template-columns:1fr;gap:20px}.policy-nav{position:static;display:flex;flex-wrap:wrap;gap:8px 25px}.policy-nav .eyebrow{width:100%}.policy-nav a{margin:5px 0}.footer-grid{grid-template-columns:1fr 1fr;gap:35px}.footer-bottom{flex-direction:column;gap:8px}.age-grid{grid-template-columns:1fr}.paper-banner{flex-direction:column;align-items:start}}
@media(max-width:480px){.wrap{width:calc(100% - 32px)}.site-header{padding-block:17px;gap:10px}.brand{font-size:1.25rem;gap:8px}.brand img{width:38px;height:38px;border-radius:10px}.brand small{font-size:.58rem}.mobile-nav summary{padding:8px 11px;font-size:.8rem}.mobile-nav summary span{margin-left:9px}.hero{padding-top:32px;gap:35px}.hero h1{font-size:3.15rem;letter-spacing:-.055em}.hero-lede{font-size:1.06rem}.eyebrow{font-size:.66rem}.actions{gap:11px}.button{font-size:.91rem;padding:13px 17px;gap:15px;min-height:50px}.hero-facts{gap:22px;margin-top:25px}.hero-facts span{font-size:.65rem}.hero-facts strong{font-size:1.25rem}.hero-poster{min-height:390px;border-width:7px;border-radius:28px;width:96%}.poster-label{font-size:.52rem;margin:25px 19px 0}.poster-copy{font-size:2.7rem;margin:24px 20px;max-width:190px}.hero-cat{bottom:53px;width:52%;right:0;height:65%}.poster-note{font-size:.69rem;padding:15px 12px}.number-sticker{font-size:4.8rem;bottom:65px}.number-sticker.one{left:29%}.star-sticker{font-size:3rem;right:21px;top:26px}.section-heading{display:block;margin-top:48px}.section-heading>.text-link{max-width:none;margin-top:18px}.section-heading h2{font-size:2rem}.section-heading p:not(.eyebrow){font-size:1rem}.card-grid.two,.conversation-grid,.faq-grid{grid-template-columns:1fr}.resource-card{padding:25px;min-height:210px}.resource-card h3{font-size:1.6rem}.games-grid{gap:12px}.game-card-main{padding:12px}.game-art{height:116px}.game-art img{width:86px;height:86px}.game-card h3{font-size:1.08rem;margin-top:15px}.game-card p{font-size:.75rem}.game-play{font-size:.75rem;padding:11px 12px}.teacher-banner{padding:28px 24px;border-radius:25px;margin-top:50px}.teacher-banner h2{font-size:2.35rem}.teacher-banner p{font-size:.95rem}.tool-preview{min-height:280px}.teacher-cat{right:-20px;width:110px;height:170px}.paper-lines{padding:23px 20px;gap:16px}.paper-lines strong{font-size:.92rem}.round-note{right:-5px;font-size:.7rem;padding:18px;top:0}.app-strip{padding:24px;gap:17px;margin-block:45px}.app-strip img{width:65px;height:65px;border-radius:16px}.app-strip>div{flex-basis:calc(100% - 85px)}.app-strip .eyebrow{font-size:.57rem}.app-strip h2{font-size:1.3rem}.app-strip p:not(.eyebrow){font-size:.85rem}.app-strip>.button{margin-left:0;width:100%}.breadcrumbs{font-size:.67rem;margin-top:20px}.page-intro{padding:30px 0}.page-intro h1{font-size:2.8rem}.page-intro.with-aside{grid-template-columns:1fr}.intro-game-art,.intro-app-icon{display:none}.lede{font-size:1.04rem;margin-top:19px}.reading{font-size:1rem;line-height:1.8}.reading h2{font-size:1.65rem}.notice{padding:20px}.notice p{font-size:.93rem}.table-links{grid-template-columns:repeat(3,1fr);gap:10px}.table-links a{padding:16px 8px}.table-links strong{font-size:2.2rem}.table-links a>span{font-size:.61rem}.table-scroll{padding:12px}.worked-example,.worked-box{padding:22px}.tool-mount{padding:20px 16px;border-radius:20px}.worksheet-sheet{padding:12px}.worksheet-problem{padding:16px 10px}.station-plan li{padding:20px 0;gap:17px}.station-plan li>span{font-size:.65rem;padding:7px 8px}.station-plan h3{font-size:1.15rem}.station-plan p{font-size:.91rem}.form-card{padding:25px 20px}.policy{font-size:.95rem}.policy h2{font-size:1.6rem}.policy-summary{padding:20px}.policy-summary>span{display:none}.footer-grid{grid-template-columns:1fr 1fr;gap:30px 22px}.footer-grid>div{grid-column:1/-1}.footer-grid nav h2{font-size:.86rem}.footer-grid nav a{font-size:.8rem}.footer-brand{font-size:1.6rem}.site-footer{margin-top:55px;padding-top:35px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important;animation:none!important}}
@media print{body{background:white;color:black;font-size:11pt}.site-header,.site-footer,.breadcrumbs,.tool-controls,.tool-feedback,.no-print,.actions,.article-toc,.policy-nav,.mobile-nav{display:none!important}.wrap{width:100%;margin:0}.print-only{display:block!important}.worksheet-sheet{border:0;padding:0;background:white;box-shadow:none}.worksheet-problem{break-inside:avoid}.answer-key{break-before:page}.tool-mount{padding:0;border:0;box-shadow:none;overflow:visible}h1{font-size:24pt}h2{font-size:17pt}.table-scroll{overflow:visible;border:0;padding:0}.times-chart{min-width:0;font-size:9pt}.times-chart th,.times-chart td{padding:5px}.page-intro{padding:10px 0 20px}.table-links,.hero-poster,.embed-preview{display:none!important}a{color:black;text-decoration:none}.article-layout,.table-layout,.privacy-layout{display:block}.reading{max-width:100%}.worked-box{break-inside:avoid}.fact-table{max-width:400px}}

#ll-print-root{display:none!important}.worksheet-problems{columns:2;column-gap:36px}.worksheet-problem{break-inside:avoid}.tool-mount fieldset{min-width:0;border:1px solid var(--line);border-radius:13px;padding:18px}.tool-mount legend{font-weight:900;padding:0 8px}.tool-mount .tool-controls button{align-self:end}.tool-output button+button{margin-left:8px}.tool-mount input[type=checkbox],.tool-mount input[type=radio]{accent-color:var(--blue)}
/* Keep two-digit print markers inside their column/page clipping boundary. */
@media print{.worksheet-problems,.answer-key ol{padding-inline-start:0;list-style-position:inside}}
@media(max-width:480px){.worksheet-problems{columns:1}.tool-output button+button{margin-left:0;margin-top:8px}}
@media print{body[data-printing="worksheet"]>*{display:none!important}body[data-printing="worksheet"]>#ll-print-root{display:block!important}.worksheet-problems{columns:2;column-gap:36px}.worksheet-problem{break-inside:avoid}.answer-key{break-before:page}#ll-print-root .worksheet-sheet{max-width:none;margin:0;padding:0;border:0;box-shadow:none}}
.tool-controls>.tool-grid,.tool-controls>.tool-actions{grid-column:1/-1}.tool-actions{display:flex;gap:12px;flex-wrap:wrap;align-items:center}.tool-actions button+button{margin:0}.timer-face{display:block}.tool-mount progress{display:block;width:100%;height:12px;accent-color:var(--blue);margin-block:15px}