:root{color:#12304e;font-synthesis:none;text-rendering:optimizelegibility;--navy:#073b78;--blue:#1268b5;--sky:#dff4ff;--yellow:#ffd34e;--red:#ef4d53;--ink:#12304e;--cream:#fffaf0;--shadow:0 14px 36px #073b7824;background:#dff4ff;font-family:Trebuchet MS,Aptos,system-ui,sans-serif}.shared-profile-auth-shell{color:#17324d;background:linear-gradient(145deg,#f7fbf7,#edf5ff);place-items:center;min-height:100dvh;padding:1.25rem;display:grid}.shared-profile-auth-shell>section{background:#fff;border:2px solid #a8c8d8;border-radius:1.5rem;gap:1rem;width:min(100%,34rem);padding:clamp(1.25rem,4vw,2.25rem);display:grid;box-shadow:0 1rem 2.5rem #264d631f}.shared-profile-auth-shell label{gap:.4rem;font-weight:700;display:grid}.shared-profile-auth-shell input{min-height:3rem;font:inherit;border:2px solid #7196ad;border-radius:.75rem;padding:.6rem .75rem}.shared-profile-auth-shell button,.shared-profile-staging-tools button{min-height:2.75rem}.shared-profile-auth-actions{grid-template-columns:repeat(auto-fit,minmax(9rem,1fr));gap:.6rem;display:grid}.shared-profile-staging-tools{z-index:100;background:#fff5cf;border:2px solid #916a20;border-radius:1rem;align-items:center;gap:.5rem;max-width:min(42rem,100vw - 1.5rem);padding:.55rem;display:flex;position:fixed;inset:auto .75rem .75rem auto;box-shadow:0 .4rem 1.2rem #31270f2e}@media (width<=42rem){.shared-profile-staging-tools{flex-wrap:wrap}}*{box-sizing:border-box}html{background:#dff4ff;min-width:320px;min-height:100%}body{min-width:320px;min-height:100dvh;margin:0;overflow:hidden}button,input,select{font:inherit}button{-webkit-tap-highlight-color:transparent}button:focus-visible,input:focus-visible,select:focus-visible{outline-offset:3px;outline:4px solid #ffbf1f}button:active{transform:translateY(2px)scale(.99)}.app{background:linear-gradient(160deg,#e9f9ff 0%,#d9f1ff 62%,#cbe7f7 100%);grid-template-columns:142px minmax(0,1fr);height:100dvh;display:grid}.app-main{scroll-behavior:smooth;min-width:0;height:100%;position:relative;overflow:hidden auto}.profile-commercial .app-main{scroll-behavior:auto}.commercial-storage-alert{z-index:1000;color:#4d3218;background:#fff8e8;border:2px solid #9b5b1f;border-radius:16px;flex-wrap:wrap;align-items:center;gap:10px;max-width:720px;margin:auto;padding:14px 16px;display:flex;position:fixed;inset:12px 12px auto;box-shadow:0 8px 24px #37241233}.commercial-storage-alert strong{font-size:1.05rem}.commercial-storage-alert span{flex:320px}.commercial-storage-alert button{color:#fff;cursor:pointer;background:#754316;border:0;border-radius:12px;padding:10px 14px;font-weight:800}.commercial-storage-recovery{place-items:center;min-height:100dvh;padding:24px;display:grid}.mobile-header{display:none}.mobile-header-actions{align-items:center;gap:9px;display:flex}.mobile-grownups-button,.mobile-maths-button{color:#536878;cursor:pointer;background:#f5f8fa;border:2px solid #d3dfe5;border-radius:15px;place-items:center;min-width:52px;min-height:52px;padding:4px 7px;line-height:1;display:grid;box-shadow:0 3px #c4d0d6}.mobile-grownups-button>span,.mobile-maths-button>span{font-size:1.45rem}.mobile-grownups-button small,.mobile-maths-button small{margin-top:2px;font-size:.55rem;font-weight:900}.category-rail{color:#fff;z-index:20;background:linear-gradient(#073b78 0%,#0b4f92 55%,#073b78 100%);flex-direction:column;height:100%;min-height:0;display:flex;box-shadow:7px 0 22px #052b5833}.rail-home,.settings-button{color:#fff;cursor:pointer;background:0 0;border:0;flex:none;place-items:center;gap:2px;min-height:82px;display:grid}.rail-home{background:#ffffff14;border-bottom:1px solid #ffffff24}.rail-home span{filter:drop-shadow(0 4px 2px #0000002e);font-size:2.15rem}.rail-home strong{letter-spacing:.04em;font-size:.82rem}.settings-button{border-top:1px solid #ffffff29;grid-template-columns:auto auto;gap:6px;min-height:66px;font-size:.72rem}.settings-button span:first-child{font-size:1.35rem}.category-list{overscroll-behavior:contain;scrollbar-width:thin;scrollbar-color:#ffffff80 transparent;gap:6px;padding:8px 7px;display:grid;overflow-y:auto}.category-list button{color:#fff;cursor:pointer;text-align:center;background:0 0;border:2px solid #0000;border-radius:16px;place-items:center;gap:2px;min-height:66px;padding:6px 4px;font-size:.7rem;font-weight:800;line-height:1.05;display:grid}.category-list button:hover,.category-list button:focus-visible{background:#ffffff1a}.category-list button.is-selected{color:var(--category-colour);background:var(--category-bg);border-color:#fff;box-shadow:0 5px 14px #0000002e}.category-icon{font-size:1.75rem;line-height:1}.page-enter{animation:.34s ease-out both page-enter}@keyframes page-enter{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}.home-screen,.category-screen,.result-screen,.settings-screen{min-height:100%;padding:clamp(16px,2.2vw,30px)}.hero-card{min-height:min(58vh,540px);box-shadow:var(--shadow);background:linear-gradient(135deg,#fffffffa,#f5fcffeb);border:2px solid #fff;border-radius:34px;grid-template-columns:minmax(430px,1.08fr) minmax(350px,.92fr);display:grid;position:relative;overflow:hidden}.hero-card:before{content:"";filter:blur(1px);background:#ffffffa6;border-radius:50%;width:380px;height:210px;position:absolute;top:-80px;right:-60px}.hero-card:after{content:"";background:repeating-linear-gradient(90deg,#8b694c 0 42px,#d9b687 42px 56px);border-top:7px solid #5f5048;height:18px;position:absolute;inset:auto 0 0}.hero-copy{z-index:2;flex-direction:column;justify-content:center;align-items:flex-start;padding:clamp(28px,4vw,60px);display:flex;position:relative}.station-sign{background:var(--navy);color:#fff;outline:3px solid var(--navy);letter-spacing:.17em;border:4px solid #fff;border-radius:9px;margin:0 0 18px;padding:7px 18px;font-size:.82rem;font-weight:900;display:inline-flex;box-shadow:0 5px #062e5c}.hero-copy h1{color:var(--navy);letter-spacing:-.055em;text-wrap:balance;margin:0;font-size:clamp(2.9rem,5.2vw,5.6rem);line-height:.94}.hero-copy h2{color:#285a82;text-wrap:balance;max-width:670px;margin:14px 0 25px;font-size:clamp(1.35rem,2.25vw,2.25rem);line-height:1.15}.hero-vehicle{z-index:1;background:linear-gradient(#9edffd 0%,#dff6ff 62%,#8fc96b 62%,#6aa751 100%);place-items:center;padding:30px 20px 56px;display:grid;position:relative;overflow:hidden}.hero-vehicle:before,.hero-vehicle:after{content:"";background:#ffffffe6;border-radius:50%;width:70px;height:36px;position:absolute;top:15%;left:10%;box-shadow:45px -8px 0 14px #ffffffe6,90px 5px 0 -4px #ffffffe6}.hero-vehicle:after{top:25%;left:65%;transform:scale(.72)}.privacy-note{white-space:nowrap;color:#245c3b;z-index:5;background:#ffffffeb;border-radius:999px;padding:8px 13px;font-size:.75rem;font-weight:800;position:absolute;bottom:32px;left:50%;transform:translate(-50%);box-shadow:0 5px 18px #1a4b2529}.microphone-button{color:#fff;cursor:pointer;isolation:isolate;text-align:left;background:linear-gradient(#ef5c62,#d93543);border:0;border-radius:24px;align-items:center;gap:13px;min-width:min(100%,390px);min-height:82px;padding:12px 24px 12px 14px;display:flex;position:relative;box-shadow:0 8px #a91f2b,0 15px 26px #ce293742}.microphone-button:hover{filter:brightness(1.04)}.mic-icon{background:#fff;border-radius:50%;flex:0 0 58px;place-items:center;width:58px;height:58px;font-size:2rem;display:grid;box-shadow:0 3px 8px #7a10193d}.mic-label{letter-spacing:.035em;font-size:clamp(1rem,1.4vw,1.25rem);font-weight:950;line-height:1.05}.microphone-button.is-listening{background:linear-gradient(#1474c7,#075097);box-shadow:0 8px #053567,0 15px 28px #073b7847}.mic-ripple{pointer-events:none;opacity:0;z-index:-1;border:3px solid #fff;border-radius:50%;width:58px;height:58px;position:absolute;top:41px;left:43px;transform:translate(-50%,-50%)}.is-listening .mic-ripple{animation:1.5s ease-out infinite ripple}.is-listening .ripple-two{animation-delay:.65s}@keyframes ripple{0%{opacity:.7;transform:translate(-50%,-50%)scale(.85)}to{opacity:0;transform:translate(-50%,-50%)scale(2.1)}}.microphone-button.is-compact{border-radius:50%;width:58px;min-width:58px;height:58px;min-height:58px;padding:5px;box-shadow:0 4px #a91f2b}.microphone-button.is-compact .mic-icon{flex-basis:48px;width:48px;height:48px;font-size:1.55rem}.microphone-button.is-compact .mic-ripple{top:29px;left:29px}.listening-feedback{min-height:34px;color:var(--blue);align-items:center;gap:10px;padding:15px 3px 3px;display:flex}.listening-feedback strong{font-size:1rem}.sound-bars{align-items:center;gap:3px;height:22px;display:flex}.sound-bars i{background:var(--blue);border-radius:4px;width:4px;height:8px;animation:.7s ease-in-out infinite alternate soundbar}.sound-bars i:nth-child(2){animation-delay:-.3s}.sound-bars i:nth-child(3){animation-delay:-.55s}.sound-bars i:nth-child(4){animation-delay:-.15s}@keyframes soundbar{to{height:22px}}.type-word-form{width:min(100%,460px);margin-top:9px}.type-word-form label{color:#4b6a83;margin:0 0 5px 5px;font-size:.78rem;font-weight:800;display:block}.type-word-form div{background:#eef7fb;border:2px solid #bddae8;border-radius:15px;grid-template-columns:1fr auto;display:grid;overflow:hidden}.type-word-form input{min-width:0;color:var(--ink);background:0 0;border:0;padding:13px 15px;font-size:1rem}.type-word-form button{color:var(--navy);cursor:pointer;background:#d6eaf3;border:0;padding:0 17px;font-weight:900}.train-scene{aspect-ratio:1.55;filter:drop-shadow(0 13px 10px #18445d33);width:min(100%,480px);position:relative}.train-body{height:57%;transition:transform .4s;position:absolute;bottom:22%;left:8%;right:5%}.train-boiler{background:linear-gradient(#2385cf,#0b58a0);border:clamp(5px,1.4vw,9px) solid #06386d;border-radius:48% 18% 18% 48%;width:57%;height:45%;position:absolute;bottom:19%;left:24%;box-shadow:inset 0 10px #ffffff24}.train-star{aspect-ratio:1;color:#07519a;background:#ffd34e;border:5px solid #fff4b3;border-radius:50%;place-items:center;width:37%;font-size:clamp(1.1rem,3vw,2.2rem);display:grid;position:absolute;top:20%;left:36%}.train-cab{background:#146fbb;border:clamp(5px,1.4vw,9px) solid #06386d;border-radius:12px 12px 2px 2px;width:31%;height:71%;position:absolute;bottom:21%;right:2%}.train-cab:before{content:"";background:#ef4d53;border:6px solid #06386d;border-radius:8px;width:122%;height:16%;position:absolute;top:-17%;left:-11%}.train-window{background:linear-gradient(145deg,#fff 0 16%,#9ee5ff 17% 100%);border:6px solid #06386d;border-radius:8px;width:68%;height:34%;position:absolute;top:16%;left:16%}.train-chimney{background:#083e74;border:5px solid #062e58;border-radius:5px 5px 0 0;width:14%;height:32%;position:absolute;top:2%;left:29%}.train-chimney:before{content:"";background:#ef4d53;border:5px solid #062e58;border-radius:6px;width:154%;height:22%;position:absolute;top:-18%;left:-27%}.train-cowcatcher{clip-path:polygon(100% 0,100% 100%,0 100%);background:#ef4d53;border-bottom:8px solid #073b78;width:20%;height:25%;position:absolute;bottom:15%;left:7%}.train-wheel{aspect-ratio:1;background:radial-gradient(circle,#ffd34e 0 18%,#ef4d53 19% 54%,#fff 55% 62%,#073b78 63%);border-radius:50%;width:23%;position:absolute;bottom:0}.wheel-one{left:20%}.wheel-two{left:47%}.wheel-three{width:18%;bottom:2%;right:4%}.steam{z-index:2;aspect-ratio:1;opacity:.9;background:#fff;border-radius:50%;width:13%;position:absolute;top:5%;left:30%;box-shadow:24px -18px 0 6px #ffffffd6,50px -27px 0 -3px #ffffffa6}.steam-two{opacity:.65;top:-2%;left:45%;transform:scale(.7)}.train-track{border-top:8px solid #664b3c;border-bottom:8px solid #664b3c;justify-content:space-around;height:10%;display:flex;position:absolute;bottom:11%;left:1%;right:1%}.train-track span{background:#b9885e;width:6%;transform:skew(-12deg)}.train-scene.is-moving .train-body{animation:.55s ease-in-out infinite alternate train-bob}.train-scene.is-moving .steam{animation:1.3s ease-out infinite steam-puff}.train-scene.is-moving .steam-two{animation-delay:.6s}@keyframes train-bob{to{transform:translateY(-5px)rotate(-.4deg)}}@keyframes steam-puff{0%{opacity:.8;transform:translate(0)scale(.65)}to{opacity:0;transform:translate(48px,-44px)scale(1.3)}}.train-scene.is-compact{width:180px}.car-scene{aspect-ratio:1.58;filter:drop-shadow(0 13px 10px #44341233);width:min(100%,520px);position:relative}.car-scene svg{width:100%;height:100%;display:block;overflow:visible}.car-hill-back{fill:#a7d47c}.car-hill-front{fill:#70ad55}.car-road{fill:none;stroke:#4e504b;stroke-width:68px;stroke-linecap:round}.car-road-marking{fill:none;stroke:#fff8da;stroke-width:5px;stroke-linecap:round;stroke-dasharray:22 22}.adventure-car{transform-origin:270px 220px;transition:transform .35s}.car-shadow{fill:#382d112e}.car-body{fill:#f6bd16;stroke:#3b321d;stroke-width:10px;stroke-linejoin:round}.car-highlight{fill:#ffd95b;opacity:.88}.car-window{fill:#dff7f5;stroke:#3b321d;stroke-width:8px;stroke-linejoin:round}.car-bumper,.car-smile{fill:none;stroke:#3b321d;stroke-width:10px;stroke-linecap:round}.car-wheel{fill:#353630;stroke:#3b321d;stroke-width:8px}.car-wheel-hub{fill:#fff4c9;stroke:#b17b00;stroke-width:7px}.car-headlight{fill:#fff7bf;stroke:#3b321d;stroke-width:7px}.car-door-badge{fill:#fff8dc;stroke:#3b321d;stroke-width:6px}.car-door-star{fill:#e28b18}.car-luggage{fill:#cf6844;stroke:#3b321d;stroke-width:7px;stroke-linejoin:round}.road-sign path{fill:#fff4c9;stroke:#3b321d;stroke-width:9px;stroke-linejoin:round;stroke-linecap:round}.road-sign path:first-child{fill:none}.road-sign circle{fill:#f6bd16;stroke:#3b321d;stroke-width:5px}.car-scene.is-moving .adventure-car{animation:.58s ease-in-out infinite alternate car-explore}@keyframes car-explore{to{transform:translateY(-5px)rotate(-.65deg)}}.car-scene.is-compact{width:180px}.choice-dialog>.car-scene{margin:-45px auto -17px;transform:scale(.64)}.number-line-vehicle .car-hill,.number-line-vehicle .car-road,.number-line-vehicle .car-road-marking,.number-line-vehicle .road-sign{display:none}.number-line-vehicle .car-scene{top:-1px}.word-shelf{margin-top:clamp(22px,3vw,38px)}.word-shelf h2{color:var(--navy);align-items:center;gap:9px;margin:0 0 13px;font-size:clamp(1.25rem,2vw,1.65rem);display:flex}.word-row{overscroll-behavior-inline:contain;scroll-snap-type:x proximity;grid-template-rows:1fr;grid-auto-columns:minmax(154px,1fr);grid-auto-flow:column;gap:14px;padding:3px 4px 14px;display:grid;overflow-x:auto}.word-row .word-card{scroll-snap-align:start}.word-card{background:#fff;border:2px solid #ffffffe6;border-radius:20px;min-width:0;transition:transform .18s,box-shadow .18s;position:relative;overflow:hidden;box-shadow:0 8px 22px #073b781c}.word-card:hover{transform:translateY(-3px);box-shadow:0 12px 27px #073b7829}.word-card-main{cursor:pointer;width:100%;color:var(--navy);background:0 0;border:0;gap:8px;padding:10px 10px 13px;display:grid}.word-card-main strong{white-space:nowrap;text-overflow:ellipsis;font-size:.98rem;overflow:hidden}.card-star{color:#6e8193;cursor:pointer;z-index:4;background:#ffffffeb;border:0;border-radius:50%;width:36px;height:36px;font-size:1.45rem;position:absolute;top:7px;right:7px;box-shadow:0 3px 10px #073b7824}.card-star.is-favourite{color:#f0a900}.word-artwork{--art-bg:#e2edf7;--art-colour:#334f70;background:radial-gradient(circle at 50% 40%, white, var(--art-bg) 68%);border-radius:14px;place-items:center;width:100%;height:118px;display:grid;position:relative;overflow:hidden}.art-emoji{z-index:2;filter:drop-shadow(0 5px 3px #1e344629);font-size:3.7rem;position:relative}.art-letter{background:var(--art-colour);color:#fff;z-index:3;border:3px solid #fff;border-radius:50%;place-items:center;width:31px;height:31px;font-weight:950;display:grid;position:absolute;bottom:8px;right:10px}.art-sparkle{color:var(--art-colour);opacity:.28;position:absolute}.sparkle-one{font-size:1.3rem;top:12px;left:15px}.sparkle-two{bottom:20px;right:16px}.train-artwork{background:linear-gradient(#bfeaff 62%,#8bc56f 62%)}.train-artwork .train-scene{width:165px;transform:translateY(7px)}.transport-artwork{background:linear-gradient(#dff4ff 0 70%,#d8edc1 70%)}.transport-artwork svg{width:100%;height:100%;display:block}.animal-artwork{background:#dff3ef}.animal-artwork svg{width:100%;height:100%;display:block}.dinosaur-artwork{background:#dff3e9}.dinosaur-artwork svg{width:100%;height:100%;display:block}.gaming-artwork{background:#e9e5f7}.gaming-artwork svg{width:100%;height:100%;display:block}.home-artwork{background:#f6ecdf}.home-artwork svg{width:100%;height:100%;display:block}.cube-artwork{background:linear-gradient(145deg,#dff6ce,#9bd277)}.cube{color:#eaffde;background:#5fae47;border:4px solid #347b36;place-items:center;font-weight:950;display:grid;position:absolute;box-shadow:inset -8px -8px #215d2930}.cube-one{z-index:2;width:70px;height:70px;font-size:2rem;transform:rotate(-5deg)}.cube-two,.cube-three{width:43px;height:43px}.cube-two{bottom:12px;left:17px;transform:rotate(11deg)}.cube-three{top:8px;right:13px;transform:rotate(15deg)}.browse-strip{color:#fff;box-shadow:var(--shadow);background:#073b78;border-radius:26px;grid-template-columns:auto 1fr;align-items:center;gap:24px;margin-top:26px;padding:22px;display:grid}.eyebrow{text-transform:uppercase;letter-spacing:.16em;opacity:.75;font-size:.72rem;font-weight:950}.browse-strip h2{margin:4px 0 0;font-size:1.5rem}.browse-shortcuts{grid-template-columns:repeat(6,minmax(88px,1fr));gap:9px;display:grid}.browse-shortcuts button{min-height:82px;color:var(--shortcut-colour);background:var(--shortcut-bg);cursor:pointer;border:2px solid #ffffffbf;border-radius:16px;place-items:center;gap:3px;padding:8px 4px;display:grid}.browse-shortcuts button span{font-size:1.7rem}.browse-shortcuts button strong{font-size:.75rem}.commercial-interest-packs{background:linear-gradient(145deg,var(--world-surface),color-mix(in srgb,var(--world-background),white 38%));box-shadow:var(--shadow);border:3px solid #ffffffeb;border-radius:28px;margin-top:26px;padding:clamp(18px,2.5vw,28px)}.commercial-interest-pack-heading{justify-content:space-between;align-items:flex-end;gap:18px;margin-bottom:16px;display:flex}.commercial-interest-pack-heading h2{color:var(--world-primary-dark);margin:3px 0;font-size:clamp(1.45rem,2.5vw,2rem)}.commercial-interest-pack-heading p{max-width:820px;color:color-mix(in srgb,var(--world-ink),#71808a 38%);margin:7px 0 0;font-weight:750;line-height:1.42}.commercial-interest-pack-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:11px;display:grid}.commercial-interest-pack-grid button{border:2px solid color-mix(in srgb,var(--world-primary),white 58%);min-width:0;min-height:128px;color:var(--world-ink);text-align:left;cursor:pointer;box-shadow:0 5px 0 color-mix(in srgb,var(--world-primary),white 70%);background:#ffffffe6;border-radius:20px;grid-template-rows:auto 1fr;grid-template-columns:auto minmax(0,1fr);gap:4px 10px;padding:13px;display:grid}.commercial-interest-pack-grid button:hover,.commercial-interest-pack-grid button:focus-visible{border-color:var(--world-primary);outline:3px solid color-mix(in srgb,var(--world-accent),transparent 52%);transform:translateY(-2px)}.commercial-interest-pack-grid .pack-icon{grid-row:1/3;align-self:start;font-size:2rem;line-height:1}.commercial-interest-pack-grid strong{min-width:0;color:var(--world-primary-dark);font-size:.9rem;line-height:1.2}.commercial-interest-pack-grid small{color:#637482;min-width:0;font-weight:720;line-height:1.3}.commercial-interest-pack-grid .is-gaming-pack{background:linear-gradient(145deg,#f4edff,#e4f2ff);border-color:#8b6fbd;box-shadow:0 5px #c3b2df}.commercial-interest-pack-grid .is-world-pack:not(.is-gaming-pack){border-color:var(--world-accent);background:linear-gradient(145deg,#fff,color-mix(in srgb,var(--world-background),white 38%))}.commercial-browse-scope-note{border:2px solid color-mix(in srgb,var(--world-primary),white 60%);color:#5d7180;background:#ffffffdb;border-radius:16px;justify-content:space-between;align-items:center;gap:15px;max-width:1220px;margin:15px auto 0;padding:11px 16px;display:flex}.commercial-browse-scope-note strong{color:var(--world-primary-dark);font-size:.82rem}.commercial-browse-scope-note span{text-align:right;font-size:.76rem;font-weight:720}.page-heading{box-shadow:var(--shadow);border-bottom:7px solid var(--active-category);z-index:8;background:#fff;border-radius:26px;grid-template-columns:auto 1fr minmax(230px,380px);align-items:center;gap:17px;padding:19px 23px;display:grid;position:sticky;top:14px}.heading-icon{background:var(--active-category-bg);border-radius:20px;place-items:center;width:74px;height:74px;font-size:2.7rem;display:grid}.page-heading h1{color:var(--active-category);letter-spacing:-.03em;margin:1px 0;font-size:clamp(1.7rem,3vw,2.5rem)}.page-heading p{color:#63798b;margin:0;font-size:.85rem;font-weight:700}.category-search{background:#eef6f9;border:2px solid #ccdee7;border-radius:16px;align-items:center;gap:8px;min-height:53px;padding:0 13px;display:flex}.category-search input{width:100%;min-width:0;color:var(--ink);background:0 0;border:0;outline:0}.word-grid{grid-template-columns:repeat(auto-fill,minmax(155px,1fr));gap:15px;padding:22px 2px 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21px;font-size:1rem;font-weight:950;box-shadow:0 6px #42276d}.art-icons{z-index:2;filter:drop-shadow(0 7px 4px #1e344629);place-items:center;width:78%;height:78%;display:grid;position:relative}.art-icons .art-emoji{transform:translate(var(--primary-x,0),var(--primary-y,0)) rotate(var(--primary-r,0deg));font-size:clamp(3.4rem,5.2vw,4.5rem);line-height:1}.art-secondary{aspect-ratio:1;background:#ffffffeb;border:3px solid #fff;border-radius:50%;place-items:center;width:43%;font-size:clamp(1.45rem,2.6vw,2.25rem);display:grid;position:absolute;bottom:0;right:2%;box-shadow:0 5px 12px #073b782b}.word-artwork.variant-1{--primary-r:-4deg;--primary-x:-3%}.word-artwork.variant-2{--primary-r:4deg;--primary-y:-2%}.word-artwork.variant-3{--primary-x:4%}.word-artwork.variant-4{--primary-r:-2deg;--primary-y:3%}.word-artwork.variant-5{--primary-r:3deg;--primary-x:-2%}.word-artwork.variant-6{--primary-y:-4%}.word-artwork.variant-7{--primary-r:-3deg;--primary-x:3%}.art-scene{pointer-events:none;position:absolute;inset:0;overflow:hidden}.art-scene i{opacity:.24;display:block;position:absolute}.scene-railway{background:linear-gradient(#cef 66%,#9ed17f 66%)}.scene-railway .art-scene:after{content:"";border-top:4px solid #7b5d47;border-bottom:4px solid #7b5d47;height:8px;position:absolute;bottom:9%;left:0;right:0}.scene-road{background:linear-gradient(#dff4ff 63%,#8fc674 63%)}.scene-road .art-scene:after{content:"";clip-path:polygon(5% 40%,95% 40%,100% 100%,0 100%);background:#65717a;border-top:3px dashed #fff;height:25%;position:absolute;bottom:5%;left:-5%;right:-5%}.scene-water{background:linear-gradient(#dff7ff 52%,#68c7e5 52%)}.scene-water .art-scene:after{content:"≈ ≈ ≈";color:#fff;letter-spacing:.35em;opacity:.7;font-size:1.5rem;position:absolute;bottom:8%;left:0;right:0}.scene-sky{background:linear-gradient(#bde8ff,#effaff)}.scene-sky .art-scene i:first-child,.scene-space .art-scene i{background:#fff;border-radius:50%;width:22px;height:12px;top:15%;left:13%;box-shadow:18px -4px 0 4px #fff}.scene-nature{background:linear-gradient(#e7f7d8 64%,#9bd073 64%)}.scene-nature .art-scene:after{content:"";background:#62a955;border-radius:50% 50% 8px 8px;width:20px;height:34px;position:absolute;bottom:20%;left:9%;box-shadow:15px 5px 0 -4px #4d9347}.scene-home{background:linear-gradient(145deg,#fff2e2,#f3dfcb)}.scene-home .art-scene:after{content:"";background:repeating-linear-gradient(90deg,#d4ac82 0 28px,#bd8d62 28px 31px);height:23%;position:absolute;inset:auto 0 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(orientation:portrait),(width<=900px){.category-rail{flex-direction:row;display:flex}.rail-practice,.rail-maths{border-right:1px solid #ffffff29;flex:0 0 88px;height:84px;min-height:84px;font-size:.6rem}.rail-practice span,.rail-maths span{font-size:1.45rem}.category-list{flex:1}.hero-question{flex-direction:column;gap:9px}.hero-question .speak-label-button{align-self:center}.practice-invite{grid-template-columns:auto 1fr}.practice-invite>button{grid-column:1/-1;width:100%}.result-card.is-long-word{grid-template-columns:1fr}.related-picture-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.practice-screen{padding:13px}.practice-card{grid-template-columns:1fr}.practice-picture-column{min-height:390px}.practice-play-column{padding:30px}.practice-picture-column .word-artwork{max-width:480px}.attempt-row{grid-template-columns:auto 1fr auto}.attempt-tries{grid-column:2/-1}.attempt-status{grid-area:1/3}}@media (width<=600px){.practice-invite{text-align:center;grid-template-columns:1fr}.practice-invite-icon{margin:auto}.practice-invite .heading-with-speaker{justify-content:center}.heading-with-speaker{align-items:center}.page-heading .heading-with-speaker{align-items:flex-start}.speak-label-button{width:44px;min-width:44px;height:44px;min-height:44px}.result-spelling .result-word.length-long{font-size:clamp(1.65rem,8.4vw,2.8rem)}.letter-track.length-long{gap:2px;padding:10px 5px}.letter-track.length-long span{border-radius:7px;height:42px;font-size:1rem}.related-picture-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:7px}.related-picture-grid .word-card-main strong{font-size:.68rem}.related-picture-grid .word-artwork{height:82px}.practice-heading{padding:13px}.practice-heading-icon{width:55px;height:55px}.practice-picture-column{min-height:300px;padding:22px 14px}.practice-play-column{padding:23px 14px 32px}.keyboard-row{gap:3px}.keyboard-row button{flex:1;min-width:0;height:43px;font-size:.8rem}.practice-support-actions{grid-template-columns:1fr}.practice-summary{grid-template-columns:repeat(2,1fr)}.attempt-row{grid-template-columns:auto 1fr}.attempt-status,.attempt-tries{grid-column:2}.attempt-status{grid-row:auto;justify-self:start}.review-title-row{flex-direction:column;align-items:flex-start}}@supports (padding:max(0px)){.mobile-header{padding-left:max(12px,env(safe-area-inset-left));padding-right:max(12px,env(safe-area-inset-right));padding-top:max(8px,env(safe-area-inset-top))}.home-screen,.category-screen,.result-screen,.settings-screen,.practice-screen{padding-right:max(clamp(16px,2.2vw,30px),env(safe-area-inset-right));padding-left:max(clamp(16px,2.2vw,30px),env(safe-area-inset-left));padding-bottom:max(clamp(16px,2.2vw,30px),env(safe-area-inset-bottom))}}.maths-invite{box-shadow:var(--shadow);background:linear-gradient(135deg,#dff7ff,#eef8d9);border:3px solid #fff;border-bottom:7px solid #087c8b;border-radius:25px;grid-template-columns:auto 1fr auto;align-items:center;gap:17px;margin-top:17px;padding:18px 22px;display:grid}.maths-invite-icon{color:#fff;background:linear-gradient(145deg,#0f91a1,#08717e);border-radius:20px;place-items:center;width:67px;height:67px;font-size:2.7rem;font-weight:950;display:grid;box-shadow:0 6px #075660}.maths-invite h2{color:#075f6b;font-size:1.55rem}.maths-invite p{color:#526f73;margin:5px 0 0;font-weight:750}.maths-invite>button,.maths-choice>button{color:#fff;cursor:pointer;background:linear-gradient(#118e9e,#08717e);border:0;border-radius:17px;min-height:58px;padding:0 21px;font-size:1rem;font-weight:950;box-shadow:0 6px #075660}.maths-home-screen,.maths-learning-screen,.number-play-screen{background:radial-gradient(circle at 86% 0,#fffffff2,#0000 32%),linear-gradient(145deg,#e5f8ff,#edf8e0);min-height:100%;padding:clamp(16px,2.2vw,30px)}.maths-hero,.maths-page-heading{max-width:1220px;box-shadow:var(--shadow);background:#fff;border-bottom:8px solid #087b8a;border-radius:28px;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:21px;margin:0 auto 20px;padding:clamp(18px,2.6vw,30px);display:grid;overflow:hidden}.maths-hero-symbol,.maths-page-icon{color:#fff;background:linear-gradient(145deg,#1294a4,#08717e);border-radius:23px;place-items:center;width:82px;height:82px;font-size:3.5rem;font-weight:950;display:grid;box-shadow:0 7px #075660}.maths-hero h1,.maths-page-heading h1{color:var(--navy);letter-spacing:-.045em;margin:0;font-size:clamp(2.4rem,5vw,4.5rem)}.maths-hero p,.maths-page-heading p{color:#56727e;margin:7px 0 0;font-size:1.05rem;font-weight:750;line-height:1.45}.maths-hero-vehicle{transform-origin:100%;width:250px;transform:scale(.75)}.maths-hero-vehicle .train-scene,.maths-hero-vehicle .car-scene{width:330px}.maths-choice-grid{grid-template-columns:1fr 1fr;gap:22px;max-width:1120px;margin:0 auto;display:grid}.maths-choice{min-height:340px;box-shadow:var(--shadow);background:#fff;border:3px solid #fff;border-radius:30px;flex-direction:column;align-items:flex-start;padding:30px;display:flex}.maths-choice.learning-choice{background:linear-gradient(155deg,#fff,#dff6ff);border-bottom:8px solid #087b8a}.maths-choice.number-play-choice{background:linear-gradient(155deg,#fff,#f2e8ff);border-bottom:8px solid #7149a8}.maths-choice-icon{background:#e4f7fb;border-radius:22px;place-items:center;width:76px;height:76px;font-size:2.5rem;display:grid;box-shadow:inset 0 -5px #073b781f}.number-play-choice .maths-choice-icon{background:#f1e7ff}.maths-choice h2{color:var(--navy);margin:18px 0 0;font-size:clamp(1.7rem,3vw,2.5rem)}.maths-choice p{color:#5d7481;flex:1;font-weight:750;line-height:1.5}.number-play-choice>button{background:linear-gradient(#7a53ae,#5a398c);box-shadow:0 6px #42276d}.maths-reassurance{color:#526d76;text-align:center;justify-content:center;align-items:center;gap:8px;margin:20px auto 0;font-weight:850;display:flex}.maths-back-button{max-width:1220px;color:var(--navy);cursor:pointer;background:#fff;border:2px solid #b9d5de;border-radius:15px;min-height:48px;margin:0 auto 12px;padding:0 17px;font-weight:900;display:block;box-shadow:0 4px #bed2da}.operation-stack{gap:24px;width:100%;min-width:0;max-width:1220px;margin:0 auto;display:grid}.learning-operation{width:100%;min-width:0;max-width:100%;box-shadow:var(--shadow);background:#fff;border-left:9px solid #087b8a;border-radius:30px;padding:clamp(18px,2.5vw,30px);overflow:hidden}.learning-operation.tone-primary{border-bottom:8px solid #087b8a}.learning-operation.tone-secondary{border-left-color:#3c6db3}.learning-operation.tone-quiet{border-left-color:#9badb8;box-shadow:0 10px 25px #073b7817}.operation-heading{justify-content:space-between;align-items:center;gap:14px;margin-bottom:18px;display:flex}.operation-heading>div{align-items:center;gap:13px;display:flex}.operation-heading h2{color:var(--navy);margin:0;font-size:clamp(1.55rem,3vw,2.25rem)}.operation-symbol{color:#08717e;background:#e0f6f9;border-radius:17px;place-items:center;width:58px;height:58px;font-size:2.3rem;font-weight:950;display:grid}.learning-equation-row{background:linear-gradient(#f2fbff,#e7f6fb);border:3px solid #c5e6ee;border-radius:24px;grid-template-columns:minmax(86px,1fr) auto minmax(86px,1fr) auto minmax(100px,1fr) auto;align-items:center;gap:clamp(8px,1.5vw,18px);padding:clamp(13px,2vw,22px);display:grid}.number-cell{min-width:0;position:relative}.number-cell input,.answer-cell{width:100%;height:104px;color:var(--navy);text-align:center;background:#fff;border:4px solid #78b9c8;border-radius:20px;font-size:clamp(2.1rem,5vw,4rem);font-weight:950;box-shadow:inset 0 5px 8px #073b780f,0 6px #aed5de}.number-cell input{padding:0 35px 0 8px}.number-cell button,.answer-cell button{cursor:pointer;background:#e4f4f8;border:0;border-radius:11px;width:36px;height:36px;font-size:.9rem;line-height:1;position:absolute;bottom:7px;right:7px;overflow:hidden}.answer-cell{background:#fff7d4;border-color:#e7be45;place-items:center;display:grid;position:relative;box-shadow:inset 0 5px 8px #6a4d000f,0 6px #d7b343}.equation-symbol{color:var(--navy);text-align:center;font-size:clamp(2rem,4vw,3.4rem);font-weight:950}.clear-equation{color:#526978;cursor:pointer;background:#fff;border:2px solid #ccdbe1;border-radius:14px;min-height:50px;padding:0 14px;font-weight:900}.maths-completion-target{height:1px;scroll-margin-block:22vh}.maths-gentle-prompt{color:#59717c;justify-content:center;align-items:center;gap:10px;margin:16px 0 0;font-weight:850;display:flex}.maths-gentle-prompt .speak-label-button{width:44px;height:44px}.maths-visual-guide{background:linear-gradient(155deg,#f8fcff,#e9f7fb);border:3px solid #d5ebf0;border-radius:25px;width:100%;min-width:0;max-width:100%;margin-top:20px;padding:clamp(15px,2vw,23px);overflow:hidden}.maths-visual-guide.is-compact{padding:15px}.visual-guide-heading{justify-content:space-between;align-items:center;gap:14px;margin-bottom:17px;display:flex}.visual-guide-heading h3{color:var(--navy);margin:2px 0;font-size:clamp(1.25rem,2.4vw,1.75rem)}.maths-show-me{color:#fff;cursor:pointer;background:linear-gradient(#1679c9,#0755a0);border:0;border-radius:17px;min-height:58px;padding:0 20px;font-size:1rem;font-weight:950;box-shadow:0 6px #07386b}.maths-show-me span{margin-right:6px;font-size:1.35rem}.quantity-learning{gap:14px;display:grid}.quantity-visual{background:#fff;border-radius:20px;justify-content:center;align-items:center;gap:clamp(8px,1.6vw,20px);min-height:110px;padding:17px;display:flex}.object-group{background:#edf8fb;border-radius:16px;flex-wrap:wrap;justify-content:center;gap:7px;min-width:66px;padding:10px;display:flex}.object-group.is-combined{background:#fff5c9;border:3px solid #e7bd3f}.cargo-token{background:linear-gradient(#4fb5e4,#1783c2);border:3px solid #075ba4;border-radius:6px;width:32px;height:27px;display:inline-block;position:relative;box-shadow:0 3px #074578}.cargo-token i{background:#17364e;border-radius:50%;width:7px;height:7px;position:absolute;bottom:-7px;left:3px;box-shadow:16px 0 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#e6bd42;border-radius:22px;align-content:center;place-items:center;gap:3px;min-height:120px;padding:14px;display:grid;box-shadow:inset 0 -6px #d7b3432e}.whole-number-visual span{color:#6d5a21;letter-spacing:.12em;font-size:.72rem;font-weight:950}.whole-number-visual strong{color:var(--navy);font-size:clamp(3.2rem,7vw,5.5rem);line-height:1}.number-line-guide{background:#fff;border-radius:22px;width:100%;min-width:0;max-width:100%;margin-top:16px;padding:16px 12px 12px;overflow:hidden;box-shadow:inset 0 0 0 3px #d7e8ed}.number-line-direction{color:#496779;justify-content:space-between;align-items:center;gap:10px;padding:0 9px 10px;display:flex}.number-line-direction strong{color:#075f87;font-size:1.05rem}.number-line-clue{color:#07558d;cursor:pointer;background:#e4f4ff;border:0;border-radius:14px;min-height:48px;padding:0 14px;font-weight:950;box-shadow:0 4px #b8d7e8}.number-line-clue span{margin-right:5px}.number-line-scroll{scroll-behavior:auto;scrollbar-color:#5d9fb7 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#49616f;border-radius:50%;width:31px;height:31px;position:relative}.station-dot>strong{z-index:3;white-space:nowrap;font-size:1.38rem;font-weight:950;line-height:1;position:absolute;top:37px;left:50%;transform:translate(-50%)}.number-station>small{color:#526a77;text-align:center;margin-top:43px;font-size:.62rem;font-weight:950}.number-station.is-start .station-dot{background:#b9eff3;border-color:#087b8a;box-shadow:0 0 0 5px #087b8a24}.number-station.is-start .station-dot>strong{color:#075f6b;font-size:1.55rem}.number-station.is-final .station-dot{background:#ffd34e;border-color:#d49700;width:39px;height:39px;margin-top:-4px;box-shadow:0 0 0 5px #ffd34e3b}.number-station.is-final .station-dot>strong{color:#875d00;font-size:1.65rem;top:43px}.number-station.is-final>small{margin-top:39px}.number-station.is-reached 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[aria-label*=iMoSaT]{text-transform:none}.imosat-child-top-bar{z-index:40;min-height:72px;padding:8px max(clamp(14px,2.4vw,32px),env(safe-area-inset-right)) 8px max(clamp(14px,2.4vw,32px),env(safe-area-inset-left));background:color-mix(in srgb,var(--world-surface,#fff),white 42%);border-bottom:1px solid color-mix(in srgb,var(--world-primary,#527da0),transparent 74%);justify-content:space-between;align-items:center;gap:16px;display:flex;position:sticky;top:0;box-shadow:0 4px 18px #17364d1a}.imosat-child-top-bar__brand{align-items:center;min-width:0;display:flex}.imosat-child-top-bar__brand>img{object-fit:contain;object-position:left center;width:min(210px,30vw);height:52px;display:block}.imosat-child-top-bar__actions{justify-content:flex-end;align-items:center;gap:8px;display:flex}.imosat-child-top-bar button{border:2px solid color-mix(in srgb,var(--world-primary,#527da0),white 58%);min-width:84px;min-height:50px;color:var(--world-primary-dark,#294d69);font:inherit;cursor:pointer;background:#fff;border-radius:14px;grid-template-columns:auto auto;justify-content:center;align-items:center;gap:6px;padding:6px 10px;font-weight:950;display:grid}.imosat-child-top-bar button[aria-current=page]{background:color-mix(in srgb,var(--world-surface,#fff),var(--world-primary,#527da0) 12%);box-shadow:inset 0 0 0 2px color-mix(in srgb,var(--world-primary,#527da0),transparent 58%)}.imosat-child-top-bar__icon{place-items:center;width:28px;height:28px;font-size:1.4rem;line-height:1;display:grid}.imosat-child-top-bar__icon .discover-buddy{width:28px;height:28px;margin:0;overflow:visible}.imosat-child-top-bar__icon .discover-buddy img{object-fit:contain;width:100%;height:100%}.imosat-child-top-bar__icon .discover-buddy figcaption{display:none}.imosat-child-top-bar.is-compact{min-height:54px;padding:4px max(7px,env(safe-area-inset-right)) 4px 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24%);background:var(--world-primary);color:#fff;min-height:56px;font:inherit;box-shadow:0 5px 0 color-mix(in srgb,var(--world-primary-dark),black 8%);cursor:pointer;border-radius:18px;grid-column:1/-1;justify-self:center;padding:10px 22px;font-size:1.08rem;font-weight:950}.my-buddy-change-button:active{box-shadow:0 2px 0 color-mix(in srgb,var(--world-primary-dark),black 8%);transform:translateY(3px)}.my-buddy-choices{border-top:2px solid color-mix(in srgb,var(--world-primary),transparent 70%);grid-column:1/-1;gap:13px;padding-top:18px;display:grid}.my-buddy-choices>p{color:var(--world-ink);text-align:center;margin:0;font-size:1.15rem;font-weight:950}.my-buddy-choice-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;display:grid}.my-buddy-choice-grid>button{border:3px solid color-mix(in srgb,var(--world-primary),white 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