[hidden]{display:none!important}.numbers-page{max-width:1180px;margin:auto}.numbers-heading{display:flex;align-items:center;gap:20px;margin:0 0 24px;min-width:0}.numbers-heading img{object-fit:contain;flex:none}.numbers-heading h1{font-size:clamp(27px,3.3vw,42px);margin:8px 0;letter-spacing:-.04em}.numbers-heading p{font-size:14px;color:#526984;margin:0;line-height:1.6}.numbers-topic-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.numbers-topic-grid .panel{display:flex;flex-direction:column;align-items:flex-start;margin:0;padding:22px;min-width:0}.numbers-topic-grid h2{font-size:21px;margin:14px 0 8px}.numbers-topic-grid p{font-size:13px;color:#526984;line-height:1.6;margin:0 0 18px}.numbers-topic-grid .primary{margin-top:auto;min-height:44px;width:100%;font-size:11px;text-align:center}.numbers-topic-grid .secondary{margin-top:9px;width:100%;min-height:44px;font-size:10px}.number-explorer-intro{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.5fr);gap:24px;align-items:center;margin-bottom:22px;background:linear-gradient(125deg,#f6fdff,#f9f7ff)}.number-explorer-intro h2{font-size:24px}.number-explorer-intro p{font-size:13px;line-height:1.6;color:#526984}.number-portal{display:block;margin:auto;object-fit:contain}.numbers-trainer{max-width:820px}.number-question{font-size:clamp(23px,3vw,32px);line-height:1.5;margin:10px auto 24px;overflow-wrap:anywhere}.number-equation{font-size:clamp(27px,5vw,46px);font-weight:800;color:#082b65;line-height:1.5;text-align:center;margin:15px 0}.number-example{font-size:clamp(16px,3vw,25px);overflow-wrap:anywhere}.number-answer-form{display:flex;flex-direction:column;align-items:center;gap:18px;width:100%;min-width:0}.number-answer-form>input{font:inherit;font-size:25px;padding:14px;width:min(240px,100%);box-sizing:border-box;text-align:center;border:2px solid #c2d7f1;border-radius:13px;min-height:52px}.number-answer-form>.primary{min-height:48px;min-width:160px}.numberline{width:100%;min-width:0;box-sizing:border-box;padding:18px 20px 14px;margin:12px 0;background:linear-gradient(145deg,#f3fcff,#f8f7ff);border:1px solid #d7e6f7;border-radius:16px}.numberline-track{position:relative;height:7px;background:linear-gradient(90deg,#19c9d5,#1477f2);border-radius:8px;margin:65px 4px 54px;box-shadow:0 3px 7px #1477f217;cursor:crosshair}.number-tick{position:absolute;top:-7px;width:0;height:22px}.number-tick>i{display:block;height:22px;width:2px;background:#277ad6}.number-tick small{position:absolute;top:29px;left:1px;transform:translateX(-50%);white-space:nowrap;font-size:12px;font-weight:700;color:#123970}.number-tick:first-child small{transform:none}.number-tick:last-of-type small{transform:translateX(-100%)}.number-marker{position:absolute;bottom:5px;transform:translateX(-50%);display:flex;flex-direction:column;align-items:center;gap:0;z-index:2}.number-marker>span{font-size:15px;font-weight:800;border-radius:8px;color:#5630c4;background:#fff;padding:3px 8px;white-space:nowrap;box-shadow:0 2px 6px #285f9020}.number-marker img{object-fit:contain;display:block}.number-slider{display:block;width:100%;min-height:44px;padding:0;margin:7px 0;accent-color:#7149e1;touch-action:pan-y}.number-slider-label{display:flex;align-items:center;justify-content:space-between;gap:14px;text-align:left;font-size:11px;font-weight:700;color:#42638a}.number-slider-label output{font-size:19px;font-weight:800;color:#382e98}.numberline>p{font-size:11px;line-height:1.6;margin:5px 0}.number-zoom{width:100%;min-width:0}.number-zoom>.secondary{display:flex;align-items:center;justify-content:center;gap:10px;margin:12px auto;min-height:44px}.number-zoom img{object-fit:contain}.number-pair-input{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;width:min(420px,100%)}.number-pair-input label{font-size:11px;text-align:left;color:#526984}.number-pair-input input{display:block;width:100%;box-sizing:border-box;margin-top:7px;font:inherit;font-size:23px;text-align:center;padding:14px 5px;min-height:52px;border:2px solid #c2d7f1;border-radius:12px}.number-compare-options{display:flex;gap:16px}.number-compare-options button{width:65px;min-height:60px;font-size:28px}.number-compare-options [aria-pressed=true]{border-color:#1477f2;background:#eaf5ff;color:#125abd}.number-order-options,.number-order-result{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;width:100%}.number-order-result{min-height:65px;align-items:center;border:1px dashed #a9c9ed;border-radius:12px;padding:12px;color:#526984;box-sizing:border-box;font-size:12px}.number-order-options button,.number-order-result button{font-size:22px;padding:12px 16px;min-height:52px}.number-build,.number-sequence{display:flex;flex-wrap:wrap;gap:9px;align-items:center;justify-content:center;max-width:100%;font-size:20px;font-weight:700}.number-build span,.number-sequence span{background:#eff8ff;border:1px solid #d3e5f7;border-radius:10px;padding:12px}.place-value-board{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;width:100%;max-width:620px;margin:20px auto}.place-column{padding:14px 7px;border-radius:13px;text-align:center;background:#eef8ff;border:1px solid #cfe5f5;color:#082b65;min-width:0}.place-column>strong{font-size:21px}.place-column>small{display:block;font-size:10px;margin-top:7px}.place-digit{display:block;font-size:32px;font-weight:800;margin:12px 0}.place-blocks{display:flex;flex-wrap:wrap;justify-content:center;gap:4px;min-height:30px}.place-block{display:block;width:15px;height:15px;background:linear-gradient(135deg,#5ae4eb,#1477f2);border:1px solid #1e85cf;box-shadow:inset -3px -3px 0 #15498b22;border-radius:3px}.place-0 .place-block{width:18px;height:18px;transform:skewY(-10deg);background:linear-gradient(135deg,#98d5ff,#6a43d2)}.place-1 .place-block{background:repeating-linear-gradient(90deg,#42cae3 0 3px,#167cb6 3px 4px)}.place-2 .place-block{width:9px;height:24px;border-radius:2px}.place-3 .place-block{width:9px;height:9px}.empty-block{border:1px dashed #8eaed4;width:20px;height:20px}.number-help-buttons{margin-top:20px}.number-help-buttons[data-unlocked="1"] [data-number-help="2"],.number-help-buttons[data-unlocked="1"] [data-number-help="3"],.number-help-buttons[data-unlocked="2"] [data-number-help="1"],.number-help-buttons[data-unlocked="2"] [data-number-help="3"],.number-help-buttons[data-unlocked="3"] [data-number-help="1"],.number-help-buttons[data-unlocked="3"] [data-number-help="2"]{display:none}.numbers-save-status{font-size:10px;color:#526984;text-align:center;margin:18px 0}.numbers-progress>div{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.numbers-progress a{display:flex;justify-content:space-between;align-items:center;gap:12px;border-bottom:1px solid #dbe6f3;font-size:12px;min-height:48px}.numbers-progress strong{font-size:11px}.neighbor-levels summary{min-height:44px;padding:12px;cursor:pointer;font-size:12px}.neighbor-levels h3{font-size:14px;margin:12px 0}.numbers-dashboard-art{position:relative;display:flex;align-items:center;gap:7px;height:52px;margin:8px 0 14px;font-size:10px;color:#17365b}.numbers-dashboard-art i{height:4px;flex:1;background:linear-gradient(90deg,#19c9d5,#1477f2);border-radius:3px}.numbers-dashboard-art img{position:absolute;left:68%;top:0;object-fit:contain}.numbers-page button:focus-visible,.numbers-trainer button:focus-visible,.number-slider:focus-visible,.number-answer-form input:focus-visible{outline:3px solid #1477f2;outline-offset:3px}
@media(max-width:1050px){.numbers-topic-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:768px){.number-explorer-intro{grid-template-columns:1fr}.numbers-heading{gap:12px}.numbers-heading img{width:70px;height:70px}.numbers-heading h1{font-size:29px}.numbers-heading p{font-size:12px}.number-tick.minor small{display:none}.numbers-progress>div{grid-template-columns:1fr}.numberline{padding:14px 16px}.number-question{font-size:25px}}
@media(max-width:520px){.numbers-topic-grid{grid-template-columns:1fr}.numbers-heading{align-items:flex-start}.numbers-heading img{width:54px;height:65px}.numbers-heading h1{font-size:25px}.place-value-board{gap:5px}.place-column{padding:12px 4px}.place-column>small{font-size:9px}.place-digit{font-size:26px}.number-equation{font-size:27px}.number-marker>span{font-size:13px}.number-tick small{font-size:11px}.number-build,.number-sequence{font-size:17px;gap:5px}.number-build span,.number-sequence span{padding:9px}.numberline-track{margin-left:3px;margin-right:3px}.number-pair-input{gap:12px}.number-order-options button,.number-order-result button{font-size:20px;padding:12px}.numbers-trainer .task{padding:20px 12px}.number-explorer-intro{padding:20px 16px}.number-question{font-size:22px}}
@media(max-width:359px){.numbers-heading img{display:none}.number-equation{font-size:24px}.place-column>small{font-size:8px}.number-build b,.number-sequence b{font-size:12px}.number-order-options{gap:7px}.number-order-options button{font-size:18px}.number-marker>span{font-size:12px}.numbers-topic-grid .panel{padding:20px}}
@media(prefers-reduced-motion:reduce){.numbers-page *,.numbers-trainer *{animation:none!important;transition:none!important}}

.number-card-link{display:block;font-size:11px;font-weight:800;color:#1267d4;margin:7px 0 14px}