:root{--paper:#f8f6ed;--white:#fffef9;--ink:#233e34;--muted:#586b61;--forest:#204d40;--green:#e1eddc;--line:#d8dfcf;--orange:#d2613d;--lavender:#ded8f6;--gold:#f3cf70;--blue:#d6e9ef;--shadow:0 9px 0 rgba(32,77,64,.045)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:ui-rounded,'Trebuchet MS',Arial,sans-serif;font-size:17px;line-height:1.5}button,a,input,select{touch-action:manipulation}button,input,select{font:inherit}button{cursor:pointer;color:inherit}button:disabled{cursor:default;opacity:.5}button,a,input,select,summary{outline-offset:4px}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid #9a450e}a{color:inherit}button{border:0}button:hover:not(:disabled){filter:brightness(.98)}button:active:not(:disabled){transform:translateY(1px)}h1,h2,h3,p{margin-top:0}h1,h2,h3{line-height:1.1;letter-spacing:-.04em}h1{font-size:clamp(40px,5vw,70px);font-weight:800}h2{font-size:32px}h3{font-size:22px}p{margin-bottom:1em}.topbar{max-width:1250px;margin:auto;padding:24px 36px;display:flex;align-items:center;gap:32px;border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:10px;text-decoration:none;font-size:24px;font-weight:800;letter-spacing:-.9px;line-height:1}.brand svg{width:43px;height:43px;fill:var(--forest);stroke:var(--forest);stroke-width:2}.brand-note{display:block;font-size:8px;letter-spacing:1.8px;margin-top:7px}nav{display:flex;gap:8px;margin-left:auto;font-size:14px;font-weight:bold}nav a{text-decoration:none;padding:12px 16px;border-radius:24px}nav a.active{background:var(--forest);color:white}.icon-button{width:42px;height:42px;border:1px solid var(--line);border-radius:50%;background:transparent;font-size:23px;font-weight:bold;flex-shrink:0}.skip{position:fixed;z-index:20;left:10px;top:-100px;background:white;padding:10px}.skip:focus{top:10px}main{max-width:1178px;margin:auto;padding:44px 36px 70px;min-height:70vh}footer{max-width:1178px;margin:auto;border-top:1px solid var(--line);padding:22px 36px;display:flex;align-items:center;gap:10px;color:var(--muted);font-size:12px}footer button{margin-left:auto;background:none;font-size:12px;text-decoration:underline;text-underline-offset:4px}.footer-flower{color:var(--orange);font-size:25px}.eyebrow{font-size:11px;letter-spacing:2px;font-weight:800;margin-bottom:16px}.subtle{font-size:14px;color:var(--muted)}.hero{position:relative;display:grid;grid-template-columns:1.15fr .85fr;gap:55px;align-items:center;padding:25px 0 55px}.hero h1{margin-bottom:24px}.hero h1 em{font-family:Georgia,serif;font-weight:500;color:var(--orange)}.hero p:not(.eyebrow){max-width:470px;font-size:18px;color:var(--muted)}.pill{border:1px solid var(--line);border-radius:25px;padding:7px 13px;display:inline-flex;gap:7px;align-items:center;font-size:12px;font-weight:bold}.hero .pills{display:flex;gap:9px;flex-wrap:wrap}.meadow-art{position:relative;min-height:330px;display:flex;align-items:center;justify-content:center}.art-circle{width:300px;height:300px;border-radius:50%;background:#e4ebd8;position:absolute}.art-tile{position:absolute;width:120px;height:135px;border:2px solid var(--ink);border-radius:22px;box-shadow:7px 8px 0 var(--ink);display:flex;align-items:center;justify-content:center;font-weight:800;font-size:56px}.art-tile.a{background:var(--gold);transform:rotate(-12deg);left:40px;top:35px}.art-tile.b{background:var(--lavender);transform:rotate(12deg);right:22px;top:70px}.art-tile.c{background:var(--white);transform:rotate(-2deg);bottom:5px;left:150px;font-size:40px}.art-star{font-size:70px;position:absolute;color:var(--orange);left:10px;bottom:5px}.art-spark{position:absolute;right:5px;top:0;font-size:40px}.section-label{display:flex;align-items:center;gap:15px;font-size:11px;letter-spacing:1.5px;font-weight:bold;margin-bottom:20px}.section-label:after{content:'';height:1px;flex:1;background:var(--line)}.game-cards{display:grid;grid-template-columns:1fr 1fr;gap:22px}.game-card{display:grid;grid-template-columns:1fr auto;gap:16px;position:relative;padding:30px;border:1px solid var(--line);border-radius:23px;background:var(--white);text-decoration:none;box-shadow:var(--shadow);transition:transform .2s}.game-card:hover{transform:translateY(-4px)}.game-card h2{margin:8px 0 12px;font-size:30px}.game-card p{font-size:15px;color:var(--muted);max-width:320px}.game-card .mini-art{width:98px;height:108px;display:grid;place-items:center;align-self:center;background:var(--lavender);border-radius:40% 50% 45% 35%;font-size:50px}.game-card:last-child .mini-art{background:var(--gold)}.game-number{font-size:11px;letter-spacing:2px;font-weight:800;color:var(--muted)}.card-link{font-size:14px;font-weight:bold;display:flex;align-items:center;gap:8px}.arrow{border-radius:50%;width:25px;height:25px;background:var(--forest);color:white;display:inline-grid;place-items:center}.kind-note{display:flex;gap:15px;padding:30px 0 0;color:var(--muted);font-size:14px}.kind-note b{color:var(--ink)}.activity-heading{display:flex;align-items:flex-start;justify-content:space-between;gap:20px;margin-bottom:28px}.activity-heading h1{font-size:44px;margin-bottom:12px}.activity-heading p:not(.eyebrow){color:var(--muted);font-size:16px;max-width:650px;margin-bottom:0}.leaf-counter{background:var(--green);border-radius:18px;padding:12px 18px;white-space:nowrap;font-size:13px;display:flex;align-items:center;gap:8px}.leaf-icon{font-size:25px}.activity-layout{display:grid;grid-template-columns:minmax(0,1.65fr) minmax(270px,1fr);gap:26px;align-items:start}.panel{border:1px solid var(--line);border-radius:22px;background:var(--white);padding:25px;box-shadow:var(--shadow)}.puzzle-top{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-bottom:18px}.puzzle-top h2{font-size:23px;margin:0}.progress-label{font-size:11px;color:var(--muted);white-space:nowrap}.four-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.number-card{background:#f1eee5;border:2px solid transparent;border-radius:18px;min-height:158px;padding:22px 16px;position:relative;display:flex;flex-direction:column;justify-content:center;align-items:center;gap:8px;font-size:clamp(24px,3vw,44px);font-weight:800;line-height:1.2;text-align:center}.number-card:nth-child(2){background:#e5e9dc}.number-card:nth-child(3){background:#e4dff1}.number-card:nth-child(4){background:#f4e7c7}.number-card.selected{border:3px solid var(--forest);box-shadow:inset 0 0 0 3px var(--white)}.number-card .tile-letter{font-size:11px;letter-spacing:1px;position:absolute;left:14px;top:12px;font-weight:bold}.number-card .found{position:absolute;right:10px;top:8px;color:var(--forest);font-size:20px}.number-card.small-text{font-size:23px}.number-card .array{display:grid;gap:3px;max-width:100%}.array i{width:9px;height:9px;background:currentColor;border-radius:2px}.number-card .array-label{font-size:15px;letter-spacing:0;font-weight:500;margin-top:6px}.puzzle-controls{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:22px}.primary,.secondary,.quiet,.chip{border-radius:12px;padding:12px 18px;font-weight:bold;font-size:14px;min-height:46px}.primary{background:var(--forest);color:white}.secondary{background:transparent;border:1px solid var(--line)}.quiet{background:transparent;text-decoration:underline;text-underline-offset:4px;padding:10px 0;color:var(--muted)}.full{width:100%}.circle-step{display:inline-grid;place-items:center;background:var(--gold);width:30px;height:30px;border-radius:50%;font-size:14px;font-weight:800;margin-bottom:15px}.thinking-panel{background:#e9eedf}.thinking-panel h2{font-size:29px;line-height:1.15}.prompt-stem{padding:16px;border:1px dashed #9aa78e;border-radius:12px;font-family:Georgia,serif;font-size:21px;line-height:1.4;background:rgba(255,255,255,.35);margin:18px 0}.thinking-panel p{font-size:15px}.thinking-panel .quiet{font-size:13px}.reason-box{background:white;border-radius:12px;padding:15px;font-size:15px;margin:15px 0}.checklist{display:grid;gap:10px;margin:18px 0}.checklist label{display:flex;gap:10px;align-items:flex-start;font-size:14px;cursor:pointer}.checklist input{width:20px;height:20px;accent-color:var(--forest);flex-shrink:0}.success{border-radius:14px;padding:17px;background:var(--green);border:1px solid #abc1a1;margin-top:18px;font-size:15px}.success strong{display:block;margin-bottom:5px}.feedback{border-radius:13px;padding:15px;background:#f8eac8;margin:15px 0;font-size:15px}.small-note{font-size:12px;color:var(--muted);margin-top:18px;margin-bottom:0}.topic-tabs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:23px}.topic-tabs button{background:transparent;border:1px solid var(--line);border-radius:25px;padding:10px 19px;font-size:14px;font-weight:bold}.topic-tabs button.active{background:var(--forest);color:white;border-color:var(--forest)}.workshop-layout{display:grid;grid-template-columns:minmax(0,2fr) minmax(250px,1fr);gap:24px;align-items:start}.mission{padding:23px;background:var(--gold);border-radius:20px;margin-bottom:20px;display:flex;justify-content:space-between;align-items:center;gap:16px}.mission .eyebrow{margin:0 0 5px;font-size:10px}.target-number{font-size:64px;font-weight:800;letter-spacing:-3px;line-height:1.1}.target-title{font-size:27px;line-height:1.2;font-weight:bold}.mission p{margin:6px 0 0;font-size:14px}.mission .badge{font-size:25px;border:1px solid var(--ink);border-radius:50%;width:48px;height:48px;display:grid;place-items:center}.range-select{display:flex;align-items:center;gap:10px;margin-bottom:18px;font-size:13px}.range-select label{font-weight:bold}select{background:var(--white);border:1px solid var(--line);border-radius:9px;min-height:42px;padding:8px 32px 8px 12px;color:var(--ink);max-width:100%}.blocks-board{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.block-column{background:#eee9f7;border-radius:14px;min-width:0;overflow:hidden}.block-column:nth-child(2){background:#e4eddc}.block-column:nth-child(3){background:#f9ebcc}.block-head{text-align:center;padding:12px 4px;border-bottom:1px solid rgba(35,62,52,.15);font-size:13px;font-weight:bold}.block-head strong{font-size:28px;display:block;line-height:1.2;margin-top:3px}.block-art{display:flex;align-content:flex-start;align-items:flex-start;justify-content:center;flex-wrap:wrap;gap:5px;padding:15px 7px;min-height:190px}.block-art .empty{color:var(--muted);font-size:12px;font-weight:normal;margin:auto}.hundred-block{width:45px;height:45px;background-color:#9584c1;background-image:linear-gradient(to right,transparent 85%,#eee9f7 85%),linear-gradient(to bottom,transparent 85%,#eee9f7 85%);background-size:4.5px 4.5px;border:1px solid #69568f;border-radius:2px}.ten-block{width:10px;height:80px;background-color:#73a879;background-image:linear-gradient(to bottom,transparent 85%,#e4eddc 85%);background-size:100% 8px;border:1px solid #4c784f;border-radius:2px}.one-block{width:15px;height:15px;background:#e0a13d;border:1px solid #9c6b25;border-radius:2px}.block-controls{display:flex;gap:6px;justify-content:center;flex-wrap:wrap;padding:0 6px 12px}.block-controls button{background:rgba(255,255,255,.8);border:1px solid rgba(35,62,52,.15);border-radius:9px;min-width:39px;min-height:43px;font-size:20px}.block-controls .add-block{font-size:12px;padding:8px;font-weight:bold;flex:1}.representation{padding:20px 0 5px;display:grid;gap:6px}.representation .total{font-size:25px;font-weight:bold}.representation .expanded{font-size:17px;letter-spacing:.1px}.representation .words{font-size:14px;color:var(--muted)}.board-actions{display:flex;gap:9px;flex-wrap:wrap;margin-top:16px}.hint-card{background:#e7eee1}.hint-card h2{font-size:26px;margin-top:3px}.hint-card p{font-size:15px}.hint-card .tip-number{font-family:Georgia,serif;font-size:42px;margin-bottom:15px;color:var(--forest)}.trade-buttons{display:grid;gap:10px;margin-top:18px}.trade-buttons button{font-size:13px}.trade-counts{font-size:15px;font-weight:bold;margin-top:15px}.comparison{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:15px;margin:15px 0}.compare-card{background:#ede8f7;border-radius:16px;padding:18px 10px;text-align:center;min-width:0}.compare-card:last-child{background:#e7eddf}.compare-value{font-size:49px;font-weight:800;letter-spacing:-2px}.compare-breakdown{font-size:12px;display:flex;justify-content:center;gap:5px;flex-wrap:wrap}.compare-breakdown span{padding:4px 7px;background:rgba(255,255,255,.5);border-radius:5px}.compare-breakdown span.highlight{outline:2px solid var(--forest);background:white}.symbol-placeholder{font-size:33px;color:var(--muted)}.symbol-options{display:flex;justify-content:center;gap:13px;margin:25px 0}.symbol-options button{width:77px;height:67px;border:1px solid var(--line);border-radius:15px;background:var(--paper);font-size:35px;font-weight:bold}.symbol-options button.chosen{background:var(--forest);color:white}.answer-form{display:flex;gap:10px;align-items:end;flex-wrap:wrap;margin-top:20px}.answer-form label{font-size:13px;font-weight:bold;display:grid;gap:7px}.answer-form input{width:130px;padding:10px 15px;border:1px solid #8e9e89;border-radius:10px;font-size:23px;color:var(--ink);background:white}.practice-steps{display:flex;gap:5px;margin-bottom:20px}.practice-step{flex:1;border-top:4px solid var(--line);padding-top:7px;font-size:10px;color:var(--muted)}.practice-step.active{border-color:var(--forest);font-weight:bold;color:var(--ink)}.practice-step.done{border-color:#92b582}.trail-visual{display:flex;align-items:center;justify-content:space-between;gap:8px;margin:30px 0}.trail-number{border:2px solid var(--forest);border-radius:50%;width:75px;height:75px;display:grid;place-items:center;font-size:30px;font-weight:bold;background:var(--white)}.trail-jump{text-align:center;flex:1;color:var(--orange);font-weight:bold;font-size:22px;border-top:2px dashed var(--orange);padding-top:7px}.trail-number.current{background:var(--gold)}.trail-equation{font-size:25px;text-align:center;font-weight:bold}.progress-dots{display:flex;gap:6px}.progress-dots span{width:7px;height:7px;border-radius:50%;background:#d8dfcf}.progress-dots .active{background:var(--forest)}dialog{border:1px solid var(--line);border-radius:25px;max-width:540px;width:calc(100% - 32px);padding:35px;background:var(--white);color:var(--ink);line-height:1.6}dialog::backdrop{background:rgba(20,42,31,.4);backdrop-filter:blur(4px)}dialog h2{font-size:35px}dialog h3{margin-top:25px;font-size:20px}dialog p{font-size:15px}dialog .close.icon-button{position:absolute;right:16px;top:14px;border:none}.sr-only{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.flower-row{font-size:27px;letter-spacing:7px;margin:15px 0;color:var(--orange)}.inline-choices{display:flex;gap:8px;flex-wrap:wrap}.inline-choices button{background:var(--paper);border:1px solid var(--line);border-radius:10px;padding:12px 19px;font-size:22px;font-weight:bold}.hint-inline{background:var(--paper);border-radius:10px;padding:13px;font-size:14px;margin-top:15px}.end-panel{text-align:center;padding:34px 16px}.end-panel h2{font-size:34px}.end-panel p{max-width:400px;margin:0 auto 20px}.end-panel .primary{margin-right:6px}.order-tray{display:grid;gap:10px;margin:22px 0}.order-row{display:flex;align-items:center;gap:12px;padding:12px 17px;background:var(--paper);border:1px solid var(--line);border-radius:12px}.order-row strong{font-size:28px;flex:1}.order-row .rank{font-size:12px;color:var(--muted)}.order-row button{min-width:44px;min-height:44px;border-radius:10px;background:white;border:1px solid var(--line);font-size:20px}
@media(min-width:1050px){.number-card{min-height:185px}.block-art{min-height:215px}.hundred-block{width:50px;height:50px;background-size:5px 5px}}
@media(max-width:850px){.topbar{padding:18px 24px;gap:15px}.brand{font-size:21px}.brand-note{font-size:7px}.topbar nav a{font-size:12px;padding:10px 12px}main{padding:35px 24px 50px}.hero{gap:10px}.art-tile.a{left:0}.art-tile.b{right:0}.art-tile.c{left:85px}.art-circle{width:260px;height:260px}.activity-layout,.workshop-layout{grid-template-columns:1.5fr 1fr;gap:18px}.panel{padding:20px}.number-card{min-height:140px}.game-card{padding:22px}.game-card .mini-art{width:65px;height:85px;font-size:38px}.game-card h2{font-size:26px}.thinking-panel h2{font-size:25px}.target-number{font-size:55px}.compare-value{font-size:41px}.compare-breakdown{font-size:10px}.comparison{gap:8px}}
@media(max-width:680px){.topbar{padding:16px 18px;flex-wrap:wrap;gap:12px}.brand{font-size:23px}.brand svg{width:35px}.brand-note{font-size:7px}.topbar nav{order:3;width:100%;margin:0;gap:8px}.topbar nav a{flex:1;text-align:center;border:1px solid var(--line);font-size:12px;padding:10px 5px}.topbar>.icon-button{margin-left:auto;width:35px;height:35px;font-size:18px}main{padding:27px 18px 40px}.hero{display:block;padding:5px 0 30px}.hero h1{font-size:48px;margin-bottom:18px}.hero p:not(.eyebrow){font-size:16px}.meadow-art{display:none}.game-cards{grid-template-columns:1fr;gap:16px}.game-card{padding:23px}.game-card .mini-art{width:80px;height:95px}.kind-note{font-size:13px;padding-top:24px}.activity-heading{display:block;margin-bottom:23px}.activity-heading h1{font-size:37px}.activity-heading p:not(.eyebrow){font-size:15px}.activity-heading .leaf-counter{display:inline-flex;margin-top:15px;padding:7px 12px;font-size:12px}.leaf-icon{font-size:19px}.activity-layout,.workshop-layout{grid-template-columns:1fr;gap:20px}.four-grid{gap:11px}.number-card{min-height:137px;font-size:36px;padding:23px 10px 15px}.number-card.small-text{font-size:21px}.panel{padding:18px}.thinking-panel h2{font-size:29px}.puzzle-top h2{font-size:21px}.puzzle-top{align-items:flex-start}.puzzle-controls{gap:7px}.puzzle-controls button{font-size:12px;padding:11px 12px}.topic-tabs{gap:7px}.topic-tabs button{padding:9px 13px;font-size:12px}.mission{padding:19px}.target-number{font-size:58px}.blocks-board{gap:7px}.block-art{min-height:175px;padding:12px 5px;gap:4px}.hundred-block{width:38px;height:38px;background-size:3.8px 3.8px}.one-block{width:13px;height:13px}.block-controls{padding:0 4px 10px;gap:4px}.block-controls .add-block{font-size:10px;padding:6px;min-width:0}.block-controls button{min-width:31px}.block-head{font-size:11px}.block-head strong{font-size:24px}.range-select{flex-wrap:wrap}.compare-value{font-size:44px}.compare-card{padding:17px 6px}.compare-breakdown{font-size:11px}.comparison{gap:10px}.compare-breakdown span{padding:3px 4px}.hint-card .tip-number{display:none}footer{padding:17px 18px;flex-wrap:wrap;gap:7px;font-size:10px}footer button{font-size:10px}dialog{padding:30px 23px}.trail-number{width:65px;height:65px;font-size:26px}.trail-jump{font-size:17px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important;animation:none!important}}

/* Shared unit scale: each cell is one unit. */
.hundred-block{width:60px;height:60px;background-size:6px 6px}.ten-block{width:6px;height:60px;background-size:100% 6px}.one-block{width:6px;height:6px}

/* Keep all array dots visible on narrow phones. */
.number-card .array{max-width:100%}.array i{width:100%;height:auto;aspect-ratio:1}
/* WODB edition */
.header-tag{margin-left:auto;font-size:11px;letter-spacing:1.5px;font-weight:800;color:var(--muted)}.activity-heading h1{font-size:clamp(32px,4.2vw,54px);max-width:750px}.activity-heading .eyebrow{margin-bottom:12px}.activity-heading .leaf-counter{margin-top:5px}.filters{display:flex;gap:15px;align-items:end;margin-bottom:24px;flex-wrap:wrap}.grade-filter{display:flex;gap:6px}.grade-filter button{border-radius:24px;padding:9px 16px;border:1px solid var(--line);background:transparent;min-height:42px;font-weight:bold;font-size:13px}.grade-filter button.active{color:white;background:var(--forest);border-color:var(--forest)}.filter-field{display:grid;gap:6px;font-size:11px;font-weight:bold;color:var(--muted);letter-spacing:.5px}.filter-field.skill{margin-left:auto}.filter-field select{font-size:13px;max-width:240px;letter-spacing:0;font-weight:normal}.filter-label{font-size:11px;color:var(--muted);font-weight:bold;display:block;margin-bottom:7px}.puzzle-top .eyebrow{font-size:9px;letter-spacing:1.4px;margin-bottom:8px}.puzzle-top h2{font-size:25px}.puzzle-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:18px;flex-wrap:wrap}.standard-tags{font-size:10px;color:var(--muted);line-height:1.6}.standard-tags a{text-decoration:underline;text-underline-offset:3px}.navigation{display:grid;grid-template-columns:auto 1fr auto;gap:10px;align-items:center;margin-top:22px}.navigation .progress-label{text-align:center}.secondary.small{font-size:12px;min-height:40px;padding:9px 13px}.jump-line{display:flex;align-items:center;gap:10px;margin-top:16px}.jump-line label{font-size:12px;white-space:nowrap}.jump-line select{min-width:0;flex:1;width:100%;font-size:12px}.shuffle-button{background:none;color:var(--muted);font-size:12px;padding:10px 0;text-decoration:underline;text-underline-offset:4px}.feedback-title{font-family:Georgia,serif;font-style:italic;font-size:35px!important;font-weight:normal;letter-spacing:-1px;margin-bottom:16px}.thinking-panel .reason-box{font-size:16px;line-height:1.55;margin-top:0}.thinking-panel .example-label{font-size:10px;letter-spacing:1.5px;font-weight:800;margin-bottom:8px}.alternate-reason{background:#fffef9a6;border:1px dashed #9aa78e;border-radius:12px;padding:15px;margin-top:14px;font-size:14px}.alternate-reason p:last-child{margin-bottom:0}.continue-button{width:100%;margin-top:12px}.selected-note{display:inline-flex;background:var(--white);border-radius:20px;padding:5px 10px;font-size:11px;font-weight:bold;margin-bottom:16px}.puzzle-panel{padding:27px}.number-card{min-height:180px}.number-card.small-text{font-size:24px}.number-card.long-text{font-size:18px;line-height:1.35}.example-subtle{font-size:12px!important;color:var(--muted)}.empty-state{padding:50px 25px;text-align:center}.collection-bar{background:var(--green);border-radius:15px;padding:13px 20px;margin-top:24px;display:flex;align-items:center;gap:15px;font-size:13px}.collection-bar strong{font-size:18px;white-space:nowrap}.collection-bar .secondary{margin-left:auto}.zero-message{font-size:13px;color:var(--muted);margin:18px 0 0}.guide-grid{display:grid;gap:12px}.guide-grade{padding:15px;border-radius:12px;background:var(--paper);font-size:13px;line-height:1.55}.guide-grade strong{display:block;font-size:15px;margin-bottom:4px}#share-url{width:100%;font-size:13px;padding:13px;border-radius:10px;border:1px solid var(--line);background:var(--paper);margin:10px 0 18px}#copy-status{font-size:13px;margin:12px 0 0}.reason-thinking{font-family:Georgia,serif;font-size:20px!important;font-style:italic}.number-card .array{max-width:100%;display:grid;gap:3px}.array i{width:100%;height:auto;aspect-ratio:1}.puzzle-panel:focus{outline:none}.section-note{font-size:12px;color:var(--muted);margin-top:18px}.no-results{padding:35px;border-radius:20px;background:var(--white);border:1px solid var(--line)}
@media(max-width:850px){.puzzle-panel{padding:20px}.number-card{min-height:155px}.number-card.small-text{font-size:21px}.number-card.long-text{font-size:17px}.filter-field.skill{margin-left:0}}
@media(max-width:680px){.header-tag{font-size:8px;letter-spacing:.5px}.topbar{flex-wrap:nowrap}.topbar>.icon-button{margin-left:0}.brand{font-size:20px}.brand-note{font-size:6px;letter-spacing:1.4px}.activity-heading h1{font-size:35px}.filters{gap:14px}.grade-filter{gap:5px;flex-wrap:wrap}.grade-filter button{padding:9px 13px;font-size:12px}.filter-field.skill{width:100%}.filter-field select{max-width:none;width:100%}.activity-layout{gap:18px}.number-card{min-height:145px;font-size:34px}.number-card.small-text{font-size:19px}.number-card.long-text{font-size:16px}.puzzle-panel{padding:17px}.puzzle-top h2{font-size:23px}.navigation{gap:7px}.navigation .secondary{padding:11px 9px;font-size:12px}.jump-line select{font-size:11px}.collection-bar{align-items:flex-start;gap:10px;font-size:12px;padding:14px;flex-wrap:wrap}.collection-bar strong{font-size:16px}.collection-bar .secondary{margin-left:0}.puzzle-meta{gap:7px}.standard-tags{font-size:9px}.section-note{font-size:11px}footer button{margin-left:0}footer{gap:12px}.feedback-title{font-size:33px!important}}
@media(max-width:360px){.brand-note{display:none}.header-tag{font-size:7px}.brand{font-size:18px}.topbar{gap:7px}.grade-filter button{padding:8px 11px}.number-card.long-text{font-size:14px}}

.fraction-strip{display:grid;width:100%;max-width:180px;height:25px;border:1px solid currentColor;border-radius:3px;overflow:hidden;margin-top:9px}.fraction-strip i{display:block;background:rgba(255,255,255,.6);border-right:1px solid currentColor}.fraction-strip i:last-child{border-right:0}.fraction-strip i.filled{background:var(--forest)}.model-note{font-size:11px;color:var(--muted);margin:13px 0 0;text-align:center}
@media(max-width:420px){.header-tag{display:none}.topbar>.icon-button{margin-left:auto}}
/* Bright meadow: bold color, curious characters, never a race. */
:root{--paper:#fff9e9;--white:#fffef8;--ink:#243d38;--muted:#53665b;--forest:#17665a;--green:#d7efac;--line:#cbd5bd;--orange:#e57941;--lavender:#d8ccff;--gold:#f6d34f;--shadow:4px 5px 0 #243d3812}
.topbar{border-bottom:2px solid #dce3c8}.brand svg{fill:#438064;stroke:#438064}.panel{border:2px solid #bdcdb5;box-shadow:var(--shadow)}.thinking-panel{background:#d9efb5;border-color:#9cba82}.number-card{border:2px solid #d9c85a;background:#fff0a1;box-shadow:0 4px 0 #c7b74430;transition:transform .15s,border-color .15s}.number-card:nth-child(2){background:#c9efdc;border-color:#9ccdb6}.number-card:nth-child(3){background:#ded1ff;border-color:#baa7e6}.number-card:nth-child(4){background:#ffd0b2;border-color:#e7ae88}.number-card.selected{border:3px solid var(--forest);box-shadow:inset 0 0 0 3px var(--white),0 4px 0 #17665a30}.number-card:hover{transform:translateY(-2px)}.grade-filter button.active{box-shadow:0 3px 0 #0f453d}.primary{box-shadow:0 3px 0 #0f453d;letter-spacing:.1px}.primary:disabled{box-shadow:none}.secondary{background:#fffef8a8}.cookie-counter{display:flex;gap:11px;align-items:center;padding:13px 17px;border:2px solid #d7b86a;border-radius:18px;background:#ffe9a6;white-space:nowrap;font-size:12px;box-shadow:3px 4px 0 #c3a96424;transform:rotate(2deg);margin-top:6px}.cookie-counter strong{font-size:24px;display:block;line-height:1.1}.cookie-icon{width:29px;height:29px;display:inline-block;vertical-align:middle;flex-shrink:0}.cookie-counter .cookie-icon{width:39px;height:39px}.found .cookie-icon{width:23px;height:23px}.monster-intro{display:flex;align-items:center;justify-content:center;gap:6px;margin:-12px -4px 8px}.monster-intro>div:last-child{flex:1;min-width:0}.monster-intro p{font-size:14px;font-weight:bold;line-height:1.4;margin:0}.monster-intro .selected-note{font-size:9px;letter-spacing:.8px;margin-bottom:9px;background:#fff6cd;white-space:nowrap}.monster-intro .feedback-title{font-size:33px!important;margin:0}.monster-stage{position:relative;flex:0 0 150px;width:150px;height:135px;overflow:visible}.crumb-monster{width:150px;height:135px;display:block;filter:drop-shadow(2px 4px 0 #50783815)}.monster-body{transform-origin:50% 85%}.monster-mouth{transform-box:fill-box;transform-origin:center}.snack-cookie{position:absolute;width:35px;height:35px;left:-5px;top:92px;opacity:0;pointer-events:none}.snack-cheer{position:absolute;right:0;top:0;background:#fffef8;border:2px solid var(--ink);border-radius:14px;padding:4px 8px;transform:rotate(8deg);font-size:9px;font-weight:900;letter-spacing:.5px;opacity:0;white-space:nowrap;pointer-events:none}.feeding .snack-cookie{animation:cookie-snack 1.25s ease-in-out forwards}.feeding .monster-body{animation:happy-crunch .55s ease-in-out .55s 1}.feeding .monster-mouth{animation:mouth-crunch .25s ease-in-out .65s 2}.feeding .snack-cheer{animation:cheer 1.5s ease-out forwards}.thinking-panel .reason-box{border:1px solid #abc58e;box-shadow:3px 3px 0 #9bbd791a}.thinking-panel .example-label{color:#385e3a}.collection-bar{background:#f7e49c;border:1px solid #d9c56f}.collection-bar strong{display:flex;align-items:center;gap:8px}.standard-tags{font-size:11px}.reason-thinking{color:#375c39}.footer-flower{color:#ac84dc}
@keyframes cookie-snack{0%{opacity:1;transform:translate(0,0) rotate(-25deg)}50%{opacity:1;transform:translate(53px,-22px) rotate(25deg)}72%{opacity:1;transform:translate(64px,-18px) rotate(40deg) scale(.5)}86%,100%{opacity:0;transform:translate(65px,-17px) scale(.05)}}
@keyframes happy-crunch{0%,100%{transform:rotate(0)}30%{transform:rotate(-5deg) scale(1.04,.97)}70%{transform:rotate(4deg)}}
@keyframes mouth-crunch{50%{transform:scaleY(.4)}}
@keyframes cheer{0%,30%{opacity:0;transform:translateY(5px) rotate(8deg)}45%,85%{opacity:1;transform:translateY(0) rotate(8deg)}100%{opacity:0;transform:translateY(-6px) rotate(8deg)}}
@media(max-width:850px) and (min-width:681px){.monster-stage{flex-basis:105px;width:105px;height:110px}.crumb-monster{width:115px;height:110px}.monster-intro .feedback-title{font-size:26px!important}.monster-intro p{font-size:12px}.monster-intro{margin-top:-5px}.monster-intro .selected-note{font-size:8px}.snack-cookie{left:-14px;top:69px}}
@media(max-width:680px){.activity-heading .cookie-counter{display:inline-flex;margin-top:17px;padding:8px 14px;gap:8px;transform:rotate(-1deg);font-size:11px}.cookie-counter strong{display:inline;font-size:18px;margin-right:3px}.cookie-counter .cookie-icon{width:29px;height:29px}.monster-intro{justify-content:flex-start;gap:14px;margin:-4px 0 10px}.monster-intro>div:last-child{flex:0 1 auto}.monster-stage{flex-basis:135px;width:135px;height:125px}.crumb-monster{width:135px;height:125px}.monster-intro .feedback-title{font-size:34px!important}.monster-intro p{font-size:14px}.standard-tags{font-size:10px}}
@media(prefers-reduced-motion:reduce){.feeding .snack-cookie{display:none}.feeding .snack-cheer{opacity:1;animation:none}.monster-body,.monster-mouth{animation:none!important}.number-card:hover{transform:none}}
.teacher-notes{max-width:100%;font-size:11px;color:var(--muted)}.teacher-notes summary{cursor:pointer;padding:8px 0;min-height:36px;text-decoration:underline;text-underline-offset:3px}.teacher-notes .standard-tags{padding:9px 12px;background:var(--paper);border:1px solid var(--line);border-radius:10px;line-height:1.7;max-width:450px}.puzzle-meta{align-items:flex-start}.thinking-panel .primary{font-size:13px}
/* Installation is optional; it never interrupts a puzzle. */
.install-bar{max-width:1178px;margin:0 auto;padding:16px 36px 0;display:flex;align-items:center;justify-content:space-between;gap:15px;font-size:12px;color:var(--muted)}.install-bar>span{display:flex;flex-wrap:wrap;gap:5px 13px;align-items:center}.install-bar button{flex-shrink:0;border:1px solid #a8b990;background:#e4f2ca;min-height:44px}#offline-badge{font-size:10px;color:#406c45}.offline-status{background:#e4f2ca;border:1px solid #a8b990;border-radius:12px;padding:14px;font-size:14px}.install-steps h3{font-size:20px;margin-top:23px;margin-bottom:8px}.install-steps p{font-size:14px}#install-native{margin-bottom:6px}[hidden]{display:none!important}@media(max-width:680px){.install-bar{padding:13px 18px 0;font-size:11px}.install-bar>span{display:block}#offline-badge{display:block;font-size:10px;margin-top:3px}}
/* A few odd little details, with plenty of quiet space for the mathematics. */
.activity-heading{position:relative}.meadow-marks{position:absolute;right:6px;top:-26px;display:flex;gap:13px;color:#9776d5;font-size:25px;pointer-events:none}.meadow-marks span:nth-child(2){color:#d48a23;transform:rotate(14deg);font-size:18px}.meadow-marks span:nth-child(3){color:#42886c;transform:rotate(-13deg)}.number-card{transition:transform .16s ease,box-shadow .16s ease}.number-card:active{transform:scale(.97)!important}.crumb-aside{font-size:11px!important;font-weight:bold;font-style:italic;color:#446344;text-align:center;margin:-3px 0 20px!important}.monster-pupils{transition:transform .2s ease}.monster-stage:hover .monster-body{animation:curious-tilt .65s ease-in-out}.cookie-crumbs{position:absolute;left:73px;top:97px;pointer-events:none}.cookie-crumbs i{position:absolute;display:block;opacity:0;width:5px;height:5px;border-radius:2px;background:#c88836;--x:-28px;--y:24px}.cookie-crumbs i:nth-child(2){--x:24px;--y:29px;background:#69452b;width:4px;height:4px}.cookie-crumbs i:nth-child(3){--x:9px;--y:42px;width:6px;height:4px}.cookie-crumbs i:nth-child(4){--x:-13px;--y:41px;background:#69452b;width:3px;height:3px}.feeding .cookie-crumbs i{animation:crumb-scatter .7s ease-out .65s}.grade-filter button,.secondary,.primary{transition:transform .15s ease,box-shadow .15s ease}.grade-filter button:hover,.secondary:hover,.primary:hover:not(:disabled){transform:translateY(-2px)}
@keyframes curious-tilt{0%,100%{transform:rotate(0)}45%{transform:rotate(-7deg)}75%{transform:rotate(3deg)}}
@keyframes crumb-scatter{0%{opacity:0;transform:translate(0,0) rotate(0)}15%{opacity:1}80%{opacity:1}100%{opacity:0;transform:translate(var(--x),var(--y)) rotate(150deg)}}
@media(max-width:680px){.meadow-marks{top:-23px;right:1px;font-size:20px}}
@media(prefers-reduced-motion:reduce){.monster-stage:hover .monster-body,.feeding .cookie-crumbs i{animation:none!important}.cookie-crumbs{display:none}.grade-filter button:hover,.secondary:hover,.primary:hover,.number-card:active{transform:none!important}.monster-pupils{transition:none}}
.fresh-box{display:flex;flex-wrap:wrap;align-items:center;gap:12px;border:2px dashed #c3b0e6;border-radius:15px;padding:16px;margin-top:19px;background:#f1eaff}.fresh-box>div{flex:1 1 180px}.fresh-box strong{font-size:14px}.fresh-box p{font-size:11px;line-height:1.5;margin:5px 0 0;color:var(--muted)}.fresh-box .primary{font-size:12px;min-height:44px;padding:11px 14px;background:#665198;box-shadow:0 3px 0 #463765}.fresh-box .quiet{font-size:12px;padding:10px}.fresh-box .fresh-status{width:100%;margin:0}.fresh-box .fresh-status:empty{display:none}.install-bar{flex-wrap:wrap}.install-bar>span{flex:1 1 180px}
/* Gentle, pauseable character movement. Never applied to the math itself. */
.crumb-monster{animation:meadow-bob 5.8s ease-in-out infinite}.monster-pupils{transform-box:fill-box;transform-origin:center;animation:meadow-blink 6.7s linear infinite}.motion-paused *,.motion-paused *::before,.motion-paused *::after{animation:none!important;transition:none!important}.motion-paused .snack-cookie{display:none}.motion-paused .feeding .snack-cheer{opacity:1}@keyframes meadow-bob{0%,100%{translate:0 0;rotate:-1deg}50%{translate:0 -4px;rotate:1deg}}@keyframes meadow-blink{0%,43%,46%,100%{scale:1 1}44.5%{scale:1 .12}}@media(prefers-reduced-motion:reduce){.crumb-monster,.monster-pupils{animation:none!important}}
.game-links{max-width:1178px;margin:auto;padding:15px 36px 0;display:flex;gap:20px;align-items:center;font-size:12px}.game-links button{margin-left:auto;min-height:44px;font-size:11px}@media(max-width:680px){.game-links{padding:12px 18px 0;gap:13px;flex-wrap:wrap;font-size:11px}}
/* Number Lab animates the body itself; avoid doubling the shared idle motion. */
.lab-page .crumb-monster{animation:none}.lab-motion-paused .crumb-monster{animation:none!important}
/* The WODB collection stays primary, with clear level and content filters. */
.grade-filter button{display:flex;flex-direction:column;align-items:center;gap:2px;padding:8px 15px}.grade-filter button small{font-size:9px;font-weight:normal;letter-spacing:0;opacity:.85}.puzzle-instruction{font-weight:bold;font-size:16px;margin:7px 0 15px}.content-search{flex:1 1 100%;display:grid;gap:5px}.content-search>label{font-size:11px;font-weight:bold;color:var(--muted);letter-spacing:.5px}.search-controls{display:flex;gap:10px;align-items:center}.search-controls input{width:min(100%,560px);min-width:0;border:1px solid #a9baa0;border-radius:11px;padding:12px 14px;background:var(--white);font-size:14px;min-height:46px}.search-controls button{font-size:12px;white-space:nowrap;min-height:44px}.content-search>span{font-size:11px;color:var(--muted)}.puzzle-count{font-size:12px;color:var(--muted);margin:-10px 0 19px}.no-results .secondary{margin:8px}
@media(max-width:680px){.grade-filter button{padding:8px 11px}.grade-filter button small{font-size:8px}.search-controls{gap:6px}.search-controls input{font-size:13px;padding:11px}.puzzle-instruction{font-size:14px}.activity-heading h1{max-width:470px}.puzzle-count{margin-top:-7px}}

/* A quieter WODB play view: only the choices, thinking and next step stay open. */
.simplified-filters{align-items:end;justify-content:space-between;gap:18px;margin-bottom:16px}.simplified-filters .grade-filter button{min-height:44px;padding:10px 16px}.simplified-filters .content-search{flex:0 1 280px;display:block}.simplified-filters .search-controls input{width:100%;min-height:44px;background:#fffef899}.simplified-filters .filter-label{text-transform:none;letter-spacing:0;font-size:12px}.browse-options{margin:-8px 0 20px;color:var(--muted);font-size:12px}.browse-options>summary{cursor:pointer;width:fit-content;min-height:40px;padding:10px 0;text-decoration:underline;text-underline-offset:3px}.browse-options>summary:focus-visible{outline:3px solid var(--forest);outline-offset:3px}.browse-inner{padding:15px;border:1px solid var(--line);border-radius:12px;background:#fffef8;max-width:650px}.browse-filter-row,.browse-actions{display:flex;align-items:end;gap:10px;flex-wrap:wrap}.browse-filter-row .skill{margin-left:0;flex:1;min-width:150px}.browse-actions{margin:14px 0}.browse-options .jump-line{margin-top:12px}.browse-options .small-note{margin:9px 0 0}.simple-next{display:flex;justify-content:space-between;margin-top:20px}.simple-next .primary{min-width:120px;min-height:48px}.simple-next .progress-label{text-align:left;font-size:11px}.activity-heading{margin-bottom:25px}.activity-heading .cookie-counter{padding:8px 12px;transform:none;font-size:11px;box-shadow:none}.activity-heading .cookie-counter strong{font-size:19px}.activity-heading .cookie-counter .cookie-icon{width:28px;height:28px}.thinking-panel .monster-intro{display:flex;flex-direction:column;gap:0;margin:-9px 0 13px;align-items:center;text-align:center}.thinking-panel .monster-intro>div:last-child{flex:none}.monster-pair{display:flex;align-items:center;justify-content:center;gap:10px;width:100%;max-width:230px}.monster-pair .monster-stage{flex:0 0 104px;width:104px;height:94px}.monster-pair .monster-svg,.monster-pair .crumb-monster{width:104px;height:94px}.monster-pair .snack-cookie{width:25px;height:25px;top:58px;left:-9px}.monster-pair .cookie-crumbs{left:51px;top:67px}.monster-pair .snack-cheer{font-size:8px;padding:3px 5px;right:-3px;top:-3px}.thinking-panel .monster-intro .selected-note{margin:2px 0 5px;font-size:9px}.thinking-panel .monster-intro p{font-size:12px;font-weight:normal}.thinking-panel .monster-intro .feedback-title{font-size:29px!important;margin-top:1px}.thinking-panel h2{font-size:29px}.thinking-panel .prompt-stem{margin:15px 0}.thinking-panel .continue-button{min-height:40px;font-size:12px}.thinking-panel .small-note{font-size:11px}.puzzle-count{margin:0 0 4px;font-size:11px}.section-note{font-size:10px;max-width:900px}.activity-heading .eyebrow{font-size:9px;letter-spacing:1.2px}
@media(max-width:680px){.simplified-filters{gap:12px;margin-bottom:12px}.simplified-filters>div:first-child{width:100%}.simplified-filters .grade-filter{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:5px}.simplified-filters .grade-filter button{min-height:43px;padding:9px 4px;font-size:11px}.simplified-filters .content-search{flex:1 1 100%}.simplified-filters .search-controls input{font-size:13px;min-height:42px}.activity-heading .cookie-counter{position:static;display:inline-flex;margin-top:10px;padding:5px 9px}.activity-heading .cookie-counter strong{display:inline;font-size:15px}.activity-heading .cookie-counter .cookie-icon{width:23px;height:23px}.activity-heading{margin-bottom:18px}.browse-options{margin-bottom:13px}.browse-options>summary{min-height:36px;padding:8px 0}.browse-inner{padding:12px}.browse-filter-row .skill{width:auto}.simple-next .primary{min-width:108px}.thinking-panel .monster-intro{flex-direction:column;gap:0;margin-top:-8px}.monster-pair{max-width:225px;gap:12px}.monster-pair .monster-stage{flex-basis:100px;width:100px;height:90px}.monster-pair .monster-svg,.monster-pair .crumb-monster{width:100px;height:90px}}
/* Quiet styling does not reduce touch target size. */
.browse-options>summary{min-height:44px;padding:12px 0}.thinking-panel .continue-button{min-height:44px}
@media(max-width:680px){.simplified-filters .grade-filter button{min-height:44px;font-size:12px}.simplified-filters .search-controls input{min-height:44px}.browse-options>summary{min-height:44px;padding:12px 0}}

/* A possible reason comes from the named thinking partner, never from a grader. */
.monster-conversation .monster-intro{margin-bottom:0}
.monster-speech{position:relative;margin:14px 0 16px;padding:18px 20px;background:#fff;border:2px solid #8bbdb2;border-radius:22px;text-align:left}
.monster-speech::before{content:"";position:absolute;width:18px;height:18px;top:-11px;left:calc(50% - 65px);transform:rotate(45deg);background:#fff;border-top:2px solid #8bbdb2;border-left:2px solid #8bbdb2}
.monster-speech .selected-note{display:block;margin-bottom:6px;color:#41665b;font-size:11px;font-weight:800;letter-spacing:.08em}
.thinking-panel .monster-speech .feedback-title{font-size:28px;margin:0 0 11px}
.monster-speech .example-label{margin:0 0 8px;color:#284a3f}
.monster-speech .reason-box{margin:0;padding:0;border:0;border-radius:0;background:transparent;box-shadow:none;color:#203b31}
.thinking-panel .feed-cookie{display:flex;align-items:center;justify-content:center;gap:10px;min-height:56px;padding:12px 15px;line-height:1.45;text-align:left;white-space:normal}
.feed-cookie .cookie-icon{flex:0 0 34px;width:34px;height:34px}
.feed-cookie span{flex:0 1 auto}
.thinking-panel .feed-cookie:disabled{opacity:.72}
.thinking-panel .example-subtle{margin:13px 0;font-size:14px;line-height:1.6}
.thinking-panel [data-action="alternate"]{min-height:44px;margin-top:8px}
@media(max-width:680px){.monster-speech{padding:16px 18px}.thinking-panel .feed-cookie{min-height:56px;font-size:14px}}

/* Prototype-like hierarchy: one header, one puzzle, optional extras below. */
.topbar{border-bottom-width:1px}.panel{border-width:1px;box-shadow:0 7px 0 #243d3809}.thinking-panel{background:#e3efce}.topbar nav a{min-height:44px;display:flex;align-items:center;justify-content:center}.app-options{flex:1 0 100%;font-size:12px}.app-options>summary{cursor:pointer;min-height:44px;padding:12px 0;width:fit-content;text-decoration:underline;text-underline-offset:3px}.app-options-inner{display:flex;align-items:center;flex-wrap:wrap;gap:12px;padding:5px 0 14px}.app-options-inner button{margin:0;min-height:44px;text-decoration:none}.app-options-inner a{min-height:44px;display:inline-flex;align-items:center}.app-options-inner #offline-badge{font-size:11px;color:var(--muted)}
/* Problems first: the resting view keeps all four tiles above the fold. */
.topbar{padding-top:16px;padding-bottom:16px}
body:not(.lab-page) main{padding-top:22px}
.activity-heading{margin-bottom:16px}.activity-heading h1{font-size:38px;margin-bottom:0}.activity-heading .eyebrow{margin-bottom:7px}
.simplified-filters{margin-bottom:8px}.puzzle-count{display:inline-block;margin:0 18px 0 0;line-height:44px}
.browse-options{display:inline-block;vertical-align:top;margin:0 0 12px}.browse-options[open]{display:block}
.puzzle-panel .puzzle-top{margin-bottom:10px}.puzzle-panel .eyebrow{margin-bottom:7px}.puzzle-panel .puzzle-instruction{font-size:14px;margin-bottom:14px}.puzzle-panel .number-card{min-height:145px}
footer #guide-open{font-size:19px;text-decoration:none;margin-left:0;width:44px;height:44px}
@media(max-width:680px){.topbar{padding:12px 16px;gap:8px;flex-wrap:nowrap}.brand{font-size:19px;gap:6px}.brand svg{width:29px;height:30px}.topbar nav{order:initial;width:auto;margin-left:auto;gap:5px}.topbar nav a{flex:none;min-height:40px;padding:8px 9px;font-size:11px;border:0;border-radius:16px}body:not(.lab-page) main{padding-top:16px}.activity-heading{margin-bottom:13px}.activity-heading h1{font-size:28px}.activity-heading .eyebrow{font-size:8px;margin-bottom:5px}.activity-heading .cookie-counter{display:none}.simplified-filters{gap:8px;margin-bottom:4px}.simplified-filters .filter-label{font-size:11px}.puzzle-count{font-size:10px;margin-right:13px;line-height:38px}.browse-options{font-size:11px;margin-bottom:8px}.browse-options>summary{min-height:38px;padding:9px 0}.puzzle-panel{padding:15px}.puzzle-panel .puzzle-top{margin-bottom:8px}.puzzle-panel .eyebrow{font-size:8px;letter-spacing:1px;margin-bottom:5px}.puzzle-panel .puzzle-top h2{font-size:20px}.puzzle-panel .puzzle-instruction{font-size:12px;margin-bottom:11px}.puzzle-panel .four-grid{gap:9px}.puzzle-panel .number-card{min-height:100px;padding:24px 8px 12px;font-size:30px}.puzzle-panel .number-card.small-text{font-size:20px}.puzzle-panel .number-card.long-text{font-size:16px}.puzzle-panel .simple-next{margin-top:14px}}

/* The requested app motto is a quiet header line, not a hero. */
.brand .app-tagline{display:block;font-size:10px;line-height:1.4;letter-spacing:0;font-weight:500;margin-top:5px;color:var(--muted)}
@media(max-width:680px){.topbar{padding-bottom:28px}.brand{position:relative}.brand .app-tagline{position:absolute;top:31px;left:0;font-size:8.5px;line-height:1.3;margin:0;white-space:nowrap}.topbar .brand>span{white-space:nowrap}}