body[data-world-mode]{background:#edf8f7;color:#193e51}body[data-world-mode="hub"]>.shell,body[data-world-mode="lesson"]>.shell{display:none!important}body[data-world-mode="legacy"] #world-platform .w-main{display:none}body[data-world-mode="legacy"] #world-platform{display:contents}body[data-world-mode="legacy"]>.shell{padding-top:90px}body[data-world-mode] #world-platform{font-family:Arial,sans-serif;font-size:19px;line-height:1.55;color:#193e51}
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button{border:0;background:#e2f2f2;border-radius:20px;padding:0;display:block;overflow:hidden;width:100%;position:relative}#world-platform .w-photo img{width:100%;height:300px;object-fit:contain;display:block;transition:transform .25s}#world-platform .w-photo button:hover img{transform:scale(1.03)}#world-platform .w-photo figcaption{font-size:14px;color:#4f6e7c;margin-top:9px}#world-platform .w-photo .w-photo-label{position:absolute;bottom:12px;right:12px;border-radius:12px;background:#fffef2ed;color:#193e51;padding:7px 12px;font-size:14px;font-weight:700}#world-platform .w-foot{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-top:23px;background:#edf8f7;padding:14px 0;position:sticky;bottom:0;z-index:8}#world-platform .w-foot-center{font-size:14px;color:#52717e;max-width:360px;text-align:center}#world-platform .w-options{display:grid;gap:12px;max-width:850px}#world-platform .w-option{border:2px solid 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.w-illustration svg{display:block;width:100%;max-height:350px;border-radius:22px;background:#eff8fa}#world-platform .w-notebook{max-width:900px;margin:auto}#world-platform .w-note-answer{padding:20px 0 26px;border-bottom:1px solid #d9e6e9;break-inside:avoid}#world-platform .w-note-answer h3{font-size:20px;margin-bottom:17px}#world-platform .w-writing{font-size:23px;line-height:1.8;border-left:3px solid #e2a1a4;padding:5px 0 5px 20px;background:repeating-linear-gradient(transparent 0,transparent 40px,#e3edf3 40px,#e3edf3 41px)}#world-platform .w-practice{background:#edf7fc;padding:18px;border-radius:17px;font-size:20px}#world-platform .w-dialog{max-width:min(1050px,95vw);width:100%;max-height:92vh;border:2px solid #bed8e2;border-radius:24px;padding:25px;color:#193e51;background:#fff;overflow:auto}#world-platform .w-dialog::backdrop{background:#153748aa}#world-platform .w-dialog-head{display:flex;gap:20px;justify-content:space-between;align-items:start;margin-bottom:18px}#world-platform .w-dialog img{width:100%;max-height:60vh;object-fit:contain;border-radius:17px;background:#edf6f7}#world-platform .w-credit{font-size:13px;color:#56717c;margin-top:16px}#world-platform .w-credit summary{cursor:pointer}#world-platform .w-map-frame{position:relative;border:2px solid #b7dae2;border-radius:21px;overflow:hidden;background:#bde5f5}#world-platform .w-map-frame svg{display:block;width:100%;height:auto;min-height:240px}#world-platform .w-map-frame .w-map-point{cursor:pointer;outline:none}#world-platform .w-map-point circle{fill:#137b87;stroke:white;stroke-width:3;transition:fill .15s,r .15s}#world-platform .w-map-point:hover circle,#world-platform .w-map-point:focus-visible circle,#world-platform .w-map-point.active circle{fill:#e5863d}#world-platform .w-map-point text{font:700 14px Arial;fill:white;text-anchor:middle;pointer-events:none}#world-platform .w-map-label{font:700 15px Arial;fill:#18445b;paint-order:stroke;stroke:#fff;stroke-width:4px;stroke-linejoin:round}#world-platform .w-map-caption{font-size:15px;color:#4e7585;margin-top:10px}#world-platform .w-map-detail{display:grid;grid-template-columns:1.5fr 1fr;gap:22px;margin-top:20px;background:#eff8fa;border:1px solid #cee4ea;border-radius:20px;padding:22px}#world-platform .w-map-detail p{margin-top:10px}#world-platform .w-map-detail .w-photo img{height:200px}#world-platform .w-map-detail h3{font-size:25px}#world-platform .w-diagram-controls{display:flex;gap:12px;flex-wrap:wrap;align-items:center;margin:20px 0}#world-platform .w-diagram-controls input[type="range"]{width:min(430px,100%);accent-color:#167c83;height:40px}#world-platform .w-svg-button{cursor:pointer;outline:none}#world-platform .w-svg-button:hover,#world-platform .w-svg-button:focus-visible{filter:drop-shadow(0 0 6px #ffa831)}#world-platform .w-zone-strip{display:grid;grid-template-columns:repeat(6,1fr);border-radius:18px;overflow:hidden;margin-top:15px}#world-platform .w-zone-strip button{border:2px solid transparent;min-height:120px;padding:15px 5px;color:#193e51;font-size:16px;font-weight:700}#world-platform .w-zone-strip button[aria-pressed="true"]{border:4px solid #d88022}#world-platform .w-route-list{display:grid;gap:7px}#world-platform .w-route-list button{text-align:left;justify-content:start}#world-platform .w-recap-stack{display:grid;gap:24px}#world-platform .w-recap-stack article{border-bottom:1px solid #d3e6ea;padding-bottom:20px}#world-platform .w-recap-stack article p{margin-top:12px}#world-platform .w-recap-stack .w-photo img{max-height:200px}#world-platform .w-saved{font-size:13px;color:#5d7780;margin-top:20px}
@media(min-width:1150px){#world-platform .w-lane:first-child .w-cards{grid-template-columns:1fr 1fr}#world-platform .w-board{grid-template-columns:2fr 1fr 1fr}}
@media(max-width:950px){#world-platform .w-board{grid-template-columns:1fr 1fr}#world-platform .w-lane:first-child{grid-column:1/-1}#world-platform .w-lane:first-child .w-cards{grid-template-columns:repeat(2,1fr)}#world-platform .w-story{gap:20px}#world-platform .w-story-text{font-size:21px}}
@media(max-width:650px){#world-platform .w-main{padding:18px 12px 35px}#world-platform .w-top{height:66px;padding:10px 12px;gap:9px}#world-platform .w-brand{font-size:16px}#world-platform .w-top small{display:none}#world-platform .w-top .w-btn{font-size:14px;padding:8px 10px}#world-platform .w-hero,#world-platform .w-welcome{grid-template-columns:1fr;padding:24px 20px;gap:20px;border-radius:23px}#world-platform .w-hero-art svg{max-height:160px}#world-platform .w-welcome-photo{min-height:0;height:210px}#world-platform .w-hero p:not(.w-kicker),#world-platform .w-welcome p{font-size:18px}#world-platform .w-route-intro{grid-template-columns:1fr;gap:9px}#world-platform .w-route-intro div{padding:15px}#world-platform .w-route-intro b{margin:0 0 3px}#world-platform .w-board{grid-template-columns:1fr}#world-platform .w-lane:first-child .w-cards{grid-template-columns:1fr}#world-platform .w-lane{min-height:100px}#world-platform .w-filters .w-btn{font-size:14px;padding:9px 11px}#world-platform .w-stage{padding:21px 16px;border-radius:21px;min-height:400px}#world-platform .w-story,#world-platform .w-map-detail{grid-template-columns:1fr}#world-platform .w-story-text{font-size:20px}#world-platform .w-stage-head>p{font-size:19px}#world-platform .w-photo img{height:220px}#world-platform .w-foot{gap:8px}#world-platform .w-foot .w-btn{font-size:16px;padding:12px 15px}#world-platform .w-foot-center{display:none}#world-platform .w-option{font-size:18px;padding:14px;gap:10px}#world-platform .w-sort-result{grid-template-columns:1fr}#world-platform .w-course-top{font-size:12px;gap:8px}#world-platform .w-dialog{padding:18px 14px}#world-platform .w-dialog h2{font-size:24px}#world-platform .w-zone-strip{grid-template-columns:repeat(3,1fr)}#world-platform .w-zone-strip button{min-height:86px}#world-platform .w-illustration svg{min-height:180px}#world-platform .w-map-frame{overflow:auto}#world-platform .w-map-frame svg{min-width:650px}#world-platform .w-map-frame .w-map-svg{min-height:350px}#world-platform .w-map-detail{padding:16px}#world-platform .w-memory{font-size:18px;padding:16px}#world-platform .w-pills .w-btn{font-size:14px;padding:8px 10px}#world-platform .w-writing{font-size:20px;padding-left:13px}#world-platform .w-btn{max-width:100%}#world-platform .w-item{font-size:21px}#world-platform .w-sequence-result span{max-width:100%}}
#world-platform .w-map-point:hover circle,#world-platform .w-map-point:focus-visible circle,#world-platform .w-map-point.active circle{}#world-platform .w-geo{cursor:pointer;outline:none}#world-platform .w-geo:hover,#world-platform .w-geo:focus-visible{stroke:#ef9239;filter:drop-shadow(0 0 2px #fff)}
@media(max-width:650px){#world-platform .w-map-frame svg{min-width:0;min-height:0}#world-platform .w-map-overview svg{min-width:0}#world-platform .w-map-frame .w-map-svg{min-height:0}}
#world-platform .w-layout{display:grid;grid-template-columns:245px minmax(0,1fr);max-width:1600px;margin:auto}#world-platform .w-sidebar{position:sticky;top:88px;align-self:start;max-height:calc(100vh - 100px);overflow:auto;padding:18px 12px 30px 20px;font-size:15px}#world-platform .w-sidebar-summary{background:#fff;border:1px solid #cde3e2;border-radius:17px;padding:17px;margin-bottom:18px}#world-platform .w-sidebar-summary>b{font-size:19px;display:block}#world-platform .w-sidebar-summary>span{display:block;margin-top:5px}#world-platform .w-sidebar-summary small{font-size:12px;color:#527482}#world-platform .w-sidebar-section{margin-bottom:15px}#world-platform .w-sidebar-section summary{cursor:pointer;font-weight:800;padding:10px 0;font-size:14px}#world-platform .w-sidebar-section nav{display:grid;gap:5px}#world-platform .w-sidebar-link{display:flex;gap:10px;align-items:start;border:1px solid transparent;background:transparent;padding:10px 9px;border-radius:13px;text-align:left;color:#254d60;font-size:15px;line-height:1.35;width:100%}#world-platform .w-sidebar-link:hover{background:#fff}#world-platform .w-sidebar-link[aria-current="page"]{background:#fff0c6;border-color:#e9c67c}#world-platform .w-sidebar-link>span:first-child{flex:none;font-size:19px}#world-platform .w-sidebar-link small{display:block;color:#69838b;font-size:11px;margin-top:3px}#world-platform .w-main{min-width:0;width:100%}#world-platform #w-menu{display:none}#world-platform .w-top{padding-left:24px;padding-right:24px}#world-platform .w-top .w-brand{margin-right:auto}#world-platform .w-stage-head>.w-kicker{font-size:13px;letter-spacing:1.2px}#world-platform .w-stage-head>.w-stop-count{font-size:14px;color:#53717e;margin-top:10px}#world-platform .w-map-compact{padding:12px 18px;display:flex;align-items:center;gap:18px;margin-top:15px}#world-platform .w-map-compact>div{flex:1;font-size:17px}#world-platform .w-map-compact p{margin:0}#world-platform .w-map-compact .w-photo{width:190px;flex:none}#world-platform .w-map-compact .w-photo img{height:105px;object-fit:cover}#world-platform .w-map-compact .w-photo-label{font-size:12px;right:4px;bottom:5px;padding:4px 6px}#world-platform .w-map-frame>svg{max-height:400px}#world-platform .w-map-inset{position:absolute;right:9px;top:9px;width:150px;background:#fffcf0;border:2px solid #e6c376;border-radius:12px;overflow:hidden;pointer-events:none}#world-platform .w-map-inset .w-map-caption{font-size:11px;text-align:center;margin:2px 0}#world-platform .w-map-inset svg{min-height:0;max-height:90px}#world-platform .w-stage{min-height:370px}#world-platform .w-hero{padding:28px;gap:20px}#world-platform .w-hero h1{font-size:clamp(30px,3.3vw,45px)}#world-platform .w-hero-art svg{max-height:230px}
body[data-world-mode="legacy"] #world-platform .w-layout{display:none}body[data-world-mode="legacy"] #world-platform #w-menu{display:inline-flex}
@media(max-width:1200px){#world-platform .w-board{grid-template-columns:1fr 1fr}#world-platform .w-lane:first-child{grid-column:1/-1}#world-platform .w-lane:first-child .w-cards{grid-template-columns:1fr 1fr}#world-platform .w-layout{grid-template-columns:215px minmax(0,1fr)}#world-platform .w-story{grid-template-columns:1fr 1fr}#world-platform .w-main{padding-left:16px;padding-right:18px}}
@media(max-width:850px){#world-platform .w-layout{display:block}#world-platform .w-sidebar{display:none}#world-platform #w-menu{display:inline-flex}#world-platform #w-home{display:none}#world-platform .w-top{padding:10px 12px}#world-platform .w-top small{display:none}}
@media(max-width:650px){#world-platform .w-story{grid-template-columns:1fr;gap:16px}#world-platform .w-main{padding:15px 12px 25px}#world-platform .w-stage{padding:20px 16px}#world-platform .w-stage-head{margin-bottom:17px}#world-platform .w-stage h2{font-size:26px}#world-platform .w-story-text{font-size:19px;line-height:1.55}#world-platform .w-map-frame>svg{max-height:280px}#world-platform .w-map-compact{padding:10px;gap:12px}#world-platform .w-map-compact>div{font-size:15px;line-height:1.4}#world-platform .w-map-compact .w-photo{width:120px}#world-platform .w-map-compact .w-photo img{height:90px}#world-platform .w-map-compact .w-photo-label{font-size:10px;bottom:4px;right:3px}#world-platform .w-map-inset{width:105px;right:5px;top:5px;border-width:1px}#world-platform .w-map-inset .w-map-caption{font-size:9px}#world-platform .w-map-inset svg{max-height:60px}#world-platform .w-photo img{height:190px}#world-platform .w-foot{margin-top:16px}#world-platform .w-lane:first-child .w-cards{grid-template-columns:1fr}#world-platform .w-board{grid-template-columns:1fr}#world-platform .w-kicker{font-size:12px}#world-platform .w-memory{font-size:17px;margin-top:16px;padding:14px}}
@media print{#world-platform .w-sidebar{display:none!important}#world-platform .w-layout{display:block}#world-platform #w-menu{display:none!important}}
#world-platform .w-outcomes{margin-top:20px}#world-platform .w-outcomes h2{font-size:18px;margin-bottom:10px;letter-spacing:0}#world-platform .w-outcomes p{font-size:17px;margin:9px 0;display:flex;gap:10px;align-items:start;line-height:1.4}#world-platform .w-outcomes p b{flex:none;font-size:14px;width:25px;height:25px;display:grid;place-items:center;background:#fff0be;border-radius:8px}#world-platform .w-lesson-plan{text-align:center;font-size:15px;color:#567883;margin-top:23px}#world-platform .w-welcome-photo{object-fit:contain;background:#edf7f8}#world-platform .w-photo.portrait .w-photo-label{position:static;display:block;background:#e7f4f7;color:#20485e;border-radius:0;font-size:13px;padding:7px}#world-platform .w-photo.portrait img{object-fit:contain}#world-platform .w-resume{display:flex;justify-content:space-between;align-items:center;gap:20px;border:2px solid #a8cfbd;background:#fffef2;border-radius:20px;padding:18px 23px;margin-bottom:22px}#world-platform .w-resume small{display:block;color:#537b70;font-size:14px}#world-platform .w-resume strong{display:block;font-size:21px;margin-top:4px}#world-platform .w-breadcrumb{display:flex;gap:10px;flex-wrap:wrap;align-items:center}#world-platform .w-breadcrumb button{font:inherit;background:none;border:0;padding:0;color:#21667a;text-align:left;text-decoration:underline;text-underline-offset:3px}#world-platform .w-breadcrumb>span{color:#64828d;font-size:13px}#world-platform .w-note-intro{font-size:18px;line-height:1.5;margin-bottom:20px}#world-platform .w-natural-map{margin-top:18px;border:2px solid #bbd9de;border-radius:20px;overflow:hidden;background:#e1f3fb}#world-platform .w-natural-map svg{width:100%;max-height:420px;display:block}#world-platform .natural-zone{cursor:pointer;transition:opacity .15s;outline:none}#world-platform .natural-zone:hover,#world-platform .natural-zone:focus-visible{opacity:1!important;filter:drop-shadow(0 0 3px #97592e)}#world-platform .natural-zone.is-current{filter:drop-shadow(0 0 2px #8a5d2a)}#world-platform .w-zone-summary{display:flex;gap:13px;align-items:center;flex-wrap:wrap;margin-top:18px;font-size:19px}#world-platform .w-zone-color{width:26px;height:26px;border:1px solid #839797;border-radius:8px;flex:none}#world-platform .w-river-flow{stroke-dasharray:8 5;animation:w-flow 1.5s linear infinite;pointer-events:none}@keyframes w-flow{to{stroke-dashoffset:-26}}
@media(max-width:650px){#world-platform .w-welcome p{font-size:18px}#world-platform .w-welcome .w-outcomes p{font-size:16px;margin:9px 0}#world-platform .w-outcomes{margin-top:17px}#world-platform .w-welcome-photo{height:180px}#world-platform .w-lesson-plan{font-size:12px;line-height:1.8}#world-platform .w-resume{padding:15px;flex-wrap:wrap;gap:12px}#world-platform .w-resume strong{font-size:19px}#world-platform .w-lane.has-lessons{order:-1}#world-platform .w-foot .w-btn{font-size:15px;padding:11px 12px}#world-platform .w-natural-map svg{max-height:270px}#world-platform .w-zone-summary{font-size:17px}#world-platform .w-note-intro{font-size:16px}#world-platform .w-course-top{align-items:start}#world-platform .w-breadcrumb{gap:4px;display:block}#world-platform .w-breadcrumb>span{display:block;font-size:11px;margin-top:5px}}
@media print{#world-platform .w-note-answer[hidden]{display:block!important}#world-platform .w-note-intro,#world-platform .w-notebook>.w-kicker{display:none!important}}
#world-platform .w-map-inset{position:static;flex:none;width:145px;max-width:100%;pointer-events:none}#world-platform .w-map-compact{flex-wrap:wrap}#world-platform .w-map-compact>div:not(.w-map-inset){min-width:120px}#world-platform .w-map-inset svg{width:100%;max-height:90px}#world-platform .w-map-compact .w-map-inset{flex:0 0 145px}#world-platform .w-map-inset .w-map-caption{font-size:11px}
@media(max-width:650px){#world-platform .w-map-compact .w-map-inset{flex:0 0 105px;width:105px}#world-platform .w-map-inset svg{max-height:65px}#world-platform .w-map-inset .w-map-caption{font-size:9px}#world-platform .w-map-compact .w-photo{width:100%;flex-basis:100%}#world-platform .w-map-compact .w-photo img{display:none}#world-platform .w-map-compact .w-photo-label{position:static;display:block;padding:10px;font-size:14px}#world-platform .w-map-compact>div:not(.w-map-inset){min-width:110px}#world-platform .w-map-compact{gap:10px}}
@media(prefers-reduced-motion:reduce){#world-platform *{transition:none!important;scroll-behavior:auto!important}#world-platform .w-river-flow{animation:none!important}}
@media print{body[data-world-mode="lesson"]>.shell,body[data-world-mode="hub"]>.shell{display:none!important}body[data-world-mode="lesson"] #world-platform .w-top,body[data-world-mode="lesson"] #world-platform .w-course-top,body[data-world-mode="lesson"] #world-platform .w-foot,body[data-world-mode="lesson"] #world-platform .w-progress,body[data-world-mode="lesson"] #world-platform .w-actions,body[data-world-mode="lesson"] #world-platform .w-saved,body[data-world-mode="lesson"] #world-platform .w-parent{display:none!important}body[data-world-mode="lesson"] #world-platform .w-main{padding:0;max-width:none}body[data-world-mode="lesson"] #world-platform .w-stage{padding:0;border:0;box-shadow:none}body[data-world-mode="lesson"] #world-platform .w-stage:not(.w-print-ready){display:none!important}#world-platform .w-writing{font-size:13pt;line-height:1.7;background:none;border:0;padding:0}#world-platform .w-note-answer h3{font-size:12pt}#world-platform .w-note-answer{padding:12px 0}#world-platform .w-notebook h2{font-size:20pt}#world-platform dialog,#world-platform .w-top{display:none!important}body[data-world-mode="hub"] #world-platform{display:none!important}}
@media print{
 @page{size:A4;margin:14mm}
 html,body,body[data-world-mode="lesson"],#world-platform,#world-platform .w-layout,#world-platform .w-main,#world-platform .w-stage,#world-platform .w-notebook{background:#fff!important;background-image:none!important;color:#17212b!important}
 body[data-world-mode="lesson"]{margin:0!important;padding:0!important}
 #world-platform .w-print-ready{min-height:0;border-radius:0!important}
 #world-platform .w-print-ready .w-stage-head{margin:0 0 6mm;break-after:avoid}
 #world-platform .w-print-ready .w-stage-head .w-kicker{display:none!important}
 #world-platform .w-print-ready .w-stage-head h2{font-size:18pt;line-height:1.2;letter-spacing:0;color:#17212b}
 #world-platform .w-notebook{max-width:none;margin:0}
 #world-platform .w-note-answer{padding:4mm 0;break-inside:avoid;page-break-inside:avoid;border-bottom:1px solid #d5d5d5}
 #world-platform .w-note-answer h3{font-size:11.5pt;line-height:1.35;margin:0 0 2mm;color:#17212b;break-after:avoid}
 #world-platform .w-note-answer p,#world-platform .w-writing,#world-platform .w-practice{font-size:11.5pt;line-height:1.45;margin:0;padding:0;border:0;border-radius:0;background:#fff!important;color:#17212b;orphans:3;widows:3}
}

.w-lesson-next{margin-top:26px;padding:22px;border:2px solid #79bcb6;border-radius:20px;background:#effaf5}.w-lesson-next h3{margin-top:0}.w-lesson-next p{margin:12px 0 20px}
/* Compact textbook identity on the hub; the lessons still use the family's 2019 edition. */
#world-platform .w-textbook-intro{display:grid;grid-template-columns:82px minmax(210px,.9fr) minmax(0,1fr);gap:18px;align-items:center;padding:18px 20px;margin:18px 0;border:1px solid #c8dedb;border-radius:20px;background:#fffef7;min-width:0}
#world-platform .w-textbook-cover{display:block;width:82px;height:auto;max-width:100%;object-fit:contain;border-radius:3px;box-shadow:0 2px 7px #183e5124}
#world-platform .w-textbook-heading,#world-platform .w-textbook-purpose{min-width:0;overflow-wrap:anywhere}
#world-platform .w-textbook-intro .w-textbook-label{font-size:12px;line-height:1.35;color:#56727b;margin:0 0 5px}
#world-platform .w-textbook-intro h2{font-size:24px;line-height:1.2;letter-spacing:-.4px;margin:0 0 7px}
#world-platform .w-textbook-intro .w-textbook-level{font-size:15px;line-height:1.4;color:#1b6163;font-weight:700;margin:0 0 5px}
#world-platform .w-textbook-intro .w-textbook-authors{font-size:14px;line-height:1.4;color:#385e6e;margin:0}
#world-platform .w-textbook-purpose>p{font-size:15px;line-height:1.5;margin:0}
#world-platform .w-textbook-source{display:inline-block;font-size:12px;line-height:1.45;margin-top:8px;color:#426b78;text-underline-offset:3px}
@media(max-width:1100px){#world-platform .w-textbook-intro{grid-template-columns:76px minmax(0,1fr);gap:12px 16px}#world-platform .w-textbook-cover{width:76px;grid-row:1/3;align-self:start}#world-platform .w-textbook-purpose{grid-column:2}}
@media(max-width:520px){#world-platform .w-textbook-intro{grid-template-columns:64px minmax(0,1fr);gap:10px 12px;padding:14px;border-radius:16px}#world-platform .w-textbook-cover{width:64px;grid-row:auto}#world-platform .w-textbook-intro h2{font-size:21px}#world-platform .w-textbook-intro .w-textbook-label{font-size:11px}#world-platform .w-textbook-intro .w-textbook-level,#world-platform .w-textbook-intro .w-textbook-authors{font-size:13px}#world-platform .w-textbook-purpose{grid-column:1/-1}#world-platform .w-textbook-purpose>p{font-size:14px;line-height:1.45}}