/* The reading app: clean edges, warm surfaces and a vivid Spanish-red accent. */
.student-app{--ink:var(--ww-outline);--paper:var(--ww-background);--edge:var(--ww-sky-light);--muted:#756d6b;--red:var(--ww-ocean-dark);font-family:"Segoe UI Variable","Segoe UI",system-ui,sans-serif;-webkit-font-smoothing:antialiased}
.student-app h1,.student-app h2,.student-app h3,.student-app .brand,.student-app .menu-brand{font-family:"Bahnschrift","Segoe UI Variable","Segoe UI",sans-serif;letter-spacing:-.035em}
.student-app button,.student-app .button{border:1.5px solid var(--ink);border-radius:12px;box-shadow:0 3px 0 var(--ink);font-weight:700;transition:background .2s,color .2s,box-shadow .2s,transform .2s}
.student-app button:hover,.student-app .button:hover{transform:translateY(-2px);box-shadow:0 5px 0 var(--ink)}
.student-app button:active,.student-app .button:active{transform:translateY(1px);box-shadow:0 1px 0 var(--ink)}
.student-app :is(a,button,select,input,summary):focus-visible{outline:3px solid var(--red);outline-offset:4px}
.student-app .topbar{position:sticky;top:0;z-index:30;max-width:none;margin:0;padding:16px max(5%,calc((100vw - 1260px)/2));min-height:78px;background:#faf8f3f5;backdrop-filter:blur(14px);border:0;border-bottom:1px solid var(--edge);box-shadow:none;flex-wrap:nowrap;align-items:center;gap:20px}
.student-app .brand{display:flex;align-items:center;gap:8px;font-size:29px;font-weight:800;letter-spacing:-1.5px;line-height:1;white-space:nowrap}
.student-app .brand-mark{width:36px;height:36px;flex-shrink:0;color:var(--red)}
.student-app .brand .brand-name{font:inherit;letter-spacing:inherit;margin:0;line-height:inherit;max-width:none}
.header-actions{display:flex;gap:18px;align-items:center;margin-left:auto}
.student-app .passport{display:block;border:0;background:transparent;box-shadow:none;border-radius:0;padding:0;color:var(--muted);font-size:12px;font-weight:600}
.student-app .menu-toggle{display:flex;gap:18px;background:white;color:var(--ink);padding:12px 16px;border:1px solid var(--edge);border-radius:12px;box-shadow:none;font-size:13px;min-height:44px}
.student-app .menu-toggle:hover{background:#fff0f0;border-color:#e5b9bc;transform:none;box-shadow:none}
.hamburger{width:19px;display:grid;gap:4px}
.hamburger i{display:block;height:2px;border-radius:2px;background:var(--ink);width:19px}
.hamburger i:nth-child(2){width:13px;margin-left:auto}
.student-app.menu-open{overflow:hidden}
.student-app .site-menu{position:fixed;inset:12px 12px 12px auto;margin:0;width:min(410px,calc(100vw - 24px));max-width:none;max-height:none;height:calc(100dvh - 24px);padding:28px;border:1px solid var(--edge);border-radius:22px;background:var(--paper);box-shadow:0 24px 90px #1c151533;overflow-y:auto;color:var(--ink)}
.site-menu[open]{display:flex;flex-direction:column;animation:drawer-enter .28s cubic-bezier(.2,.7,.2,1)}
.student-app .site-menu::backdrop{background:#211a1959;backdrop-filter:blur(4px)}
.menu-heading{display:flex;align-items:center;justify-content:space-between;gap:15px}
.menu-heading .eyebrow{font-size:10px;letter-spacing:1.5px;color:var(--muted)}
.menu-heading .eyebrow:before{border:0;border-radius:50%;width:6px;height:6px;background:var(--red)}
.student-app .menu-close{display:grid;place-items:center;background:white;color:var(--ink);font:400 28px/1 "Segoe UI",sans-serif;width:40px;height:40px;min-width:40px;padding:0;margin:0;border:1px solid var(--edge);box-shadow:none;border-radius:50%}
.student-app .menu-close:hover{transform:rotate(90deg);box-shadow:none;background:#fce5e7}
.student-app .menu-brand{font-size:44px;font-weight:800;text-decoration:none;margin:38px 0 30px;line-height:1.1}
.menu-brand span{display:block;color:var(--muted);font:500 14px/1.5 "Segoe UI",sans-serif;letter-spacing:0;margin-top:10px}
.site-menu nav{display:grid;gap:7px}
.site-menu nav a{display:flex;align-items:center;gap:14px;min-height:65px;padding:15px 12px;border:1px solid transparent;border-radius:12px;text-decoration:none;font-size:16px;font-weight:650;transition:background .2s,border-color .2s,transform .2s}
.site-menu nav a>span:last-child:not(:nth-child(2)){margin-left:auto}
.site-menu .menu-number{font-size:11px;font-weight:700;color:var(--muted);font-variant-numeric:tabular-nums;letter-spacing:1px}
.site-menu nav a:hover{background:#f0ece5;transform:translateX(3px)}
.site-menu nav a[aria-current=page]{background:#fce7e8;border-color:#efc4c7;color:#a91825}
.menu-preferences{margin-top:auto;padding-top:35px}
.menu-preferences .native-language-label{font-size:12px;color:var(--muted);gap:10px}
.menu-preferences .language-picker{font:600 14px "Segoe UI",sans-serif;width:100%;max-width:none;border:1px solid #d5cec4;border-radius:10px;padding:13px;background:white}
.student-app main{padding-top:40px;max-width:1260px}
.student-app .hero h1{font-weight:850;letter-spacing:-.065em;font-size:clamp(54px,7vw,90px);line-height:1.03}
.student-app .hero h1 em{border:0;border-radius:8px;box-shadow:none;padding:2px 14px 7px;transform:rotate(-2deg)}
.student-app .hero p{font-size:17px;color:#615957;line-height:1.8}
.student-app .ticker{border:0;border-radius:12px;background:var(--ww-sun);letter-spacing:.07em}
.student-app .island{border:1.5px solid var(--ink);border-radius:18px;box-shadow:0 4px 0 var(--ink);padding:25px;transition:transform .25s cubic-bezier(.2,.7,.2,1),box-shadow .25s}
.student-app .island:hover{transform:translateY(-6px);box-shadow:0 10px 0 var(--ink)}
.student-app .island-icon{border:1px solid #26232433;box-shadow:none;border-radius:15px;transform:rotate(-4deg);transition:transform .25s;background:#fffdf2e8}
.student-app .island:hover .island-icon{transform:rotate(3deg) scale(1.07)}
.student-app .island h3{font-size:26px;font-weight:750}
.student-app .island p{font-size:14px;line-height:1.6}
.student-app .island-bottom{border-top:1px solid #2623243d;padding-top:15px}
.student-app .channel-panel{border:1.5px solid var(--ink);border-radius:18px;box-shadow:0 4px 0 var(--ink)}
.student-app .lab-banner{border:0;border-radius:18px;padding:32px;gap:25px}
.student-app .lab-banner .button{box-shadow:none}
.student-app .lab-banner h2{margin:8px 0 10px}
.student-app .reader-layout{grid-template-columns:252px minmax(0,1fr);gap:36px;align-items:start}
.student-app .reader-sidebar{position:sticky;top:104px;border:1px solid var(--edge);border-radius:18px;background:var(--ww-panel);padding:20px;overflow:hidden}
.student-app .reader-sidebar a{margin:0;white-space:normal;line-height:1.5}
.student-app .reader-back{display:flex;gap:10px;align-items:center;padding:0 0 22px;color:var(--muted);font-size:12px;border:0;font-weight:600;transition:color .2s}
.student-app .reader-back:hover{color:var(--red)}
.chapter-overview{padding:0 0 18px}
.chapter-top{display:flex;align-items:center;gap:12px}
.chapter-symbol{display:grid;place-items:center;font-size:26px;line-height:1;background:#fff0d7;border-radius:12px;width:48px;height:48px;flex-shrink:0}
.chapter-top .eyebrow{font-size:10px;letter-spacing:1.2px;color:var(--muted)}
.chapter-top .eyebrow:before{display:none}
.student-app .reader-sidebar h2{font-size:25px;line-height:1.2;font-weight:750;margin:17px 0 8px}
.chapter-subtitle{font-size:13px;line-height:1.6;color:var(--muted);margin:0 0 18px}
.chapter-progress{height:4px;background:#eee8e0;border-radius:8px;overflow:hidden}
.chapter-progress span{display:block;height:100%;background:var(--red);border-radius:8px;transition:width .4s ease}
.chapter-position{font-size:11px;color:var(--muted);margin:9px 0 0;font-weight:600;font-variant-numeric:tabular-nums}
.chapter-navigation{border-top:1px solid var(--edge);padding:16px 0}
.chapter-navigation summary{display:flex;align-items:center;justify-content:space-between;list-style:none;font-size:11px;letter-spacing:.06em;text-transform:uppercase;font-weight:700;cursor:pointer;color:var(--muted)}
.chapter-navigation summary::-webkit-details-marker{display:none}
.chapter-navigation summary>span{font-size:19px;transition:transform .22s}
.chapter-navigation[open] summary>span{transform:rotate(180deg)}
.student-app .section-links{display:grid;gap:6px;overflow:visible;padding:14px 0 0}
.student-app .section-links a{display:flex;gap:10px;align-items:center;padding:12px 10px;border:1px solid transparent;border-radius:10px;font-size:13px;line-height:1.5;transition:background .2s,transform .2s,border-color .2s}
.student-app .section-links a:hover{background:#f5f0e9;transform:translateX(3px)}
.student-app .section-links a.active{background:#fcebed;border-color:#f1cacf;color:#a71928;font-weight:650}
.lesson-number{font-size:10px;font-weight:700;font-variant-numeric:tabular-nums;color:var(--muted);min-width:17px}
.section-links a.active .lesson-number{color:#b41c2b}
.lesson-current{width:6px;height:6px;background:var(--red);border-radius:50%;margin-left:auto;flex-shrink:0}
.chapter-actions{display:grid;gap:10px;border-top:1px solid var(--edge);padding-top:16px}
.student-app .chapter-actions a{font-weight:650;font-size:12px;border:0;display:flex;gap:10px;align-items:center;padding:10px 2px}
.chapter-actions .all-topics>span:last-child{margin-left:auto}
.student-app .chapter-actions .dice-link{justify-content:center;border:1px solid #e4dcd2;border-radius:10px;padding:12px;background:#f6f1e8;transition:background .2s,color .2s}
.student-app .chapter-actions .dice-link:hover{background:#fce7e8;color:#a71928}
.student-app .reader-toolbar{margin-bottom:18px;gap:8px}
.student-app .reader-toolbar button{color:#5f5653;border:1px solid var(--edge);border-radius:9px;box-shadow:none;background:var(--ww-panel);font-size:12px;padding:10px 12px;min-height:38px}
.student-app .reader-toolbar button:hover{background:#f3ede5;box-shadow:none;transform:none;color:var(--ink)}
.student-app .reader-toolbar button[aria-pressed=true]{background:#fce7e8;color:#a71928;border-color:#efc4c7}
.student-app .reader-paper{border:1px solid var(--edge);background:var(--ww-panel);box-shadow:0 8px 30px #36241804;border-radius:20px;padding:clamp(24px,4vw,48px)}
.student-app .page-meta{color:var(--muted);font-size:10px;letter-spacing:.1em;margin-bottom:26px}
.student-app .book-content{line-height:1.85}
.student-app .book-content h1{font-size:clamp(29px,3vw,40px);line-height:1.15;margin:20px 0 24px;font-weight:750;max-width:24ch}
.student-app .book-content h2{font-size:23px;margin-top:36px}
.student-app .lesson-art{font-size:48px;line-height:1;margin:0 0 24px}
.student-app .lesson-art>span{display:inline-grid;place-items:center;background:#f8efd8;border-radius:18px;width:80px;height:80px}
.student-app .lesson-objective{border:0;border-left:3px solid var(--ww-ocean-dark);background:#fceff0;border-radius:0 10px 10px 0;padding:16px 18px;font-size:15px;font-weight:600;line-height:1.7;color:#7b2930}
.student-app .own-description{color:#4e4744;margin-top:26px;font-size:1em}
.student-app .table-scroll{border:1px solid var(--edge);border-radius:12px;overflow:auto}
.student-app .book-content table{font-size:15px}
.student-app .book-content caption{padding:16px;text-align:left;background:#f6f1e8;font-weight:600;font-size:12px;color:#685e57;caption-side:top}
.student-app .book-content th{background:#a71928;color:#fff;border:0;padding:14px 16px;font-weight:650;font-size:13px}
.student-app .book-content tbody tr:first-child td{background:var(--ww-panel);color:var(--ink);font-weight:400;border-color:var(--edge)}
.student-app .book-content td{border:0;border-bottom:1px solid var(--edge);padding:13px 16px;vertical-align:top}
.student-app .book-content tbody tr:nth-child(even) td{background:#faf7f1}
.student-app .book-content tbody tr:last-child td{border-bottom:0}
.student-app .book-content td:first-child{font-weight:600!important}
.student-app .reader-bottom{gap:12px;margin-top:24px}
.student-app .reader-bottom button,.student-app .reader-bottom .button{padding:12px 16px;font-size:12px}
.student-app .library-list{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.student-app .library-list a{border:1px solid var(--edge);border-radius:14px;background:var(--ww-panel);padding:22px;align-items:center;transition:border-color .2s,transform .2s,background .2s}
.student-app .library-list a:hover{border-color:#e0acb0;background:#fceff0;transform:translateY(-3px)}
.student-app .library-list span{font-size:27px}
.student-app .library-list strong{font-size:15px;font-weight:650;line-height:1.5}
.student-app .search{border:1px solid #d8cfc3;border-radius:12px;font:inherit;background:var(--ww-panel);padding:17px 20px}
.student-app .focus-mode .reader-layout{grid-template-columns:minmax(0,850px)}
.student-app .native-language-dialog{border:1px solid var(--ink);border-radius:20px;box-shadow:0 6px 0 var(--ink);padding:36px}
.student-app .native-language-dialog button{color:var(--ink)}
@keyframes drawer-enter{from{opacity:0;transform:translateX(30px)}to{opacity:1;transform:translateX(0)}}
@keyframes chapter-enter{from{opacity:0;transform:translateY(-5px)}to{opacity:1;transform:translateY(0)}}
.chapter-navigation[open] .section-links{animation:chapter-enter .22s ease}
@media(max-width:900px){.student-app .reader-layout{grid-template-columns:minmax(0,1fr);gap:20px}.student-app .reader-sidebar{position:static;padding:20px}.student-app .reader-back{padding-bottom:15px}.chapter-overview{position:relative;padding-bottom:16px}.student-app .reader-sidebar h2{margin:12px 0 6px;font-size:25px}.chapter-subtitle{margin-bottom:12px}.student-app .section-links{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));overflow:visible;gap:8px;padding-bottom:0}.chapter-actions{grid-template-columns:1fr 1fr;align-items:center;gap:20px}.chapter-navigation{padding-bottom:14px}.student-app .reader-sidebar .chapter-actions a{white-space:normal}.student-app .passport{display:block;font-size:11px}}
@media(max-width:600px){.student-app .topbar{padding:14px 5%;min-height:72px}.student-app .brand{font-size:26px}.student-app .brand-mark{width:30px;height:30px}.header-actions{gap:12px}.student-app .passport{display:none}.student-app .menu-toggle{padding:10px 13px;gap:13px;font-size:12px}.student-app main{padding:25px 5% 50px}.student-app .hero h1{font-size:58px}.student-app .hero p{font-size:16px}.student-app .map{gap:15px}.student-app .island{padding:18px;min-height:240px;border-radius:15px}.student-app .island h3{font-size:21px}.student-app .island p{font-size:12px}.student-app .island-bottom{font-size:10px;gap:8px}.student-app .reader-sidebar{border-radius:15px;padding:18px}.student-app .reader-back{font-size:11px}.student-app .reader-sidebar h2{font-size:24px}.student-app .section-links{grid-template-columns:1fr}.student-app .reader-paper{padding:25px 20px;border-radius:16px}.student-app .book-content h1{font-size:32px}.student-app .chapter-actions a{font-size:11px}.chapter-actions{gap:16px}.student-app .reader-toolbar button{font-size:11px;padding:9px 11px}.student-app .reader-bottom .button,.student-app .reader-bottom button{font-size:11px;padding:11px 13px}.student-app .reader-bottom{justify-content:flex-start;gap:12px}.student-app .library-list{grid-template-columns:1fr}.student-app .site-menu{padding:24px}.student-app .menu-brand{font-size:40px}.student-app .native-language-dialog{padding:26px}.student-app .native-language-dialog .hero-actions{display:grid}.student-app .native-language-dialog button{font-size:13px}}
@media(prefers-reduced-motion:reduce){.student-app *{animation:none!important;transition:none!important;scroll-behavior:auto!important}}
@media print{.site-menu,.chapter-actions{display:none!important}}

/* Colorful, tactile controls throughout the children's app. */
.student-app{--button-color:var(--ww-sun);--button-ink:var(--ww-outline)}
.student-app.student-app :is(button,.button,.chapter-actions a,.site-menu nav a,.chapter-navigation summary,.language-picker){background:var(--button-color);color:var(--button-ink);border:2px solid var(--ww-outline);border-radius:9px;box-shadow:3px 3px 0 var(--ww-outline);font-weight:750;transition:transform .18s ease,box-shadow .18s ease,filter .18s ease;min-height:44px}
.student-app.student-app :is(button,.button,.chapter-actions a,.site-menu nav a,.chapter-navigation summary,.language-picker):hover{background:var(--button-color);color:var(--button-ink);border-color:var(--ww-outline);transform:translate(-1px,-2px);box-shadow:4px 5px 0 var(--ww-outline);filter:brightness(1.035)}
.student-app.student-app :is(button,.button,.chapter-actions a,.site-menu nav a,.chapter-navigation summary):active{transform:translate(2px,2px);box-shadow:1px 1px 0 var(--ww-outline);filter:none}
.student-app :is(button,.button):nth-child(4n+2){--button-color:var(--ww-sky-light)}
.student-app :is(button,.button):nth-child(4n+3){--button-color:var(--ww-leaf)}
.student-app :is(button,.button):nth-child(4n+4){--button-color:var(--ww-orange)}
.student-app #menu-toggle{--button-color:var(--ww-sun)}
.student-app #menu-close{--button-color:var(--ww-orange);border-radius:9px}
.student-app #smaller{--button-color:var(--ww-sky-light)}
.student-app #larger{--button-color:var(--ww-sun)}
.student-app #focus{--button-color:var(--ww-leaf)}
.student-app #bookmark{--button-color:var(--ww-orange)}
.student-app #complete{--button-color:var(--ww-ocean-dark);--button-ink:#fff}
.student-app .reader-bottom .button:first-child{--button-color:var(--ww-sky-light)}
.student-app .reader-bottom .button:last-child{--button-color:var(--ww-leaf)}
.student-app .hero-actions .button:first-child{--button-color:var(--ww-ocean-dark);--button-ink:#fff}
.student-app .hero-actions .button.secondary{--button-color:var(--ww-sun);--button-ink:var(--ww-outline)}
.student-app .native-language-dialog [data-native=en]{--button-color:var(--ww-sky-light)}
.student-app .native-language-dialog [data-native="pt-BR"]{--button-color:var(--ww-leaf)}
.student-app .site-menu nav a:nth-child(1){--button-color:var(--ww-sun)}
.student-app .site-menu nav a:nth-child(2){--button-color:var(--ww-leaf)}
.student-app .site-menu nav a:nth-child(3){--button-color:var(--ww-sky-light)}
.student-app .site-menu nav a:nth-child(4){--button-color:var(--ww-orange)}
.student-app .site-menu nav a[aria-current=page]{outline:2px solid var(--ww-outline);outline-offset:3px}
.student-app .site-menu .menu-number{color:var(--button-ink);opacity:.75}
.student-app .menu-preferences .language-picker{--button-color:var(--ww-sun)}
.native-language-cards{margin:0;padding:0;border:0;min-width:0;display:grid;gap:13px}
.native-language-cards legend{padding:0;font-size:15px;font-weight:800;color:var(--ink)}
.language-goal{font-size:13px;line-height:1.6;margin:7px 0 3px;color:var(--muted)}
.language-goal span{display:block;font-weight:800;color:var(--ink)}
.student-app.student-app .native-language-card{display:flex;align-items:center;gap:13px;width:100%;padding:15px;text-align:left;text-transform:none;letter-spacing:normal;--button-color:var(--ww-sky-light)}
.student-app.student-app .native-language-card[data-language="pt-BR"]{--button-color:var(--ww-leaf)}
.native-language-card .language-code{display:grid;place-items:center;flex:0 0 42px;height:42px;border:2px solid var(--ww-outline);background:var(--ww-panel);border-radius:7px;font-size:16px;font-weight:900}
.native-language-card .language-copy{display:grid;gap:4px;min-width:0}
.native-language-card strong{font-size:19px;line-height:1.2}
.native-language-card small{font-size:12px;font-weight:600}
.native-language-card .language-check{margin-left:auto;font-size:23px;font-weight:900}
.student-app.student-app .native-language-card[aria-pressed="true"]{box-shadow:5px 5px 0 var(--ww-outline)}
.native-language-card[aria-pressed="true"] .language-check{background:var(--ww-sun);border:2px solid var(--ww-outline);border-radius:50%;width:29px;height:29px;display:grid;place-items:center;font-size:18px;flex-shrink:0}
.student-app .chapter-actions .all-topics{--button-color:var(--ww-leaf);padding:11px 12px}
.student-app .chapter-actions .dice-link{--button-color:var(--ww-sky-light)}
.student-app .chapter-navigation summary{--button-color:var(--ww-sun);padding:10px 12px;color:var(--ww-outline);letter-spacing:.035em;font-size:10px}
.student-app .reader-toolbar{gap:12px}
.student-app .reader-toolbar button[aria-pressed=true]{outline:2px solid var(--ww-outline);outline-offset:3px}
.student-app .site-menu nav{gap:14px}
.student-app .chapter-actions{gap:14px;padding-bottom:4px}
.student-app .reader-bottom{gap:16px}
@media(prefers-reduced-motion:reduce){.student-app.student-app :is(button,.button,.chapter-actions a,.site-menu nav a,.chapter-navigation summary,.language-picker){transition:none!important}}

.student-app.student-app .reader-back.button{--button-color:var(--ww-orange);display:flex;justify-content:center;padding:11px 12px;margin:0 0 22px;font-size:12px;color:var(--ww-outline)}
.student-app.student-app .table-scroll{max-height:min(440px,60vh);overflow:auto;border:2px solid var(--ww-outline);border-radius:10px;box-shadow:4px 4px 0 var(--ww-outline);scrollbar-gutter:stable;scrollbar-width:auto;scrollbar-color:var(--ww-ocean-dark) var(--ww-sun);overscroll-behavior-y:contain;background:var(--ww-panel)}
.student-app .table-scroll:focus-visible{outline:3px solid var(--ww-leaf);outline-offset:5px}
.student-app .table-scroll::-webkit-scrollbar{width:14px;height:14px}
.student-app .table-scroll::-webkit-scrollbar-track{background:var(--ww-sun);border-left:2px solid var(--ww-outline)}
.student-app .table-scroll::-webkit-scrollbar-thumb{background:var(--ww-ocean-dark);border:2px solid var(--ww-outline);border-radius:4px}
.student-app .table-scroll::-webkit-scrollbar-corner{background:var(--ww-sun)}
.student-app .table-scroll table{margin:0}
.student-app .table-scroll th{position:sticky;top:0;z-index:2;background:var(--ww-ocean-dark);box-shadow:0 2px 0 var(--ww-outline)}
.student-app .table-scroll caption{background:var(--ww-sun);color:var(--ww-outline);font-weight:750;border-bottom:2px solid var(--ww-outline)}
.student-app .section-links{max-height:280px;overflow-y:auto;overflow-x:hidden;scrollbar-width:thin;scrollbar-color:var(--ww-ocean-dark) var(--ww-sun);overscroll-behavior-y:contain;padding-right:5px}
@media(max-width:600px){.student-app.student-app .table-scroll{max-height:min(360px,55vh)}.student-app .section-links{max-height:220px}.student-app.student-app .reader-back.button{font-size:11px;margin-bottom:18px}}

.vocabulary-search{margin:18px 0 0}
.vocabulary-search>label{display:block;font-size:12px;font-weight:750;margin-bottom:9px}
.vocabulary-search-field{display:flex;align-items:center;gap:12px;background:var(--ww-sun);border:2px solid var(--ww-outline);border-radius:10px;padding:10px 12px;box-shadow:3px 3px 0 var(--ww-outline)}
.vocabulary-search-field>svg{width:23px;height:23px;flex-shrink:0;fill:none;stroke:var(--ww-outline);stroke-width:2.3;stroke-linecap:round}
.vocabulary-search-field input{min-width:0;width:100%;border:0;background:transparent;color:var(--ww-outline);padding:5px 0;font:600 14px "Segoe UI",sans-serif;min-height:32px}
.vocabulary-search-field input::placeholder{color:#62531c;font-weight:400}
.vocabulary-search-field input:focus-visible{outline:0}
.vocabulary-search-field:focus-within{outline:3px solid var(--ww-leaf);outline-offset:4px}
.student-app.student-app #clear-vocabulary{--button-color:var(--ww-sky-light);min-height:34px;width:34px;flex-shrink:0;padding:0;font-size:23px;line-height:1}
.student-app.student-app #clear-vocabulary[hidden]{display:none}
#vocabulary-count{color:var(--muted);font-size:11px;margin:10px 0 0;font-weight:600}
.student-app .vocabulary-no-results td{text-align:center;padding:28px 18px!important;font-weight:500!important;color:var(--muted)}

/* Prototype: a chapter mission driven by JSON, using only taps or clicks. */
.student-app .lesson-mission{font-size:16px;margin:36px 0;padding:24px;border:2px solid var(--ww-outline);border-radius:14px;background:#f5efff;box-shadow:5px 5px 0 var(--ww-outline);line-height:1.6}
.student-app .lesson-mission[hidden]{display:none}
.mission-top{display:flex;justify-content:space-between;align-items:center;gap:12px;font-size:11px;font-weight:800;letter-spacing:.07em}
.mission-badge{font-size:10px;letter-spacing:.08em;font-weight:800;color:#5d397c}
.student-app .lesson-mission h2{font-size:27px;margin:14px 0 12px;line-height:1.15}
.student-app .lesson-mission p.mission-intro{font-size:14px;line-height:1.7;margin:0 0 22px;color:#554a5b}
.mission-questions{display:grid;gap:18px;margin:0 0 24px}
.mission-question,.world-picker{min-inline-size:0;margin:0;padding:16px;border:2px solid var(--ww-outline);border-radius:10px;background:var(--ww-panel)}
.mission-question legend,.world-picker legend{padding:0 7px;font-size:12px;font-weight:750;color:#403945;max-width:100%}
.student-app .lesson-mission .mission-sentence{font-size:24px;font-weight:750;line-height:1.4;margin:8px 0 18px}
.mission-sentence>span{display:inline-block;min-width:65px;text-align:center;border-bottom:3px solid var(--ww-ocean-dark);color:#b01829}
.mission-choices{display:grid;grid-template-columns:1fr 1fr;gap:15px;padding-right:4px}
.student-app .lesson-mission .mission-choices button{min-height:52px;font-size:19px;--button-color:var(--ww-sun)}
.student-app .lesson-mission .mission-choices button:nth-child(2){--button-color:var(--ww-sky-light)}
.student-app .lesson-mission .mission-choices button:nth-child(3){--button-color:var(--ww-orange)}
.student-app .lesson-mission .mission-choices button{min-width:0;overflow-wrap:anywhere;white-space:normal}
.mission-prompt{font-size:16px;line-height:1.55;margin:8px 0 16px}
.student-app.student-app .vocabulary-speak{display:flex;align-items:center;gap:10px;width:100%;min-height:48px;padding:10px 12px;font:inherit;font-weight:750;text-align:left;text-transform:none;letter-spacing:normal;white-space:normal;overflow-wrap:anywhere;--button-color:var(--ww-sun)}
.student-app.student-app tr:nth-child(3n+2) .vocabulary-speak{--button-color:var(--ww-sky-light)}
.student-app.student-app tr:nth-child(3n) .vocabulary-speak{--button-color:var(--ww-leaf)}
.vocabulary-speak>span:first-child{font-size:23px;flex-shrink:0}
.student-app.student-app .vocabulary-speak.is-speaking{--button-color:var(--ww-ocean-dark);--button-ink:#fff;outline:3px solid var(--ww-outline);outline-offset:3px;transform:translate(2px,2px);box-shadow:1px 1px 0 var(--ww-outline)}
#vocabulary-table td:first-child{padding:10px 13px 12px 10px}
.pronunciation-settings{margin-top:25px;border-top:2px solid var(--ww-outline);padding-top:20px}
.pronunciation-settings summary{cursor:pointer;font-weight:800;font-size:16px;padding:10px 0}
.pronunciation-settings label{display:block;font-size:13px;margin:12px 0 8px}
.pronunciation-settings select{width:100%;min-height:48px;border:2px solid var(--ww-outline);border-radius:8px;box-shadow:3px 3px 0 var(--ww-outline);background:var(--ww-sun);padding:10px;font:600 14px "Segoe UI",sans-serif;color:var(--ww-outline)}
.pronunciation-settings p{font-size:12px;line-height:1.5;color:var(--muted);margin-top:14px}
.student-app .lesson-mission button[aria-pressed=true]{outline:3px solid var(--ww-outline);outline-offset:3px}
.student-app .lesson-mission .mission-feedback{font-size:13px;line-height:1.6;margin:16px 0 0;min-height:23px;color:#6f4054}
.student-app .lesson-mission .mission-feedback.is-correct{color:#345a31}
.student-app .lesson-mission button:disabled{opacity:.5;cursor:default;filter:none;transform:none}
.student-app .lesson-mission :is(#mission-next,#mission-finish){--button-color:var(--ww-ocean-dark);--button-ink:white;width:100%;font-size:13px;min-height:52px}
.explorer-passport{border:2px solid var(--ww-outline);border-radius:12px;background:var(--ww-sun);padding:22px 18px;text-align:center;box-shadow:3px 3px 0 var(--ww-outline);margin:20px 0 28px}
.explorer-icon{display:block;font-size:45px;margin-bottom:12px}
.explorer-passport .mission-badge{color:#514000}
.student-app .lesson-mission #explorer-story{font-size:24px;line-height:1.7;margin:16px 0 0;color:var(--ww-outline)}
.explorer-passport strong{color:#a71928}
.world-picker{margin-bottom:22px;padding:15px 12px 18px}
.world-options{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;padding-right:4px}
.student-app .lesson-mission .world-options button{display:flex;flex-direction:column;gap:8px;padding:14px 6px;min-height:90px;font-size:12px;line-height:1.25;--button-color:var(--ww-sun);--button-ink:var(--ww-outline);overflow-wrap:anywhere}
.world-options button>span:first-child{font-size:29px;line-height:1.1}
.student-app .lesson-mission .world-options button:nth-child(2){--button-color:var(--ww-sky-light)}
.student-app .lesson-mission .world-options button:nth-child(3){--button-color:var(--ww-leaf)}
.mission-actions{display:grid;gap:16px;margin-top:22px}
.student-app .lesson-mission #mission-restart{--button-color:var(--ww-sky-light);--button-ink:var(--ww-outline);font-size:12px;width:100%}
.mission-success{text-align:center;padding:20px 0}
.mission-success>span{font-size:55px;display:block}
.student-app .mission-success h3{font-size:28px;line-height:1.2;margin:18px 0}
.student-app .mission-success>p[lang=es]{font-size:25px;line-height:1.7;background:var(--ww-sun);border:2px solid var(--ww-outline);border-radius:10px;padding:18px;margin:20px 0}
.student-app .mission-success>p:last-child{font-size:14px;line-height:1.7}
@media(max-width:600px){.student-app .lesson-mission{padding:18px 14px}.student-app .lesson-mission h2{font-size:24px}.mission-question{padding:14px}.world-options{gap:10px}.student-app .lesson-mission .world-options button{font-size:11px;padding:12px 4px}.student-app .lesson-mission .mission-sentence,.student-app .lesson-mission #explorer-story{font-size:22px}}
.student-app.student-app #mission-restart[hidden]{display:none}
.student-app.student-app .hero-dice{--button-color:var(--ww-leaf)}
.map-search{margin:20px 0}.map-search label{display:block;font-weight:800;margin-bottom:10px}.map-search>div{display:flex;align-items:center;gap:12px;padding:10px 16px;background:var(--ww-sun);border:2px solid var(--ww-outline);border-radius:10px;box-shadow:4px 4px 0 var(--ww-outline)}.map-search input{width:100%;min-width:0;min-height:38px;background:transparent;border:0;font:inherit;color:var(--ww-outline)}.map-search input:focus{outline:0}.map-search>div:focus-within{outline:3px solid var(--ww-sky-light);outline-offset:4px}.map-search p{font-size:13px;margin:14px 0}
.map-scroll{max-height:390px;overflow-y:auto;padding:18px 22px 24px 16px;border:2px solid var(--ww-outline);border-radius:12px;box-shadow:5px 5px 0 var(--ww-outline);background:var(--ww-cream);scrollbar-width:auto;scrollbar-color:var(--ww-ocean-dark) var(--ww-sun);overscroll-behavior:contain}.map-scroll::-webkit-scrollbar{width:16px}.map-scroll::-webkit-scrollbar-track{background:var(--ww-sun);border-left:2px solid var(--ww-outline)}.map-scroll::-webkit-scrollbar-thumb{background:var(--ww-ocean-dark);border:2px solid var(--ww-outline);border-radius:5px}.student-app .map-scroll .map{grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.student-app .map-scroll .island[hidden],#map-empty[hidden]{display:none}.map-scroll:focus-visible{outline:3px solid var(--ww-sky-light);outline-offset:4px}
@media(max-width:800px){.student-app .map-scroll .map{grid-template-columns:1fr}.map-scroll{max-height:780px;padding:14px 20px 20px 12px}.student-app .map-scroll .island{min-height:230px}}
.about-footer{display:flex;justify-content:center;padding:25px 5% 55px}.student-app.student-app #about-open{--button-color:var(--ww-sun);padding:14px 32px;font-size:17px}
.about-dialog{box-sizing:border-box;width:min(780px,92vw);max-height:88dvh;overflow-y:auto;padding:clamp(20px,4vw,36px);border:3px solid var(--ww-outline);border-radius:16px;background:#fffdf7;color:var(--ww-outline);box-shadow:8px 8px 0 var(--ww-outline);scrollbar-color:var(--ww-ocean-dark) var(--ww-sun)}.about-dialog::backdrop{background:rgba(25,20,30,.65)}.about-heading{display:flex;justify-content:space-between;align-items:flex-start;gap:20px}.about-heading h2{font-size:clamp(28px,5vw,40px);margin:8px 0 20px;line-height:1.15}.student-app.student-app #about-close{--button-color:var(--ww-orange);flex-shrink:0;font-size:25px;padding:6px 14px}.about-copy p{font-size:16px;line-height:1.75;margin:0 0 18px}.about-services{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin:28px 0}.about-services section{border:2px solid var(--ww-outline);border-radius:12px;padding:20px;background:var(--ww-sun);box-shadow:3px 3px 0 var(--ww-outline)}.about-services section:nth-child(2){background:var(--ww-leaf)}.about-services section>span{font-size:28px}.about-services h3{margin:10px 0;font-size:22px}.about-services p{font-size:14px;line-height:1.6}.student-app.student-app .about-services .button{--button-color:var(--ww-sky-light);text-transform:none;letter-spacing:0}.about-links{display:flex;flex-wrap:wrap;justify-content:center;gap:14px}.student-app.student-app .about-links .button{--button-color:var(--ww-sky-light);font-size:13px;padding:10px 14px;text-transform:none;letter-spacing:0}.student-app.student-app .about-links .button:nth-child(2n){--button-color:var(--ww-leaf)}.student-app.student-app .about-links .button:nth-child(3n){--button-color:var(--ww-orange)}@media(max-width:600px){.about-services{grid-template-columns:1fr}.about-copy p{font-size:15px}.about-links .button{flex:1;text-align:center}.about-dialog{max-height:90dvh}}
.about-heading{position:sticky;top:0;z-index:2;background:#fffdf7;padding:12px 0;border-bottom:2px solid var(--ww-outline);margin-bottom:20px}.about-heading h2{margin-bottom:8px}
.student-app.student-app .hero-actions #about-open{--button-color:var(--ww-orange);font-size:inherit;padding:14px 22px}
.student-app .map-scroll{max-height:1100px}
.student-app .map-scroll{border:0;box-shadow:none;border-radius:0;background:transparent;padding-top:28px;padding-bottom:28px;scrollbar-width:thin;scrollbar-color:var(--ww-ocean-dark) transparent;mask-image:linear-gradient(to bottom,transparent,#000 28px,#000 calc(100% - 28px),transparent);-webkit-mask-image:linear-gradient(to bottom,transparent,#000 28px,#000 calc(100% - 28px),transparent)}
.map-scroll::-webkit-scrollbar{width:8px}.map-scroll::-webkit-scrollbar-track{background:transparent;border:0}.map-scroll::-webkit-scrollbar-thumb{border:0;border-radius:8px}
.student-app .map-scroll .island{opacity:0;transform:translateY(16px) scale(.98);transition:opacity .35s ease,transform .35s ease,box-shadow .2s ease}
.student-app .map-scroll .island.map-visible{opacity:1;transform:translateY(0) scale(1)}
.student-app .map-scroll .island.map-visible:hover{transform:translateY(-4px)}
@media(prefers-reduced-motion:reduce){.student-app .map-scroll .island{opacity:1;transform:none;transition:none}.student-app .map-scroll{mask-image:none;-webkit-mask-image:none}}
.student-app .map-scroll{mask-image:none;-webkit-mask-image:none}
.student-app .map-scroll{overscroll-behavior:auto}
.student-app #learning-map{position:relative}
.about-links .platform-icon{width:20px;height:20px;flex-shrink:0}.about-links .button{gap:8px}
.student-login-dialog{width:min(500px,90vw);border:2px solid var(--ww-outline);border-radius:14px;padding:28px;background:var(--ww-cream);box-shadow:6px 6px 0 var(--ww-outline)}.student-login-dialog h2{font-size:28px;line-height:1.2}.student-login-dialog p{line-height:1.7}.student-login-close{float:right;--button-color:var(--ww-orange)}#student-guest{--button-color:var(--ww-sky-light)}
.student-auth-tabs{display:flex;gap:12px;margin:20px 0}.student-auth-tabs button{--button-color:var(--ww-leaf)}.student-auth-tabs button[aria-pressed=true]{--button-color:var(--ww-sun)}.student-login-dialog label{display:block;font-weight:700;margin:16px 0}.student-login-dialog input{display:block;width:100%;box-sizing:border-box;margin-top:8px;padding:12px;border:2px solid var(--ww-outline);border-radius:8px;font:inherit}.student-login-dialog form>button{--button-color:var(--ww-sky-light);width:100%}.student-account-button{--button-color:var(--ww-sun);max-width:220px;overflow-wrap:anywhere;font-size:12px}
.roadmap-stars{font-size:22px;font-weight:800}.roadmap-worlds{display:grid;gap:24px;margin:30px 0}.roadmap-world{padding:24px;border:2px solid var(--ww-outline);border-radius:12px;background:var(--ww-cream);box-shadow:4px 4px 0 var(--ww-outline)}.roadmap-world-heading{display:flex;align-items:center;justify-content:space-between;gap:15px}.roadmap-world h2{font-size:23px}.roadmap-world button{--button-color:var(--ww-orange)}.roadmap-world ol{border-left:3px solid var(--ww-outline);list-style:none;padding:0 0 0 20px;margin-left:12px}.roadmap-world li{margin:18px 0}.roadmap-world li a{display:block;text-decoration:none;padding:15px;border:2px solid var(--ww-outline);border-radius:9px;background:var(--ww-sky-light);font-weight:750;box-shadow:3px 3px 0 var(--ww-outline)}.roadmap-world small{display:block;margin-top:8px;font-weight:500}
.student-app.student-app .roadmap-home{--button-color:var(--ww-orange);margin-bottom:22px;font-size:16px;min-height:48px;padding:13px 22px}
.local-emoji{display:inline-block;width:1.2em;height:1.2em;vertical-align:-.2em;object-fit:contain;flex-shrink:0}.island-icon .local-emoji,.lesson-art> .local-emoji{width:1em;height:1em}.button .local-emoji,button .local-emoji{margin-right:4px}
.student-app .site-menu .menu-heading{position:sticky;top:0;z-index:3;background:var(--paper);padding:12px 0;margin-bottom:16px;border-bottom:2px solid var(--ww-outline)}
.student-app.student-app .hero-extra-activities{--button-color:var(--ww-sun)}
.student-app .island h3 a{text-decoration:none}.student-app .island h3 a:hover{text-decoration:underline}.student-app.student-app .world-favorite{--button-color:var(--ww-panel);min-width:46px;min-height:46px;padding:8px;border-radius:9px}.student-app.student-app .world-favorite[aria-pressed=true]{--button-color:var(--ww-sun);outline:3px solid var(--ww-outline);outline-offset:2px}.world-explore{text-decoration:none;font-weight:800}.world-favorite .local-emoji{margin:0}.student-app .island{color:var(--ww-outline)}
/* Shared, derived student progress in Home and Roadmap. */
.learning-summary{margin:24px 0;padding:24px;border:3px solid var(--ww-outline);border-radius:12px;background:var(--ww-sun);box-shadow:5px 5px 0 var(--ww-outline);color:var(--ww-outline)}.learning-summary h2{font-size:26px;margin:0 0 16px}.learning-summary p{margin:10px 0}.learning-summary progress{display:block;appearance:none;-webkit-appearance:none;width:100%;height:24px;border:2px solid var(--ww-outline);border-radius:7px;overflow:hidden;background:var(--ww-panel)}.learning-summary progress::-webkit-progress-bar{background:var(--ww-panel)}.learning-summary progress::-webkit-progress-value{background:var(--ww-leaf);border-right:2px solid var(--ww-outline)}.learning-summary progress::-moz-progress-bar{background:var(--ww-leaf)}.learning-summary button{--button-color:var(--ww-sky-light);margin-top:12px}.learning-summary.compact{padding:14px;margin:18px 0;background:var(--ww-panel);box-shadow:none}.learning-summary.compact progress::-webkit-progress-value{background:var(--ww-sky-light)}.learning-summary.compact progress::-moz-progress-bar{background:var(--ww-sky-light)}.learning-status{font-weight:800}@media(max-width:600px){.roadmap-world-heading{flex-wrap:wrap}.learning-summary{padding:18px}}
.student-sync-status{display:inline-flex;align-items:center;gap:6px;max-width:230px;padding:8px 12px;border:2px solid var(--ww-outline);border-radius:8px;background:var(--ww-cream);color:var(--ww-outline);font-size:12px;font-weight:750;line-height:1.4}
.student-sync-status{--button-color:var(--ww-cream);cursor:pointer}.student-login-dialog a{font-weight:800;text-decoration:underline}.student-login-dialog p{overflow-wrap:anywhere}
/* Hidden controls must remain hidden even when button/layout rules set display. */
[hidden]{display:none!important}

/* The title link covers its world card; favorites remain a separate control. */
.student-app .island{position:relative;isolation:isolate;cursor:pointer}
.student-app .island .world-card-link::after{content:'';position:absolute;inset:0;z-index:1;border-radius:inherit}
.student-app .island .world-card-link:focus-visible{outline:none}
.student-app .island .world-card-link:focus-visible::after{outline:4px solid var(--ww-ocean-dark);outline-offset:5px}
.student-app .island .world-favorite{position:relative;z-index:2}