@font-face{font-family:Swiza;src:url('/static/fonts/swiza-regular-webfont.woff2') format('woff2');font-weight:400;font-display:swap}@font-face{font-family:Swiza;src:url('/static/fonts/swiza-semibold-webfont.woff2') format('woff2');font-weight:600;font-display:swap}@font-face{font-family:Swiza;src:url('/static/fonts/swiza-bold-webfont.woff2') format('woff2');font-weight:700;font-display:swap}
html{scroll-behavior:smooth}body.ak{background:var(--bg);margin:0}.app{min-height:100dvh;height:auto;container-type:inline-size}.hdr{position:sticky;top:0;z-index:30;gap:12px;padding:0 24px}.wordmark{font-size:34px;letter-spacing:-3px;color:var(--navy)}.logo-dot{color:var(--cyan);border:0!important;padding:0!important;font-size:14px!important}.hnav{gap:0;margin-left:0}.nav{padding:0 8px;font-size:14px}.nav.on::after{left:8px;right:8px}.ak a.btn{text-decoration:none}.main{display:block}.preview-label{padding:5px 20px;font-size:12px;background:#e5f6fb;color:#0b526b;text-align:center}.wrapc{width:100%;max-width:1184px}.footer{margin-top:auto;padding-top:42px;padding-bottom:24px;font-size:12px;color:var(--ink-3)}.skip{position:fixed;top:-100px;left:12px;z-index:100;background:var(--navy);color:white!important;padding:14px;border-radius:10px}.skip:focus{top:10px}.narrow{max-width:820px}.sect{margin-bottom:20px}.notice{padding:16px;border-radius:14px;background:var(--info-bg);border:1px solid var(--petrol);display:block}.notice.err{background:var(--err-bg);color:var(--err);border-color:var(--err)}.notice.warn{background:var(--warn-bg);color:var(--warn);border-color:#d4ae63}.notice.ok{background:var(--ok-bg);color:var(--ok);border-color:var(--ok)}
.ak label{display:block;font-weight:600;margin:14px 0 8px}.ak input:not([type=checkbox]):not([type=radio]):not([type=hidden]),.ak textarea,.ak select{font:inherit;color:var(--ink);border:1.5px solid #8b9dab;border-radius:10px;padding:11px 12px;background:#fff;width:100%;max-width:100%;min-width:0;display:block;margin-top:6px}.ak textarea{resize:vertical}.ak input[type=checkbox],.ak input[type=radio]{width:20px;height:20px;flex-shrink:0;accent-color:var(--petrol)}.ak :focus-visible{outline:3px solid var(--petrol);outline-offset:3px}.ak .next :focus-visible{outline-color:white}.ak button:disabled{opacity:.6;cursor:not-allowed}.ak .btn{white-space:normal;text-align:center}.checklabel{display:flex!important;align-items:center;gap:10px;min-height:44px}.filters{display:grid;grid-template-columns:2fr 1fr 1fr;gap:12px;align-items:end;margin-top:24px}.filters label{margin:0}.filters .checklabel{grid-column:span 2}.opt{display:flex!important;font-weight:400!important;margin:0!important}.quiz legend{font-weight:700;line-height:1.5;padding:0 5px;max-width:100%;overflow-wrap:anywhere}.quiz{margin-bottom:20px;min-width:0}.prose{max-width:none;width:100%}.prose img,.prose video{width:100%;height:auto;max-height:70vh;object-fit:contain;border-radius:12px}.prose figure{margin:20px 0}.prose table{display:block;overflow:auto;max-width:100%}.prose h1{font-size:25px}.prose a,.source-text{overflow-wrap:anywhere}.source-text{font-size:13px}.toc{top:95px}.lessonbar{flex-wrap:wrap}.row.action-wrap{flex-wrap:wrap}.errorlist{color:var(--err)}.helptext{font-size:12px;color:var(--ink-3)}.editor textarea{min-height:80px}.admin-tabs{display:flex;flex-wrap:wrap;gap:8px;margin:24px 0}.criterion{padding:12px 0;border-bottom:1px solid var(--line)}.bubble{padding:16px;border-radius:14px;background:var(--soft);margin:12px 0;max-width:90%;overflow-wrap:anywhere}.bubble.learner{margin-left:auto;background:#eef3fa}.bubble p{margin:4px 0}.certificate{border-bottom:1px solid var(--line);padding:12px 0}.ranking{padding-left:24px}.ranking li{padding:12px 0;border-bottom:1px solid var(--line)}.ranking span,.ranking small{display:block}.login-shell{max-width:1250px;margin:auto;display:grid;grid-template-columns:1.1fr 1fr;gap:60px;padding:90px 40px;align-items:center}.login-shell:before{content:'';position:absolute;inset:80px 3% 3%;z-index:-1;background:radial-gradient(ellipse at top right,#ccf4ee,#e0f2fc 80%);border-radius:40px 40px 40px 120px}.login-brand h1{font-size:clamp(30px,4.2vw,58px);line-height:1.1;letter-spacing:-1.5px}.login-brand p{font-size:18px}.login-brand ul{padding-left:20px;line-height:2}.login-card{padding:36px;box-shadow:0 20px 50px #0d183010}.login-card h2{font-size:28px;line-height:1.2}.login-card .btn{width:100%}.login-card .small{margin-top:22px}.star{width:44px;height:44px}.icb{width:44px;height:44px}.btn.sm{min-height:44px}.av{width:44px;height:44px}.chip{min-height:44px}.app>main{flex:1}.card,.stack,.cols>*,.grid2>*,.grid3>*{min-width:0}pre{white-space:pre-wrap;overflow-wrap:anywhere}blockquote{margin:16px 0;padding-left:16px;border-left:3px solid var(--petrol)}details summary{cursor:pointer;min-height:44px;align-content:center;font-weight:600}section[id]{scroll-margin-top:100px}
@media(max-width:1200px){.hdr{gap:8px;padding:0 16px}.nav{font-size:13px;padding:0 6px}.helper-link{display:none!important}.logo{gap:6px}.logo span{font-size:10px}.wordmark{font-size:29px}}
@media(max-width:900px){.hdr{flex-wrap:wrap;height:auto;min-height:72px;padding-top:8px;padding-bottom:8px}.hnav{order:3;width:100%;justify-content:space-between}.nav{font-size:14px}.login-shell{gap:24px;padding:45px 24px}.cols{grid-template-columns:1fr}.libgrid{grid-template-columns:repeat(2,minmax(0,1fr))}.lesson{grid-template-columns:1fr}.toc{position:static;display:flex;flex-wrap:wrap}.filters{grid-template-columns:1fr 1fr}.filters label:first-child{grid-column:span 2}.filters .checklabel{grid-column:span 1}.next{grid-template-columns:1fr}.next .btn{justify-self:start}.hright{margin-left:auto}}
@media(max-width:599px){.hdr{height:56px;min-height:56px;flex-wrap:nowrap;padding:0 14px}.hnav{display:none}.logo img{height:30px}.wrapc{padding-left:16px;padding-right:16px}.pad{padding-top:24px}.h1{font-size:27px}.hello{display:block}.hello .tag{margin-top:14px}.herosec{padding-top:12px}.herobg{left:6px;right:6px;border-radius:24px 24px 24px 60px}.next{padding:22px;gap:18px}.next h2{font-size:23px}.chipb{font-size:11px;gap:5px}.grid2,.grid3,.libgrid{grid-template-columns:1fr}.card{padding:18px}.prose{padding:22px 18px}.login-shell{grid-template-columns:1fr;padding:26px 18px;gap:20px}.login-brand ul{display:none}.login-brand h1{font-size:34px;margin:22px 0 10px}.login-brand p{font-size:15px}.login-card{padding:24px}.login-card h2{font-size:24px}.tabbar{position:fixed;bottom:0;left:0;right:0;height:78px;display:grid;grid-template-columns:repeat(5,minmax(0,1fr));background:white;border-top:1px solid var(--line);padding:8px 4px max(8px,env(safe-area-inset-bottom));z-index:40}.tabbar a{font-size:10px;text-align:center;align-content:center;min-height:44px;color:var(--ink);text-decoration:none;font-weight:600;overflow-wrap:anywhere}.fab{position:fixed;display:flex;bottom:94px;right:16px;width:56px;height:56px;border-radius:50%;background:var(--navy);color:white!important;align-items:center;justify-content:center;text-decoration:none;font-weight:700;font-size:24px;z-index:35}.footer{padding-bottom:100px}.filters{grid-template-columns:1fr}.filters label:first-child,.filters .checklabel{grid-column:span 1}.plan li{grid-template-columns:24px minmax(0,1fr)}.plan .mins{grid-column:2}.tag{height:auto;min-height:24px;white-space:normal}.source-text{word-break:break-word}.hright{gap:6px}.logo span{font-size:9px}.notice{font-size:14px}.narrow{width:100%}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{animation:none!important;transition:none!important}}
/* The reference hides its prototype header inside mobile frames. The app keeps its real header. */
.ak .hdr{display:flex}
.ak a.av{color:#fff}.ak a.nav{color:var(--ink)}