/* Simple, readable controls shared by catalog, guides and resource pages. */
html{scroll-padding-top:28px}body{font-family:Arial,"Noto Sans",sans-serif;font-size:15px;line-height:1.6}button,input,select,textarea{font-family:inherit}a,button,input,select{touch-action:manipulation}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 var(--green)}[hidden]{display:none!important}
.quick-language-bar{min-height:44px;display:flex;align-items:center;justify-content:flex-end;gap:12px;padding:4px max(20px,calc((100% - 1160px)/2));background:var(--surface);border-bottom:1px solid var(--line);font-size:12px;color:var(--muted)}.quick-language-bar a{display:inline-flex;align-items:center;min-height:36px;padding:2px 16px;border:1px solid var(--green);border-radius:8px;font-size:14px;font-weight:700;color:var(--green);order:-1}.quick-language-bar a:hover{background:var(--soft)}
.site-header{position:relative;top:auto}.header-inner{min-height:76px;padding-top:12px;padding-bottom:12px}.desktop-nav{gap:18px}.desktop-nav .nav-link{font-size:14px;min-height:44px;display:inline-flex;align-items:center}.official-site-message,.notice-bar,.brand small,#search-toggle{display:none}.brand{font-size:25px}.theme-toggle{min-width:44px;min-height:32px}.header-actions .icon-button{width:44px;height:44px}
.main-container{max-width:1200px;padding-top:22px}.catalog-intro{margin:0;padding:0 0 18px;text-align:start}.catalog-intro h1{font:700 clamp(26px,4vw,38px)/1.2 Arial,sans-serif;margin:0;color:var(--text);letter-spacing:-.7px}.main-container .search-panel{display:block;max-width:800px;padding:0;margin:0 0 20px;border:0}.search-panel>label{font-size:14px;color:var(--muted);display:block;margin-bottom:8px}.search-field{height:54px;border-radius:10px;border:1px solid var(--line);background:var(--surface)}.search-field input{font-size:16px;min-width:0;padding:12px}.search-submit{min-height:44px;padding:10px 20px;font-size:15px;border-radius:7px}.search-clear{min-width:40px;min-height:44px}.search-field>svg{flex-shrink:0}
.categories-section{padding:0 0 18px;margin:0}.section-eyebrow{display:none}.category-list{display:flex;flex-wrap:wrap;gap:8px}.category-button{font-size:14px;min-height:44px;border-radius:8px;padding:9px 14px;gap:8px}.category-button svg{width:18px;height:18px}.all-category-browser{margin-top:12px}.all-category-browser summary{font-size:14px;min-height:40px;cursor:pointer}.source-category-list a{font-size:14px;min-height:40px;display:inline-flex;align-items:center}.catalog-toolbar{margin:0 0 18px;align-items:center}.catalog-toolbar h2{font-size:22px;line-height:1.3;margin:0}.catalog-toolbar p{font-size:13px;margin:6px 0 0}.toolbar-actions{gap:10px}.filter-button{min-height:44px;font-size:14px;padding:8px 14px}.sort-control select{font-size:14px;min-height:44px;max-width:200px}.filters-panel{flex-wrap:wrap;gap:16px}.filters-panel>label:not(.checkbox-filter){font-size:14px}.filters-panel input[type=search],.filters-panel select{font:14px/1.5 Arial,sans-serif;min-height:44px;background:var(--surface);color:var(--text);border:1px solid var(--line);border-radius:7px;padding:8px 12px;width:100%;max-width:320px}.filters-panel .checkbox-filter{font-size:14px;min-height:44px}.active-filters button{min-height:40px;font-size:13px}
.resource-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}.resource-card{border-radius:12px;overflow:hidden;box-shadow:none}.card-image-area{aspect-ratio:16/9}.card-image{object-fit:contain;background:var(--soft)}.card-body{padding:18px}.card-provider{font-size:12px;margin-bottom:8px}.card-updated{font-size:12px}.card-title{font:600 18px/1.5 Arial,sans-serif;min-height:0}.card-title>span{-webkit-line-clamp:3}.card-meta{font-size:12px;flex-wrap:wrap;gap:8px}.card-bottom{padding:12px 18px}.card-bottom a{font-size:14px;min-height:40px;display:inline-flex;align-items:center}.provider-destination{font-size:11px}.bookmark-button{width:44px;height:44px}.load-more-area{display:flex;align-items:center;justify-content:center;gap:16px;flex-wrap:wrap;margin:30px 0}.load-more-area button,.load-more-area>a{min-height:46px;font-size:14px}.load-more-area p:empty{display:none}.catalog-faq{margin-top:24px}.catalog-faq summary{min-height:44px;font-size:14px}.catalog-advertisement{margin:28px auto;position:relative;isolation:isolate}.catalog-advertisement-content{overflow:hidden;contain:layout paint;max-width:none}.catalog-advertisement-download{margin:28px auto}.catalog-advertisement-download .catalog-advertisement-content{width:320px;height:50px}.download-ad-slot{display:flow-root;margin-block:0;padding-block:0}
.catalog-language{position:relative;inset:auto;max-width:1160px;margin:10px auto 0;display:flex;justify-content:flex-end;padding-inline:20px}.language-menu{position:relative;font-size:14px;z-index:20}.language-menu>summary{cursor:pointer;border:1px solid var(--line);border-radius:8px;padding:8px 12px;min-height:44px;background:var(--surface);color:var(--text)}.language-menu-panel{position:absolute;inset-inline-end:0;top:100%;width:280px;max-width:calc(100vw - 32px);padding:12px;background:var(--surface);border:1px solid var(--line);border-radius:10px;box-shadow:0 10px 30px #0003}.language-menu input{width:100%;min-height:44px;border:1px solid var(--line);border-radius:6px;color:var(--text);background:var(--soft);padding:10px;font-size:16px;margin-bottom:8px}.language-menu .language-picker{display:block}.language-menu .language-picker>span{display:none}.language-menu select{width:100%;height:250px;max-width:none;border:0;background:var(--surface);color:var(--text);font-size:14px}.language-menu option{padding:8px;min-height:36px}
.article-header-inner{padding-block:15px;gap:18px}.article-header nav{font-size:14px;gap:18px;flex-wrap:wrap}.article-header nav>a{min-height:44px;display:inline-flex;align-items:center}.article-header nav button{min-width:44px;min-height:38px}.article-page{padding-top:28px;font-size:16px;line-height:1.75}.article-breadcrumbs{font-size:13px;margin-bottom:20px}.article-breadcrumbs>span:last-child{max-width:55ch;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.article-hero{grid-template-columns:220px 1fr;gap:30px;margin-bottom:30px}.article-cover{width:220px;height:220px;border-radius:12px}.article-heading h1{font-size:30px;line-height:1.3}.article-meta{list-style:none;padding:0;display:flex;flex-wrap:wrap;gap:8px 16px;font-size:13px}.article-updated{font-size:13px}.article-jump{font-size:14px;gap:8px 16px}.article-jump a{min-height:36px;display:inline-flex;align-items:center}.hero-download{min-height:48px;margin-top:18px;margin-inline-end:20px;font-size:15px;padding:10px 18px}.article-save{font-size:14px;min-height:44px;margin-top:10px}.rating-row{font-size:13px}.rating-stars button{font-size:24px;min-width:32px;min-height:40px;color:var(--muted)}.rating-stars button.selected{color:#d99b16}.article-section h2{font-size:23px;font-weight:650}.article-section h3{font-size:18px}.article-specs{font-size:15px;gap:8px 16px;grid-template-columns:minmax(110px,150px) 1fr}.article-fold{border:1px solid var(--line);padding:14px 18px;border-radius:10px;background:var(--surface)}.article-fold>summary{font-size:17px;font-weight:600;cursor:pointer;min-height:36px;color:var(--text)}.article-picture{max-height:450px;width:auto;max-width:100%;object-fit:contain}.article-picture-cover{max-height:350px}.download-manager-toolbar{gap:12px}.download-manager-toolbar label{font-size:14px}.download-manager-toolbar select{width:100%;max-width:100%;font-size:14px;min-height:48px;white-space:normal}.download-provider-links{display:none}.article-download-group{border:1px solid var(--line);border-radius:10px;padding:20px;background:var(--surface)}.download-part-row{gap:10px}.article-download-link{font-size:15px;line-height:1.5;min-height:48px;padding:10px 0;overflow-wrap:anywhere}.copy-part{min-height:44px;min-width:48px;font-size:13px}.part-check{width:20px;height:20px;flex-shrink:0}.article-password{font-size:14px}.secondary-button,.primary-button{min-height:44px;font-size:14px}.report-problem{display:inline-block;font-size:14px;min-height:44px;color:var(--green);text-decoration:underline}.article-sidebar .sidebar-card h2{font-size:22px}.sidebar-card dl{font-size:14px}.article-comment-form>label,.article-comment-form p{font-size:14px}.article-comment-form textarea{font-size:16px}.post-comment{font-size:15px}.comments-notice{font-size:14px}.article-footer{font-size:13px}.article-footer nav{flex-wrap:wrap}.discovery-page{font:15px/1.7 Arial,sans-serif}.discovery-header nav a{font-size:14px;min-height:44px;display:inline-flex;align-items:center}.discovery-hero h1{font-family:Arial,sans-serif}.discovery-lead{max-width:65ch}.advertising-details{font-size:12px}.site-footer p,.footer-right{font-size:13px}
@media(max-width:900px){.resource-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.desktop-nav{gap:10px}.article-header nav{gap:10px}.article-layout{display:block}.article-sidebar{display:none}.article-hero{grid-template-columns:160px 1fr}.article-cover{width:160px;height:160px}.article-heading h1{font-size:25px}.catalog-language{margin-top:6px}.header-inner{min-height:68px}}
@media(max-width:600px){.quick-language-bar{justify-content:space-between;padding-inline:18px}.main-container{margin-inline:18px;padding-top:18px}.catalog-intro{padding-bottom:14px}.catalog-intro h1{font-size:28px}.search-field>svg{display:none}.search-field input{padding:10px}.search-submit{padding-inline:14px}.header-inner{margin-inline:18px}.categories-section{padding-bottom:12px}.category-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:6px;overflow:visible;padding-bottom:2px}.category-button{justify-content:center;font-size:14px;padding:9px 8px;min-width:0;width:100%}.category-button svg{display:none}.all-category-browser{margin-top:6px}.all-category-browser summary{font-size:13px}.catalog-toolbar{flex-wrap:wrap;gap:10px;margin-bottom:15px}.catalog-toolbar>div:first-child{width:100%}.catalog-toolbar h2{font-size:21px}.toolbar-actions{width:100%;justify-content:space-between;margin:0}.filter-button{font-size:14px;padding:8px 12px}.sort-control select{font-size:13px}.resource-grid{grid-template-columns:minmax(0,1fr);gap:18px}.card-title{font-size:19px}.card-type{font-size:11px}.card-body{padding:16px}.card-meta{margin-top:12px}.article-header-inner{padding:12px 18px;gap:10px}.article-header nav{gap:8px 14px;font-size:13px}.article-page{padding:22px 18px}.article-hero{grid-template-columns:80px 1fr;gap:16px}.article-cover{width:80px;height:80px;padding:4px}.article-heading h1{font-size:23px}.article-heading{min-width:0}.article-updated{font-size:12px}.article-meta{font-size:12px}.hero-download{width:100%;margin-inline-end:0}.article-jump{display:none}.article-specs{font-size:14px;grid-template-columns:110px minmax(0,1fr)}.article-specs dd{overflow-wrap:anywhere}.article-section h2{font-size:21px}.article-download-group{padding:14px}.article-download-link{font-size:14px}.download-part-row{flex-wrap:wrap}.copy-part{margin-inline-start:auto}.article-password{gap:10px}.related-grid{grid-template-columns:1fr}.catalog-language{margin:4px 0 0;padding-inline:18px}.catalog-language .language-menu>summary{min-height:36px;padding:5px 10px;font-size:13px}.article-header .language-menu-panel{inset-inline-start:0;inset-inline-end:auto}.card-bottom a{font-size:14px}.provider-destination{font-size:11px}}
/* Keep the issued creative at its exact size; centered overflow uses the page gutters. */
@media(max-width:350px){.catalog-advertisement,[dir=rtl] .catalog-advertisement{left:auto;right:auto;transform:none;width:100%;max-width:none}.catalog-advertisement-content{width:300px;max-width:none}.catalog-advertisement-download .catalog-advertisement-content{width:320px}.quick-language-bar span{font-size:11px}}

.quick-language-bar{justify-content:space-between;direction:ltr}.quick-language-bar .language-menu{margin-inline-start:auto}.quick-language-bar .language-menu>summary{font-size:13px;min-height:36px;padding:5px 12px}.quick-language-bar .language-menu-panel{z-index:30;inset-inline-end:0;inset-inline-start:auto;text-align:start;direction:ltr}.quick-language-bar .language-picker{padding:0;border:0;background:none}
.catalog-results-layout{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}.catalog-results-layout>.resource-grid{display:contents}.catalog-results-layout>.catalog-advertisement{grid-column:1/-1;margin:10px auto}.catalog-results-layout:has(.resource-card:nth-child(4))>.catalog-advertisement:not(.catalog-advertisement-feed){grid-row:2}.all-category-browser{padding:8px 14px;border-radius:8px}.all-category-browser summary{min-height:30px}.site-footer{margin-top:0}
@media(max-width:900px){.catalog-results-layout{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:600px){.catalog-results-layout{grid-template-columns:minmax(0,1fr);gap:18px}.catalog-results-layout:has(.resource-card:nth-child(4))>.catalog-advertisement:not(.catalog-advertisement-feed){grid-row:4}.main-container .catalog-intro h1{font-size:27px}.article-heading .article-meta{margin-bottom:5px}.article-heading .rating-row{flex-wrap:wrap;gap:0 10px}.article-heading .rating-stars button{min-width:27px}.article-heading .hero-download{font-size:14px;padding-inline:10px}.quick-language-bar{padding-inline:18px}}

.article-header .article-header-inner>div>small{display:none!important}.article-page .article-hero{display:grid;grid-template-columns:220px minmax(0,1fr);gap:28px}.article-page .article-cover{order:0}.article-page .article-heading{order:1}.article-header .article-header-inner nav{display:flex;flex-wrap:wrap;align-items:center}
@media(max-width:600px){.article-header .article-header-inner{display:flex;flex-wrap:wrap;padding:10px 18px;gap:4px}.article-header .article-header-inner nav{display:flex;flex-wrap:nowrap;justify-content:space-between;gap:6px;width:100%;font-size:12px;overflow-x:auto}.article-header nav a{flex:none}.article-page .article-hero{grid-template-columns:minmax(0,1fr);padding:18px;gap:14px}.article-page .article-cover{width:64px;height:64px;order:0;margin:0}.article-page .article-heading{order:1}.article-heading h1{font-size:23px}.article-page .article-heading .article-updated{margin-top:0}.article-page .article-heading .hero-download{margin-top:12px}}

/* Continuous browsing: progress only, with an explicit retry on network failure. */
/* The account-issued Social Bar frame keeps its own creative and close controls.
   Put its outer frame above the page in normal flow without moving/reloading it. */
html:has(>iframe[id^="container-c5effcb36af51cc401761f5d117cc505"]){display:flex;flex-direction:column}
html:has(>iframe[id^="container-c5effcb36af51cc401761f5d117cc505"])>body{width:100%;min-width:0;flex:none;isolation:isolate}
html>iframe[id^="container-c5effcb36af51cc401761f5d117cc505"]{position:relative!important;inset:auto!important;order:-1;align-self:flex-end;flex:none;margin:8px 10px 8px auto!important}
.catalog-results-layout>.catalog-advertisement-feed{display:flex;grid-row:var(--feed-ad-row-3);margin:16px auto;min-height:72px}
/* Each new ten-card group starts after its full-width advertisement row. */
.catalog-results-layout:has(>#catalog-feed-ad-template)>.resource-grid>.resource-card:nth-child(10n+1):not(:first-child){grid-column:1}
@media(max-width:900px){.catalog-results-layout>.catalog-advertisement-feed{grid-row:var(--feed-ad-row-2)}}
@media(max-width:600px){.catalog-results-layout>.catalog-advertisement-feed{grid-row:var(--feed-ad-row-1)}}
.load-more-area{min-height:64px;flex-direction:column;gap:8px;margin:24px 0}.load-more-area #loaded-count{margin:0;font-size:14px;color:var(--muted);text-align:center}.feed-spinner{width:22px;height:22px;border:2px solid var(--line);border-top-color:var(--green);border-radius:50%;animation:feed-spin .8s linear infinite}@keyframes feed-spin{to{transform:rotate(360deg)}}@media(prefers-reduced-motion:reduce){.feed-spinner{animation:none}}
.article-preview{margin:20px 0}.article-video-embed{display:block;width:100%;height:auto;aspect-ratio:16/9;border:0;background:#111;direction:ltr}.article-preview figcaption{margin-top:8px;font-size:14px;color:var(--muted)}
@media(min-width:601px){.article-page .article-hero>:is(.article-cover,.article-cover-slot){grid-column:1;grid-row:1}.article-page .article-hero>.article-heading{grid-column:2;grid-row:1}}
.article-page .article-hero:not(:has(>.article-cover,>.article-cover-slot)){grid-template-columns:minmax(0,1fr)}.article-page .article-hero:not(:has(>.article-cover,>.article-cover-slot))>.article-heading{grid-column:1/-1}
.course-cover-frame{display:block;position:relative;width:100%;height:100%;overflow:hidden;background:var(--soft)}.course-cover-frame>img{display:block;width:100%;height:100%;object-fit:contain}.course-cover-frame[data-cover-kind=generated]>img{object-fit:cover}.course-cover-title{position:absolute;z-index:1;left:4%;bottom:7%;width:42%;padding:8px;color:#fff;background:#071a32d9;border-radius:4px;font:700 14px/1.22 Arial,sans-serif;text-align:start;overflow-wrap:anywhere;pointer-events:none}.course-cover-frame[data-cover-long=true] .course-cover-title{font-size:11.5px;line-height:1.18}.course-cover-credit{position:absolute;z-index:1;top:6%;left:4%;padding:4px 7px;border-radius:4px;color:#fff;background:#071a32d9;font:600 10px/1.2 Arial,sans-serif;pointer-events:none}.course-cover-title[hidden],.course-cover-credit[hidden]{display:none}.article-cover-slot{max-width:100%}.article-cover-frame{width:300px;max-width:100%;height:300px}.article-cover-frame[data-cover-kind=generated]{height:auto;aspect-ratio:16/9}.article-picture-cover-slot{width:500px;max-width:100%;margin:18px 0 25px}.article-picture-cover-frame{aspect-ratio:16/9;height:auto}.course-cover-frame .article-cover,.course-cover-frame .article-picture-cover{margin:0;padding:0;border-radius:0;max-height:none;width:100%;height:100%}.article-picture-cover-frame>img,.article-cover-frame[data-cover-kind=generated]>img{position:absolute;inset:0}.course-cover-frame[data-cover-kind=none] .course-cover-title{width:90%;color:var(--text);background:none;font-size:14px}
@media(max-width:900px){.article-cover-frame{width:230px;height:230px}.article-cover-frame[data-cover-kind=generated]{height:auto}}@media(max-width:600px){.article-cover-frame{width:100%;height:auto;aspect-ratio:16/9}.article-cover-frame>img{position:absolute;inset:0}.course-cover-title{font-size:15px}.course-cover-frame[data-cover-long=true] .course-cover-title{font-size:12px}}