/* DGNL.NET V3 — PDF-first design system, folder navigation, purposeful motion. */
:root{--ink:#122b40;--ink-dark:#0a1d31;--text:#192a3e;--muted:#64758a;--line:#e3eaf0;--paper:#fff;--bg:#f6f8fc;--lime:#c4f276;--cyan:#a3e9e4;--orange:#ffbd86}
body{background:var(--bg);color:var(--text)}
.shell{max-width:1280px;width:calc(100% - 64px);margin-inline:auto}
.site-header{border-bottom:1px solid #eaf0f3;box-shadow:0 6px 28px #0d2c4b08;background:#fffffff0;backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);position:relative;z-index:40}
.site-header .nav{min-height:80px}
.brand-symbol{background:#102a41;border-radius:14px;box-shadow:0 7px 14px #102a4130}
.brand-type,.brand-type>span{color:#183047}
.brand-type>span{color:#389a85}
.brand-type small{color:#718698}
.nav nav{gap:26px}
.nav nav a{color:#4b5d71;transition:color .18s}
.nav nav a:hover{color:#087d6d}
.nav nav .nav-cta{display:inline-flex;align-items:center;gap:10px;color:#112e40;background:#d5f4a1;border:1px solid #caee96;border-radius:13px;padding:13px 18px;font-weight:800;box-shadow:0 5px 15px #7eb03a14}
.nav nav .nav-cta:hover{color:#112e40;background:#c7ee86;transform:translateY(-1px)}
.btn{border-radius:12px;font-weight:800;letter-spacing:-.2px;transition:transform .22s cubic-bezier(.2,.8,.2,1),box-shadow .22s,border-color .22s,background .22s}
.btn:hover{transform:translateY(-2px)}
.btn:active{transform:translateY(0) scale(.985)}
:focus-visible{outline:3px solid #3d9b89;outline-offset:3px}

/* Homepage: the printed exam paper is the hero, not the exam room. */
.hero-v3{background:radial-gradient(ellipse at 70% 70%,#285b68a6,transparent 48%),linear-gradient(112deg,#10253c 3%,#163c4b 59%,#123d4b 100%);position:relative;isolation:isolate;overflow:hidden}
.hero-v3:before{content:"";position:absolute;inset:0;opacity:.14;pointer-events:none;background-image:radial-gradient(#b7f3dd 1px,transparent 1px);background-size:30px 30px;mask-image:linear-gradient(90deg,transparent 30%,black)}
.hero-v3 .hero-grid{min-height:575px;display:grid;grid-template-columns:1.08fr .92fr;gap:36px;align-items:center}
.hero-v3 .hero-copy{padding:73px 0 67px}
.hero-v3 .eyebrow{font-size:11px;letter-spacing:2px;color:#caefaa}
.hero-v3 h1{font-size:clamp(40px,4.3vw,64px);letter-spacing:-2.9px;line-height:1.19;margin:20px 0 21px;color:#fff}
.hero-v3 h1 em{color:#c9f48a}
.hero-v3 .hero-copy>p{font-size:14px;line-height:2;max-width:570px;color:#c8dbe1}
.hero-v3 .hero-actions{margin-top:33px;display:flex;gap:12px;flex-wrap:wrap}
.hero-v3 .btn-lime{background:#d0f488;color:#172c3d;box-shadow:0 12px 25px #a1d2512b}
.hero-v3 .btn-ghost{color:#f0f8f9;border:1px solid #88aabb75;background:#ffffff12}
.hero-metrics{display:flex;align-items:center;gap:29px;margin-top:42px;max-width:590px}
.hero-metrics>span{display:flex;flex-direction:column;gap:4px;min-width:0}
.hero-metrics strong{font:800 25px 'DM Sans',sans-serif;color:#f3fcfa}
.hero-metrics small{font-size:10px;line-height:1.6;color:#bbd0d9;white-space:nowrap}
.hero-metrics>span+span{border-left:1px solid #bcd4e332;padding-left:27px}
.hero-v3-visual{position:relative;min-height:490px;display:flex;align-items:center;justify-content:center;transform:translateY(2px)}
.hero-glow{position:absolute;width:450px;height:410px;border-radius:50%;background:#7de1af2b;filter:blur(65px)}
.hero-pdf-sheet{position:absolute;width:min(340px,80%);height:434px;border-radius:13px;background:#fff;box-shadow:0 23px 55px #081e3670;overflow:hidden}
.hero-pdf-sheet.back{transform:rotate(12deg) translate(36px,7px);background:#dbedeb;border:8px solid #e8f5ec;opacity:.72}
.hero-pdf-sheet.front{transform:rotate(-6deg) translate(-3px,-1px);padding:29px 28px 18px;animation:hero-paper-float 6s ease-in-out infinite;color:#1a3144}
.hero-sheet-header{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid #e4eded;padding-bottom:13px;font-weight:900;font-family:'DM Sans',sans-serif;color:#153c4b;font-size:21px;letter-spacing:-1px}
.hero-sheet-header b{color:#128476;font-size:10px;letter-spacing:1px}
.hero-sheet-tag{display:inline-block;margin-top:29px;color:#218979;font-size:9px;font-weight:900;letter-spacing:1.5px}
.hero-pdf-sheet.front>strong{display:block;font-size:20px;margin-top:11px;line-height:1.48;letter-spacing:-.8px}
.hero-sheet-rule{height:1px;background:#e2ecef;margin:22px 0}
.hero-sheet-question{color:#1c4056;font-weight:900;font-size:11px}
.hero-sheet-question span{font-weight:500;margin-left:8px;color:#6d8090}
.hero-sheet-line{height:7px;background:#e9f0f0;border-radius:4px;width:100%;margin-top:13px}
.hero-sheet-line.short{width:69%;margin-top:8px}
.hero-sheet-choices{display:flex;gap:13px;margin-top:21px}
.hero-sheet-choices span{border:1px solid #d9e8e6;width:28px;height:28px;display:grid;place-items:center;border-radius:50%;color:#538078;font-size:10px;font-weight:900}
.hero-sheet-footer{position:absolute;bottom:14px;left:28px;right:28px;border-top:1px solid #eaf1f0;padding-top:12px;color:#90a4ab;font-size:8px;font-weight:900;letter-spacing:1px}
.hero-floating-tag{position:absolute;z-index:3;border:1px solid #efffffe8;border-radius:11px;background:#fffffff5;box-shadow:0 11px 30px #062b405b;padding:14px 18px;color:#194359;font-size:12px;font-weight:900;letter-spacing:.2px;animation:badge-float 5s ease-in-out infinite}
.hero-floating-tag.top{top:60px;right:0;transform:rotate(4deg)}
.hero-floating-tag.bottom{bottom:75px;left:0;transform:rotate(-4deg);animation-delay:-2s;background:#d4f6bb}
@keyframes hero-paper-float{0%,100%{transform:rotate(-6deg) translate(-3px,0)}50%{transform:rotate(-5deg) translate(-3px,-10px)}}
@keyframes badge-float{0%,100%{translate:0 0}50%{translate:0 -8px}}
.benefits-v3{margin-block:-22px 0;position:relative;z-index:3;background:#fff;border:1px solid #e5ecef;border-radius:18px;box-shadow:0 17px 39px #0c2e4c0c;display:grid;grid-template-columns:repeat(3,1fr);gap:0;padding:25px 19px}
.benefits-v3>div{padding:8px 24px}
.benefits-v3>div+div{border-left:1px solid #e8eef2}
.benefits-v3 strong{color:#21384b}
.benefits-v3 p{color:#748696}
.benefits-v3 .benefit-icon{color:#258472;background:#eaf9e5;border-radius:10px;font:800 13px 'DM Sans',sans-serif;padding:10px;display:inline-flex;align-items:center;justify-content:center}

/* PDF-first search layout with SQL parent-child folders. */
.catalog-section{padding-top:84px;padding-bottom:90px;background:transparent}
.catalog-section .section-head{margin-bottom:25px}
.catalog-section .section-head h2{font-size:clamp(25px,2.8vw,38px);letter-spacing:-1.3px;color:#172d42}
.section-kicker{color:#258e77}
.catalog-section .section-head p{color:#6b7e8e}
.live-pill{background:#effbf4;border:1px solid #d5f2db;color:#18856b}
.live-pill span{background:#32bd89}
.search-box{background:#fff;border:1px solid #e0eaf1;border-radius:17px;padding:11px;box-shadow:0 12px 24px #0b2b4410;display:flex;align-items:center;gap:12px}
.search-field{flex:1;min-width:0}
.search-field input{font-family:inherit;font-size:13px;color:#223b50}
.search-field input::placeholder{color:#9aabba}
.search-box .btn-dark{background:#172f44;padding-inline:22px;white-space:nowrap}
.filter-line{display:flex;gap:9px;margin:19px 0 27px;overflow-x:auto;padding:3px 1px 8px;scrollbar-width:thin}
.filter-chip{background:white;border:1px solid #e0e9ef;border-radius:100px;padding:10px 17px;color:#607589;font:700 11px 'Be Vietnam Pro',sans-serif;white-space:nowrap;transition:.2s;cursor:pointer}
.filter-chip:hover{border-color:#6bb69d;color:#207969;background:#f7fdf8}
.filter-chip.active{color:#133f37;background:#dcf5c4;border-color:#c9e6b4;box-shadow:0 5px 12px #4d874b0c}
.filter-chip small{color:inherit;opacity:.68;margin-left:4px}
.library-layout{display:grid;grid-template-columns:276px minmax(0,1fr);align-items:start;gap:26px}
.folder-panel{background:#fff;border:1px solid #e0eaf0;border-radius:18px;box-shadow:0 9px 30px #18395009;overflow:hidden;position:sticky;top:24px}
.folder-panel-head{padding:22px 20px 14px;border-bottom:1px solid #eef1f5;background:linear-gradient(130deg,#f7fafb,#fff)}
.folder-panel-head .section-kicker{font-size:9px;letter-spacing:1.8px}
.folder-panel-head h3{font-size:17px;letter-spacing:-.6px;margin:7px 0 0;font-weight:900;color:#173348}
.folder-panel-head h3 span{display:inline-block;font-size:9px;background:#eaf3e4;color:#42816a;padding:5px 7px;border-radius:7px;letter-spacing:1px;vertical-align:middle}
.folder-list{max-height:620px;overflow:auto;scrollbar-color:#e1e9eb transparent;scrollbar-width:thin;padding:12px}
.folder-root,.folder-leaf,.folder-view,.folder-node summary{font-size:11px;color:#61788b;border-radius:9px;line-height:1.7;text-decoration:none}
.folder-root{display:flex;gap:10px;align-items:center;padding:12px;font-weight:800;margin-bottom:5px;color:#2e4d61}
.folder-root>span{font-size:17px;color:#178a77}
.folder-node{margin:3px 0}
.folder-node summary{cursor:pointer;display:flex;align-items:center;gap:8px;padding:10px 7px;list-style:none;transition:background .2s,color .2s}
.folder-node summary::-webkit-details-marker{display:none}
.folder-node summary:hover,.folder-leaf:hover,.folder-root:hover{background:#f4f8f8;color:#187d6e}
.folder-chevron{font-size:17px;line-height:1;color:#a5b5ba;transition:transform .2s;display:inline-block;width:12px;flex:none}
.folder-node[open]>summary .folder-chevron{transform:rotate(180deg)}
.folder-symbol{font-size:13px;flex:none;color:#4aa697}
.folder-name{overflow:hidden;text-overflow:ellipsis;min-width:0;flex:1;display:block;font-weight:700}
.folder-node summary small,.folder-leaf small{font:700 10px 'DM Sans',sans-serif;border-radius:6px;background:#f1f5f7;color:#78909c;padding:5px 6px;margin-left:auto;min-width:22px;text-align:center}
.folder-children{border-left:1px dashed #dbe9e4;margin-left:13px;padding-left:10px;animation:folder-open .22s ease-out}
.folder-node.depth-2 .folder-children,.folder-node.depth-3 .folder-children{margin-left:7px;padding-left:7px}
@keyframes folder-open{from{opacity:.35;transform:translateY(-4px)}to{opacity:1;transform:translateY(0)}}
.folder-view{display:flex;align-items:center;justify-content:space-between;gap:8px;color:#248e79;font-size:10px;font-weight:800;padding:7px 10px;margin:1px 0}
.folder-view:hover{background:#eafaec}
.folder-view span{font-size:13px}
.folder-leaf{display:flex;align-items:center;gap:7px;padding:9px 8px;transition:background .18s}
.folder-leaf .folder-symbol{width:13px;text-align:center}
.folder-leaf.is-current,.folder-root.is-current,.folder-view.is-current{background:#e6f7e4;color:#147565}
.folder-panel-foot{padding:15px 20px 18px;background:#f9fbfc;border-top:1px solid #edf1f3;font-size:10px;color:#8a9aa7;line-height:1.8}
.folder-mobile-toggle{display:none}
.library-results{min-width:0}
.results-toolbar{min-height:32px;display:flex;justify-content:space-between;align-items:center;gap:15px;margin:3px 0 17px}
.results-status{font-size:12px;font-weight:800;color:#284359}
.results-status.error{color:#b53c3c}
.results-type{font-size:10px;font-weight:700;color:#8699a8}
.library-results .paper-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.paper-card{padding:0;min-height:0;overflow:hidden;border-radius:17px;border:1px solid #e0e8f0;display:flex;flex-direction:column;background:#fff;box-shadow:0 6px 17px #203b5a09;transform:translateZ(0);transition:border-color .22s,box-shadow .22s,transform .23s cubic-bezier(.25,.8,.25,1)}
.paper-card:hover{transform:translateY(-5px);border-color:#acdac4;box-shadow:0 22px 37px #183b5820}
.card-visual{position:relative;display:flex;justify-content:center;align-items:flex-end;height:135px;background:radial-gradient(ellipse at 70% 0,#e6faf0,transparent 65%),linear-gradient(130deg,#e6f1f3,#e6edf5);overflow:hidden;border-bottom:1px solid #e8eff0}
.card-visual:before{content:"";height:165px;width:165px;border:1px solid #c4dad7;border-radius:50%;position:absolute;top:-92px;right:-30px}
.mini-paper{background:#fff;position:relative;top:14px;width:150px;height:134px;transform:rotate(-5deg);box-shadow:0 9px 30px #2241582a;border:1px solid #e0eae9;border-radius:5px;padding:16px 13px}
.mini-paper-title{font:900 12px 'DM Sans',sans-serif;border-bottom:1px solid #dcece6;padding-bottom:9px;color:#153d4e}
.mini-paper-title span{color:#3aab8f}
.mini-paper-line{height:5px;background:#e6edf0;margin-top:9px;border-radius:5px}
.mini-paper-line.x2{width:77%}.mini-paper-line.x3{width:91%}
.mini-paper-options{margin-top:13px;font-size:7px;font-weight:800;color:#7e9b95}
.mini-pdf-label,.mini-format{position:absolute;z-index:2;color:#235b54;background:#fff;padding:7px 10px;border-radius:7px;font-weight:900;font-size:9px;letter-spacing:.7px;box-shadow:0 3px 14px #294c6316}
.mini-pdf-label{left:17px;top:16px;background:#d5f2a8;color:#35642e}
.mini-format{right:15px;bottom:14px}
.card-content{flex:1;display:flex;flex-direction:column;padding:19px 20px 16px;min-height:200px}
.paper-card .card-top{justify-content:space-between;gap:8px}
.paper-card .pill{padding:6px 8px;font-size:9px;background:#e9f7e7;color:#31816c}
.paper-card .card-type{font-size:9px;color:#91a3ac;font-weight:800}
.paper-card h3{margin:14px 0 9px;font-size:14px;line-height:1.62;letter-spacing:-.4px;color:#213a4d;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.paper-card p{font-size:10px;line-height:1.65;color:#8395a4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.paper-card .card-bottom{padding-top:15px;border-color:#edf2f5;margin-top:auto}
.paper-card .card-bottom>span:first-child{font-size:10px;color:#8094a4}
.paper-card .card-cta{font-size:10px;color:#118678;font-weight:900}
.card-skeleton{border:1px solid #e3ebef;background:#fff;overflow:hidden;border-radius:17px;padding-bottom:22px}
.card-skeleton>div{height:140px;background:#eaf0f3;animation:skeleton 1.3s ease-in-out infinite alternate}
.card-skeleton>span{display:block;background:#e9eff1;height:10px;border-radius:30px;margin:18px 20px 0;animation:skeleton 1.3s ease-in-out infinite alternate}
.card-skeleton>span:nth-child(3){width:72%}.card-skeleton>span:nth-child(4){width:48%}
@keyframes skeleton{to{opacity:.45}}
.load-more-wrap{margin-top:26px}
.load-more-wrap .btn-outline{border:1px solid #d9e6e6;background:#fff;color:#2a5661}
.category-section{background:#f0f5f8}
.category-card,.editorial-card{border-radius:17px;transition:transform .22s,box-shadow .22s,border-color .22s}
.category-card:hover,.editorial-card:hover{transform:translateY(-5px);box-shadow:0 20px 34px #17374b14;border-color:#c2dcd3}
.wide-banner-v3{background:#142f42;color:white}
.wide-banner-v3 .section-kicker{color:#c8f28c}
.wide-banner-v3 h2 em{color:#c7f087}
.footer{background:#0f2737}
.footer a:hover{color:#d9f5a0}

/* Category pages, also display D1 folders. */
.category-v3{padding-top:38px;padding-bottom:74px}
.category-v3 .breadcrumbs{color:#70899a}
.category-v3 .breadcrumbs a{color:#247c71}
.category-heading{max-width:860px;padding:32px 0 14px}
.category-heading h1{font-size:clamp(27px,3vw,39px);letter-spacing:-1.3px;line-height:1.4;color:#172f42}
.category-heading>p{color:#768a9a;line-height:1.9}
.category-v3 .category-tabs{flex-wrap:wrap;margin:16px 0 27px;gap:9px}
.category-v3 .category-tabs a{border-radius:30px;font-size:11px}
.category-v3 .category-results{grid-template-columns:repeat(2,minmax(0,1fr))}
.category-v3 .pagination{margin-top:27px;display:flex;justify-content:center;gap:12px}
.category-v3 .category-intro{margin-top:46px;border-radius:17px;padding:22px 28px;background:#fff;border:1px solid #e4edf0}

/* Detail page: download and preview first, practice link only on detail page. */
.detail-hero-v3{background:radial-gradient(ellipse at 90% 45%,#2d6572aa,transparent 50%),linear-gradient(125deg,#112b42,#214b55);padding-top:32px;padding-bottom:64px}
.detail-hero-v3 .detail-grid{grid-template-columns:minmax(0,1fr) 310px;gap:65px;padding-top:36px}
.detail-hero-v3 .detail-copy h1{font-size:clamp(29px,3vw,43px);letter-spacing:-1.2px;line-height:1.4;margin:19px 0}
.detail-hero-v3 .detail-copy>p{font-size:13px;line-height:1.85;color:#c9dce1;max-width:720px}
.detail-hero-v3 .detail-meta{margin-top:26px;display:flex;flex-wrap:wrap;gap:9px}
.detail-hero-v3 .detail-meta span{border:1px solid #b4d6d64a;background:#ffffff0d;border-radius:8px;padding:8px 11px;font-size:10px;color:#d8eeee}
.detail-hero-v3 .download-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:27px}
.detail-hero-v3 .download-actions .btn{font-size:12px;padding:15px 20px;border-radius:12px}
.detail-hero-v3 .download-actions .btn-lime{background:#c8f18a;color:#18394a}
.detail-hero-v3 .download-actions .btn-white{background:#f8fcfc;color:#2d4352}
.detail-hero-v3 .download-note{color:#c4dce1;font-size:10px;line-height:1.8;margin-top:14px}
.detail-hero-v3 .download-note.error{color:#ffad9b}.detail-hero-v3 .download-note.success{color:#d0fa8e}
.detail-preview-jump{display:inline-flex;gap:12px;align-items:center;color:#d5f29a;font-weight:800;font-size:11px;margin-top:19px;text-decoration:none}
.detail-preview-jump:hover{color:#fff}
.detail-aside-v3{background:#fff;min-height:360px;height:auto;padding:21px 23px 14px;border:1px solid #d0e6e4;color:#193b4b;box-shadow:17px 23px 50px #06213351;border-radius:12px;transform:rotate(3deg);position:relative;overflow:hidden}
.detail-aside-v3:before{content:"";position:absolute;width:15px;height:100%;background:#d0ed9b;left:0;top:0}
.detail-aside-v3 .aside-title{padding-left:12px;color:#143f4b}
.detail-aside-v3 .aside-title span:last-child{color:#209d84}
.detail-aside-v3 .aside-category{color:#26887a;font-weight:900;font-size:10px;margin-top:45px}
.detail-aside-v3>strong{display:block;line-height:1.5;font-size:21px;letter-spacing:-.4px;max-height:133px;overflow:hidden}
.detail-aside-v3 .aside-lines{margin-top:23px}
.detail-aside-v3 .aside-answers{display:flex;gap:16px;margin-top:20px;font-size:12px;color:#66978d}
.detail-aside-v3 .aside-answers span{border:1px solid #d6e4e1;border-radius:50%;width:22px;height:22px;display:grid;place-items:center}
.detail-aside-v3 .aside-stamp{position:absolute;bottom:0;left:0;right:0;background:#f4f9f8;border-top:1px solid #e5efed;text-align:center;color:#61928c;font-size:9px;font-weight:900;letter-spacing:1px;padding:15px 12px}
.detail-bottom-v3{grid-template-columns:minmax(0,1fr) 290px;align-items:start;gap:27px;padding-block:44px 80px}
.detail-bottom-v3 .detail-main-col{min-width:0}
.detail-bottom-v3 .detail-panel{border:1px solid #e2e9ef;border-radius:17px;background:#fff;box-shadow:0 5px 25px #18364b07;padding:26px 30px;margin-bottom:21px}
.detail-bottom-v3 .detail-panel h2{font-size:22px;letter-spacing:-.8px;margin-top:8px}
.detail-bottom-v3 .detail-panel>p{font-size:12px;line-height:1.9;color:#657c8a}
.detail-bottom-v3 .right-panel{position:sticky;top:20px}
.detail-bottom-v3 .practice-card{background:#ebf6f4;border:1px solid #d3eae4;border-radius:17px;box-shadow:0 7px 23px #12364e09}
.detail-bottom-v3 .practice-card h3{color:#163447}
.detail-bottom-v3 .practice-card .btn-dark{background:#16384a}
.detail-bottom-v3 .side-notes{border-radius:16px;border:1px solid #e4ebf1;background:#fff;padding:22px;margin-top:16px}
.detail-bottom-v3 .side-notes p{font-size:10px;color:#6a8090;line-height:1.7}
.side-back{display:block;font-size:11px;font-weight:800;margin-top:18px;color:#198575}
.document-preview{scroll-margin-top:25px}
.preview-heading{display:flex;justify-content:space-between;gap:16px;align-items:flex-start}
.preview-heading>div p{font-size:11px;color:#8a9baa;margin:8px 0 19px}
.preview-document-tag{font-size:9px;font-weight:900;color:#358877;background:#edfae8;padding:10px;border-radius:8px;white-space:nowrap}
.preview-paper{background:#fff;border:1px solid #e3eaf0;box-shadow:0 10px 24px #18354d0d;max-width:610px;margin:auto;padding:32px 34px 25px;min-height:260px;border-radius:4px;color:#273e51;overflow:hidden}
.preview-paper-head{display:flex;justify-content:space-between;gap:10px;align-items:center;border-bottom:2px solid #dbede6;padding-bottom:12px;font-size:12px;font-weight:900}
.preview-paper-head>b{color:#419583;font-size:9px;letter-spacing:1px}
.preview-paper>h3{font-size:17px;line-height:1.6;letter-spacing:-.3px;margin:22px 0 8px}
.preview-paper-info{font-size:10px!important;color:#8397a4!important;margin-bottom:22px}
.preview-question{border-top:1px solid #e9eef0;padding:18px 0 15px}
.preview-no{display:inline-block;color:#167a6b;background:#e9f6e5;font-size:10px;font-weight:900;padding:6px 8px;border-radius:6px}
.preview-question-title{font-size:11px;line-height:1.9;font-weight:700;margin:12px 0 11px}
.preview-choices{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:7px}
.preview-choice{border:1px solid #e6ebee;border-radius:8px;display:flex;align-items:flex-start;gap:7px;font-size:10px;line-height:1.7;padding:9px 10px;min-width:0}
.preview-choice b{color:#3f8775;flex:none}
.preview-choice span{overflow-wrap:anywhere}
.preview-img{display:block;max-height:240px;max-width:100%;object-fit:contain;margin:8px auto 12px}
.preview-group{padding:10px 12px;background:#f3f9f6;margin:13px 0;border-radius:8px;font-size:10px;line-height:1.85}
.preview-group p{margin:3px 0}
.preview-write-line{font-size:11px;color:#9ca8b4}
.preview-blur-notice{text-align:center;font-size:10px;color:#6f8b97;border-top:1px dashed #d9e6e9;padding-top:17px;margin-top:10px}
.preview-foot{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-top:20px;flex-wrap:wrap}
.preview-foot span{color:#899ca6;font-size:10px;line-height:1.7}
.preview-foot .btn{font-size:11px;padding:12px 16px}
.preview-loading,.preview-error{min-height:200px;display:flex;justify-content:center;align-items:center;gap:12px;color:#748c95;font-size:11px;text-align:center}
.preview-spinner{width:18px;height:18px;border:2px solid #e3eeee;border-top-color:#44a28c;border-radius:50%;animation:spin .75s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
/* Printed pages must not have footer or page numbers. */
.pdf-page-foot,.pdf-cover-label{display:none!important}
.pdf-page-top{top:31px;left:38px;right:38px;border-bottom:1px solid #dcece6;padding-bottom:12px}

/* Motion is progressive; all content remains readable without JS. */
.ux-reveal{opacity:1;transform:none}
.ux-reveal.is-visible{animation:ux-enter .55s cubic-bezier(.18,.8,.22,1) both}
@keyframes ux-enter{from{opacity:.65;translate:0 12px}to{opacity:1;translate:0 0}}
@media(max-width:1140px){.library-layout{grid-template-columns:242px minmax(0,1fr);gap:17px}.hero-v3 .hero-grid{grid-template-columns:1fr .85fr}.hero-pdf-sheet{height:403px;width:300px}.hero-floating-tag.top{right:-15px}.detail-bottom-v3{grid-template-columns:minmax(0,1fr) 265px}.detail-hero-v3 .detail-grid{gap:26px}}
@media(max-width:900px){.shell{width:calc(100% - 42px)}.site-header .nav{height:auto;min-height:74px;padding-block:9px}.nav nav{gap:15px;font-size:11px}.hero-v3 .hero-grid{grid-template-columns:1fr .72fr;gap:8px}.hero-v3 h1{font-size:42px}.hero-v3-visual{min-height:410px;transform:scale(.83)}.hero-metrics{gap:15px}.hero-metrics>span+span{padding-left:15px}.library-layout{grid-template-columns:1fr}.folder-panel{position:relative;top:0}.folder-panel-head{display:flex;justify-content:space-between;align-items:center}.folder-mobile-toggle{display:inline-flex;align-items:center;gap:10px;border:1px solid #dbebe2;background:#f5fbf1;color:#227260;padding:9px 11px;border-radius:8px;font:800 10px 'Be Vietnam Pro',sans-serif;cursor:pointer}.folder-list,.folder-panel-foot{display:none}.folder-panel.mobile-open .folder-list{display:block;max-height:420px}.folder-panel.mobile-open .folder-panel-foot{display:block}.detail-bottom-v3{grid-template-columns:1fr}.detail-bottom-v3 .right-panel{position:static;display:grid;grid-template-columns:1fr 1fr;gap:15px}.detail-bottom-v3 .side-notes{margin-top:0}.side-back{grid-column:span 2}.detail-hero-v3 .detail-grid{grid-template-columns:1fr 240px}.detail-aside-v3{min-height:310px}.detail-aside-v3>strong{font-size:17px}.detail-aside-v3 .aside-category{margin-top:28px}}
@media(max-width:680px){.shell{width:calc(100% - 32px)}.site-header .nav{flex-direction:row;flex-wrap:wrap;gap:7px;justify-content:space-between;padding-block:10px}.brand-symbol{width:38px;height:38px}.brand-type{font-size:21px}.brand-type small{font-size:7px;letter-spacing:2px}.nav nav{width:100%;gap:6px;justify-content:space-between;overflow:auto;scrollbar-width:none}.nav nav a{font-size:10px;white-space:nowrap;padding:10px 4px}.nav nav .nav-cta{font-size:10px;border-radius:9px;padding:10px 9px}.hero-v3 .hero-grid{grid-template-columns:1fr;min-height:0;padding:0}.hero-v3 .hero-copy{padding:49px 0 15px}.hero-v3 h1{font-size:clamp(33px,8.3vw,47px);letter-spacing:-1.7px;margin:15px 0}.hero-v3 .hero-copy>p{font-size:12px;line-height:1.85}.hero-v3 .hero-actions{gap:10px;margin-top:23px}.hero-v3 .btn{padding:13px 14px;font-size:10px}.hero-metrics{margin-top:32px;margin-bottom:0;gap:10px;justify-content:space-between}.hero-metrics strong{font-size:20px}.hero-metrics small{white-space:normal;font-size:9px}.hero-metrics>span+span{padding-left:12px}.hero-v3-visual{height:318px;min-height:318px;margin:12px 0 0;transform:none}.hero-pdf-sheet{width:229px;height:293px}.hero-pdf-sheet.front{padding:19px 18px 13px}.hero-pdf-sheet.back{border-width:5px}.hero-sheet-header{font-size:14px;padding-bottom:9px}.hero-sheet-header b{font-size:8px}.hero-sheet-tag{margin-top:15px;font-size:7px}.hero-pdf-sheet.front>strong{font-size:15px;margin-top:7px}.hero-sheet-rule{margin:14px 0}.hero-sheet-question{font-size:9px}.hero-sheet-question span{font-size:8px}.hero-sheet-line{margin-top:9px}.hero-sheet-choices{margin-top:13px}.hero-sheet-choices span{width:21px;height:21px;font-size:9px}.hero-sheet-footer{bottom:9px;left:18px;right:18px;padding-top:8px;font-size:6px}.hero-floating-tag{font-size:9px;padding:10px 12px}.hero-floating-tag.top{top:18px;right:0}.hero-floating-tag.bottom{bottom:22px;left:0}.benefits-v3{margin-top:0;grid-template-columns:1fr;gap:0;padding:8px 20px;border-radius:0 0 15px 15px}.benefits-v3>div{padding:14px 3px;display:grid;grid-template-columns:44px 1fr;gap:0 7px}.benefits-v3>div+div{border-left:0;border-top:1px solid #eaf0f3}.benefits-v3 .benefit-icon{grid-row:span 2;width:37px;height:37px;margin:0}.benefits-v3 strong{font-size:12px}.benefits-v3 p{margin:4px 0 0;font-size:10px}.catalog-section{padding-block:49px 60px}.catalog-section .section-head{align-items:flex-start;gap:12px}.catalog-section .section-head h2{font-size:26px}.live-pill{font-size:9px;padding:9px}.search-box{padding:7px;gap:5px}.search-box .btn{font-size:10px;padding:12px}.search-field input{font-size:11px}.library-results .paper-grid,.category-v3 .category-results{grid-template-columns:1fr}.paper-card{flex-direction:row;align-items:stretch;min-height:155px}.card-visual{height:auto;min-height:164px;width:36%;flex:none;align-items:center}.mini-paper{transform:rotate(-5deg) scale(.75);top:16px}.mini-pdf-label{left:7px;top:8px;padding:5px 6px}.mini-format{right:5px;bottom:9px;padding:5px 6px;font-size:7px}.card-content{padding:15px 13px 12px;min-height:164px}.paper-card .card-type{display:none}.paper-card h3{font-size:12px;line-height:1.55;margin:10px 0 5px}.paper-card p{font-size:9px}.paper-card .card-bottom>span:first-child{font-size:8px}.paper-card .card-cta{font-size:9px}.results-type{display:none}.detail-hero-v3{padding:20px 0 39px}.detail-hero-v3 .detail-grid{grid-template-columns:1fr;gap:10px;padding-top:31px}.detail-hero-v3 .detail-copy h1{font-size:29px}.detail-hero-v3 .detail-copy>p{font-size:11px}.detail-hero-v3 .download-actions .btn{font-size:11px;flex:1;justify-content:center;padding:13px 9px}.detail-aside-v3{display:none}.detail-bottom-v3{padding-block:22px 60px}.detail-bottom-v3 .detail-panel{padding:20px 16px}.detail-bottom-v3 .right-panel{display:flex;flex-direction:column}.side-back{grid-column:auto}.preview-heading{display:block}.preview-document-tag{display:inline-flex;margin:0 0 13px}.preview-paper{padding:20px 15px}.preview-choices{grid-template-columns:1fr}.preview-foot .btn{width:100%;text-align:center}.category-v3{padding-top:18px}.category-heading{padding-top:24px}.category-heading h1{font-size:27px}.category-v3 .category-intro{padding:15px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;scroll-behavior:auto!important;transition:none!important}.ux-reveal{opacity:1!important;transform:none!important}}