.portal-page{--accent:#28c8c0;--accent-light:#e1f8f6;--dark:#102c46;--body:#f7f9fa;background:var(--body);color:#182c3e;font-size:14px}.portal-page h1,.portal-page h2,.portal-page h3{font-weight:700}.portal-page h1{font-size:38px;line-height:1.8}.portal-page h2{font-size:25px;line-height:1.8}.portal-page h3{font-size:17px}.portal-page p{line-height:2;color:#7d8993}.portal-page button{font:inherit}.portal-container{max-width:1320px;margin:0 auto;padding-inline:24px}.portal-section{padding-block:64px}.portal-soft{background:#f3f8fa}.portal-header{position:relative;z-index:25;background:#fff}.portal-header-row{height:96px;max-width:1720px;margin:auto;display:flex;align-items:center;gap:28px;padding:0 25px;background:#fafafa}.portal-logo{display:flex;gap:10px;align-items:center;flex-shrink:0}.portal-logo>span{font-weight:850;font-size:29px;line-height:1.1;letter-spacing:-1px}.portal-logo small{display:block;font-size:10px;font-weight:500;letter-spacing:0;margin-top:7px}.global-search{display:flex;height:54px;border:1px solid #e9edef;background:#fff;border-radius:17px;box-shadow:0 2px 3px #00000008;align-items:center;width:450px}.global-search select{width:120px;padding:10px;border:0;border-left:1px solid #eee;font-size:12px;background:transparent}.global-search input{min-width:0;flex:1;width:100%;border:0;padding:10px 16px;font-size:12px;background:none}.global-search button{background:#f9fafb;width:38px;height:38px;margin:6px;border-radius:10px;font-size:25px}.header-spacer{flex:1}.assistant-badge{display:flex;align-items:center;gap:14px;border:1px solid #9ee5df;border-radius:20px;padding:9px 20px;background:linear-gradient(100deg,#effbfa,#bbefeb);box-shadow:0 6px 20px #32c4b91b;white-space:nowrap;line-height:1.4}.assistant-badge>span{font-size:22px}.assistant-badge>div{font-weight:700;font-size:13px}.assistant-badge small{display:block;font-size:10px;color:#438781;font-weight:500}.portal-login{border:2px solid var(--dark);border-radius:28px;padding:7px 20px;display:flex;gap:9px;align-items:center;white-space:nowrap;font-size:12px;font-weight:650}.header-icon{font-size:30px;line-height:1}.header-support{display:flex;gap:14px;align-items:center;white-space:nowrap}.header-support>span{font-weight:650;font-size:12px}.header-support small{font-size:10px;font-weight:400;display:block;color:#999}.header-support b{display:grid;place-items:center;width:42px;height:42px;border:2px solid var(--dark);border-radius:50%;font-size:25px}.portal-nav{height:60px;display:flex;align-items:stretch;justify-content:center;gap:20px;position:relative;background:#fff}.menu-group{display:flex;align-items:center}.menu-top{display:flex;align-items:center;gap:10px;height:100%;border-bottom:3px solid transparent;padding:0 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h1{font-size:38px;margin:15px 0}.rules-hero p{font-size:14px}.rules-stats{background:var(--dark);padding:25px;border:14px solid white;box-shadow:0 15px 40px #2543520d;border-radius:32px}.rules-stats>p{color:var(--accent);font-size:13px;margin-bottom:18px}.rules-stats>div{display:flex;gap:12px}.rules-stats span{display:block;flex:1;background:#26465e;border-radius:20px;padding:20px;text-align:center;color:white}.rules-stats b{display:block;font-size:30px}.rules-stats small{font-size:10px;color:#bbccd7}.rule-shortcuts{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-block:20px 45px}.rule-shortcuts a{background:white;border:1px solid #e9edef;border-radius:15px;padding:20px;display:flex;align-items:center;justify-content:space-between;font-size:13px}.rule-shortcuts small{color:var(--teal);background:var(--accent-light);padding:3px 8px;border-radius:7px;font-size:9px}.circular-heading{display:flex;align-items:center;gap:22px;justify-content:space-between}.circular-heading h1{font-size:27px;white-space:nowrap}.circular-heading .portal-search{margin:0;flex:1;max-width:650px}.circular-featured{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:22px}.circular-featured>a{padding:18px;border:1px solid #e8ecef;border-radius:18px;background:#fff}.circular-featured h3{font-size:13px;line-height:2;margin:15px 0;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.circular-featured small{font-size:10px;color:#93a0a8}.circular-item{background:#fff;border:1px solid #e5ebed;border-radius:17px;padding:24px;margin-bottom:18px}.circular-item h2{font-size:18px;margin:18px 0 12px}.circular-item>p{font-size:12px}.circular-item .p-actions{margin-top:18px;justify-content:space-between;align-items:center}.circular-item small{font-size:10px;color:#9aa7af}.doc-reader{display:grid;grid-template-columns:340px minmax(0,1fr);gap:35px;max-width:1550px;margin:auto;padding:30px 25px 60px}.doc-reader .reading-document{max-width:950px;margin:auto;width:100%;padding:40px}.doc-reader aside{background:white;border:1px solid #e5ebed;border-radius:16px;padding:25px;position:sticky;top:20px}.doc-reader aside h2{font-size:18px;margin:18px 0}.doc-reader .reading-meta{grid-template-columns:1fr;font-size:12px;gap:18px}.doc-reader .document-body{line-height:2.6;font-size:15px}.doc-reader .reading-document h1{font-size:22px}.doc-reader aside .p-button{width:100%;margin-top:15px}.ai-nav{display:flex;justify-content:space-between;padding:25px 0;align-items:center}.ai-nav>strong{display:flex;gap:10px;align-items:center;font-size:18px}.ai-nav>div{display:flex;gap:35px;align-items:center;font-size:12px}.ai-hero{text-align:center;padding:75px 0 70px}.ai-hero h1{font-size:49px;line-height:1.65;max-width:930px;margin:28px auto}.ai-hero mark{background:linear-gradient(transparent 55%,var(--accent) 55%);color:var(--dark)}.ai-hero>p{max-width:680px;margin:30px auto;font-size:16px}.ai-hero .p-actions{justify-content:center;margin-top:38px}.ai-hero .p-button{min-width:140px;height:53px;font-size:15px}.ai-preview{max-width:550px;margin:50px auto 0;text-align:right;border:1px solid #e6ecee;background:white;border-radius:20px;padding:25px;box-shadow:0 16px 40px #13364c08}.ai-preview>small{color:var(--teal);font-size:11px}.ai-preview .sample-question{background:#f0f6f8;padding:12px 16px;margin:20px 0 15px;border-radius:12px;font-size:12px}.ai-preview .sample-answer{font-size:12px;color:#687d89}.ai-features{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.ai-features a{background:#fff;border:1px solid #e5ebed;border-radius:17px;padding:25px;min-height:180px}.ai-features span{font-size:28px;color:var(--teal)}.ai-features h3{font-size:16px;margin:13px 0}.ai-features p{font-size:11px}.portal-faq{max-width:960px;margin:35px auto 65px}.portal-faq details{border:1px solid #e5ebed;background:white;border-radius:13px;margin:12px 0;padding:18px 22px}.portal-faq summary{cursor:pointer;font-size:14px;list-style:none;display:flex;gap:20px;align-items:center}.portal-faq summary:after{content:'+';margin-right:auto;color:var(--teal);font-size:22px}.portal-faq details[open] summary:after{content:'−'}.portal-faq summary>span{font-size:12px;color:var(--teal)}.portal-faq p{font-size:12px;margin:18px 35px 0}.form-layout{display:grid;grid-template-columns:1.25fr 1fr;gap:28px;margin-top:30px}.form-layout h2{font-size:20px;margin-bottom:25px}.form-fields{display:grid;grid-template-columns:1fr 1fr;gap:23px}.form-fields label{font-size:12px;display:block}.form-fields input,.form-fields select{width:100%;border:1px solid #e2e9ed;border-radius:10px;padding:12px;margin-top:9px;font-size:13px}.form-result{display:grid;gap:15px}.form-result>div{display:flex;justify-content:space-between;border-bottom:1px solid #e8eef0;padding:13px 0;font-size:12px}.form-result b{color:#9caab1}.form-toolbar{display:flex;gap:10px;margin-top:25px}.product-layout{display:grid;grid-template-columns:1.4fr .8fr;gap:35px;padding-block:35px 60px}.product-layout .course-cover{height:320px;margin-bottom:30px}.product-summary{background:white;border:1px solid #e3e9ec;border-radius:16px;padding:28px;height:fit-content}.product-summary h1{font-size:25px}.product-summary p{font-size:12px;margin-top:20px}.product-summary .p-button{width:100%;margin-top:20px}.service-hero{display:grid;grid-template-columns:1.2fr 1fr;gap:60px;align-items:center;background:linear-gradient(100deg,#eaf8f6,white);border-radius:30px;padding:42px;margin:30px 0 55px}.service-hero h1{font-size:36px}.service-hero p{font-size:14px;margin-top:23px}.service-guide{background:var(--dark);border:12px solid #fff;border-radius:30px;padding:25px;color:#fff;box-shadow:0 18px 40px #1a394610}.service-guide p{font-size:12px;color:#c0d3df;margin:10px 0;line-height:2.3}.service-guide b{color:var(--accent);margin-left:8px}.service-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:23px;margin:30px 0 60px}.service-grid a{background:#fff;border:1px solid #e5e9ec;border-radius:18px;padding:28px}.service-grid span{font-size:12px;color:var(--teal)}.service-grid h2{font-size:20px;margin:18px 0}.service-grid p{font-size:12px;margin-bottom:22px}.service-grid small{color:var(--teal)}.dictionary-hero{border:1px solid #8cddd5;background:#f9fbfc;border-radius:28px;text-align:center;padding:45px;margin-bottom:40px}.dictionary-hero h1{margin:20px 0}.dictionary-hero .portal-search{margin:35px auto 20px;max-width:900px}.alphabet{display:grid;grid-template-columns:repeat(16,1fr);gap:8px;margin-top:35px}.alphabet button{background:white;border:1px solid #e4eaed;border-radius:11px;padding:9px;color:#7b8b97;font-size:12px}.alphabet button.active{background:var(--accent);color:var(--dark)}.deadline-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin:25px 0 55px}.deadline-cards article{border:1px solid #e4eaed;border-radius:18px;padding:25px;background:white}.deadline-cards h3{font-size:16px;margin:20px 0}.deadline-cards strong{font-size:38px;color:#94a7af}.deadline-cards p{font-size:11px}.info-article{max-width:950px;margin:25px auto 65px;background:white;border:1px solid #e3e9ed;border-radius:18px;padding:40px}.info-article h2{margin:30px 0 15px;font-size:22px}.info-article p{font-size:14px;line-height:2.4}.info-article ul{line-height:2.5;color:#6d8290;font-size:13px}.subscription-hero{padding:70px 0;display:grid;grid-template-columns:1.3fr 1fr;gap:80px;align-items:center}.subscription-hero h1{font-size:37px}.subscription-hero p{font-size:14px;margin:25px 0}.subscription-hero .overview-demo{height:270px}.study-path{background:#effaf8;border:1px solid #d5eeea;padding:25px;border-radius:18px;margin-bottom:30px}.study-path h2{font-size:20px}.study-path p{font-size:12px;margin:15px 0}.study-options{display:grid;gap:10px}.study-options button{background:white;border:1px solid #dcece8;border-radius:10px;padding:12px 18px;text-align:right;font-size:12px}.study-options button:after{content:'←';float:left;color:var(--teal)}.study-result{color:var(--teal);font-size:12px;margin-top:15px}.article-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:25px;margin:35px 0 60px}.article-grid article{background:white;border:1px solid #e3eaed;border-radius:17px;overflow:hidden}.article-grid .article-cover{background:var(--dark);padding:35px;font-size:45px;color:var(--accent);height:150px}.article-grid .article-copy{padding:22px}.article-grid h2{font-size:16px}.article-grid p{font-size:12px;margin:15px 0}.article-grid small{font-size:10px;color:#8b9ba5}.portal-page .pagination{padding-bottom:35px}
/* Reference chat composition: light sidebar, central welcome and composer. */
.reference-chat{background:#fafafa}.reference-chat .app-sidebar{background:#f7f7f8;border-left:1px solid #e3e7ea;color:#536472;width:280px;padding:16px 12px}.reference-chat .app-sidebar>.brand,.reference-chat .app-nav,.reference-chat .chat-topline,.reference-chat .prompt-grid,.reference-chat .chat-empty .overline,.reference-chat .welcome-description{display:none}.reference-chat .new-conversation{background:var(--turquoise);color:var(--navy);border:0;border-radius:12px;font-size:14px;min-height:44px}.reference-chat .conversation-area{border:0;padding-top:12px}.reference-chat .workspace-label{display:none}.conversation-search{width:100%;border:1px solid #e1e7e9;border-radius:12px;padding:10px 13px;font-size:12px;margin:9px 0;background:#fff}.reference-chat #conversation-list a{color:#697c8a;font-size:12px;padding:13px}.reference-chat #conversation-list a:hover,.reference-chat #conversation-list a.active{background:#e5f3f1;color:#125f64}.reference-chat .empty-list{color:#87949e;border:1px dashed #dfe6e8;border-radius:10px;padding:18px;margin-top:10px;background:white}.reference-chat .quota-box{background:#fff;border:1px solid #e1e7e9;color:#6b7d89;margin-bottom:8px}.reference-chat .quota-box>span{color:var(--teal)}.reference-chat .user-row{border:0;background:white;padding:8px;border-radius:10px}.reference-chat .user-row .text-button{color:#637d8c}.reference-chat .admin-link{color:#6c8594}.reference-chat .app-body{margin-right:280px}.reference-chat .app-header{height:65px;background:white;padding-inline:25px}.reference-chat .chat-workspace{min-height:calc(100dvh - 65px);max-width:850px;padding:0 35px 30px}.reference-chat .chat-thread:has(.chat-empty:not([hidden])){flex:none}.reference-chat .chat-empty{padding:calc(max(80px,20vh)) 0 25px;max-width:none}.reference-chat .welcome-mark{width:56px;height:56px;background:var(--navy);padding:10px;border-radius:23px;margin-bottom:20px}.reference-chat .chat-empty h1{font-size:34px;margin:0;line-height:1.8}.reference-chat .chat-empty h1 br{display:none}.reference-chat .chat-empty h1 span{color:var(--navy)}.reference-chat .composer-wrap{background:#fafafa;margin-top:20px;position:sticky;bottom:0;padding-top:0}.reference-chat .composer{border:1px solid #e4e7ea;border-radius:25px;padding:20px 20px 12px;box-shadow:0 2px 3px #00000006}.reference-chat .composer textarea{font-size:14px;min-height:45px}.reference-chat .composer-footer{flex-direction:row-reverse}.reference-chat .composer-footer .button{border-radius:50%;width:37px;height:37px;min-height:37px;padding:0;gap:0;font-size:0;background:var(--turquoise);color:var(--navy)}.reference-chat .composer-footer .button>span{font-size:20px}.reference-chat .keyboard-hint{display:none}.reference-chat .composer-footer a{font-size:12px}.reference-chat .composer-note{font-size:10px;margin-top:22px}.reference-chat .sidebar-bottom{border-top:1px solid #e3e7e9;padding-top:12px}.reference-chat .bubble{margin-block:30px}.reference-chat .header-brand{font-size:16px}.reference-chat .breadcrumb{font-size:10px}.reference-chat .header-home{border:1px solid #e4e9eb;padding:7px 14px;border-radius:25px;color:#6d8290}
@media(max-width:1350px){.portal-header-row{gap:17px}.header-support{display:none}.portal-container{max-width:1220px}.global-search{width:370px}.home-hero-grid{min-height:580px}.portal-home-hero{min-height:580px}.home-hero-title h1{font-size:48px}.home-hero-title p{font-size:20px}.portal-nav{gap:10px}.portal-logo>span{font-size:25px}.portal-header-row{height:90px}.mega-menu{width:95vw}.course-cover b{font-size:15px}.reference-chat .chat-empty{padding-top:18vh}}
@media(max-width:1000px){.header-spacer,.header-icon{display:none}.portal-header-row{gap:15px}.global-search{width:auto;flex:1}.assistant-badge{padding:8px 12px}.portal-nav{gap:3px}.menu-top{font-size:12px}.portal-logo>span{font-size:21px}.portal-container{padding-inline:25px}.home-hero-grid{gap:15px}.home-hero-title h1{font-size:38px}.home-hero-title p{font-size:17px}.mega-links{columns:1}.overview-panel{gap:35px}.course-row{gap:14px}.course-cover{padding:13px}.course-cover b{font-size:13px}.portal-plan{max-width:850px}.footer-columns{gap:15px}.portal-split{grid-template-columns:230px minmax(0,1fr)}.catalogue-grid{grid-template-columns:1fr 1fr}.rules-hero{gap:25px;padding:25px}.rules-hero h1{font-size:30px}.rules-stats{padding:15px;border-width:8px}.rules-stats span{padding:15px}.ai-features{grid-template-columns:repeat(2,1fr)}.circular-heading{flex-wrap:wrap}.circular-featured{grid-template-columns:repeat(2,1fr)}}
@media(prefers-reduced-motion:reduce){.network-visual *{animation:none!important}}
.exam-heading{background:radial-gradient(ellipse at top right,#e9f8f6,transparent 40%),#fff;border-bottom:1px solid #e7ecee;padding:28px 0 48px}.exam-heading .portal-container,.exam-layout{max-width:1260px}.exam-heading h1{font-size:40px;margin:20px 0}.exam-meta{display:flex;gap:10px;flex-wrap:wrap}.exam-meta span{padding:6px 15px;border:1px solid #eef1f3;border-radius:25px;font-size:12px}.exam-meta .exam-status{background:var(--navy);color:var(--turquoise)}.exam-layout{display:grid;grid-template-columns:minmax(0,1fr) 338px;gap:25px;padding-top:32px;padding-bottom:70px}.exam-cover{aspect-ratio:16/9;border-radius:17px;border-top:4px solid var(--turquoise);background:radial-gradient(ellipse at top right,#153e51,transparent 60%),var(--navy);color:#fff;padding:30px;display:flex;flex-direction:column;justify-content:space-between}.exam-cover>span{align-self:flex-end}.exam-cover small{color:var(--turquoise);background:#ffffff08;border-radius:25px;padding:8px 17px}.exam-cover h2{font-size:32px;margin-bottom:8px}.exam-cover p{color:#b7c5cf}.exam-tabs{display:flex;gap:24px;background:white;padding:20px 12px;border-bottom:1px solid #e6ecef;font-size:13px;position:sticky;top:0}.exam-body .portal-panel{margin-top:25px;scroll-margin-top:80px}.exam-sidebar .portal-panel{padding:20px;margin-bottom:20px}.exam-sidebar h3{font-size:15px}.exam-sidebar dl div{display:flex;justify-content:space-between;border-bottom:1px solid #f0f3f4;padding:14px 0;font-size:12px}.exam-sidebar dt{color:#788a96}.exam-sidebar dd{margin:0}.exam-access{text-align:center;background:#effaf8}.exam-access p{font-size:13px;line-height:2}.exam-access a{display:block;margin-top:16px;font-size:13px}
.dashboard-layout{display:grid;grid-template-columns:280px minmax(0,1fr);gap:55px;min-height:670px;padding-block:30px 65px}.dashboard-sidebar{background:#fff;border:1px solid #e8edf0;border-radius:14px;padding:22px 14px;align-self:start}.dashboard-sidebar h1{font-size:17px;padding:0 12px 20px;border-bottom:1px solid #edf0f2}.dashboard-sidebar nav{display:flex;flex-direction:column;gap:6px}.dashboard-sidebar a,.dashboard-sidebar button{display:block;width:100%;text-align:right;border:0;background:none;color:#73848f;padding:13px;border-radius:10px;font:inherit;font-size:14px}.dashboard-sidebar a.active{background:var(--navy);color:var(--turquoise)}.dashboard-sidebar button{cursor:pointer;margin-top:12px}.dashboard-main{padding-top:12px}.dashboard-profile{display:flex;align-items:center;gap:14px;margin-bottom:35px}.dashboard-avatar{background:#e1f5f2;color:var(--navy);width:52px;height:52px;border-radius:50%;display:grid;place-items:center}.dashboard-profile h2{font-size:18px;margin:0}.dashboard-profile span{font-size:12px;color:#699c95}.dashboard-profile>a{margin-right:auto}.dashboard-metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-bottom:30px}.dashboard-metrics article{background:#fff;border:1px solid #e8edf0;border-radius:12px;padding:24px;display:flex;justify-content:space-between;align-items:center}.dashboard-metrics span{color:#80919c;font-size:13px}.dashboard-metrics strong{font-size:25px;color:var(--navy)}.dashboard-main>.portal-panel{margin-bottom:20px}.dashboard-main>.portal-panel h2{font-size:17px}.dashboard-main>.portal-panel p{font-size:13px;color:#758792}.dashboard-plans{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}.dashboard-plans article{border:1px solid #edf1f2;border-radius:10px;padding:15px;font-size:13px}

/* Shared navigation panels. */
.menu-top.selected,
.menu-group:hover .menu-top,
.menu-group:focus-within .menu-top { border-bottom-color: #ffbd13; }
.menu-expander {
  border: 0;
  background: transparent;
  color: #5b6971;
  padding: 9px;
  cursor: pointer;
}
.menu-expander[aria-expanded="true"] { color: #8a6100; transform: rotate(180deg); }
.mega-menu {
  border-top-color: #ffbd13;
  gap: 0;
  padding: 0;
}
.menu-group.open .mega-menu { display: flex; }
@media (hover: hover) {
  .portal-nav:not(:has(.menu-group.open)) .menu-group:hover:not(.menu-dismissed) .mega-menu { display: flex; }
}
.mega-menu section { padding: 18px 20px 22px; }
.mega-menu section + section { border-inline-start: 1px dashed #f7d173; }
.mega-menu h3 { border-bottom: 1px dashed #f7d173; color: #17212b; font-weight: 800; }
.mega-menu .mega-links { columns: 1; }
.mega-menu .mega-links a { padding-block: 7px; }
.mega-menu .mega-links a:hover { color: #8a6100; }
@media (max-width: 700px) {
  .portal-nav { height: auto; min-height: 60px; flex-wrap: wrap; }
  .menu-top { height: auto; min-height: 39px; }
  .menu-group.open .mega-menu {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .mega-menu section { padding: 12px; }
  .mega-menu section:nth-child(odd) { border-inline-start: 0; }
}
@media (max-width: 700px) and (hover: hover) {
  .portal-nav:not(:has(.menu-group.open)) .menu-group:hover:not(.menu-dismissed) .mega-menu {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}