/* V3: calmer typography, consistent rhythm, focused assessment workspace. */
:root{--bg:#f3f6f8;--surface:#fff;--ink:#142f43;--muted:#617584;--line:#dce5eb;--teal:#087e82;--teal-light:#e5f3f2;--nav:#112f43;--radius:14px;--shadow:0 6px 22px #12384906;font-size:15px}
body{line-height:1.65}.main{max-width:1550px;padding:36px 42px 60px;margin:auto}h1{font-size:clamp(27px,2.6vw,39px);letter-spacing:-1.1px;font-weight:700}h2{line-height:1.4}p{max-width:80ch}.card{border:1px solid var(--line);box-shadow:var(--shadow);border-radius:var(--radius)}.btn{min-height:44px;font-size:13px;border-radius:9px}.text{min-height:46px;font-size:15px}.form-field{margin:18px 0}.form-field label{font-size:13px;font-weight:600}.nav-link{font-size:12px;min-height:44px}.sidebar{background:var(--nav);color:#e3f0f3}.sidebar .brand-name{color:white}.sidebar .brand-sub,.sidebar .nav-label,.sidebar .sidebar-foot{color:#9bb5c4}.sidebar .nav-link{color:#bed0dc}.sidebar .nav-link.active{background:#1c4859;color:#b8f1e6}.sidebar .nav-link:hover{background:#244657}.sidebar-tip{display:none}.brand-mark{background:#198a89}.topbar{box-shadow:none}.page-heading{padding:0 0 28px;margin-bottom:22px;background:none;border:0}.heading-orbit{display:none}.premium-heading:before,.premium-heading:after{display:none}.page-heading .muted{margin-top:12px;font-size:15px}.card:hover{transform:none}.eyebrow{font-size:10px;letter-spacing:1.6px}.subject-card{border-radius:14px}.hero{box-shadow:none}.scanner-sweep,.brand-pulse{animation:none}.v3-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}.v3-grid>.card{padding:26px}.v3-admin-grid{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,1fr);gap:24px}.v3-admin-grid .card{padding:24px}.metrics-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;margin:24px 0}.metric{padding:22px}.metric span{color:var(--muted);font-size:13px}.metric strong{display:block;font-size:28px;margin-top:12px;letter-spacing:-1px}.filter-bar{display:flex;gap:12px;align-items:center;margin-bottom:24px;padding:18px}.filter-bar .text{min-width:0}.subject-stat{display:grid;grid-template-columns:1fr 2fr auto;gap:24px;align-items:center;padding:22px}.subject-stat progress{margin:0}progress{width:100%;height:9px;display:block;border:0;border-radius:8px;overflow:hidden;background:var(--line);accent-color:var(--teal);margin:20px 0}progress::-webkit-progress-bar{background:var(--line)}progress::-webkit-progress-value{background:var(--teal);border-radius:8px}.profile-editor{max-width:660px;padding:32px}.profile-photo{width:88px;height:88px;border-radius:24px;object-fit:cover}.initials{display:grid;place-items:center;background:var(--teal-light);color:var(--teal);font-size:26px;font-weight:700}.announcement-body{white-space:pre-wrap}.tabs{flex-wrap:wrap}.map-legend{font-size:11px;color:var(--muted);margin:18px 0 12px}.viewer-stage{touch-action:none;cursor:grab}.viewer-stage:active{cursor:grabbing}.viewer-stage:fullscreen{background:#081d2a;width:100vw;height:100vh}.viewer-stage img{user-select:none;-webkit-user-drag:none}.viewer-tools{flex-wrap:wrap}.ai-explanation{white-space:pre-wrap;line-height:1.8}.auth-card{max-width:520px;margin:20px auto;padding:36px}[hidden]{display:none!important}
.exam-focus .sidebar{width:84px;padding:28px 14px}.exam-focus .sidebar .brand{padding:0 7px 24px}.exam-focus .sidebar .brand>div,.exam-focus .sidebar .nav-link>span,.exam-focus .sidebar .nav-label,.exam-focus .sidebar-foot{display:none}.exam-focus .site-body{margin-left:84px}.exam-focus .sidebar .nav-link{justify-content:center;padding:14px 0}.exam-focus .topbar{height:66px}.exam-focus .top-search{display:none}.exam-focus .main{max-width:1420px;padding-top:22px}.quiz-top{position:sticky;top:0;z-index:35;background:var(--bg);padding:16px 0;margin-bottom:22px;border-bottom:1px solid var(--line)}.quiz-top h1{font-size:24px}.quiz-top .eyebrow{margin-bottom:3px}.timer{font-variant-numeric:tabular-nums;background:var(--surface);border:1px solid var(--line);font-size:23px;min-width:106px;justify-content:center;box-shadow:none}.quiz-layout{grid-template-columns:minmax(0,1fr) 270px;gap:28px;align-items:start}.question-card{padding:32px 36px}.question-number{display:flex;align-items:center;gap:10px}.question-number>.icon-button{margin-left:auto}.question-card h2{font-size:23px;line-height:1.55;font-weight:650;margin:26px 0}.answer-option{min-height:64px;padding:17px 20px;margin:12px 0;border:1px solid var(--line);border-radius:11px;font-size:16px;transition:border-color .15s,background .15s}.answer-option:hover{background:var(--bg)}.answer-option.selected{border:2px solid var(--teal);padding:16px 19px;background:var(--teal-light)}.answer-letter{min-width:28px;font-size:14px}.answer-option.correct{border-color:#24876d;background:#e9f6ef;color:#165e48}.answer-option.wrong{border-color:#ba605a;background:#fff0ed;color:#894039}.quiz-side{position:sticky;top:112px;padding:24px}.quiz-side h3{font-size:15px}.question-map{grid-template-columns:repeat(5,1fr);gap:8px;margin-top:20px}.question-dot{height:38px;border-radius:8px;position:relative;border:1px solid var(--line);background:var(--surface);color:var(--ink)}.question-dot.current{outline:2px solid var(--teal);outline-offset:2px}.question-dot.flagged{border-color:#b38032}.question-dot>span{position:absolute;right:-3px;top:-8px;color:#a06813;font-size:15px;background:var(--surface);border-radius:4px}.question-dot.answered{background:var(--teal-light);color:var(--teal);border-color:#9dcac6}.question-actions{border-top:1px solid var(--line);padding-top:22px;display:flex;justify-content:space-between;gap:16px;margin-top:28px}.question-actions .btn{min-width:140px}.practice-feedback{margin-top:24px;padding:20px 22px;background:var(--bg);border-left:3px solid var(--teal);border-radius:8px}.practice-feedback p{font-size:14px;margin-top:8px;line-height:1.8}.save-state{font-size:11px;line-height:1.6;margin-top:18px}.review-card{padding:28px;margin-bottom:20px}.review-card h3{font-size:18px;line-height:1.6;margin:20px 0}.review-option{padding:13px 17px}.result-top{padding:36px}.progress-track span{transition:width .2s}.question-image{max-height:430px;object-fit:contain;background:#112732;border-radius:12px}.exam-focus .reveal-item{opacity:1;transform:none;transition:none}
[data-theme=dark]{--bg:#0d202d;--surface:#142c3b;--ink:#e1ebf1;--muted:#a2b7c5;--line:#2a4657;--teal:#56bfb7;--teal-light:#183e43}.answer-option.correct:has(input:checked){color:#165e48}.btn.primary{color:#fff}[data-theme=dark] .btn.primary{background:#087e82}
@media(min-width:1100px){.topbar{position:relative}.quiz-top{top:0}}
@media(max-width:1000px){.main{padding:26px}.quiz-layout{grid-template-columns:minmax(0,1fr) 225px;gap:18px}.question-card{padding:25px}.metrics-grid{grid-template-columns:repeat(2,1fr)}.v3-admin-grid{grid-template-columns:1fr}}
@media(max-width:760px){.main,.exam-focus .main{padding:20px 16px 32px}.exam-focus .site-body{margin-left:0}.exam-focus .sidebar{width:260px}.exam-focus .sidebar .brand>div,.exam-focus .sidebar .nav-link>span,.exam-focus .sidebar .nav-label{display:block}.exam-focus .sidebar .nav-link{justify-content:flex-start;gap:12px;padding:12px}.exam-focus .topbar{height:60px}.quiz-layout{display:flex;flex-direction:column;gap:16px}.question-card{width:100%;padding:22px 17px}.quiz-side{position:static;width:100%;padding:22px}.question-map{grid-template-columns:repeat(8,minmax(0,1fr))}.question-card h2{font-size:20px;margin:22px 0}.question-number{gap:4px;flex-wrap:wrap}.question-number .btn{font-size:11px;padding:7px}.quiz-top{top:0;padding:13px 0;margin-bottom:12px}.quiz-top h1{font-size:19px}.timer{font-size:20px;min-width:86px}.answer-option{padding:15px 13px;font-size:15px;min-height:64px}.answer-option.selected{padding:14px 12px}.question-actions{position:sticky;bottom:0;background:var(--surface);padding:16px 0 4px;z-index:20;gap:10px}.question-actions .btn{flex:1;min-width:0;min-height:48px}.v3-grid{grid-template-columns:1fr}.filter-bar{flex-wrap:wrap}.filter-bar .text{flex:1 1 140px}.subject-stat{grid-template-columns:1fr auto;gap:12px}.subject-stat progress{grid-column:1/-1;grid-row:2}.metric{padding:17px}.metric strong{font-size:24px}.profile-editor,.auth-card{padding:24px}.review-card{padding:21px 17px}.viewer-tools{gap:5px}.viewer-toolbar{gap:12px}.result-top{padding:24px}.mode-indicator{display:none}.practice-feedback{padding:16px}.page-heading{padding-bottom:14px}.page-heading .muted{font-size:14px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;transition:none!important;scroll-behavior:auto!important}.reveal-item{opacity:1!important;transform:none!important}}
/* V3.5 profile/header and announcement integration */
.profile-chip{display:flex;align-items:center;gap:9px;min-width:0;padding:4px 7px 4px 4px;border:1px solid transparent;border-radius:12px;transition:background .15s,border-color .15s}.profile-chip:hover{background:var(--bg);border-color:var(--line)}.profile-chip .avatar{flex:0 0 35px;overflow:hidden}.profile-chip .avatar img{width:100%;height:100%;object-fit:cover;display:block}.profile-chip-copy{display:flex;flex-direction:column;min-width:0;max-width:170px;line-height:1.2}.profile-chip-copy strong{font-size:11px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.profile-chip-copy small{font-size:9px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-top:3px}.home-announcements{display:grid;gap:12px}.home-announcements article{padding-top:12px;border-top:1px solid var(--line)}.home-announcements article:first-of-type{padding-top:0;border-top:0}.home-announcements article strong{display:block;font-size:12px;line-height:1.45}.home-announcements article p{font-size:11px;line-height:1.65;color:var(--muted);margin-top:5px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
@media(max-width:1000px){.profile-chip-copy{display:none}.profile-chip{padding:0;border:0}.profile-chip:hover{background:transparent}}
@media(max-width:760px){.profile-chip{display:none}}

/* V4.5 - public landing, four-core dashboard and trial-course presentation */
.landing-shell{min-height:100vh;background:linear-gradient(180deg,#f7fbfb 0%,#eef5f6 52%,#f8fafb 100%);color:#133342}.landing-topbar{height:78px;display:flex;align-items:center;gap:28px;padding:0 clamp(20px,5vw,76px);border-bottom:1px solid #dbe7e9;background:rgba(250,253,253,.92);backdrop-filter:blur(16px);position:sticky;top:0;z-index:80}.landing-brand{display:flex;align-items:center;gap:12px;min-width:0}.landing-brand .brand-mark{width:40px;height:40px;border-radius:13px;font-size:10px;letter-spacing:.8px;padding:0;background:linear-gradient(145deg,#0b8178,#075d59);box-shadow:0 10px 25px rgba(11,113,108,.16)}.landing-brand>span:last-child{display:flex;flex-direction:column;line-height:1.12}.landing-brand strong{font-size:16px;letter-spacing:-.35px}.landing-brand small{font-size:7px;letter-spacing:1.45px;color:#718993;margin-top:5px}.landing-nav{margin-left:auto;display:flex;align-items:center;gap:28px;font-size:11px;font-weight:700;color:#607984}.landing-nav a:hover{color:#087e82}.landing-login-cta{margin-left:8px}.landing-main{width:100%;overflow:hidden}.landing-hero{width:min(1440px,calc(100% - 48px));margin:42px auto 0;min-height:560px;border-radius:28px;padding:clamp(44px,6vw,86px);display:grid;grid-template-columns:minmax(0,1.12fr) minmax(360px,.88fr);align-items:center;gap:50px;background:linear-gradient(135deg,#0d303b 0%,#102b37 55%,#0c3a43 100%);color:white;position:relative;overflow:hidden;isolation:isolate;box-shadow:0 28px 70px rgba(15,48,59,.18)}.landing-hero:before{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(255,255,255,.12) .6px,transparent .7px);background-size:9px 9px;mask-image:linear-gradient(100deg,transparent 10%,#000 58%,#000);opacity:.28;z-index:-1}.landing-hero:after{content:"";position:absolute;width:650px;height:650px;border:1px solid rgba(128,220,203,.13);border-radius:50%;right:-250px;top:-230px;box-shadow:0 0 0 55px rgba(128,220,203,.035),0 0 0 110px rgba(128,220,203,.018);z-index:-1}.landing-hero-copy{position:relative;z-index:2;max-width:760px}.landing-hero-copy .eyebrow{color:#8ed9cb;margin-bottom:15px}.landing-hero-copy h1{font-size:clamp(38px,5.25vw,68px);line-height:1.06;letter-spacing:-2.7px;font-weight:700;max-width:900px}.landing-hero-copy>p:not(.eyebrow){font-size:14px;line-height:1.9;color:#b9ced3;max-width:670px;margin-top:22px}.landing-actions{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-top:30px}.landing-actions .btn{min-height:50px;padding:13px 21px}.landing-actions .secondary{background:rgba(255,255,255,.055);color:#e5f0f2;border-color:rgba(255,255,255,.18)}.landing-actions .secondary:hover{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.28)}.landing-trust{display:flex;align-items:center;gap:24px;flex-wrap:wrap;margin-top:30px;padding-top:24px;border-top:1px solid rgba(255,255,255,.1);font-size:10px;letter-spacing:.25px;color:#9fb8bd}.landing-trust span{display:flex;align-items:center;gap:7px}.landing-trust .icon{width:16px;height:16px;color:#82cec0}.landing-visual{width:min(440px,100%);aspect-ratio:1;justify-self:end;position:relative;display:grid;place-items:center;border-radius:50%;background:radial-gradient(circle,rgba(90,186,171,.13) 0 9%,rgba(90,186,171,.03) 10% 34%,transparent 35%);filter:drop-shadow(0 20px 45px rgba(0,0,0,.16))}.landing-scan-ring{position:absolute;border-radius:50%;border:1px solid rgba(138,224,207,.28)}.landing-scan-ring.r1{inset:8%}.landing-scan-ring.r2{inset:22%;border-color:rgba(138,224,207,.38)}.landing-scan-ring.r3{inset:37%;border-color:rgba(138,224,207,.55);box-shadow:0 0 36px rgba(93,211,190,.09)}.landing-scan-core{width:82px;height:82px;border-radius:50%;display:grid;place-items:center;color:#b4e5dc;border:1px solid rgba(156,231,217,.45);background:rgba(121,214,198,.08);font-size:28px;font-weight:200}.landing-visual:before,.landing-visual:after{content:"";position:absolute;left:50%;top:7%;bottom:7%;width:1px;background:linear-gradient(transparent,rgba(133,218,203,.5),transparent)}.landing-visual:after{left:7%;right:7%;top:50%;bottom:auto;width:auto;height:1px}.landing-visual>span{position:absolute;bottom:4%;right:11%;font:8px/1.3 monospace;letter-spacing:2px;color:#719da0}.landing-section{width:min(1320px,calc(100% - 48px));margin:0 auto;padding:96px 0 12px}.landing-section-head{max-width:760px;margin-bottom:34px}.landing-section-head h2{font-size:clamp(28px,3.6vw,45px);line-height:1.18;letter-spacing:-1.4px}.landing-section-head>p:last-child:not(.eyebrow){margin-top:13px;color:#667f89;font-size:13px}.landing-feature-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:17px}.landing-feature-grid article,.landing-course-card{background:rgba(255,255,255,.82);border:1px solid #dbe7e9;border-radius:20px;padding:28px;box-shadow:0 10px 30px rgba(17,55,67,.045)}.landing-feature-grid article>span:first-child,.landing-course-icon{width:45px;height:45px;border-radius:13px;display:grid;place-items:center;background:#e4f3f1;color:#087e82;margin-bottom:28px}.landing-feature-grid h3,.landing-course-card h3{font-size:18px;letter-spacing:-.4px}.landing-feature-grid p,.landing-course-card p{font-size:12px;line-height:1.78;color:#647c86;margin-top:10px}.landing-courses{padding-top:84px}.landing-course-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:17px}.landing-course-card{min-height:275px;display:flex;flex-direction:column}.landing-course-card .eyebrow{font-size:8px;margin-bottom:7px}.landing-course-card>span:last-child{font-size:10px;color:#78909a;margin-top:auto;padding-top:22px;border-top:1px solid #e4ecee}.landing-auth-section{width:min(1320px,calc(100% - 48px));margin:96px auto 70px;display:grid;grid-template-columns:minmax(0,.85fr) minmax(430px,1.15fr);gap:50px;align-items:center;background:#fff;border:1px solid #dbe7e9;border-radius:26px;padding:clamp(28px,5vw,68px);box-shadow:0 24px 65px rgba(17,55,67,.08);scroll-margin-top:95px}.landing-auth-copy h2{font-size:clamp(31px,4vw,48px);line-height:1.15;letter-spacing:-1.5px}.landing-auth-copy>p:not(.eyebrow){font-size:13px;line-height:1.85;color:#667e88;margin-top:17px;max-width:520px}.landing-auth-note{display:flex;align-items:flex-start;gap:10px;padding:15px 16px;border-radius:12px;background:#eef7f5;color:#54716f;font-size:11px;line-height:1.65;margin-top:25px}.landing-auth-note .icon{width:17px;color:#087e82;margin-top:1px}.landing-auth-card{min-width:0}.landing-auth-card .page-heading{display:none}.landing-auth-card .auth-card{margin:0;max-width:none;padding:34px;border-radius:20px;background:#f8fbfb;box-shadow:none}.landing-auth-card .auth-card h1{font-size:29px}.landing-footer{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:28px clamp(24px,5vw,76px);border-top:1px solid #dbe7e9;color:#6e848d;font-size:10px;letter-spacing:.4px;background:#f4f8f9}

.v45-dashboard{max-width:1380px;margin:0 auto}.v45-welcome-hero.hero{min-height:260px;padding:34px 38px;border-radius:20px;display:grid;grid-template-columns:minmax(0,1fr) 260px;align-items:center;gap:34px;background:linear-gradient(135deg,#11313c 0%,#0d2833 70%,#123d45 100%);color:white;overflow:hidden}.v45-welcome-hero:after{content:"";position:absolute;width:320px;height:320px;border-radius:50%;right:-125px;top:-125px;border:1px solid rgba(142,217,203,.14);box-shadow:0 0 0 35px rgba(142,217,203,.035),0 0 0 70px rgba(142,217,203,.015)}.v45-welcome-copy{position:relative;z-index:2;max-width:820px}.v45-welcome-copy .eyebrow{color:#8bd2c6}.v45-welcome-copy h1{font-size:clamp(28px,3.8vw,44px);line-height:1.15;letter-spacing:-1.4px}.v45-welcome-copy>p:not(.eyebrow){font-size:12px;line-height:1.8;color:#afc4c9;margin-top:12px;max-width:700px}.v45-hero-meta{display:flex;align-items:center;gap:18px;flex-wrap:wrap;margin-top:23px;font-size:9px;text-transform:uppercase;letter-spacing:.55px;color:#9bb5ba}.v45-hero-meta span{display:flex;align-items:center;gap:6px}.v45-hero-meta .icon{width:14px;height:14px;color:#8bd2c6}.v45-progress-card{position:relative;z-index:2;padding:22px;border:1px solid rgba(255,255,255,.11);background:rgba(255,255,255,.055);border-radius:16px}.v45-progress-card>span{font-size:8px;letter-spacing:1.2px;color:#98b5b8}.v45-progress-card strong{display:block;font-size:38px;letter-spacing:-1.3px;margin:10px 0 3px}.v45-progress-card progress{height:7px;background:rgba(255,255,255,.12);margin:12px 0}.v45-progress-card progress::-webkit-progress-bar{background:rgba(255,255,255,.12)}.v45-progress-card progress::-webkit-progress-value{background:#85d4c5}.v45-progress-card small{color:#9eb5ba;font-size:9px}.v45-section-title{margin:34px 0 17px}.v45-section-title h2{font-size:20px}.v45-primary-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}.v45-primary-card{position:relative;min-height:252px;padding:22px 21px 20px;display:flex;flex-direction:column;overflow:hidden;transition:transform .16s,border-color .16s,box-shadow .16s}.v45-primary-card:hover{transform:translateY(-3px);border-color:#a6ccc6;box-shadow:0 14px 32px rgba(14,73,75,.075)}.v45-primary-card:before{content:"";position:absolute;width:105px;height:105px;border-radius:50%;right:-48px;top:-45px;background:radial-gradient(circle,rgba(8,126,130,.11),rgba(8,126,130,0) 70%)}.v45-card-index{position:absolute;right:18px;top:17px;font:9px/1 monospace;letter-spacing:1px;color:#9aabb2}.v45-card-icon{width:40px;height:40px;border-radius:12px;display:grid;place-items:center;background:var(--teal-light);color:var(--teal);margin-bottom:23px}.v45-card-icon .icon{width:20px}.v45-primary-card .eyebrow{font-size:8px;margin-bottom:4px}.v45-primary-card h2{font-size:18px;line-height:1.25}.v45-primary-card p:not(.eyebrow){font-size:10px;line-height:1.65;color:var(--muted);margin-top:8px;min-height:49px}.v45-primary-card>strong{font-size:23px;letter-spacing:-.7px;margin-top:auto;padding-top:12px}.v45-card-link{display:flex;align-items:center;gap:6px;font-size:9px;color:var(--teal);font-weight:700;margin-top:9px}.v45-card-link .icon{width:14px}.v45-secondary-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.v45-secondary-card{min-height:225px;padding:22px}.v45-secondary-head{display:flex;align-items:center;gap:12px;margin-bottom:19px}.v45-secondary-head>span{width:38px;height:38px;display:grid;place-items:center;background:var(--teal-light);color:var(--teal);border-radius:11px;flex:0 0 38px}.v45-secondary-head>span .icon{width:18px}.v45-secondary-head .eyebrow{font-size:8px;margin-bottom:2px}.v45-secondary-head h3{font-size:15px}.v45-mini-list{display:grid;gap:8px}.v45-mini-list>a{display:grid;grid-template-columns:35px minmax(0,1fr) 16px;align-items:center;gap:11px;padding:10px 11px;border-radius:10px;background:var(--bg);border:1px solid transparent}.v45-mini-list>a:hover{border-color:var(--line)}.v45-mini-list b{font-size:9px;color:var(--teal);font-variant-numeric:tabular-nums}.v45-mini-list span{min-width:0;display:flex;flex-direction:column}.v45-mini-list strong{font-size:11px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.v45-mini-list small{font-size:9px;color:var(--muted);margin-top:3px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.v45-mini-list .icon{width:14px;color:#9aaab0}.v45-empty-copy{font-size:11px;line-height:1.75}.v45-course-card{position:relative}.v45-course-card .badge{margin-bottom:9px}.v45-course-meta{display:flex;gap:12px;flex-wrap:wrap;font-size:9px;color:var(--muted);margin:11px 0 16px}.v45-course-meta span{display:flex;align-items:center;gap:5px}.v45-course-meta .icon{width:13px}.v45-secondary-card.home-announcements>p{font-size:11px;line-height:1.75;display:-webkit-box;-webkit-line-clamp:4;-webkit-box-orient:vertical;overflow:hidden}.modal-close{position:absolute;top:16px;right:16px}.modal-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:24px}

[data-theme=dark] .landing-shell{background:#0b1920;color:#e5f0f1}[data-theme=dark] .landing-topbar{background:rgba(12,29,36,.94);border-color:#213740}[data-theme=dark] .landing-brand small,[data-theme=dark] .landing-nav,[data-theme=dark] .landing-section-head>p:last-child:not(.eyebrow),[data-theme=dark] .landing-feature-grid p,[data-theme=dark] .landing-course-card p,[data-theme=dark] .landing-course-card>span:last-child,[data-theme=dark] .landing-auth-copy>p:not(.eyebrow){color:#90a7af}[data-theme=dark] .landing-feature-grid article,[data-theme=dark] .landing-course-card,[data-theme=dark] .landing-auth-section{background:#10242c;border-color:#263d46}[data-theme=dark] .landing-auth-card .auth-card{background:#0d1e25}[data-theme=dark] .landing-footer{background:#0c1d24;border-color:#213740;color:#78919a}

@media(max-width:1100px){.landing-hero{grid-template-columns:minmax(0,1fr) 330px;padding:52px}.landing-feature-grid,.landing-course-grid,.v45-primary-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.landing-auth-section{grid-template-columns:1fr 1fr}.v45-welcome-hero.hero{grid-template-columns:minmax(0,1fr) 220px}}
@media(max-width:760px){.landing-topbar{height:68px;padding:0 18px}.landing-nav{display:none}.landing-login-cta{margin-left:auto}.landing-brand strong{font-size:14px}.landing-brand small{display:none}.landing-hero{width:calc(100% - 28px);margin-top:14px;min-height:auto;border-radius:22px;padding:34px 24px 38px;grid-template-columns:1fr;gap:30px}.landing-hero-copy h1{font-size:36px;letter-spacing:-1.5px}.landing-hero-copy>p:not(.eyebrow){font-size:12px}.landing-visual{width:min(320px,84vw);justify-self:center}.landing-section{width:calc(100% - 28px);padding-top:65px}.landing-section-head{margin-bottom:23px}.landing-feature-grid,.landing-course-grid{grid-template-columns:1fr 1fr;gap:12px}.landing-feature-grid article,.landing-course-card{padding:21px;min-height:auto}.landing-auth-section{width:calc(100% - 28px);margin:65px auto 40px;grid-template-columns:1fr;gap:26px;padding:25px}.landing-auth-card .auth-card{padding:24px}.landing-footer{padding:24px 18px;flex-direction:column;align-items:flex-start}.v45-welcome-hero.hero{grid-template-columns:1fr;min-height:auto;padding:26px 22px;gap:22px}.v45-progress-card{max-width:none}.v45-primary-grid,.v45-secondary-grid{grid-template-columns:1fr}.v45-primary-card{min-height:218px}.v45-section-title{margin-top:28px}}
@media(max-width:480px){.landing-login-cta{min-height:40px;padding:8px 13px;font-size:10px}.landing-hero-copy h1{font-size:31px}.landing-actions{align-items:stretch;flex-direction:column}.landing-actions .btn{width:100%}.landing-trust{gap:13px}.landing-feature-grid,.landing-course-grid{grid-template-columns:1fr}.landing-feature-grid article{min-height:180px}.landing-course-card{min-height:230px}.landing-auth-copy h2{font-size:31px}.v45-welcome-copy h1{font-size:28px}.v45-hero-meta{gap:10px}.v45-primary-card{padding:20px}.v45-secondary-card{padding:20px}}
/* V4.5 visual QA fix: hero headings must stay readable on the dark landing panel. */
.landing-hero-copy h1{color:#f7fbfc}
.v45-welcome-copy h1{color:#f7fbfc}