@layer app-theme{:root{--header-h:72px;--sidebar-w:256px;--font-ui:var(--font-inter), "Inter", var(--font-bengali), "Noto Sans Bengali", system-ui, sans-serif;--ease:cubic-bezier(.22, .61, .36, 1);--page:#f8fafc;--surface:#fff;--surface-2:#f1f5f9;--surface-3:#e2e8f0;--text:#0f172a;--text-muted:#64748b;--border:#e2e8f0;--primary:#2563eb;--primary-strong:#1d4ed8;--primary-soft:#dbeafe;--primary-bright:#60a5fa}:root[data-theme=dark]{--nx-ink:#f8fafc;--nx-ink-soft:#e2e8f0;--nx-forest:#3b82f6;--nx-forest-deep:#60a5fa;--nx-lime:#93c5fd;--nx-lime-soft:#172554;--nx-coral:#60a5fa;--nx-coral-text:#93c5fd;--nx-cream:#0f172a;--nx-sage:#1e293b;--nx-sage-strong:#243449;--nx-muted:#94a3b8;--nx-line:#334155;--nx-white:#0f172a;--nx-shadow:0 18px 48px #02061780;--page:#0f172a;--surface:#1e293b;--surface-2:#243449;--surface-3:#334155;--text:#f8fafc;--text-muted:#94a3b8;--border:#334155;--primary:#3b82f6;--primary-strong:#60a5fa;--primary-soft:#1e3a8a;--primary-bright:#93c5fd;--accent-text:#93c5fd;--success:#34d399;--success-text:#6ee7b7;--warning:#fbbf24;--warning-text:#fcd34d;--danger:#f87171;--danger-text:#fca5a5;--info:#60a5fa;--shadow:0 18px 45px #02061773;--shadow-sm:0 8px 24px #02061759;--shadow-lg:0 32px 80px #0206178c}html{-webkit-text-size-adjust:100%}body{font-family:var(--font-ui);-webkit-font-smoothing:antialiased;font-size:16px;line-height:1.65}h1,h2,h3,h4,h5,h6,.brand,.panel-heading h2{font-family:var(--font-ui);letter-spacing:-.03em;font-weight:700;line-height:1.15}p,li,dd,dt,label,td,th{font-size:1rem}small{font-size:.8125rem}.eyebrow,.nx-kicker{letter-spacing:.1em;text-transform:uppercase;font-size:.8125rem;font-weight:700}button,.button,.nx-btn,input,select,textarea{font-family:var(--font-ui)}.button,.nx-btn{min-height:42px;transition:background .18s var(--ease), border-color .18s var(--ease), color .18s var(--ease), box-shadow .18s var(--ease), transform .18s var(--ease);border-radius:10px;justify-content:center;align-items:center;gap:7px;padding:0 18px;font-size:.875rem;font-weight:600;line-height:1.2;display:inline-flex}.button-primary,.nx-btn-primary{background:var(--primary);border:1px solid var(--primary);color:#fff}.button-primary:hover,.nx-btn-primary:hover{background:var(--primary-strong);border-color:var(--primary-strong)}.button-dark{background:var(--text);border:1px solid var(--text);color:var(--surface)}.button-outline{background:var(--surface);border:1px solid var(--border);color:var(--text)}.button-outline:hover{border-color:var(--primary);color:var(--primary)}.button-light{background:var(--surface-2);border:1px solid var(--border);color:var(--text)}.button-sm,.nx-btn-sm{min-height:36px;padding:0 14px;font-size:.875rem}.button:focus-visible,.nx-btn:focus-visible,button:focus-visible{outline:2px solid var(--primary);outline-offset:2px}.field,.auth-label{color:var(--text);gap:8px;font-size:.875rem;font-weight:600}.field input,.field select,.field textarea,.auth-label input,.auth-label textarea,.auth-label select,.inline-input{background:var(--surface);border:1px solid var(--border);color:var(--text);border-radius:10px;min-height:46px;padding:11px 14px;font-size:.9375rem}.field input::placeholder,.field textarea::placeholder,.auth-label input::placeholder{color:var(--text-muted)}.field input:focus,.field select:focus,.field textarea:focus,.auth-label input:focus,.auth-label select:focus,.auth-label textarea:focus{border-color:var(--primary);box-shadow:0 0 0 3px color-mix(in srgb, var(--primary) 18%, transparent);outline:none}.panel{background:var(--surface);border:1px solid var(--border);box-shadow:var(--shadow-sm);border-radius:16px}.panel-heading h2{font-size:1.125rem}.panel-heading>a{color:var(--primary);font-size:.875rem;font-weight:600}table.data{font-size:.9375rem}table.data th{color:var(--text-muted);letter-spacing:.08em;padding:0 14px 12px 0;font-size:.75rem}table.data td{padding:14px 14px 14px 0}table.data tbody tr:hover td{background:color-mix(in srgb, var(--primary) 4%, transparent)}table.data td small{font-size:.8125rem}.badge{letter-spacing:.01em;text-transform:none;border-radius:999px;align-items:center;padding:6px 10px;font-size:.75rem;font-weight:600;line-height:1;display:inline-flex}.badge-ok{background:color-mix(in srgb, var(--success) 16%, transparent);color:var(--success-text)}.badge-warn{background:color-mix(in srgb, var(--warning) 18%, transparent);color:var(--warning-text)}.badge-bad{background:color-mix(in srgb, var(--danger) 16%, transparent);color:var(--danger-text)}.badge-muted{background:var(--surface-2);color:var(--text-muted)}.badge-info{background:color-mix(in srgb, var(--info) 14%, transparent);color:var(--primary-strong)}.badge-dark{background:var(--text);color:var(--surface)}.flash{border-radius:10px;padding:12px 16px;font-size:.875rem}.flash-ok{background:color-mix(in srgb, var(--success) 14%, transparent);color:var(--success-text)}.flash-error{background:color-mix(in srgb, var(--danger) 13%, transparent);color:var(--danger-text)}.tabs{border-bottom-color:var(--border);gap:4px}.tabs a{border-radius:8px 8px 0 0;padding:12px 16px;font-size:.875rem}.tabs a.active{border-color:var(--primary);color:var(--primary)}.muted{color:var(--text-muted);font-size:.875rem}.eyebrow,.nx-kicker{color:var(--text-muted)}.site-nav.public-nav{-webkit-backdrop-filter:blur(18px)saturate(160%);backdrop-filter:blur(18px)saturate(160%);background:color-mix(in srgb, var(--surface) 88%, transparent);border-bottom:1px solid var(--border);z-index:60;position:sticky;top:0}.public-nav-inner{height:var(--header-h);gap:24px;max-width:1280px;padding:0 32px}.public-nav .brand{gap:10px;font-size:1rem}.public-nav .brand-mark{background:var(--primary);color:#fff;border-radius:11px;width:38px;height:38px;font-size:17px}.public-nav .brand-logo{height:36px}.public-nav-links{gap:2px;margin-left:10px}.public-nav-links>a,.nav-more>summary{color:var(--text-muted);border-radius:8px;padding:9px 13px;font-size:.875rem;font-weight:600}.public-nav-links>a:hover,.nav-more>summary:hover{background:var(--surface-2);color:var(--text)}.public-nav-links>a.is-active{background:var(--primary-soft);color:var(--primary-strong)}.nav-more-panel{background:var(--surface);border:1px solid var(--border);box-shadow:var(--shadow);border-radius:12px;min-width:248px;padding:8px}.nav-more-panel a{color:var(--text-muted);border-radius:8px;padding:10px 12px;font-size:.875rem}.nav-more-panel a:hover{background:var(--surface-2);color:var(--text)}.public-nav-actions{gap:6px}.public-icon-button{color:var(--text-muted);border-radius:9px;width:40px;height:40px}.public-icon-button:hover{background:var(--surface-2);color:var(--text)}.public-nav .account-menu-trigger{border-radius:999px;padding:3px 8px 3px 3px}.public-nav .account-menu-trigger:hover{background:var(--surface-2)}.public-nav .account-menu-panel{border-radius:12px}.public-guest-actions{align-items:center;gap:6px;display:flex}.public-guest-actions .nx-btn-ghost{color:var(--text-muted);background:0 0;border-color:#0000}.public-guest-actions .nx-btn-ghost:hover{background:var(--surface-2);color:var(--text)}.public-nav .nx-btn-primary{box-shadow:0 6px 16px color-mix(in srgb, var(--primary) 28%, transparent)}.public-nav .public-ad-slot{display:none}.theme-toggle{color:var(--text-muted);cursor:pointer;height:40px;transition:background .18s var(--ease), color .18s var(--ease), border-color .18s var(--ease);background:0 0;border:1px solid #0000;border-radius:9px;flex:0 0 40px;justify-content:center;align-items:center;width:40px;padding:0;display:inline-flex}.theme-toggle:hover{background:var(--surface-2);color:var(--text)}.theme-toggle svg{width:19px;height:19px}.theme-toggle .icon-moon,:root[data-theme=dark] .theme-toggle .icon-sun{display:none}:root[data-theme=dark] .theme-toggle .icon-moon{display:block}.nx-home{padding-top:0}.nx-hero{padding:24px 24px 0}.nx-hero-card{background:radial-gradient(circle at 84% 12%,#60a5fa4d,#0000 34%),radial-gradient(circle at 12% 110%,#2563eb59,#0000 42%),linear-gradient(135deg,#0b1220 0%,#101f3d 48%,#152e5b 100%);border-radius:28px;grid-template-columns:minmax(0,1.02fr) minmax(360px,.98fr);gap:48px;padding:64px 60px}.nx-hero-card:before{background-image:linear-gradient(#ffffff0d 1px,#0000 1px),linear-gradient(90deg,#ffffff0d 1px,#0000 1px);background-size:48px 48px;-webkit-mask-image:linear-gradient(90deg,#000,#0000 72%);mask-image:linear-gradient(90deg,#000,#0000 72%)}.nx-hero-badge{color:#bfdbfe;background:#3b82f624;border:1px solid #93c5fd4d;padding:8px 14px;font-size:.8125rem}.nx-hero h1{letter-spacing:-.04em;margin:22px 0 18px;font-size:clamp(44px,4.6vw,56px);line-height:1.06}.nx-hero h1 em{color:#93c5fd}.nx-hero-description{color:#e2e8f0c7;max-width:540px;font-size:1.0625rem;line-height:1.7}.nx-hero-actions{gap:12px;margin-top:30px}.nx-hero-actions .nx-btn{min-height:46px;padding:0 20px}.nx-hero-actions .nx-btn-primary{color:#1d4ed8;background:#fff;border-color:#fff}.nx-hero-actions .nx-btn-primary:hover{background:#dbeafe;border-color:#dbeafe}.nx-hero-actions .nx-btn-ghost{color:#fff;background:#ffffff0f;border-color:#ffffff3d}.nx-hero-actions .nx-btn-ghost:hover{background:#ffffff1f}.nx-hero-proof{gap:14px;margin-top:32px}.nx-hero-proof p{font-size:.875rem}.nx-hero-proof small{font-size:.75rem}.nx-avatar-stack span{border-color:#101f3d}.nx-avatar-stack span:first-child{background:#bfdbfe}.nx-avatar-stack span:nth-child(2){background:#c7d2fe}.nx-avatar-stack span:nth-child(3){background:#a5f3fc}.nx-avatar-stack span:nth-child(4){background:#93c5fd}.nx-hero-art{min-height:420px}.nx-hero-glow{background:#3b82f659}.nx-player{border:1px solid #ffffff14;border-radius:20px}.nx-stat-band{background:var(--surface);border-bottom:1px solid var(--border);border-top:1px solid var(--border)}.nx-stat-grid>div{padding:26px 16px}.nx-stat-grid strong{font-size:1.75rem}.nx-stat-grid span{color:var(--text-muted);font-size:.875rem}.nx-section{padding:76px 0}.nx-section-head{gap:24px;margin-bottom:34px}.nx-section-head h2,.nx-faq-copy h2,.nx-path-copy h2{font-size:clamp(32px,3.4vw,36px);line-height:1.15}.nx-section-copy{color:var(--text-muted);max-width:560px;font-size:1rem;line-height:1.7}.nx-text-link{color:var(--primary);font-size:.9375rem;font-weight:600}.nx-category-grid{gap:16px}.nx-category-card{border-radius:14px;padding:22px}.nx-category-card strong{font-size:1.0625rem}.nx-category-card small{font-size:.875rem}.nx-course-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}.course-card{background:var(--surface);border:1px solid var(--border);box-shadow:var(--shadow-sm);transition:border-color .2s var(--ease), box-shadow .2s var(--ease), transform .2s var(--ease);border-radius:18px;overflow:hidden}.course-card:hover{border-color:color-mix(in srgb, var(--primary) 36%, var(--border));box-shadow:var(--shadow);transform:translateY(-4px)}.course-content{padding:20px}.course-topline{margin-bottom:10px}.course-category{color:var(--primary);letter-spacing:.08em;font-size:.75rem}.course-rating{background:var(--surface-2);color:var(--text);border-radius:999px;padding:3px 8px;font-size:.8125rem}.course-card h3,.course-card .course-content h3,.course-content h3{margin:0 0 8px;font-size:1.1875rem;line-height:1.35}.course-description{color:var(--text-muted);font-size:.875rem;line-height:1.6}.course-byline{color:var(--text-muted);margin:12px 0 10px;font-size:.875rem}.course-meta{color:var(--text-muted);gap:6px 14px;font-size:.8125rem}.course-footer{border-top:1px solid var(--border);margin-top:16px;padding-top:14px}.price,.price-free{color:var(--text);font-size:1.125rem}.course-cta{color:var(--primary);font-size:.875rem;font-weight:600}.course-label{border-radius:999px;font-size:.75rem}.nx-bundle-banner{border-radius:18px}.nx-bundle-banner h3{font-size:1.375rem}.nx-path-grid{gap:56px}.nx-path-step span{background:var(--primary-soft);color:var(--primary-strong)}.nx-path-step strong{font-size:1.0625rem}.nx-path-step p{font-size:.9375rem}.nx-progress-card{box-shadow:var(--shadow);border-radius:20px}.nx-feature-grid{gap:18px}.nx-feature-card{border-radius:16px;padding:24px}.nx-feature-card h3{font-size:1.125rem}.nx-feature-card p{font-size:.9375rem}.nx-testimonial-section{background:var(--surface-2)}.nx-testimonial-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.nx-testimonial-card{background:var(--surface);border:1px solid var(--border);border-radius:18px;padding:26px}.nx-testimonial-card blockquote{font-size:1rem;line-height:1.7}.nx-testimonial-person strong{font-size:.9375rem}.nx-testimonial-person small{color:var(--text-muted);font-size:.8125rem}.nx-faq-grid{text-align:center;grid-template-columns:minmax(0,820px);justify-content:center;gap:26px}.nx-faq-copy{max-width:640px;margin:0 auto}.nx-faq-copy .nx-kicker{justify-content:center}.nx-faq-copy .nx-section-copy{margin-left:auto;margin-right:auto}.nx-faq-list{text-align:left;width:100%}.nx-faq-item{background:var(--surface);border:1px solid var(--border);border-radius:14px;margin-bottom:10px}.nx-faq-item summary{padding:18px 20px;font-size:1rem;font-weight:600}.nx-faq-item p{color:var(--text-muted);padding:0 20px 18px;font-size:.9375rem;line-height:1.7}.nx-cta-card{border-radius:22px}.catalog-page .page-hero,.course-details-page .page-hero{padding-bottom:28px}.catalog-page h1{font-size:clamp(34px,4vw,44px)}.catalog-content .course-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}.catalog-content .filter-layout aside .panel{top:calc(var(--header-h) + 18px);position:sticky}.filter-bar .field{font-size:.875rem}.nx-detail-layout{grid-template-columns:minmax(0,1fr) 360px;gap:48px;padding-top:40px}.nx-detail-stats{border-radius:14px}.nx-detail-stats strong{font-size:1.125rem}.nx-detail-tabs a{font-size:.875rem}.nx-enroll-card{background:var(--surface);border:1px solid var(--border);box-shadow:var(--shadow);top:calc(var(--header-h) + 20px);border-radius:18px;padding:24px;position:sticky}.nx-enroll-head h2{font-size:1.375rem}.nx-enroll-card .enroll-price .price,.nx-enroll-card .enroll-price .price-free{font-size:1.75rem}.nx-enroll-card .enroll-actions .button{min-height:46px;font-size:.9375rem}.site-footer.nx-footer{color:#e2e8f0;background:radial-gradient(circle at 8% 0,#2563eb38,#0000 34%),linear-gradient(160deg,#0b1220 0%,#0f1c33 60%,#111f3a 100%);border-top:1px solid #ffffff0f}.nx-footer-top{grid-template-columns:1.35fr repeat(3,minmax(0,1fr));gap:40px;padding:64px 0 40px}.nx-footer-links{display:contents}.nx-footer-links>div{flex-direction:column;gap:4px;display:flex}.nx-footer-links strong,.nx-footer-contact>strong{color:#e2e8f080;letter-spacing:.1em;margin-bottom:10px;font-size:.75rem}.nx-footer-links a{color:#e2e8f0c7;padding:5px 0;font-size:.875rem}.nx-footer-links a:hover{color:#93c5fd}.nx-footer .brand{font-size:1rem}.nx-footer-brand>p{color:#e2e8f09e;max-width:320px;font-size:.875rem;line-height:1.7}.nx-footer-contact{gap:8px;margin-top:18px}.nx-footer-contact>a,.nx-footer-contact>span{color:#e2e8f0c7;gap:8px;font-size:.875rem}.nx-footer-contact>a:hover{color:#93c5fd}.nx-footer-social{gap:10px}.nx-footer-social a{color:#e2e8f0a8;font-size:.8125rem}.nx-footer-social a:hover{color:#93c5fd}.nx-app-cta{border-radius:12px}.nx-app-cta small,.nx-pay-row span{font-size:.75rem}.nx-footer-newsletter{max-width:300px;margin-top:10px}.nx-footer-newsletter .newsletter-row input{border-radius:8px;font-size:.875rem}.nx-footer-newsletter .newsletter-row .button{font-size:.8125rem}.nx-footer-bottom{color:#e2e8f08c;border-top:1px solid #e2e8f01f;padding:20px 0 26px;font-size:.8125rem}.auth-page{background:radial-gradient(circle at 20% 10%, color-mix(in srgb, var(--primary) 12%, transparent), transparent 34%), radial-gradient(circle at 85% 90%, color-mix(in srgb, var(--primary) 9%, transparent), transparent 36%), var(--page);grid-template-columns:1fr;place-items:center;min-height:100vh;padding:48px 24px;display:grid}.auth-side{display:none}.auth-card-wrap{flex-direction:column;align-items:center;width:100%;padding:0;display:flex}.mobile-auth-brand{margin-bottom:22px;display:flex}.auth-card{background:var(--surface);border:1px solid var(--border);box-shadow:var(--shadow);border-radius:20px;width:100%;max-width:440px;padding:38px}.auth-card h1,.auth-card h2{letter-spacing:-.035em;margin-bottom:10px;font-size:clamp(28px,3vw,32px);line-height:1.15}.auth-description{color:var(--text-muted);font-size:.9375rem;line-height:1.65}.auth-label{margin-top:16px}.auth-submit{width:100%;min-height:46px;margin-top:22px}.auth-divider{color:var(--text-muted);margin:22px 0;font-size:.8125rem}.oauth-button{border-radius:10px;padding:13px;font-size:.875rem}.auth-footer{color:var(--text-muted);margin-top:24px;font-size:.875rem}.auth-footer a{color:var(--primary)}.auth-error{color:var(--danger-text);border-radius:8px;padding:12px 14px;font-size:.875rem}.auth-notice{color:var(--primary-strong);border-radius:8px;padding:12px 14px;font-size:.875rem}.demo-switch{background:var(--surface-2);border-radius:10px}.app-shell.nx-modern-shell{background:var(--page);grid-template-columns:var(--sidebar-w) minmax(0, 1fr)}.nx-modern-shell .app-sidebar{background:var(--surface);border-right:1px solid var(--border);color:var(--text);scrollbar-color:var(--border) transparent;padding:20px 16px}.nx-modern-shell .app-sidebar .brand{color:var(--text);font-size:.9375rem}.nx-modern-shell .sidebar-user{background:var(--surface-2);border:1px solid var(--border);border-radius:12px;padding:10px}.nx-modern-shell .sidebar-role{color:var(--text-muted);letter-spacing:.12em;margin:10px 10px 16px;font-size:.6875rem}.nx-modern-shell .sidebar-group{color:var(--text-muted);letter-spacing:.12em;margin:18px 10px 6px;font-size:.6875rem}.nx-modern-shell .app-sidebar nav{gap:3px}.nx-modern-shell .app-sidebar nav a{color:var(--text-muted);border-radius:9px;gap:11px;padding:10px 11px;font-size:.875rem;font-weight:500}.nx-modern-shell .app-sidebar nav a svg{color:var(--text-muted);flex:0 0 18px}.nx-modern-shell .app-sidebar nav a:hover{background:var(--surface-2);color:var(--text)}.nx-modern-shell .app-sidebar nav a:hover svg{color:var(--text)}.nx-modern-shell .app-sidebar nav a.active{background:var(--primary);color:#fff;font-weight:600}.nx-modern-shell .app-sidebar nav a.active svg{color:#fff}.nx-modern-shell .app-sidebar nav a.active .count-pill{color:var(--primary-strong);background:#fff}.nx-modern-shell .sidebar-nav-group{border-top-color:var(--border)}.nx-modern-shell .sidebar-nav-group>summary{color:var(--text-muted);letter-spacing:.12em;border-radius:8px;padding:9px 11px;font-size:.6875rem}.nx-modern-shell .sidebar-nav-group>summary:hover{background:var(--surface-2);color:var(--text)}.nx-modern-shell .count-pill{background:var(--danger);color:#fff;font-size:.6875rem}.nx-modern-shell .app-sidebar-foot{border-top-color:var(--border)}.nx-modern-shell .app-sidebar-logout:hover{color:var(--danger-text)}@media (min-width:1024px){.app-shell.nx-modern-shell[data-sidebar=collapsed]{grid-template-columns:0 minmax(0,1fr)}.app-shell.nx-modern-shell[data-sidebar=collapsed] .app-sidebar{display:none}}.sidebar-collapse{border:1px solid var(--border);color:var(--text-muted);cursor:pointer;background:0 0;border-radius:8px;justify-content:center;align-items:center;width:34px;height:34px;padding:0;display:inline-flex}.sidebar-collapse:hover{background:var(--surface-2);color:var(--text)}.sidebar-collapse svg{width:17px;height:17px}.nx-modern-shell .app-main{background:var(--page)}.nx-modern-shell .app-topbar{-webkit-backdrop-filter:blur(16px)saturate(160%);backdrop-filter:blur(16px)saturate(160%);background:color-mix(in srgb, var(--surface) 86%, transparent);border-bottom:1px solid 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