:root{
  --nu-green:#08734a;
  --nu-green-dark:#055536;
  --nu-green-deep:#062d20;
  --nu-green-soft:#eaf7f1;
  --nu-gold:#f3b821;
  --nu-gold-soft:#fff5d8;
  --nu-red:#dc3545;
  --nu-blue:#2878b5;
  --nu-purple:#7854ad;
  --nu-orange:#cc720b;
  --nu-ink:#172b21;
  --nu-text:#374a40;
  --nu-muted:#718078;
  --nu-border:#dce8e1;
  --nu-bg:#f3f7f4;
  --nu-white:#fff;
  --nu-radius-sm:12px;
  --nu-radius:20px;
  --nu-radius-lg:28px;
  --nu-shadow:0 17px 48px rgba(15,61,39,.08);
  --nu-shadow-strong:0 27px 72px rgba(7,50,30,.15);
  --nu-font:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:118px}
body{margin:0!important;color:var(--nu-text)!important;background:radial-gradient(circle at 5% 2%,rgba(243,184,33,.055),transparent 23%),var(--nu-bg)!important;font-family:var(--nu-font)!important;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
a{text-decoration:none}
button,input,select,textarea{font:inherit}
.nu-study-container{width:min(1240px,calc(100% - 34px));margin:0 auto}
.nu-study-topbar{min-height:34px;display:flex;align-items:center;color:rgba(255,255,255,.72);background:var(--nu-green-deep);font-size:.65rem;font-weight:800;letter-spacing:.15px}
.nu-study-topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:34px}
.nu-study-topbar span{display:inline-flex;align-items:center;gap:7px}.nu-study-dot{width:7px;height:7px;border-radius:50%;background:var(--nu-gold);box-shadow:0 0 0 4px rgba(243,184,33,.12)}
.nu-study-topbar-note{opacity:.82}
.nu-study-header{position:sticky;top:0;z-index:1200;min-height:76px;display:flex;align-items:center;border-bottom:1px solid rgba(5,85,54,.08);background:rgba(255,255,255,.965);box-shadow:0 8px 28px rgba(20,60,39,.06);backdrop-filter:blur(14px)}
.nu-study-header-inner{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:18px}
.nu-study-brand{flex:0 0 auto;display:inline-flex;align-items:center;gap:11px;color:inherit}.nu-study-brand img{width:48px;height:48px;padding:4px;border:1px solid var(--nu-border);border-radius:14px;background:#fff;object-fit:contain}.nu-study-brand-copy strong,.nu-study-brand-copy small{display:block}.nu-study-brand-copy strong{color:var(--nu-green-dark);font-size:.95rem;font-weight:900;letter-spacing:-.2px}.nu-study-brand-copy small{margin-top:2px;color:#89978f;font-size:.52rem;font-weight:850;letter-spacing:.9px;text-transform:uppercase}
.nu-study-main-nav{display:flex;align-items:center;gap:3px}.nu-study-main-nav a{min-height:41px;display:inline-flex;align-items:center;padding:0 11px;border-radius:10px;color:#52675b;font-size:.7rem;font-weight:760;transition:color .2s ease,background .2s ease}.nu-study-main-nav a:hover,.nu-study-main-nav a.is-active{color:var(--nu-green);background:var(--nu-green-soft)}
.nu-study-header-actions{display:flex;align-items:center;gap:8px}.nu-study-header-search{position:relative;width:min(235px,20vw)}.nu-study-header-search>span{position:absolute;top:50%;left:14px;color:#89968f;font-size:.82rem;transform:translateY(-50%)}.nu-study-header-search input{width:100%;min-height:42px;padding:0 13px 0 38px;border:1px solid var(--nu-border);border-radius:12px;color:#30463a;background:#f6faf7;font-size:.7rem;outline:none}.nu-study-header-search input:focus{border-color:var(--nu-green);background:#fff;box-shadow:0 0 0 4px rgba(8,115,74,.1)}
.nu-study-user-chip{display:flex;align-items:center;gap:7px;max-width:150px;padding:4px 9px 4px 4px;border:1px solid var(--nu-border);border-radius:12px;background:#fbfdfc}.nu-study-avatar{width:34px;height:34px;display:grid;place-items:center;border-radius:10px;color:#fff;background:linear-gradient(145deg,var(--nu-green-dark),var(--nu-green));font-size:.7rem;font-weight:900}.nu-study-user-name{overflow:hidden;color:var(--nu-ink);font-size:.64rem;font-weight:800;text-overflow:ellipsis;white-space:nowrap}.nu-study-logout,.nu-study-menu-button{width:42px;height:42px;display:inline-flex;align-items:center;justify-content:center;border:0;border-radius:12px;color:var(--nu-green);background:var(--nu-green-soft);font-size:1rem;font-weight:900;cursor:pointer}.nu-study-menu-button{display:none}.nu-study-logout:hover,.nu-study-menu-button:hover{color:#fff;background:var(--nu-green)}
.nu-study-premium-placeholder,#study-premium-badge{min-height:42px!important;display:inline-flex!important;align-items:center!important;justify-content:center!important;gap:6px!important;padding:0 12px!important;border:1px solid #f2df9d!important;border-radius:11px!important;color:#6c5200!important;background:var(--nu-gold-soft)!important;box-shadow:none!important;font-size:.62rem!important;font-weight:900!important;white-space:nowrap!important;cursor:pointer!important;transform:none!important}.nu-study-premium-placeholder:hover,#study-premium-badge:hover{background:#ffefbd!important}.nu-study-premium-placeholder.is-premium,#study-premium-badge.is-premium{color:#fff!important;border-color:var(--nu-green)!important;background:var(--nu-green)!important}

/* Existing Tailwind-era content, restyled to the main NOUN Update language. */
.gradient-bg{background:#fff!important}.bg-gray-100{background:transparent!important}.bg-white{background:#fff!important}.text-emerald-800,.text-emerald-700,.text-emerald-600{color:var(--nu-green)!important}.bg-emerald-600,.bg-emerald-700,.bg-emerald-800{background-color:var(--nu-green)!important}.bg-emerald-100{background-color:var(--nu-green-soft)!important}.border-emerald-500,.border-emerald-600{border-color:var(--nu-green)!important}
.shadow,.shadow-md,.shadow-lg,.shadow-xl{box-shadow:var(--nu-shadow)!important}.rounded-xl,.rounded-2xl{border-radius:var(--nu-radius)!important}
.bg-white.rounded-xl,.bg-white.rounded-2xl,.bg-white.shadow,.bg-white.shadow-md,.bg-white.shadow-lg{border:1px solid var(--nu-border)!important}
main h1,main h2,main h3,main h4{color:var(--nu-ink)}
main p,.text-gray-500,.text-gray-600{color:var(--nu-muted)!important}
input,select,textarea,.form-control,.form-select{border-color:var(--nu-border)!important;background:#fff;color:var(--nu-text);outline:none}.form-control:focus,.form-select:focus,input:focus,select:focus,textarea:focus{border-color:var(--nu-green)!important;box-shadow:0 0 0 4px rgba(8,115,74,.1)!important}
button,.btn,a[class*="bg-emerald"],a[class*="bg-teal"]{transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease}
button:hover,.btn:hover{transform:translateY(-1px)}
.bg-gradient-to-br.from-emerald-600,.bg-gradient-to-r.from-emerald-600{background:linear-gradient(135deg,var(--nu-green-dark),var(--nu-green))!important}

/* Desktop side cards */
aside .bg-white{border:1px solid var(--nu-border)!important;border-radius:var(--nu-radius)!important;box-shadow:var(--nu-shadow)!important}
aside h3{color:var(--nu-green-dark)!important;font-weight:900!important}
aside a{border-radius:10px!important;color:#50645a!important;font-size:.7rem!important}aside a:hover{color:var(--nu-green)!important;background:var(--nu-green-soft)!important}
aside a.bg-emerald-100,aside a.bg-emerald-800{color:var(--nu-green)!important;background:var(--nu-green-soft)!important}

/* Bottom app navigation */
body>nav.fixed.bottom-0{border-top:1px solid var(--nu-border)!important;background:rgba(255,255,255,.98)!important;box-shadow:0 -10px 28px rgba(15,61,39,.08)!important;backdrop-filter:blur(14px)}body>nav.fixed.bottom-0 a{color:#7a8981!important;font-size:.68rem!important}body>nav.fixed.bottom-0 a.text-emerald-600{color:var(--nu-green)!important}body>nav.fixed.bottom-0 span.text-2xl{font-size:1.2rem!important}

/* Old mobile sidebars inherit main-site drawer styling. */
#sidebar-overlay{background:rgba(3,20,12,.65)!important}#sidebar-mobile{width:min(360px,91vw)!important;color:var(--nu-text)!important;background:#fff!important;box-shadow:-25px 0 65px rgba(4,35,19,.22)!important}#sidebar-mobile>div:first-child{border-color:var(--nu-border)!important;color:var(--nu-green-dark)!important;background:#fff!important}#sidebar-mobile nav a{min-height:47px;color:#40564a!important;border-radius:11px!important;font-size:.74rem!important}#sidebar-mobile nav a:hover,#sidebar-mobile nav a.bg-emerald-800{color:var(--nu-green)!important;background:var(--nu-green-soft)!important}#closeSidebarMobile{color:var(--nu-muted)!important}
#mobile-menu{border-bottom:1px solid var(--nu-border)!important;color:var(--nu-text)!important;background:#fff!important;box-shadow:0 12px 28px rgba(15,61,39,.08)!important}#mobile-menu a{color:#40564a!important;border-color:var(--nu-green)!important}#mobile-menu a:hover{background:var(--nu-green-soft)!important}

/* Premium surfaces */
.study-premium-toast{position:fixed;right:18px;top:122px;z-index:9999;max-width:min(380px,calc(100vw - 36px));padding:14px 16px;border:1px solid var(--nu-border);border-radius:16px;background:#fff;color:var(--nu-ink);box-shadow:var(--nu-shadow-strong);font-size:.74rem;line-height:1.55}.study-premium-toast.error{border-color:#fecaca;color:#991b1b;background:#fff7f7}.study-premium-toast.success{border-color:#a7f3d0;color:#065f46;background:#f0fdf4}.study-premium-upgrade{min-height:42px;display:inline-flex;align-items:center;justify-content:center;gap:7px;padding:0 14px;border:0;border-radius:10px;color:#fff;background:var(--nu-green);font-size:.64rem;font-weight:900;cursor:pointer;text-decoration:none}.study-premium-gate{padding:20px;border:1px solid #cfe7da;border-radius:18px;background:linear-gradient(135deg,var(--nu-green-soft),#fff);color:var(--nu-ink)}.study-premium-banner{position:relative;overflow:hidden;margin-bottom:1.5rem;padding:20px 22px;border:1px solid #efd98e;border-radius:var(--nu-radius);background:radial-gradient(circle at 92% 12%,rgba(243,184,33,.18),transparent 28%),#fff;box-shadow:var(--nu-shadow)}.study-premium-banner:after{content:'★';position:absolute;right:18px;top:-15px;color:rgba(243,184,33,.11);font-size:78px;pointer-events:none}.study-premium-banner h3{margin:0 0 5px;color:var(--nu-green-dark);font-size:1.05rem;font-weight:900}.study-premium-banner p{margin:0;color:var(--nu-muted);font-size:.72rem;line-height:1.65;max-width:760px}.study-premium-banner-row{display:flex;gap:14px;align-items:center;justify-content:space-between}.study-premium-usage{margin-top:9px;color:#7e8d84;font-size:.6rem;font-weight:800}

.nu-study-footer{margin-top:54px;border-top:1px solid var(--nu-border);color:#6e7e75;background:#fff}.nu-study-footer-inner{min-height:92px;display:flex;align-items:center;justify-content:space-between;gap:20px}.nu-study-footer strong,.nu-study-footer span{display:block}.nu-study-footer strong{color:var(--nu-green-dark);font-size:.72rem}.nu-study-footer span{margin-top:4px;font-size:.56rem}.nu-study-footer-links{display:flex;gap:6px}.nu-study-footer-links a{padding:8px 10px;border-radius:9px;color:#607269;font-size:.58rem;font-weight:800}.nu-study-footer-links a:hover{color:var(--nu-green);background:var(--nu-green-soft)}

/* Course workspace */
body.nu-course-page{background:var(--nu-bg)!important}.nu-course-page .app-container{border:1px solid var(--nu-border)!important;border-radius:var(--nu-radius-lg)!important;background:#fff!important;box-shadow:var(--nu-shadow)!important}.nu-course-page .app-header{border-bottom:1px solid var(--nu-border)!important;background:#fbfdfc!important}.nu-course-page .course-title{color:var(--nu-green-dark)!important}.nu-course-page .stat-oval{border:1px solid var(--nu-border);background:var(--nu-green-soft)!important;box-shadow:none!important}.nu-course-page .module-item{border:1px solid var(--nu-border)!important;border-radius:16px!important;background:#fff!important;box-shadow:0 8px 24px rgba(15,61,39,.04)}.nu-course-page .module-item:hover{border-color:#c6dccf!important;box-shadow:0 14px 30px rgba(15,61,39,.09)!important}.nu-course-page .module-icon{color:var(--nu-green)!important;background:var(--nu-green-soft)!important}.nu-course-page .module-item.completed .module-icon{color:#fff!important;background:var(--nu-green)!important}.nu-course-page .app-nav{border-top:1px solid var(--nu-border)!important;background:rgba(255,255,255,.98)!important;box-shadow:0 -8px 24px rgba(15,61,39,.05)}.nu-course-page .nav-item.active,.nu-course-page .nav-item:hover{color:var(--nu-green)!important;background:var(--nu-green-soft)!important}.nu-course-page .reader-header,.nu-course-page .modal-header{border-color:var(--nu-border)!important;background:#fbfdfc!important}.nu-course-page .modal-content{overflow:hidden;border:1px solid var(--nu-border)!important;border-radius:20px!important;box-shadow:var(--nu-shadow-strong)!important}.nu-course-page #aiModal .modal-header{color:#fff!important;background:var(--nu-green-dark)!important}.nu-course-page .btn-success,.nu-course-page .btn-primary{border-color:var(--nu-green)!important;background:var(--nu-green)!important}.nu-course-page .btn-outline-success{color:var(--nu-green)!important;border-color:var(--nu-green)!important}.nu-course-page .btn-outline-success:hover{color:#fff!important;background:var(--nu-green)!important}.nu-course-page .slide-panel{border-left:1px solid var(--nu-border);background:#fff!important;box-shadow:-25px 0 65px rgba(4,35,19,.18)!important}

/* Auth and public marketing helpers */
.nu-auth-page{min-height:100vh;display:grid;grid-template-columns:minmax(0,1.05fr) minmax(420px,.95fr);background:var(--nu-bg)}.nu-auth-visual{position:relative;display:flex;align-items:center;overflow:hidden;padding:64px;color:#fff;background:radial-gradient(circle at 82% 12%,rgba(243,184,33,.25),transparent 24%),linear-gradient(122deg,#061f16 0%,#075037 52%,#0b8055 100%)}.nu-auth-visual:after{position:absolute;right:-180px;bottom:-270px;width:640px;height:640px;border:110px solid rgba(255,255,255,.045);border-radius:50%;content:""}.nu-auth-visual-inner{position:relative;z-index:2;max-width:650px}.nu-auth-brand{display:inline-flex;align-items:center;gap:11px}.nu-auth-brand img{width:54px;height:54px;padding:5px;border:1px solid rgba(255,255,255,.2);border-radius:15px;background:#fff}.nu-auth-kicker{display:inline-flex;align-items:center;gap:8px;margin-top:48px;padding:8px 11px;border:1px solid rgba(255,255,255,.15);border-radius:999px;color:rgba(255,255,255,.84);background:rgba(255,255,255,.07);font-size:.6rem;font-weight:850;letter-spacing:.75px;text-transform:uppercase}.nu-auth-visual h1{margin:18px 0 0;color:#fff;font-size:clamp(2.4rem,5.5vw,4.9rem);font-weight:900;letter-spacing:-3px;line-height:.98}.nu-auth-visual p{max-width:620px;margin:22px 0 0;color:rgba(255,255,255,.7);font-size:.82rem;line-height:1.8}.nu-auth-benefits{display:grid;gap:10px;margin-top:28px}.nu-auth-benefit{display:grid;grid-template-columns:42px 1fr;gap:11px;align-items:center;padding:11px;border:1px solid rgba(255,255,255,.105);border-radius:14px;background:rgba(255,255,255,.055)}.nu-auth-benefit b{font-size:.68rem}.nu-auth-benefit span{display:block;margin-top:3px;color:rgba(255,255,255,.55);font-size:.55rem}.nu-auth-benefit i{width:42px;height:42px;display:grid;place-items:center;border-radius:12px;color:var(--nu-gold);background:rgba(255,255,255,.09);font-style:normal}.nu-auth-form-wrap{display:grid;place-items:center;padding:38px}.nu-auth-card{width:min(500px,100%);padding:30px;border:1px solid var(--nu-border);border-radius:var(--nu-radius-lg);background:#fff;box-shadow:var(--nu-shadow-strong)}.nu-auth-card-head{display:flex;align-items:center;gap:12px;padding-bottom:20px;border-bottom:1px solid var(--nu-border)}.nu-auth-card-head img{width:46px;height:46px;padding:4px;border:1px solid var(--nu-border);border-radius:13px}.nu-auth-card-head h2{margin:0;color:var(--nu-ink);font-size:1.35rem;font-weight:900;letter-spacing:-.5px}.nu-auth-card-head p{margin:4px 0 0;color:var(--nu-muted);font-size:.65rem}.nu-auth-form{display:grid;gap:15px;margin-top:22px}.nu-auth-field label{display:block;margin-bottom:6px;color:#40564a;font-size:.62rem;font-weight:850}.nu-auth-field input,.nu-auth-field select{width:100%;min-height:48px;padding:0 14px;border:1px solid var(--nu-border);border-radius:12px;background:#f8fbf9;font-size:.72rem}.nu-auth-submit{min-height:49px;border:0;border-radius:12px;color:#fff;background:var(--nu-green);box-shadow:0 12px 24px rgba(8,115,74,.18);font-size:.7rem;font-weight:900;cursor:pointer}.nu-auth-submit:disabled{opacity:.65;cursor:wait}.nu-auth-switch{margin:18px 0 0;color:var(--nu-muted);font-size:.64rem;text-align:center}.nu-auth-switch a{color:var(--nu-green);font-weight:900}.nu-auth-alert{display:none;padding:11px 12px;border-radius:10px;color:#991b1b;background:#fff1f2;font-size:.64rem;line-height:1.5}.nu-auth-alert.show{display:block}

@media(max-width:1120px){.nu-study-main-nav{display:none}.nu-study-menu-button{display:inline-flex}.nu-study-header-search{width:min(260px,31vw)}}
@media(max-width:780px){.nu-study-container{width:min(100% - 24px,1240px)}.nu-study-topbar-note{display:none}.nu-study-header{min-height:68px}.nu-study-header-inner{min-height:68px;gap:9px}.nu-study-brand img{width:42px;height:42px}.nu-study-brand-copy strong{font-size:.82rem}.nu-study-user-chip{display:none}.nu-study-header-search{display:none}.nu-study-premium-placeholder,#study-premium-badge{min-height:38px!important;padding:0 9px!important;font-size:.56rem!important}.nu-study-logout,.nu-study-menu-button{width:38px;height:38px}.study-premium-toast{top:108px}.study-premium-banner-row{align-items:flex-start;flex-direction:column}.study-premium-banner .study-premium-upgrade{width:100%}.nu-study-footer-inner{padding:24px 0;align-items:flex-start;flex-direction:column}.nu-auth-page{grid-template-columns:1fr}.nu-auth-visual{min-height:410px;padding:38px 24px}.nu-auth-visual h1{font-size:clamp(2.3rem,11vw,4.1rem)}.nu-auth-form-wrap{padding:24px 14px 40px}.nu-auth-card{padding:23px;border-radius:22px}}
@media(max-width:520px){.nu-study-brand-copy{display:none}.nu-study-premium-placeholder,#study-premium-badge{max-width:105px;overflow:hidden;text-overflow:ellipsis}.nu-study-topbar{font-size:.58rem}.nu-course-page .app-container{margin:8px!important;border-radius:18px!important}}

@media(max-width:780px){.nu-study-footer{display:none}}

.max-w-screen-2xl{max-width:1240px!important}.text-teal-700,.text-teal-600{color:var(--nu-green)!important}.bg-teal-700,.bg-teal-600{background-color:var(--nu-green)!important}.hover\:bg-teal-600:hover,.hover\:bg-teal-700:hover{background-color:var(--nu-green-dark)!important}.hover\:bg-emerald-700:hover,.hover\:bg-emerald-600:hover{background-color:var(--nu-green-dark)!important}.bg-green-500,.bg-lime-500{background-color:var(--nu-green)!important}.border-gray-200,.border-gray-300{border-color:var(--nu-border)!important}.bg-gray-50{background-color:#f8fbf9!important}.bg-gray-200{background-color:#edf3ef!important}.hover\:bg-gray-100:hover{background-color:var(--nu-green-soft)!important}
@media(max-width:1120px){
  #sidebar-mobile{display:flex!important}
  #mobile-menu:not(.hidden){display:block!important}
}


/* V10 shared mobile Study Assistant behaviour */
.assistant-backdrop{position:fixed;inset:0;z-index:2140;background:rgba(5,28,19,.48);backdrop-filter:blur(2px);opacity:0;visibility:hidden;pointer-events:none;transition:opacity .25s ease,visibility .25s ease}
.assistant-backdrop.active{opacity:1;visibility:visible;pointer-events:auto}
#assistantPanel.slide-panel,[data-study-assistant].slide-panel{z-index:2150!important;height:100dvh!important;max-height:100dvh!important;overflow-y:auto;overscroll-behavior:contain}
.assistant-close{flex:0 0 44px;width:44px;height:44px;display:grid;place-items:center;border:1px solid var(--nu-border,#dce8e1);border-radius:13px;color:var(--nu-green-dark,#055536);background:#f6faf8;font:inherit;font-size:1.8rem;line-height:1;cursor:pointer;touch-action:manipulation}
.assistant-close:hover,.assistant-close:focus-visible{color:#fff;background:var(--nu-green,#08734a);border-color:var(--nu-green,#08734a);outline:0}
body.assistant-open{overflow:hidden;touch-action:none}
@media(max-width:575.98px){#assistantPanel.slide-panel,[data-study-assistant].slide-panel{width:min(92vw,390px)!important;max-width:92vw!important;padding-bottom:max(22px,env(safe-area-inset-bottom))!important}}