:root{--brand:#066ac9;--ink:#24292e;--subtle:#64748b;--paper:#f6f8fb}
body{background:var(--paper);color:var(--ink);font-family:Roboto,system-ui,sans-serif}
h1,h2,h3,.brand{font-family:Heebo,Roboto,system-ui,sans-serif}
a{text-decoration:none}a:hover{text-decoration:underline}
.site-header{background:#fff;position:relative;z-index:2}.brand{display:flex;align-items:center;gap:.65rem;color:#202b35;font-size:1.35rem;font-weight:700}.brand:hover{text-decoration:none;color:#202b35}.brand-mark{display:grid;place-items:center;width:42px;height:42px;border-radius:12px;background:var(--brand);color:#fff;font-weight:700;font-size:1.5rem}.site-nav{display:flex;align-items:center;gap:1.25rem;flex-wrap:wrap}.site-nav>a:not(.btn){font-weight:500;color:#3d4c59}.site-nav form{margin:0}.user-pill{background:#eef5fc;color:#13589d;padding:.45rem .8rem;border-radius:50px;font-size:.875rem}
.main-content{min-height:calc(100vh - 175px);padding-top:2.5rem;padding-bottom:4rem}.main-content>h1:first-child{font-size:2.25rem;margin-bottom:1.5rem}.site-footer{background:#162b40;color:#fff;padding:1.5rem 0}.site-footer span{float:right;color:#b9d1e8}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(290px,1fr));gap:1.25rem}.card{border:1px solid #e5eaf1;border-radius:1rem;background:white;box-shadow:0 10px 30px rgba(25,48,76,.06)}.grid>.card{padding:1.6rem;min-height:240px;display:flex;flex-direction:column}.grid>.card h2{font-size:1.4rem}.grid>.card p:last-of-type{flex:1}.muted{color:var(--subtle)}.button{display:inline-flex;align-items:center;justify-content:center;background:var(--brand);color:white;border-radius:.55rem;padding:.68rem 1.1rem;font-weight:600;border:0}.button:hover{color:white;background:#0558a5;text-decoration:none}.button.ghost,.ghost{background:#edf4fa;color:#125995}.button.ghost:hover,.ghost:hover{background:#dceafa;color:#125995}button:not(.btn){border:0;border-radius:.55rem;background:var(--brand);color:#fff;padding:.68rem 1.1rem;cursor:pointer;font-weight:600}button.ghost{background:#edf4fa;color:#125995}
.main-content>.card,.section.card{padding:1.8rem}.main-content>.card h1{font-size:2.4rem}.lesson-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:1.5rem;align-items:start}.lesson-layout .section{margin-top:1.25rem}.lesson-layout .section.card{padding:1.6rem}.lesson-layout .section.card h1{font-size:1.75rem}.lesson-layout .section.card h2{font-size:1.3rem}.sidebar{position:sticky;top:1.5rem;padding:1.25rem!important;max-height:calc(100vh - 3rem);overflow:auto}.sidebar h2{font-size:1.25rem;margin-bottom:1rem}.lesson-link{display:flex;gap:.8rem;align-items:center;padding:.75rem .6rem;border-radius:.55rem;border-bottom:1px solid #eff2f6;color:#34475b}.lesson-link>span:first-child{display:grid;place-items:center;flex:none;background:#eef5fc;color:var(--brand);border-radius:50%;width:30px;height:30px;font-size:.85rem;font-weight:700}.lesson-link.active{background:#e9f3fe;color:#075aa9;font-weight:700}.lesson-link.active>span:first-child{background:var(--brand);color:#fff}.lesson-link:hover{text-decoration:none;background:#f4f8fd}
.video{aspect-ratio:16/9;background:#17283a;color:white;border-radius:1rem;display:grid;place-items:center;overflow:hidden;position:relative}.video:before{content:'';position:absolute;inset:0;background:radial-gradient(circle at 32% 20%,#215f96 0,transparent 42%),linear-gradient(120deg,#142338,#122d49 55%,#061727)}.video-placeholder{position:relative;text-align:center;padding:2rem;max-width:470px}.video-placeholder:before{content:'▶';display:grid;place-items:center;width:74px;height:74px;border-radius:50%;background:#fff;color:var(--brand);font-size:1.4rem;margin:0 auto 1.2rem;box-shadow:0 8px 28px #0005}.video-placeholder h2{color:white;font-size:1.4rem}.video-placeholder p{color:#d5e7f5}.actions{display:flex;gap:.75rem;align-items:center;flex-wrap:wrap}.alert{background:#e9f3fe;color:#164e80;padding:.85rem;border-radius:.5rem;margin:1rem 0}.alert.error{background:#fff1ee;color:#9b3535}
.form{max-width:460px;margin:3rem auto;padding:2rem}.form label,.main-content form label{display:block;font-weight:600;margin:.8rem 0 .3rem}.form input:not([type=hidden]),.main-content form input:not([type=hidden]):not([type=checkbox]):not([type=file]),.main-content textarea{display:block;width:100%;padding:.68rem .85rem;border:1px solid #d5dee8;border-radius:.5rem}.main-content textarea{min-height:12rem}.main-content input[type=file]{max-width:100%}
.next-overlay{position:fixed;inset:0;z-index:20;background:#0b1d34df;color:white;display:grid;place-items:center}.next-overlay[hidden]{display:none}.next-box{text-align:center;padding:2rem;max-width:480px}.next-box h2{color:white}.next-box .actions{justify-content:center}
@media(max-width:900px){.lesson-layout{grid-template-columns:1fr}.sidebar{position:static;max-height:none}.main-content{padding-top:1.5rem}.site-footer span{float:none;display:block}}
@media(max-width:620px){.site-nav{gap:.6rem}.user-pill{display:none}.brand{font-size:1.1rem}.main-content>.card,.section.card{padding:1.2rem}.main-content>.card h1{font-size:1.8rem}}
.catalog-hero{background:linear-gradient(108deg,#eef6ff,#e6f2fe 62%,#d9ebff);border-radius:1.1rem;min-height:265px;display:flex;justify-content:space-between;align-items:center;padding:2.25rem 3rem;overflow:hidden;position:relative}.catalog-hero>div:first-child{position:relative;z-index:1;max-width:630px}.catalog-hero h1{font-size:clamp(2rem,3vw,2.8rem);margin:.4rem 0}.catalog-hero p{font-size:1.07rem;color:#526983;margin:0}.eyebrow{font-size:.76rem;letter-spacing:.13em;font-weight:700;color:#0872ca}.hero-art{position:relative;width:310px;height:210px;flex:none}.hero-art:before,.hero-art:after{content:'';position:absolute;border-radius:26px;transform:rotate(-13deg)}.hero-art:before{width:220px;height:175px;right:30px;top:12px;background:#9ccbf8}.hero-art:after{width:220px;height:175px;right:15px;top:31px;background:linear-gradient(135deg,#348de2,#0758ac);box-shadow:0 20px 30px #1168bc40}.hero-play{position:absolute;z-index:1;right:98px;top:82px;background:#fff;color:#066ac9;width:58px;height:58px;display:grid;place-items:center;border-radius:50%;font-size:1.1rem;box-shadow:0 8px 22px #003c824a}.hero-chip{position:absolute;z-index:2;background:white;color:#216397;font-size:.82rem;font-weight:700;padding:.45rem .9rem;border-radius:50px;box-shadow:0 8px 25px #003c8229}.chip-one{left:0;top:35px}.chip-two{right:0;bottom:12px}.catalog-heading{display:flex;align-items:end;justify-content:space-between;margin:2.5rem 0 1.25rem}.catalog-heading h2{font-size:1.75rem;margin:.15rem 0 0}.course-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,370px));gap:1.25rem}.course-card{background:white;border:1px solid #e0e9f3;box-shadow:0 10px 30px #19304c0d;border-radius:1rem;overflow:hidden;display:flex;flex-direction:column}.course-art{height:188px;position:relative;background:radial-gradient(circle at 72% 25%,#87c2ff 0,transparent 25%),linear-gradient(130deg,#263f72,#086ec5);display:grid;place-items:center}.course-art:after{content:'';position:absolute;width:160px;height:160px;border:2px solid #ffffff52;border-radius:50%;transform:translate(55px,34px)}.course-art-badge{position:absolute;top:18px;left:18px;color:#fff;background:#ffffff36;border:1px solid #ffffff75;border-radius:50px;font-size:.68rem;font-weight:700;letter-spacing:.12em;padding:.3rem .65rem}.course-art-symbol{color:#fff;background:#ffffff3d;border:2px solid #ffffffba;border-radius:20px;padding:.25rem 1.2rem;font-size:3rem;transform:rotate(-10deg);box-shadow:0 12px 25px #003d7440}.course-card-body{padding:1.35rem;display:flex;flex-direction:column;flex:1}.course-count{color:#0872ca;font-size:.85rem;font-weight:600}.course-card h3{font-size:1.32rem;margin:.7rem 0}.course-card p{color:#637385;flex:1;min-height:3.5em}.course-card .button{align-self:flex-start;gap:1.3rem}.empty-state{background:#fff;border:1px dashed #bbd2ea;border-radius:1rem;padding:2rem;color:#526983}.course-grid:empty{display:none}
@media(max-width:760px){.catalog-hero{padding:2rem;min-height:220px}.hero-art{display:none}.course-grid{grid-template-columns:repeat(auto-fill,minmax(265px,1fr))}}
.admin-shell{min-height:100vh;display:grid;grid-template-columns:295px minmax(0,1fr);background:#edf0f2}.admin-rail{background:#24282c;color:white;display:flex;flex-direction:column;min-height:100vh;position:sticky;top:0;height:100vh;padding:1.6rem 1.2rem}.admin-brand{color:white;font-size:1.35rem;font-family:Heebo,system-ui,sans-serif;font-weight:700;display:flex;align-items:center;gap:.55rem;margin:.2rem .5rem 2.3rem;white-space:nowrap}.admin-brand:hover{color:white;text-decoration:none}.admin-brand strong{font-weight:700}.admin-logo{background:#fff;color:#e86f2e;border-radius:50%;width:38px;height:38px;display:grid;place-items:center;font-size:1.45rem}.admin-rail nav{display:flex;flex-direction:column;gap:.35rem}.admin-rail-label{font-size:.78rem;color:#8d969f;letter-spacing:.05em;margin:1.3rem .75rem .45rem}.admin-rail-link{color:#e2e5e7;padding:.7rem .8rem;border-radius:.5rem;font-weight:500}.admin-rail-link span{display:inline-block;width:29px;text-align:center;font-size:1.15rem}.admin-rail-link:hover,.admin-rail-link.active{background:#343b42;color:#55aafa;text-decoration:none}.admin-rail-footer{margin-top:auto;border-top:1px solid #3b4147;padding:1rem .7rem;color:#9ca6ae;font-size:.82rem}.admin-workspace{min-width:0}.admin-topbar{height:82px;background:#fff;border-bottom:1px solid #e0e5e9;display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:0 2rem}.admin-search{background:#f4f6f8;border-radius:.65rem;display:flex;align-items:center;gap:.5rem;padding:.55rem .85rem;width:min(300px,35vw)}.admin-search span{color:#126ec3;font-size:1.3rem}.admin-search input{width:100%;border:0;outline:0;background:transparent}.admin-top-user{display:flex;align-items:center;gap:.8rem;font-size:.9rem}.admin-top-user form{margin:0}.admin-avatar{width:36px;height:36px;display:grid;place-items:center;background:#e8f2fc;color:#066ac9;border-radius:50%;font-weight:700}.admin-mobile-brand{display:none}.admin-content{padding:1.8rem 2rem 4rem;max-width:1800px;margin:auto}.admin-panel{background:white;border:1px solid #dce4e9;border-radius:.75rem;padding:1.8rem;box-shadow:0 3px 12px #19304c08}.admin-heading,.admin-section-head{display:flex;align-items:center;justify-content:space-between;gap:1rem}.admin-heading h1{font-size:2rem;margin:0 0 1.2rem}.admin-heading .eyebrow{margin:0 0 .25rem}.admin-stat-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1rem}.admin-stat{border-radius:.7rem;padding:1.5rem;display:flex;align-items:center;justify-content:space-between;min-height:135px}.admin-stat strong{font:700 clamp(1.7rem,2.6vw,2.6rem)/1 Heebo,system-ui;display:block}.admin-stat span{font-size:.9rem}.admin-stat b{width:56px;height:56px;border-radius:50%;display:grid;place-items:center;color:white;font-size:1.4rem;flex:none}.admin-stat.blue{background:#e7f2fc}.admin-stat.blue b{background:#086dcc}.admin-stat.purple{background:#f0ebfa}.admin-stat.purple b{background:#7040c4}.admin-stat.yellow{background:#fff6df}.admin-stat.yellow b{background:#f5be25}.admin-stat.mint{background:#e4f7f1}.admin-stat.mint b{background:#13b78b}.admin-section-head{margin:2.2rem 0 1rem}.admin-section-head h2{margin:0;font-size:1.4rem}.admin-section-head p{margin:0;color:#6c7784}.admin-course-list{border:1px solid #e3e8ed;border-radius:.7rem;overflow:hidden}.admin-course-row{display:flex;align-items:center;gap:1rem;padding:1.1rem 1.3rem;border-bottom:1px solid #edf0f2}.admin-course-row:last-child{border-bottom:0}.admin-course-row[hidden]{display:none}.admin-course-icon{display:grid;place-items:center;width:48px;height:48px;border-radius:.65rem;background:#e7f2fc;color:#066ac9;font-size:1.3rem}.admin-course-info{flex:1}.admin-course-info h3{font-size:1.05rem;margin:0}.admin-course-info span{font-size:.84rem;color:#73818e}.admin-course-actions{display:flex;gap:1.2rem;flex-wrap:wrap;font-size:.88rem}.admin-content>.card,.admin-content>.section.card{padding:1.8rem;margin-bottom:1rem}.admin-content .form{margin:0}.admin-content form label{display:block;font-weight:600;margin:.8rem 0 .3rem}.admin-content form input:not([type=hidden]):not([type=checkbox]):not([type=file]),.admin-content textarea{display:block;width:100%;padding:.68rem .85rem;border:1px solid #d5dee8;border-radius:.5rem}.admin-content textarea{min-height:12rem}
@media(max-width:1150px){.admin-stat-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.admin-shell{grid-template-columns:230px minmax(0,1fr)}.admin-brand{font-size:1rem}}
@media(max-width:750px){.admin-shell{display:block}.admin-rail{position:static;height:auto;min-height:0;padding:.75rem}.admin-brand{margin:.2rem .4rem}.admin-rail nav{flex-direction:row;overflow-x:auto}.admin-rail-label,.admin-rail-footer{display:none}.admin-rail-link{white-space:nowrap}.admin-topbar{height:auto;padding:1rem;flex-wrap:wrap}.admin-search{width:100%;order:2}.admin-content{padding:1rem}.admin-panel{padding:1.1rem}.admin-stat-grid{gap:.6rem}.admin-stat{padding:.9rem;min-height:95px}.admin-stat b{width:40px;height:40px}.admin-course-row{flex-wrap:wrap}.admin-course-actions{width:100%;padding-left:64px}}
/* Course and classroom presentation */
.course-breadcrumb{display:flex;gap:.7rem;color:#637385;margin-bottom:1.2rem;font-size:.9rem}.course-banner{background:linear-gradient(120deg,#e7f2ff,#f5f9ff 66%,#d9ebfd);border-radius:1rem;padding:3rem;display:flex;align-items:center;justify-content:space-between;gap:2rem;overflow:hidden}.course-banner>div:first-child{max-width:700px;position:relative;z-index:1}.course-banner h1{font-size:clamp(2.15rem,3.2vw,3.2rem);line-height:1.15;margin:.5rem 0 1rem}.course-banner p{font-size:1.08rem;color:#536a7f;max-width:660px}.course-meta{display:flex;gap:1.4rem;flex-wrap:wrap;color:#336187;margin:1.2rem 0 1.7rem;font-weight:600}.course-access-note{display:inline-block;color:#506980;font-weight:600}.course-banner-art{width:240px;height:220px;display:grid;place-items:center;flex:none;background:linear-gradient(135deg,#3999ec,#0758a6);border-radius:2rem;transform:rotate(-9deg);box-shadow:18px 18px 0 #b6d9f9}.course-banner-art span{display:grid;place-items:center;width:100px;height:100px;border:2px solid #ffffffb8;border-radius:50%;color:white;background:#ffffff35;font-size:2.8rem;transform:rotate(9deg)}.course-detail-grid{display:grid;grid-template-columns:minmax(0,1fr) 320px;align-items:start;gap:1.5rem;margin-top:1.5rem}.course-detail-panel,.course-detail-aside{padding:2rem}.course-detail-panel h2{font-size:1.55rem;margin:1rem 0}.course-detail-panel>p{color:#5d6e7e;line-height:1.7;max-width:800px;margin-bottom:2rem}.curriculum-list{border:1px solid #e4eaf0;border-radius:.7rem;overflow:hidden}.curriculum-item{display:flex;align-items:center;gap:1rem;padding:1.1rem;border-bottom:1px solid #e9edf2;color:#293c4e}.curriculum-item:last-child{border-bottom:0}.curriculum-item:hover{text-decoration:none;background:#f5faff}.curriculum-item>span:nth-child(2){flex:1;font-weight:600}.curriculum-item b{color:#0869c3;font-size:.85rem;font-weight:600}.curriculum-index{height:36px;width:36px;display:grid;place-items:center;border-radius:50%;background:#e8f2fc;color:#066ac9;font-weight:700;flex:none}.course-detail-aside{position:sticky;top:1.5rem}.course-detail-aside h3{font-size:1.25rem}.course-detail-aside p{color:#64748b;line-height:1.6}.course-detail-aside .button{width:100%}.course-aside-art{height:150px;border-radius:.65rem;background:linear-gradient(135deg,#065cb3,#5ba9f3);color:white;display:grid;place-items:center;font-size:3rem;margin-bottom:1.5rem}.lesson-topline{display:flex;justify-content:space-between;gap:1rem;color:#64748b;font-size:.9rem;margin-bottom:1.3rem}.lesson-page-heading h1{font-size:clamp(1.8rem,2.5vw,2.6rem);margin:.25rem 0 1.5rem}.lesson-tabs{display:flex;gap:2rem;border-bottom:1px solid #dce4ed;margin-top:1.25rem}.lesson-tabs a{padding:.8rem .2rem;color:#465e75;font-weight:600}.lesson-tabs a:first-child{color:#066ac9;border-bottom:3px solid #066ac9}.lesson-content{scroll-margin-top:1rem}.lesson-content h2{margin:.5rem 0 1rem!important}.lesson-prose{line-height:1.8;white-space:normal;color:#3e4f61}.lesson-actions{padding-bottom:1.5rem}.sidebar nav{display:flex;flex-direction:column}.sidebar>.eyebrow{display:block;margin-bottom:.4rem}.sidebar>p{margin-bottom:1rem}.video-placeholder p{margin-bottom:0}
@media(max-width:900px){.course-detail-grid{grid-template-columns:1fr}.course-detail-aside{position:static}.course-banner-art{width:160px;height:160px}}
@media(max-width:620px){.course-banner{padding:1.7rem}.course-banner-art{display:none}.course-detail-panel,.course-detail-aside{padding:1.25rem}.curriculum-item{gap:.6rem}.curriculum-item b{font-size:.75rem}.lesson-tabs{gap:1rem}.lesson-topline{flex-wrap:wrap}}
.video:has(video):before{display:none}.video video{position:relative;width:100%;height:100%;aspect-ratio:16/9;object-fit:contain;background:#000;display:block}.lesson-actions button:disabled{opacity:.6;cursor:wait}
.video:has(video){display:block;aspect-ratio:auto;background:#000}.video .plyr{width:100%;aspect-ratio:16/9}.video .plyr__video-wrapper{width:100%;height:100%}.video .plyr video{width:100%;height:100%;object-fit:contain}.video .plyr--full-ui input[type=range]{accent-color:#066ac9}
.lesson-prose h3{font-size:1.3rem;margin:2rem 0 .7rem;color:#263645}.lesson-prose h3:first-child{margin-top:0}.lesson-prose p{margin:0 0 .85rem;line-height:1.75}.lesson-prose ul{padding-left:1.5rem;margin:.5rem 0 1.4rem}.lesson-prose li{margin:.45rem 0}.lesson-prose a{overflow-wrap:anywhere}
.checklist-hero{background:linear-gradient(120deg,#e7f2ff,#f4f9ff);border-radius:1rem;padding:3rem;display:flex;align-items:center;justify-content:space-between;gap:2rem}.checklist-hero>div:first-child{max-width:650px}.checklist-hero h1{font-size:clamp(2rem,3vw,3rem);line-height:1.16;margin:.5rem 0 1rem}.checklist-hero p{font-size:1.07rem;color:#526983}.checklist-price{font-size:2rem;font-weight:700;margin:1.3rem 0}.checklist-price small{font-size:.9rem;color:#61758a;font-weight:400}.checklist-art{width:215px;height:215px;flex:none;display:grid;place-items:center;border-radius:2rem;background:#0869c3;color:white;font-size:6rem;box-shadow:15px 15px 0 #b6d9f9;transform:rotate(-8deg)}.checklist-detail{padding:2rem;margin-top:1.5rem}.checklist-detail li{margin:.7rem 0}.checklist-promo{background:#f1f8ff}.checklist-promo h2{margin:.5rem 0}.checklist-promo a{font-weight:700}@media(max-width:650px){.checklist-hero{padding:1.7rem}.checklist-art{display:none}}

/* Checklist product page */
.checklist-hero{align-items:stretch;overflow:hidden}.checklist-intro{display:flex;flex-direction:column;justify-content:center}.checklist-intro p{line-height:1.65}.checklist-cover{flex:0 1 48%;min-width:0;display:flex;align-items:center}.checklist-cover img{display:block;width:100%;height:auto;border-radius:.8rem;box-shadow:0 18px 45px #0c2c4d24}.checklist-sections{display:grid;grid-template-columns:1fr 1fr;gap:1.5rem}.checklist-sections .checklist-detail{margin-top:1.5rem}.checklist-detail h2{margin-top:0}.checklist-detail ul{padding-left:1.25rem;line-height:1.6}.checklist-detail p{color:#526983;line-height:1.65}@media(max-width:800px){.checklist-hero{flex-direction:column}.checklist-cover{flex:auto;width:100%}.checklist-sections{grid-template-columns:1fr;gap:0}}