:root{--navy:#122b45;--navy2:#0a2035;--teal:#11a7a1;--teal-dark:#087c78;--sky:#eaf7f7;--ink:#172231;--muted:#5c6977;--line:#d9e1e8;--white:#fff;--gold:#f2b84b;--shadow:0 14px 40px rgba(13,34,55,.12);font-family:Inter,ui-sans-serif,system-ui,-apple-system,Segoe UI,sans-serif;color:var(--ink);background:#f7f9fb}*{box-sizing:border-box}body{margin:0;min-height:100vh}button,input{font:inherit}button,a{transition:.18s ease}a{color:inherit;text-decoration:none}.skip{position:absolute;left:-9999px}.skip:focus{left:16px;top:12px;z-index:99;background:white;padding:10px}.topbar{height:72px;background:white;border-bottom:1px solid var(--line);display:flex;align-items:center;padding:0 clamp(18px,4vw,64px);gap:26px;position:sticky;top:0;z-index:20}.brand{font-weight:800;color:var(--navy);display:flex;align-items:center;gap:10px;white-space:nowrap}.brand-mark{width:36px;height:36px;display:grid;place-items:center;border-radius:10px;background:linear-gradient(145deg,var(--teal),var(--navy));color:#fff;font-size:13px;letter-spacing:.5px}.brand-mark.large{width:52px;height:52px;margin:auto;border-radius:15px}.explore,.primary{border:0;background:var(--navy);color:white;border-radius:8px;padding:12px 18px;font-weight:750;cursor:pointer}.explore:hover,.primary:hover{background:var(--teal-dark);transform:translateY(-1px)}.small{padding:10px 16px}.wide{width:100%}.link-button{border:0;background:none;color:var(--navy);font-weight:700;cursor:pointer}.topbar nav{margin-left:auto;display:flex;align-items:center;gap:22px}.avatar{width:38px;height:38px;border:0;border-radius:50%;background:var(--teal);color:white;font-weight:800;cursor:pointer}.hidden{display:none!important}.hero{background:linear-gradient(120deg,var(--navy2) 0%,var(--navy) 58%,#126a73 100%);color:white;padding:72px clamp(22px,7vw,112px);display:grid;grid-template-columns:minmax(0,1.25fr) minmax(300px,.75fr);gap:60px;align-items:center}.eyebrow{text-transform:uppercase;letter-spacing:1.5px;font-size:13px;font-weight:800;color:#64ddd5}.hero h1{font-family:Georgia,serif;font-size:clamp(42px,6vw,72px);line-height:1.02;margin:12px 0 22px;max-width:780px}.hero p{font-size:20px;line-height:1.6;color:#d7e4ed;max-width:680px}.hero-actions{display:flex;gap:14px;margin-top:28px}.hero .primary{background:var(--teal);padding:15px 22px}.secondary{border:1px solid rgba(255,255,255,.55);background:transparent;color:white;border-radius:8px;padding:14px 20px;font-weight:750;cursor:pointer}.molecule-card{height:330px;border-radius:26px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.15);position:relative;overflow:hidden}.orb{position:absolute;border-radius:50%;display:grid;place-items:center;font-weight:800;box-shadow:0 12px 25px rgba(0,0,0,.2)}.orb.one{width:118px;height:118px;background:var(--teal);left:40%;top:31%}.orb.two,.orb.three{width:62px;height:62px;background:white;color:var(--navy)}.orb.two{left:14%;top:18%}.orb.three{right:14%;bottom:18%}.bond{position:absolute;height:8px;background:rgba(255,255,255,.65);transform-origin:left center;border-radius:8px}.bond.a{width:125px;left:27%;top:39%;transform:rotate(22deg)}.bond.b{width:120px;left:58%;top:57%;transform:rotate(20deg)}.stats{display:grid;grid-template-columns:repeat(3,1fr);background:white;max-width:1180px;margin:-30px auto 0;position:relative;border-radius:14px;box-shadow:var(--shadow);padding:25px}.stat{text-align:center;border-right:1px solid var(--line)}.stat:last-child{border:0}.stat strong{display:block;font-size:24px;color:var(--navy)}.stat span{color:var(--muted);font-size:14px}.section{padding:72px clamp(22px,7vw,112px);max-width:1440px;margin:auto}.section-head{display:flex;justify-content:space-between;align-items:end;margin-bottom:26px}.section h2{font-family:Georgia,serif;font-size:38px;margin:0;color:var(--navy)}.section-head p{color:var(--muted)}.course-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.course-card{background:white;border:1px solid var(--line);border-radius:14px;overflow:hidden;box-shadow:0 5px 16px rgba(15,35,50,.05);cursor:pointer}.course-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}.course-image{height:180px;background:linear-gradient(135deg,#153f5e,#11a7a1);display:flex;align-items:center;justify-content:center;color:white;font-size:52px;font-family:Georgia,serif}.course-body{padding:22px}.tag{display:inline-block;background:var(--sky);color:var(--teal-dark);padding:6px 9px;border-radius:5px;font-size:12px;font-weight:800;text-transform:uppercase;letter-spacing:.6px}.course-body h3{font-size:21px;margin:14px 0 10px}.course-body p{color:var(--muted);line-height:1.5}.meta{display:flex;gap:16px;border-top:1px solid var(--line);padding-top:16px;color:var(--muted);font-size:13px}.placeholder .course-image{background:#dce5eb;color:#748391}.course-hero{background:var(--navy);color:white;padding:54px clamp(22px,8vw,120px);display:grid;grid-template-columns:1fr 360px;gap:70px}.breadcrumbs{font-size:14px;color:#a7d9d7}.course-hero h1{font:50px/1.06 Georgia,serif;margin:20px 0}.course-hero p{font-size:19px;color:#d7e4ed;line-height:1.55}.course-hero ul{display:flex;gap:25px;padding:0;list-style:none;color:#d7e4ed}.enrol-card{background:white;color:var(--ink);border-radius:14px;padding:24px;box-shadow:var(--shadow)}.enrol-card img{width:100%;border-radius:9px}.price{font-size:28px;font-weight:850;margin:18px 0 4px}.fine{font-size:12px!important;color:var(--muted)!important}.course-detail{display:grid;grid-template-columns:1fr 360px;gap:65px}.outcomes{display:grid;grid-template-columns:1fr 1fr;gap:16px;padding:0;list-style:none}.outcomes li{padding-left:28px;position:relative;line-height:1.5}.outcomes li:before{content:'✓';position:absolute;left:0;color:var(--teal);font-weight:900}.syllabus{border:1px solid var(--line);border-radius:12px;background:white}.module{display:flex;gap:16px;padding:20px;border-bottom:1px solid var(--line);align-items:center}.module:last-child{border:0}.module-number{width:38px;height:38px;border-radius:50%;background:var(--sky);color:var(--teal-dark);display:grid;place-items:center;font-weight:800}.module strong{display:block}.module span{font-size:13px;color:var(--muted)}.learn-shell{display:grid;grid-template-columns:320px 1fr;min-height:calc(100vh - 72px)}.learn-sidebar{background:#f0f4f6;border-right:1px solid var(--line);padding:25px 18px}.learn-sidebar h2{font-size:18px;margin:6px 8px 20px}.progress-bar{height:8px;background:#d8e3e7;border-radius:20px;overflow:hidden;margin:8px}.progress-bar span{display:block;height:100%;background:var(--teal)}.progress-label{font-size:12px;color:var(--muted);margin:6px 8px 24px}.lesson-link{display:flex;gap:12px;padding:13px 12px;border-radius:8px;cursor:pointer;margin:4px 0}.lesson-link:hover,.lesson-link.active{background:white;box-shadow:0 2px 8px rgba(0,0,0,.05)}.lesson-link .check{width:22px;height:22px;border:2px solid #a9b8c3;border-radius:50%;display:grid;place-items:center;font-size:12px;color:white;flex:0 0 auto}.lesson-link.done .check{background:var(--teal);border-color:var(--teal)}.lesson-link small{display:block;color:var(--muted);margin-top:3px}.lesson-main{background:white;padding:38px clamp(22px,5vw,70px)}.lesson-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px}.lesson-top h1{font:38px Georgia,serif;color:var(--navy);margin:0}.content-stage{max-width:1000px}.video-wrap{aspect-ratio:16/9;background:#07131f;border-radius:12px;overflow:hidden}.video-wrap video,.video-wrap img{width:100%;height:100%;object-fit:contain}.lesson-copy{line-height:1.7;font-size:17px}.lesson-copy h2{color:var(--navy);margin-top:32px}.resource-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.resource{border:1px solid var(--line);border-radius:10px;padding:18px;display:block}.resource:hover{border-color:var(--teal);background:var(--sky)}.resource strong{display:block;margin-bottom:5px}.resource span{font-size:13px;color:var(--muted)}.complete-row{display:flex;justify-content:space-between;align-items:center;border-top:1px solid var(--line);margin-top:36px;padding-top:24px}.quiz-question{border:1px solid var(--line);border-radius:10px;padding:20px;margin:16px 0}.quiz-question legend{font-weight:750;padding:0 7px}.quiz-question label{display:block;padding:10px 8px;border-radius:6px}.quiz-question label:hover{background:var(--sky)}.quiz-result{padding:18px;background:var(--sky);border-left:5px solid var(--teal);margin:20px 0}.dashboard{max-width:1180px;margin:auto;padding:60px 24px}.dashboard h1{font:42px Georgia,serif;color:var(--navy)}.learning-card{display:grid;grid-template-columns:230px 1fr;background:white;border:1px solid var(--line);border-radius:14px;overflow:hidden}.learning-card img{width:100%;height:100%;object-fit:cover}.learning-card>div{padding:28px}.modal{position:fixed;inset:0;background:rgba(6,20,33,.72);z-index:50;display:grid;place-items:center;padding:18px}.modal-card{background:white;width:min(440px,100%);border-radius:16px;padding:34px;position:relative;box-shadow:var(--shadow);text-align:center}.modal-close{position:absolute;right:14px;top:8px;border:0;background:none;font-size:30px;cursor:pointer}.modal h2{font:32px Georgia,serif;color:var(--navy);margin:18px 0 5px}.modal p{color:var(--muted)}.modal label{text-align:left;display:block;font-size:14px;font-weight:700;margin:15px 0}.modal input{width:100%;margin-top:7px;padding:12px;border:1px solid #aebbc5;border-radius:7px}.form-error{color:#aa2835!important;min-height:18px;font-size:13px}.toast{position:fixed;right:22px;bottom:22px;background:var(--navy);color:white;padding:14px 18px;border-radius:9px;z-index:60;box-shadow:var(--shadow)}footer{background:var(--navy2);color:#c9d5de;padding:45px clamp(22px,7vw,112px);display:grid;grid-template-columns:1fr auto;gap:20px;font-size:14px}footer strong{color:white;font-size:17px}footer div:nth-child(2){display:flex;gap:20px}footer>p{grid-column:1/-1;font-size:12px;border-top:1px solid #294158;padding-top:20px}.empty{padding:80px 24px;text-align:center}.empty h1{font:42px Georgia,serif;color:var(--navy)}
@media(max-width:900px){.topbar .explore,.topbar nav>a{display:none}.hero,.course-hero,.course-detail{grid-template-columns:1fr}.molecule-card{display:none}.course-grid{grid-template-columns:1fr 1fr}.course-hero{gap:30px}.enrol-card{max-width:430px}.learn-shell{grid-template-columns:1fr}.learn-sidebar{border-right:0;border-bottom:1px solid var(--line)}.learning-card{grid-template-columns:1fr}.learning-card img{height:210px}}
@media(max-width:600px){.brand span:last-child{display:none}.topbar{gap:10px}.topbar nav{gap:10px}.course-grid,.outcomes,.resource-grid{grid-template-columns:1fr}.hero{padding-top:48px}.hero h1{font-size:43px}.stats{margin:0;border-radius:0}.stat strong{font-size:18px}.section{padding-top:50px}.course-hero h1{font-size:40px}.course-hero ul{display:block}.lesson-main{padding:25px 18px}.lesson-top{align-items:flex-start;gap:14px}.lesson-top h1{font-size:31px}}
.checkout-button{margin-top:10px;border:1px solid var(--navy);background:white;color:var(--navy);border-radius:8px;padding:12px 18px;font-weight:750;cursor:pointer}.checkout-button:hover{background:var(--sky);border-color:var(--teal-dark)}.notice{background:#fff6dd;border-left:5px solid var(--gold);padding:17px 20px;border-radius:8px;margin:18px 0 25px}.notice p{margin-bottom:0}.referral-card{margin-top:28px;background:linear-gradient(125deg,var(--navy),#126a73);color:white;border-radius:14px;padding:28px;display:grid;grid-template-columns:1fr 1fr;gap:30px}.referral-card h2{font-family:Georgia,serif;font-size:28px;margin:8px 0}.referral-card p{color:#dce9ef}.referral-card label{font-size:13px;font-weight:700}.referral-card input{display:block;width:100%;padding:12px;border-radius:7px;border:0;margin:8px 0 10px}.learn-shell.with-ads{grid-template-columns:300px minmax(0,1fr) 250px}.ad-sidebar{background:#f4f7f9;border-left:1px solid var(--line);padding:28px 16px}.ad-sidebar>span{font-size:11px;text-transform:uppercase;color:var(--muted);letter-spacing:1px}.ad-slot{background:white;border:1px solid var(--line);border-radius:10px;padding:18px;margin:12px 0}.ad-slot p,.ad-sidebar small{color:var(--muted);line-height:1.45}.upgrade-box{background:var(--sky);border:1px solid #bce1df;border-radius:10px;padding:20px;margin-top:18px}button:disabled{opacity:.5;cursor:not-allowed}