:root{--navy:#09254c;--deep:#071e40;--blue:#1364d7;--blue2:#1d80e7;--sky:#eef6ff;--orange:#f5a22b;--green:#0f906d;--ink:#16263f;--muted:#64748b;--line:#e0e7ef;--bg:#f5f8fc;--shadow:0 10px 28px rgba(10,43,88,.055)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font:15px/1.65 system-ui,-apple-system,Segoe UI,sans-serif}a{color:#0863d4;text-decoration:none}a:hover{text-decoration:underline}h1,h2,h3,p{margin-top:0}h1{font-size:clamp(2rem,4vw,3.2rem);line-height:1.15;letter-spacing:-.045em}h2{font-size:1.55rem;line-height:1.25;letter-spacing:-.025em}h3{font-size:1.07rem;line-height:1.3}small,.muted,.meta{color:var(--muted)}p{line-height:1.75}.container{width:min(1200px,calc(100% - 38px));margin:0 auto;padding:32px 0 80px;min-height:65vh}.container.narrow{max-width:680px}.topbar{background:white;border-bottom:1px solid var(--line);padding:12px max(26px,calc((100vw - 1200px)/2));display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:82px}.brand{display:flex;align-items:center;gap:9px;color:var(--navy);text-decoration:none;line-height:1.0;font-weight:900;font-size:25px;letter-spacing:.02em;white-space:nowrap}.brand strong{display:block;font-size:11px;letter-spacing:.085em;margin-top:4px}.brand small{display:block;font-size:10px;font-weight:500;letter-spacing:.02em;margin-top:6px;color:var(--muted)}.mark{width:49px;height:49px;background:var(--navy);border-radius:14px;display:grid;place-items:center}.mark svg{width:43px;height:43px}.topbar nav{display:flex;align-items:center;gap:20px;flex-wrap:wrap}.topbar nav a{font-size:13px;font-weight:700;color:var(--navy)}.topbar nav .btn{color:white}.rolebar{background:#e8f1fb;padding:5px max(25px,calc((100vw - 1200px)/2));display:flex;justify-content:space-between;gap:10px;font-size:12px}.btn{background:var(--blue);border:1px solid var(--blue);border-radius:10px;display:inline-flex;justify-content:center;align-items:center;padding:11px 19px;color:white!important;font-weight:750;cursor:pointer;font:inherit;text-decoration:none!important;transition:.18s;white-space:normal}.btn:hover{background:#0c4eab;transform:translateY(-1px)}.btn.small{font-size:13px;padding:7px 12px}.btn.secondary{background:white;color:var(--blue)!important}.btn.amber{background:var(--orange);border-color:var(--orange);color:var(--deep)!important}.btn.outline-white{background:transparent;border-color:#e7f3ff}.btn.full{width:100%}.linkbtn{border:0;background:transparent;color:var(--blue);font-weight:700;cursor:pointer;padding:0;font:inherit}.inline{display:inline;margin:0}.card{background:white;border-radius:16px;padding:22px;border:1px solid #e7edf4;box-shadow:var(--shadow)}.hero{border-radius:25px;overflow:hidden;padding:56px 55px;background:radial-gradient(circle at 70% 20%,#135a9b 0%,transparent 40%),linear-gradient(120deg,#07234f,#07386c);display:grid;grid-template-columns:1.1fr .9fr;gap:44px;color:white;align-items:center}.hero h1{font-size:clamp(2.3rem,4vw,4rem);margin:20px 0}.hero h1 em{font-style:normal;color:#ffb443}.hero p{max-width:570px;color:#dcecff;font-size:16px}.hero-tag,.eyebrow{text-transform:uppercase;font-size:11px;font-weight:850;letter-spacing:.14em;color:var(--blue)}.hero-tag{color:#97ceff}.actions{display:flex;flex-wrap:wrap;gap:10px;margin:22px 0}.muted-light{color:#adc8e8!important;font-size:12px!important}.hero-art{background:#112f56;padding:13px;border:1px solid #557398;border-radius:19px;box-shadow:0 26px 70px #04152e;transform:rotate(2deg)}.art-top{display:flex;justify-content:space-between;padding:6px 9px;color:#bcdfff;font-size:11px}.code-screen{border-radius:12px;background:#f6f9ff;color:var(--navy);min-height:260px;padding:24px}.code-screen b{display:block;margin-bottom:20px}.code-screen code{display:block;background:#0a2348;color:#9beabf;padding:19px;border-radius:9px;font-size:13px;line-height:2}.art-footer{font-size:12px;margin-top:16px;color:#16568e}.statrow{display:grid;grid-template-columns:repeat(4,1fr);margin:27px 0 40px;gap:14px}.statrow>div{background:white;border-radius:14px;border:1px solid var(--line);padding:15px 22px;display:grid;gap:2px}.statrow b{color:var(--blue);font-size:27px}.statrow span{font-size:12px;color:var(--muted)}.section-heading{display:flex;justify-content:space-between;align-items:end;gap:15px;margin:38px 0 16px}.section-heading h2{margin-bottom:0}.grid{display:grid;gap:16px}.grid.two{grid-template-columns:repeat(2,minmax(0,1fr))}.grid.courses{grid-template-columns:repeat(4,minmax(0,1fr))}.course-card{display:flex;flex-direction:column;align-items:start;min-height:275px;color:inherit;text-decoration:none!important;transition:transform .2s,border-color .2s}.course-card:hover{transform:translateY(-3px);border-color:#8bb8eb}.course-card h3{font-size:19px;margin:14px 0 7px;color:var(--navy)}.course-card p{font-size:13px;margin:0 0 13px}.course-card .meta{font-size:11px;margin-top:auto}.course-icon{align-self:end;font-size:26px;color:#a1c4e9;font-weight:900;line-height:1}.chip{display:inline-flex;background:#dcedff;color:#1357a0;border-radius:9px;padding:3px 9px;font-size:10px;font-weight:850;letter-spacing:.055em;text-transform:uppercase}.chip.orange{background:#fff1d9;color:#ae6200}.chip.green{background:#d9f9ea;color:#0d8151}.actionlink{color:var(--blue);margin-top:14px;font-weight:800;font-size:12px}.panel-strip{background:#e0eefc;border-radius:18px;padding:28px 35px;margin:30px 0;display:flex;align-items:center;justify-content:space-between;gap:40px}.panel-strip p{margin:0}.panel-strip h2{margin:0 0 7px}.page-head{margin:6px 0 25px;display:flex;justify-content:space-between;align-items:center;gap:20px}.page-head h1{margin:5px 0}.page-head p{color:var(--muted);margin:4px 0}.breadcrumbs{font-size:12px;color:var(--muted);margin-bottom:23px}.course-hero{background:linear-gradient(110deg,#082652,#0f5caf);padding:35px;border-radius:20px;color:white;display:flex;justify-content:space-between;align-items:center;gap:20px}.course-hero h1{margin:14px 0}.course-hero p{max-width:700px}.course-count{display:grid;place-items:center;min-width:170px;border-radius:15px;background:#ffffff21;padding:12px;text-align:center}.course-count b{font-size:55px}.course-count span{font-size:11px}.progresscard{padding:20px 4px}.progress{height:10px;background:#dde8f5;border-radius:9px;overflow:hidden}.progress span{display:block;height:100%;background:#10a77a}.topic-heading{padding:13px 0 6px;border-bottom:2px solid #dfeaf8;margin:32px 0 8px;color:var(--navy)}.lesson-list{display:grid;gap:8px}.lesson-row{background:white;padding:14px 16px;display:flex;align-items:center;gap:14px;border:1px solid var(--line);border-radius:11px}.lesson-num{background:#eaf3ff;color:#155ba7;font-weight:900;border-radius:8px;padding:7px 9px;font-size:12px}.lesson-detail{flex:1;min-width:0}.lesson-detail b{display:block}.lesson-detail small{display:block;font-size:11px}.lesson-layout{display:grid;grid-template-columns:minmax(0,1fr) 270px;align-items:start;gap:25px}.lesson-title{margin:10px 0 24px}.lesson-title h1{margin:14px 0}.lesson-section{margin:14px 0 24px;padding:30px}.lesson-section h2{font-size:22px;color:var(--navy)}.icon-heading{display:flex;align-items:center;gap:11px}.icon-heading h2{margin:0}.preserve{white-space:pre-wrap;line-height:1.9;overflow-wrap:anywhere}.lesson-aside{position:sticky;top:16px}.lesson-aside p{display:flex;justify-content:space-between;gap:13px;font-size:12px}.lesson-aside .btn{margin-top:8px}.question{padding:19px 0;border-bottom:1px solid var(--line)}.question:last-of-type{border-bottom:none}.question h3{font-size:15px}.option{display:flex;align-items:start;gap:9px;padding:10px 13px;border:1px solid var(--line);border-radius:8px;margin:8px 0;cursor:pointer;font-size:13px}.option:hover{background:#f5f9ff}.option input{accent-color:var(--blue);margin-top:4px}.section-top{margin-top:20px}.form-card{max-width:520px;padding:35px}.form-card.wide{max-width:900px}.centered{margin:30px auto}.auth-layout{display:grid;grid-template-columns:1fr 1fr;gap:0;max-width:980px;margin:30px auto;box-shadow:var(--shadow);border-radius:20px;overflow:hidden}.auth-layout .form-card{max-width:none;border-radius:0}.auth-image{background:linear-gradient(150deg,#071e40,#1458a2);color:white;padding:65px 50px}.auth-image .eyebrow{color:#85d4ff}.auth-image h2{font-size:37px;line-height:1.15;margin:18px 0}.auth-image p{color:#cfe6fa}.form-card form,.compact-form{display:grid;gap:15px}label:not(.option):not(.check){display:block;font-weight:700;font-size:12px;color:#27405f}input:not([type="checkbox"]):not([type="radio"]):not([type="file"]),textarea,select{display:block;width:100%;padding:10px 12px;border:1px solid #cdd9e7;border-radius:8px;background:white;font:inherit;color:var(--ink);margin-top:5px}input:focus,textarea:focus,select:focus{outline:2px solid #b7d8ff;border-color:#4592f4}textarea{resize:vertical}.check{display:flex;align-items:center;gap:8px;font-size:13px}.demo-accounts{background:#f3f7fc;padding:10px;border-radius:8px;overflow-wrap:anywhere}.demo-accounts p{font-size:12px;margin:6px 0}.alert{padding:13px 17px;border-radius:11px;background:#e9f4ff;color:#06467a;border:1px solid #c9e0fb;margin:14px 0}.alert.danger{background:#fff1e8;color:#923500;border-color:#f7d8c0}.alert.success{background:#e3f9ee;color:#07623b;border-color:#b5eacc}.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:15px;margin-bottom:20px}.stats .card{display:grid}.stats b{font-size:33px;line-height:1.3;color:#0f62c7}.stats span{font-size:12px;color:var(--muted)}.list-panel{padding:5px 22px}.item{padding:16px 0;display:flex;justify-content:space-between;gap:15px;align-items:center;border-bottom:1px solid var(--line)}.item:last-child{border-bottom:none}.item b{display:block}.item small{display:block}.split{display:flex;justify-content:space-between;gap:16px;align-items:center}.table-scroll{overflow-x:auto}table{border-collapse:collapse;width:100%;font-size:13px;text-align:left}th,td{padding:11px 12px;border-bottom:1px solid var(--line);vertical-align:top}th{background:#edf4fc;color:#214e7c;white-space:nowrap}tr:last-child td{border-bottom:0}.positive{color:#087b55;font-weight:700}.timer{background:#e4eef9;padding:12px 18px;border-radius:10px;font-weight:800;color:var(--navy)}.timer.urgent{background:#ffe9dd;color:#b53f0b}.footer{text-align:center;background:#e9f0f8;color:#66809e;font-size:12px;padding:29px 12px}.install{margin-top:50px}details{margin-top:20px}summary{cursor:pointer;color:var(--blue)}@media(max-width:980px){.grid.courses{grid-template-columns:repeat(2,minmax(0,1fr))}.topbar{padding-left:18px;padding-right:18px}.hero{padding:38px 26px;gap:20px}}@media(max-width:700px){.topbar{flex-direction:column;align-items:stretch;padding:12px 18px}.topbar nav{gap:11px}.hero{grid-template-columns:1fr;padding:32px 23px}.hero-art{transform:none}.statrow,.stats{grid-template-columns:repeat(2,minmax(0,1fr))}.grid.two,.grid.courses,.auth-layout,.lesson-layout{grid-template-columns:1fr}.auth-image{padding:28px}.page-head,.panel-strip,.course-hero{flex-direction:column;align-items:stretch}.course-count{min-width:0}.lesson-aside{position:static}.lesson-row{flex-wrap:wrap}.lesson-detail{flex-basis:65%}.rolebar{padding:7px 18px}.form-card{padding:22px}}
.lab{border-color:#b7d9fa;background:linear-gradient(145deg,#fff,#f2f9ff)}.lab .lab-run{margin:12px 0}.lab-output{white-space:pre-wrap;word-break:break-word;background:#0b2c52;color:#a9edc5;border-radius:11px;padding:19px;font-size:13px;min-height:75px;line-height:1.7}

.quiz-feedback{background:#e8f7ee;border-radius:8px;color:#0c6349;padding:12px;font-size:12px}

/* JAYS MODERN: original design system, version 2.1 */
:root{--navy:#171331;--deep:#11152b;--blue:#5142d7;--blue2:#6e5cff;--sky:#f3f1ff;--orange:#ffbe6a;--green:#12a98f;--ink:#211d38;--muted:#77758e;--line:#ebe9f3;--bg:#f8f9fd;--shadow:0 14px 44px rgba(36,26,76,.045)}
body{font-family:Inter,"Segoe UI",system-ui,-apple-system,sans-serif;font-size:15px;line-height:1.6;letter-spacing:-.008em}
a{color:#5142d7}a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid #9d90ff;outline-offset:3px}
h1,h2,h3{color:var(--navy);letter-spacing:-.045em;line-height:1.16}
h1{font-size:clamp(2.6rem,4vw,4.3rem)}h2{font-size:clamp(1.5rem,2.2vw,2.2rem)}h3{font-size:1.12rem}
.container{width:min(1320px,calc(100% - 64px));padding-top:34px;padding-bottom:105px}.container.narrow{max-width:720px}
.site-promo{background:#18152f;color:#ddd9f2;text-align:center;padding:8px 16px;font-size:11px;letter-spacing:.01em;min-height:35px}.site-promo a{color:#ffd59c;margin-left:10px;font-weight:800}.site-promo a:hover{text-decoration:underline}.promo-dot{display:inline-block;background:#64e4c0;width:6px;height:6px;border-radius:50%;vertical-align:middle;margin-right:8px}
.topbar{padding:0 28px;min-height:84px;border-color:#f0eef7;box-shadow:0 1px 10px #1b15330b;position:relative;z-index:10}.nav-inner{width:min(1320px,100%);margin:auto;display:flex;align-items:center;justify-content:space-between;gap:22px}.brand{font-size:28px;letter-spacing:-.065em;font-weight:900;color:#171331;gap:12px}.brand strong{font-size:9px;letter-spacing:.12em;margin-top:1px;font-weight:800}.brand-dot{color:#6657f6}.brand small{display:none}.mark{width:47px;height:47px;border-radius:15px;background:linear-gradient(135deg,#453bca,#8c6bff);box-shadow:0 7px 16px #5142d737}.mark svg{width:40px;height:40px}
.topbar nav{gap:28px}.topbar nav a.nav-text{font-size:13px;color:#464059;font-weight:750}.topbar nav a:hover{color:#5142d7}.nav-join{font-size:12px;padding:11px 18px!important}.nav-avatar{background:#ebe9ff;color:#443cbe!important;border-radius:50%;width:35px;height:35px;display:grid;place-items:center;font-size:14px;font-weight:900}.nav-logout{background:transparent;border:1px solid #dad6f0;border-radius:11px;padding:8px 13px;color:#5142d7;font-weight:800;cursor:pointer}.menu-toggle{display:none;border:1px solid var(--line);border-radius:11px;background:white;font-size:18px;padding:5px 11px}
.rolebar{padding:0 28px;background:white;border-bottom:1px solid var(--line)}.role-inner{width:min(1320px,100%);margin:auto;display:flex;justify-content:space-between;gap:18px;align-items:center;min-height:51px}.role-identity{font-size:12px;color:#5b5678}.role-identity b{color:var(--navy)}.online-dot{display:inline-block;width:7px;height:7px;background:#22b78d;border-radius:50%;margin-right:5px}.role-links{display:flex;gap:22px;align-items:center;flex-wrap:wrap}.role-links a{font-size:12px;font-weight:750;color:#575070}.role-links a:hover{color:var(--blue)}
.btn{background:#5c4ae6;border:1px solid #5c4ae6;border-radius:13px;padding:12px 20px;box-shadow:0 8px 18px #5142d71c;color:white!important;font-weight:800;font-size:13px;line-height:1.45;gap:12px;min-height:44px}.btn:hover{background:#4536bd;border-color:#4536bd;box-shadow:0 11px 24px #5142d738}.btn.secondary{color:#5142d7!important;border-color:#ded9fb;box-shadow:none}.btn.secondary:hover{background:#f1efff}.btn.amber{background:#ffbd71;border-color:#ffbd71;color:#29203d!important}.btn.amber:hover{background:#ffca8d}.btn.outline-white{border-color:#ffffff9c;box-shadow:none;background:transparent;color:white!important}.btn.outline-white:hover{background:#ffffff20}.btn.small{border-radius:10px;min-height:35px;padding:7px 13px;font-size:12px}
.card{border:1px solid #ecebf4;border-radius:19px;box-shadow:var(--shadow);padding:24px;background:#fff}
.eyebrow{font-size:11px;letter-spacing:.16em;color:#6759d6;font-weight:900}.muted,small,.meta{color:var(--muted)}
.hero{min-height:565px;position:relative;overflow:hidden;border-radius:30px;padding:72px 64px;background:radial-gradient(circle at 79% 12%,#6f5ab8 0%,transparent 40%),radial-gradient(circle at 30% 95%,#293d91 0%,transparent 38%),linear-gradient(120deg,#16133a 1%,#292064 56%,#3f2e88 100%);grid-template-columns:1.1fr .88fr;gap:45px;color:white;box-shadow:0 22px 60px #241a6230}.hero:before{content:"";position:absolute;inset:0;background-image:radial-gradient(#ffffff18 1px,transparent 1px);background-size:22px 22px;mask-image:linear-gradient(90deg,transparent,#000);pointer-events:none}.hero:after{content:"";position:absolute;right:-90px;bottom:-230px;width:420px;height:420px;border:1px solid #ffffff27;border-radius:50%;pointer-events:none}.hero-copy,.hero-art{position:relative;z-index:1}.hero-tag{display:inline-flex;align-items:center;gap:10px;padding:8px 13px;border:1px solid #b9abf73c;border-radius:50px;background:#ffffff12;color:#d3cdff;font-size:10px;letter-spacing:.11em}.spark{width:7px;height:7px;border-radius:50%;background:#7ae1bd;box-shadow:0 0 0 4px #6dd3a928}.hero h1{font-size:clamp(3.2rem,5vw,5.6rem);line-height:1.06;letter-spacing:-.067em;color:white;margin:29px 0 18px}.hero h1 em{color:#ffc984;font-style:normal}.hero-copy>p{font-size:16px;line-height:1.85;color:#e0dff7;max-width:540px}.hero .actions{margin:30px 0;gap:14px}.hero-proof{display:flex;align-items:center;gap:15px;margin-top:37px}.hero-proof b{font-size:12px;display:block;color:#fff}.hero-proof small{font-size:11px;display:block;color:#bbb5e7}.proof-avatars{display:flex;align-items:center;font-size:12px;font-weight:800;width:87px;white-space:nowrap;color:white}.proof-avatars,.proof-avatars i{font-style:normal}.proof-avatars>i,.proof-avatars{position:relative}.proof-avatars{border-radius:50%;height:32px;width:32px;background:#f38e84;display:grid;place-items:center}.proof-avatars i{position:absolute;left:22px;top:0;display:grid;place-items:center;width:32px;height:32px;background:#4cbbac;border:2px solid #272064;border-radius:50%}.proof-avatars i+i{left:43px;background:#b4a4fa}
.hero-art{padding:13px;background:#25204e;border-radius:22px;border:1px solid #9483db94;box-shadow:0 28px 100px #0b08268f;transform:rotate(2deg);width:100%;min-width:0}.art-top{background:#272247;border-radius:10px 10px 0 0;padding:7px 9px;color:#b7b1df;display:flex;align-items:center;justify-content:space-between;font-size:9px}.fake-dots{display:flex;gap:4px}.fake-dots b{height:7px;width:7px;border-radius:50%;background:#fa8d80}.fake-dots b:nth-child(2){background:#ffce82}.fake-dots b:nth-child(3){background:#7bcfaa}.code-screen{background:#fff;border-radius:0 0 12px 12px;padding:22px;min-height:360px;color:#221e40}.code-crumb{color:#695cd6;letter-spacing:.13em;font-size:9px;font-weight:900}.code-crumb span{color:#b5add4;padding:0 5px}.code-screen h3{font-size:23px;margin:10px 0 7px}.code-hint{font-size:11px!important;color:#77728a!important;margin:0 0 16px}.fake-editor{background:#181c35;color:#c7d5f8;border-radius:11px;overflow:hidden}.editor-header{display:flex;justify-content:space-between;padding:11px 15px;border-bottom:1px solid #353952;font-size:10px;color:#b1b5d0}.editor-code{padding:16px 10px;display:grid;grid-template-columns:25px 1fr;row-gap:10px;font-size:11px}.editor-code code{font-size:11px;white-space:nowrap;background:transparent;color:#d5e0fe;padding:0;line-height:1.5;display:block}.line-no{color:#656d92;text-align:right;margin-right:7px}.syntax-purple{color:#bb96ff}.syntax-yellow{color:#ffcd84}.syntax-cyan{color:#7ce3d3}.syntax-green{color:#aee8ab}.floating-result{position:absolute;bottom:-21px;right:-14px;display:flex;gap:10px;align-items:center;padding:12px 17px;background:white;border-radius:15px;box-shadow:0 14px 35px #17133844;transform:rotate(-2deg)}.floating-result>span{border-radius:11px;background:#dff9eb;color:#1aa27b;width:32px;height:32px;display:grid;place-items:center;font-weight:900}.floating-result b{display:block;font-size:12px;color:#211d38}.floating-result small{display:block;font-size:10px;color:#77718d}
.quick-benefits{display:grid;grid-template-columns:repeat(3,1fr);gap:15px;background:white;margin-top:28px;padding:17px;border-radius:19px;border:1px solid #efedf6;box-shadow:var(--shadow)}.quick-benefits>div{display:flex;align-items:center;gap:15px;padding:4px 18px;border-right:1px solid #ebe8f2}.quick-benefits>div:last-child{border:0}.quick-benefits p{margin:0}.quick-benefits b{display:block;font-size:13px;color:#262139}.quick-benefits small{font-size:11px}.benefit-icon{width:43px;height:43px;border-radius:13px;display:grid;place-items:center;font-weight:800;font-size:21px}.benefit-icon.indigo{background:#efebff;color:#6853ef}.benefit-icon.mint{background:#e1f9f3;color:#139d80}.benefit-icon.coral{background:#fff0e7;color:#e68a59}
.section-heading{margin:56px 0 22px}.section-heading h2{font-size:clamp(1.6rem,2.5vw,2.3rem);margin:8px 0 4px}.section-heading p{font-size:13px;margin:0}.text-link{font-size:13px;font-weight:800;color:#5142d7}.grid.courses{grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}.course-card{padding:0!important;min-height:395px;overflow:hidden;display:flex;align-items:stretch;flex-direction:column;transition:transform .23s,box-shadow .23s;text-decoration:none!important}.course-card:hover{transform:translateY(-6px);box-shadow:0 23px 52px #3830811a;border-color:#d4cfff}.course-visual{height:166px;position:relative;overflow:hidden;background:radial-gradient(circle at 80% 20%,#9184fe 0%,transparent 46%),linear-gradient(140deg,#2d2f75,#6455d5);display:flex;align-items:center;justify-content:center}.course-visual:before{content:"";position:absolute;inset:18px 27px;border:1px solid #ffffff32;border-radius:30px;transform:rotate(-12deg)}.course-visual:after{content:"";position:absolute;right:-10px;top:-55px;width:190px;height:190px;border:1px solid #ffffff32;border-radius:50%}.level-2 .course-visual{background:radial-gradient(circle at 70% 30%,#5bdef0,transparent 50%),linear-gradient(145deg,#075b78,#10a5bb)}.level-3 .course-visual{background:radial-gradient(circle at 72% 30%,#ffd192,transparent 50%),linear-gradient(145deg,#a14f42,#e98957)}.level-4 .course-visual{background:radial-gradient(circle at 72% 20%,#84e3bf,transparent 49%),linear-gradient(140deg,#0b6565,#18a78b)}.level-5 .course-visual{background:radial-gradient(circle at 70% 15%,#a0b4ff,transparent 48%),linear-gradient(140deg,#243b85,#6076e8)}.level-6 .course-visual{background:radial-gradient(circle at 73% 16%,#d6a9ff,transparent 48%),linear-gradient(140deg,#513275,#af64c5)}.course-card.engineering .course-visual{background:radial-gradient(circle at 70% 20%,#ffc98c,transparent 50%),linear-gradient(130deg,#8e4c30,#d77f4a)}.visual-glyph{color:white;font-weight:900;font-size:58px;letter-spacing:-.12em;text-shadow:0 5px 30px #0002}.visual-no{position:absolute;top:11px;left:15px;color:#ffffffb9;font-weight:800;letter-spacing:.2em;font-size:12px}.visual-tag{position:absolute;bottom:12px;left:15px;font-size:9px;letter-spacing:.11em;color:#ffffffc8;font-weight:800}.course-card-body{display:flex;flex-direction:column;padding:18px 19px 15px;flex:1}.course-card-top{display:flex;align-items:center;justify-content:space-between}.course-card-top .small-text{font-size:11px;color:#8b879c}.course-card h3{font-size:18px;margin:16px 0 8px;line-height:1.3}.course-card h3 small{font-size:13px;display:block;margin-top:4px;color:#5b5673;font-weight:600}.course-card p{font-size:12px;line-height:1.75;color:#737086;margin-bottom:14px}.course-footer{display:flex;align-items:center;justify-content:space-between;gap:5px;margin-top:auto;padding-top:13px;border-top:1px solid #eeedf5;font-size:10px;color:#706e87}.course-arrow{width:28px;height:28px;background:#f1efff;color:#5745d5;border-radius:50%;display:grid;place-items:center;font-size:15px;font-weight:800}.chip{border-radius:7px;background:#efecff;color:#5c4ed2;font-size:10px;padding:5px 9px}.chip.orange{background:#fff0e1;color:#b66632}
.experience-banner{margin:78px 0 48px;padding:45px;border-radius:27px;background:#f0edff;display:grid;grid-template-columns:130px 1fr auto;align-items:center;gap:30px}.experience-banner h2{margin:10px 0}.experience-banner p{max-width:650px;color:#736d93;font-size:13px}.experience-symbol{font-size:70px;color:#6553df;background:#ded6ff;width:110px;height:110px;display:grid;place-items:center;border-radius:34px}.feature-checks{display:flex;gap:17px;flex-wrap:wrap;color:#5142b7;font-size:11px;font-weight:800}.learning-steps{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.learning-steps>div{background:white;border:1px solid var(--line);border-radius:17px;padding:28px}.learning-steps span{font-size:14px;font-weight:900;color:#6b5be4;background:#efebff;border-radius:12px;width:42px;height:42px;display:grid;place-items:center}.learning-steps h3{font-size:17px;margin:20px 0 9px}.learning-steps p{font-size:13px;color:#7a768c;margin:0}.source-note{font-size:11px;color:#9893a4;text-align:center;margin:62px auto 0;max-width:800px}
.catalogue-intro{background:linear-gradient(115deg,#201947,#4e3aa0);color:white;border-radius:27px;padding:49px 55px 44px;position:relative;overflow:hidden}.catalogue-intro:after{content:"";position:absolute;right:-100px;top:-90px;width:370px;height:370px;border:1px solid #ffffff2b;border-radius:50%;box-shadow:0 0 0 65px #ffffff0a,0 0 0 130px #ffffff0a}.catalogue-intro h1{color:white;font-size:clamp(2.5rem,4vw,3.7rem);margin:12px 0}.catalogue-intro p{color:#e0dcff;max-width:600px;font-size:14px}.catalogue-intro .eyebrow{color:#d1bfff}.searchbar{display:flex;gap:10px;align-items:center;margin-top:30px;background:white;border-radius:15px;max-width:540px;padding:4px 16px;position:relative;z-index:2}.searchbar>span:first-child{font-size:29px;color:#7667cf}.searchbar input{box-shadow:none;border:0!important;background:white!important;outline:0!important;margin:0!important;width:100%!important;height:47px}.search-shortcut{white-space:nowrap;font-size:10px;font-weight:800;color:#9990bc}.catalogue-toolbar{margin:33px 0 20px;display:flex;justify-content:space-between;align-items:center;gap:15px}.filter-pills{display:flex;gap:9px;flex-wrap:wrap}.filter-pill{background:white;color:#615d70;border:1px solid #e7e4f0;border-radius:25px;padding:9px 16px;font-size:12px;font-weight:800;cursor:pointer}.filter-pill:hover{border-color:#9c91f7}.filter-pill.active{background:#5c4ae6;border-color:#5c4ae6;color:#fff}.catalogue-count{font-size:11px;color:#807b8d}.empty-results{padding:40px;text-align:center;color:var(--muted)}[hidden]{display:none!important}
.footer{background:#15132b;color:#acabc2;padding:40px 28px;text-align:left}.footer-inner{max-width:1320px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:22px;flex-wrap:wrap}.footer-brand{font-size:28px;font-weight:900;color:white!important;letter-spacing:-.08em}.footer-brand span{color:#a998ff}.footer-brand small{font-size:9px;letter-spacing:.06em;color:#c0bbd6}.footer-inner>div{display:flex;gap:22px}.footer a{color:#c0bbd6;font-size:12px}.footer p{margin:0;font-size:11px;color:#82819f}
/* Course chapters, classroom and progress */
.page-head h1{font-size:clamp(2rem,3vw,3rem)}.page-head{margin-bottom:28px}.stats{gap:17px}.stats .card{min-height:127px;background:linear-gradient(145deg,#fff,#faf9ff);border-color:#e9e6f4;gap:10px}.stats b{font-size:38px;color:#5c4ae6}.stats span{font-size:12px;font-weight:700}.course-hero{background:radial-gradient(circle at 95% 20%,#8173ce 0%,transparent 38%),linear-gradient(125deg,#201747,#413394);border-radius:26px;min-height:235px;padding:47px}.course-hero h1{color:white;font-size:clamp(2.2rem,3.2vw,3.6rem)}.course-hero p{color:#e4ddff}.course-count{background:#ffffff18;border:1px solid #ffffff40;min-width:178px;padding:22px}.course-count b{font-size:50px;color:#fff}.course-count span{font-size:12px;color:#eee5ff}.progresscard{padding:23px 24px;background:white;border-radius:16px;border:1px solid var(--line);margin-top:24px}.progresscard b{display:block;margin-bottom:12px;font-size:13px}.progress{height:9px;background:#ebe9f5}.progress span{background:linear-gradient(90deg,#5c4ae6,#1cc4a2)}
.module-accordion{margin:15px 0;border:1px solid #ebe8f3;border-radius:18px;background:white;box-shadow:var(--shadow);overflow:hidden}.module-accordion summary{display:flex;align-items:center;gap:14px;padding:20px 22px;font-weight:800;font-size:15px;color:#29223f;list-style:none}.module-accordion summary::-webkit-details-marker{display:none}.module-accordion summary .module-no{display:grid;place-items:center;width:37px;height:37px;border-radius:12px;background:#f1efff;color:#5c4ae6;font-size:12px}.module-accordion summary .module-name{flex:1}.module-accordion summary .module-count{font-size:11px;color:#898398;font-weight:650}.module-accordion summary .caret{color:#8176bd;transition:transform .2s}.module-accordion[open] summary .caret{transform:rotate(180deg)}.module-accordion .lesson-list{padding:0 16px 15px;gap:0}.module-accordion .lesson-row{border:0;border-top:1px solid #f0edf5;border-radius:0;box-shadow:none;margin:0;padding:16px 9px}.module-accordion .lesson-num{width:38px;text-align:center;background:#f6f5fb;color:#706a91}.module-accordion .lesson-row .lesson-detail b{font-size:13px}.module-accordion .lesson-detail small{font-size:10px;margin-top:5px}.review-indicator{display:inline-flex;align-items:center;gap:6px;border-radius:7px;padding:5px 9px;font-size:10px;font-weight:800;background:#fff3e6;color:#a5692a}.review-indicator.approved{background:#e4f9f1;color:#11866b}.review-indicator.changes_requested{background:#fff0f0;color:#ae5555}
.lesson-layout{grid-template-columns:minmax(0,1fr) 294px;gap:25px}.lesson-main{min-width:0}.lesson-title{padding:35px;border-radius:23px;background:linear-gradient(115deg,#231c50,#5a47b4);color:white;margin:0 0 22px}.lesson-title h1{color:white;font-size:clamp(1.8rem,2.8vw,2.9rem);margin:15px 0}.lesson-title .muted{color:#dbd6f6}.lesson-section{padding:29px 33px;margin-bottom:18px;border-radius:18px;scroll-margin-top:30px}.lesson-section h2{font-size:20px;color:#28203f}.lesson-section .preserve{font-size:14px;line-height:2.04;color:#5d5774;white-space:pre-wrap}.lesson-aside{top:20px}.lesson-aside .card{padding:24px;margin-bottom:15px}.lesson-aside h3{font-size:15px;margin-bottom:17px}.lesson-aside p{align-items:start}.lesson-aside p span{text-align:right}.classroom-toc{display:grid;gap:6px}.classroom-toc a{padding:7px 11px;border-radius:9px;font-size:12px;font-weight:750;color:#706a8c}.classroom-toc a:hover{background:#f4f2ff;color:#5142d7;text-decoration:none}.classroom-nav{display:flex;justify-content:space-between;align-items:center;gap:10px;margin:24px 0}.classroom-nav a{font-size:12px;font-weight:800}.classroom-nav span{font-size:11px;color:#8c879a}.icon-heading{gap:13px}.lesson-section .icon-heading>span{width:37px;height:37px;background:#efedff;border-radius:11px;display:grid;place-items:center;font-size:19px}.lab{border-color:#ded9fe;background:#fbfaff}.lab-output{background:#1b1b36;color:#b4f6de;border-radius:13px}.question{border-color:#f0edf7}.question h3{font-size:14px}.option{border-radius:12px;border-color:#e9e5f1;padding:12px 16px}.option:hover{background:#f7f5ff}.option:has(input:checked){border-color:#8b7aff;background:#f0edff}.quiz-feedback{background:#eafaf3}
.review-actions{padding:21px;border:1px dashed #cbc4ef;background:#faf8ff;border-radius:15px;margin:15px 0}.review-actions h3{margin:0 0 13px}.review-actions form{display:grid;gap:12px}.review-actions .review-buttons{display:flex;flex-wrap:wrap;gap:9px}.review-actions .btn.danger-button{background:#b54e69;border-color:#b54e69}.review-toolbar{display:flex;gap:12px;align-items:center;flex-wrap:wrap;margin-bottom:20px}.review-toolbar select{max-width:210px;margin:0}.review-table th{background:#f5f3ff}.review-table td{font-size:12px;vertical-align:middle}.review-table a{font-weight:800}.review-summary{margin:20px 0;padding:18px;border-radius:14px;background:#f2efff;font-size:13px;color:#504680}.lesson-section .review-disclaimer{background:#fff7e8;color:#8b6633;padding:15px;border-radius:11px;font-size:12px;margin-bottom:8px}
.auth-layout{border-radius:26px;max-width:1020px;margin-top:40px}.auth-image{background:radial-gradient(circle at 80% 85%,#705de8,transparent 60%),linear-gradient(150deg,#211949,#4940a5);padding:68px 50px}.auth-image h2{color:white}.form-card{max-width:570px}.form-card h1{font-size:33px}.form-card form{gap:19px}.form-card .btn{margin-top:9px}.install{max-width:750px}.panel-strip{background:#edeaff}.breadcrumbs{color:#817b99;font-size:12px}.breadcrumbs a{color:#5a4ac9;font-weight:700}
@media(max-width:1200px){.grid.courses{grid-template-columns:repeat(3,minmax(0,1fr))}.hero{padding:58px 42px;gap:25px}.hero h1{font-size:clamp(3rem,4.7vw,4.8rem)}.experience-banner{grid-template-columns:90px 1fr}.experience-banner .btn{grid-column:2;justify-self:start}.experience-symbol{width:80px;height:80px;font-size:50px}}
@media(max-width:930px){.grid.courses{grid-template-columns:repeat(2,minmax(0,1fr))}.hero{grid-template-columns:1fr;gap:35px}.hero-art{max-width:560px;margin:auto;transform:none}.role-inner{flex-direction:column;align-items:start;padding:10px 0}.role-links{gap:16px}.lesson-layout{grid-template-columns:1fr}.lesson-aside{position:static;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.lesson-aside .card{margin-bottom:0}}
@media(max-width:700px){.container{width:min(100% - 30px,540px);padding-top:20px;padding-bottom:65px}.topbar{padding:10px 14px;min-height:65px}.nav-inner{flex-wrap:wrap}.brand{font-size:24px}.brand strong{font-size:7px}.mark{width:39px;height:39px}.mark svg{width:35px;height:35px}.menu-toggle{display:block}.topbar nav{display:none;flex-direction:column;align-items:stretch;width:100%;gap:12px;padding:12px 0}.topbar nav.is-open{display:flex}.nav-avatar{display:none}.site-promo{font-size:10px}.site-promo a{display:inline-block}.rolebar{padding:0 15px}.role-links{gap:15px}.hero{padding:43px 25px;border-radius:23px;min-height:0}.hero h1{font-size:clamp(2.6rem,10vw,4rem)}.hero-copy>p{font-size:14px}.hero-tag{font-size:8px}.hero-art{padding:9px}.code-screen{min-height:0;padding:16px}.editor-code code{font-size:10px}.floating-result{right:0;bottom:-13px}.quick-benefits,.learning-steps{grid-template-columns:1fr}.quick-benefits>div{border-right:0;border-bottom:1px solid var(--line);padding:12px 3px}.quick-benefits>div:last-child{border:0}.grid.courses{grid-template-columns:1fr}.course-card{min-height:355px}.course-visual{height:160px}.section-heading{margin:42px 0 18px;align-items:start}.section-heading h2{font-size:1.8rem}.experience-banner{padding:27px;grid-template-columns:1fr;gap:17px;margin:50px 0 35px}.experience-banner .btn{grid-column:1}.experience-symbol{height:65px;width:65px;font-size:41px}.catalogue-intro{padding:36px 23px}.catalogue-toolbar{align-items:start;flex-direction:column}.filter-pills{gap:6px}.filter-pill{padding:8px 12px;font-size:11px}.footer-inner{flex-direction:column;align-items:start;gap:20px}.footer{padding:34px 20px}.course-hero{padding:31px 25px}.lesson-title{padding:26px 23px}.lesson-section{padding:24px 20px}.lesson-aside{grid-template-columns:1fr}.auth-layout{margin:10px auto}.auth-image{padding:33px}.form-card{padding:25px}.stats{gap:10px}.stats .card{padding:16px;min-height:109px}.stats b{font-size:29px}.module-accordion summary{padding:16px 12px;font-size:13px}.module-accordion .lesson-row{flex-wrap:wrap}.module-accordion .lesson-detail{flex-basis:73%}.module-accordion .lesson-row .btn{margin-left:45px}.role-links a{font-size:11px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}
/* Structured reading blocks for long syllabus explanations */
.teaching-content{display:grid;gap:16px}.teaching-unit{border-left:3px solid #dcd6ff;background:#faf9fe;border-radius:0 12px 12px 0;padding:17px 21px}.teaching-unit h3{font-size:12px;color:#5d4bcc;text-transform:uppercase;letter-spacing:.09em;margin:0 0 10px}.teaching-unit p{font-size:13px;line-height:1.95;color:#524e68;margin:0}.teaching-unit:first-child{border-left-color:#17b795;background:#f3fbf8}.teaching-unit:first-child h3{color:#0c9579}.continue-card{display:flex;align-items:center;gap:24px;padding:24px 28px;border-radius:20px;background:linear-gradient(115deg,#292052,#5542a5);color:white;margin:28px 0}.continue-card .continue-icon{width:63px;height:63px;flex:none;border-radius:18px;background:#ffffff26;display:grid;place-items:center;font-size:26px}.continue-card h2{font-size:22px;color:white;margin:6px 0}.continue-card .eyebrow{color:#ddcaff}.continue-card p{margin:0;color:#ded7ff;font-size:12px}.continue-card .btn{margin-left:auto;background:#ffbe75;border-color:#ffbe75;color:#312447!important}@media(max-width:700px){.continue-card{flex-direction:column;align-items:start;padding:23px;gap:13px}.continue-card .btn{margin:0}.teaching-unit{padding:15px}}