:root{--bg: #0a0d14;--bg-soft: #111520;--bg-card: #161b28;--line: #1e2538;--line-soft: #181e30;--text: #edf0f8;--text-soft: #8a94b8;--muted: #4a5272;--accent: #5D94F8;--accent-bright:#7aabff;--accent-soft: rgba(93,148,248,.14);--link: #7aabff;--max: 1200px}*{box-sizing:border-box}html,body{margin:0;padding:0}html{background:var(--bg);color-scheme:dark}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,system-ui,sans-serif;font-feature-settings:"ss01","cv11";background:var(--bg);color:var(--text);line-height:1.55;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}img{max-width:100%;display:block}a{color:var(--link);text-decoration:none}a:hover{color:var(--accent-bright)}h1,h2,h3,h4{color:var(--text);font-weight:700;letter-spacing:-.025em;margin:0 0 .4em;line-height:1.08}h1{font-size:clamp(2.8rem,6vw,5.2rem);letter-spacing:-.04em}h2{font-size:clamp(1.7rem,2.8vw,2.4rem);letter-spacing:-.03em}h3{font-size:1.15rem;letter-spacing:-.01em;font-weight:600}p{margin:0 0 1em;color:var(--text-soft)}code{font-family:JetBrains Mono,ui-monospace,monospace;font-size:.82em}.container{max-width:var(--max);margin:0 auto;padding:0 32px}.nav{position:sticky;top:0;z-index:40;background:#0a0d14d6;backdrop-filter:saturate(160%) blur(14px);-webkit-backdrop-filter:saturate(160%) blur(14px);border-bottom:1px solid var(--line-soft)}.nav-inner{display:flex;align-items:center;justify-content:space-between;height:62px}.nav-brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:.95rem;letter-spacing:-.01em;color:var(--text);text-decoration:none;flex-shrink:0}.nav-brand:hover{color:var(--text)}.nav-brand img{width:30px;height:30px;border-radius:8px}.nav-links{display:flex;align-items:center;gap:4px}.nav-links a{color:var(--text-soft);font-size:.88rem;padding:6px 10px;border-radius:6px;transition:color .12s,background .12s;white-space:nowrap}.nav-links a:hover{color:var(--text);background:var(--bg-soft);text-decoration:none}.nav-links a.active{color:var(--text)}.nav-cta{background:var(--accent);color:#030818!important;font-weight:600!important;padding:7px 14px!important;border-radius:8px!important;transition:background .12s,transform .12s!important}.nav-cta:hover{background:var(--accent-bright)!important;color:#030818!important;transform:translateY(-1px)}.nav-ham{display:none;flex-direction:column;justify-content:center;gap:5px;background:none;border:none;cursor:pointer;padding:10px 8px;border-radius:8px;transition:background .12s;flex-shrink:0}.nav-ham:hover{background:var(--bg-soft)}.nav-ham span{display:block;width:22px;height:2px;background:var(--text);border-radius:2px;transform-origin:center;transition:transform .22s ease,opacity .22s ease}.nav-ham.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}.nav-ham.is-open span:nth-child(2){opacity:0;transform:scaleX(0)}.nav-ham.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 22px;border-radius:10px;font-weight:600;font-size:.92rem;border:1px solid transparent;transition:transform .12s ease,background .12s ease,border-color .12s ease;cursor:pointer;text-decoration:none}.btn:hover{transform:translateY(-1px);text-decoration:none}.btn-primary{background:var(--accent);color:#030818}.btn-primary:hover{background:var(--accent-bright);color:#030818}.btn-ghost{background:transparent;color:var(--text);border-color:var(--line)}.btn-ghost:hover{border-color:var(--accent);background:var(--accent-soft);color:var(--text)}.btn-store{background:var(--bg-card);border:1px solid var(--line);color:var(--text);padding:10px 20px;display:inline-flex;align-items:center;gap:10px;border-radius:10px;font-size:.88rem;font-weight:500;transition:border-color .12s,background .12s,transform .12s;text-decoration:none}.btn-store:hover{border-color:var(--accent);background:var(--bg-soft);color:var(--text);transform:translateY(-1px)}.btn-store svg{width:20px;height:20px;flex-shrink:0}.eyebrow{font-family:JetBrains Mono,ui-monospace,monospace;font-size:.72rem;color:var(--accent);letter-spacing:.16em;text-transform:uppercase;margin-bottom:14px;display:block}.section{padding:100px 0}.section-sm{padding:64px 0}.section-alt{background:var(--bg-soft)}footer{padding:52px 0 60px;border-top:1px solid var(--line-soft);color:var(--muted)}.foot-grid{display:grid;grid-template-columns:1fr 1fr 1fr 1fr;gap:40px;margin-bottom:48px}.foot-col-brand{grid-column:1 / 2}.foot-brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:.95rem;color:var(--text);margin-bottom:10px}.foot-brand img{width:28px;height:28px;border-radius:7px}.foot-tagline{font-size:.82rem;color:var(--muted);line-height:1.5;max-width:22ch}.foot-heading{font-family:JetBrains Mono,ui-monospace,monospace;font-size:.68rem;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin-bottom:14px}.foot-links{display:flex;flex-direction:column;gap:8px}.foot-links a{font-size:.88rem;color:var(--text-soft);transition:color .12s}.foot-links a:hover{color:var(--text)}.foot-bottom{border-top:1px solid var(--line-soft);padding-top:24px;display:flex;justify-content:space-between;align-items:center;font-size:.8rem;flex-wrap:wrap;gap:12px}.foot-bottom a{color:var(--muted)}.foot-bottom a:hover{color:var(--text-soft)}.badge{display:inline-block;font-size:.68rem;font-weight:600;letter-spacing:.06em;text-transform:uppercase;padding:3px 9px;border-radius:99px;font-family:JetBrains Mono,ui-monospace,monospace}.badge-free{background:#5d94f829;color:var(--accent-bright);border:1px solid rgba(93,148,248,.3)}.badge-pro{background:#7aabff1a;color:#c6d4ff;border:1px solid rgba(122,171,255,.25)}.feat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.feat-tile{background:var(--bg-card);border:1px solid var(--line);border-radius:14px;padding:28px 24px}.feat-tile .tile-icon{font-size:1.6rem;margin-bottom:14px}.feat-tile h3{font-size:1rem;margin-bottom:6px}.feat-tile p{font-size:.88rem;margin:0}.stats-strip{border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft);padding:28px 0}.stats-row{display:flex;justify-content:space-around;align-items:center;flex-wrap:wrap;gap:24px}.stat-item{text-align:center}.stat-val{font-size:2rem;font-weight:700;letter-spacing:-.03em;color:var(--text);display:block;font-family:JetBrains Mono,ui-monospace,monospace}.stat-label{font-size:.8rem;color:var(--text-soft);margin-top:2px}.feat-block{display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:center}.feat-block.reverse .feat-copy{order:2}.feat-block.reverse .feat-visual{order:1}.feat-copy h2{margin-bottom:16px}.feat-copy p{font-size:1.05rem}.feat-copy .course-list{margin:20px 0 0;padding:0;list-style:none;display:flex;flex-direction:column;gap:10px}.feat-copy .course-list li{display:flex;align-items:center;gap:12px;padding:12px 16px;background:var(--bg-card);border:1px solid var(--line);border-radius:10px;font-size:.92rem;color:var(--text-soft)}.feat-copy .course-list li .c-name{flex:1;color:var(--text);font-weight:500}.feat-visual{display:flex;justify-content:center}.mockup-card{background:var(--bg-card);border:1px solid var(--line);border-radius:16px;padding:24px;width:100%;max-width:340px;box-shadow:0 24px 60px #00001480}.mockup-card .mc-header{display:flex;align-items:center;gap:12px;margin-bottom:18px}.mockup-card .mc-icon{width:44px;height:44px;border-radius:10px;background:var(--accent-soft);display:flex;align-items:center;justify-content:center;font-size:1.3rem;border:1px solid rgba(93,148,248,.2);flex-shrink:0}.mockup-card .mc-title{font-weight:600;font-size:1rem;color:var(--text)}.mockup-card .mc-sub{font-size:.78rem;color:var(--text-soft);margin-top:2px}.mockup-card .mc-progress{margin-bottom:18px}.mockup-card .mc-progress-label{display:flex;justify-content:space-between;font-size:.75rem;color:var(--text-soft);margin-bottom:6px}.mockup-card .mc-bar{height:4px;background:var(--line);border-radius:99px;overflow:hidden}.mockup-card .mc-fill{height:100%;background:var(--accent);border-radius:99px;width:42%}.mockup-card .mc-lessons{display:flex;flex-direction:column;gap:6px}.mockup-card .mc-lesson{display:flex;align-items:center;gap:10px;padding:8px 10px;border-radius:8px;font-size:.82rem;color:var(--text-soft)}.mockup-card .mc-lesson.done{color:var(--text)}.mockup-card .mc-lesson .mc-dot{width:18px;height:18px;border-radius:50%;border:2px solid var(--line);flex-shrink:0;display:flex;align-items:center;justify-content:center}.mockup-card .mc-lesson.done .mc-dot{border-color:var(--accent);background:var(--accent-soft);color:var(--accent);font-size:.7rem}.mockup-card .mc-lesson .mc-time{margin-left:auto;font-size:.72rem;color:var(--muted);font-family:JetBrains Mono,monospace}.mockup-flashcard{background:var(--bg-card);border:1px solid var(--line);border-radius:18px;padding:28px;width:100%;max-width:340px;box-shadow:0 24px 60px #00001480}.mockup-flashcard .fc-label{font-family:JetBrains Mono,monospace;font-size:.68rem;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin-bottom:16px}.mockup-flashcard .fc-card{background:var(--bg-soft);border:1px solid var(--line);border-radius:12px;padding:28px 20px;text-align:center;margin-bottom:16px}.mockup-flashcard .fc-card .fc-q{font-size:.8rem;color:var(--text-soft);margin-bottom:10px}.mockup-flashcard .fc-card .fc-a{font-size:1.1rem;font-weight:600;color:var(--text);font-family:JetBrains Mono,monospace}.mockup-flashcard .fc-card .fc-tap{font-size:.72rem;color:var(--muted);margin-top:12px}.mockup-flashcard .fc-btns{display:grid;grid-template-columns:repeat(4,1fr);gap:6px}.mockup-flashcard .fc-btn{padding:8px 4px;border-radius:8px;text-align:center;font-size:.72rem;font-weight:600;letter-spacing:.03em;border:1px solid transparent}.fc-btn-again{background:#ff50501f;color:#ff7070;border-color:#ff505033}.fc-btn-hard{background:#ffa0281f;color:#ffa040;border-color:#ffa02833}.fc-btn-good{background:#5d94f824;color:var(--accent-bright);border-color:#5d94f840}.fc-btn-easy{background:#3cdc781f;color:#50dc88;border-color:#3cdc7833}.mockup-flashcard .fc-meta{font-size:.72rem;color:var(--muted);text-align:center;margin-top:12px;font-family:JetBrains Mono,monospace}.mockup-cert{background:#0e1220;border:1px solid rgba(93,148,248,.3);border-radius:18px;padding:32px 28px;width:100%;max-width:340px;box-shadow:0 24px 60px #00001499;position:relative;overflow:hidden}.mockup-cert:before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--accent),var(--accent-bright))}.mockup-cert .cert-badge{width:44px;height:44px;border-radius:50%;background:var(--accent-soft);border:2px solid var(--accent);display:flex;align-items:center;justify-content:center;font-size:1.3rem;margin-bottom:16px}.mockup-cert .cert-label{font-family:JetBrains Mono,monospace;font-size:.65rem;letter-spacing:.18em;text-transform:uppercase;color:var(--accent);margin-bottom:6px}.mockup-cert .cert-title{font-size:1.15rem;font-weight:700;color:var(--text);margin-bottom:16px;line-height:1.2}.mockup-cert .cert-name-label{font-size:.72rem;color:var(--muted);margin-bottom:4px}.mockup-cert .cert-name{font-size:1rem;font-weight:600;color:var(--text-soft);border-bottom:1px solid var(--line);padding-bottom:8px;margin-bottom:14px}.mockup-cert .cert-footer{display:flex;justify-content:space-between;align-items:flex-end}.mockup-cert .cert-footer .cert-issuer{font-size:.75rem;color:var(--text-soft);font-weight:600}.mockup-cert .cert-footer .cert-date{font-family:JetBrains Mono,monospace;font-size:.68rem;color:var(--muted)}.cta-section{background:var(--bg-soft);border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft);padding:88px 0;text-align:center}.cta-section h2{margin-bottom:12px}.cta-section p{font-size:1.05rem;max-width:48ch;margin:0 auto 32px}.cta-section .cta-actions{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}.hero{padding:96px 0 80px;border-bottom:1px solid var(--line-soft);position:relative;overflow:hidden}.hero-bg{position:absolute;inset:0;pointer-events:none;background:radial-gradient(ellipse 80% 60% at 60% 0%,rgba(93,148,248,.09) 0%,transparent 70%)}.hero-inner{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center;position:relative}.hero h1{margin-bottom:20px}.hero h1 .accent{color:var(--accent)}.hero .lede{font-size:1.1rem;max-width:52ch;color:var(--text-soft);margin-bottom:28px}.hero .actions{display:flex;gap:12px;flex-wrap:wrap}.hero-screens{display:flex;gap:16px;align-items:flex-end;justify-content:center}.hero-screen{border-radius:22px;overflow:hidden;border:1px solid var(--line);box-shadow:0 28px 64px #0000148c}.hero-screen img{display:block}.hero-screen:first-child{width:140px;margin-bottom:32px}.hero-screen:last-child{width:140px}.faq{display:flex;flex-direction:column;gap:0}.faq-item{border-top:1px solid var(--line-soft);padding:20px 0}.faq-item:last-child{border-bottom:1px solid var(--line-soft)}.faq-q{font-weight:600;color:var(--text);font-size:1rem;margin-bottom:8px}.faq-a{color:var(--text-soft);font-size:.93rem;margin:0}.cat-section{padding:60px 0 40px;border-bottom:1px solid var(--line-soft)}.cat-section:last-child{border-bottom:none}.cat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:24px}.cat-tile{background:var(--bg-card);border:1px solid var(--line);border-radius:12px;padding:18px 16px}.cat-tile h4{font-size:.92rem;margin-bottom:5px;color:var(--text)}.cat-tile p{font-size:.82rem;margin:0;color:var(--text-soft)}.cat-tile .ct-icon{font-size:1.2rem;margin-bottom:8px}.prose h2{font-size:1.35rem;margin-top:40px;margin-bottom:10px}.prose h3{font-size:1.05rem;margin-top:24px;margin-bottom:6px}.prose p,.prose li{color:var(--text-soft);font-size:.97rem;line-height:1.7}.prose ul{padding-left:20px}.prose a{color:var(--link)}.prose-wrap{max-width:720px;margin:0 auto;padding:60px 32px 100px}@media(max-width:900px){.foot-grid{grid-template-columns:1fr 1fr}.foot-col-brand{grid-column:1 / -1}.feat-block{grid-template-columns:1fr;gap:48px}.feat-block.reverse .feat-copy{order:1}.feat-block.reverse .feat-visual{order:2}.feat-grid,.cat-grid{grid-template-columns:repeat(2,1fr)}.hero-inner{grid-template-columns:1fr}.hero-screens{display:none}}@media(max-width:768px){.nav-ham{display:flex}.nav-links{display:none;flex-direction:column;align-items:stretch;gap:2px;position:absolute;top:62px;left:0;right:0;z-index:39;background:#0a0d14f7;backdrop-filter:saturate(180%) blur(20px);-webkit-backdrop-filter:saturate(180%) blur(20px);border-bottom:1px solid var(--line);padding:12px 16px 20px}.nav-links.nav-open{display:flex}.nav-links a{display:block!important;padding:12px 14px;font-size:1rem;border-radius:8px;color:var(--text-soft)}.nav-links a.active,.nav-links a:hover{color:var(--text);background:var(--bg-soft)}.nav-links .nav-cta{background:var(--accent)!important;color:#030818!important;text-align:center;margin-top:8px;font-size:.95rem!important;padding:13px 14px!important;border-radius:10px!important}.feat-grid,.cat-grid{grid-template-columns:1fr}.stats-row{gap:16px}}@media(max-width:560px){.container{padding:0 18px}.foot-grid{grid-template-columns:1fr 1fr;gap:28px}.section{padding:72px 0}.btn{padding:11px 18px;font-size:.88rem}.hero{padding:64px 0 56px}h1{font-size:clamp(2.2rem,9vw,2.8rem)}}@media(max-width:400px){.foot-grid{grid-template-columns:1fr}}