:root{color-scheme:dark;--bg:#090d19;--panel:#141c30;--blue:#263553;--lavender:#baa5d5;--pink:#e7c6cd;--ink:#f3eee9;--muted:#a7acc0;--line:rgba(207,200,226,.16);--title:Georgia,'Times New Roman',serif;--body:system-ui,-apple-system,'Segoe UI',sans-serif}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--body);font-size:14px;line-height:1.55}button,a,select,input{-webkit-tap-highlight-color:transparent}button,select,input{font:inherit}button{cursor:pointer;color:inherit}a{color:var(--pink)}button:focus-visible,a:focus-visible,select:focus-visible,input:focus-visible{outline:2px solid var(--pink);outline-offset:4px}button:disabled{opacity:.5;cursor:wait}.stars{position:fixed;inset:0;pointer-events:none;background:radial-gradient(ellipse at 20% 0%,#26304c66,transparent 48%),radial-gradient(ellipse at 90% 75%,#30213c55,transparent 50%);z-index:-1}.stars:after{content:'';position:absolute;inset:0;background-image:radial-gradient(1px 1px at 10% 12%,#d4c6e9 50%,transparent),radial-gradient(1px 1px at 72% 35%,#d4c6e9 50%,transparent),radial-gradient(1px 1px at 45% 69%,#d4c6e9 50%,transparent);background-size:190px 240px;opacity:.35}.shell{max-width:1000px;margin:auto;padding:0 28px}.topbar{height:86px;display:flex;align-items:center;gap:22px;border-bottom:1px solid var(--line)}.brand{text-decoration:none;color:var(--ink);font-family:var(--title);letter-spacing:3px;font-size:13px;line-height:1.25}.brand span{display:block}.brand-star{color:var(--pink);font-size:27px}.avatar{margin-left:auto;width:38px;height:38px;border:1px solid #c1acd766;border-radius:50%;background:linear-gradient(140deg,#434459,#182137);font-family:var(--title);font-size:17px}main{padding:28px 0 112px;min-height:80vh}.eyebrow{font-size:10px;letter-spacing:2.3px;text-transform:uppercase;color:var(--lavender);margin:0 0 12px}.muted{color:var(--muted)}h1,h2,h3{font-family:var(--title);font-weight:400;line-height:1.12}h1{font-size:50px;margin:0 0 18px;letter-spacing:-1px}h2{font-size:28px;margin:0}h3{font-size:23px;margin:0 0 9px}p{margin:10px 0 18px}.demo-label{font-size:11px;color:#d9c7e5;background:#b997d911;border:1px solid #b997d933;border-radius:20px;padding:5px 12px;display:inline-flex;gap:7px;margin-bottom:24px}.hero{display:grid;grid-template-columns:1.1fr 1fr;min-height:280px;align-items:center;gap:28px;margin-bottom:24px}.hero .lead{max-width:340px;color:#bcc0ce}.cosmos{position:relative;height:280px;overflow:hidden;border-radius:24px;background:radial-gradient(ellipse at 70% 70%,#a890bd3b,transparent 60%)}.planet{position:absolute;width:228px;height:228px;left:50%;top:50%;transform:translate(-50%,-50%);border-radius:50%;background:radial-gradient(circle at 26% 25%,#c3c8df66,transparent 45%),radial-gradient(ellipse at 38% 43%,#777d9e 0%,#394a66 25%,#172a46 48%,#090e21 70%);box-shadow:inset -24px -15px 45px #05070c,6px 2px 0 #b9aac77a,10px 3px 17px #dfb3ce38}.planet:before{content:'';position:absolute;inset:8px;border-radius:50%;background:repeating-linear-gradient(24deg,transparent 0 23px,#c9cbe714 24px 26px,transparent 28px 50px);filter:blur(3px)}.orbit{position:absolute;width:305px;height:105px;left:50%;top:50%;transform:translate(-50%,-50%) rotate(-28deg);border:1px solid #d8b9d666;border-radius:50%;box-shadow:0 0 12px #ca98c41a}.cosmos .spark{position:absolute;font-family:var(--title);color:var(--pink);font-size:35px;right:18px;top:20px}.cosmos .caption{position:absolute;bottom:14px;left:24px;font-size:9px;letter-spacing:3px;color:#d9ccdf}.primary,.secondary{display:inline-flex;align-items:center;justify-content:center;gap:26px;border:1px solid #c7b4cf80;min-height:46px;border-radius:28px;padding:11px 24px;background:linear-gradient(115deg,#4b405b,#28334c);color:var(--ink);text-decoration:none}.primary:hover{background:linear-gradient(115deg,#655170,#394660)}.secondary{background:#ffffff05;border-color:var(--line)}.arrow{font-size:22px;line-height:1}.section-heading{display:flex;align-items:center;justify-content:space-between;gap:12px;margin:30px 0 18px}.link-button{background:none;border:0;color:var(--muted);font-size:12px;padding:8px 0}.continue{display:flex;align-items:center;gap:22px;background:linear-gradient(110deg,#31334d99,#182337cc);border:1px solid #c5b2d641;border-radius:20px;padding:23px 26px}.continue .info{flex:1}.continue .eyebrow{font-size:9px;margin-bottom:7px}.continue h3{margin-bottom:6px}.circle-button{border:1px solid #d6b9d866;width:45px;height:45px;border-radius:50%;background:#a29abc13;font-size:23px}.progress-track{height:3px;background:#ffffff12;border-radius:4px;margin-top:14px;overflow:hidden}.progress-track span{display:block;height:100%;background:linear-gradient(90deg,var(--lavender),var(--pink))}.topic-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.topic-card{padding:0;border:1px solid var(--line);border-radius:18px;overflow:hidden;background:#141a2b;text-align:left;transition:transform .15s}.topic-card:hover{transform:translateY(-3px)}.topic-art{position:relative;height:150px;overflow:hidden;background:radial-gradient(ellipse at 50% 85%,#81628966,transparent 65%),linear-gradient(135deg,#202c49,#111728)}.topic-art:before{content:'';position:absolute;width:110px;height:110px;border-radius:50%;left:calc(50% - 55px);top:22px;background:radial-gradient(circle at 30% 30%,#aab5d4,#3e4d73 40%,#141b34 68%);box-shadow:4px 1px 0 #c6afcc66,8px 1px 18px #c6afcc22}.topic-art:after{content:'';position:absolute;width:160px;height:50px;border:1px solid #cec1dc66;border-radius:50%;left:calc(50% - 80px);top:51px;transform:rotate(-30deg)}.art-1{background:radial-gradient(ellipse at 50% 85%,#bc82a850,transparent 60%),#1d213a}.art-1:before{width:70px;height:70px;left:calc(50% - 35px);top:40px}.art-2:before{border-radius:80px 80px 0 0;width:70px;height:115px;left:calc(50% - 35px);top:25px;background:linear-gradient(90deg,#9a8cb4,#34465e55,#bc9ba988)}.art-2:after{display:none}.art-3:before{background:radial-gradient(circle at 25% 25%,#bdaccf,#4c4663 40%,#14182c 70%)}.art-4:after{transform:rotate(30deg)}.topic-art .tiny-star{position:absolute;right:20px;top:17px;color:#e7c6cdbb;font-size:20px}.topic-body{padding:17px}.topic-body h3{font-size:22px;margin-bottom:7px}.topic-body p{font-size:11px;color:var(--muted);margin:0 0 14px;min-height:34px}.topic-footer{font-size:10px;color:#bfc0d0;display:flex;justify-content:space-between}.empty{border:1px dashed var(--line);border-radius:18px;padding:27px;color:var(--muted);text-align:center}.note{border-left:1px solid #b79ab988;padding-left:17px;margin:23px 0;color:var(--muted);font-size:12px}nav{position:fixed;bottom:0;left:50%;transform:translateX(-50%);width:min(100%,1000px);display:flex;justify-content:space-around;padding:14px 20px calc(13px + env(safe-area-inset-bottom));background:#0e1423f5;backdrop-filter:blur(12px);border-top:1px solid var(--line);z-index:10}nav button{border:0;background:none;display:grid;justify-items:center;gap:5px;padding:0 18px;color:#858da4;font-size:10px}nav button.active{color:var(--pink)}nav svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:1.4}.back{border:0;background:none;color:var(--muted);padding:0;margin-bottom:24px}.page-title{max-width:650px}.page-title h1{font-size:42px}.filters{display:flex;gap:12px;flex-wrap:wrap;margin:22px 0}.filters input{flex:1;min-width:160px}.filters input,select{color:var(--ink);border:1px solid var(--line);background:#121a2b;border-radius:12px;padding:11px 15px}select{max-width:100%}.lesson-list{display:grid;gap:12px}.lesson-row{display:flex;text-align:left;align-items:center;gap:16px;padding:18px;border:1px solid var(--line);border-radius:15px;background:linear-gradient(100deg,#24273b99,#111928);width:100%}.lesson-number{flex-shrink:0;width:35px;height:35px;border:1px solid #c4b5d84d;border-radius:50%;display:grid;place-items:center;color:var(--lavender);font-family:var(--title);font-size:16px}.lesson-row .lesson-info{flex:1}.lesson-row strong{display:block;font-weight:400;font-size:14px}.lesson-row small{color:var(--muted);font-size:10px}.section-label{font-size:11px;color:var(--lavender);letter-spacing:1px;text-transform:uppercase;margin:25px 0 12px}.lesson-body{font-size:15px;line-height:1.8;max-width:720px}.lesson-body h2{margin:30px 0 15px;font-size:27px}.lesson-body p{margin:0 0 20px}.lesson-body blockquote{border-left:1px solid var(--lavender);margin:22px 0;padding:8px 0 8px 22px;color:#d1c4dc;font-family:var(--title);font-size:23px;line-height:1.45}.lesson-body pre{overflow:auto;padding:15px;background:#151c2d}.lesson-body code{font-size:13px}.media{margin:22px 0}.media video,.media img{max-width:100%;width:100%;border-radius:14px;max-height:480px;background:#03060d}.media audio{width:100%}.lesson-actions{margin-top:30px;display:flex;gap:12px;flex-wrap:wrap}.profile-panel{background:#141c2ba6;border:1px solid var(--line);border-radius:20px;padding:26px;margin:24px 0}.profile-header{display:flex;align-items:center;gap:18px;margin-bottom:22px}.profile-header .avatar{margin:0;width:58px;height:58px;font-size:24px}.profile-header h2{margin:0 0 5px}.profile-panel label{display:block;color:var(--muted);font-size:12px;margin:18px 0 8px}.stat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:20px 0}.stat{background:#141c2b;border:1px solid var(--line);border-radius:15px;padding:18px}.stat strong{display:block;font-family:var(--title);font-size:32px;font-weight:400}.stat small{color:var(--muted);font-size:11px}.event-card{padding:23px;border:1px solid var(--line);border-radius:17px;margin:14px 0;background:#141c2b}.loading{display:grid;place-items:center;min-height:50vh;color:var(--muted)}.orbit-loader{width:55px;height:55px;border:1px solid var(--line);border-top-color:var(--pink);border-radius:50%;animation:spin 1.5s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}#toast{position:fixed;bottom:95px;left:50%;transform:translateX(-50%);z-index:20;background:#343047;padding:12px 20px;border-radius:13px;border:1px solid var(--line);display:none;max-width:90vw}.locked{padding:35px;text-align:center;border:1px solid var(--line);border-radius:20px}.locked h2{margin:12px 0}.pill{font-size:10px;display:inline-block;padding:3px 8px;border-radius:10px;border:1px solid var(--line);color:var(--muted)}.footer-caption{text-align:center;color:#717c97;font-size:9px;letter-spacing:3px;margin-top:40px}
@media(max-width:650px){.shell{padding:0 20px}.topbar{height:72px}.hero{grid-template-columns:1fr;gap:0;position:relative;min-height:280px}.hero-copy{position:relative;z-index:1;max-width:70%;padding:15px 0}.hero h1{font-size:41px}.hero .lead{font-size:12px;max-width:210px}.cosmos{position:absolute;right:-20px;width:230px;height:280px;top:0;opacity:.62}.planet{width:220px;height:220px;left:72%}.orbit{left:72%;width:290px}.cosmos .caption{display:none}.hero .primary{padding:10px 20px;gap:18px}.topic-grid{grid-template-columns:repeat(2,1fr);gap:12px}.topic-art{height:134px}.topic-body{padding:14px}.topic-body h3{font-size:21px}.continue{padding:20px;gap:12px}.continue h3{font-size:23px}.section-heading h2{font-size:26px}.page-title h1{font-size:35px}.stat{padding:13px}.stat strong{font-size:27px}.profile-panel{padding:21px}main{padding-top:22px}.demo-label{margin-bottom:12px}}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}