@import"https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700;800&family=Outfit:wght@400;500;600;700;800&display=swap";:root{font-family:DM Sans,system-ui,sans-serif;--accent:#8c5cf6;--bg:#090f20;--side:#151d31;--panel:#161f34;--panel2:#1b2740;--text:#f5f7ff;--muted:#9fb0ce;--border:#2d3a56;--glow:#242958;color:var(--text);background:var(--bg)}:root[data-theme=light]{--bg:#f6f8fd;--side:#fff;--panel:#fff;--panel2:#edf2fb;--text:#16213a;--muted:#61708b;--border:#dbe2f0;--glow:#e7e9ff}*{box-sizing:border-box}body{margin:0}button,input,textarea,select{font:inherit}button{cursor:pointer}button:disabled{opacity:.5;cursor:not-allowed}h1,h2,h3,p{margin-top:0}h1,h2,h3{font-family:Outfit,system-ui,sans-serif}h1{letter-spacing:-.04em}p{line-height:1.7}a{color:var(--accent)}.app{display:flex;min-height:100vh}.sidebar{width:246px;flex-shrink:0;background:var(--side);border-right:1px solid var(--border);position:sticky;top:0;height:100vh;padding:26px 15px;display:flex;flex-direction:column;z-index:10}.logo{display:flex;align-items:center;gap:12px;font-family:Outfit;font-size:22px;letter-spacing:.08em}.logo strong span{color:var(--accent)}.logo-symbol{font-family:Outfit;font-size:26px;font-weight:900;letter-spacing:-.14em;padding:1px 8px 1px 3px;border-radius:9px;color:#6f8fff;background:linear-gradient(140deg,#a55aff,#2767ef);background-clip:text;-webkit-background-clip:text;-webkit-text-fill-color:transparent}.sidebar nav{margin-top:45px;display:grid;gap:9px}.sidebar nav button,.signout{display:flex;gap:14px;align-items:center;width:100%;border:0;background:none;color:var(--muted);font-weight:700;text-align:left;padding:15px 14px;border-radius:12px}.sidebar nav button:hover,.sidebar nav button.active{background:var(--panel2);color:var(--text)}.sidebar nav button.active{box-shadow:inset 3px 0 var(--accent)}.sidebar-bottom{margin-top:auto}.mini-note{display:flex;gap:10px;align-items:center;color:var(--muted);padding:12px}.demo-label{display:block;font-size:10px;color:var(--muted);padding:10px}.main{width:100%;max-width:1600px;margin:auto;padding:0 6% 36px;min-width:0}.topbar{height:90px;display:flex;align-items:center;justify-content:space-between}.eyebrow{color:#a5b6ed;font-weight:800;letter-spacing:.2em;font-size:11px}.top-actions{display:flex;gap:12px;align-items:center}.theme-toggle,.secondary{border:1px solid var(--border);background:var(--panel);color:var(--text);border-radius:12px;padding:11px 16px;font-weight:700;display:inline-flex;align-items:center;gap:8px}.avatar{width:42px;height:42px;display:grid;place-items:center;border-radius:50%;background:linear-gradient(135deg,#9561f8,#3089f9);font-weight:800}.hero{background:radial-gradient(ellipse at 80% 45%,#303e86 0%,transparent 45%),linear-gradient(120deg,#26173f,#101e3d);border:1px solid #4b4b7b;border-radius:25px;min-height:345px;padding:50px;display:flex;align-items:center;justify-content:space-between;color:#fff;overflow:hidden}.hero>div:first-child{max-width:580px;z-index:1}.hero h1{font-size:clamp(36px,4.5vw,61px);line-height:1.06;margin:20px 0}.hero h1 span{color:#e9e5ff}.hero p{color:#d5dbf7;max-width:510px}.hero-orb{font-size:clamp(100px,14vw,190px);filter:drop-shadow(0 20px 30px #080d3b);padding:0 3%}.pill{display:inline-flex;align-items:center;gap:4px;border:1px solid #635d99;color:var(--text);border-radius:30px;padding:6px 12px;font-size:12px;background:#7e64ff12}.hero .pill{color:#eee9ff}.primary{border:0;border-radius:12px;background:linear-gradient(105deg,var(--accent),#3287fb);color:#fff;padding:13px 19px;display:inline-flex;align-items:center;justify-content:center;gap:10px;font-weight:800;box-shadow:0 8px 26px #3c5ff129}.primary:hover{filter:brightness(1.1)}.section-title{margin:36px 0 16px}.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}.stats>div,.panel,.lesson-card,.quiz-card{background:var(--panel);border:1px solid var(--border);border-radius:17px}.stats>div{padding:23px}.stats small{display:block;color:var(--muted);margin-bottom:10px}.stats strong{font-size:28px;font-family:Outfit}.section-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin:38px 0 16px}.section-head h2{margin:0}.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.lesson-card{color:var(--text);padding:0;text-align:left;overflow:hidden;transition:transform .2s,border-color .2s}.lesson-card:hover{transform:translateY(-3px);border-color:var(--accent)}.card-art{height:130px;background:radial-gradient(circle at 50% 40%,#4255a3,#222449 65%,#18253b);display:grid;place-items:center}.card-art span{font-size:64px}.card-info{padding:18px}.card-info h3{font-size:21px;margin:14px 0 6px}.card-info p{color:var(--muted);font-size:13px}.card-link{display:flex;gap:8px;align-items:center;color:#a9a2ff;font-weight:800}.page-head{padding:26px 0 20px}.page-head h1{font-size:clamp(32px,4vw,48px);margin:10px 0}.page-head p{color:var(--muted)}.search{display:flex;gap:10px;align-items:center;background:var(--panel);border:1px solid var(--border);border-radius:13px;padding:0 16px}.search input{background:none;border:0;outline:none;color:var(--text);padding:17px 0;width:100%}.category-head{display:flex;justify-content:space-between;align-items:center;margin:22px 0 12px}.chips{display:flex;flex-wrap:wrap;gap:10px}.chips button{background:var(--panel);border:1px solid var(--border);color:var(--text);border-radius:12px;padding:10px 14px;font-weight:600}.chips button.selected{background:color-mix(in srgb,var(--accent) 25%,var(--panel));border-color:var(--accent)}.chips button:hover{border-color:var(--accent)}.text-btn,.back{background:none;border:0;color:var(--accent);font-weight:700}.back{display:flex;align-items:center;gap:8px;margin:20px 0}.lesson-layout{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(310px,.8fr);gap:26px;align-items:start}.lesson-title{font-size:clamp(30px,3.8vw,48px);margin:18px 0}.illustration{height:300px;position:relative;border:1px solid var(--border);border-radius:24px;background:radial-gradient(circle at center,#334f95,#1a254b 45%,#111a34);overflow:hidden;display:flex;align-items:center;justify-content:center}.illustration>span{font-size:120px;z-index:2;filter:drop-shadow(0 14px 15px #0a102b)}.illustration small{position:absolute;bottom:18px;left:20px;color:#d5d9fa}.orbit{position:absolute;border:1px solid #8499fb55;border-radius:50%;width:70%;height:65%;transform:rotate(-25deg)}.orbit-b{width:90%;height:95%;transform:rotate(25deg)}.lesson-photo{width:100%;height:300px;object-fit:cover;border-radius:20px}.lesson-copy{font-size:17px;line-height:1.8;padding:25px 0}.lesson-copy p{white-space:pre-line}.source{font-size:12px;color:var(--muted)}.quiz-card{padding:25px;position:sticky;top:20px}.quiz-card h2{font-size:25px;margin:18px 0}.quiz-card>p{color:var(--muted)}.question-top{display:flex;justify-content:space-between;color:var(--muted);font-size:12px}.progress-track{height:7px;border-radius:20px;background:var(--panel2);margin:15px 0}.progress-track>div{height:100%;background:var(--accent);border-radius:20px;transition:width .2s}.options{display:grid;gap:10px;margin:22px 0}.options button{width:100%;display:flex;gap:12px;align-items:center;background:var(--panel2);color:var(--text);border:1px solid var(--border);border-radius:12px;text-align:left;padding:12px}.options button b{background:var(--panel);padding:8px 12px;border-radius:8px}.options button span{flex:1}.options button.right{border-color:#38c78d;background:#176d4a3d}.options button.wrong{border-color:#f16d78;background:#a72b3c36}.options button.dim{opacity:.55}.feedback{padding:13px;border-radius:12px;margin:12px 0 18px}.feedback p{margin:7px 0 0}.feedback.success{background:#157a4d33;border:1px solid #38c78d77}.feedback.error{background:#7a492433;border:1px solid #e6aa5777}.wide{width:100%;margin-top:12px}.trophy{text-align:center;font-size:55px}.score{font-size:52px;font-weight:800;text-align:center;color:var(--accent)}.panel{padding:24px;margin-top:16px}.panel p,.muted{color:var(--muted)}.progress-row{display:flex;justify-content:space-between;padding:14px 0;border-bottom:1px solid var(--border)}.studio-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}.panel label,.modal label,.auth-card label{display:grid;gap:8px;margin:16px 0;color:var(--muted);font-size:14px;font-weight:700}.panel input,.modal input,.modal select,.modal textarea,.auth-card input{width:100%;padding:13px;border:1px solid var(--border);border-radius:10px;background:var(--bg);color:var(--text);outline-color:var(--accent)}.panel input.color{width:100px;height:50px;padding:4px}.admin-list{margin-top:18px;max-height:360px;overflow:auto}.admin-list button{display:flex;justify-content:space-between;width:100%;gap:10px;text-align:left;background:none;color:var(--text);border:0;border-bottom:1px solid var(--border);padding:13px 0}.admin-list button span:last-child{color:var(--accent);white-space:nowrap}.modal-back{position:fixed;top:0;right:0;bottom:0;left:0;background:#000b;z-index:30;display:grid;place-items:center;padding:18px}.modal{background:var(--panel);border:1px solid var(--border);border-radius:20px;padding:24px;max-width:650px;width:100%;max-height:90vh;overflow:auto}.modal .section-head{margin:0}.notice{background:#5b3d2040;border:1px solid #b9965d66;border-radius:12px;padding:12px 15px;margin:10px 0;color:var(--text);display:flex;justify-content:space-between}.notice button{background:none;color:inherit;border:0;font-size:20px}.notice.static{display:block}.empty{padding:40px;text-align:center;border:1px dashed var(--border);border-radius:18px;color:var(--muted)}footer{margin-top:55px;padding:25px 0;border-top:1px solid var(--border);font-size:12px;color:var(--muted)}.auth-page{min-height:100vh;display:grid;grid-template-columns:1fr 1fr}.auth-art{padding:60px 10%;background:radial-gradient(circle at 60% 50%,#353d88,#111b3c 55%,#090f20);color:#fff;position:relative;overflow:hidden}.auth-art h1{font-size:clamp(42px,5vw,72px);margin-top:100px}.auth-art p{color:#d2d8f6}.auth-planet{font-size:150px;text-align:center;margin-top:20px}.auth-card{max-width:430px;width:calc(100% - 48px);margin:auto}.auth-card h2{font-size:34px;margin:18px 0}.auth-card p,.auth-card small{color:var(--muted)}.auth-card .primary{width:100%}.auth-card .text-btn{margin:14px 0}.message{min-height:25px;font-size:13px;color:var(--accent)}.loading{min-height:100vh;display:grid;place-content:center;gap:20px;text-align:center}.menu{display:none;border:0;background:none;color:var(--text)}.scrim{display:none}@media(max-width:1050px){.main{padding:0 4% 28px}.grid{grid-template-columns:repeat(2,1fr)}.lesson-layout{grid-template-columns:1fr}.quiz-card{position:static}}@media(max-width:760px){.sidebar{position:fixed;transform:translate(-100%);transition:transform .2s}.sidebar.open{transform:none}.scrim{display:block;position:fixed;top:0;right:0;bottom:0;left:0;background:#0009;z-index:9}.menu{display:block}.topbar{height:74px}.eyebrow{font-size:9px;letter-spacing:.1em}.hero{padding:28px;min-height:350px}.hero-orb{display:none}.hero h1{font-size:39px}.grid,.studio-grid{grid-template-columns:1fr}.stats{gap:8px}.stats>div{padding:15px}.stats strong{font-size:22px}.stats small{font-size:11px}.auth-page{grid-template-columns:1fr}.auth-art{display:none}.auth-card{padding:40px 0}.theme-toggle{font-size:12px;padding:9px}.lesson-layout{display:block}.illustration{height:220px}}