@font-face{font-family:Plus Jakarta Sans;font-style:normal;font-weight:200 800;font-display:swap;src:url(../media/12d4e8c1f08b4a66-s.0e__wj8580tc5.woff2)format("woff2");unicode-range:U+460-52F,U+1C80-1C8A,U+20B4,U+2DE0-2DFF,U+A640-A69F,U+FE2E-FE2F}@font-face{font-family:Plus Jakarta Sans;font-style:normal;font-weight:200 800;font-display:swap;src:url(../media/cabb10e1d7cbc7c1-s.10u7vx61f1ie7.woff2)format("woff2");unicode-range:U+102-103,U+110-111,U+128-129,U+168-169,U+1A0-1A1,U+1AF-1B0,U+300-301,U+303-304,U+308-309,U+323,U+329,U+1EA0-1EF9,U+20AB}@font-face{font-family:Plus Jakarta Sans;font-style:normal;font-weight:200 800;font-display:swap;src:url(../media/9f5a2b9f13a4ecbb-s.p.35a5cae5tspm2.woff2)format("woff2");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C4,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:Plus Jakarta Sans;font-style:normal;font-weight:200 800;font-display:swap;src:url(../media/d8aeca813a9ab546-s.p.18rizl4rsrl42.woff2)format("woff2");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}@font-face{font-family:Plus Jakarta Sans Fallback;src:local(Arial);ascent-override:98.88%;descent-override:21.15%;line-gap-override:0.0%;size-adjust:104.98%}.nszV1a_className{font-family:Plus Jakarta Sans,Plus Jakarta Sans Fallback;font-style:normal}.nszV1a_variable{--font-sans:"Plus Jakarta Sans", "Plus Jakarta Sans Fallback"}
@font-face{font-family:Fraunces;font-style:normal;font-weight:600;font-display:swap;src:url(../media/b28cfbb5f9a185a6-s.3_zjiw3hl_c2v.woff2)format("woff2");unicode-range:U+102-103,U+110-111,U+128-129,U+168-169,U+1A0-1A1,U+1AF-1B0,U+300-301,U+303-304,U+308-309,U+323,U+329,U+1EA0-1EF9,U+20AB}@font-face{font-family:Fraunces;font-style:normal;font-weight:600;font-display:swap;src:url(../media/2b5ea23cacbbbf6b-s.p.3a9eb2cv3so19.woff2)format("woff2");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C4,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:Fraunces;font-style:normal;font-weight:600;font-display:swap;src:url(../media/38571adff3a4075f-s.p.1pclt2l60k1wo.woff2)format("woff2");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}@font-face{font-family:Fraunces Fallback;src:local(Times New Roman);ascent-override:84.71%;descent-override:22.09%;line-gap-override:0.0%;size-adjust:115.45%}.HxB3ZG_className{font-family:Fraunces,Fraunces Fallback;font-style:normal;font-weight:600}.HxB3ZG_variable{--font-display:"Fraunces", "Fraunces Fallback"}
@font-face{font-family:JetBrains Mono;font-style:normal;font-weight:100 800;font-display:swap;src:url(../media/258bd0ab5fdd762a-s.2f7nqdagzwx2-.woff2)format("woff2");unicode-range:U+460-52F,U+1C80-1C8A,U+20B4,U+2DE0-2DFF,U+A640-A69F,U+FE2E-FE2F}@font-face{font-family:JetBrains Mono;font-style:normal;font-weight:100 800;font-display:swap;src:url(../media/99a2019bdfa8519b-s.176arc174-8zp.woff2)format("woff2");unicode-range:U+301,U+400-45F,U+490-491,U+4B0-4B1,U+2116}@font-face{font-family:JetBrains Mono;font-style:normal;font-weight:100 800;font-display:swap;src:url(../media/44e0cb21b0d052b7-s.0bp8oijd_gu96.woff2)format("woff2");unicode-range:U+370-377,U+37A-37F,U+384-38A,U+38C,U+38E-3A1,U+3A3-3FF}@font-face{font-family:JetBrains Mono;font-style:normal;font-weight:100 800;font-display:swap;src:url(../media/f9cd5a77d065db98-s.1fby2rem9ngyr.woff2)format("woff2");unicode-range:U+102-103,U+110-111,U+128-129,U+168-169,U+1A0-1A1,U+1AF-1B0,U+300-301,U+303-304,U+308-309,U+323,U+329,U+1EA0-1EF9,U+20AB}@font-face{font-family:JetBrains Mono;font-style:normal;font-weight:100 800;font-display:swap;src:url(../media/954d21e04331b2ae-s.p.0vfdmo25voy_0.woff2)format("woff2");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C4,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:JetBrains Mono;font-style:normal;font-weight:100 800;font-display:swap;src:url(../media/53897e768d329f66-s.p.3t6q91iet4nsy.woff2)format("woff2");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}@font-face{font-family:JetBrains Mono Fallback;src:local(Arial);ascent-override:75.79%;descent-override:22.29%;line-gap-override:0.0%;size-adjust:134.59%}.RDfPIG_className{font-family:JetBrains Mono,JetBrains Mono Fallback;font-style:normal}.RDfPIG_variable{--font-code:"JetBrains Mono", "JetBrains Mono Fallback"}
:root{--bg:#fff;--bg-sunken:#f7f8fa;--surface:#eef0f3;--surface-hover:#e4e7ec;--line:#e6e8ec;--line-strong:#d5d9e0;--text:#0a0b0d;--text-2:#5b616e;--text-3:#8a919e;--accent:#3b5bfd;--accent-hover:#2c4bea;--accent-soft:#e9edff;--accent-ink:#fff;--green:#1fbf5f;--green-soft:#e3f8ec;--yellow:#ffc83d;--yellow-soft:#fff5d6;--orange:#ff7a45;--orange-soft:#ffece4;--purple:#8b5cf6;--purple-soft:#f1ebff;--red:#f04438;--red-soft:#fdecea;--shadow-card:0 1px 2px #1018280a, 0 1px 0 #10182805;--shadow-pop:0 12px 32px #1018281f, 0 2px 6px #1018280f;--shadow-btn:inset 0 -3px 0 #00000029;--r-sm:8px;--r-md:12px;--r-lg:16px;--r-xl:24px;--r-pill:999px;--sidebar:248px;--font:var(--font-sans), system-ui, sans-serif;--font-serif:var(--font-display), Georgia, serif;--font-mono:var(--font-code), ui-monospace, monospace;--ease:cubic-bezier(.2, .8, .2, 1);--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}@media (prefers-color-scheme:dark){:root:not([data-theme=light]){--bg:#0b0d12;--bg-sunken:#10131a;--surface:#1a1e27;--surface-hover:#232835;--line:#232835;--line-strong:#313847;--text:#f2f4f7;--text-2:#a5acb9;--text-3:#6f7787;--accent:#6b84ff;--accent-hover:#8296ff;--accent-soft:#1d2547;--green-soft:#0f2c1c;--yellow-soft:#2e2610;--orange-soft:#33190f;--purple-soft:#261c3f;--red-soft:#3a1513;--shadow-card:0 0 0 1px #ffffff05;--shadow-pop:0 12px 32px #00000080;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}}:root[data-theme=dark]{--bg:#0b0d12;--bg-sunken:#10131a;--surface:#1a1e27;--surface-hover:#232835;--line:#232835;--line-strong:#313847;--text:#f2f4f7;--text-2:#a5acb9;--text-3:#6f7787;--accent:#6b84ff;--accent-hover:#8296ff;--accent-soft:#1d2547;--green-soft:#0f2c1c;--yellow-soft:#2e2610;--orange-soft:#33190f;--purple-soft:#261c3f;--red-soft:#3a1513;--shadow-card:0 0 0 1px #ffffff05;--shadow-pop:0 12px 32px #00000080;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}*{box-sizing:border-box}html,body,body{height:100%;margin:0}body{background:var(--bg);color:var(--text);font-family:var(--font);-webkit-font-smoothing:antialiased;text-rendering:optimizelegibility;font-size:15px;line-height:1.55}img{-webkit-user-drag:none}button{font:inherit;color:inherit;cursor:pointer}a{color:var(--accent)}h1,h2,h3,h4{letter-spacing:-.02em;text-wrap:balance;margin:0}p{text-wrap:pretty;margin:0}:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}::selection{background:var(--accent-soft)}.tabular{font-variant-numeric:tabular-nums}.shell{grid-template-columns:var(--sidebar) 1fr;height:100%;display:grid}.main{height:100%;overflow-y:auto}.page{max-width:1120px;margin:0 auto;padding:32px 40px 64px}.page-head{justify-content:space-between;align-items:center;gap:16px;margin-bottom:24px;display:flex}.page-title{font-size:28px;font-weight:700}.sidebar{border-right:1px solid var(--line);background:var(--bg);flex-direction:column;gap:4px;padding:20px 12px 16px;display:flex}.brand{letter-spacing:-.02em;color:var(--text);align-items:center;gap:10px;padding:4px 12px 20px;font-size:19px;font-weight:800;text-decoration:none;display:flex}.brand img{border-radius:9px;width:32px;height:32px}.nav-item{border-radius:var(--r-pill);height:44px;color:var(--text);transition:background .15s var(--ease);align-items:center;gap:14px;padding:0 14px;font-size:15px;font-weight:600;text-decoration:none;display:flex}.nav-item svg{flex:none}.nav-item:hover{background:var(--bg-sunken)}.nav-item.active{background:var(--surface);color:var(--accent)}.nav-badge{border-radius:var(--r-pill);background:var(--accent);min-width:22px;height:22px;color:var(--accent-ink);place-items:center;margin-left:auto;padding:0 7px;font-size:12px;font-weight:700;display:grid}.nav-section{color:var(--text-3);text-transform:uppercase;letter-spacing:.06em;padding:16px 14px 6px;font-size:12px;font-weight:700}.nav-course{border-radius:var(--r-pill);height:38px;color:var(--text-2);align-items:center;gap:10px;padding:0 14px;font-size:14px;font-weight:500;text-decoration:none;display:flex;overflow:hidden}.nav-course span{white-space:nowrap;text-overflow:ellipsis;overflow:hidden}.nav-course:hover{background:var(--bg-sunken);color:var(--text)}.nav-course.active{background:var(--surface);color:var(--text)}.sidebar-spacer{flex:1}.sidebar-user{border-radius:var(--r-lg);color:var(--text);align-items:center;gap:10px;padding:10px 12px;text-decoration:none;display:flex}.sidebar-user:hover{background:var(--bg-sunken)}.avatar{background:var(--accent);color:#fff;outline-offset:-1px;border-radius:50%;outline:1px solid #0000000f;flex:none;place-items:center;width:36px;height:36px;font-weight:700;display:grid;overflow:hidden}.avatar img{object-fit:cover;width:100%;height:100%}.card{background:var(--bg);border:1.5px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--shadow-card)}.card-pad{padding:20px}.btn{border-radius:var(--r-md);white-space:nowrap;height:44px;transition:transform .12s var(--ease), background .15s var(--ease), box-shadow .15s var(--ease);border:none;justify-content:center;align-items:center;gap:8px;padding:0 20px;font-size:15px;font-weight:700;display:inline-flex}.btn:active{transform:scale(.97)}.btn:disabled{opacity:.5;pointer-events:none}.btn-primary{background:var(--accent);color:var(--accent-ink);box-shadow:var(--shadow-btn)}.btn-primary:hover{background:var(--accent-hover)}.btn-green{background:var(--green);color:#fff;box-shadow:var(--shadow-btn)}.btn-ghost{background:var(--surface);color:var(--text)}.btn-ghost:hover{background:var(--surface-hover)}.btn-outline{background:var(--bg);border:1.5px solid var(--line-strong);color:var(--text)}.btn-outline:hover{background:var(--bg-sunken)}.btn-sm{border-radius:var(--r-sm);height:36px;padding:0 14px;font-size:14px}.btn-icon{width:40px;padding:0}.pill{border-radius:var(--r-pill);background:var(--surface);height:28px;color:var(--text-2);align-items:center;gap:6px;padding:0 10px;font-size:13px;font-weight:700;display:inline-flex}.pill-blue{background:var(--accent-soft);color:var(--accent)}.pill-green{background:var(--green-soft);color:var(--green)}.pill-yellow{background:var(--yellow-soft);color:#b07800}.pill-orange{background:var(--orange-soft);color:var(--orange)}.eyebrow{letter-spacing:.08em;text-transform:uppercase;color:var(--accent);font-size:12px;font-weight:800}.muted{color:var(--text-2)}.input{border-radius:var(--r-md);border:1.5px solid var(--line-strong);background:var(--bg);width:100%;height:48px;color:var(--text);font:inherit;padding:0 16px;font-size:15px;transition:border-color .15s}.input:focus{border-color:var(--accent);box-shadow:0 0 0 4px var(--accent-soft);outline:none}textarea.input{resize:none;height:auto;padding:12px 16px}.grid{gap:16px;display:grid}.row{align-items:center;gap:12px;display:flex}.stack{flex-direction:column;gap:12px;display:flex}.progress{border-radius:var(--r-pill);background:var(--surface);height:8px;overflow:hidden}.progress>div{border-radius:inherit;background:var(--green);height:100%;transition:width .5s var(--ease)}.diff{align-items:flex-end;gap:3px;display:inline-flex}.diff i{background:var(--line-strong);border-radius:2px;width:4px}.diff i.on{background:currentColor}.empty{text-align:center;place-items:center;gap:12px;padding:48px 24px;display:grid}
:root{--chat:380px}.shell{grid-template-columns:var(--sidebar) minmax(0, 1fr) var(--chat);height:100dvh}.page{max-width:920px;padding:32px 36px 64px}.brand-mark{background:var(--accent);width:32px;height:32px;color:var(--accent-ink);box-shadow:var(--shadow-btn);border-radius:9px;place-items:center;display:grid}.brand-mark-lg{border-radius:18px;width:64px;height:64px;margin-bottom:24px}.nav-label{flex:1;min-width:0}.nav-count{color:var(--text-3);font-size:12px;font-weight:700}.nav-item.active .nav-count{color:var(--accent)}.sidebar-email{text-overflow:ellipsis;white-space:nowrap;flex:1;min-width:0;font-size:13px;font-weight:600;overflow:hidden}.subject-icon{border-radius:9px;flex:none;place-items:center;width:30px;height:30px;display:grid}.subject-hero .subject-icon{border-radius:14px;width:52px;height:52px}.tone-blue{background:var(--accent-soft);color:var(--accent)}.tone-orange{background:var(--orange-soft);color:var(--orange)}.tone-green{background:var(--green-soft);color:var(--green)}.tone-purple{background:var(--purple-soft);color:var(--purple)}.subject-hero{border-radius:var(--r-xl);background:var(--bg-sunken);border:1.5px solid var(--line);gap:22px;margin-bottom:28px;padding:28px 32px;display:grid}.subject-hero .row{gap:16px}.hero-title{font-family:var(--font-serif);letter-spacing:-.03em;font-size:38px;font-weight:600;line-height:1.05}.hero-progress{gap:8px;display:grid}.levels{gap:32px;display:grid}.level-head{align-items:center;gap:14px;margin-bottom:12px;display:flex}.level-tag{border-radius:var(--r-md);flex:none;place-items:center;width:44px;height:44px;font-size:15px;font-weight:800;display:grid}.level-title{font-size:19px;font-weight:700}.level-desc{font-size:14px}.topics{gap:8px;display:grid}.topic{transition:border-color .15s var(--ease), box-shadow .15s var(--ease)}.topic.open{border-color:var(--accent);box-shadow:0 0 0 4px var(--accent-soft)}.topic-row{align-items:center;gap:4px;padding:6px 8px 6px 14px;display:flex}.topic-title{text-align:left;border-radius:var(--r-sm);background:0 0;border:none;flex:1;justify-content:space-between;align-items:center;gap:12px;min-height:44px;padding:0 8px;font-size:15px;font-weight:650;display:flex}.topic.done .topic-title span{color:var(--text-2)}.chev{color:var(--text-3);transition:transform .2s var(--ease);flex:none}.topic.open .chev{transform:rotate(180deg)}.check{border:2px solid var(--line-strong);background:var(--bg);color:#fff;width:24px;height:24px;transition:background .15s var(--ease), border-color .15s var(--ease), transform .12s var(--ease);border-radius:7px;flex:none;place-items:center;padding:0;display:grid;position:relative}.check:after{content:"";position:absolute;inset:-10px}.check:active{transform:scale(.9)}.check.on{background:var(--green);border-color:var(--green)}.topic-body{padding:0 22px 20px 52px;font-size:14.5px}.outcomes{gap:4px;margin:8px 0 18px;padding-left:18px;display:grid}.outcomes li::marker{color:var(--green)}.ask-panel{height:100%;min-height:0}.ask-title{font-size:15px;font-weight:750}.ask-sub{white-space:nowrap;text-overflow:ellipsis;font-size:13px;overflow:hidden}.ask-empty{text-align:center;margin:auto 0;padding:24px 12px;font-size:14px}.msg{white-space:pre-wrap;overflow-wrap:anywhere}.msg.md{white-space:normal}.msg.md p+p,.msg.md ul,.msg.md ol{margin-top:8px}.msg.md ul,.msg.md ol{margin-bottom:0;padding-left:18px}.msg.md strong{color:var(--accent)}.typing{background:radial-gradient(circle, var(--text-3) 3px, transparent 3.5px) 0 50% / 10px 10px repeat-x;width:28px;height:10px;animation:1s steps(3,end) infinite typing;display:inline-block}@keyframes typing{0%{clip-path:inset(0 100% 0 0)}to{clip-path:inset(0)}}.ask-chips{border-top:1.5px solid var(--line);margin:0;padding:10px 12px 0}.chip:disabled{opacity:.5}.ask-form{border-top:none;flex-direction:column;align-items:stretch}.ask-form textarea{font-size:14px}.ask-actions{justify-content:flex-end;align-items:center;gap:6px;display:flex}.lang-toggle{border-radius:var(--r-sm);border:1.5px solid var(--line-strong);background:var(--bg);min-width:40px;height:36px;margin-right:auto;font-size:12px;font-weight:800}.voice-bar{border-radius:var(--r-md);background:var(--green-soft);align-items:center;gap:10px;margin:0 12px 10px;padding:10px 12px;font-size:14px;font-weight:650;display:flex}.voice-bar .btn{margin-left:auto}.voice-dot{background:var(--green);border-radius:50%;width:10px;height:10px}.voice-bar.live .voice-dot{animation:pulse 1.2s var(--ease) infinite}@keyframes pulse{0%{box-shadow:0 0 #1fbf5f80}to{box-shadow:0 0 0 10px #1fbf5f00}}.ask-error{margin:0 12px 8px}.field{gap:6px;font-size:14px;font-weight:650;display:grid}.form-error{color:var(--red);background:var(--red-soft);border-radius:var(--r-sm);padding:10px 12px;font-size:14px}.form-info{color:var(--green);background:var(--green-soft);border-radius:var(--r-sm);padding:10px 12px;font-size:14px}.login{grid-template-columns:1fr 1fr;min-height:100dvh;display:grid}.login-art{background:var(--accent-soft);place-items:center;padding:48px;display:grid}.login-art-inner{max-width:440px}.login-art h1{font-family:var(--font-serif);letter-spacing:-.03em;margin-bottom:14px;font-size:44px;font-weight:600;line-height:1.05}.login-form{place-items:center;padding:32px 16px;display:grid}.login-card{gap:16px;width:100%;max-width:380px}@media (prefers-reduced-motion:reduce){*,:before,:after{transition:none!important;animation:none!important}}@media (max-width:1180px){:root{--chat:320px;--sidebar:220px}}@media (max-width:900px){.shell{grid-template-rows:auto 1fr auto;grid-template-columns:1fr;height:auto;min-height:100dvh}.sidebar{border-right:none;border-bottom:1px solid var(--line);flex-flow:wrap;align-items:center;padding:10px 12px}.brand{padding:4px 8px}.nav-section,.sidebar-spacer,.sidebar-email{display:none}.sidebar-user{margin-left:auto;padding:4px}.main{overflow:visible}.page{padding:20px 16px 40px}.ask-panel{border-left:none;border-top:1.5px solid var(--line);height:70dvh}.login{grid-template-columns:1fr}.login-art{padding:32px 16px}.login-art h1{font-size:32px}.topic-body{padding:0 16px 18px}.hero-title{font-size:30px}}
