:root{--bg:#f6f3ea;--surface:#fffdf7;--surface-2:#ede8dc;--text:#17211f;--muted:#66706d;--brand:#173a34;--brand-2:#24594f;--gold:#c9a063;--line:#ded8cb;--shadow:0 18px 50px rgba(23,58,52,.10);--radius:22px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,system-ui,sans-serif;line-height:1.65}body.dark{--bg:#0e1715;--surface:#14211e;--surface-2:#1c2c28;--text:#f5f0e5;--muted:#abb8b4;--line:#2c403b;--shadow:0 18px 50px rgba(0,0,0,.25)}a{color:inherit;text-decoration:none}button{font:inherit}.topbar{position:sticky;top:0;z-index:20;display:flex;justify-content:space-between;align-items:center;padding:16px clamp(18px,5vw,72px);background:color-mix(in srgb,var(--bg) 90%,transparent);backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:10px;font-weight:800}.brand-mark{display:grid;place-items:center;width:42px;height:42px;border-radius:14px;background:var(--brand);color:#fff;font-size:.78rem;letter-spacing:.08em}.nav{display:flex;align-items:center;gap:18px}.nav a{font-weight:600;color:var(--muted)}.nav a:hover{color:var(--text)}.icon-button{border:1px solid var(--line);background:var(--surface);color:var(--text);border-radius:12px;width:40px;height:40px;cursor:pointer}.app-shell{width:min(1180px,calc(100% - 32px));margin:0 auto;padding:44px 0 80px}.hero{display:grid;grid-template-columns:1.15fr .85fr;gap:28px;align-items:stretch}.hero-copy,.hero-card,.panel,.module-card,.lesson-card,.quote,.quiz-box{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}.hero-copy{padding:clamp(30px,5vw,72px);background:linear-gradient(135deg,var(--brand),#0e2a25);color:white;overflow:hidden;position:relative}.hero-copy:after{content:"";position:absolute;right:-80px;bottom:-110px;width:280px;height:280px;border:1px solid rgba(255,255,255,.16);border-radius:50%}.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:.78rem;font-weight:800;text-transform:uppercase;letter-spacing:.14em;color:var(--gold)}h1,h2,h3{font-family:"Playfair Display",Georgia,serif;line-height:1.12;margin:0 0 14px}h1{font-size:clamp(2.7rem,7vw,5.6rem)}h2{font-size:clamp(2rem,4vw,3.2rem)}h3{font-size:1.55rem}.lead{font-size:1.06rem;max-width:700px;color:inherit;opacity:.88}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 18px;border-radius:14px;border:1px solid transparent;font-weight:800;cursor:pointer}.btn-primary{background:var(--gold);color:#1d211f}.btn-secondary{background:transparent;color:inherit;border-color:rgba(255,255,255,.35)}.hero-card{padding:28px;display:flex;flex-direction:column;justify-content:space-between}.progress-ring{width:150px;height:150px;border-radius:50%;display:grid;place-items:center;margin:18px auto;background:conic-gradient(var(--gold) calc(var(--progress)*1%),var(--surface-2) 0)}.progress-ring:before{content:"";width:116px;height:116px;border-radius:50%;background:var(--surface);position:absolute}.progress-ring strong{position:relative;font-size:1.6rem}.stat-row{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.stat{padding:14px;border-radius:16px;background:var(--surface-2);text-align:center}.stat b{display:block;font-size:1.2rem}.section{margin-top:44px}.section-head{display:flex;justify-content:space-between;gap:18px;align-items:end;margin-bottom:20px}.section-head p{margin:0;color:var(--muted);max-width:640px}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.module-card{padding:24px;display:flex;flex-direction:column;min-height:280px}.module-number{font-size:.75rem;font-weight:800;letter-spacing:.12em;text-transform:uppercase;color:var(--gold)}.module-card p,.lesson-card p,.muted{color:var(--muted)}.module-card .meta{margin-top:auto;padding-top:18px;display:flex;justify-content:space-between;border-top:1px solid var(--line);font-size:.88rem}.progress-bar{height:8px;background:var(--surface-2);border-radius:99px;overflow:hidden;margin:12px 0}.progress-bar span{display:block;height:100%;background:var(--gold);border-radius:inherit}.panel{padding:clamp(24px,4vw,44px)}.module-header{display:grid;grid-template-columns:1fr auto;gap:20px;align-items:end}.breadcrumbs{font-size:.88rem;color:var(--muted);margin-bottom:16px}.lesson-list{display:grid;gap:12px;margin-top:28px}.lesson-card{padding:20px;display:grid;grid-template-columns:auto 1fr auto;gap:16px;align-items:center;box-shadow:none}.lesson-index{width:44px;height:44px;border-radius:14px;background:var(--surface-2);display:grid;place-items:center;font-weight:800}.lesson-card.done .lesson-index{background:var(--brand);color:white}.lesson-card h3{font-family:Inter,sans-serif;font-size:1.05rem;margin:0}.lesson-card p{margin:4px 0 0;font-size:.9rem}.lesson-layout{display:grid;grid-template-columns:minmax(0,1fr) 310px;gap:24px}.lesson-body{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:clamp(24px,5vw,58px);box-shadow:var(--shadow)}.lesson-body h1{font-size:clamp(2.4rem,6vw,4.5rem)}.lesson-body h2{font-size:1.8rem;margin-top:38px}.lesson-body p{font-size:1.03rem}.quote{padding:24px;margin:28px 0;border-left:5px solid var(--gold);box-shadow:none}.quote p{margin:0;font-family:"Playfair Display",serif;font-size:1.35rem}.lesson-aside{position:sticky;top:96px;height:max-content}.lesson-aside .panel{padding:22px}.toc a{display:block;padding:9px 0;color:var(--muted);border-bottom:1px solid var(--line)}.quiz-box{padding:24px;margin-top:34px;box-shadow:none}.option{width:100%;text-align:left;padding:13px 15px;margin:7px 0;border:1px solid var(--line);border-radius:13px;background:var(--surface);color:var(--text);cursor:pointer}.option:hover{border-color:var(--gold)}.option.correct{border-color:#2c9c68;background:rgba(44,156,104,.12)}.option.wrong{border-color:#c84d4d;background:rgba(200,77,77,.1)}.lesson-nav{display:flex;justify-content:space-between;gap:12px;margin-top:28px}.footer{border-top:1px solid var(--line);padding:26px clamp(18px,5vw,72px);display:flex;justify-content:space-between;gap:18px;color:var(--muted)}.footer strong{color:var(--text)}.empty{padding:60px 20px;text-align:center}@media(max-width:900px){.hero,.lesson-layout{grid-template-columns:1fr}.grid{grid-template-columns:repeat(2,1fr)}.lesson-aside{position:static}.module-header{grid-template-columns:1fr}}@media(max-width:640px){.nav a{display:none}.app-shell{width:min(100% - 20px,1180px);padding-top:20px}.grid{grid-template-columns:1fr}.hero-copy,.hero-card,.panel,.lesson-body{border-radius:18px}.stat-row{grid-template-columns:1fr}.footer{flex-direction:column}.lesson-card{grid-template-columns:auto 1fr}.lesson-card>span:last-child{display:none}.lesson-nav{flex-direction:column}.btn{width:100%}}