:root{color-scheme:dark;--bg:#07100f;--bg-rail:#0a1513;--panel:#0f1d1a;--panel-strong:#132520;--panel-soft:#0b1715;--panel-elevated:#162b25;--border:#26443d;--border-strong:#3c695e;--text:#eef4f1;--muted:#9db1aa;--muted-strong:#c4d2cd;--accent:#4fd1b0;--accent-soft:rgb(79 209 176/0.12);--gold:#d8b45f;--amber-soft:rgb(216 180 95/0.12);--danger:#ff9a9a;--danger-soft:rgb(255 154 154/0.12);--shadow:0 18px 60px rgb(0 0 0/0.32)}*{box-sizing:border-box}body,html{margin:0;min-height:100%;background:linear-gradient(180deg,rgb(22 43 37/.42),transparent 420px),var(--bg);color:var(--text);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}a{color:inherit}button,input,select{font:inherit}button{cursor:pointer}a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid rgb(79 209 176/.75);outline-offset:3px}.authShell,.lessonShell,.memberShell{margin:0 auto;min-height:100vh;width:min(1180px,calc(100% - 32px))}.authShell{align-items:center;display:grid;max-width:560px;padding:48px 0}.authPanel{background:linear-gradient(135deg,rgb(79 209 176/.12),transparent 48%),var(--panel-soft);border:1px solid var(--border);border-radius:8px;box-shadow:var(--shadow);padding:clamp(24px,5vw,38px)}.authBrand{align-items:baseline;border-bottom:1px solid var(--border);display:flex;gap:12px;margin-bottom:28px;padding-bottom:18px}.authBrand span{color:var(--gold);font-size:24px;font-weight:950;text-transform:uppercase}.authBrand small{color:var(--muted)}.authBrand small,.eyebrow{font-size:12px;font-weight:850;text-transform:uppercase}.eyebrow{color:var(--gold);letter-spacing:.08em;margin:0 0 14px}h1{font-size:clamp(36px,6vw,62px);letter-spacing:0;line-height:.98}h1,h2{margin:0}h2{font-size:20px;line-height:1.2}.lead{color:var(--muted);font-size:18px;line-height:1.65;margin:22px 0 0;max-width:780px}.authForm,.loginForm{display:grid;gap:16px;margin-top:28px}.formIntro{background:rgb(255 255 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var(--border);border-radius:8px}.courseCard,.lessonCard{display:grid;min-height:204px;padding:22px;text-decoration:none;transition:border-color .16s ease,transform .16s ease,background-color .16s ease}.courseCard:hover,.lessonCard:hover{background:var(--panel-strong);border-color:var(--accent);transform:translateY(-2px)}.courseCard h2,.lessonCard h3{font-size:21px;line-height:1.25;margin:14px 0 0}.courseCard p,.courseCard small,.emptyState p,.lessonBody,.lessonCard p,.lessonCard small,.lessonList small,.lessonList span,.lessonSummary,.moduleBlock p{color:var(--muted);line-height:1.55}.courseCard small,.lessonCard small{align-self:end;color:var(--accent);font-weight:850;margin-top:18px}.lessonList{display:grid;gap:10px;margin-top:16px}.lessonList a{display:grid;gap:6px;min-height:88px;padding:16px;text-decoration:none;transition:background-color .16s ease,border-color .16s ease}.lessonList 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.16s ease}.lessonRows a:hover{background:var(--panel-elevated);border-color:var(--border-strong)}.lessonRows strong{align-items:center;background:var(--accent-soft);border:1px solid rgb(79 209 176/.34);border-radius:8px;color:var(--accent);display:inline-flex;font-size:13px;font-weight:900;grid-row:1/3;height:44px;justify-content:center;width:44px}.lessonRows span{font-weight:850}.lessonRows small{color:var(--muted)}.lessonShell{column-gap:28px;display:grid;grid-template-columns:292px minmax(0,1fr)}.lessonShell .memberHeader{grid-column:1/-1}.lessonNav{background:var(--bg-rail);border-right:1px solid var(--border);display:grid;gap:20px;grid-auto-rows:min-content;max-height:calc(100vh - 78px);overflow:auto;padding:34px 20px 60px 0;position:sticky;top:0}.lessonNavHeader{border-bottom:1px solid var(--border);display:grid;gap:8px;padding-bottom:18px}.lessonNav a,.lessonNavHeader 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i:nth-child(2){width:78%}.loadingBars i:nth-child(3){width:52%}@keyframes pulse{0%{opacity:.35;transform:scale(.85)}to{opacity:1;transform:scale(1)}}@keyframes shimmer{0%{opacity:.38}to{opacity:.9}}@media (max-width:760px){.authShell,.lessonShell,.memberShell{width:min(100% - 24px,1180px)}.memberHeader{align-items:start;grid-template-columns:1fr;padding:18px 0}.memberNav{flex-wrap:wrap;justify-content:flex-start}.memberIdentity{justify-items:start}.memberEmail,.statusPill{justify-self:start;text-align:left}.courseGrid,.courseHero,.dashboardStats,.lessonCardGrid,.libraryHero,.libraryTools{grid-template-columns:1fr}.courseHero,.libraryHero{margin-top:34px}.librarySearch{grid-template-columns:1fr}.categoryTabs{justify-content:flex-start}.lessonRows a{align-items:start;grid-template-columns:38px minmax(0,1fr)}.lessonRows strong{height:38px;width:38px}.lessonShell{grid-template-columns:1fr}.lessonNav{border-right:0;border-bottom:1px solid var(--border);max-height:none;overflow:visible;padding:24px 0;position:static}.lessonPager{grid-template-columns:1fr}.videoChrome{align-items:start;display:grid}}@media (min-width:761px) and (max-width:1040px){.courseGrid{grid-template-columns:repeat(2,minmax(0,1fr))}.lessonShell{grid-template-columns:236px minmax(0,1fr)}.courseHero,.libraryHero{grid-template-columns:minmax(0,1fr) 280px}}