.learn-page-wrapper{background:var(--bg,#fff);min-height:100vh;color:var(--ink,#1f2328);font-family:-apple-system,Segoe UI,system-ui,sans-serif}.learn-container{max-width:860px;margin:0 auto;padding:2rem 1.25rem 4rem}.learn-hero{border-bottom:1px solid var(--border,#e5e7eb);margin-bottom:2.5rem;padding:2rem 0 2.5rem}.learn-hero-title{letter-spacing:-.02em;color:var(--ink,#1f2328);margin:0 0 .625rem;font-size:2rem;font-weight:800}.learn-hero-subtitle{color:var(--ink-muted,#57606a);max-width:600px;margin:0;font-size:1.0625rem;line-height:1.6}.learn-roadmap-grid{grid-template-columns:repeat(3,1fr);gap:1.25rem;display:grid}@media (max-width:700px){.learn-roadmap-grid{grid-template-columns:1fr}}@media (min-width:701px) and (max-width:960px){.learn-roadmap-grid{grid-template-columns:repeat(2,1fr)}}.learn-roadmap-card{background:var(--surface,#f7f8fa);border:1px solid var(--border,#e5e7eb);color:inherit;border-radius:10px;flex-direction:column;gap:.875rem;padding:1.25rem;text-decoration:none;transition:border-color .15s,box-shadow .15s;display:flex}.learn-roadmap-card:hover{border-color:#7c3aed;box-shadow:0 2px 12px #7c3aed1f}.learn-roadmap-card-emoji{font-size:2rem;line-height:1}.learn-roadmap-card-body{flex-direction:column;flex:1;gap:.375rem;display:flex}.learn-roadmap-card-title{color:var(--ink,#1f2328);margin:0;font-size:1.125rem;font-weight:700}.learn-roadmap-card-desc{color:var(--ink-muted,#57606a);flex:1;margin:0;font-size:.875rem;line-height:1.5}.learn-roadmap-card-meta{color:var(--ink-muted,#57606a);align-items:center;gap:.5rem;margin-top:.5rem;font-size:.8125rem;display:flex}.learn-breadcrumb{color:var(--ink-muted,#57606a);flex-wrap:wrap;align-items:center;gap:.375rem;margin-bottom:1.5rem;font-size:.8125rem;display:flex}.learn-breadcrumb a{color:#7c3aed;text-decoration:none}.learn-breadcrumb a:hover{text-decoration:underline}.learn-breadcrumb-sep{color:var(--border,#e5e7eb);font-size:1rem}.learn-roadmap-header{border-bottom:1px solid var(--border,#e5e7eb);margin-bottom:2rem;padding-bottom:1.25rem}.learn-roadmap-title{letter-spacing:-.02em;margin:0 0 .25rem;font-size:1.75rem;font-weight:800}.learn-roadmap-count{color:var(--ink-muted,#57606a);margin:0;font-size:.875rem}.learn-module-list{flex-direction:column;gap:2.5rem;display:flex}.learn-module-heading{text-transform:uppercase;letter-spacing:.06em;color:var(--ink-muted,#57606a);border-bottom:1px solid var(--border,#e5e7eb);margin:0 0 .875rem;padding-bottom:.5rem;font-size:.8125rem;font-weight:700}.learn-lesson-list{flex-direction:column;gap:0;margin:0;padding:0;list-style:none;display:flex}.learn-lesson-item{border-bottom:1px solid var(--border,#e5e7eb);align-items:flex-start;gap:.875rem;padding:.875rem 0;display:flex}.learn-lesson-item:last-child{border-bottom:none}.learn-lesson-seq{color:var(--ink-muted,#57606a);font-variant-numeric:tabular-nums;min-width:2rem;padding-top:2px;font-size:.8125rem;font-weight:700}.learn-lesson-body{flex-direction:column;flex:1;gap:.25rem;display:flex}.learn-lesson-badges{flex-wrap:wrap;align-items:center;gap:.375rem;margin-bottom:.25rem;display:flex}.learn-lesson-title{color:var(--ink,#1f2328);font-size:.9375rem;font-weight:600;line-height:1.4;text-decoration:none}.learn-lesson-title:hover{color:#7c3aed;text-decoration:underline}.learn-lesson-topics{color:var(--ink-muted,#57606a);margin:0;font-size:.8125rem;line-height:1.4}.learn-lesson-duration{color:var(--ink-muted,#57606a);white-space:nowrap;padding-top:2px;font-size:.8125rem}.learn-tier-badge{text-transform:uppercase;letter-spacing:.04em;border-radius:4px;align-items:center;padding:1px 7px;font-size:.6875rem;font-weight:700;line-height:1.6;display:inline-flex}.learn-tier-core{color:#6d28d9;background:#ede9fe}.learn-tier-recommended{color:#1d4ed8;background:#dbeafe}.learn-tier-deep-dive{color:#4338ca;background:#e0e7ff}.learn-tier-professional-deep-dive{color:#374151;background:#f3f4f6}.learn-platform-badge{color:#b91c1c;background:#fee2e2;border-radius:4px;align-items:center;padding:1px 7px;font-size:.6875rem;font-weight:600;line-height:1.6;display:inline-flex}.learn-level-badge{background:var(--surface,#f7f8fa);color:var(--ink-muted,#57606a);border:1px solid var(--border,#e5e7eb);border-radius:4px;align-items:center;padding:1px 7px;font-size:.6875rem;font-weight:500;line-height:1.6;display:inline-flex}.learn-lesson-header{border-bottom:1px solid var(--border,#e5e7eb);margin-bottom:1.5rem;padding-bottom:1.25rem}.learn-lesson-title-large{letter-spacing:-.02em;margin:.5rem 0;font-size:1.625rem;font-weight:800;line-height:1.25}.learn-lesson-module{color:var(--ink-muted,#57606a);margin:0;font-size:.875rem}.learn-video-wrapper{background:#000;border-radius:8px;height:0;margin-bottom:1.75rem;padding-bottom:56.25%;position:relative;overflow:hidden}.learn-video-embed{border:none;border-radius:8px;width:100%;height:100%;position:absolute;top:0;left:0}.learn-mitocw-block{background:var(--surface,#f7f8fa);border:1px solid var(--border,#e5e7eb);border-radius:8px;flex-direction:column;align-items:flex-start;gap:.75rem;margin-bottom:1.75rem;padding:1.25rem;display:flex}.learn-mitocw-thumb{object-fit:cover;border-radius:6px;width:100%;max-width:480px;height:auto}.learn-mitocw-link{color:#fff;background:#7c3aed;border-radius:6px;padding:.5rem 1.25rem;font-size:.9375rem;font-weight:600;text-decoration:none;transition:background .15s;display:inline-block}.learn-mitocw-link:hover{background:#6d28d9}.learn-mitocw-note{color:var(--ink-muted,#57606a);margin:0;font-size:.8125rem}.learn-source-unavailable{color:#9a3412;background:#fff7ed;border:1px solid #fed7aa;border-radius:8px;margin-bottom:1.75rem;padding:1.25rem;font-size:.9375rem}.learn-source-unavailable a{color:#7c3aed;font-weight:600}.learn-lesson-meta-section{flex-direction:column;gap:1.5rem;margin:1.5rem 0;display:flex}.learn-topics-row{flex-wrap:wrap;gap:.5rem;display:flex}.learn-topic-tag{color:#5b21b6;background:#ede9fe;border-radius:999px;padding:2px 10px;font-size:.8125rem;font-weight:500;display:inline-block}.learn-lesson-section{border-top:1px solid var(--border,#e5e7eb);padding-top:1.25rem}.learn-section-heading{text-transform:uppercase;letter-spacing:.05em;color:var(--ink-muted,#57606a);margin:0 0 .75rem;font-size:.875rem;font-weight:700}.learn-objectives-list,.learn-takeaways-list{flex-direction:column;gap:.375rem;margin:0;padding:0 0 0 1.25rem;display:flex}.learn-objectives-list li,.learn-takeaways-list li{color:var(--ink,#1f2328);font-size:.9375rem;line-height:1.55}.learn-progress-tracker{background:var(--surface,#f7f8fa);border:1px solid var(--border,#e5e7eb);border-radius:8px;flex-direction:column;gap:.875rem;margin:2rem 0;padding:1.25rem;display:flex}.learn-progress-status-text{font-size:.9375rem;font-weight:600}.learn-progress-not-started{color:var(--ink-muted,#57606a)}.learn-progress-in-progress{color:#d97706}.learn-progress-completed{color:#059669}.learn-complete-btn{color:#fff;cursor:pointer;background:#7c3aed;border:none;border-radius:6px;align-self:flex-start;padding:.5rem 1.25rem;font-size:.9375rem;font-weight:600;transition:background .15s}.learn-complete-btn:hover:not(:disabled){background:#6d28d9}.learn-complete-btn:disabled{opacity:.6;cursor:default}.learn-login-prompt{background:#faf5ff;border:1px solid #ddd6fe;border-radius:8px;align-items:flex-start;gap:.75rem;padding:1rem 1.25rem;display:flex;position:relative}.learn-login-prompt-close{color:var(--ink-muted,#57606a);cursor:pointer;background:0 0;border:none;padding:0;font-size:1.25rem;line-height:1;position:absolute;top:.75rem;right:.75rem}.learn-login-prompt-body{flex-direction:column;gap:.375rem;display:flex}.learn-login-prompt-heading{color:#4c1d95;margin:0;font-size:.9375rem;font-weight:700}.learn-login-prompt-text{color:var(--ink-muted,#57606a);margin:0;font-size:.875rem;line-height:1.5}.learn-login-prompt-btn{color:#fff;background:#7c3aed;border-radius:6px;align-self:flex-start;margin-top:.375rem;padding:.4375rem 1rem;font-size:.875rem;font-weight:600;text-decoration:none;transition:background .15s;display:inline-block}.learn-login-prompt-btn:hover{background:#6d28d9}.learn-prevnext{border-top:1px solid var(--border,#e5e7eb);grid-template-columns:1fr 1fr;gap:1rem;margin-top:2.5rem;padding-top:1.5rem;display:grid}.learn-prevnext-prev,.learn-prevnext-next{display:flex}.learn-prevnext-next{text-align:right;justify-content:flex-end}.learn-prevnext a{flex-direction:column;gap:.25rem;max-width:280px;text-decoration:none;display:flex}.learn-prevnext-label{text-transform:uppercase;letter-spacing:.05em;color:var(--ink-muted,#57606a);font-size:.75rem;font-weight:700}.learn-prevnext-title{color:#7c3aed;font-size:.9375rem;font-weight:600;line-height:1.35}.learn-prevnext a:hover .learn-prevnext-title{text-decoration:underline}.learn-error-banner{color:#856404;background:#fff3cd;border:1px solid #ffc107;border-radius:8px;margin-bottom:1.5rem;padding:.875rem 1rem;font-size:.9375rem}.learn-empty-state{text-align:center;color:var(--ink-muted,#57606a);padding:3rem 0;font-size:.9375rem}.learn-footer{border-top:1px solid var(--border,#e5e7eb);text-align:center;color:var(--ink-muted,#57606a);padding:1.5rem 1.25rem;font-size:.875rem}.learn-dark{--lv2-bg:#0c0e1a;--lv2-surface:#131627;--lv2-surface-2:#1a1d33;--lv2-border:#7c3aed2e;--lv2-border-subtle:#ffffff12;--lv2-ink:#f0f0ff;--lv2-ink-muted:#9899bb;--lv2-ink-dim:#5c5e80;--lv2-violet:#7c3aed;--lv2-violet-bright:#a78bfa;--lv2-blue:#38bdf8;--lv2-mint:#34d399;--lv2-pink:#ec4899;--lv2-gold:#fbbf24;background:var(--lv2-bg);color:var(--lv2-ink)}.learn-dark .learn-container{background:var(--lv2-bg)}.learn-dark .learn-footer{border-top-color:var(--lv2-border-subtle);color:var(--lv2-ink-muted);background:var(--lv2-bg)}.learn-hero-v2{border-bottom:1px solid var(--lv2-border-subtle);margin-bottom:2.5rem;padding:3rem 0 2.5rem}.learn-hero-eyebrow{letter-spacing:.12em;text-transform:uppercase;color:var(--lv2-violet-bright);margin-bottom:.75rem;font-size:.75rem;font-weight:700}.learn-hero-title-v2{letter-spacing:-.025em;color:var(--lv2-ink);margin:0 0 .875rem;font-size:clamp(1.75rem,4vw,2.75rem);font-weight:800;line-height:1.15}.learn-hero-sub-v2{color:var(--lv2-ink-muted);max-width:540px;margin:0 0 1.5rem;font-size:1.0625rem;line-height:1.65}.learn-hero-cta{background:var(--lv2-violet);color:#fff;border-radius:8px;align-items:center;gap:.4rem;padding:.75rem 1.5rem;font-size:1rem;font-weight:700;text-decoration:none;transition:background .15s,transform .1s;display:inline-flex}.learn-hero-cta:hover{background:#6d28d9;transform:translateY(-1px)}@media (prefers-reduced-motion:reduce){.learn-hero-cta{transition:none}}.learn-continue-bar{background:var(--lv2-surface);border:1px solid var(--lv2-border);border-radius:10px;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:1rem;margin-bottom:2rem;padding:.875rem 1.25rem;display:flex}.learn-continue-left{flex-wrap:wrap;align-items:center;gap:.75rem;display:flex}.learn-continue-label{color:var(--lv2-ink-muted);font-size:.875rem}.learn-streak-badge{color:var(--lv2-gold);background:#fbbf241a;border:1px solid #fbbf2433;border-radius:20px;padding:.2rem .6rem;font-size:.8125rem;font-weight:700}.learn-continue-btn{color:var(--lv2-violet-bright);white-space:nowrap;font-size:.9375rem;font-weight:700;text-decoration:none}.learn-continue-btn:hover{color:#fff}.learn-daily-card{border:1px solid var(--lv2-border);background:linear-gradient(135deg,#7c3aed26 0%,#38bdf814 100%);border-radius:12px;margin-bottom:2.5rem;padding:1.5rem}.learn-daily-eyebrow{letter-spacing:.1em;text-transform:uppercase;color:var(--lv2-blue);align-items:center;gap:.5rem;margin-bottom:.75rem;font-size:.75rem;font-weight:700;display:flex}.learn-daily-dot{background:var(--lv2-blue);border-radius:50%;width:8px;height:8px;display:inline-block}.learn-daily-title{color:var(--lv2-ink);margin:0 0 .625rem;font-size:1.25rem;font-weight:700}.learn-daily-hook{color:var(--lv2-ink-muted);margin:0 0 1rem;font-size:.9375rem;line-height:1.6}.learn-daily-footer{align-items:center;gap:1rem;display:flex}.learn-daily-time{color:var(--lv2-ink-dim);font-size:.8125rem}.learn-daily-cta{color:var(--lv2-blue);font-size:.9375rem;font-weight:700;text-decoration:none}.learn-daily-cta:hover{color:#fff}.learn-daily-done{color:var(--lv2-mint);font-size:.875rem;font-weight:600}.learn-section-title-v2{color:var(--lv2-ink-muted);text-transform:uppercase;letter-spacing:.08em;margin:0 0 1.25rem;font-size:1.125rem;font-weight:700}.learn-paths-section{margin-bottom:3rem}.learn-paths-grid{grid-template-columns:1fr;gap:.875rem;display:grid}@media (min-width:600px){.learn-paths-grid{grid-template-columns:repeat(2,1fr)}}.learn-path-card{background:var(--lv2-surface);border:1px solid var(--lv2-border-subtle);color:inherit;border-radius:12px;align-items:flex-start;gap:1rem;padding:1.25rem;text-decoration:none;transition:border-color .15s,background .15s;display:flex}.learn-path-card:hover{border-color:var(--lv2-border);background:var(--lv2-surface-2)}.learn-path-card-primary{background:linear-gradient(135deg, #7c3aed1f 0%, var(--lv2-surface) 100%);border-color:#7c3aed66;grid-column:1/-1}.learn-path-card-primary:hover{border-color:var(--lv2-violet)}.learn-path-icon{flex-shrink:0;font-size:1.75rem;line-height:1}.learn-path-body{flex:1;min-width:0}.learn-path-title{color:var(--lv2-ink);margin:0 0 .25rem;font-size:1.0625rem;font-weight:700}.learn-path-tagline{color:var(--lv2-violet-bright);margin:0 0 .375rem;font-size:.9375rem;font-weight:500}.learn-path-audience{color:var(--lv2-ink-muted);margin:0 0 .625rem;font-size:.8125rem}.learn-path-meta{color:var(--lv2-ink-dim);flex-wrap:wrap;align-items:center;gap:.625rem;font-size:.8125rem;display:flex}.learn-path-core-badge{color:var(--lv2-violet-bright);background:#7c3aed26;border-radius:20px;padding:.125rem .5rem;font-size:.75rem;font-weight:600}.learn-path-arrow{color:var(--lv2-ink-dim);flex-shrink:0;margin-left:auto;font-size:1.125rem;transition:color .15s}.learn-path-card:hover .learn-path-arrow{color:var(--lv2-violet-bright)}.learn-library-cta{border-top:1px solid var(--lv2-border-subtle);flex-wrap:wrap;align-items:center;gap:1.5rem;padding:1.25rem 0;display:flex}.learn-library-link{color:var(--lv2-ink-muted);align-items:center;gap:.5rem;font-size:.9375rem;font-weight:600;text-decoration:none;display:flex}.learn-library-link:hover{color:var(--lv2-ink)}.learn-library-link-arrow{color:var(--lv2-violet-bright)}.learn-glossary-link{color:var(--lv2-ink-muted);font-size:.9375rem;text-decoration:none}.learn-glossary-link:hover{color:var(--lv2-ink)}.learn-path-header{border-bottom:1px solid var(--lv2-border-subtle);margin-bottom:2rem;padding-bottom:1.5rem}.learn-path-header-title{letter-spacing:-.02em;color:var(--lv2-ink);margin:0 0 .625rem;font-size:clamp(1.5rem,3vw,2.25rem);font-weight:800}.learn-path-header-desc{color:var(--lv2-ink-muted);max-width:600px;margin:0 0 1rem;font-size:1rem;line-height:1.65}.learn-path-header-meta{color:var(--lv2-ink-dim);flex-wrap:wrap;align-items:center;gap:.875rem;font-size:.875rem;display:flex}.learn-path-audience-badge{color:var(--lv2-blue);background:#38bdf81a;border-radius:20px;padding:.2rem .75rem;font-size:.8125rem;font-weight:600}.learn-path-progress{margin-bottom:2rem}.learn-path-progress-bar{background:var(--lv2-surface-2);border-radius:3px;height:6px;margin-bottom:.5rem;overflow:hidden}.learn-path-progress-fill{background:var(--lv2-mint);border-radius:3px;height:100%;transition:width .4s}@media (prefers-reduced-motion:reduce){.learn-path-progress-fill{transition:none}}.learn-path-progress-label{color:var(--lv2-ink-dim);font-size:.8125rem}.learn-path-progress-done{color:var(--lv2-mint)}.learn-path-sections{margin-bottom:3rem}.learn-path-section{margin-bottom:2.5rem}.learn-path-section-heading{letter-spacing:.1em;text-transform:uppercase;color:var(--lv2-ink-muted);border-bottom:1px solid var(--lv2-border-subtle);margin:0 0 1rem;padding-bottom:.5rem;font-size:.8125rem;font-weight:700}.learn-lesson-list-v2{flex-direction:column;gap:0;margin:0;padding:0;list-style:none;display:flex}.learn-lesson-row{border-bottom:1px solid var(--lv2-border-subtle);align-items:flex-start;gap:1rem;padding:1rem 0;display:flex}.learn-lesson-row:last-child{border-bottom:none}.learn-lesson-row-unavailable{opacity:.45}.learn-lesson-num{color:var(--lv2-ink-dim);font-variant-numeric:tabular-nums;flex-shrink:0;min-width:1.75rem;padding-top:.125rem;font-size:.875rem;font-weight:700}.learn-lesson-row-body{flex-direction:column;flex:1;gap:.375rem;min-width:0;display:flex}.learn-lesson-row-badges{flex-wrap:wrap;align-items:center;gap:.375rem;display:flex}.learn-lesson-row-title{color:var(--lv2-ink);font-size:1rem;font-weight:600;line-height:1.4;text-decoration:none}.learn-lesson-row-title:hover{color:var(--lv2-violet-bright)}.learn-lesson-row-unavailable-title{color:var(--lv2-ink-dim);cursor:default}.learn-lesson-row-hook{color:var(--lv2-ink-muted);margin:0;font-size:.875rem;line-height:1.55}.learn-start-badge{background:var(--lv2-violet);color:#fff;border-radius:20px;flex-shrink:0;align-self:center;padding:.25rem .75rem;font-size:.75rem;font-weight:700;text-decoration:none}.learn-start-badge:hover{background:#6d28d9}.learn-duration-badge{color:var(--lv2-ink-dim);background:#ffffff0f;border-radius:4px;padding:.15rem .5rem;font-size:.75rem;font-weight:600}.learn-provider-badge{color:var(--lv2-blue);background:#38bdf814;border-radius:4px;padding:.15rem .5rem;font-size:.75rem}.learn-lesson-page-v2{max-width:760px}.learn-lesson-header-v2{margin-bottom:1.75rem}.learn-lesson-title-v2{letter-spacing:-.02em;color:var(--lv2-ink);margin:.5rem 0 0;font-size:clamp(1.375rem,3vw,2rem);font-weight:800;line-height:1.25}.learn-lesson-hook{color:var(--lv2-ink-muted);margin:.75rem 0 0;font-size:1.0625rem;line-height:1.65}.learn-before-watch{background:#38bdf812;border:1px solid #38bdf82e;border-radius:10px;margin-bottom:1.5rem;padding:1rem 1.25rem}.learn-before-watch-label{letter-spacing:.1em;text-transform:uppercase;color:var(--lv2-blue);margin-bottom:.5rem;font-size:.75rem;font-weight:700}.learn-before-watch-text{color:var(--lv2-ink-muted);margin:0;font-size:.9375rem;line-height:1.65}.learn-video-wrapper-v2{aspect-ratio:16/9;background:#000;border-radius:10px;width:100%;margin-bottom:2rem;position:relative;overflow:hidden}.learn-video-wrapper-v2 iframe{border:none;width:100%;height:100%;position:absolute;inset:0}.learn-mitocw-block-v2{background:var(--lv2-surface);border:1px solid var(--lv2-border-subtle);border-radius:10px;flex-direction:column;align-items:flex-start;gap:.875rem;margin-bottom:2rem;padding:1.5rem;display:flex}.learn-mitocw-link-v2{color:var(--lv2-blue);font-size:1rem;font-weight:700;text-decoration:none}.learn-mitocw-link-v2:hover{color:#fff}.learn-section-heading-v2{color:var(--lv2-ink-muted);text-transform:uppercase;letter-spacing:.07em;margin:0 0 .875rem;font-size:1rem;font-weight:700}.learn-explainer-section,.learn-takeaways-section,.learn-why-section{margin-bottom:2rem}.learn-explainer-body{color:var(--lv2-ink);font-size:1rem;line-height:1.75}.learn-explainer-body p{margin:0 0 1rem}.learn-takeaways-v2{flex-direction:column;gap:.625rem;margin:0;padding:0;list-style:none;display:flex}.learn-takeaways-v2 li{color:var(--lv2-ink);background:var(--lv2-surface);border-left:3px solid var(--lv2-mint);border-radius:0 8px 8px 0;gap:.75rem;padding:.75rem 1rem;font-size:.9375rem;line-height:1.6;display:flex}.learn-takeaways-v2 li:before{content:"✓";color:var(--lv2-mint);flex-shrink:0;font-weight:700}.learn-why-text{color:var(--lv2-ink-muted);margin:0;font-size:.9375rem;line-height:1.7}.learn-misconception{color:var(--lv2-ink);background:#ec489912;border:1px solid #ec489933;border-radius:10px;margin-bottom:2rem;padding:1rem 1.25rem;font-size:.9375rem;line-height:1.65}.learn-misconception-label{letter-spacing:.1em;text-transform:uppercase;color:var(--lv2-pink);margin-bottom:.5rem;font-size:.75rem;font-weight:700}.learn-question-section{margin-bottom:2rem}.learn-question-card{background:var(--lv2-surface);border:1px solid var(--lv2-border);border-radius:12px;padding:1.5rem}.learn-question-text{color:var(--lv2-ink);margin:0 0 1rem;font-size:1rem;font-weight:600;line-height:1.6}.learn-question-options{flex-direction:column;gap:.5rem;margin-bottom:1rem;display:flex}.learn-question-option{text-align:left;background:var(--lv2-surface-2);border:1px solid var(--lv2-border-subtle);width:100%;color:var(--lv2-ink);cursor:pointer;border-radius:8px;padding:.75rem 1rem;font-size:.9375rem;transition:border-color .12s,background .12s;display:block}.learn-question-option:hover:not(:disabled){border-color:var(--lv2-violet);background:#7c3aed14}.learn-question-option-selected{border-color:var(--lv2-violet);background:#7c3aed1f}.learn-question-option-correct{border-color:var(--lv2-mint)!important;color:var(--lv2-mint)!important;background:#34d3991a!important}.learn-question-option-wrong{border-color:var(--lv2-pink)!important;color:var(--lv2-pink)!important;background:#ec489914!important}.learn-question-submit{background:var(--lv2-violet);color:#fff;cursor:pointer;border:none;border-radius:8px;padding:.625rem 1.25rem;font-size:.9375rem;font-weight:700;transition:background .15s}.learn-question-submit:hover:not(:disabled){background:#6d28d9}.learn-question-submit:disabled{opacity:.4;cursor:default}.learn-question-result{border-radius:8px;margin-top:1rem;padding:1rem;font-size:.9375rem}.learn-question-result-correct{background:#34d3991a;border:1px solid #34d39940}.learn-question-result-wrong{background:#ec489914;border:1px solid #ec489933}.learn-question-result-verdict{color:var(--lv2-ink);margin-bottom:.375rem;font-weight:700}.learn-question-result-explanation{color:var(--lv2-ink-muted);margin:0;line-height:1.6}.learn-sources-section,.learn-related-section{margin-bottom:2rem}.learn-sources-list{flex-direction:column;gap:.5rem;margin:0;padding:0;list-style:none;display:flex}.learn-sources-list a{color:var(--lv2-blue);font-size:.9375rem}.learn-source-date{color:var(--lv2-ink-dim);font-size:.8125rem}.learn-related-grid{grid-template-columns:repeat(2,1fr);gap:.625rem;display:grid}@media (max-width:500px){.learn-related-grid{grid-template-columns:1fr}}.learn-related-card{background:var(--lv2-surface);border:1px solid var(--lv2-border-subtle);color:var(--lv2-ink-muted);border-radius:8px;padding:.75rem 1rem;font-size:.875rem;line-height:1.4;text-decoration:none;transition:border-color .12s,color .12s}.learn-related-card:hover{border-color:var(--lv2-border);color:var(--lv2-ink)}.learn-prevnext-v2{border-top:1px solid var(--lv2-border-subtle);grid-template-columns:1fr 1fr;gap:1rem;margin:2.5rem 0 1.5rem;padding-top:1.5rem;display:grid}@media (max-width:500px){.learn-prevnext-v2{grid-template-columns:1fr}}.learn-prevnext-prev,.learn-prevnext-next{flex-direction:column;gap:.25rem;display:flex}.learn-prevnext-next{text-align:right}.learn-prevnext-v2 a{flex-direction:column;gap:.25rem;text-decoration:none;display:flex}.learn-next-btn{align-items:flex-end}.learn-prevnext-v2 .learn-prevnext-label{color:var(--lv2-ink-dim);letter-spacing:.04em;font-size:.75rem;font-weight:600}.learn-prevnext-v2 .learn-prevnext-title{color:var(--lv2-ink-muted);font-size:.9375rem;font-weight:600;line-height:1.4;transition:color .12s}.learn-prevnext-v2 a:hover .learn-prevnext-title{color:var(--lv2-violet-bright)}.learn-report-issue{text-align:center;padding:1rem 0 2rem}.learn-report-issue a{color:var(--lv2-ink-dim);font-size:.8125rem;text-decoration:none}.learn-report-issue a:hover{color:var(--lv2-ink-muted)}.learn-library-header{border-bottom:1px solid var(--lv2-border-subtle);margin-bottom:2rem;padding-bottom:1.25rem}.learn-page-title{letter-spacing:-.02em;color:var(--lv2-ink);margin:0 0 .375rem;font-size:clamp(1.5rem,3vw,2.25rem);font-weight:800}.learn-page-subtitle{color:var(--lv2-ink-muted);margin:0;font-size:.9375rem}.learn-library-body{margin-bottom:3rem}.learn-lib-filters{flex-wrap:wrap;align-items:center;gap:.625rem;margin-bottom:1rem;display:flex}.learn-lib-search{background:var(--lv2-surface);border:1px solid var(--lv2-border-subtle);min-width:180px;color:var(--lv2-ink);border-radius:8px;outline:none;flex:1;padding:.5rem .875rem;font-size:.9375rem}.learn-lib-search::placeholder{color:var(--lv2-ink-dim)}.learn-lib-search:focus{border-color:var(--lv2-violet)}.learn-lib-select{background:var(--lv2-surface);border:1px solid var(--lv2-border-subtle);color:var(--lv2-ink);cursor:pointer;border-radius:8px;outline:none;padding:.5rem .75rem;font-size:.875rem}.learn-lib-select:focus{border-color:var(--lv2-violet)}.learn-lib-clear{border:1px solid var(--lv2-border-subtle);color:var(--lv2-ink-muted);cursor:pointer;background:0 0;border-radius:8px;padding:.5rem .75rem;font-size:.875rem}.learn-lib-clear:hover{color:var(--lv2-ink)}.learn-lib-count{color:var(--lv2-ink-dim);margin:0 0 1rem;font-size:.8125rem}.learn-lib-section{margin-bottom:2.5rem}.learn-lib-section-advanced{border-top:1px solid #ec489933;padding-top:1.5rem}.learn-lib-section-heading{text-transform:uppercase;letter-spacing:.08em;color:var(--lv2-ink-muted);margin:0 0 1rem;font-size:.875rem;font-weight:700}.learn-lib-advanced-note{color:var(--lv2-pink);text-transform:none;letter-spacing:0;font-size:.75rem;font-weight:400}.learn-lib-list{flex-direction:column;margin:0;padding:0;list-style:none;display:flex}.learn-lib-item{border-bottom:1px solid var(--lv2-border-subtle);flex-direction:column;gap:.375rem;padding:.875rem 0;display:flex}.learn-lib-item:last-child{border-bottom:none}.learn-lib-item-badges{flex-wrap:wrap;align-items:center;gap:.375rem;display:flex}.learn-lib-title{color:var(--lv2-ink);font-size:.9375rem;font-weight:600;text-decoration:none}.learn-lib-title:hover{color:var(--lv2-violet-bright)}.learn-lib-hook{color:var(--lv2-ink-muted);margin:0;font-size:.8125rem;line-height:1.55}.learn-glossary-section{margin-bottom:3rem}.learn-glossary-category{text-transform:uppercase;letter-spacing:.1em;color:var(--lv2-violet-bright);border-bottom:1px solid var(--lv2-border);margin:0 0 1.25rem;padding-bottom:.5rem;font-size:.8125rem;font-weight:700}.learn-glossary-list{flex-direction:column;gap:0;display:flex}.learn-glossary-term{border-bottom:1px solid var(--lv2-border-subtle);padding:1.25rem 0}.learn-glossary-term:last-child{border-bottom:none}.learn-glossary-term-name{color:var(--lv2-ink);margin:0 0 .375rem;font-size:1.0625rem;font-weight:700}.learn-glossary-term-def{color:var(--lv2-ink-muted);margin:0 0 .5rem;font-size:.9375rem;line-height:1.65}.learn-glossary-term-ext{color:var(--lv2-ink-dim);margin:0 0 .625rem;font-size:.875rem;line-height:1.65}.learn-glossary-term-lessons{flex-wrap:wrap;gap:.5rem;margin:0;display:flex}.learn-glossary-lesson-link{color:var(--lv2-blue);background:#38bdf814;border-radius:20px;padding:.2rem .625rem;font-size:.8125rem;text-decoration:none}.learn-glossary-lesson-link:hover{color:#fff}.learn-dark .learn-breadcrumb{color:var(--lv2-ink-dim)}.learn-dark .learn-breadcrumb a{color:var(--lv2-ink-muted)}.learn-dark .learn-breadcrumb a:hover{color:var(--lv2-ink)}.learn-dark .learn-tier-badge{border-color:#0000}.learn-dark .learn-tier-core{color:var(--lv2-violet-bright);background:#7c3aed2e}.learn-dark .learn-tier-recommended{color:var(--lv2-blue);background:#38bdf81f}.learn-dark .learn-tier-deep-dive{color:var(--lv2-pink);background:#ec48991a}.learn-dark .learn-tier-professional-deep-dive{color:var(--lv2-gold);background:#fbbf241a}.learn-dark .learn-level-badge{color:var(--lv2-ink-dim);background:#ffffff0f;border-color:#0000}.learn-dark .learn-source-unavailable{color:var(--lv2-ink-muted);background:#ec489912;border-color:#ec489933}.learn-dark .learn-error-banner{color:var(--lv2-pink);background:#ec489912;border-color:#ec489933}.learn-dark .learn-empty-state{color:var(--lv2-ink-dim)}.learn-dark .learn-progress-tracker{background:var(--lv2-surface);border-color:var(--lv2-border-subtle)}.learn-dark .learn-progress-completed{color:var(--lv2-mint)}.learn-dark .learn-progress-in-progress{color:var(--lv2-blue)}.learn-dark .learn-progress-not-started{color:var(--lv2-ink-dim)}.learn-dark .learn-complete-btn{background:var(--lv2-violet);color:#fff}.learn-dark .learn-complete-btn:hover:not(:disabled){background:#6d28d9}@media (max-width:640px){.learn-lesson-page-v2 .learn-prevnext-v2{background:var(--lv2-bg);border-top:1px solid var(--lv2-border-subtle);z-index:10;margin:0 -1.25rem;padding:1rem;position:sticky;bottom:0}}.learn-source-card{background:var(--learn-surface,#13152a);border:1px solid var(--learn-border,#1e2340);border-radius:10px;margin:1.5rem 0;overflow:hidden}.learn-source-card-thumb{object-fit:cover;background:#0c0e1a;width:100%;height:auto;max-height:280px;display:block}.learn-source-card-body{padding:1.25rem 1.5rem 1.5rem}.learn-source-card-attribution{color:var(--learn-muted,#8892a8);text-transform:uppercase;letter-spacing:.04em;margin:0 0 .75rem;font-size:.8rem}.learn-source-card-link{background:var(--learn-violet,#7c3aed);color:#fff;border-radius:6px;padding:.7rem 1.4rem;font-size:.95rem;font-weight:600;text-decoration:none;transition:background .15s;display:inline-block}.learn-source-card-link:hover{background:#6d28d9}.learn-source-action{margin-top:.6rem;font-size:.85rem}.learn-source-action a{color:var(--learn-blue,#38bdf8);text-decoration:none}.learn-source-action a:hover{text-decoration:underline}.learn-video-lazy{aspect-ratio:16/9;cursor:pointer;background:#0c0e1a;border-radius:10px;margin:1.5rem 0 0;position:relative;overflow:hidden}.learn-video-lazy-thumb{object-fit:cover;opacity:.7;width:100%;height:100%;transition:opacity .2s;display:block}.learn-video-lazy:hover .learn-video-lazy-thumb{opacity:.85}.learn-video-lazy-overlay{flex-direction:column;justify-content:center;align-items:center;gap:.75rem;display:flex;position:absolute;inset:0}.learn-video-play-btn{color:#fff;cursor:pointer;background:#7c3aedeb;border:none;border-radius:50%;justify-content:center;align-items:center;width:68px;height:68px;font-size:1.6rem;transition:transform .15s,background .15s;display:flex;box-shadow:0 4px 24px #00000080}.learn-video-play-btn:hover{background:#6d28d9;transform:scale(1.08)}.learn-video-watch-link{color:#ffffffbf;font-size:.8rem;text-decoration:none}.learn-video-watch-link:hover{color:#fff;text-decoration:underline}.learn-lesson-glossary-section{margin:1.75rem 0}.learn-lesson-glossary-tags{flex-wrap:wrap;gap:.5rem;margin-top:.6rem;display:flex}.learn-glossary-tag{color:var(--learn-blue,#38bdf8);background:#38bdf81a;border:1px solid #38bdf840;border-radius:999px;padding:.3rem .75rem;font-size:.8rem;text-decoration:none;transition:background .15s;display:inline-block}.learn-glossary-tag:hover{background:#38bdf833}.learn-module-card{background:var(--learn-surface,#0f172a);border:1px solid var(--learn-border,#1e293b);border-radius:10px;flex-direction:column;gap:.5rem;margin-bottom:1rem;padding:1.25rem 1.5rem;transition:border-color .15s;display:flex}.learn-module-card:hover{border-color:var(--learn-purple,#7c3aed)}.learn-module-card-header{justify-content:space-between;align-items:baseline;gap:1rem;display:flex}.learn-module-card-title{color:var(--learn-ink,#f1f5f9);margin:0;font-size:1rem;font-weight:600;line-height:1.4}.learn-module-card-count{color:var(--learn-muted,#94a3b8);white-space:nowrap;flex-shrink:0;font-size:.8rem}.learn-module-card-preview{color:var(--learn-muted,#94a3b8);text-overflow:ellipsis;white-space:nowrap;margin:0;font-size:.8125rem;line-height:1.5;overflow:hidden}.learn-module-card-cta{color:var(--learn-purple-light,#a78bfa);letter-spacing:.01em;margin-top:.25rem;font-size:.8125rem;font-weight:600;text-decoration:none;display:inline-block}.learn-module-card-cta:hover{color:#fff}.learn-path-prereq-hint{color:var(--learn-muted,#94a3b8);background:#94a3b814;border:1px solid #94a3b833;border-radius:999px;padding:.15rem .55rem;font-size:.75rem}