@import url(https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap);.top-nav{background:var(--color-bg);border-bottom:1px solid var(--color-border);position:-webkit-sticky;position:sticky;top:0;z-index:100}.main{flex:1 1}.landing-page{background:var(--color-bg);color:var(--color-text);min-height:100vh}.landing-nav-content{align-items:center;display:flex;justify-content:space-between;padding:16px 0}.landing-nav-brand{align-items:center;display:flex;gap:12px}.landing-logo-icon{background:linear-gradient(135deg,var(--color-accent),#7c3aed);border-radius:var(--radius);height:32px;transform:rotate(12deg);width:32px}.landing-brand-name{font-size:20px;font-weight:700}.landing-nav-links{display:none;gap:32px}@media (min-width:768px){.landing-nav-links{display:flex}}.landing-nav-link{color:var(--color-muted);font-weight:500;text-decoration:none;transition:color .2s ease}.landing-nav-link:hover{color:var(--color-text)}.landing-hero{border-bottom:1px solid var(--color-border);overflow:hidden;padding:96px 0 128px;position:relative}.landing-hero-media{background-image:url(/static/media/hero.151566c613e61094f746.jpg);background-position:50%;background-size:cover;inset:0;opacity:1;position:absolute;z-index:0}.landing-hero-overlay{background:linear-gradient(180deg,#00000073,#000000a6 60%,#000000bf),radial-gradient(1200px 600px at 50% 30%,#00000040 0,#0000 60%);inset:0;position:absolute;z-index:1}.landing-hero.is-dark .landing-hero-title{-webkit-text-fill-color:inherit;background:none;color:#fff;text-shadow:0 1px 2px #00000059}.landing-hero.is-dark .landing-hero-subtitle{color:#ffffffe6}.landing-hero.is-dark .landing-btn-secondary:hover{background:#ffffff1a;border-color:#fff;box-shadow:0 8px 25px #00000059,0 8px 25px #ffffff26;transform:translateY(-1px)}.landing-hero.is-dark .landing-btn-primary:hover{box-shadow:0 8px 25px #00000059,0 8px 25px #8b5cf647}.landing-hero-bg{background:linear-gradient(180deg,#fff0 0,var(--color-bg) 80%),radial-gradient(1200px 600px at 10% 10%,#7c3aed1a 0,#0000 60%),radial-gradient(1200px 600px at 90% 0,#8b5cf61a 0,#0000 60%);inset:0;position:absolute;z-index:1}.landing-hero-content{margin:0 auto;max-width:820px;position:relative;text-align:center;z-index:2}.landing-hero-title{-webkit-text-fill-color:#0000;background:linear-gradient(135deg,var(--color-accent),#7c3aed);background-clip:text;-webkit-background-clip:text;font-size:clamp(36px,6vw,64px);font-weight:800;line-height:1.1;margin-bottom:24px}.landing-hero-subtitle{color:var(--color-muted);font-size:clamp(18px,2.5vw,24px);line-height:1.5;margin-bottom:40px;margin-left:auto;margin-right:auto;max-width:620px}.landing-hero-actions{align-items:center;display:flex;flex-direction:column;gap:16px}@media (min-width:640px){.landing-hero-actions{flex-direction:row;justify-content:center}}.landing-btn-primary{align-items:center;background:linear-gradient(135deg,var(--color-accent),#7c3aed);border-color:var(--color-accent);border:1px solid var(--color-accent);border-radius:var(--radius);color:#fff;cursor:pointer;display:inline-flex;font-size:16px;font-weight:600;justify-content:center;padding:16px 32px;text-decoration:none;transition:transform .2s ease,box-shadow .2s ease}.landing-btn-primary:hover{box-shadow:0 8px 25px #8b5cf64d;transform:translateY(-1px)}.landing-btn-secondary{align-items:center;background:linear-gradient(135deg,var(--color-accent),#7c3aed);border-color:var(--color-accent);border:1px solid var(--color-accent);border-radius:var(--radius);color:#fff;cursor:pointer;display:inline-flex;font-size:16px;font-weight:600;justify-content:center;padding:16px 32px;text-decoration:none;transition:transform .2s ease,box-shadow .2s ease}.landing-btn-secondary:hover{box-shadow:0 8px 25px #8b5cf64d;transform:translateY(-1px)}.landing-btn-large{font-size:18px;padding:20px 40px}.landing-section{padding:80px 0}.landing-section-alt{background:var(--color-surface)}.landing-section-title{font-size:clamp(28px,4vw,40px);font-weight:700;line-height:1.2;margin-bottom:48px;text-align:center}.landing-learning-grid{grid-gap:28px;display:grid;gap:28px;grid-template-columns:1fr}@media (min-width:768px){.landing-learning-grid{grid-template-columns:repeat(2,1fr)}}@media (min-width:1024px){.landing-learning-grid{grid-template-columns:repeat(3,1fr)}}.landing-learning-item{align-items:flex-start;background:var(--color-bg);border:1px solid var(--color-border);border-radius:var(--radius);display:flex;gap:16px;padding:16px}.landing-learning-icon{color:var(--color-accent);flex-shrink:0;margin-top:2px}.landing-learning-title{font-size:18px;font-weight:600;margin-bottom:6px}.landing-learning-description{color:var(--color-muted);line-height:1.55}.landing-workflow-grid{grid-gap:36px;display:grid;gap:36px;grid-template-columns:1fr}@media (min-width:768px){.landing-workflow-grid{grid-template-columns:repeat(3,1fr)}}.landing-workflow-step{background:var(--color-bg);border:1px solid var(--color-border);border-radius:var(--radius);padding:16px;text-align:center}.landing-workflow-icon-wrapper{background:linear-gradient(135deg,var(--color-accent),#7c3aed);border-radius:50%;display:grid;height:64px;margin:0 auto 18px;place-items:center;width:64px}.landing-workflow-icon{color:#fff}.landing-workflow-title{font-size:20px;font-weight:600;margin-bottom:10px}.landing-workflow-description{color:var(--color-muted);line-height:1.6}.landing-curriculum-accordion{margin:0 auto;max-width:820px}.landing-accordion-item{background:var(--color-bg);border:1px solid var(--color-border);border-radius:var(--radius);margin-bottom:10px;overflow:hidden}.landing-accordion-header{align-items:center;background:var(--color-surface);border:none;color:var(--color-text);cursor:pointer;display:flex;font-size:16px;font-weight:600;justify-content:space-between;padding:20px 24px;transition:background-color .2s ease;width:100%}.landing-accordion-header:hover{background:#8b5cf60d}.landing-accordion-title{flex:1 1;text-align:left}.landing-accordion-content{background:var(--color-bg);padding:0 24px 20px}.landing-lesson-list{list-style:none;margin:0 0 14px;padding:0}.landing-lesson-item{border-bottom:1px solid var(--color-border);color:var(--color-muted);padding:10px 0}.landing-lesson-item:last-child{border-bottom:none}.landing-view-syllabus{align-items:center;color:var(--color-accent);display:inline-flex;font-weight:500;gap:4px;text-decoration:none;transition:opacity .2s ease}.landing-view-syllabus:hover{opacity:.85}.landing-credibility-intro{color:var(--color-muted);font-size:14px;letter-spacing:.5px;margin-bottom:20px;text-align:center;text-transform:uppercase}.landing-credibility-logos{align-items:center;display:flex;flex-wrap:wrap;gap:28px;justify-content:center}.landing-credibility-logo{color:var(--color-muted);font-size:14px;font-weight:500;opacity:.75;transition:opacity .2s ease}.landing-credibility-logo:hover{opacity:1}.landing-faq-list{margin:0 auto;max-width:820px}.landing-faq-item{border-bottom:1px solid var(--color-border)}.landing-faq-question{align-items:center;background:none;border:none;color:var(--color-text);cursor:pointer;display:flex;font-size:16px;font-weight:600;justify-content:space-between;padding:20px 0;text-align:left;width:100%}.landing-faq-question:hover{color:var(--color-accent)}.landing-faq-answer{padding:0 0 18px}.landing-faq-answer p{color:var(--color-muted);line-height:1.6;margin:0}.landing-section-cta{background:var(--color-surface);border-bottom:1px solid var(--color-border);border-top:1px solid var(--color-border)}.landing-cta-content{margin:0 auto;max-width:620px;text-align:center}.landing-cta-title{font-size:clamp(24px,4vw,32px);font-weight:700;margin-bottom:28px}.landing-cta-features{display:flex;flex-direction:column;gap:12px;margin-bottom:36px}@media (min-width:768px){.landing-cta-features{flex-direction:row;gap:28px;justify-content:center}}.landing-cta-feature{color:var(--color-muted);font-size:14px}.landing-cta-feature strong{color:var(--color-text)}@media (max-width:767px){.landing-section{padding:56px 0}.landing-hero{padding:72px 0 96px}.landing-workflow-grid{gap:28px}.landing-learning-grid{gap:22px}}.auth-page{background-color:#f8fafc;display:flex;flex-direction:column;min-height:100vh}.auth-container{align-items:center;display:flex;flex:1 1;justify-content:center;padding:2rem}.auth-card{background-color:#fff;border-radius:16px;box-shadow:0 10px 25px #0000001a;max-width:400px;padding:3rem;width:100%}.auth-header{margin-bottom:2rem;text-align:center}.auth-header h2{color:#1a1a1a;font-size:2rem;font-weight:700;margin-bottom:.5rem}.auth-header p{color:#6b7280;font-size:1rem}.auth-form{display:flex;flex-direction:column;gap:1rem;margin-bottom:2rem}.auth-form input{border:1px solid #e5e7eb;border-radius:8px;font-size:1rem;padding:1rem;transition:border-color .2s ease}.auth-form input:focus{border-color:#000;outline:none}.auth-button{background-color:#000;border:none;border-radius:8px;color:#fff;cursor:pointer;font-size:1rem;font-weight:600;margin-top:1rem;padding:1rem;transition:all .2s ease}.auth-button:hover{background-color:#333}.auth-switch{text-align:center}.auth-switch p{color:#6b7280;font-size:.9rem}.auth-switch span{color:#000;cursor:pointer;font-weight:600;text-decoration:underline}.auth-switch span:hover{color:#333}.dashboard{color:var(--color-text);min-height:100vh}.dashboard-content.container{margin-inline:auto;width:min(var(--container-w),100% - (var(--gutter) * 2))}.card{box-shadow:var(--shadow-1)}.dashboard-header{margin-top:16px;padding:24px}.welcome-title{font-size:clamp(22px,2.8vw,28px);font-weight:700;line-height:1.2}.welcome-subtitle{font-size:1rem;margin:0}.progress-overview{display:grid;justify-items:center}.overall-note{color:var(--color-muted);font-size:.95rem;font-weight:500;margin-top:8px}.dashboard-stats{margin-top:24px}.stats-grid{grid-gap:16px;display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}.stat-card{align-items:center;display:flex;gap:12px;padding:16px;transition:background .2s ease,border-color .2s ease}.stat-card:hover{background:#f0f9ff;border-color:#e0e7ff}.stat-icon{background:var(--color-accent);border-radius:var(--radius);color:#000;display:grid;flex-shrink:0;height:44px;place-items:center;width:44px}.stat-value{color:var(--color-text);font-size:1.5rem;margin:0 0 2px}.stat-label{color:var(--color-muted);font-size:.92rem;font-weight:500;margin:0}.dashboard-main{margin-bottom:48px;margin-top:24px}.sections-stack{grid-gap:24px;display:grid;gap:24px}.section-card{background:var(--color-bg);border:1px solid var(--color-border);border-radius:var(--radius);padding:20px}.section-header{padding-bottom:12px}.section-title{font-weight:600;margin:0 0 4px}.section-subtitle{margin:0}.continue-card{background:var(--color-surface);border:1px solid var(--color-border)}.next-lesson{align-items:center;background:#0000;border:none;cursor:pointer;display:flex;gap:24px;justify-content:space-between;text-align:left;transition:background .2s ease,transform .2s ease;width:100%}.lesson-title{font-weight:600}.lesson-desc{color:var(--color-muted);line-height:1.5;margin:0 0 10px}.lesson-meta{gap:10px 16px}.lesson-pill{align-items:center;color:var(--color-muted);display:inline-flex;font-size:.9rem;font-weight:500;gap:6px}.continue-btn{padding:10px 16px}.units-list{border:1px solid var(--color-border);display:flex;flex-direction:column}.unit-item{grid-gap:16px;align-items:center;background:var(--color-bg);border:none;cursor:pointer;display:grid;gap:16px;grid-template-columns:auto 1fr auto;padding:16px 20px;text-align:left;transition:background .2s ease,padding .2s ease;width:100%}.unit-item:last-child{border-bottom:none}.unit-number{background:var(--color-accent);color:#000;display:grid;font-weight:700;height:36px;place-items:center;width:36px}.unit-content{grid-gap:16px;align-items:center;display:grid;gap:16px;grid-template-columns:1fr auto}.unit-title{font-weight:600;margin:0}.unit-meta{display:flex;font-size:.9rem;font-weight:500;gap:16px;margin-top:10px}.unit-progress{min-width:180px}.progress-bar{background-color:var(--color-border);height:6px;margin-top:6px;width:100%}.progress-fill{background:var(--color-accent);transition:width .3s ease}.unit-status{display:grid;place-items:center;width:24px}.status-completed{color:#10b981;font-weight:700}.status-pending{color:var(--color-accent);font-weight:700}.quick-actions{grid-gap:12px;display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}.action-button{align-items:center;color:var(--color-muted);cursor:pointer;display:flex;font-weight:600;gap:10px;padding:14px 16px;text-align:left;transition:background .2s ease,color .2s ease,border-color .2s ease}.action-button:hover{color:var(--color-text)}@media (max-width:900px){.header-grid{grid-template-columns:1fr}.progress-overview{justify-items:start}.unit-content{grid-template-columns:1fr}.unit-progress{min-width:0}}.dashboard{background:var(--color-surface)}.section-card.card{padding:20px}.section-header{border-bottom:1px solid var(--color-border);margin-bottom:16px;padding-bottom:10px}.section-subtitle{color:var(--color-muted)}.dashboard-header.card{padding:20px}.header-grid{grid-gap:24px;align-items:center;display:grid;gap:24px;grid-template-columns:1fr auto}.welcome-title{margin:0 0 6px}.welcome-subtitle{color:var(--color-muted)}.dashboard-stats{margin-top:16px}.stats-grid{gap:16px}.stat-card{background:var(--color-bg);border:1px solid var(--color-border);border-radius:var(--radius)}.stat-value{font-weight:700}.continue-card.card{padding:0}.next-lesson{border-radius:var(--radius);padding:16px 20px}.next-lesson:hover{background:#f0f9ff}.lesson-meta{margin-top:6px}.continue-btn{background:var(--color-accent);border:1px solid var(--color-accent);color:#000;display:inline-block;font-weight:700;padding:10px 14px}.continue-btn,.units-list{border-radius:var(--radius)}.units-list{overflow:hidden}.unit-item{border-bottom:1px solid var(--color-border);grid-template-columns:40px 1fr 24px}.unit-item:hover{background:var(--color-surface);border-left:4px solid var(--color-accent);padding-left:16px}.unit-number{border-radius:var(--radius);font-weight:800;height:32px;width:32px}.unit-title{font-weight:700}.unit-desc{color:var(--color-muted)}.unit-progress{min-width:200px}.progress-fill{border-radius:999px}.quick-actions{gap:12px}.action-button{background:var(--color-bg);border:1px solid var(--color-border);border-radius:var(--radius)}.action-button:hover{background:#f0f9ff;border-color:#e0e7ff}@media (max-width:900px){.header-grid,.unit-content{grid-template-columns:1fr}.unit-progress{min-width:0}}:root{--bg:#f7f7f8;--surface:#fff;--surface-2:#fafafa;--text:#0f1720;--muted:#667085;--border:#e5e7eb;--border-2:#ececec;--ring:#111827;--accent:#111827;--accent-weak:#1f2937;--success:#16a34a;--shadow:0 1px 2px #1018280f,0 4px 12px #1018280f}.unit-view{background:#f7f7f8;background:var(--bg);min-height:100vh}.unit-header{background:#fff;background:var(--surface);border-bottom:1px solid #e5e7eb;border-bottom:1px solid var(--border);padding:2.25rem 0}.header-container{align-items:flex-start;display:flex;gap:1.75rem;margin:0 auto;max-width:1200px;padding:0 2rem}.back-button{background:#fafafa;background:var(--surface-2);border:1px solid #e5e7eb;border:1px solid var(--border);border-radius:8px;color:#0f1720;color:var(--text);font-size:.95rem;gap:.5rem;padding:.75rem 1.25rem;text-decoration:none;transition:all .12s ease;white-space:nowrap}.back-button:hover{background:#f3f4f6;border-color:#ececec;border-color:var(--border-2)}.back-button:focus-visible{box-shadow:0 0 0 3px #1118272e;outline:none}.unit-info{flex:1 1}.unit-info h1{color:#0f1720;color:var(--text);font-size:2.125rem;font-weight:700;letter-spacing:-.01em;line-height:1.2;margin:0 0 .75rem}.unit-info p{color:#667085;color:var(--muted);font-size:1.05rem;line-height:1.6;margin:0 0 1.25rem;max-width:720px}.unit-progress{align-items:center;display:flex;gap:1rem}.unit-progress span{color:#667085;color:var(--muted);font-size:.95rem;font-weight:500;white-space:nowrap}.progress-bar{background:#eee;border-radius:999px;height:8px;overflow:hidden;width:240px}.progress-fill{background:#111827;background:var(--accent);height:100%;transition:width .2s ease}.unit-stats{background:#fff;background:var(--surface);border-bottom:1px solid #e5e7eb;border-bottom:1px solid var(--border);border-top:1px solid #e5e7eb;border-top:1px solid var(--border);padding:1.25rem 0}.stats-container{align-items:center;display:flex;gap:1rem;justify-content:space-between;margin:0 auto;max-width:1200px;padding:0 2rem}.unit-stat{min-width:140px;text-align:center}.unit-stat strong{color:#0f1720;color:var(--text);display:block;font-size:1.35rem;font-weight:700;margin-bottom:.15rem}.unit-stat span{color:#667085;color:var(--muted);font-size:.8rem;font-weight:600;letter-spacing:.06em;text-transform:uppercase}.lessons-section{background:#fff;background:var(--surface);padding:2rem 0 3rem}.lessons-container{margin:0 auto;max-width:1200px;padding:0 2rem}.section-title{border-bottom:1px solid #e5e7eb;border-bottom:1px solid var(--border);color:#0f1720;color:var(--text);font-weight:700;margin:0 0 1.25rem;padding-bottom:.75rem}.lessons-list{display:flex;flex-direction:column;gap:12px}.lesson-card-link{color:inherit;display:block;text-decoration:none}.lesson-card{background:#fff;background:var(--surface);border:1px solid #e5e7eb;border:1px solid var(--border);border-radius:12px;box-shadow:0 0 0 #0000;padding:1.25rem;position:relative;transition:transform .12s ease,box-shadow .12s ease,border-color .12s ease}.lesson-card:hover{border-color:#ececec;border-color:var(--border-2);box-shadow:0 1px 2px #1018280f,0 4px 12px #1018280f;box-shadow:var(--shadow);transform:translateY(-1px)}.lesson-card.completed{background:#fbfefc;border-color:#dbece2}.lesson-card-header{align-items:flex-start;display:flex;gap:1rem}.lesson-number{align-items:center;background:#f2f4f7;border:1px solid #e5e7eb;border:1px solid var(--border);border-radius:8px;color:#0f1720;color:var(--text);display:flex;flex-shrink:0;font-size:.95rem;font-weight:700;height:36px;justify-content:center;width:36px}.lesson-card.completed .lesson-number{background:#ecfdf3;border-color:#d1fadf;color:#0f1720;color:var(--text)}.lesson-icon{color:#111827;color:var(--accent);flex-shrink:0;margin-top:2px}.lesson-card.completed .lesson-icon{color:#16a34a;color:var(--success)}.lesson-info{flex:1 1;min-width:0}.lesson-title{color:#0f1720;color:var(--text);font-size:1.1rem;font-weight:700;line-height:1.3;margin:0 0 .35rem}.lesson-meta{color:#667085;color:var(--muted);flex-wrap:wrap;font-size:.9rem;gap:1.25rem;margin:0 0 .75rem}.lesson-meta span{align-items:center;display:inline-flex;gap:.4rem}.lesson-description{color:#667085;color:var(--muted);font-size:.98rem;line-height:1.55;margin:0 0 .9rem}.lesson-progress{align-items:center;display:flex;gap:.75rem}.completed-badge{background:#16a34a;background:var(--success);border-radius:999px;color:#fff;font-size:.85rem;font-weight:700;padding:.35rem .8rem}.completed-badge,.not-started{align-items:center;display:inline-flex;gap:.45rem}.not-started{color:#667085;color:var(--muted);font-size:.9rem;font-weight:600}.lesson-status{align-items:center;display:flex;margin-left:auto}.start-lesson-btn{background:#0f1720;background:var(--text);border:1px solid #0f1720;border:1px solid var(--text);border-radius:8px;color:#fff;cursor:pointer;font-size:.9rem;font-weight:700;padding:.65rem 1.1rem;transition:background .12s ease,transform .12s ease,box-shadow .12s ease}.start-lesson-btn:hover{background:#1f2937;background:var(--accent-weak);transform:translateY(-.5px)}.start-lesson-btn:focus-visible{box-shadow:0 0 0 3px #1118272e;outline:none}.lesson-card.completed .start-lesson-btn{background:#2a2f35;border-color:#2a2f35}.lesson-card.completed .start-lesson-btn:hover{background:#1f2429}.empty-state{background:#fafafa;background:var(--surface-2);border:1px dashed #e5e7eb;border:1px dashed var(--border);border-radius:12px;color:#667085;color:var(--muted);margin-top:1rem;padding:3rem 2rem;text-align:center}.empty-state h3{color:#0f1720;color:var(--text);font-size:1.1rem;font-weight:700;margin:0 0 .35rem}@media (max-width:1024px){.header-container,.lessons-container,.stats-container{padding-left:1rem;padding-right:1rem}.unit-header{padding:2rem 0}.header-container{align-items:flex-start;flex-direction:column;gap:1.25rem}.unit-progress{justify-content:space-between;width:100%}.progress-bar{flex:1 1;max-width:360px}}@media (max-width:768px){.unit-info h1{font-size:1.75rem}.unit-info p{font-size:1rem}.lesson-card{padding:1rem}.lesson-card-header{gap:.85rem}.lesson-number{font-size:.875rem;height:32px;width:32px}.lesson-title{font-size:1.05rem}.lesson-meta{gap:.9rem}.stats-container{flex-direction:column;gap:.75rem;text-align:center}.unit-stat{align-items:center;display:flex;gap:.75rem;min-width:0}.unit-stat strong{margin-bottom:0}}@media (max-width:640px){.lesson-card{padding:.9rem}.lesson-card-header{align-items:flex-start;flex-direction:column;gap:.7rem}.lesson-number{align-self:flex-start}.lesson-meta{flex-direction:column;gap:.45rem}.lesson-progress{align-items:flex-start;flex-direction:column;gap:.6rem}.start-lesson-btn{margin-top:.5rem;width:100%}}.lesson-view{background:var(--color-surface);color:var(--color-text);display:flex;flex-direction:column;min-height:100vh}.lesson-header{padding:16px 0}.header-card{grid-gap:16px;align-items:center;display:grid;gap:16px;grid-template-columns:auto 1fr;padding:14px 16px}.back-button{align-items:center;background:#0000;border:1px solid var(--color-border);border-radius:var(--radius);color:var(--color-text);cursor:pointer;display:inline-flex;font-size:.92rem;font-weight:600;gap:8px;padding:10px 14px;transition:background-color .2s ease,border-color .2s ease,color .2s ease}.back-button:hover{background:#f0f9ff;border-color:#e0e7ff}.lesson-title{font-size:clamp(22px,3vw,28px);font-weight:800;margin:0 0 6px}.lesson-meta{color:var(--color-muted);display:flex;font-size:.95rem;font-weight:500;gap:16px}.lesson-type{align-items:center;display:inline-flex;gap:6px}.lesson-tabs{padding:8px 0 12px}.tabs-card{padding:0}.nav-tabs{display:flex;gap:4px;padding:6px}.nav-tab{align-items:center;background:#0000;border:none;border-bottom:2px solid #0000;border-radius:var(--radius);color:var(--color-muted);cursor:pointer;display:inline-flex;font-size:.95rem;font-weight:600;gap:8px;padding:12px 14px;transition:background-color .2s ease,color .2s ease,border-color .2s ease}.nav-tab:hover{background:#f9fafb;color:var(--color-text)}.nav-tab.active{border-bottom-color:var(--color-accent);color:var(--color-accent)}.lesson-body{padding:12px 0 24px}.content-grid{grid-gap:20px;display:grid;gap:20px;grid-template-columns:280px 1fr}.article-rail{align-self:start;padding:12px;position:-webkit-sticky;position:sticky;top:84px}.rail-title{font-size:.95rem;font-weight:700;margin:2px 0 10px}.rail-list{display:flex;flex-direction:column;gap:6px}.article-tab{background:#0000;border:1px solid var(--color-border);border-radius:var(--radius);color:var(--color-muted);cursor:pointer;font-size:.95rem;font-weight:600;padding:10px 12px;text-align:left;transition:background-color .2s ease,color .2s ease,border-color .2s ease;width:100%}.article-tab:hover{background:#f9fafb;color:var(--color-text)}.article-tab.active{background:#f0f9ff;border-color:#e0e7ff;color:var(--color-accent)}.viewer{grid-gap:16px;display:grid;gap:16px}.article-content-card{padding:16px}.article-title{font-size:1.25rem;font-weight:800;margin:0 0 10px}.article-body{color:#374151;font-size:1rem;line-height:1.65}.article-body p{margin-bottom:1rem}.video-card{padding:12px}.video-container{background:#000;border-radius:var(--radius);height:0;overflow:hidden;padding-bottom:56.25%;position:relative}.video-container iframe{border:0;height:100%;inset:0;position:absolute;width:100%}.video-description{padding:8px 4px 4px}.video-description h3{font-weight:700;margin:8px 0 4px}.video-description p{color:var(--color-muted)}.resources-card{padding:16px}.resources-card h3{font-weight:700;margin:0 0 10px}.resources-list{display:flex;flex-direction:column;gap:8px}.external-link{align-items:center;border:1px solid var(--color-border);border-radius:var(--radius);color:var(--color-accent);display:inline-flex;font-weight:600;gap:8px;padding:10px 12px;text-decoration:none;transition:background-color .2s ease,border-color .2s ease}.external-link:hover{background:#f0f9ff;border-color:#e0e7ff}.quiz-callout{align-items:center;display:flex;gap:16px;justify-content:space-between;padding:16px}.quiz-copy h3{font-weight:800;margin:0 0 6px}.quiz-copy p{color:var(--color-muted);margin:0}.start-quiz-button{background:var(--color-accent);border:1px solid var(--color-accent);border-radius:var(--radius);color:#000;cursor:pointer;font-weight:700;padding:10px 16px}.actions-card{padding:14px;text-align:center}.complete-button{align-items:center;background:var(--color-accent);border:none;border-radius:var(--radius);color:#000;cursor:pointer;display:inline-flex;font-size:1rem;font-weight:700;gap:8px;padding:12px 20px}.complete-button.completed{background:#10b981;color:#fff}.complete-button:disabled{cursor:not-allowed;opacity:.7}.lesson-footer{padding:0 0 24px}.nav-buttons{grid-gap:12px;display:grid;gap:12px;grid-template-columns:1fr 1fr;padding:12px}.nav-button{align-items:center;background:var(--color-bg);border:1px solid var(--color-border);border-radius:var(--radius);color:var(--color-text);cursor:pointer;display:inline-flex;font-weight:700;gap:8px;justify-content:center;padding:12px 16px;transition:background-color .2s ease,border-color .2s ease,color .2s ease}.nav-button:hover:not([aria-disabled=true]){background:#f0f9ff;border-color:#e0e7ff}.nav-button[aria-disabled=true]{cursor:not-allowed;opacity:.6}@media (max-width:992px){.content-grid{grid-template-columns:1fr}.article-rail{position:static}}@media (max-width:640px){.nav-buttons{grid-template-columns:1fr}}.navigation{background-color:#fff;border-bottom:1px solid #e5e7eb;box-shadow:0 1px 3px #0000001a;justify-content:space-between;padding:1rem 2rem;position:-webkit-sticky;position:sticky;top:0;z-index:100}.nav-brand,.navigation{align-items:center;display:flex}.nav-brand{color:#1a1a1a;font-size:1.5rem;font-weight:700;gap:.75rem;text-decoration:none}.nav-brand svg{color:#000}.logo-icon{height:36px;width:36px}.nav-links{gap:1rem}.nav-link,.nav-links{align-items:center;display:flex}.nav-link{background:none;border:none;border-radius:8px;color:#6b7280;cursor:pointer;font-size:.9rem;font-weight:500;gap:.5rem;padding:.5rem 1rem;transition:all .2s ease}.nav-link:hover{background-color:#f3f4f6;color:#1a1a1a}.nav-link.active{background-color:#000;color:#fff}.user-button,.user-menu{align-items:center;display:flex;gap:.5rem}.user-button{background:none;border:1px solid #e5e7eb;border-radius:8px;color:#6b7280;cursor:pointer;font-size:.9rem;font-weight:500;padding:.5rem 1rem;transition:all .2s ease}.user-button:hover{background-color:#f3f4f6;color:#1a1a1a}.logout-button{align-items:center;background:none;border:1px solid #e5e7eb;border-radius:8px;color:#000;cursor:pointer;display:flex;padding:.5rem;transition:all .2s ease}.logout-button:hover{background-color:#f3f4f6;border-color:#000}.mobile-menu-button{background:none;border:none;color:#6b7280;cursor:pointer;display:none;padding:.5rem}@media (max-width:768px){.mobile-menu-button{display:block}.nav-links{display:none}.navigation{padding:1rem}}.course-overview{background:var(--color-surface);color:var(--color-text);min-height:100vh}.container{margin:0 auto;max-width:1180px;max-width:var(--container-w,1180px);padding:0 16px;padding:0 var(--gutter,16px)}.card{background:var(--color-bg);border:1px solid var(--color-border);border-radius:var(--radius);box-shadow:0 2px 10px #00000008}.muted{color:var(--color-muted)}.course-hero{padding:24px 0 12px}.hero-card{grid-gap:16px;display:grid;gap:16px;padding:20px}.hero-head .course-title{font-size:clamp(26px,4vw,34px);font-weight:800;margin:0 0 6px}.course-subtitle{color:var(--color-muted);margin:0}.hero-meta{display:flex;flex-wrap:wrap;gap:12px 20px}.meta-item{align-items:center;background:var(--color-bg);border:1px solid var(--color-border);border-radius:var(--radius);display:inline-flex;font-weight:600;gap:8px;padding:8px 12px}.hero-actions{display:flex;flex-wrap:wrap;gap:12px}.btn-primary,.btn-secondary{background:var(--color-bg);border:1px solid var(--color-border);border-radius:var(--radius);cursor:pointer;font-weight:700;padding:12px 18px}.btn-primary{background:var(--color-accent);border-color:var(--color-accent);color:#000}.btn-primary:hover,.btn-secondary:hover{opacity:.9}.course-about{padding:12px 0 24px}.about-grid{grid-gap:16px;display:grid;gap:16px;grid-template-columns:1fr}.about-card{padding:16px}.section-title{font-size:1.25rem;font-weight:800;margin:0 0 8px}.bullet-list{margin:8px 0 0;padding-left:18px}.bullet-list li{margin:6px 0}@media (min-width:900px){.about-grid{grid-template-columns:1fr 1fr 1fr}}.course-syllabus{padding:8px 0 36px}.syllabus-list{grid-gap:10px;display:grid;gap:10px}.syllabus-item{overflow:hidden}.syllabus-item:not([open]) .chev-down,.syllabus-item[open] .chev-right{display:none}.syllabus-header{grid-gap:12px;align-items:center;cursor:pointer;display:grid;gap:12px;grid-template-columns:auto 1fr auto;list-style:none;padding:14px 16px}.syllabus-header::-webkit-details-marker{display:none}.unit-badge{background:var(--color-accent);border-radius:var(--radius);color:#000;display:grid;font-weight:800;height:32px;place-items:center;width:32px}.unit-headings .unit-title{font-weight:800;margin:0}.unit-desc{margin:6px 0 0}.unit-meta{color:var(--color-muted);font-size:.92rem;margin-top:8px}.lesson-list{grid-gap:8px;border-top:1px solid var(--color-border);display:grid;gap:8px;padding:10px 16px}.lesson-row{grid-gap:10px;align-items:center;background:var(--color-bg);display:grid;gap:10px;grid-template-columns:auto 1fr auto;padding:8px 6px}.lesson-dot{background:var(--color-accent);border-radius:50%;height:8px;width:8px}.lesson-info .lesson-title{font-weight:600}.lesson-info .lesson-meta{align-items:center;color:var(--color-muted);display:inline-flex;gap:6px;margin-top:4px}.lesson-start{background:var(--color-bg);border:1px solid var(--color-border);border-radius:var(--radius);cursor:pointer;font-weight:700;padding:8px 12px}.lesson-start:hover{background:#f0f9ff;border-color:#e0e7ff}.syllabus-cta{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;margin-top:16px}*{box-sizing:border-box;margin:0;padding:0}body{color:#1a1a1a;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;line-height:1.6}.App,body{background-color:#fff}.App{min-height:100vh}.progress-circle-container{align-items:center;display:flex;justify-content:center;position:relative}.progress-circle{display:block}.progress-text{align-items:center;display:flex;flex-direction:column;left:50%;position:absolute;text-align:center;top:50%;transform:translate(-50%,-50%)}.progress-percentage{color:#18181b;font-size:1.2rem;font-weight:700;line-height:1.1}.progress-label{color:#52525b;font-size:.5rem;font-weight:500}body{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;margin:0}code{font-family:source-code-pro,Menlo,Monaco,Consolas,Courier New,monospace}
/*# sourceMappingURL=main.fab51467.css.map*/