.lesson-deck{--ld-navy:#1a365d;--ld-navy-dark:#0f2340;--ld-gold:#d4a843;--ld-gold-light:#f0d078;--ld-blue-gray:#f0f4f8;--ld-blue-gray-light:#f7f9fc;--ld-text-dark:#1a2332;--ld-text-medium:#4a5568;--ld-text-light:#718096;--ld-white:#fff;--ld-shadow-sm:0 2px 8px #0000000f;--ld-shadow-md:0 4px 16px #0000001a;--ld-shadow-lg:0 8px 32px #0000001f;--ld-radius-md:12px;--ld-radius-lg:20px;--ld-radius-xl:28px;background:var(--ld-blue-gray-light);height:calc(100vh - 64px);color:var(--ld-text-dark);flex-direction:column;font-family:Inter,-apple-system,BlinkMacSystemFont,sans-serif;display:flex;overflow:hidden}.ld-slides-wrapper{flex:1;position:relative;overflow:hidden}.ld-slide{opacity:0;pointer-events:none;justify-content:center;align-items:center;padding:40px 80px;transition:all .5s cubic-bezier(.4,0,.2,1);display:flex;position:absolute;inset:0;overflow-y:auto;transform:translate(60px)}.ld-slide.active{opacity:1;pointer-events:all;transform:translate(0)}.ld-slide.prev{opacity:0;transform:translate(-60px)}.ld-label{letter-spacing:2.5px;text-transform:uppercase;color:var(--ld-gold);margin-bottom:16px;font-size:.75rem;font-weight:700;display:inline-block}.ld-heading{color:var(--ld-navy);letter-spacing:-1px;white-space:pre-line;margin-bottom:20px;font-size:2.8rem;font-weight:900;line-height:1.1}.ld-heading-sm{font-size:2.2rem}.ld-text{color:var(--ld-text-medium);max-width:520px;margin-bottom:28px;font-size:1.1rem;line-height:1.7}.ld-btn{background:var(--ld-gold);color:var(--ld-white);cursor:pointer;letter-spacing:.3px;border:none;border-radius:10px;align-items:center;gap:8px;padding:14px 30px;font-size:1rem;font-weight:700;text-decoration:none;transition:all .25s;display:inline-flex}.ld-btn:hover{background:var(--ld-gold-light);transform:translateY(-2px);box-shadow:0 6px 20px #d4a84359}.ld-btn-secondary{background:var(--ld-navy)}.ld-btn-secondary:hover{background:var(--ld-navy-dark);box-shadow:0 6px 20px #1a365d59}.ld-hero-img{border-radius:var(--ld-radius-xl);width:100%;max-width:480px;box-shadow:var(--ld-shadow-lg);object-fit:cover}.ld-slide-title{align-items:center;gap:60px;width:100%;max-width:1200px;display:flex}.ld-slide-title .ld-text-side{flex:1.1}.ld-slide-title .ld-image-side{flex:1}.ld-slide-comparison{flex-direction:column;gap:28px;width:100%;max-width:1200px;display:flex}.ld-comparison-header{text-align:left}.ld-comparison-intro{color:var(--ld-text-medium);max-width:700px;font-size:1.05rem;line-height:1.7}.ld-comparison-cards{gap:24px;display:flex}.ld-compare-card{background:var(--ld-white);border-radius:var(--ld-radius-lg);box-shadow:var(--ld-shadow-md);flex:1;padding:0;transition:transform .3s,box-shadow .3s;overflow:hidden}.ld-compare-card:hover{box-shadow:var(--ld-shadow-lg);transform:translateY(-4px)}.ld-compare-card.highlight{border:2px solid var(--ld-gold)}.ld-compare-card img{aspect-ratio:4/3;object-fit:cover;object-position:top center;width:100%}.ld-compare-card-body{padding:24px}.ld-compare-card-title{color:var(--ld-navy);margin-bottom:12px;font-size:1.2rem;font-weight:800}.ld-compare-card.highlight .ld-compare-card-title{color:var(--ld-gold)}.ld-compare-card ul{flex-direction:column;gap:10px;margin:0;padding:0;list-style:none;display:flex}.ld-compare-card li{color:var(--ld-text-medium);font-size:.92rem;line-height:1.5}.ld-compare-card li strong{color:var(--ld-navy);font-weight:700}.ld-slide-concept{align-items:center;gap:50px;width:100%;max-width:1200px;display:flex}.ld-concept-text{flex:1.2}.ld-concept-bullets{flex-direction:column;gap:16px;margin-top:20px;padding:0;list-style:none;display:flex}.ld-concept-bullets li{color:var(--ld-text-medium);padding-left:20px;font-size:.95rem;line-height:1.6;position:relative}.ld-concept-bullets li:before{content:"";background:var(--ld-gold);border-radius:50%;width:8px;height:8px;position:absolute;top:8px;left:0}.ld-concept-bullets li strong{color:var(--ld-navy);font-weight:700}.ld-concept-image{flex:.9}.ld-concept-image img{border-radius:var(--ld-radius-xl);width:100%;max-width:420px;box-shadow:var(--ld-shadow-lg)}.ld-stat-cards{gap:20px;margin-top:28px;display:flex}.ld-stat-card{background:var(--ld-white);border-radius:var(--ld-radius-md);text-align:center;box-shadow:var(--ld-shadow-sm);border-top:3px solid var(--ld-gold);flex:1;padding:20px;transition:transform .25s}.ld-stat-card:hover{transform:translateY(-3px)}.ld-stat-number{color:var(--ld-navy);margin-bottom:6px;font-size:2.4rem;font-weight:900}.ld-stat-desc{color:var(--ld-text-medium);margin-bottom:6px;font-size:.8rem;line-height:1.4}.ld-stat-source{color:var(--ld-text-light);font-size:.7rem;font-style:italic}.ld-key-takeaway{color:var(--ld-navy);max-width:520px;margin-bottom:20px;font-size:1rem;font-weight:600;line-height:1.6}.ld-resources{background:var(--ld-white);border-radius:var(--ld-radius-md);box-shadow:var(--ld-shadow-sm);border-top:3px solid var(--ld-gold);padding:20px}.ld-resources-label{color:var(--ld-gold);letter-spacing:1px;margin-bottom:12px;font-size:.75rem;font-weight:700}.ld-resources a{color:var(--ld-navy);font-size:.9rem;text-decoration:underline}.ld-resources a:hover{color:var(--ld-gold)}.ld-nav-arrow{background:var(--ld-white);cursor:pointer;z-index:50;width:48px;height:48px;box-shadow:var(--ld-shadow-sm);color:var(--ld-text-medium);border:1px solid #e2e8f0;border-radius:50%;justify-content:center;align-items:center;font-size:1.2rem;transition:all .25s;display:flex;position:fixed;top:50%;transform:translateY(-50%)}.ld-nav-arrow:hover{background:var(--ld-navy);color:var(--ld-white);border-color:var(--ld-navy);box-shadow:var(--ld-shadow-md)}.ld-nav-arrow.left{left:20px}.ld-nav-arrow.right{right:20px}.ld-nav-arrow.disabled{opacity:.3;cursor:default;pointer-events:none}.ld-progress-bar{background:var(--ld-white);border-top:1px solid #e2e8f0;justify-content:center;align-items:center;gap:10px;padding:16px 0 20px;display:flex}.ld-progress-dot{cursor:pointer;background:#cbd5e1;border-radius:50%;width:10px;height:10px;transition:all .3s}.ld-progress-dot.active{background:var(--ld-navy);border-radius:5px;width:28px}.ld-bottom-nav{background:var(--ld-white);justify-content:space-between;align-items:center;padding:0 40px 8px;display:flex}.ld-bottom-nav a{color:var(--ld-text-medium);font-size:.85rem;font-weight:600;text-decoration:none;transition:color .2s}.ld-bottom-nav a:hover{color:var(--ld-navy)}.ld-btn-group{gap:16px;margin-top:16px;display:flex}@media (max-width:1024px){.ld-slide{padding:20px 40px}.ld-slide-title{flex-direction:column;gap:24px}.ld-heading{font-size:2rem}.ld-heading-sm{font-size:1.6rem}.ld-comparison-cards{flex-direction:column}.ld-slide-concept{flex-direction:column;gap:24px}.ld-stat-cards{flex-direction:column}}@media (max-width:640px){.ld-slide{padding:20px}.ld-heading{font-size:1.6rem}.ld-nav-arrow{display:none}.ld-bottom-nav{padding:0 20px 8px}}