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1.5rem;--spacing-xl: 2rem;--spacing-2xl: 3rem;--spacing-3xl: 4rem;--container-max-width: 1140px;--navbar-height: 60px;--radius-sm: 0.25rem;--radius-md: 0.375rem}*,*::before,*::after{box-sizing:border-box}html{line-height:1.5;-webkit-text-size-adjust:100%}body{margin:0;font-family:var(--font-family);font-size:var(--font-size-base);color:var(--color-text);background-color:var(--color-surface)}main{display:block}h1,h2,h3,h4,h5,h6{margin-top:0;margin-bottom:var(--spacing-md);font-weight:600;line-height:1.2}h1{font-size:var(--font-size-3xl)}h2{font-size:var(--font-size-2xl)}h3{font-size:var(--font-size-xl)}h4{font-size:var(--font-size-lg)}h5{font-size:var(--font-size-base)}p{margin-top:0;margin-bottom:var(--spacing-md)}a{color:var(--color-link);text-decoration:none}a:hover{color:var(--color-link-hover);text-decoration:underline}img{max-width:100%;height:auto}ul,ol{margin-top:0;margin-bottom:var(--spacing-md);padding-left:var(--spacing-xl)}hr{margin:var(--spacing-xl) 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a{color:rgba(255,255,255,.9);text-decoration:underline;text-underline-offset:2px}.hero-meta a:hover{color:#fff}.btn-amazon{background:#fff;color:var(--color-primary-dark);font-weight:600;font-size:var(--font-size-sm);padding:var(--spacing-sm) var(--spacing-lg);border-radius:var(--radius-md);text-decoration:none;display:inline-block;transition:background .2s ease,transform .2s ease;margin-top:var(--spacing-lg);box-shadow:0 2px 8px rgba(0,0,0,.2)}.btn-amazon:hover{background:#f0f0f0;color:var(--color-primary-dark);text-decoration:none;transform:translateY(-1px)}.content-section{padding:var(--spacing-xl) var(--spacing-md);background:var(--color-surface)}.content-section .container{max-width:800px;background:rgba(255,255,255,.75);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-radius:16px;border:1px solid rgba(92,79,165,.15);box-shadow:0 4px 24px rgba(50,38,130,.1);padding:var(--spacing-xl)}.content-section .lead{font-size:var(--font-size-xl);font-weight:400;color:var(--color-text);line-height:1.7;margin-bottom:var(--spacing-lg)}.content-section p{font-size:var(--font-size-lg);line-height:1.8;color:var(--color-text-muted);margin-bottom:var(--spacing-md)}.hero-content .lead{font-size:var(--font-size-lg);font-weight:300;color:rgba(255,255,255,.9);margin-bottom:var(--spacing-md);max-width:600px;line-height:1.6;text-shadow:0 1px 2px rgba(0,0,0,.2)}@media (max-width: 768px){.hero-content .lead{font-size:var(--font-size-base)}}.topics-section{padding:var(--spacing-xl) var(--spacing-md);background:linear-gradient(180deg, #e8e6f2 0%, var(--color-surface) 100%)}.topics-section .container{background:rgba(255,255,255,.75);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-radius:16px;border:1px solid rgba(92,79,165,.15);box-shadow:0 4px 24px rgba(50,38,130,.1);padding:var(--spacing-xl)}.topics-section h2{text-align:center;margin-bottom:var(--spacing-lg);color:var(--color-primary-dark)}.topics-list{display:grid;grid-template-columns:1fr;gap:var(--spacing-xs);list-style:none;padding:0;margin:0}@media (min-width: 768px){.topics-list{grid-template-columns:1fr 1fr}}.topics-list li{padding-left:var(--spacing-lg);position:relative;color:var(--color-text);line-height:1.7;font-weight:500}.topics-list li::before{content:"→";position:absolute;left:0;color:var(--color-primary);font-weight:600}.testimonials-section{padding:var(--spacing-md) var(--spacing-md);background:var(--color-surface)}.testimonials-section .container{background:rgba(255,255,255,.75);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-radius:16px;border:1px solid rgba(92,79,165,.15);box-shadow:0 4px 24px rgba(50,38,130,.1);padding:var(--spacing-xl)}.testimonials-section 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tbody tr:hover{background:rgba(37,99,235,.05)}.slides-table{width:100%;border-collapse:collapse}.clickable-row{cursor:pointer;transition:background-color .2s ease}.clickable-row:hover{background:rgba(92,79,165,.4) !important;color:var(--color-primary-dark)}.clickable-row a{color:inherit;text-decoration:none;display:block;width:100%}.clickable-row a:hover{color:inherit;text-decoration:none}.text-muted{color:var(--color-text-muted)}.mb-3{margin-bottom:var(--spacing-md)}.mb-4{margin-bottom:var(--spacing-lg)}.my-5{margin-top:var(--spacing-xl);margin-bottom:var(--spacing-xl)}.d-none{display:none}.d-md-none{display:none}.d-md-block{display:none}@media (max-width: 767px){.d-md-none{display:block}}@media (min-width: 768px){.d-md-none{display:none}.d-md-block{display:block}}.list-unstyled{padding-left:0;list-style:none}