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button.active:focus{background:var(--success);color:#fff;border-color:var(--success);transform:translateY(-2px)}.skip-to-top{position:fixed;bottom:var(--space-4);right:var(--space-4);background:var(--primary);color:#fff;padding:var(--space-3)var(--space-4);border-radius:var(--radius-full);text-decoration:none;font-weight:600;display:flex;align-items:center;gap:var(--space-2);opacity:0;transform:translateY(100px);transition:all var(--transition);z-index:var(--z-fixed);box-shadow:var(--shadow-lg)}.skip-to-top.visible{opacity:1;transform:translateY(0)}.skip-to-top:hover,.skip-to-top:focus{background:var(--primary-hover);transform:translateY(-2px)}body.high-contrast{--text-primary:#000000;--text-secondary:#000000;--bg-primary:#ffffff;--bg-secondary:#f0f0f0;--border-primary:#000000;--primary:#0000ff}body.focus-mode .page-hero-pattern,body.focus-mode .hero-grid,body.focus-mode .service-card::before{display:none}body.focus-mode{--shadow:none;--shadow-md:none;--shadow-lg:none}body.large-font{font-size:1.125rem}body.large-font .prose-content{font-size:1.25rem;line-height:1.8}body.small-font{font-size:.875rem}@media(max-width:1024px){.content-wrapper{grid-template-columns:1fr}.toc-sidebar{order:-1;position:static}.toc-details{margin-bottom:var(--space-6)}}@media(max-width:768px){.page-hero{padding:var(--space-8)0 var(--space-6)}.page-title{font-size:var(--text-3xl)}.breadcrumb ol{flex-wrap:wrap}.page-hero .post-meta{flex-direction:column;gap:var(--space-2)}.accessibility-options{grid-template-columns:1fr}}@media print{.page-hero-pattern,.accessibility-panel,.skip-to-top,.toc-sidebar{display:none}.content-wrapper{grid-template-columns:1fr}}