*{margin:0;padding:0;box-sizing:border-box}:root{--color-primary:#2563eb;--color-primary-dark:#1d4ed8;--color-primary-light:#60a5fa;--color-secondary:#16a34a;--color-accent:#f59e0b;--color-white:#fff;--color-gray-50:#f9fafb;--color-gray-100:#f3f4f6;--color-gray-200:#e5e7eb;--color-gray-300:#d1d5db;--color-gray-400:#9ca3af;--color-gray-500:#6b7280;--color-gray-600:#4b5563;--color-gray-700:#374151;--color-gray-800:#1f2937;--color-gray-900:#111827;--color-dark-bg:#0f172a;--color-dark-surface:#1e293b;--color-dark-border:#334155;--font-sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;--font-mono:"JetBrains Mono","Fira Code",Consolas,monospace;--space-1:0.25rem;--space-2:0.5rem;--space-3:0.75rem;--space-4:1rem;--space-6:1.5rem;--space-8:2rem;--space-12:3rem;--space-16:4rem;--space-20:5rem;--space-24:6rem;--shadow-sm:0 1px 2px 0 rgba(0,0,0,.05);--shadow-md:0 4px 6px -1px rgba(0,0,0,.1),0 2px 4px -1px rgba(0,0,0,.06);--shadow-lg:0 10px 15px -3px rgba(0,0,0,.1),0 4px 6px -2px rgba(0,0,0,.05);--shadow-xl:0 20px 25px -5px rgba(0,0,0,.1),0 10px 10px -5px rgba(0,0,0,.04);--radius-sm:0.375rem;--radius-md:0.5rem;--radius-lg:0.75rem;--radius-xl:1rem;--radius-2xl:1.5rem;--transition-fast:150ms cubic-bezier(0.4,0,0.2,1);--transition-normal:300ms cubic-bezier(0.4,0,0.2,1);--transition-slow:500ms cubic-bezier(0.4,0,0.2,1)}[data-theme=dark]{--color-bg-primary:var(--color-dark-bg);--color-bg-secondary:var(--color-dark-surface);--color-text-primary:var(--color-white);--color-text-secondary:var(--color-gray-300);--color-border:var(--color-dark-border)}:root,[data-theme=light]{--color-bg-primary:var(--color-white);--color-bg-secondary:var(--color-gray-50);--color-text-primary:var(--color-gray-900);--color-text-secondary:var(--color-gray-600);--color-border:var(--color-gray-200)}html{scroll-behavior:smooth;font-size:16px}body{font-family:var(--font-sans);line-height:1.6;color:var(--color-text-primary);background-color:var(--color-bg-primary);transition:background-color var(--transition-normal),color var(--transition-normal);overflow-x:hidden}[data-theme=dark] 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var(--space-8)}}.grid{display:grid;gap:var(--space-6)}.grid-cols-1{grid-template-columns:1fr}.grid-cols-2{grid-template-columns:repeat(2,1fr)}.grid-cols-3{grid-template-columns:repeat(3,1fr)}.grid-cols-4{grid-template-columns:repeat(4,1fr)}@media (max-width:768px){.grid-cols-2,.grid-cols-3,.grid-cols-4{grid-template-columns:1fr}}@media (min-width:768px) and (max-width:1024px){.grid-cols-3,.grid-cols-4{grid-template-columns:repeat(2,1fr)}}.btn{display:inline-flex;align-items:center;justify-content:center;padding:var(--space-3) var(--space-6);border:none;border-radius:var(--radius-lg);font-weight:600;font-size:1rem;cursor:pointer;transition:all var(--transition-fast);text-decoration:none;white-space:nowrap}.btn-primary{background-color:var(--color-primary);color:var(--color-white);box-shadow:var(--shadow-md)}.btn-primary:hover{background-color:var(--color-primary-dark);transform:translateY(-1px);box-shadow:var(--shadow-lg);color:var(--color-white)}.btn-secondary{background-color:transparent;color:var(--color-primary);border:2px solid var(--color-primary)}.btn-secondary:hover{background-color:var(--color-primary);color:var(--color-white);transform:translateY(-1px)}.btn-large{padding:var(--space-4) var(--space-8);font-size:1.125rem}.card{background-color:var(--color-bg-secondary);border:1px solid var(--color-border);border-radius:var(--radius-xl);padding:var(--space-6);box-shadow:var(--shadow-sm);transition:all var(--transition-normal)}.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg)}[data-theme=dark] .card{background-color:var(--color-dark-surface);border-color:var(--color-dark-border)}[data-theme=dark] .card,[data-theme=dark] .card h3,[data-theme=dark] .card h4{color:var(--color-white)}[data-theme=dark] .card p{color:var(--color-gray-300)}.card-feature{text-align:center;padding:var(--space-8)}.card-centered{max-width:600px;margin:0 auto}.card-feature-icon{width:64px;height:64px;margin:0 auto var(--space-4);background-color:var(--color-primary);border-radius:var(--radius-xl);display:flex;align-items:center;justify-content:center;font-size:1.5rem;color:var(--color-white)}.navbar{position:sticky;top:0;z-index:1000;background-color:hsla(0,0%,100%,.95);backdrop-filter:blur(10px);border-bottom:1px solid var(--color-border);transition:all var(--transition-normal)}[data-theme=dark] .navbar{background-color:rgba(15,23,42,.95)}.navbar-content{display:flex;align-items:center;justify-content:space-between;height:80px}.navbar-brand{font-size:1.5rem;font-weight:700;color:var(--color-primary)}.navbar-nav{display:flex;align-items:center;gap:var(--space-8);list-style:none}.navbar-nav a{color:var(--color-text-secondary);font-weight:500;transition:color var(--transition-fast)}.navbar-nav a:hover{color:var(--color-primary)}.theme-toggle{background:none;border:2px solid var(--color-border);border-radius:var(--radius-lg);width:48px;height:48px;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:1.25rem;transition:all var(--transition-fast)}.theme-toggle:hover{border-color:var(--color-primary);transform:scale(1.05)}.mobile-menu-button{display:none;background:none;border:none;font-size:1.5rem;cursor:pointer;color:var(--color-text-primary)}.mobile-menu-overlay{position:fixed;inset:0;z-index:50;background-color:rgba(0,0,0,.5)}.mobile-menu-content{position:fixed;right:0;top:0;height:100vh;width:16rem;background-color:var(--color-bg-primary);padding:var(--space-6);box-shadow:var(--shadow-xl)}[data-theme=dark] .mobile-menu-content{background-color:var(--color-dark-surface);border-left:1px solid var(--color-dark-border)}.mobile-menu-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--space-8)}.mobile-menu-title{font-size:1.125rem;font-weight:700;color:var(--color-text-primary)}.mobile-menu-close{background:none;border:none;font-size:1.5rem;cursor:pointer;color:var(--color-text-primary);padding:0;line-height:1}.mobile-menu-nav{display:flex;flex-direction:column;gap:var(--space-4)}.mobile-menu-link{display:block;padding:var(--space-2) 0;font-size:1.125rem;color:var(--color-text-secondary);transition:color var(--transition-fast)}.mobile-menu-link:hover{color:var(--color-primary)}@media (max-width:768px){.navbar-nav{display:none}.mobile-menu-button{display:block}}.hero{padding:var(--space-24) 0;background:linear-gradient(135deg,var(--color-bg-primary) 0,var(--color-gray-50) 100%);position:relative;overflow:hidden}[data-theme=dark] .hero{background:linear-gradient(135deg,var(--color-dark-bg) 0,var(--color-dark-surface) 100%)}[data-theme=dark] 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