:root{--primary-color:#2563eb;--secondary-color:#1e40af;--accent-color:#f59e0b;--success-color:#10b981;--warning-color:#f59e0b;--error-color:#ef4444;--gray-50:#f9fafb;--gray-100:#f3f4f6;--gray-200:#e5e7eb;--gray-300:#d1d5db;--gray-400:#9ca3af;--gray-500:#6b7280;--gray-600:#4b5563;--gray-700:#374151;--gray-800:#1f2937;--gray-900:#111827;--text-primary:var(--gray-900);--text-secondary:var(--gray-600);--text-muted:var(--gray-500);--text-inverse:white;--bg-primary:white;--bg-secondary:var(--gray-50);--bg-muted:var(--gray-100);--font-primary:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;--font-heading:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;--font-mono:'SF Mono',Monaco,'Cascadia Code','Roboto Mono',monospace;--fw-normal:400;--fw-medium:500;--fw-semibold:600;--fw-bold:700;--fw-extrabold:800;--spacing-xs:0.25rem;--spacing-sm:0.5rem;--spacing-md:1rem;--spacing-lg:1.5rem;--spacing-xl:2rem;--spacing-2xl:2.5rem;--spacing-3xl:3rem;--spacing-4xl:4rem;--radius-sm:0.375rem;--radius-md:0.5rem;--radius-lg:0.75rem;--radius-xl:1rem;--radius-full:9999px;--shadow-sm:0 1px 2px 0 rgb(0 0 0 / 0.05);--shadow-md:0 4px 6px -1px rgb(0 0 0 / 0.1),0 2px 4px -2px rgb(0 0 0 / 0.1);--shadow-lg:0 10px 15px -3px rgb(0 0 0 / 0.1),0 4px 6px -4px rgb(0 0 0 / 0.1);--shadow-xl:0 20px 25px -5px rgb(0 0 0 / 0.1),0 8px 10px -6px rgb(0 0 0 / 0.1);--transition-fast:0.15s ease-out;--transition-normal:0.3s ease-out;--transition-slow:0.5s ease-out;--breakpoint-sm:640px;--breakpoint-md:768px;--breakpoint-lg:1024px;--breakpoint-xl:1280px}*,::after,::before{margin:0;padding:0;box-sizing:border-box}html{font-size:16px;scroll-behavior:smooth;-webkit-text-size-adjust:100%;-webkit-tap-highlight-color:transparent}body{font-family:var(--font-primary);font-weight:var(--fw-normal);line-height:1.6;color:var(--text-primary);background-color:var(--bg-primary);overflow-x:hidden}.skip-link{position:absolute;top:-40px;left:6px;background:var(--primary-color);color:var(--text-inverse);padding:var(--spacing-sm) var(--spacing-md);text-decoration:none;border-radius:var(--radius-sm);z-index:1000;font-weight:var(--fw-semibold);transition:top var(--transition-fast)}.skip-link:focus{top:6px}:focus{outline:2px solid var(--accent-color);outline-offset:2px}.container{width:100%;max-width:1200px;margin:0 auto;padding:0 var(--spacing-md)}@media (min-width:768px){.container{padding:0 var(--spacing-xl)}}.header{position:fixed;top:0;left:0;right:0;background:rgba(255,255,255,.95);backdrop-filter:blur(10px);border-bottom:1px solid var(--gray-200);z-index:100;transition:all var(--transition-normal)}.nav{display:flex;align-items:center;justify-content:space-between;padding:var(--spacing-md) var(--spacing-md);position:relative}.nav-brand{display:flex;align-items:center;gap:var(--spacing-sm);font-weight:var(--fw-bold);color:var(--primary-color)}.nav-logo{font-size:1.5rem}.nav-title{font-size:1.125rem;white-space:nowrap}.nav-toggle{display:none;background:0 0;border:none;cursor:pointer;padding:var(--spacing-sm);border-radius:var(--radius-sm);position:relative;z-index:101}.nav-toggle-icon{display:block;width:24px;height:2px;background:var(--text-primary);position:relative;transition:all var(--transition-normal)}.nav-toggle-icon::after,.nav-toggle-icon::before{content:'';display:block;width:24px;height:2px;background:var(--text-primary);position:absolute;transition:all var(--transition-normal)}.nav-toggle-icon::before{top:-6px}.nav-toggle-icon::after{top:6px}.nav-menu{display:flex;align-items:center;gap:var(--spacing-xl)}.nav-list{display:flex;align-items:center;gap:var(--spacing-lg);list-style:none}.nav-link{text-decoration:none;color:var(--text-secondary);font-weight:var(--fw-medium);transition:color var(--transition-fast);position:relative}.nav-link:hover{color:var(--primary-color)}.nav-link::after{content:'';position:absolute;bottom:-4px;left:0;width:0;height:2px;background:var(--primary-color);transition:width var(--transition-fast)}.nav-link:hover::after{width:100%}@media (max-width:767px){.nav-toggle{display:block}.nav-menu{position:absolute;top:100%;left:0;right:0;background:#fff;border-bottom:1px solid var(--gray-200);flex-direction:column;gap:0;padding:var(--spacing-lg) var(--spacing-md);transform:translateY(-100%);opacity:0;visibility:hidden;transition:all var(--transition-normal)}.nav-menu.active{transform:translateY(0);opacity:1;visibility:visible}.nav-list{flex-direction:column;gap:var(--spacing-md);width:100%}.nav-link{padding:var(--spacing-sm) 0;width:100%}.nav-toggle[aria-expanded=true] .nav-toggle-icon{background:0 0}.nav-toggle[aria-expanded=true] .nav-toggle-icon::before{transform:rotate(45deg);top:0}.nav-toggle[aria-expanded=true] .nav-toggle-icon::after{transform:rotate(-45deg);top:0}}.btn{display:inline-flex;align-items:center;justify-content:center;padding:var(--spacing-sm) var(--spacing-lg);border:none;border-radius:var(--radius-md);font-weight:var(--fw-semibold);font-size:.875rem;text-decoration:none;cursor:pointer;transition:all var(--transition-fast);position:relative;overflow:hidden;white-space:nowrap}.btn:disabled{opacity:.6;cursor:not-allowed}.btn-primary{background:var(--primary-color);color:var(--text-inverse);box-shadow:var(--shadow-sm)}.btn-primary:hover:not(:disabled){background:var(--secondary-color);transform:translateY(-1px);box-shadow:var(--shadow-md)}.btn-secondary{background:0 0;color:var(--primary-color);border:2px solid var(--primary-color)}.btn-secondary:hover:not(:disabled){background:var(--primary-color);color:var(--text-inverse);transform:translateY(-1px)}.btn-large{padding:var(--spacing-md) var(--spacing-xl);font-size:1rem}.hero{position:relative;padding:calc(80px + var(--spacing-3xl)) 0 var(--spacing-3xl);overflow:hidden;min-height:100vh;display:flex;align-items:center}.hero-content{display:grid;grid-template-columns:1fr;gap:var(--spacing-3xl);align-items:center;text-align:center}@media (min-width:768px){.hero-content{grid-template-columns:1fr 1fr;text-align:left;gap:var(--spacing-4xl)}}.hero-title{font-family:var(--font-heading);font-size:clamp(2rem, 5vw, 3.5rem);font-weight:var(--fw-extrabold);line-height:1.2;color:var(--text-primary);margin-bottom:var(--spacing-md)}.hero-subtitle{display:block;font-size:clamp(1.5rem, 3vw, 2rem);color:var(--primary-color);margin-top:var(--spacing-sm)}.hero-description{font-size:1.125rem;color:var(--text-secondary);margin-bottom:var(--spacing-xl);max-width:600px}.hero-actions{display:flex;flex-direction:column;gap:var(--spacing-md);margin-bottom:var(--spacing-xl)}@media (min-width:640px){.hero-actions{flex-direction:row;gap:var(--spacing-lg)}}.hero-meta{display:flex;flex-direction:column;gap:var(--spacing-xs);color:var(--text-muted);font-size:.875rem}@media (min-width:640px){.hero-meta{flex-direction:row;gap:var(--spacing-lg)}}.hero-image{display:flex;justify-content:center;align-items:center}.book-cover{width:100%;max-width:400px;height:auto;border-radius:var(--radius-lg);box-shadow:var(--shadow-xl);transition:transform var(--transition-normal)}.book-cover:hover{transform:scale(1.05)}.hero-video{position:absolute;top:0;left:0;width:100%;height:100%;z-index:-2}.hero-video-bg{width:100%;height:100%;object-fit:cover;object-position:center}.hero-video-overlay{position:absolute;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,.15);z-index:-1}.hero .container{position:relative;z-index:1}.hero .hero-subtitle,.hero .hero-title{color:#fff;text-shadow:2px 2px 4px rgba(0,0,0,.7)}.hero .hero-description{color:rgba(255,255,255,.95);text-shadow:1px 1px 2px rgba(0,0,0,.7)}.hero .hero-meta{color:rgba(255,255,255,.8);text-shadow:1px 1px 2px rgba(0,0,0,.7)}.bonus-loading,.compass-loading,.faq-loading,.testimonials-loading,.toc-loading{display:flex;align-items:center;justify-content:center;padding:var(--spacing-3xl);color:var(--text-muted);font-style:italic}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.visually-hidden{position:absolute!important;width:1px!important;height:1px!important;padding:0!important;margin:-1px!important;overflow:hidden!important;clip:rect(0,0,0,0)!important;white-space:nowrap!important;border:0!important}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,::after,::before{animation-duration:0s!important;animation-iteration-count:1!important;transition-duration:0s!important;scroll-behavior:auto!important}}